JP2002034689A - Sliding rail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sliding rail with a sequential function which can be manufactured with a simple structure at a low cost, lasts long, and is excellent in terms of stability in the sliding rail with a sequential function that an inner member slides forward with respect to a middle member after the middle member slides forward and stops with respect to an outer member while the inner member is housed in the middle member. SOLUTION: The sliding rail with a sequential function is provided with parts 72, 72 for controlling to sway sideways, which prevent an inner member 3 from swaying sideways while the inner member 3 is housed in a middle member 2, between the middle member 2 and the inner member 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an inner member that is housed in an intermediate member and stops after the intermediate member slides forward with respect to the outer member, and then the inner member slides forward with respect to the intermediate member. The present invention relates to a slide rail configured to move and having a so-called sequential function.

[0002]

2. Description of the Related Art As shown in FIG. 11, an outer member (fixed member) 1a, an intermediate member 2a slidably held by the outer member 1a, and an inner member (moving) slidably held by the intermediate member 2a In the slide rail composed of the side members 3a, the devices connected to the inner member 1a from the state in which the intermediate member 2a is completely stored in the outer member 1a and the inner member 1a is completely stored in the intermediate member 2a. When pulled out forward, only the inner member 3a slides with the intermediate member 2a stopped, or the intermediate member 2a slides with the inner member 3a housed, or the inner member 3a
The intermediate member 2a and the intermediate member 2a slide at the same time or are not constant.

That is, when heavy equipment is mounted on the inner member 3a and only the inner member 3a slides forward and protrudes in a state where the intermediate member 2a is stopped, the outer member 1a and the intermediate member 2a are interposed. The interposed balls 4a are stopped between the intermediate member 2a and the outer member 1a, so that the load of the devices is applied to the inner members 3a projecting forward from the balls 4a. A large moment acts on the front portion of the outer member 1a with the ball 4a at the front end as a fulcrum, and the load of the equipment is most applied to the front portion of the outer member (the plurality of balls 4a...). The intermediate member 2a slides with respect to the outer member 1a in a state where the load is not supported as a whole). Strain on the front may occur in over 1a, each member 2a, 3a there is a problem that does not slide smoothly.

In order to solve this problem, fitting recesses 6a, 6a are formed at the rear end of the intermediate member 2a as shown in FIG.
An inner member holding member 7a made of an elastic material formed with a groove is provided, and correspondingly, fitting protrusions 8a, 8a elastically fitted into the fitting recesses 6a, 6a are provided at the rear end of the inner member 3a. By forming, inner member 3
A slide rail has been provided in which the fitting protrusions 8a, 8a are elastically fitted into the fitting recesses 6a, 6a in a state in which a is completely housed in the intermediate member 2a.

That is, since the fitting projections 8a, 8a are fitted to the fitting recesses 6a, 6a, the inner member 3a
Is slid forward, the intermediate member 2a slides forward with respect to the outer member 1a in a state where the inner member 3a is housed in the intermediate member 2a. And
From the state where the intermediate member 2a slides to the predetermined position in front of the outer member 1a and stops, the inner member 3a is further pulled out to change the fitting state of the fitting protrusions 8a, 8a and the fitting recesses 6a, 6a. Release, then middle member 2
a function of sequentially moving the inner member 3a with respect to "a" (sequential function).

[0006]

However, according to the above configuration, the intermediate member 2a is attached to the inner member 3a.
.. interposed between the intermediate member 2a and the inner member 3a in the state in which the inner member 3a is located at a substantially intermediate portion in the front-rear direction between the inner member 3a and the intermediate member 2a. In the rear part of the intermediate member 2a, the separation (lateral vibration) between them in the left-right direction could not be completely prevented. Further, the lateral width of the equipment to which the inner member 3a is attached varies due to a processing error or the like. Therefore, in an actual use state, the inner member 3a is
a, a slight displacement (lateral deflection) occurs in the width direction (lateral direction) of the equipment between the inner member 3a and the intermediate member 2a, and the fitting recesses 6a, 6a
There is a problem that the margin of engagement between the fitting projections 8a and 8a in the left-right direction is reduced, and when used for a long period of time, the sequential function is not sufficiently exhibited due to wear and the like.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides a slide rail having a sequential function with excellent stability, which can be manufactured at a low cost with a simple structure and which can withstand long-term use. As an issue.

[0008]

Means for Solving the Problems In order to solve the above-mentioned problems, the first means of the present invention is configured as follows.
With the inner member stored in the middle member,
After the intermediate member slides forward with respect to the outer member and stops, the inner member slides forward with respect to the intermediate member.
In the state where the inner member is housed in the intermediate rail, a lateral vibration restricting portion for preventing lateral vibration of the inner member is provided between the intermediate member and the inner member.

Next, the present invention is configured as a second means, in a state in which the inner member is housed in the intermediate member, the intermediate member slides forward with respect to the outer member and stops. In a slide rail configured to slide forward with respect to the intermediate member, in a state where the inner member is housed in the intermediate rail, a lateral vibration restricting portion for preventing lateral vibration of the inner member is provided on the inner surface of the intermediate member. It is provided between the concave groove and the ball sliding concave groove of the inner member.

Next, the present invention is configured as a third means, in a state where the inner member is housed in the intermediate member, the intermediate member slides forward with respect to the outer member and stops. In the slide rail provided with a moving device between the intermediate member and the inner member so that the inner member slides forward with respect to the intermediate member, in the state where the inner member is housed in the intermediate member, the inner member is prevented from swaying. A lateral shake restricting unit is provided close to the moving device.

[0011] Next, the present invention is configured as a fourth means, in a state where the inner member is housed in the intermediate member, the intermediate member slides forward with respect to the outer member, and stops. In a slide rail provided with a moving device between the intermediate member and the inner member so that the inner member slides forward with respect to the intermediate member, in a state where the inner member is housed in the intermediate member, a side rail that prevents the inner member from swaying. A deflection control portion is provided near the moving device sequentially, and the deflection control portion is located between the inner surface sliding groove of the intermediate member and the ball sliding groove of the inner member.

Next, the present invention is configured as a fifth means. In the state where the inner member is housed in the intermediate member, the intermediate member slides forward with respect to the outer member and stops. In the slide rail in which the moving member is sequentially provided between the intermediate member and the inner member so that the inner member slides forward with respect to the intermediate member, the inner member holding portion of the moving device and the inner member are stored in the intermediate rail. In addition, a lateral vibration restricting portion for preventing lateral vibration of the inner member is integrally formed of a synthetic resin material.

[0013] Next, the present invention is configured as a sixth means, in a state where the inner member is housed in the intermediate member, the intermediate member slides forward with respect to the outer member and stops. In the slide rail in which the moving member is sequentially provided between the intermediate member and the inner member so that the inner member slides forward with respect to the intermediate member, the inner member holding portion of the moving device and the inner member are stored in the intermediate rail. A lateral vibration restricting portion for preventing lateral vibration of the inner member is integrally formed of a synthetic resin material, and the lateral vibration restricting portion is provided with an inner surface sliding concave groove of the intermediate member and a ball sliding concave groove of the inner member. It is located between.

[0014]

Hereinafter, the present invention will be described with reference to the accompanying drawings. 1 to 4, reference numeral 100 denotes a slide rail of the present invention. The slide rail 100 includes an outer member 1, a ball 40 rotatably held by the outer member 1, and outer retainers 4, 4. The intermediate member 2 is slidably held by the intermediate member 2 and the balls 50... Rotatably held by the inner retainers 5 and 5 on the intermediate member 2. It is composed of an inner member 3.

The outer member 1 is a substantially channel type which is connected to a fixed member and is used as a fixed member.
And the intermediate member 2 connected to the upper and lower ends of the substrate 10.
Upper and lower ball regulating protruding edges 11, 1 in which the distance between each other increases in the directions.
1 and upper and lower protruding edges 12, 12 of substantially horizontal L-shape facing each other and connected to the upper and lower ball regulating protruding edges 11, 11. At the rear end of the substrate 10, a storage stopper 13 projecting toward the intermediate member 2 is formed. The rear end portion is formed so as to protrude inward, thereby forming retainer stoppers 14... For regulating the range of movement of the outer retainer 4 in the front-rear direction.
Further, connection holes 15 with the fixing member are formed at predetermined intervals in the front-rear direction of the substrate 10 of the outer member 1.

The intermediate member 2 is formed into a substantially channel shape by a substrate 20 having a central portion in the height direction projecting substantially toward the inner member 3 toward the inner member 3 and upper and lower edges 21, 21 connected to upper and lower ends of the substrate 20. And on the outer surfaces of the upper and lower edges 21, 21,
.., Which are rotatably held by the outer ball retainer 4, are formed with outer surface sliding concave grooves 22, 22. The balls 50 are rotatably held by the inner ball retainer 5 on the inner surfaces of the upper and lower edges 21, 21. , The inner surface sliding concave groove 23,
23 are formed.

When the inner member 3 is housed in the intermediate member 2, the rear end of the inner member 3 contacts the rear end of the substrate 20, and together with the inner member 3,
An intermediate member rear end stopper 24 for accommodating the intermediate member 2 in the outer member 1 is formed so as to protrude toward the inner member 3, and the front end of the base plate 20 is provided when the inner member 3 extends most with respect to the intermediate member 2. An inner retainer front end stopper 25 with which the front end of the inner retainer 5 abuts is formed.
1 and the upper and lower protruding edges 12,
An outer retainer rear end stopper 26 is formed to contact the rear end of the outer retainer 4 when the outermost member extends most from the outer member 1. Further, a shock absorbing member 241 for providing a shock absorber and a silencing function is attached to the intermediate member rear end stopper 24.

The inner member 3 includes a belt-like substrate 30.
And upper and lower edges 31, 31 connected to the upper and lower ends of the substrate 30
The upper and lower edges 31, 31 have inner retainers 5
Are held slidably between the inner surface sliding grooves 23 of the intermediate member 2. When the inner member 3 is accommodated in the intermediate member 2, the rear end of the substrate 30 of the inner member 3 abuts on the intermediate member rear end stopper 24 (buffer member 241) of the intermediate member 2. Abuts against the rear end of the inner retainer 5 when it extends the most with respect to the intermediate member 2 (at this time, the front end of the inner retainer 5 is
The inner retainer 5 is stopped by contacting the inner retainer front end stopper 25. 6) An inner member rear end stopper 33 (shown in FIG. 6) is formed to protrude toward the inner retainer 5 side. A moving device 6 (described later) is sequentially provided between the rear end portions of the intermediate member 2 and the inner member 3 configured as described above.

The outer retainer 4 is formed in a rod shape from a synthetic resin material, and rotatably holds the balls 40 at the front and rear ends in the sliding direction.
In the most extended state, the intermediate member 2 is located at a position supporting the front and rear end portions of the intermediate member 2 remaining in the outer member 1. The inner retainer 5 includes a substrate 51 whose central portion in the height direction projects substantially in a mountain shape toward the inner member 3, and a substrate 5.
The upper and lower edges 52, 52 are connected to the upper and lower ends of the upper and lower ends of the ball 50 at predetermined positions in the sliding direction of the upper and lower edges 52, 52.
... are rotatably held.

As shown in FIGS. 5 to 10, the sequential moving device 6 includes a synthetic resin inner member holding member 7 provided at the rear end of the intermediate member 2 and a ball sliding groove 32 of the inner member 3. , 32 at the rear end. The inner member holding member 7 has a mounting board 71 having a shape along the inner surface of the board 20 of the intermediate member 2, and is provided continuously at the upper and lower ends of the mounting board 71. It is located between the ball sliding grooves 32 of the inner member 3 and prevents the inner member 3 from laterally oscillating with respect to the intermediate member 2, and has a tapered distal end portion in the front-rear direction and has a columnar lateral oscillating regulating portion 72. , 72;
72, an inner member holding portion 75 continuously provided behind
75, and a mounting portion 77 provided on the rear surface side of the mounting substrate 71 and provided on the rear surface thereof with a fitting projection 76 that fits into a mounting hole 201 formed in the substrate 20 of the intermediate member 2.

The inner member holding portions 75, 75
Are elastic legs 73, 73 having appropriate elasticity in the vertical direction.
And the holding projections 7, which are provided in the support recesses 61, in a state where the inner member 3 is completely housed in the intermediate member 2, and which is provided continuously with the rear ends of the elastic legs 73, 73.
4 and 74.

The present invention is configured as described above, and operates as follows. The middle member 2 is housed in the outer member 1 and the inner member 3 is housed in the middle member 2 (equipment and drawers are housed, as shown in FIG. 6), and the inner member 3 is pulled forward. When done
Holding protrusions 74, 74 of inner member holding portions 7, 75
However, since the inner member 3 is elastically fitted into the supporting concave portions 61 of the inner member 3, the inner member 3 slides forward while holding the intermediate member 2.

The outer retainer rear end stoppers 26, 26 of the intermediate member 2 abut against the rear end of the outer ball retainer 4 and the outer retainer stopper 14, so that the intermediate member 2 slides with respect to the outer member 1. Stops. Further, when the inner member 3 is pulled out, the holding protrusions 7 of the inner member holding portions 75
The support recesses 61, 61 of the inner member 3 are extended so as to spread out between the elastic members 73, 73 between the members 4, 74.
Is moved forward, and the supporting recesses 61, 61 and the holding projection 7 are moved.
4 and 74 are released from the elastically fitted state, and the inner member 3 is removed.
Slides forward with respect to the intermediate member 2. Eventually, the front end of the inner retainer 5 comes into contact with the inner retainer front end stopper 25 of the intermediate member 2, and at the same time, the inner member rear end stopper 33 of the inner member 3 comes into contact with the rear end of the inner retainer 5 to slide the inner member 3. Stops, and the inner member 3 (equipment, drawer, etc.) is completely pulled out.

Next, from this state, the inner member 3
Is stored (devices, drawers, etc.), the intermediate member 2 and the inner member 3 move sequentially or simultaneously rearward (at this time, with the inner member 3 being pulled out most, the outer member 1 is pulled out). And middle member 2
The ball 40 interposed in the first half of the outer member 1 supports the second half of the intermediate member 2,
Since it moves rearward, a large moment between the intermediate member 2 and the outer member 1 also causes a distortion in the front part of the outer member 1 even if the members 2 and 3 do not slide in the order described above. Does not occur, so that the sliding of the members 2 and 3 is not affected. In the meantime, the intermediate member rear end stopper 24 (buffer member 241) of the intermediate member 2 comes into contact with the stopper 13 when the outer member 1 is stored and stops. Next, inner member 3
The rear end portions of the ball sliding concave grooves 32, 32
2 and 72, and the inner member holding portions 75 and 75
Is moved rearward while spreading, and in a state where the holding projections 74, 74 are elastically fitted into the support recesses 61, 61, the inner member rear end stopper 33 of the inner member 3 is moved to the intermediate member rear end stopper 24 (buffer). The inner member 3 stops sliding by contacting the member 241), and the outer member 1
Is completely housed (the state shown in FIG. 6 in which the devices, drawers and the like are completely housed).

In the embodiment, the inner member holding portions 75, 75 and the lateral deflection restricting portions 72, 72 are integrally formed of a synthetic resin to form the inner member holding member 7. 75 may be provided separately from the lateral shake restricting portions 72, 72.
May be formed integrally with the front side. Further, although the inner member holding portions 75, 75 are positioned outside the inner member 3, they are projected rearward from the substrate 71,
The inner member 3 may be located inside, and the inner member holding member 7 and the support recesses 61 may be formed at the front ends of the intermediate member 2 and the inner member 3. In other words, the basic gist of the present invention is to provide a lateral vibration regulating portion between the intermediate member and the inner member, to prevent lateral vibration of the inner member in a state where the inner member is stored in the intermediate member, and The sequential function is made more effective and excellent in stability by sequentially bringing the restricting portion close to the moving device.

[0026]

According to the first aspect of the present invention, in a state where the inner member is housed in the intermediate rail, a lateral vibration restricting portion for preventing lateral vibration of the inner member is provided between the intermediate member and the inner member. Therefore, it is possible to provide a slide rail having a sequential function with excellent stability that can withstand long-term use.

According to the second aspect of the present invention, the lateral runout restricting portion is provided between the inner surface sliding concave groove of the intermediate member and the ball sliding concave groove of the inner member. In addition, lateral runout can be reliably prevented. According to the third aspect of the present invention, since the lateral shake restricting portions are sequentially provided close to the moving device, the stability of the sequential function is further improved. According to the invention as set forth in claim 4, the lateral vibration restricting portion is provided close to the sequential moving device, and the lateral vibration restricting portion is further provided with the inner surface sliding concave groove of the intermediate member and the ball sliding concave groove of the inner member. Since it is located between the grooves, the lateral function is reliably prevented, so that the stability of the sequential function is further improved.

According to the fifth aspect of the present invention, the inner member holding portion of the sequential moving device and the lateral vibration restricting portion for preventing the lateral vibration of the inner member in a state where the inner member is accommodated in the intermediate rail are combined. Since it is integrally formed of a resin material, it can be manufactured at low cost and its attachment is easy. According to the invention as set forth in claim 6, the inner member holding portion of the moving device and the lateral vibration restricting portion for preventing the lateral vibration of the inner member while the inner member is housed in the intermediate rail are made of a synthetic resin material. In addition to being formed integrally, the lateral runout restricting portion is located between the inner surface sliding concave groove of the intermediate member and the ball sliding concave groove of the inner member. Vibration can be reliably prevented, and the stability of the sequential function is further improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a front view illustrating the basic structure of the slide rail according to the present invention.

FIG. 3 is a cross-sectional view of a central portion illustrating a basic structure of a slide rail according to the present invention.

FIG. 4 is a sectional view of a rear end portion for explaining a basic structure of the slide rail of the present invention.

FIG. 5 is a sectional view of a main part of the slide rail of the present invention.

FIG. 6 is a sectional view taken along line CC of FIG. 5;

FIG. 7 is a sectional view corresponding to FIG. 6 at an initial stage of drawing.

FIG. 8 is a cross-sectional view corresponding to FIG.

FIG. 9 is a sectional view taken along line DD of FIG. 8;

FIG. 10 is a perspective view of an inner member holding member.

FIG. 11 is a cross-sectional view illustrating the basic structure of a conventional slide rail.

FIG. 12 is a cross-sectional view illustrating a conventional sequential moving device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer member 100 Slide rail 2 Intermediate member 20 Substrate 23, 23 Inner surface sliding concave groove 3 Inner member 32, 32 Ball sliding concave groove 4, 4, Outer ball retainer 40 Ball 5 Inner ball retainer 50 Ball 6 Sequential moving device 7 Inner Member holding member 72, 72 Lateral run-out control unit 75, 75 Inner member holding unit

Claims (6)

[Claims] In a state where the inner member is housed in the intermediate member, the intermediate member slides forward with respect to the outer member and stops, and then the inner member slides forward with respect to the intermediate member. A slide rail, characterized in that, in a state where the inner member is housed in the intermediate rail, a lateral vibration restricting portion for preventing lateral vibration of the inner member is provided between the intermediate member and the inner member. 2. In a state where the inner member is housed in the intermediate member, the intermediate member slides forward with respect to the outer member and stops, and then the inner member slides forward with respect to the intermediate member. In the slide rail, in a state where the inner member is housed in the intermediate rail, a lateral vibration restricting portion for preventing lateral vibration of the inner member is located between the inner surface sliding groove of the intermediate member and the ball sliding groove of the inner member. A slide rail characterized by being provided. 3. In a state where the inner member is housed in the intermediate member, the intermediate member slides forward with respect to the outer member and stops, and then the inner member and the intermediate member slide so as to slide forward with respect to the intermediate member. In the slide rail in which the moving device is sequentially provided between the inner members, in a state in which the inner member is housed in the intermediate member, the lateral vibration restricting portion that prevents the lateral vibration of the inner member approaches the sequential moving device. A slide rail characterized by being provided. 4. When the inner member is housed in the intermediate member and the intermediate member slides forward with respect to the outer member and stops, the inner member and the intermediate member slide forward with respect to the intermediate member. In a slide rail in which a moving device is sequentially provided between the inner members, a lateral vibration restricting portion for preventing lateral vibration of the inner member is provided in proximity to the sequential moving device in a state where the inner member is housed in the intermediate member. The slide rail is characterized in that the lateral deflection restricting portion is located between the inner surface sliding groove of the intermediate member and the ball sliding groove of the inner member. 5. In a state where the inner member is housed in the intermediate member, the intermediate member slides forward with respect to the outer member and stops, and then the inner member and the intermediate member slide forward with respect to the intermediate member. In a slide rail in which a moving device is sequentially provided between inner members, an inner member holding portion of the sequentially moving device and a lateral vibration restricting portion for preventing lateral vibration of the inner member in a state where the inner member is stored in the intermediate rail. A slide rail which is integrally formed of a synthetic resin material. 6. In a state where the inner member is housed in the intermediate member, the intermediate member slides forward with respect to the outer member and stops, and then the inner member and the intermediate member slide forward with respect to the intermediate member. In a slide rail in which a moving device is sequentially provided between inner members, an inner member holding portion of the sequentially moving device and a lateral vibration restricting portion for preventing lateral vibration of the inner member in a state where the inner member is stored in the intermediate rail. A slide rail formed integrally with a synthetic resin material, wherein the lateral runout restricting portion is located between an inner surface sliding groove of the intermediate member and a ball sliding groove of the inner member.