JP3107030U - Buffering device for slide rail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slide rail buffer localization device in which a contact portion between a buffer part and a movable rail has a stable elastic compressing action and further maintains a long-term and stable engaging and fixing action.
A shock-absorbing component 1 is installed at the rear end of a fixed rail 2, and the impact force of the movement is buffered when the movable rail is housed to fix the position of mutual engagement. The contact portion between the shock-absorbing component 1 and the movable rail has a stable elastic compression action and can maintain a stable engagement and fixing action. The shock-absorbing parts 1 are provided with fitting tanks 11 that are flat on both inner tank ends, and the widths of the substantial cross-sectional shapes at both ends of the shock-absorbing parts are the same. The fitting tank 11 is fitted to the curved forming piece 21 at the rear end of the fixed rail 2, and since the piece 21 is flat on both sides, both ends of the shock-absorbing component have deformation elasticity that is stably matched. A connecting part is installed on the shock-absorbing part, and a fixed relation is formed with the fixed rail 2. The connecting part is located inside the fitting tank, fits on one body, extends from the outer surface of the shock-absorbing part, is formed, and the fixed rail. It mates with the above mating structure.
[Selection] Figure 1

Description

  The present invention relates to a buffer rail localization device for a slide rail.

  Generally, a three-stage slide rail includes a fixed rail (outer rail), a receiving rail (middle rail), and a movable rail (inner rail). The fixed rail (outer rail) of the slide and the slide rail used for its drawer is fixed to the chest, and the movable rail (inner rail) is fixed to both sides of the drawer. The receiving rail (middle rail) usually has a ball bearing type slide auxiliary part drilled in the fixed rail (outer rail) to receive the sliding of the movable rail (inner rail). As a result, the movable rail (inner rail) and the receiving rail (middle rail) reciprocate relative to the fixed rail (outer rail) along the same rivet direction, and the drawer is pulled out relative to the chest. Pushed back.

  As shown in FIG. 8, this type of three-stage slide rail is provided with a slide auxiliary part D and an auxiliary part E between the movable rail A and the receiving rail B and between the receiving rail B and the fixed rail C. The movable rail A and the receiving rail B are relatively provided with the engaging part F and the guard base G, and provide a one-way localization when the movable rail A is pulled out to the limit. A contraction diameter opening A1 is formed at the rear end of the movable rail A, and a curved piece A2 is formed at the front end. Corresponding to the rear end of the fixed rail C, a peanut-like buffer guard block H is installed. Further, the engagement fixing part F is installed inside the movable rail A, and the convex part F1 is installed, and the guard base G is located at the front end of the receiving rail B and comes into contact with the fixed block G1 formed in the upper part. As a result, when the movable rail A inserted into the receiving rail B is pulled forward by the operator, the engagement fixing component F that follows the movement of the movable rail A is appropriately fixed to the guard base G by the protrusion F1. Stopped at the block G1 to prevent the movable rail A from being detached from the receiving rail B.

  Further, when the movable rail A is pushed, the front end bending piece A2 hits the guard base G at the front end of the receiving rail B and interlocks the return of the receiving rail B. Further, when the end of the fixed rail C fits, the shock-resistant guard block H at the rear end of the fixed rail C is fitted by the contraction diameter opening A1 at the rear end of the movable rail A, and the movement shock is relaxed to form a tight localization state. .

A known technique of the buffer guard block H installed at the rear end of the fixed rail C described above can be found in US Pat. No. 6,254,209. The buffer guard block is fitted and fixed to a curved piece at the rear end of the fixed rail. The single piece at the rear end of the fixed rail has a depressed shape on both sides, and forms a protruding portion at an intermediate position between both ends inside the rod-like fitting tank of the buffer guard block. After the opposing fitting, the projecting portion is installed at a depressed position on both sides of the single body, and the buffer guard block has a drop-off preventing function that engages and fixes the single body.

  Furthermore, in the known technique shown in the US patent (see FIG. 2), the single body uses a concave shape on both sides to form two convex angles on the upper side, and the width of the rod-like fitting tank of the buffer guard block is Slightly smaller than two biconvex angular distances of one body. As a result, when the buffer guard block is fitted into one body, the convex angle is fitted into the inner tank wall of the buffer guard block, and the locking effect is achieved.

US Pat. No. 6,254,209

However, as a result of a detailed study of an assembled state in which the buffer guard block is fitted on the rear end piece of the fixed rail, the present inventor discovered the following situation (see FIG. 9).
Protruding parts are formed at the center positions of both ends inside the rod-like fitting tank of the buffer guard block, so that the width of the substantial cross-sectional shape at both ends of the buffer guard block is not constant, and the part where the width is not constant is also Used for contact with the rear end constriction, and achieves a shock-absorbing action of elastic compression. However, the degree of elastic deformation (stress) provided at the head position of the cross-section of the block body whose width is not constant is not the same, and the engagement point of the movable rail rear end constriction changes due to the problem of product tolerance. Thus, it is disadvantageous for constant tightness control under the localization state. When product users make demands for quality, the quality control of the manufacturer becomes difficult.

  In the design in which the buffer guard block is tightly fitted to the two convex angles, the fitting position of the buffer guard block inner tank wall and the convex angle of the single body also exhibits a compression cross-sectional shape that is “the width is not constant”. In this configuration, the compression elastic force provided by the buffer guard block with respect to the movable rail rear end constriction is also not equal. That is, it is similarly disadvantageous for the tightness control.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a slide rail cushioning and positioning device that has a stable elastic compression action at the contact portion between the cushioning component and the movable rail, and maintains a long-term and stable engagement and fixing action. It is in.

  In order to achieve the above-mentioned object, the slide rail buffer localization apparatus according to the claims of the present invention is mainly configured such that the buffer parts are provided with fitting tanks with both internal tank end flattened, whereby the bodies at both ends of the buffer parts are installed. The width of the cross-sectional shape is the same. The fitting tank is fitted into the curved forming piece at the rear end of the fixed rail. Since the piece is flat on both sides, both ends of the shock-absorbing component have deformation elasticity that is stably matched. A connecting part is installed on the shock-absorbing part to create a fixed relationship with the fixed rail. The connecting part is located inside the fitting tank, fits on one side, or is stretched and formed from the outer surface of the shock-absorbing part. It mates with the above mating structure.

  As described above, according to the present invention, the shock absorber is installed at the rear end of the fixed rail, the impact force of the movement is buffered when the movable rail is stored, and the fixed position of the mutual engagement is fixed, thereby the contact between the shock absorber and the movable rail. The part has a stable elastic compression action, and can maintain a stable engagement and fixation action for a longer period of time.

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIG. 2, in the buffer localization apparatus of this embodiment, the buffer component 1 is mainly installed at the rear end of the fixed rail 2. The fixed rail 2 is formed by bending the upright piece 21 at the rear end, and the shock-absorbing component 1 is fitted.

  The shock-absorbing component 1 is provided with fitting tanks 11 with both ends of the tank being flat, whereby the cross-sectional shape widths at both ends of the shock-absorbing component 1 are the same, and the connecting portion 12 is disposed on the shock-absorbing component 1. The connecting portion 12 is located at the center position on one side surface of the fitting tank 11 and forms a convex block shape.

  A piece 21 that is curved at the rear end of the fixed rail 2 is formed flat on both sides, and a central position of the piece 21 is opposed to the convex block shape connecting portion 12 of the cushioning component 1 and a perforation 211 is provided. Thereby, the structure of a convex body and a hole is mutually fitted.

  When the cushioning component 1 and the fixed rail 2 rear end piece 21 are designed and combined, as shown in FIG. 2, the cushioning component 1 is fitted into the curved piece 21 of the fixed rail 2 rear end by the fitting tank 11. That is, the fitting tank 11 is engaged with the flat piece 21 by the end of the internal flat tank. As a result, both ends of the shock-absorbing component 1 have deformation elasticity that is consistently consistent from the top to the bottom. Further, in the cushioning component 1, the convex block-shaped body connecting portion 12 in the fitting tank 11 is fitted into the perforation 211 of the rear end piece 21 of the fixed rail 2 to achieve the purpose of fixing the cushioning component 1. In this fixed state, the stability of the contact compression of the cushioning component 1 against the movable rail 3 is not affected.

  Further, the shock-absorbing component 1 is fitted into the piece 21 of the fixed rail 2 by the fitting tank 11, so that the internal space of the fitting tank 11 is slightly smaller than the cross-section of the piece 21, and the engagement state becomes “tightly compatible”. , Provided with an appropriate degree of fixing action.

  As shown in FIG. 3, when the movable rail 3 is accommodated in the fixed rail 2, the narrowed portion 31 at the rear end of the movable rail 3 is fitted into the cushioning component 1 installed at the rear end of the fixed rail 2. Although there are fluctuations in the fitting and fixing positions of the movable rail 3 shrinkage 31, all the positions are on a portion having deformation elasticity in the shock-absorbing part 1, and it is advantageous for controlling a constant tightness in the localized state. Does not affect the “uncertain predisposition” of quality control. Thus, the production efficiency can be improved.

  In order to achieve the purpose of fixing the shock-absorbing component 1 at the rear end of the fixed rail 2 and not affect the stability of the contact compression of the shock-absorbing component 1 with respect to the movable rail 3, as shown in FIG. In the embodiment (one), the connecting portion 13 can be extended at the outer front bottom edge of the cushioning component 1. The connecting portion 13 includes an engagement hole 131 and can be fitted to the convex piece 22 that is press-formed on the rear end bottom plate of the fixed rail 2. As a result, the shock-absorbing component 1 is stably fixed at the rear end of the fixed rail 2 and does not affect the clamping and fixing range of the movable rail 3 shrinkage 31.

  As shown in FIG. 5, as in the combination example (2), the connecting portion 13 ′ can also be set at a position and form to be installed on both outer bottom edges of the cushioning component 1. It is also possible to adopt a form that is inserted into the engagement hole 131 ′.

  As shown in FIG. 6, the combination embodiment (3) forms a fitting body 14 that protrudes at both bottom edges of the cushioning component 1 and engages with an engagement body 23 that is press-formed on the rear end bottom plate of the fixed rail 2. Thus, it is possible to fit and fix.

  Further, as shown in FIG. 7, in the combination example (four), the fitting body 15 of another form is formed by the depressed space at the bottom edges of the cushioning component 1, whereby the engaging body 23 enters the depressed space and the fitting body 15 is inserted. It is also possible to fit and fix.

1 is a structural diagram illustrating a slide rail buffer localization apparatus according to an embodiment of the present invention; It is a figure which shows the combination of the buffer localization apparatus of a slide rail by the Example of this invention. It is a figure which shows the use condition of the buffering localization apparatus of a slide rail by the Example of this invention. It is a figure which shows the combination Example (one) of the buffering localization apparatus of the slide rail by this invention. It is a figure which shows the combination Example (2) of the buffering localization apparatus of the slide rail by this invention. It is a figure which shows the combination Example (3) of the buffering localization apparatus of the slide rail by this invention. It is a figure which shows the combination Example (four) of the buffering localization apparatus of the slide rail by this invention. It is a figure which shows the buffering localization apparatus of the conventional slide rail.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Buffer part, 2 Fixed rail, 3 Movable rail, 11 Fitting tank, 12 Connection part, 13 Connection part, 13 'Connection part, 14 Fitting body, 15 Fitting body, 21 piece body, 22 Convex piece, 22' Convex piece 22 engagement body, 31 shrinkage hole, 131 engagement hole, 131 ′ engagement hole, 211 perforation,

Claims (7)

The slide rail buffer positioning device is installed at the rear end of the fixed rail by buffer parts, and when the movable rail is stored, the impact force of the movement is buffered and engaged with each other for positioning.
The shock-absorbing parts are installed on both sides of the tank, and the solid cross-sectional shapes at both ends of the shock-absorbing parts have the same width.
On the rear end of the fixed rail is installed a single piece with both sides flat,
The shock-absorbing part is fitted into the piece at the rear end of the fixed rail by the fitting tank, the fitting tank is engaged with the flat piece by the inner flat tank end, and both ends of the shock-absorbing part have the same deformation elasticity, A slide rail buffer localization device characterized in that a connecting part is installed on the buffer part to form a fixed relationship with the fixed rail.   The slide rail buffer localization apparatus according to claim 1, wherein a space inside the fitting tank of the cushioning part is slightly smaller than a cross section of the piece, a tightly fitting fitting is provided, and a predetermined fixing action part is provided. .   A connecting part is installed on the shock-absorbing part, the connecting part is located on one side of the inner part of the fitting tank, forms a convex block shape, and a hole corresponding to the connecting part is punched on one piece of the rear end of the fixed rail. The slide rail buffer localization apparatus according to claim 1, wherein the coupling portion is fitted into the perforation to fix the buffer component.   The connecting part of the cushioning part extends and protrudes by the outer front bottom edge thereof, and the protruding connecting part has an engagement hole, and is fitted and fixed to a convex piece press-formed on the fixed rail rear end bottom plate. The buffering localization device for a slide rail according to claim 1.   The coupling parts of the cushioning parts extend and protrude at the bottom edges on both sides of the external part, respectively, have engagement holes, and install a convex piece facing the rear end of the fixed rail, and insert and fix in the engagement holes. 2. The slide localization apparatus for a slide rail according to claim 1, wherein   2. The slide rail according to claim 1, wherein the coupling part of the cushioning part is a fitting body projecting from the bottom edges on both outer sides thereof, and is engaged and fixed to each other by an engagement body formed by pressing on the bottom plate of the fixed rail. Buffer localization device.   The coupling part of the cushioning part forms a fitting body by the recessed space of the bottom edges on both outer sides thereof, and is fitted into the recessed space by an engagement body formed by pressing on the bottom plate of the fixed rail, and the fitting body is engaged and fixed. 2. The slide localization apparatus for a slide rail according to claim 1, wherein

Images