Closing device with electrical contact

Abstract

A closing device for releasably connecting two parts includes a first closing part which has a first engaging projection, and a second closing part which has a second engaging projections. The first closing part and the second closing part can be attached to each other in order to close the closing device and, in a closed position, are interconnected mechanically by the first engaging projection and the second engaging projection is in engagement with each other in a positive locking manner in the closed position. A magnetic device acting between the first closing part and the second closing part is designed to assist the attaching of the first closing part and the second closing part to each other by providing a magnetic attraction force. The first closing part has at least one first electrical contact element and the second closing part has at least one second electrical contact element.

Claims

1. A closing device for releasably connecting two parts, comprising a first closing part comprising a first engaging projection, a second closing part comprising a second engaging projection, wherein the first closing part and the second closing part can be attached to each other in order to close the closing device and, in a closed position, are interconnected mechanically by the first engaging projection and the second engaging projection being in engagement with each other in a positive locking manner in the closed position, a magnetic device which acts between the first closing part and the second closing part and is designed to assist the attaching of the first closing part and the second closing part to each other by providing a magnetic attraction force, and a blocking element which is arranged on one of the closing parts and, when the closing parts are attached to each other, is deflectable out of a basic position on the associated closing part in such a manner that the first engaging projection and the second engaging projection can be brought into engagement with each other in order to close the closing device, wherein the first closing part has at least one first electrical contact element and the second closing part has at least one second electrical contact element, wherein, in the closed position, the at least one first electrical contact element and the at least one second electrical contact element are operatively connected to one another in an electrically contacting manner, wherein the blocking element is configured to move back into its basic position during or after establishing the engagement in order to, in the closed position, block the positive locking engagement of the first engaging projection and the second engaging projection with each other, and wherein the first closing part comprises a first base body and the second closing part comprises a second base body, the first engaging projection being formed rigidly on the first base body and the second engaging projection being formed rigidly on the second base body.

2. The closing device as claimed in claim 1, wherein the blocking element is arranged pivotably on the associated closing part, wherein, in the closed position, the blocking element engages in a blocking manner in an engaging opening on the other closing part.

3. The closing device as claimed in claim 1, wherein one of the closing parts has a guide element which, when the closing parts are attached, engages in a guide opening in the other of the closing parts in order to guide the attaching movement of the closing parts to each other.

4. The closing device as claimed in claim 1, wherein the first closing part and the second closing part each have at least one magnetic element which together form the magnetic device and interact in a magnetically attracting manner during the closing of the closing device.

5. The closing device as claimed in claim 4, wherein the at least one magnetic element of the first closing part and the at least one magnetic element of the second closing part are designed to interact, when the first closing part and the second closing part are attached to each other, in such a manner that a component of the magnetic attraction force acts in an engaging direction in which the first engaging projection and the second engaging projection can be brought into engagement with each other.

6. The closing device as claimed in claim 1, wherein two first engaging projections are arranged on the first closing part and two second engaging projections are arranged on the second closing part, wherein the first engaging projections forming a first engaging device and the second engaging projections forming a second engaging device each extend at an angle to one another.

7. The closing device as claimed in claim 6, wherein the first engaging projections and the second engaging projections are each extended obliquely with respect to an engaging direction in which the engaging devices can be brought into engagement with each other.

8. The closing device as claimed in claim 6, wherein the first closing part has an additional engaging projection to the first engaging device and the second closing part has an additional engaging projection to the second engaging device, wherein the additional engaging projection to the first engaging device is offset along the engaging direction with respect to the first engaging projections and the additional engaging projection to the second engaging device is offset along the engaging direction with respect to the second engaging projections.

9. A closing device for releasably connecting two parts, comprising a first closing part comprising a first engaging projection, a second closing part comprising a second engaging projection, wherein the first closing part and the second closing part can be attached to each other in order to close the closing device and, in a closed position, are interconnected mechanically by the first engaging projection and the second engaging projection being in engagement with each other in a positive locking manner in the closed position, and a magnetic device which acts between the first closing part and the second closing part and is designed to assist the attaching of the first closing part and the second closing part to each other by providing a magnetic attraction force, wherein the first closing part has at least one first electrical contact element and the second closing part has at least one second electrical contact element, wherein, in the closed position, the at least one first electrical contact element and the at least one second electrical contact element are operatively connected to one another in an electrically contacting manner, wherein at least one of the electrical contact elements has a contact spring which is elastically deformable when the closing parts are attached to each other, and when the closing parts are attached to each other and/or when the closing parts are released from each other, the at least one first electrical contact element and the at least one second electrical contact element slide tangentially on one another by means of surfaces.

10. A closing device for releasably connecting two parts, comprising a first closing part comprising two engaging projections forming a first engaging device, a second closing part comprising two second engaging projections forming a second engaging device, wherein the first closing part and the second closing part can be attached to each other in order to close the closing device by bringing the first engaging projections and the second engaging projections, in an engaging direction, into engagement with each other in a positive locking manner such that, in a closed position in which the first engaging projections and the second engaging projections are in engagement with each other in a positive locking manner, the first closing part and the second closing part are mechanically connected to each other, and a magnetic device which acts between the first closing part and the second closing part and is designed to assist the attaching of the first closing part and the second closing part to each other by providing a magnetic attraction force, wherein the first closing part has an additional engaging projection to the first engaging device and the second closing part has an additional engaging projection to the second engaging device, wherein the additional engaging projection to the first engaging device is offset along the engaging direction with respect to the first engaging device and the additional engaging projection to the second engaging device is offset along the engaging direction with respect to the second engaging device, wherein the first engaging projections extend at an angle to one another forming the first engaging device and the second engaging projections extend at an angle to one another forming the second engaging device, and wherein the additional engaging projection to the first engaging device and the additional engaging projection to the second engaging device each extend transversely with respect to the engaging direction.

11. The closing device as claimed in claim 10, wherein the first engaging projections and the second engaging projections are each extended obliquely with respect to an engaging direction in which the engaging devices can be brought into engagement with each other.

12. The closing device as claimed in claim 10, wherein the first closing part has at least one first electrical contact element and the second closing part has at least one second electrical contact element, wherein, in the closed position, the at least one first electrical contact element and the at least one second electrical contact element are operatively connected to one another in an electrically contacting manner.

13. The closing device as claimed in claim 10, wherein the first closing part and the second closing part each have at least one magnetic element which together realize the magnetic device and interact in a magnetically attracting manner during the closing of the closing device.

14. The closing device as claimed in claim 10, wherein at least one of the closing parts has a guide element which, when the closing parts are attached, engages in a guide opening in the other of the closing parts in order to guide the attaching movement of the closing parts to each other, and the first closing part and/or the second closing part have/has a base body which is composed of two partial bodies of different materials.

15. The closing device as claimed in claim 10, further comprising a blocking element which is arranged on one of the closing parts and, when the closing parts are attached to each other, is deflectable out of a basic position on the associated closing part in such a manner that the first engaging projections and the second engaging projections can be brought into engagement with each other in order to close the closing device.

16. The closing device as claimed in claim 15, wherein the blocking element is designed to move back into its basic position during or after production of the engagement in order, in the closed position, to block the positive locking engagement of the first engaging projections and the second engaging projections with each other.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The concept on which the solution is based will be explained in more detail below with reference to the embodiments which are illustrated in the figures.

(2) FIG. 1 shows a view of a closing device with two closing parts;

(3) FIG. 2A shows a top view of the closing device, before the closing;

(4) FIG. 2B shows a sectional view along the line B-B according to FIG. 2A;

(5) FIG. 2C shows a side view of the closing device;

(6) FIG. 3A shows a top view of the closing device during the closing;

(7) FIG. 3B shows a sectional view along the line C-C according to FIG. 3A;

(8) FIG. 3C shows a sectional view along the line B-B according to FIG. 3A;

(9) FIG. 3D shows a side view of the closing device;

(10) FIG. 4A shows a top view of the closing device during the further closing;

(11) FIG. 4B shows a sectional view along the line C-C according to FIG. 4A;

(12) FIG. 4C shows a sectional view along the line B-B according to FIG. 4A;

(13) FIG. 4D shows a side view of the closing device;

(14) FIG. 5A shows a top view of the closing device during the further closing;

(15) FIG. 5B shows a sectional view along the line C-C according to FIG. 5A;

(16) FIG. 5C shows a sectional view along the line B-B according to FIG. 5A;

(17) FIG. 5D shows a side view of the closing device;

(18) FIG. 6A shows a top view of the closing device in a closed position;

(19) FIG. 6B shows a sectional view along the line C-C according to FIG. 6A;

(20) FIG. 6C shows a sectional view along the line B-B according to FIG. 6A;

(21) FIG. 6D shows a side view of the closing device;

(22) FIG. 7A shows a top view of the closing device when the closing parts are attached obliquely to each other, before the closing;

(23) FIG. 7B shows a sectional view along the line C-C according to FIG. 7A;

(24) FIG. 7C shows a sectional view along the line B-B according to FIG. 7A;

(25) FIG. 7D shows a side view of the closing device;

(26) FIG. 8A shows a top view of the closing device during the closing;

(27) FIG. 8B shows a sectional view along the line C-C according to FIG. 8A;

(28) FIG. 8C shows a sectional view along the line B-B according to FIG. 8A;

(29) FIG. 8D shows a side view of the closing device;

(30) FIG. 9A shows a top view of the closing device during the further closing;

(31) FIG. 9B shows a sectional view along the line C-C according to FIG. 9A;

(32) FIG. 9C shows a sectional view along the line B-B according to FIG. 9A;

(33) FIG. 9D shows a side view of the closing device;

(34) FIG. 10A shows a top view of the closing device during the further closing;

(35) FIG. 10B shows a sectional view along the line C-C according to FIG. 10A;

(36) FIG. 10C shows a sectional view along the line B-B according to FIG. 10A;

(37) FIG. 10D shows a side view of the closing device;

(38) FIG. 11A shows a top view of the closing device during the further closing;

(39) FIG. 11B shows a sectional view along the line C-C according to FIG. 11A;

(40) FIG. 11C shows a sectional view along the line B-B according to FIG. 11A;

(41) FIG. 11D shows a side view of the closing device;

(42) FIG. 12A shows a top view of the closing device in the closed position;

(43) FIG. 12B shows a sectional view along the line C-C according to FIG. 12A;

(44) FIG. 12C shows a sectional view along the line B-B according to FIG. 12A;

(45) FIG. 12D shows a side view of the closing device;

(46) FIG. 13A shows a top view of the closing device, when the closing parts are attached obliquely to each other, before the closing;

(47) FIG. 13B shows a sectional view along the line C-C according to FIG. 13A;

(48) FIG. 13C shows a sectional view along the line B-B according to FIG. 13A;

(49) FIG. 13D shows a side view of the closing device;

(50) FIG. 14A shows a top view of the closing device during the further closing;

(51) FIG. 14B shows a sectional view along the line C-C according to FIG. 14A;

(52) FIG. 14C shows a sectional view along the line B-B according to FIG. 14A;

(53) FIG. 14D shows a side view of the closing device;

(54) FIG. 15A shows a top view of the closing device during the further closing;

(55) FIG. 15B shows a sectional view along the line C-C according to FIG. 15A;

(56) FIG. 15C shows a sectional view along the line B-B according to FIG. 15A;

(57) FIG. 15D shows a side view of the closing device;

(58) FIG. 16A shows a top view of the closing device during the further closing;

(59) FIG. 16B shows a sectional view along the line C-C according to FIG. 16A;

(60) FIG. 16C shows a sectional view along the line B-B according to FIG. 16A;

(61) FIG. 16D shows a side view of the closing device;

(62) FIG. 17A shows a top view of the closing device in the closed position;

(63) FIG. 17B shows a sectional view along the line C-C according to FIG. 17A;

(64) FIG. 17C shows a sectional view along the line B, B according to FIG. 17A;

(65) FIG. 17D shows a side view of the closing device;

(66) FIG. 18A shows a view of an embodiment of a closing device on a holder for a bicycle;

(67) FIG. 18B shows a top view of the holder;

(68) FIG. 18C shows a sectional view along the line A-A according to FIG. 18B;

(69) FIG. 19A shows a view of the closing device on the holder, during the opening;

(70) FIG. 19B shows a top view of the holder;

(71) FIG. 19C shows a sectional view along the line A-A according to FIG. 19B;

(72) FIG. 20A shows a view of the closing device on the holder, during the further opening;

(73) FIG. 20B shows a top view of the holder;

(74) FIG. 20C shows a sectional view along the line A-A according to FIG. 20B;

(75) FIG. 21A shows a view of the closing device in an open position on the holder;

(76) FIG. 21B shows a top view of the holder;

(77) FIG. 21C shows a sectional view along the line A-A according to FIG. 21B;

(78) FIG. 22A shows a top view of the closing device of the embodiment according to FIGS. 18A-18C to 21A-21C, during the closing of the closing device;

(79) FIG. 22B shows a side view of the closing device;

(80) FIG. 22C shows a sectional view along the line A-A according to FIG. 22A;

(81) FIG. 22D shows an enlarged view of the detail B according to FIG. 22C;

(82) FIG. 23A shows a top view of the closing device, during the further closing;

(83) FIG. 23B shows a side view of the closing device;

(84) FIG. 23C shows a sectional view along the line A-A according to FIG. 23A;

(85) FIG. 23D shows an enlarged view of the detail B according to FIG. 23C;

(86) FIG. 24A shows a top view of the closing device during the further closing;

(87) FIG. 24B shows a side view of the closing device;

(88) FIG. 24C shows a sectional view along the line A-A according to FIG. 24A;

(89) FIG. 24D shows an enlarged view of the detail B according to FIG. 24C;

(90) FIG. 25A shows a top view of the closing device during the further closing;

(91) FIG. 25B shows a side view of the closing device;

(92) FIG. 25C shows a sectional view along the line A-A according to FIG. 25A;

(93) FIG. 25D shows an enlarged view of the detail B according to FIG. 25C;

(94) FIG. 26A shows a top view of the closing device during the further closing;

(95) FIG. 26B shows a side view of the closing device;

(96) FIG. 26C shows a sectional view along the line A-A according to FIG. 26A;

(97) FIG. 26D shows an enlarged view of the detail B according to FIG. 26C;

(98) FIG. 27A shows a top view of the closing device in the closed position;

(99) FIG. 27B shows a side view of the closing device;

(100) FIG. 27C shows a sectional view along the line A-A according to FIG. 27A;

(101) FIG. 27D shows an enlarged view of the detail B according to FIG. 27C;

(102) FIG. 28A shows a view of a bicycle with a closing device arranged thereon for attaching a rear light, with the closing device open;

(103) FIG. 28B shows an enlarged view of the detail A according to FIG. 28A;

(104) FIG. 28C shows a view of the bicycle from the rear;

(105) FIG. 28D shows an enlarged sectional view along the line D-D according to FIG. 28C;

(106) FIG. 29A shows a view of the bicycle, during the closing of the closing device;

(107) FIG. 29B shows an enlarged view of the detail A according to FIG. 29A, during the closing of the closing device;

(108) FIG. 29C shows a view of the bicycle from the rear;

(109) FIG. 29D shows a sectional view along the line D-D according to FIG. 29C;

(110) FIG. 30A shows a view of the bicycle, during the further closing of the closing device;

(111) FIG. 30B shows an enlarged view of the detail A according to FIG. 30A;

(112) FIG. 30C shows a view of the bicycle from the rear;

(113) FIG. 30D shows a sectional view along the line D-D according to FIG. 30C;

(114) FIG. 31A shows an exploded view of the closing device according to FIG. 1;

(115) FIG. 31B shows another exploded view of the closing device;

(116) FIG. 32A shows a view of the closing device, with separated partial bodies of the closing parts;

(117) FIG. 32B shows another view of the closing device, with separated partial bodies of the closing parts;

(118) FIG. 33A shows a view of the closing device before the closing;

(119) FIG. 33B shows another view of the closing device before the closing;

(120) FIG. 34A shows a view of the closing device in the closed position; and

(121) FIG. 34B shows another view of the closing device in the closed position.

DESCRIPTION OF THE INVENTION

(122) FIG. 1 to 17A-17D and FIGS. 31A, 31B to 34A, 34B show an embodiment of a closing device 1 which has two closing parts 2, 3 and serves for releasably connecting two parts to each other.

(123) As is apparent from the exploded views according to FIGS. 31A and 31B, each closing part 2, 3 has a basic body 20, 30 which is assembled from two partial bodies 200, 201, 300, 301 which can be manufactured from different materials. For example, the partial bodies 200, 201, 300, 301 can be manufactured from different plastics materials or, on the one hand, from a plastics material and, on the other hand, from a metal material.

(124) An engaging device 22, 32 which is in each case formed on the inner partial body 201, 301 and is formed by two engaging projections 220, 221, 320, 321 which are arranged at an angle to one another and form a V shape (see FIG. 1) is arranged on each of the basic bodies 20, 30.

(125) While the engaging device 22 of the one closing part 2 is in the form of a depression, the engaging device 32 of the other closing part 3 is in the form of a raised section which can be inserted into the depression of the other engaging device 22. In order to close the closing device 1, the engaging devices 22, 32 can be attached to each other such that, in a closed position, the engaging projections 220, 221, 320, 321 are in engagement with one another in a positive locking manner and are used to mechanically interconnect the closing parts 2, 3.

(126) In the embodiment illustrated, the engaging projections 220, 221, 320, 321 are formed as rigid sections on the inner partial bodies 201, 301 of the basic bodies 20, 30 of the closing parts 2, 3. A further, additional engaging projection 23, 33 is arranged offset with respect to the engaging devices 22, 32 on each closing part 2, 3 (as viewed along an engaging direction Y, along which the engaging devices 22, 32 can be brought into engagement with each other in a positive locking manner), said engaging projection 23, 33 being formed on the outer partial body 200, 300 of the associated basic body 20, 30 and being extended rectilinearly and transversely with respect to the engaging direction Y. The engaging projections 220, 221, 320, 321 of the engaging devices 22, 32 and the additional engaging projections 23, 33 are designed as undercuts and are in engagement with one another in pairs when, in a closed position of the closing device 1, the closing parts 2, 3 are attached to each other, and therefore the closing parts 2, 3 are mechanically held on each other counter to a closing direction X.

(127) A pair of magnetic elements 250, 251, 350, 351 which face one another with unlike magnetic poles and therefore bring about a magnetic attraction force between the closing parts 2, 3 is arranged on each basic body 20, 30. The magnetic elements 250, 251, 350, 351 magnetically assist the attaching of the closing parts 2, 3 such that the connection between the closing parts 2, 3 is at least very substantially produced automatically.

(128) In addition, a blocking element 36 in the form of a lever element which is pivotable about a pivot axis 361 (see, for example, FIG. 4C) is arranged on the closing part 3, said blocking element being deflectable out of a basic position and serving to secure the closing parts 2, 3 in their closed position with respect to each other, and therefore the engagement between the engaging projections 220, 221, 320, 321, 23, 33 is secured and cannot be readily released, at any rate not without canceling the blocking by the blocking element 36. In the closed position, the blocking element 36 engages in a blocking opening 26 on the other closing part 2, and therefore the closing parts 2, 3 are thereby secured with respect to each other counter to the engaging direction Y.

(129) An electrical contact element 24, 34 which serves for producing an electrical contact connection between the closing parts 2, 3 in the closed position of the closing device 1 is arranged in each case on a side of the inner partial body 201, 301 that faces the other closing part 2, 3 in each case. In the closed position, the contact elements 24, 34 are in contact with each other in an electrically contacting manner such that a current can flow via the contact elements 24, 34.

(130) FIGS. 2A-2C to FIGS. 6A-6D show the closing device 1 during the closing, i.e. during the attaching of the closing parts 2, 3 to each other in order to close the closing device 1.

(131) In order to close the closing device 1, the closing parts 2, 3 can be attached to each other in a closing direction X. During the attachment, the magnetic elements 250, 251, 350, 351 of the closing parts 2, 3 interact in a magnetically attracting manner such that the closing parts 2, 3 as they approach are drawn magnetically toward each other.

(132) If the attachment, as shown in the sequence from FIGS. 2A-2C to FIGS. 6A-6D, takes place plane-parallel, the engaging projections 220, 221, 320, 321, 23, 33 enter into contact with one another and run onto one another, as is illustrated in the transition from FIG. 3C to FIG. 4C, because of run-on slopes which are formed on the engaging projections 220, 221, 320, 321, 23, 33. By the engaging projections 220, 221, 320, 321, 23, 33 running onto one another, the engaging projections 220, 221, 320, 321, 23, 33 move past one another and enter into engagement with one another in the engaging direction Y in a positive locking manner, as is illustrated in the transition from FIG. 5C to FIG. 6C.

(133) The magnetic elements 250, 251, 350, 351 are arranged on the basic bodies 20, 30 of the closing parts 2, 3 in such a manner that, in the closed position, the magnetic elements 250, 251, 350, 351 are offset with respect to one another and, during the closing and also in the closed position, bring about a magnetic attraction force (even) in the direction of the closed position, i.e. in the direction of engagement of the engaging projections 220, 221, 320, 321, 23, 33 with one another. It is thus apparent from FIG. 6B that, in the closed position, the magnetic elements 250, 251, 350, 351 are (slightly) offset with respect to one another along the engaging direction Y in such a manner that the magnetic attraction between the magnetic elements 250, 251, 350, 351 also acts at least with a direction component in the engaging direction Y and therefore the closing parts 2, 3 are drawn into engagement with each other in the engaging direction Y. When the closing parts 2, 3 are attached to each other, the positive locking engagement between the closing parts 2, 3 is therefore produced, preferably automatically, in a magnetically assisted manner.

(134) When the closing parts 2, 3 are attached to each other, the blocking element 36, which is arranged pivotably on the closing part 3, is deflected out of its basic position, as is apparent from FIGS. 4C and 5C, because of an interaction of the closing part 2 with the blocking element 36. The blocking element 36 is deflected out of the basic position here counter to a prestressing effect of a spring element 37, as is apparent from FIG. 4B, and therefore a spring-mechanical stress acts on the blocking element 36 in the direction of the basic position. Accordingly, when the closed position of the closing parts 2, 3 is reached, the blocking element 36 is set back into the basic position and enters into engagement with the blocking opening 26 on the closing part 2, as is apparent from FIG. 6C.

(135) By the engagement of the blocking element 36 in the blocking opening 26, the position of the closing parts 2, 3 with respect to each other along the engaging direction Y is secured. Owing to the engagement of the blocking element 36 in the blocking opening 26, in particular the engaging projections 220, 221, 320, 321, 23, 33 cannot be disengaged counter to the engaging direction Y, and therefore the positive lock between the closing parts 2, 3 is secured.

(136) The blocking element 36 is arranged on the closing parts 3 in the immediate vicinity of the engaging device 32, and therefore the positive lock between the closing parts 2, 3 is secured where the positive-locking engagement exists. This improves the mechanical holding of the closing parts 2, 3 on each other.

(137) As is apparent from the sequence from FIG. 4C to FIG. 6C, the contact elements 24, 34 slide over each other when the closing parts 2, 3 are brought into engagement with each other in the engaging direction Y. The contact elements 24, 34 thereby rub over one another, which can have the effect that the contact elements 24, 34 are freed from possible dirt or a possibly present oxide layer, and therefore reliable production of an electrical contact connection is promoted.

(138) In the closed position, the contact elements 24, 34 are in contact with each other in an electrically contacting manner, as is apparent from FIG. 6C, and therefore a current can flow between the closing parts 2, 3.

(139) FIGS. 7A-7D to 12A-12D and FIGS. 13A-13D to 17A-17D show the closing of the closing device 1 when the closing parts 2, 3 are attached obliquely to each other (wherein the direction of inclination of the closing part 3 in relation to the closing part 2 is reversed with respect to each other in the sequences of the figures).

(140) If the closing part 3 is attached obliquely, as in FIGS. 7A-7D and 8A-8D, to the closing part 2, the engaging projections 23, 33 thus first of all enter into contact with each other and into engagement, as is apparent from FIG. 9C. By tilting of the closing part 3 in relation to the closing part 2, the engaging projections 220, 221, 320, 321 then also enter into contact and into engagement with one another, assisted by the magnetic interaction between the magnetic elements 250, 251, 350, 351, and therefore, in the closed position (FIGS. 12A-12D), the closing parts 2, 3 are in turn in engagement with each other in a positive locking manner.

(141) During the oblique attachment, as in FIGS. 13A-13D and 14A-14D, first of all the engaging projections 220, 221, 320, 321 enter into contact with one another and, by tilting (FIG. 15C), the engaging projections 23, 33 are also moved toward each other and enter into engagement with each other, as is illustrated in FIGS. 16C and 17C.

(142) The advantageous combination of the engaging projections 220, 221, 320, 321, which are arranged at an angle, of the blocking element 36 arranged in the vicinity of said engaging projections and of the rectilinear engaging projections 23, 33 has the effect that there is no erroneous position, that is to say that not through oversight does only one group of engaging projections engage and latch the blocking element in place. The engaging projections 220, 221, 320, 321 arranged at an angle can also be formed by functionally identical curved engaging projections.

(143) Even when the closing parts 2, 3 are attached obliquely to each other, the contact elements 24, 34 in each case slide over each other when the engaging projections 220, 221, 320, 321, 23, 33 enter into engagement with one another and before the closed position is produced, as is apparent from FIGS. 11C and 16C. The connection of the closing parts 2, 3 is therefore produced in turn by rubbing of the contact elements 24, 34 over each other.

(144) If the closure 1 is intended to be opened, the blocking element 36 can be moved out of its engagement with the blocking opening 26 via an actuating handle 360, and therefore the blocking between the closing parts 2, 3 is canceled and the closing parts 2, 3 can be released counter to the engaging direction Y from their positive locking engagement. By pushing the closing parts 2, 3 away from each other counter to the engaging direction Y (in an opening direction Z, see FIG. 2C), the closing parts 2, 3 can therefore be separated from each other in order to release the assemblies assigned to the closing parts 2, 3.

(145) When the closing parts 2, 3 are attached to each other, a guide element 31 on the closing part 3 also enters into engagement with a guide opening 21 on the other closing part 2. This provides a linear guide of the closing parts 2, 3 on each other along the engaging direction Y such that, when the closing parts 2, 3 are attached to each other, the closing parts 2, 3 are guided with respect to each other along the engaging direction Y and are therefore secured with respect to each other in particular transversely with respect to the engaging direction Y.

(146) Below the engaging projection 23, an engaging element 230 is formed on the closing part 2, as is apparent, for example, from FIG. 31A and FIG. 33B. The engaging element 230 is assigned an engaging opening 330 on the engaging projection 33 of the other closing part 3 (see FIG. 33B), and therefore, in the closed position of the closing device 1, illustrated in FIGS. 34A and 34B, the closing parts 2, 3 are additionally secured with respect to each other transversely with respect to the engaging direction Y via the engagement of the engaging element 230 in the engaging opening 330.

(147) A closing device 1 of the described type can serve for connecting entirely random assemblies to one another. In the closed position of the closing device 1, the assemblies are mechanically fixedly interconnected, with a simultaneous electrical contact connection of the closing parts 2, 3 to each other, such that, for example, energy can be supplied/transmitted between the assemblies.

(148) In an embodiment illustrated in FIGS. 18A-18C to 27A-27D, the closing device 1 serves for attaching a bicycle light to a bicycle and is accordingly assigned to a holder 4 which can connect, for example, a handlebar of a bicycle to a front wheel fork via fastening openings 40, 41.

(149) In the embodiment illustrated, the closing part 2 is attached to the holder 4 while the other closing part 3 is assigned to the bicycle light. By the closing parts 2, 3 being attached to each other, the bicycle light can be attached to the holder 4 and therefore to the bicycle, with a simultaneous electrical contact connection, for example for the purpose of supplying electricity to the bicycle light.

(150) If the bicycle light is intended to be released from the holder 4, the actuating handle 360 can be actuated in order thereby to cancel the position between the closing parts 2, 3 such that the bicycle light, as is illustrated in FIGS. 21A-21D, can be released from the holder 4.

(151) In the embodiment according to FIGS. 18A-18C to 27A-27D, the closing parts 2, 3 do not have any further additional engaging projections 23, 33. Otherwise, this embodiment is functionally identical to the previously described embodiment, and therefore reference should be made to what has been stated above.

(152) The sequence of FIGS. 22D to 27D illustrates, in enlarged sectional views, how, during the closing of the closing device 1, the electrical contact elements 24, 34 slide over each other in a rubbing manner in order to come into contact electrically with each other in the closed position (FIG. 27D). This applies identically for the exemplary embodiment according to FIGS. 18A-18C to 27A-27D as for the embodiment described above.

(153) If the closing parts 2, 3 are attached to each other in the closing direction X, first of all the engaging projections of the engaging devices 22, 32 run onto each other, as is apparent from the sequence of FIG. 22D to FIG. 24D. As a result, the engaging projections of the engaging devices 22, 32 move past one another, with a slight offset of the closing parts 2, 3 relative to each other counter to the engaging direction Y.

(154) As the closing parts 2, 3 approach each other in the closing direction X, the contact element 24 of the closing part 2 acts on a contact spring 340, which protrudes from the contact element 34, and stresses said contact spring, as is apparent in the transition from FIG. 24D to FIG. 25D. If the closing parts 2, 3 now move in the engaging direction Y into positive locking engagement with each other, the contact elements 24, 34 slide over each other in a rubbing manner, in particular with mechanically stressed contact of the contact spring 340 against a surface 240 of the contact element 24.

(155) By rubbing of the contact elements 24, 34 against each other, dirt can be eliminated and an oxide layer which could have formed on the contact elements 24, 34 may be scrapped off, and therefore, in the closed position (FIG. 27D), there is a reliable electrical contact connection between the contact elements 24, 34.

(156) The closing device 1 can also serve for connecting other assemblies of a bicycle, for example also for connecting a rear light 6 to a bicycle frame 50 of a bicycle 5, as is illustrated in FIGS. 28A-28D to 30A-30D. The closing device 1 serves in turn for producing a mechanical holding of the rear light 6 on the bicycle frame 50 and also for the electrical contact connection.

(157) For the functional configuration and for the manner of operation during the closing and opening of the closing device 1, for the embodiments according to FIGS. 18A-18C to 27A-27D and FIGS. 28A-28D to 30A-30D reference should be made in full to the explanations regarding the exemplary embodiment described first.

(158) The concept on which the solution is based is not restricted to the embodiments described above, but can basically also be realized in entirely different embodiments.

(159) A closing device can be formed in particular also without electrical contacts and can therefore serve for the purely mechanical-magnetic interconnection of two assemblies.

(160) A closing device—with or without electrical contact elements—can be used for connecting assemblies to a bicycle, but can also serve for interconnecting any other assemblies.

LIST OF REFERENCE SIGNS

(161) 1 Closing device 2 Closing part 20 Basic body 200, 201 Partial body 21 Guide opening 22 Engaging device 220, 221 Engaging projection 222 Run-on slope 23 Engaging device 230 Engaging element 24 Electrical contact 240 Surface 25 Magnetic device 250, 251 Magnetic element 26 Blocking opening 3 Closing part 30 Basic body 300, 301 Component 31 Guide element 310 Opening 32 Engaging device 320, 321 Engaging projection 322 Run-on slope 33 Engaging device 330 Engaging opening 34 Electrical contact 340 Spring element 35 Magnetic device 350, 351 Magnetic elements 36 Blocking element 360 Actuating handle 361 Pivot axis 37 Spring element 4 Holder 40, 41 Fastening opening 5 Bicycle 50 Bicycle frame 6 Light X Closing direction Y Engaging direction Z Opening direction