Hinge pin for a hinge or joint

Abstract

A pin for a hinge or articulated connection comprising two articulated pieces or hinge leaves having in each instance a receiving space for the pin such as an articulated pin or hinge pin, which receiving space is oriented coaxial to the joint axis or hinge axis, wherein the articulated pin or hinge pin is formed of two parts, and wherein the inner end of the one pin part can be connected to the inner end of the other pin part by means of toothed engagement, hooking engagement or clipping engagement.

Claims

1. An articulated connection or hinge comprising: a pin; and two articulated pieces or hinge leaves, each having a cylindrical receiving space for the pin; wherein the cylindrical receiving space is oriented coaxial to a connection axis or hinge axis of the articulated connection or hinge; wherein the pin comprises: a first pin part; and a second pin part; wherein an end of the first pin part comprises a first hook, and an end of the second pin part comprises a second hook; wherein an inner end of the first hook comprises a first toothing and an inner end of the second hook comprises a second toothing configured to engage with the first toothing to connect the first pin part to the second pin part; wherein the first toothing and the second toothing each comprises one to eight teeth; wherein the first pin part and the second pin part each comprise a head that is configured to sit inside a respective outer part of the articulated connection or hinge in an axial direction of the connection axis or hinge axis; wherein each head forms a shoulder that is supported on a central part of the articulated connection or hinge, the central part being located between the outer parts in the axial direction; and wherein the outer parts of the articulated connection or hinge are swivelably held by the heads of the first and second pin parts.

2. The articulated connection or hinge according to claim 1; wherein the shoulder of each head is supported on the central part indirectly via a bushing that is arranged between the pin and the central part, the bushing forming a space for the two-part pin around a connection area; wherein the space formed by the bushing around the connection area of the two-part hinge pin is configured to accommodate the first hook and allow the first hook to move back during assembly of the hinge pin.

3. The articulated connection or hinge according to claim 1; wherein the first and second hooks narrow toward their respective ends and accordingly provide maneuvering space for assembly.

4. The articulated connection or hinge according to claim 1; wherein the head is square.

5. An articulated connection or hinge comprising: a pin; and two articulated pieces or hinge leaves, each having a cylindrical receiving space for the pin; wherein the cylindrical receiving space is oriented coaxial to a connection axis or hinge axis of the articulated connection or hinge; wherein the pin comprises: a first pin part; and a second pin part; wherein an inner end of the one of the first and second pin parts forms a hook-shaped projection configured to be received by a suitably shaped recess in the inner end of the other of the first and second pin parts to prevent the two pin parts from rotating relative to one another and to secure the connection between the two pin parts; and wherein the first and second pin parts are identical, and are configured to be connected to each other with the first pin part being inverted and rotated by 90 with respect to the second pin part.

6. The articulated connection or hinge according to claim 5; wherein the first pin part and the second pin part each comprise a head that is configured to sit inside a respective outer part of the articulated connection or hinge in an axial direction of the connection axis or hinge axis; wherein each head forms a shoulder that is supported on a central part of the articulated connection or hinge, the central part being located between the outer parts in the axial direction; and wherein the outer parts of the articulated connection or hinge are swivelably held by the heads of the first and second pin parts.

7. The articulated connection or hinge according to claim 6; wherein the head is square.

8. The articulated connection or hinge according to claim 5; wherein a bushing is arranged between the pin and the central part, the bushing forming a space for the two-part pin around a connection area; wherein the space formed by the bushing around the connection area of the two-part hinge pin is configured to accommodate the hook-shaped projection and allow the hook-shaped projection to move back during assembly of the hinge pin.

9. An articulated connection or hinge comprising: a pin; and two articulated pieces or hinge leaves, each having a cylindrical receiving space for the pin; wherein the cylindrical receiving space is oriented coaxial to a connection axis or hinge axis of the articulated connection or hinge; wherein the pin comprises: a first pin part; and a second pin part; wherein an end of the first pin part comprises a first hook, and an end of the second pin part comprises a second hook; wherein the first pin part and the second pin part each comprise a head that is configured to sit inside a respective outer part of the articulated connection or hinge in an axial direction of the connection axis or hinge axis; wherein each head forms a shoulder that is supported on a central part of the articulated connection or hinge, the central part being located between the outer parts in the axial direction; and wherein the outer parts of the articulated connection or hinge are swivelably held by the heads of the first and second pin parts, wherein the first hook and the second hook are configured to engage with each other via a leaf spring that is bent in a V-shape; wherein, after assembly, the two pin parts form a receiving space for the leaf spring, which is supported as part of the pin at end walls of the receiving space; wherein the end walls extend transverse to a pin axis; and wherein free ends of the V-shape are supported on one of the end walls and a bend area of the V-shape is supported on another of the end walls.

10. An articulated connection or hinge comprising: a pin; two articulated pieces or hinge leaves, each having a cylindrical receiving space for the pin; wherein the cylindrical receiving space is oriented coaxial to a connection axis or hinge axis of the articulated connection or hinge; wherein the pin comprises: a first pin part; and a second pin part; wherein an end of the first pin part comprises a first hook, and an end of the second pin part comprises a second hook; wherein an inner end of the first hook comprises a first toothing and an inner end of the second hook comprises a second toothing configured to engage with the first toothing to connect the first pin part to the second pin part; wherein the first toothing and the second toothing each comprises one to eight teeth; wherein: a pin diameter is 6 D, where D is approximately 6 mm; a radial height of a tooth base is 3.2 D and the tooth height is 0.4 D; and a diameter of at least a portion of one of the cylindrical receiving spaces is 6.1 D; and wherein the first and second pin parts are configured to be connected to one another when a corresponding pressure is exerted, and to simultaneously be easily movable so as to be swivelable around the connection axis or hinge axis.

11. The articulated connection or hinge according to claim 10; wherein the first pin part and the second pin part each comprise a head that is configured to sit inside a respective outer part of the articulated connection or hinge in an axial direction of the connection axis or hinge axis; wherein each head forms a shoulder that is supported on a central part of the articulated connection or hinge, the central part being located between the outer parts in the axial direction; and wherein the outer parts of the articulated connection or hinge are swivelably held by the heads of the first and second pin parts.

12. The articulated connection or hinge according to claim 11; wherein the head is square.

13. The articulated connection or hinge according to claim 10; wherein a bushing is arranged between the pin and the central part, the bushing forming a space for the two-part pin around a connection area; wherein the space formed by the bushing around the connection area of the two-part hinge pin is configured to accommodate the first hook so that the first hook may move back during assembly of the hinge pin.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention will be described more fully in the following with reference to embodiment examples which are illustrated in the drawings.

(2) The drawings show:

(3) FIG. 1A, 1B, 1C show a two-part pin according to the invention with a toothing at the place of separation with a slanted surface in preassembled position, the preassembled position being shown in an enlarged view in FIG. 1C;

(4) FIG. 2 shows a side view of a two-part hinge pin in combination with a head at both outer ends;

(5) FIG. 3 shows a further embodiment form of a connection area for a two-part pin;

(6) FIGS. 4A, 4B, 4C show a further embodiment form of a hinge with pin according to the invention in a side view, front view and detail view;

(7) FIG. 5A shows yet another embodiment form of a pin according to the invention;

(8) FIG. 5B shows a fragmentary view of further details of the pin according to FIG. 5A;

(9) FIG. 6 shows a top view of a further hinge according to the invention;

(10) FIG. 7 shows a modified embodiment form of the hinge according to the invention from FIG. 6 in a view similar to that in FIG. 6;

(11) FIGS. 8A, 8B show a pin similar to that shown in FIG. 6 in pre-assembly position and after assembly;

(12) FIG. 9A shows a hinge constructed according to the invention with a sleeve;

(13) FIG. 9B shows a pin from FIG. 9A before joining together;

(14) FIG. 9C shows the pin of the hinge from FIG. 9A after joining together;

(15) FIG. 9D shows a detailed side view of the central area of the two pin parts before joining together;

(16) FIG. 9E shows an end view with respect to the one hinge part;

(17) FIG. 9F shows another detail showing the bottom portion of the hinge connection rotated 90 with respect to FIG. 9D;

(18) FIG. 10A shows a perspective view of a further embodiment form of a part of the two-part hinge pin;

(19) FIG. 10B shows a perspective view of the two parts according to FIG. 10A before assembly;

(20) FIG. 10C shows an axial section through the arrangement according to FIG. 10B;

(21) FIG. 10D shows an axial section rotated by 90;

(22) FIG. 10E shows a side view of the embodiment form according to FIGS. 10A and 10B before assembly;

(23) FIG. 11 shows yet another embodiment form of the invention;

(24) FIG. 12A shows yet another embodiment form of the invention in a side view;

(25) FIG. 12B shows a top view;

(26) FIG. 13A shows yet another embodiment form of a hinge pin according to the invention for installation in a hinge;

(27) FIG. 13B shows a side view of the hinge;

(28) FIG. 13C shows an axial section along section line A-A of FIG. 13A;

(29) FIG. 13D shows a perspective arrangement before assembly of the hinge pin halves;

(30) FIGS. 14A to 14D show analogous views of a further embodiment form;

(31) FIG. 15A shows a side view;

(32) FIG. 15B shows an axial section along section line A-A in FIG. 15A;

(33) FIG. 15C shows a perspective view of the hinge pin from FIGS. 12, 13 and 14;

(34) FIG. 16A shows a side view of the two identical halves of an alternative hinge pin with leaf springs in a V-shape for hooking together the hinge pin parts as is shown in FIG. 16B and in an enlarged view in FIG. 16C.

DETAILED DESCRIPTION OF EMBODIMENTS

(35) It is to be understood that the figures and descriptions of the present invention have been simplified to illustrate elements that are relevant for a clear understanding of the present invention, while eliminating, for purposes of clarity, many other elements which are conventional in this art. Those of ordinary skill in the art will recognize that other elements are desirable for implementing the present invention. However, because such elements are well known in the art, and because they do not facilitate a better understanding of the present invention, a discussion of such elements is not provided herein.

(36) The present invention will now be described in detail on the basis of exemplary embodiments.

(37) A hinge 10 constructed according to the invention is shown in a top view in FIG. 4A and in a side view in FIG. 4B. The hinge 10 comprises two hinge leaves 12, 14 having in each instance a receiving space 18, 20 for the hinge pin 22, which receiving space 18, 20 is oriented coaxial to the hinge axis 16. These hinge leaves 12, 14 further have bore holes 48, 50, for example, for fastening the hinge leaves 12, 14, e.g., to a door frame or to a door leaf. The hinge pin 22 in this embodiment form according to FIGS. 4A, 4B is also formed of two parts, namely, the two parts 24 and 26. The inner end 28 of the one hinge pin part 26 can be connected to the inner end 30 of the other, second hinge pin part 26 by means of toothed engagement 32 (see FIG. 1A), hooking engagement 132 (see FIGS. 4A, 4B), or by clipping engagement. The toothing, which can comprise three teeth according to FIG. 1A or 1B, but which has eight teeth in FIG. 1C, proceeds from a slanting surface 34 forming an angle 36 with respect to the hinge axis 16. The slanting of the tooth surface 32 of the two hinge pin ends 28, 30 results in a keying of the two ends as is wanted so that they cannot be detached after assembly even as a result of a shaking movement or unauthorized pulling on the ends.

(38) FIG. 1A further shows that at least the outer end 52 of the at least one hinge pin part 24, 26 (see also FIG. 4A) forms a radially protruding enlargement 38, collar, round head, cylindrical head, countersunk head or the like. This provides an additional safeguard against removal by unauthorized persons because the collar 38 prevents the hinge pin 22 from being pushed through and exiting through the hinge space or out of space 18, 20. The slanted surface 34 proceeds from a radially extending surface 40 which forms a stop surface during the assembling movement in axial direction and prevents the parts from moving too far out of the mutually radially aligned position due to the slant.

(39) The situation is similar in the embodiment form according to FIG. 2. In the embodiment form according to FIG. 3, the toothing is formed in each instance by two saw teeth 232 which proceed from a lateral surface of a hook 42.

(40) FIGS. 5A and 5B show that an individual tooth is formed in each instance by hook 42 similar to FIG. 4A. In FIGS. 5A and 5B, the hooks 42 proceed from tongues 44 which are alternately formed by the two inner ends 28, 30 of the hinge pin parts. Referring to FIG. 6, the head 238 retracts and is supported on the central part 54 of the hinge 10, the outer parts 58 of the hinge 10 being held by the heads 238 of the hinge pin 22, 222.

(41) The embodiment form according to FIG. 7 likewise has a protruding head and is accordingly particularly secure against tampering. It differs from the pin according to FIG. 6 in that it works with resilient tips 56 of reduced thickness.

(42) FIG. 8A shows another embodiment form of the hooking engagement. FIG. 8B shows the assembled condition and FIG. 8A shows the condition prior to assembly.

(43) According to the embodiment form of FIGS. 9A to 9F, a sliding bushing 60 is arranged in each instance between the hinge pin 322 and the outer hinge part 58. Accordingly, an area is formed around the connection area of the two-part hinge pin 322 (see reference numeral 62), into which free space the hook 332 can move back during the assembly of the hinge pin, i.e., when the two hinge pin parts 324, 326 are pushed together. It can further be seen that the one inner end 328 of the one hinge pin half 326 forms a hook-shaped projection 64 which can be received by a suitably shaped recess 66 in the inner end 328 of the other hinge pin half 324. This serves to prevent rotation of the hinge pin halves 324, 326 relative to one another and, therefore, to secure the hook connection. Precise guiding is achieved by additional ribs and grooves (see reference numerals 68, 70).

(44) An embodiment form in which two hinge pin halves are again hooked together is shown in a perspective view in FIGS. 10A and 10B, in longitudinal section in FIGS. 10B and 10D and in a side view in FIG. 10F. In this case, the hooks of the one hinge pin part are again arranged so as to be rotated by 90 with respect to the other hinge pin part.

(45) In this case, rotation is prevented in that the hook sides are guided snugly at the recess sides by a kind of claw coupling so that the tongue-and-groove joint is unnecessary in this case.

(46) FIG. 11 shows a square head shape 338 which makes possible a flat end face. The square is again put under torsion and rotation of the pin only secures the central part.

(47) When the square 438 is displaced, the pin is (or pins are) securely in the correct rotational position.

(48) Tests have shown that in a steel hinge with a pin diameter of 6 D, where D is approximately 6 mm, the radial height of the tooth base is 3.2 D and the tooth height is accordingly 0.4 D. The hinge bore hole amounts to 6.1 D, the hinge pin parts can be connected to one another in case corresponding pressure is exerted, and the hinge is at the same time easily movable so as to be swivelable around the hinge axis (see the specified measurements in FIG. 2).

(49) The divided hinge pin according to FIGS. 15A to 15C, which is also a kind of claw coupling at the inner ends of the pin parts 424, 426 (FIG. 12B) and 524, 526 (FIG. 14C), respectively, is used in the hinges according to FIGS. 12A to 12D, FIGS. 13A to 13D and FIGS. 14A to 14D.

(50) FIG. 16A shows a side view of the two identical halves 624, 626 of an alternative hinge pin with leaf spring 74 in a V-shape for hooking the hinge pin parts to one another as is shown in FIG. 16B and in an enlarged view in FIG. 16C.

(51) After assembly, the hinge pin halves 624, 626 of the pin form a receiving space 76 for a leaf spring 74 which is bent in a V-shaped manner and which is supported at end walls 78, 80 and 82, respectively, (FIG. 16C) of the receiving space 76, which walls extend transverse to the pin axis 616, and the free ends of the V-shape are supported on the one side of walls 78, 80 and the bend area 84 of the V-shape is supported on the other side 80.

(52) The V-shape results in a slanted surface with respect to the pin axis 616 which, during assembly (inserting the two pin parts 624 and 626 together in the hinge bore hole or joint bore hole), is pressed back into space 90 by nose 92 until the leg of the V-shape forming the slanted surface is released and abuts in the corner of the cavity so as to support the pin part 624.

(53) It may be advisable to fix a spring leg in the receiving space, e.g., by gluing the spring leg 88 to the base of the receiving space 76.

COMMERCIAL APPLICABILITY

(54) The invention is commercially applicable in switch cabinet construction.

(55) While this invention has been described in conjunction with the specific embodiments outlined above, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art. Accordingly, the preferred embodiments of the invention as set forth above are intended to be illustrative, not limiting. Various changes may be made without departing from the spirit and scope of the inventions as defined in the following claims

LIST OF REFERENCE NUMERALS

(56) 10 hinge 12, 312 hinge leaves, central hinge part 14, 314 hinge leaves, outer hinge part 16 hinge axis 18 receiving space 20 receiving space 22, 222, 322 hinge pin 24, 324, 424 524, 624 hinge pin part 26, 326, 426 526, 626 hinge pin part 28, 328 inner end of the one hinge pin part 30 inner end of the other hinge pin part 32, 132, 232, 432 toothing 34 slanted surface 36 angle between slanted surface and hinge axis 38, 138, 238, 338, 438 enlargement, collar, round head, countersunk head, cylindrical head, square head 40 radial surface 42, 342, 442 hook 44 tongue 46 free space 48 opening 50 opening 52 outer end 54 central part 56 central part of reduced thickness 58 outer part 60 bushing 62 space 64 hook-shaped projection 66, 466 recess 68, 168 groove 70, 170 rib 72 narrowing 74 leaf spring 76 receiving space 78 end wall 80 end wall 82 end wall 84 bend area 86 slanted surface 88 spring leg 90 space 92 nose
No new matter has been added by the above amendments.