JP3131073U - Drawer shock absorber and slide rail with drawer shock absorber - Google Patents

Abstract

Drawer is difficult to slide out due to vibration, and even when closed, a little loud noise makes it difficult to affect the user and the people around it, and also improves the air capacity of the cylinder and increases the cushioning force. Provide slide rail with shock absorber.
A piston rod of a cylinder is divided into two or more segments, a piston ring is provided at the end of each segment of the piston rod, and two segments of adjacent piston rods are set together and connected together to form a cylinder liner. The heads of the first segments of the piston rods provided with convex columns at the end and the front end are connected by built-in springs penetrating from the segments of the middle piston rod. The slide rail with the drawer buffer includes an outer slide plate, an intermediate slide plate, an inner slide plate, and a drawer buffer, and the drawer buffer is fixed to the outside of the outer slide plate.
[Selection] Figure 10

Description

  The present invention relates to a drawer shock absorber and a slide rail with a drawer shock absorber.

  A drawer is a general unit that attaches to furniture, which is mounted in a drawer cavity attached to the furniture by a slide rail. General drawers easily slide out due to vibrations and easily drop items in the drawer. Also, when the drawer is closed, a slightly loud sound is likely to be produced, which affects the feelings of the user and those around.

In order to solve this problem, various types of drawer shock absorbers have been developed by industry employees. Among them, one kind of drawer shock absorber consists of a stand with a guide bar on the front end, a cylinder and a stop plate. The cylinder is fixed in the stand, and the stand is fixed to the outer wall of the drawer with screws. When the drawer is opened or closed, the drawer is moved, the stop plate is attached to the inner wall of the drawer cavity, and when the drawer is vibrated, the drawer is hardly slid out due to the damping action of the cylinder. Similarly, when the drawer is closed, there is no possibility of loud noise even if the drawer suddenly impacts the rear wall of the drawer cavity due to the damping action of the cylinder. The drawer shock absorber can be assembled by the user himself in the drawer, or the factory can fix it in advance on the slide rail of the drawer so that the user can easily assemble and use it. You can sell it.

When viewed from the drawer shock absorber and the slide rail with the drawer shock absorber that can be seen from the current market, the cylinder used for the shock absorber is composed of one cylinder liner and one piston rod. Due to the limited stroke of the bar (not exceeding 60mm), the product has had some practical limitations. In addition, the cross-sectional shapes of the liner and piston rod of these cylinders are all circular, the air capacity is too small, and the cushioning force is insufficient.

  An object of the present invention is to provide a drawer shock absorber and a slide rail with a drawer shock absorber, which have a longer cushion stroke and cushion force against the shortage of the prior art.

In order to achieve the above-mentioned object, the drawer shock absorber according to the present invention includes a stand, a cylinder, and a stop plate each having a guide bar on the front end protrusion, and the cylinder is fixed in the middle of the stand. A convex column is provided at the front end of the piston rod. A slide groove for moving the piston rod of the cylinder is formed in the guide bar, and a direction guide groove to be mixed with the convex column is formed on the outer surface of the guide bar. The position guide groove is connected to the front end of the direction guide groove. Yes. The stop plate has a guide groove for pulling and pushing the convex column into the position fixing groove.
The piston rod of the cylinder is divided into two or more segments, and a piston ring is provided at the end of each segment of the piston rod, and the two segments of the adjacent piston rods are integrally connected to each other and connected to the end of the cylinder liner. The head of the first segment of the piston rod provided with a convex column at the front end is connected by a built-in spring penetrating from each segment in the middle of the piston rod.

As an improvement measure of the above technical solution, the cylinder has an elliptical cross-sectional shape of the cylinder liner and each segment of the piston rod.
As a further improvement measure of the above technical solution, the material of the piston ring at the end of each segment of the piston rod is made of plastic, and a spring-through hole is formed in the middle of the material.
Limit grooves are formed on the outer end surface of each segment of the piston rod, and a limit convex point for blending with the limit groove in the segment of the immediately preceding piston rod is provided at the front end of each segment of the cylinder liner and the middle piston rod.
The convex column is fixed to the moving block, and a spring is provided at the lower end thereof, and the moving block communicates with the front end base of the first segment of the piston rod fixed to the cylinder.
The pull-out shock absorber is characterized in that a strip for avoiding bending of the end portion is provided in the vicinity of the end of the direction guide groove on the outer surface of the guide bar.
An air guide column that communicates with the inside of the cylinder liner is provided on the convex at the end of the cylinder liner, a rubber pad is provided in the air guide column, and an adjustment screw for controlling the air input amount is tightened at the rear end. is there.
The stand is provided with a tuning block for adjusting the stand orientation, screw holes are made on both left and right sides of the tuning block to be described, and guide pillars are molded on the inner end face. A guide hole to be blended with the column is made, and the size of the guide hole exceeds the size of the guide column.
The slide rail with a buffer for drawer in the present invention comprises an outer slide plate, an intermediate slide plate, an inner slide plate, and a drawer buffer. Ball tracks are provided on both the upper and lower sides of the slide plate. The drawer buffer is fixed to the outside of the outer slide plate. It has a stand, a cylinder and a stop plate with a guide bar on the front end. It is included. A cylinder is fixed in the stand, and a convex column is provided at the front end of the piston rod. A slide groove for moving the piston rod of the cylinder is formed in the guide bar, and a direction guide groove to be blended with the convex column is formed on the outer surface of the guide bar. The position fixing groove is connected to the front end of the direction guide groove. . The stop plate and the inner slide plate are connected to each other, and a guide groove for pulling and pushing the convex column into the position fixing groove is formed on the stop plate. The piston rod of the cylinder is divided into two or more segments, and a piston ring is provided at the end of each segment of the piston rod, and the two segments of adjacent piston rods are connected together and connected to the end of the cylinder liner. The head of the first segment of the piston rod provided with a convex column at the front end is connected by a built-in spring that communicates with each segment in the middle of the piston rod.
The stand of the shock absorber has an “L” shape, and a holding portion for holding the outer slide plate is provided at the rear end of the stand.

The effect of the present invention is that the piston rod of the cylinder is more than 2 segments, so the drawer cushion stroke (60mm minimum) is greatly lengthened, making it difficult for the drawer to slide out by vibration, and even when the drawer is closed slightly It is hard to affect the user and the people around because of the loud sound.
Moreover, since the cross-sectional shape of the cylinder and cylinder liner and piston rod of the present invention is elliptical, the air capacity of the cylinder can be improved and the cushioning force can be increased.

The following description is only a little better practice applied to the present invention, and is not limited to the scope of protection of the present invention.
First, please refer to FIG. 1 to FIG. 4 and FIG.
The drawer shock absorber according to the present invention has a stand 100 having a guide bar 10 on the convex at the front end, a cylinder 20 and a stop plate 30 (the stop plate 30 is attached to the front end of one slide liner 200 for storing the guide bar 10). May be included). The cylinder 20 is fixed in the stand 100, and its piston rod is divided into two segments (of course, it may be divided into two or more segments), and the end of the segment 21 of the first piston rod and the segment 22 of the second piston rod. Are provided with piston rings 211 and 221 each having a hole in the middle.

The piston rings 211 and 221 should be made of plastic so as to improve the sealing performance of the cylinder and increase the cushioning force. Piston rods 21 and 22 are set together and connected together. The end of the cylinder liner 23 of the cylinder 20 and the head of the first segment 21 of the piston rod are connected by a built-in spring 24 that passes through each segment of the middle piston rod. Also, the cylinder liner 23 of the cylinder 20 and the two segments 21 and 22 of the piston rod are elliptical in cross section, so that the air capacity of the cylinder can be improved and the cushioning force can be increased.

A slide groove for moving the piston rod of the cylinder 20 is made in the middle of the guide bar 10, a direction guide groove 11 is made on the outer surface of the guide bar 10, and the front end of the direction guide groove 11 is one position fixing groove 12 Connected. A guide groove 31 is formed in the stop plate 30.

A convex column 25 is provided at the front end of the first segment 21 of the piston rod. The convex column 25 is fixed to the movement block 26, and a spring 27 is provided at the lower end thereof so that the convex column 25 can be expanded and contracted. Even if the gap between the stopper plate 30 and the guide bar 10 is slightly large after the shock absorber is attached to the drawer, the convex column 25 can also be placed in the guide groove 31 attached to the stopper plate 30. The convex column 25 extends into the position fixing groove 13 or the guide groove 31 so that it can be hinged with the movement block 26 and the base 213 at the front end of the first segment 21 of the piston rod so that it can be rotated together with the movement block 26 and the convex column 25. To be caught in.

Limit grooves 212 and 222 are formed on the outer end surfaces of the piston rods 21 and 22, and limit convex points 231 are formed at the front ends of the cylinder liner 23 and the piston rod 22 with a limit groove to be attached to a segment of the immediately preceding piston rod, 223 is provided, and after the piston rods 21 and 22 reach the maximum stroke, the limit convex points 231 and 223 can be restricted from coming off the cylinder because the piston rods 21 and 22 continue to move.

In the vicinity of the end of the direction guide groove 11 on the outer surface of the guide bar 10, an avoidance strip 13 that can be bent at one end is provided so that the convex column 25 can easily slide into the guide groove 31.

See FIG.
An air guide column 28 that communicates with the inside of the cylinder liner is provided on the convex portion at the end of the cylinder liner 23, and the inside of the air guide column 28 is provided with a rubber pad 291. One adjustment screw for controlling the intake air amount later 29 is provided. The user can adjust the speed of movement of the piston rods 21 and 22 by controlling the amount of air entering the cylinder by tightening or loosening the screws.

Then please refer to FIG. 5 and FIG.
The stand 100 also has a tuning block 40 for adjusting the orientation of the seat 100 (the tuning block 40 is suitable when a shock absorber is used alone, and is used when the shock absorber and the slide rail of the drawer are connected together. (Block 40 is not necessary). Screw holes 41 are formed on both the left and right sides of the tuning block 40, and three guide pillars 42 are formed on the inner end face thereof. Correspondingly, a guide hole 101 to be blended with the guide pillar 42 is formed in the stand 100. The dimension of the guide hole 101 exceeds the dimension of the guide pillar 42, and the guide pillar 42 can move in the guide hole 101. When installing the shock absorber, first pass through the screw hole attached to the guide post 42 with a screw, pull out the entire stand 100 and attach it to the outer wall, then adjust the position of the stand 100 and tuning block 40 and thoroughly align the orientation Then, the other screws are tightened to fix the stand 100 so as to avoid mounting errors due to misalignment.

FIG. 9 and FIG. 10 show a slide rail with a buffer for drawing out, which is composed of an outer slide plate 51, an intermediate slide plate 52, an inner slide plate 53 and a shock absorber, in which an intermediate slide plate Ball tracks 54 are provided on both upper and lower sides of 52. The internal configuration of the shock absorber (refer to the attached drawing 7) is the same as that described above, except that the stand 100 has an “L” shape, and the rear end of the outer slide plate 51 is sandwiched between the rear end of the stand 100 There is a clamping part 110 for the purpose, and the stop plate 30 is connected to the slide plate 52 (both may be molded integrally). Such a drawer slide rail with a shock absorber is conveniently attached and used by the user.

In the present invention, the shock absorber is attached to the outer wall of the drawer before use, and the slide rail is attached to the drawer cavity of the desk before use. The operating principle is described below. Reference is first made to the accompanying drawings. At that time, before closing the drawer, the buffer stand 100 and the guide bar 10 move together with the drawer moving into the drawer cavity, and the convex column 25 is guided to the front end of the stop plate 30. When reaching the position of the groove 31, the convex column 25 breaks through the avoiding strip 13 at the end of the direction guide groove 12 and slides up along the guide slope of the guide groove 31 entrance of the stop plate 30, and the convex column 25 After passing over the top, it falls down into the recess of the guide groove 12, and the avoiding strip 13 is reset. When the drawer is locked, it is difficult to slide out due to vibration. Please refer to the attached drawings.

This state is a state after the drawer is pulled open. In the process of opening the drawer, the stand 100 and the guide bar 10 move outward together with the drawer, and when the convex column 25 reaches the position fixing groove 12 at the front end of the direction guide groove 11, the two-segment piston bars 21 and 22 are moved. Is pulled to the extreme position. At this time, since the resistance of the spring 24 is increased, when the drawer is subsequently pulled, the convex column 25 slides up along the slope in the guide groove 31. When the convex column 25 rises to the same height as the entrance of the guide groove 31, it slides into the position fixing groove 12 to be attached to the guide bar 10, and the stop plate 30 unlocks the restriction on the convex column 25 and the guide bar 10 and pulls out. Can be opened immediately and smoothly. Since the piston rod of the shock absorber cylinder of this new product, which is practical, is divided into two or more segments, the drawer has a larger cushion stroke.

The shock absorber and drawer slide rail of the present invention may be used separately. Before use, attach the stand 100 to the outer wall of the drawer and attach the stop plate 30 and the slide liner 200 to the inner wall of the drawer cavity. Its operating principle is the same as described above and will not be further described here.

It is the structure schematic of the buffer for drawers of this invention. It is the structure schematic of the cylinder used for the buffer for drawers of this invention. FIG. 3 is an enlarged local cross-sectional view in the direction AA in FIG. FIG. 3 is an enlarged cross-sectional view in the BB direction of FIG. It is an exploded view of the buffer stand for drawers and the tuning block (excluding the rear cover). It is an assembly drawing of a buffer stand for drawers and a tuning block (excluding a rear cover). It is the structure schematic of the buffer used by setting with the slide rail of a drawer. It is one of the use condition figures of a slide rail with a buffer for drawers. FIG. 9 is a cross-sectional view taken along the line CC in FIG. It is 2 of the use condition figure of the slide rail with a buffer for drawers.

Explanation of symbols

10 Guide bar 11 Guide groove 12 Position fixing groove 13 Position fixing groove Strip 20 Cylinder 21 Piston rod 22 Piston rod 23 Cylinder liner 24 Built-in spring 25 Convex column 26 Block 27 Spring 28 Air guide column 29 Adjustment screw 30 Stop plate 31 Guide groove 40 Tuning block 41 Screw hole 42 Guide pillar 51 Outer slide plate 52 Intermediate slide plate 53 Inner slide plate 54 Ball track 100 Stand 101 Guide hole 110 Nipping part 200 Slide liner 211 Piston ring 212 Limit groove 213 Base 221 Piston ring 222 Limit groove 223 Limit Convex point 231 Limit convex point 291 Rubber pad

Claims (10)

The drawer shock absorber includes a stand with a guide bar on the front end, a cylinder, and a stop plate. The cylinder is fixed in the middle of the stand, and a convex column is provided at the front end of the piston rod. In the guide bar, a slide groove for moving the piston rod of the cylinder is formed. On the outer surface of the guide bar, a direction guide groove to be combined with the convex column is formed. A position fixing groove is joined to the front end of the direction guide groove. The stopper plate is formed with a guide groove for pulling and pushing the convex column into the position fixing groove. The feature is that the piston rod of the cylinder is divided into two or more segments, and each segment of the piston rod is divided. A piston ring is provided at the end of the cylinder, and two segments of adjacent piston rods are integrally connected to each other, and a convex column is provided at the end of the cylinder liner and at the front end. A pull-out shock absorber characterized in that the head of the first segment of the piston rod is connected by a built-in spring penetrating from each segment in the middle of the piston rod 2. The drawer shock absorber according to claim 1, wherein the cylinder has an elliptical shape of a cylinder liner and a cross-sectional shape of each segment of the piston rod. 3. The drawer shock absorber according to claim 2, wherein the piston ring at the end of each segment of the piston rod is made of plastic, and a spring passage hole is formed in the middle of the material. Limit grooves are formed on the outer end surface of each segment of the piston rod, and a limit convex point to be combined with the limit groove in the segment of the immediately preceding piston rod is provided at the front end of each segment of the cylinder liner and the middle piston rod. The drawer shock absorber according to claim 3, wherein there is a shock absorber. 5. The convex column is fixed to a moving block, a spring is provided at the lower end thereof, and the moving block is hinged to the front end base of the first segment of a piston rod fixed to the cylinder. Drawer buffer described in 1. 6. The drawer shock absorber according to claim 5, wherein a strip for avoiding bending of the end portion is provided at a position near the end of the direction guide groove on the outer surface of the guide bar. An air guide column that communicates with the inside of the cylinder liner is provided on the convex part at the end of the cylinder liner, a rubber pad is provided in the air guide column, and an adjustment screw for controlling the air input amount is tightened at the rear end. The drawer shock absorber according to any one of claims 1 to 6, wherein the shock absorber is provided. The stand is provided with a tuning block for adjusting the orientation of the stand, screw holes are made on both the left and right sides of the tuning block, and guide pillars are molded on the inner end surface. 8. The drawer shock absorber according to claim 7, wherein a guide hole to be blended with the pillar is formed, and a dimension of the guide hole exceeds a dimension of the guide pillar. The slide rail with a shock absorber is composed of an outer slide plate, an intermediate slide plate, an inner slide plate, and a shock absorber. The shock absorber is fixed to the outer rear end of the outer slide plate, and the guide bar is attached to the front end protrusion. Including the stand, cylinder, and stop plate provided, the cylinder is fixed in the stand, and a convex column is provided at the front end of the piston rod. A slide groove is made, and a guide groove is formed on the outer surface of the guide bar to mix with the convex column. It is connected to one position fixing groove at the front end of the guide groove, and the stop plate is connected to the inner slide plate. In order to fit and pull, a guide groove for pushing the convex column into the position fixing groove is formed, and the feature is that the piston rod of the cylinder is A piston ring is provided at the end of each segment of the piston rod divided into two or more segments, and the two segments of adjacent piston rods are set together and connected to each other, and a convex column is provided at the end of the cylinder liner and at the front end. A slide rail with a buffer for drawer, wherein a head of a first segment of a provided piston rod is connected by a built-in spring penetrating from each segment in the middle of the piston rod. 10. The drawer buffer according to claim 9, wherein the stand of the shock absorber has an "L" shape, and a holding portion for holding the outer slide plate is provided at the rear end of the stand. Slide rail with instrument.