Closure device
09555935 ยท 2017-01-31
Assignee
Inventors
Cpc classification
E05B65/52
FIXED CONSTRUCTIONS
H01F7/0263
ELECTRICITY
E05B83/38
FIXED CONSTRUCTIONS
A44B11/258
HUMAN NECESSITIES
E05B2063/0026
FIXED CONSTRUCTIONS
International classification
F16B21/00
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
E05B47/00
FIXED CONSTRUCTIONS
E05B65/52
FIXED CONSTRUCTIONS
Abstract
A closure device for connecting two parts is provided. The closure device includes a connector, a housing which includes a connector receptacle, into which the connector can be inserted in a closing direction for closing the closure device, a slide shiftably arranged at the housing, which for opening the closure device is shiftable along an opening direction different from the closing direction, a detent spring element which in a closed position of the closure device latchingly holds the connector at the housing and for opening the closure device can be moved out of engagement with the connector by shifting the slide in the opening direction, in order to release the connector from the housing, so that in an open position of the closure device the connector is separated from the housing, and at least one guide element which guides the connector on insertion into the connector receptacle for closing the closure device along the closing direction into the closed position and supports the connector against tilting relative to the closing direction when the slide is shifted for opening the closure device.
Claims
1. A closure device for connecting two parts, comprising: a connector, a housing which comprises a connector receptacle, into which the connector is insertable in a closing direction for closing the closure device, a slide shiftably arranged at the housing, which for opening the closure device is shiftable along an opening direction different from the closing direction, a detent spring element which in a closed position of the closure device latchingly holds the connector at the housing and for opening the closure device can be moved out of engagement with the connector by shifting the slide in the opening direction, in order to release the connector from the housing, so that in an open position of the closure device the connector is separated from the housing, and at least one guide element which guides the connector on insertion into the connector receptacle for closing the closure device along the closing direction into the closed position and supports the connector against tilting relative to the closing direction when the slide is shifted for opening the closure device, wherein the connector and the slide each comprise at least one magnet, and wherein in the closed position the at least one magnet of the connector and the at least one magnet of the slide oppose each other in a magnetically attracting manner and on opening are shifted with respect to each other along the opening direction such that a force of magnetic repulsion is exerted on the connector relative to the housing against the closing direction, wherein the detent spring element is formed by a ring which is arranged on the slide and comprises a circumferential opening circumferentially interrupting a perimeter of the ring, and wherein the connector comprises a pin insertable into the connector receptacle, the detent spring element circumferentially enclosing and elastically receiving the pin within an inner bore in the closed position of the closure device such that the detent spring element is in positive locking engagement with the pin, wherein, by shifting the slide in the opening direction, the detent spring element is moved with respect to the pin such that the pin passes through said opening of the detent spring element for releasing the positive locking engagement between the detent spring element and the pin.
2. The closure device according to claim 1, wherein the at least one guide element is arranged at the connector receptacle.
3. The closure device according to claim 1, wherein the connector receptacle is formed by a recess at the housing.
4. The closure device according to claim 1, wherein the at least one guide element is formed by a surface portion at the connector receptacle of the housing, which extends along the closing direction and in the closed position fully is in contact with the connector.
5. The closure device according to claim 1, wherein the at least one guide element is arranged at the housing such that the guide element supports the connector relative to the housing when a load acts on the connector in the opening direction.
6. The closure device according to claim 1, wherein at the pin a first latching portion is arranged, which in the closed position latchingly is in engagement with a second latching portion at the housing or the slide.
7. The closure device according to claim 6, wherein in the closed position the pin rests against the at least one guide element.
8. The closure device according to claim 6, wherein the first latching portion is arranged at the pin circumferentially around the closing direction.
9. The closure device according to claim 1, wherein the detent spring element is spring-elastic in a direction transverse to the closing direction such that on closing of the closure device the detent spring element can be spread in the direction transverse to the closing direction.
10. The closure device according to claim 9, wherein by shifting the slide in the opening direction, the detent spring element is brought out of engagement with the pin of the connector.
11. The closure device according to claim 9, wherein when shifting the slide in the opening direction, the detent spring element is shifted together with the slide.
12. The closure device according to claim 1, wherein the detent spring element is formed integrally with the slide.
13. The closure device according to claim 1, wherein in the closed position the connector is rotationally movably held at the housing around the closing direction.
14. The closure device according to claim 1, wherein in the direction of a position in which the connector is mechanically connectable with the housing for closing the closure device, the slide is mechanically, pneumatically or magnetically biased with respect to the housing.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) The idea underlying the invention will be explained in detail below with reference to the exemplary embodiments illustrated in the Figures, in which:
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(17) The closure device 1 serves for connecting two parts, for example as closure for a bag, a backpack or another flap, as connecting device for connecting two belts or cables or for connecting two other parts. One part here is attached to the connector 2, while the other part is connected with the housing 3. In a closed position, shown in
(18) In the closure device 1 the connector 2 includes a body 20 with a fastening device 23 for connecting a part (the fastening device 23 for example can be designed as thread onto which a fastening part can be screwed for clampingly connecting a component, for example a lid, a flap or the like) and a pin 21 with a latching portion 210. With the pin 21, the connector 2 can be inserted into a connector receptacle 30 at the housing 3, so that in the closed position the connector 2 engages into the connector receptacle 30 with the pin 21 and with the latching portion 210 of the pin 21 positively is in engagement with latching portions 410 of a spring locking element 41 at the slide 4.
(19) The pin 21 of the connector 2 has a shape rotationally symmetrical around a closing direction X with a circumferential latching portion 210 (see
(20) The spring locking element 41 is arranged at a raised, protruding holding element 42 of the slide 4 such that the spring locking element 41 is fixed at the slide 4 along an opening direction Y, along which the slide is shiftably mounted at the housing 3, but can be spread in an elastically resilient manner transversely to the closing direction X and opening direction Y. For this purpose, the spring locking element 4 is formed substantially ring-shaped and circumferentially includes an opening 411 (see
(21) The substantially ring-shaped spring locking element 41 is formed as separate component and arranged at the slide 4. It is, however, also conceivable to design the spring locking element 41 integrally with the slide 4.
(22) The slide 4 is shiftably arranged at the housing 3 along an opening direction Y and for this purpose guided on a sliding guideway 31 of the housing 3.
(23) For closing (see
(24) In this connection it should be noted that the slide 4 is guided at the housing 3 along the opening direction Y, but is fixed relative to the housing 3 along the closing direction X, so that by the engagement of the pin 21 with the detent spring element 41 the connector 2 is held at the housing 3 via the slide 4 against the closing direction X.
(25) For opening (see
(26) In an open position (see
(27) A cycle is obtained in use of the closure device 1, which can be summarized as follows.
(28) Before closing, the closure device 1 initially is in a position in which the connector 2 and the housing 3 are separated from each other and the slide 4 is in a starting position in which the detent spring element 41 is arranged concentrically to the connector receptacle 30 of the housing, so that the pin 21 of the connector 2 can latchingly be brought in engagement with the detent spring element 41.
(29) For closing, the connector 2 now is attached to the connector receptacle 30 in the closing direction X, so that the pin 21 with the circumferential latching portion 210 runs up onto the latching portions 410 of the detent spring element 41 and presses the same apart such that the detent spring 41 is spread transversely to the closing direction X and transversely to the opening direction Y, until the pin 21 snaps into engagement with the detent spring element 41.
(30) When attaching the connector 2 to the housing 3, i.e., when bringing the pin 21 in engagement with the detent spring element 41, the slide is stationary to the housing 3 and does not move along the opening direction Y. Merely the detent spring element 41 is spread apart, so as to establish the latching connection of the connector 2 with the housing 3.
(31) In the closed position, shown in
(32) For opening, the slide 4 is pushed into the housing 3 in the opening direction Y, so that the detent spring element 41 gets out of engagement with the pin 21, in that the pin 21 is moved through the circumferential opening 411 at the detent spring element 41. With inserted slide 4, as shown in
(33) This results in an asymmetry between the closing operation and the opening operation of the closure device 1 due to the fact that for closing the slide 4 is not moved, but instead the detent spring element 41 is spread by the pin 21 with its latching portion 210 running up onto the latching portions 410 of the detent spring element 41. On opening, however, the slide 4 is moved in the opening direction Y, so as to shift the latching portion 210 tangentially out of engagement with the latching portions 410 at the detent spring element 41, wherein definitely no or only a slight spreading of the detent spring element 41 occurs, but in any case no running up of the latching portion 210 onto the latching portions 410 along the closing direction X.
(34) The closure device 1 can be designed as a purely mechanical closure device 1. In this case, the connector 2 must be pressed into the connector receptacle 30 in the closing direction X for closing the closure device 1, in order to lockingly bring the pin 21 in engagement with the detent spring element 41. Opening then likewise is effected purely mechanically by shifting the slide 4 in the opening direction Y, wherein in addition a resetting mechanical spring element 35 is provided, which biases the slide 4 in direction of the starting position shown in
(35) In an advantageous embodiment, the connector 2, the housing 3 and/or the slide 4 include magnetic means 22, 32, 34, which can be designed for supporting the closing and opening movement. In principle, the magnetic means 22, 32, 34 can be formed as magnets or on the one hand as magnets and on the other hand as magnetic armatures fabricated of a ferromagnetic material, wherein each magnetic means 22, 32, 34 can consist of one or more elements.
(36) In an advantageous embodiment, a magnet 22 is arranged at the connector 2, which in the closed position of the closure device 1 is opposed to a magnet or a magnetic armature 32 in the region of the detent spring element 41 at the slide 4, wherein the magnet 22 at the connector 2 and the magnet or the magnetic armature 32 at the slide 4 effect a force of magnetic attraction which magnetically supports the closing movement of the connector 2 in the closing direction X for mechanically bringing the pin 21 in engagement with the detent spring element 41. The magnetic forces of the magnet 22 on the one hand and of the magnet or the magnetic armature 32 on the other hand can be dimensioned such that the closing operation on approach of the connector 2 to the connector receptacle 30 is effected largely automatically, in that in particular the pin 21 with its latching portion 210 largely automatically is pulled in engagement with the latching portions 410 of the detent spring element 41 by spreading the detent spring element 41.
(37) In the embodiment shown in
(38) In the illustrated exemplary embodiment, however, an ejection effect also occurs without using the magnet 34, which in so far only is optional. When the magnets 22 and 32 are shifted relative to each other along the opening direction Y and the pole surfaces of the magnets 22, 32 facing each other are held plane-parallel to each other, the following course of force is obtained: In opposed position (closed position), the vertical component of the force of attraction (directed along the closing direction X) is at a maximum, the magnets 22, 32 are centered one above the other. No magnetic forces are acting laterally in the plane vertical to the closing direction X. When the magnet 32 is shifted laterally in the opening direction Y relative to the magnet 22, the vertical component of the force of magnetic attraction decreases, namely approximately up to the point at which the magnets 22, 32 only have a small overlap or just no more overlap. At the same time, an increasing moment acts with increasing displacement, which attempts to rotate the magnets 22, 32 with their pole surfaces towards each other. However, this is prevented by guide elements 301, 302 (which will be explained in detail below). Upon exceedance of this point (approximately after shifting the magnets 22, 32 relative to each other along the opening direction Y by a distance corresponding to the diameter of the magnets 22, 32), when the magnets 22, 32 are held plane-parallel to each other, an ejection force acts on the magnet 22 and hence on the connector 2 against the closing direction X. This force initially increases in a very narrow shifting range during the further displacement in the opening direction Y and thereafter slowly decreases again with increasing displacement.
(39) When no third magnet 34 is used, the shifting path of the slide 4, which leads to the latching being released and thus to the closure device 1 being opened, advantageously just can be dimensioned for a measure in the region of this maximum, so that an advantageous ejection effect is obtained and can be utilized for ejecting the connector 2.
(40) At the connector receptacle 30 two guide elements 301, 302 are provided, which in the manner of webs extend from an upper surface 300 of the housing 3 axially in direction of the closing direction X and are arranged at the perimeter of the connector receptacle 30. The one guide element 301 is arranged at a front side of the connector receptacle 30as seen in opening direction Yand the other guide element 302 is arranged at a rear side of the connector receptacle 30.
(41) The guide elements 301, 302 on the one hand serve to guide the connector 2 with its pin 21 during attachment to the connector receptacle 30 in the closing direction X into engagement with the detent spring element 41.
(42) On the other hand, the guide elements 301, 302 serve to support the pin 21 and thus the connector 2 with respect to the housing 3 when shifting the slide 4 for opening the closure device 1, so that the connector 2 cannot tilt relative to the housing 3 and the pin 21 is held at the housing 3 in a position coaxial to the closing direction X.
(43) The front guide element 301 here is of particular importance, which supports the pin 21 in particular when shifting the slide 4 in the opening direction Y. This is due to the fact that the connector 2 and the pin 21 in principle are not moved when the slide 4 is shifted in the opening direction Y. Due to friction between the latching portions 210, 410 and due to magnetic forces acting between the magnetic means 22, 32, 34, however, an action of force on the connector 2 occurs, which possibly might lead to tilting of the connector 2 in the connector receptacle 30 and thereby possibly might impair a removal of the connector 2. This is prevented by providing the front guide element 301, in that on shifting the slide 4 in the opening direction Y the pin 21 is pressed into contact with the front guide element 301 and a full contact with the axially extending, front guide element 301 thereby is effected, which prevents tilting of the connector 2 in the connector receptacle 30.
(44) The prevention of tilting can have a positive influence on the function in two respects: Firstly, jamming of the connector 2 in the housing 3 on opening can be prevented. Secondly, an ejection effectively can be achieved when using only two magnets 22, 32, which is the stronger the more exactly the connector 2 is guided in the housing 3.
(45) In the illustrated exemplary embodiment, the spring element 35 in principle also can be omitted as resetting means for transferring the slide 4 into the starting position after actuation for opening purposes. The magnetic means 22, 32, 34 also have a resetting effect such that when the pin 21 approaches the connector receptacle 30 of the housing 3, the slide 4 is pulled against the opening direction Y in direction of the starting position as shown in
(46) In principle, other resetting means also can be employed, for example a pneumatic spring element, or resetting can be effected due to the gravity acting on the slide 4 in a position of normal use (e.g. at a bag).
(47) The closure device 1 in particular can be used for connecting two belts. At the connector 2 on the one hand and at the housing 3 on the other hand, a fastening device 23, 33 in the form of a belt anchorage each can be arranged for example, which clampingly holds a belt at the connector 2 or the housing 3.
(48) When a belt webbing clamping device is used, a clamping lever 24 for example can be provided (such as for example in the exemplary embodiment at the connector 2), which must be released for clampingly holding a belt webbing. Via pivot pins 240, which in the mounted condition of the clamping lever 24 engage into cutouts 230 at the body 20 of the connector 2, the clamping lever 24 is pivotally mounted at the body 20 about a pivot axis S and is located on a side of the body 20 which in the closed position faces the housing 3, so that in the closed position of the closure device 1 the clamping lever 24 is arranged between the connector 2 and the housing 3 and cannot be actuated by the connector 2 for releasing the belt webbing.
(49) In the exemplary embodiment of the closure device 1 as shown in
(50) In the illustrated exemplary embodiment, the closure device 1 includes a connector 2 with a single pin 21 and a housing 3 with a single connector receptacle 30. It can be conceivable and advantageous to arrange several pins 21 at a connector 2 and correspondingly several connector receptacles 30 at a housing 3. For opening such closure device 1 a slide then can be provided, which is formed integrally and for releasing the connections of each pin 21 with an associated detent spring element 21 can be shifted at the associated connector receptacle 30. Instead of a single slide, a plurality of slides can however also be provided, which either can be operated individually or are coupled with each other for joint actuation.
(51) A further exemplary embodiment of a closure device 1 is shown in
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(53) In contrast to the exemplary embodiment according to
(54) As shown in the separate views according to
(55) The detent spring element 41 includes a cutout 413 into which the guide element 301 engages on closing and in the closed position (see
(56) The spring portions 417 of the detent spring element 41 follow a circular contour and form the detent spring element 41 substantially ring-shaped in design, which is circumferentially open by an opening 411, as is also described above for the exemplary embodiment according to
(57) The mode of operation of the closure device 1 on closing (
(58) Because on closing the pin 21 of the connector 2 with its latching portion 210 runs up onto the latching portions 410 at the spring portions 417 of the detent spring element 414 (see
(59) The movement of the slide 4 in the opening direction Y, however, is small and maximally comprises the width of the radial protrusion of the latching portion 410 (i.e. the path along which the detent spring element 41 must back away, so that the latching portions 410 can get in engagement with the latching portion 210).
(60) The opening operation substantially is analogous to what has been described above for the exemplary embodiment according to
(61) In contrast to the exemplary embodiment according to
(62) A pin 418 (see
(63) The invention is not limited to the exemplary embodiments described above, but rather can also be realized in principle in completely different embodiments.
(64) In particular, the shifting path of the slide 4 need not necessarily be designed straight, but in principle can also have another, curved shape. Correspondingly, the opening direction Y can be curved.
(65) The shifting path for example can lie on a circular path around the closing direction X and thus in a plane vertical to the closing direction X.
(66) It is, however, also conceivable to arrange the shifting path on a circular path around a direction transverse to the closing direction X and transverse to the opening direction Y, so that the shifting path lies in the plane defined by the opening direction Y and the closing direction X.
(67) The slide can of course also be designed to be actuated by applying a tensile force (and not by applying a compressive force, like in the exemplary embodiments described above). The basic mode of operation of the closure device is not changed thereby.
LIST OF REFERENCE NUMERALS
(68) 1 closure device 2 connector 20 body 21 pin 210 latching portion 22 magnetic means 23 fastening mechanism 230 cutout 24 clamping lever 240 pivot pin 3 housing 30 connector receptacle 300 upper surface 301 first guide element 302 second guide element 31 sliding guideway 32 magnetic means 33 fastening mechanism 34 magnetic means 35 spring element 4 slide 40 body 41 detent spring element 410 latching portion 411 opening 412 receiving opening 413 cutout 414 holding portion 415 relief cut 416 connecting portion 417 spring portion 418 contact pin 42 holding element S pivot axis X closing direction Y opening direction