DE202012008685U1 - Invisible snap closure between joining parts with spring-supported sleeve - Google Patents

Abstract

Snap fastener (10) suitable for fixing a first thin- or thick-walled joining part (14) provided with an opening, such as a round hole (12), such as a wall unit, door leaf, flap or the like in an opening, such as a rectangular or square opening of a second thin-walled part Joining parts (16), such as wall brackets, cabinet frames, door frames, flap housings, with a foot part (20) which can be attached to the first joining part (14) in its opening (18), with the head part (22) being pushed away from the foot part (20) Head portion (22) in its longitudinal section from a free end of the head part towards the other end of the head part (22) has a first growing and then falling down diameter, which head part is a male insertion part of an undercut, from the opening (18 ) of the second thin wall (16) formed or worn female insertion overcoming one in the direction of the diameter radially outward act spring (28) is receivable, wherein the head portion (22) a guide or channel (24) for one or two (or more) by at least one spring (28) in a over the end of the guide or the channel (24) protruding Ends in a plane perpendicular to the thin wall (14, 16) extending plane is formed, characterized in that the head part (22) as a housing (44) with resilient mounting surfaces having mounting projections in the form of pushers (28) are provided which thrust elements (28) in a breakthrough opening (18) on the thin wall (12, 14) is attached, that in the housing unlocking means (solvent) (28, 38, 40, 42, 46) are provided, which from the front of the pushers ( 28) are retractable into the housing (44), and the housing (44) from the other thin wall (front plate) (16) is detachable, the dimensions between the holding portion of the fastening projections (48) and the thrust elements (28) einersei ts and the support plane of the foot part (20) on the other hand selected such that with retracted push elements (28) the mounting projections (48) with play on the front sheet (14) rest, characterized in that on the support plane of the foot part (20) a between this and the associated wall planes of the thin wall (front plate) (14) to lie coming compression spring (56) is arranged.

Description

The invention relates to a snap closure, suitable for defining a provided with an opening, such as round hole first thin or thick-walled joining part, such as cabinet wall, door leaf, flap or the like. On a second thin-walled joining part, such as wall support, cabinet frame, door frame, valve body, with a on the first joining part in the breakthrough attachable footboard, with wegerstreckenden from the footboard head part, which headboard in its longitudinal section from a free end of the head portion toward the other end of the head has a first growing and then falling diameter, which head a male Inserted part is, which is receivable by an undercut, formed by the opening of the second thin wall or worn female insertion member overcoming a radially outwardly acting spring force in the direction of the diameter, wherein the head part of a guide or channel for one or zw ei (or more) is formed by at least one spring in an over the end of the guide or the channel protruding ends in a direction perpendicular to the thin wall extending plane.

Such a snap closure is from the WO 2010/112052 A1 already known. A disadvantage of the prior art is that occur at the connection projecting parts. This is sometimes impractical, so that it is an object of the invention to provide a closure between different parts of different background, wherein the closure is not visible on at least one side of the round joining parts and at least not protruding, preferably not on either side of the connection having projecting parts.

The object is achieved according to the invention in that the head part occurs as a sleeve, with resilient attachment surfaces having fastening projections such as compression springs, which sleeve is attached to a breakthrough opening on the thin wall such that it detects only one wall (rear plate), and that in the housing unlocking means (solvent) are provided with which the push elements are zurückziebar from the front into the housing, and the housing of the other thin wall (front plate) is releasable, the dimensions between the holding portion of the mounting projections and the thrust elements on the one hand and the support plane of the foot part, on the other hand, is selected such that, when the push elements are retracted, the fastening projections rest with play on the front metal sheet, and characterized in that on the supporting plane of the foot part, between this and the associated wall planes of the thin wall (front B Lech) are arranged to lie coming compression springs.

According to a further development, the foot part and the head part are in one piece. On the other hand, the foot part may have a mounting flange.

According to a further embodiment, the snap closure comprises a foot part with a sleeve with bottom, wherein the bottom has an opening which allows passage of the head part in the sliding direction, but does not allow a counter-movement, wherein the counter-movement is prevented by a U-spring at the head end ,

A development of the snap closure is characterized in that the release shaft is mounted in the foot part and on one side comprises a release wedge and at the other end a Phillips, which is accessible through the round hole in a thin wall or thick wall.

Furthermore, a snap closure is characterized in that the sleeve encloses one or more compression springs whose one end on the sleeve bottom, on the other hand, are supported on the flange. In this case, the U-spring of the head part can be held by a broad projection at the head end.

The invention will be explained in more detail with reference to exemplary embodiments, which are illustrated in the drawings.

It shows:

1A in an exploded view of a first embodiment of the present invention, suitable for connecting two parts to be joined;

1B a view of the inventive arrangement from the front after assembly of the items;

1C a view of the arrangement according to 1B , but in perspective from behind;

2A an exploded view of another embodiment of the invention, suitable for. B. for connecting a thin wall with a thick wall;

2 B the arrangement according to 2A after assembly of the items;

3A a side view and

3B a perspective view of an arrangement according to 1A before installation;

4A and 4B different views of the arrangement according to 1A after mounting in the thin wall;

5A and 5B the views after connection of the two thin walls;

6A and 6B Similar views of another embodiment, namely the 2A ;

7A and 7B various representations after mounting the inventive arrangement on a thick wall; and

8A and 8B the arrangement according to 2A after mounting the thick or thin wall.

It shows 1A in an exploded view, a first embodiment of the snap closure according to the invention or snap fastening.

The snap closure 10 is suitable for fixing one with a breakthrough, such as round hole 12 provided first thin or thick-walled joining part 14 , 114 , like wall unit, door leaf, box lid, flap with a breakthrough 18 , like rectangle or square opening of a second, thin-walled joining part 16 such as cabinet frame, door frame, box frame, flap frame, wall support, with one on the first joining part 14 in its breakthrough 12 , like cabinet frame, door frame, box frame, flap frame 16 , in its round hole or rectangular opening to the snap closure 10 aligned attachable footboard 20 , please refer 3A , and with one from the foot part 20 itself wegersteckenden headboard 22 , which headboard 22 in its longitudinal section from the first, free end of the head part 22 has an initially growing and then falling down diameter, which headboard 22 represents a male plug in, that of an undercut, of the breakthrough 18 in the second thin wall 16 formed or worn female insertion member can be received by overcoming a spring force acting radially outward in the direction of the diameter, wherein the head part is a guide or channel 24 for one or two (or more) by at least one spring 28 in one over the end of the channel or the channel 24 protruding ends is formed in a direction perpendicular to the thin wall extending plane.

According to the invention, the head part 22 as a housing 44 with flexible mounting surfaces having mounting projections in the form of pushers 28 provided, which holding and pushing elements 28 are installed so that they along an oblique inlet edge or surface 68 from the edge of the breakthrough 18 is pressed against spring force until the holding area 70 is reached and the retaining element 28 springs back and from the retaining elements 28 the housing 44 in the opening 18 the thin wall or the second joining part 16 is held.

5A respectively. 5B reflects this situation, with the thin wall (eg sheet metal wall) 14 over a hanger 16 on the thin wall 216 is connected. It carries the first thin wall 14 studs 30 made of metal. The studs 30 the thin wall 14 wear a flange 36 , The joining part 14 can be on the flange of the foot part 20 the thin wall 14 be attached, taking it at the disc 34 between mother 32 and flange 36 to come to rest.

The holding elements 28 can be brought out of their blocking position by a fork-like tool, provided the holding elements 26 are accessible in the assembled state. That is with 5A z. B. not the case. In this situation, the closure or attachment 10 to be able to open, for example, the two thin walls 14 . 16 to separate from each other, it is intended to apply a solvent or unlocking, with the top of the pushers 28 by means of a screwdriver, through the opening 12 is passed through, from the blade incisions 38 , please refer 1A , in the push elements 28 be achieved. Instead, a stub shaft 40 by means of a retaining ring 42 within the foot part 20 held axially, but can be rotated with a Phillips screwdriver, whereupon a protruding at the other end part 46 grabs the recesses 38 the pushers 28 and pulls back when the closure is to be opened or the attachment is to be solved.

The headboard 22 is with the foot part 20 in one piece or the parts 20 . 22 are welded together. A U-spring 48 serves to limit the movement of the sleeve part 50 , The U-spring 48 becomes by means of a broad-based approach 52 held, with the spring ends of the spring 48 on the floor surface 54 support. The U-spring 48 serves to the sleeve 50 Hold on to them and the tension of the springs 56 support, with spring guides 58 . 60 prevent projection of the springs when they are brought under compressive stress. This tension transfers to the end of the back wall 34 which is held and presses the thin wall 16 thin against the retaining elements 20 , please refer 2A and 5A ,

6A to 8B show an embodiment in which the flange 136 by means of wood screws 130 on a wooden plate 114 is mounted.

An inventive arrangement succeeds, an invisible shutter 10 . 110 between two parts to be joined 145 . 16 to realize. The U-spring 48 is required according to the invention, the sleeve 50 to hold and limit their travel when the snap element 28 is run over and not as a bracket for the wall in the direction to the counter wall. The U-spring thus also does not serve to hold the snap lock captive on the first sheet, as in the prior art.

This will become an invisible shutter or connection 10 . 110 between two parts to be joined 14 . 16 with spring-supported sleeve 50 created in which the headboard 22 with flexible mounting surfaces having mounting projections in the form of pushers 28 are provided which thrust elements in a breakthrough opening 18 on the thin wall 12 . 14 are fastened such that in the housing unlocking devices (solvents) 38 . 40 . 42 . 46 are provided with those from the front, the pushers 28 in the case 44 are zurückziebar, and the housing 44 from the other thin wall (rear panel) 16 . 216 is detachable, wherein the dimensions between the holding portion of the fastening projections 48 and their pushers 28 on the one hand and the support plane of the foot part 20 on the other hand is chosen such that when retracted pushers 28 the fastening projections 48 with play on the front sheet 14 rest, and that on the support plane of the foot part 20 one between this and the associated wall planes of the thin wall (front plate) 14 to lie coming compression spring 56 is arranged.

As already stated, are foot part 20 and headboard 22 integrally. Conveniently, the foot part 20 a mounting flange 36 on.

Another embodiment comprises the foot part 20 a sleeve 50 with soil 54 where the ground 54 has a breakthrough, the passing of the head part 22 allowed in the Aufschieberichtung, a counter-movement but not allowed, the counter-movement by a U-spring 48 is prevented at the headboard end.

Conveniently, the release shaft 40 in the foot part 20 stored and on one side a release wedge 46 and at the other end a cross slot 64 passing through the round hole 12 in the one thin wall 14 or thick wall 114 is accessible.

Conveniently, the sleeve 50 one or more compression springs 56 enclose one end on the bottom of the case 54 , on the other hand, on the flange 36 support.

According to yet another embodiment, the U-spring 48 of the headboard 22 from a broad margin 52 held at the head.

LIST OF REFERENCE NUMBERS

10

Snap fastening, snap closure

12

Breakthrough, round hole

14

first joining part such as wall unit, door leaf, box lid, flap

16, 116, 216

second joining part such as cabinet frame, door frame, box frame, flap frame

18, 118

breakthrough

20

footboard

22

headboard

24

Guide, channel

26

feather

28

Holding or pushing elements

30, 130

Stud bolts, wood screws

32

mother

34

washer

36, 136

flange

38

incision

40, 140

stub shaft

42

circlip

44

casing

46

Blade, release wedge

48

U-spring

50

shell

52

broad approach

54

Bottom of the sleeve

56

compression spring

58

leadership

60

leadership

62

breakthrough

64

Phillips

66

Breakthrough in the bottom of the sleeve

68

sloping leading edge

70

holding area

72

Edge of the breakthrough

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2010/112052 A1 [0002]

Claims (8)

Snap closure ( 10 ), suitable for defining one with a breakthrough, such as round hole ( 12 ) provided first thin or thick-walled joining part ( 14 ), such as cabinet wall, door leaf, flap or the like. In an opening, such as rectangular or square opening of a second thin-walled joining part ( 16 ), such as wall support, cabinet frame, door frame, flap housing, with a on the first joining part ( 14 ) in its breakthrough ( 18 ) attachable footboard ( 20 ), with itself from the foot part ( 20 ) wegersteckenden headboard ( 22 ), which headboard ( 22 ) in its longitudinal section from a free end of the head part in the direction of the other end of the head part ( 22 ) has an initially growing and then decreasing diameter, which head part represents a male plug-in part, which from an undercut, from the breakthrough ( 18 ) of the second thin wall ( 16 ) formed or carried female insertion part overcoming a radially outwardly acting spring force in the direction of the diameter ( 28 ) is receivable, wherein the head part ( 22 ) a guide or channel ( 24 ) for one or two (or more) by at least one spring ( 28 ) into one over the end of the guide or the channel ( 24 ) protruding ends in a direction perpendicular to the thin wall ( 14 . 16 ) is formed extending plane, characterized in that the head part ( 22 ) as a housing ( 44 ) with resilient attachment surfaces having mounting projections in the form of pushers ( 28 ) are provided which thrust elements ( 28 ) in a breakthrough opening ( 18 ) on the thin wall ( 12 . 14 ), that in the housing unlocking means (solvent) ( 28 . 38 . 40 . 42 . 46 ) are provided with which from the front the pushers ( 28 ) in the housing ( 44 ) are zurückziebar, and the housing ( 44 ) from the other thin wall (front sheet) ( 16 ), wherein the dimensions between the holding region of the fastening projections ( 48 ) and of the pushers ( 28 ) on the one hand and the support plane of the foot part ( 20 ) on the other hand chosen such that when retracted pushers ( 28 ) the fastening projections ( 48 ) with play on the front sheet ( 14 ) rest, characterized in that on the support plane of the foot part ( 20 ) one between this and the associated wall planes of the thin wall (front plate) ( 14 ) Coming spring ( 56 ) is arranged. Snap closure according to claim 1, characterized in that foot part ( 20 ) and headboard ( 22 ) are integral. Snap closure according to claim 1 or 2, characterized in that the foot part ( 20 ) a mounting flange ( 36 ) having. Snap closure according to claim 1, 2 or 3, characterized in that the foot part ( 20 ) a sleeve ( 50 ) with ground ( 54 ), the one breakthrough ( 62 ), which has a passage of the head part ( 22 ) in the Aufschieberichtung allowed, a counter-movement but not allowed, the countermovement by a U-spring ( 48 ) is prevented at the headboard end Snap closure according to one of claims 1 to 4, characterized in that after assembly, the release shaft ( 40 ) in the foot part ( 20 ) is mounted and on one side a release wedge ( 46 ) and at the other end a Phillips ( 66 ) passing through the round hole ( 12 ) in the one thin wall ( 14 . 16 ) or thick wall ( 116 ) is accessible. Snap closure according to one of claims 1 to 5, characterized in that the sleeve ( 50 ) one or more compression springs ( 56 ), one end of which lies on the sleeve bottom ( 54 ), on the other hand, on the flange ( 36 ). Snap closure according to one of claims 1 to 6, characterized in that the U-spring ( 48 ) of the header ( 22 ) is held by a broadly pressed projection at the head end. Snap closure according to one of claims 1 to 7, characterized in that the pusher elements ( 28 ) an inlet area ( 68 ) and a holding area ( 70 ) for cooperation with a breakthrough edge ( 72 ).

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