Device for fastening an object on a support plate and obtained assembly

Patent metadata

Field	Value
Publication number	US-10030684-B2
Application number	US-201415022621-A
Country	US
Kind code	B2
Filing date	Aug 26, 2014
Priority date	Sep 24, 2013
Publication date	Jul 24, 2018
Grant date	Jul 24, 2018

Abstract

A fastener device for fastening an article on a support plate, and the resulting assembly, which fastener device comprises: a hollow body that is secured to the support plate; a slider that is secured to the article and that is suitable for being engaged in the hollow body; and blocking means.
The blocking means comprise both at least one side opening that passes through the hollow body and also an elastically-deformable blocking tab that is carried by the slider and that, during engagement of the slider in the hollow body, is for deploying sideways into the side opening and for bearing simultaneously beneath the support plate so as to oppose any longitudinal removal of the slider, and against the slider so as to oppose any longitudinal thrust of the slider, and thus define a first blocking position.

First claim

The invention claimed is:

1. A fastener device for fastening an article on a support plate, which fastener device comprises: a hollow body that is for housing in an engagement opening of said support plate, and that is provided with anchor means that are suitable for securing it to said support plate; a slider that is suitable for successively being engaged in and extracted from said hollow body, and that is provided with attachment means that are suitable for securing it to said article; and blocking means that are arranged:
on application of a first longitudinal thrust on said slider, initially to allow said slider to be engaged longitudinally in said hollow body, and subsequently tending to hold said slider blocked longitudinally relative to said hollow body in a first blocking position in which it cannot be engaged longitudinally beyond said first blocking position; and
on application of a first longitudinal removal force on said slider following said first longitudinal thrust, to retract in part and initially unblock said slider from said first blocking position and allow it to be removed in part from said hollow body starting from said first blocking position, and subsequently block said slider longitudinally in a second blocking position that is longitudinally offset from said first position and in which it cannot be removed from said hollow body and cannot be engaged longitudinally beyond said second blocking position;
wherein said blocking means comprise both at least one side opening that passes through said hollow body and also an elastically-deformable blocking tab that is carried by said slider and that, during engagement of said slider in said hollow body, is for deploying sideways into said side opening and for bearing simultaneously beneath said support plate so as to oppose any longitudinal removal of said slider, and against said slider so as to oppose any longitudinal thrust of said slider, and thus define said first blocking position.

2. A fastener device according to claim 1 , wherein said blocking means are arranged:
on application of a second longitudinal thrust on said slider following said first longitudinal removal force, to retract in part and block said slider longitudinally relative to said hollow body in said first blocking position; and
on application of a second longitudinal removal force thrust on said slider following said second longitudinal thrust, to retract completely so as to unblock said slider from said first position and allow it to be removed completely from said hollow body.

3. A fastener device according to claim 1 , wherein said blocking means comprise a flexible tab provided at least with a cam finger and a cam, one of which is carried by said slider and the other by said hollow body, said cam including a central island that defines a guide path suitable for guiding said cam finger, and that is provided with an engagement portion for guiding said cam finger towards its first blocking position while said slider is being engaged in said hollow body, a disengagement portion for acting, while the slider is being removed, to guide said cam finger relative to said hollow body after said second blocking position, and a setback that separates said engagement and disengagement portions, and that is for receiving said cam finger and for defining said second blocking position.

4. A fastener device according to claim 3 , wherein said cam includes a stop lug that is longitudinally offset from said central island and that is provided longitudinally facing said setback, and in that said slider is arranged so that, in said first blocking position, said cam finger is longitudinally facing said stop lug and is flattened by said flexible tab against said stop lug that prevents it from passing from said engagement portion to said disengagement portion, thereby defining a standby position for said cam finger.

5. A fastener device according to claim 4 , wherein said central island includes a flexible finger that is arranged to prevent said cam finger from being inserted into said disengagement portion while said slider is being engaged in said hollow body, and to allow said cam finger to leave said disengagement portion while said slider is being removed from said hollow body.

6. A fastener device according to claim 3 , wherein said flexible tab is carried by said slider, and in that said cam is carried by said hollow body.

7. A fastener device according to claim 3 , wherein said flexible tab presents an upsidedown T-shape, in that the width of said stem of the T-shape is less than the width of said jaws, in that the bar of said T-shape forms the cam finger on either side of said stem of the T-shape, and in that said hollow body includes the two cams that are provided on either side of a mid-plane of said hollow body, symmetrically to each other about said mid-plane and each for receiving one of said cam fingers.

8. A fastener device according to claim 1 , wherein said slider includes two flexible jaws that co-operate with each other to define a longitudinal recess for receiving said article and for blocking it between them by clamping, so as to form said attachment means.

9. A fastener device according to claim 8 , wherein said slider is formed by folded sheet metal, in that each jaw presents an upsidedown U-shape, the ends of the facing inside branches of said jaws being interconnected via a base so as to co-operate with each other to define a U-shape that defines said longitudinal recess, and in that an outside branch of one of the jaws opposite to the other jaw is extended longitudinally by a plane portion forming said flexible tab.

10. A fastener device according to claim 9 , wherein each free end of each outside branch of said upsidedown U-shape of each jaw includes a flap that is folded back towards the corresponding inside branch of said upsidedown U-shape, in that each free end of each inside branch of said upsidedown U-shape of each jaw includes a notch that houses said corresponding flap and that is arranged in such a manner that, while said slider is being subjected to said first or second longitudinal removal force, it receives thrust from said flap, so as to prevent said outside branches from unfolding relative to said inside branches.

11. A fastener device according to claim 9 , wherein said slider includes at least one blocking strip that extends from said base defining said longitudinal recess, and that is arranged in such a manner that, while said slider is being subjected to said first or second longitudinal removal force, it bears against the free ends of said outside branches, so as to prevent said inside branches from unfolding relative to said outside branches.

12. A fastener device according to claim 1 , wherein said hollow body includes at least one platform that extends sideways and that is for coming to bear against said support plate, and a flexible hook that is flexible sideways and that is suitable for retracting while said hollow body is passing into said engagement opening, and for deploying beneath said support plate when said platform bears against said support plate so as to block said support plate between said platform and said flexible hook and so as to form said anchor means.

13. A fastener device according to claim 1 , wherein the hollow body comprises first and second body portions that are designed to be mounted on each other and to be taken apart.

14. An assembly of an article on a support plate that is provided with an engagement opening, the assembly comprising a fastener device according to claim 1 , said hollow body being housed in said engagement opening and secured to said support p

Assignees

• A Raymond Et Cie
• A Raymond Et Cie

Inventors

• Paquet Jerome

Classifications

• E05C19/06

  in which the securing part if formed or carried by a spring and moves only by distortion of the spring, e.g. snaps · CPC title

• E05C19/022 Primary

  Released by pushing in the closing direction · CPC title

• F16B21/065 Primary

  with an additional locking element · CPC title