JP2003325256A - Slide rail - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slide rail by which strength is increased in a stopper projection with a simple structure even when the thickness of the slide rail is reduced, a stopping state is reliably kept, and a ball retainer is also reliably held concerning the slide rail, which is temporarily stopped at the maximum draw-out position when a drawer or equipment, etc., is drawn out from a main body, drawn-out further by a prescribed operation when the drawer or the equipment has to be taken-out by drawing from the main body for repair or inspection, and, then, mounted afterward. <P>SOLUTION: A mobile side member can be inserted/removed in the slide rail. The front side part of the stopper projection in a guide member which is arranged at the front end of the board of a member for freely and slidably holding the mobile side member is superimposed on a surface at the front end of the board of the member for freely and slidably holding the mobile side member. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention requires that when a drawer or device is pulled out from the main body side, it is temporarily stopped at the maximum draw-out position, and then the drawer or device is pulled out from the main body side for repair or inspection. The present invention relates to a slide rail that can be pulled out by a predetermined operation at a certain time and then mounted again.

[0002]

2. Description of the Related Art Conventionally, in the above slide rail, the stopper protrusion that engages with the stopper hole of the stopper member provided on the moving side member is pulled out because the moving side member is temporarily stopped at the maximum drawn-out position. The movable member is integrally formed with a guide member that acts as a guide when the movable member is mounted again. (Japanese Patent Laid-Open No. 2001-275769) In the above case, since the slide rail has a large thickness, the thickness of the mounting board of the guide member integrally formed with the stopper protrusion can also be made large, so that sufficient strength can be obtained. Was possible. That is, even if the stopper hole of the stopper member vigorously collides with the stopper protrusion, the stopper protrusion does not elastically move together with the attachment substrate because the attachment substrate has a sufficient thickness.

However, in order to ensure the engaged state of the stopper protrusion and the stopper hole, the protrusion size of the stopper protrusion cannot be made small. Therefore, when using it for a thin slide rail, the thickness of the mounting board is reduced. It must be thin. In this case, since it is not possible to give sufficient strength to the mounting board, when the stopper hole vigorously collides with the stopper projection, the stopper projection bends together with the mounting board in the direction opposite to the moving member (elastically displaces), The stopper protrusion sometimes deviated from the stopper hole, and the initial purpose (when the device or the like was pulled out from the main body side, it was temporarily stopped at the maximum pulling position) could not be sufficiently fulfilled.

On the other hand, as the fate of the slide rail, it is necessary to make the entire thickness of the slide rail as thin as possible because it is necessary to form the drawer and other outer dimensions to be large. Therefore, a load such as a drawer is not applied directly, and a gap for elastic deformation of a stopper member, which will be described later, is required between the ball retainer and the moving side member. Within the range that does not affect
It is generally formed as thin as possible.

On the other hand, in order to facilitate the mounting of the removed moving side member, the ball retainer is positioned at the tip of the rail that slidably holds the moving side member in the state where the moving side member is pulled out. However, when the thickness of the member of the ball retainer becomes thin, it is difficult to form the ball retainer holding structure in the rail thickness direction.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and has a simple structure, and even if the thickness of the slide rail becomes thin, the strength of the stopper projection can be increased and a reliable stopper can be obtained. It is an object of the present invention to provide a slide rail that can maintain the state and can reliably hold the ball retainer.

[0007]

In order to solve the above-mentioned problems, the first feature of the present invention is a slide rail in which a moving-side member can be inserted and removed, and the moving-side member is slidably held. The front side of the stopper projection of the guide member provided at the front end of the rail substrate overlaps the front end face of the rail of the rail that slidably holds the movable member.

A second feature of the present invention is a guide member attached to the board front end of a member for slidably holding the movable member in a slide rail in which the movable member can be inserted and removed. The front side of the stopper protrusion formed on the front end of the mounting board of the above overlaps with the board front end surface of the member that slidably holds the moving side member, and when the moving side member is pulled out, A retainer holding portion that elastically abuts the inner surface of the front end of the holding substrate of the ball retainer interposed between members that slidably hold the movable member is integrally formed at the rear end of the mounting substrate of the guide member. It is a thing.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 100 denotes a slide rail of the present invention, and the slide rail 100 is a rotatable member 1 that is connected to a main body side of equipment and the like, and a ball retainer 3 is rotatable with respect to the stationary member 1. Of the movable side member 2, which is slidably provided via a plurality of balls 30 held by the guide member 5, which is attached to the inner surface of the front end portion of the fixed side member 1, and the movable side member 2. It is composed of a stopper member 6 provided at a predetermined position on the inner surface.

The fixed-side member 1 is formed by bending both ends of a metal thin strip plate in an outward arc shape, and has upper and lower folds having a ball sliding groove in the inner surface longitudinal direction (sliding direction). The curved edges 11 and 11 and the substrate 12 are formed into a substantially C-shaped cross section. Then, at the rear end of the sliding direction (the end in the storage direction), the substrate 12 projects in the direction of the moving side member 2 to form the fixed-side member rear end stopper 13, and the front end in the sliding direction (end in the drawing direction). A guide member 5 is provided on the inner surface, and a retainer rear end stopper 14 projecting toward the moving member 2 is formed on the base plate 12 in front of the fixed member rear end stopper 13 by a predetermined dimension. Reference numeral 15
・ ・ Indicates mounting holes for the main unit of the equipment.

The moving side member 2 has substantially the same length as that of the fixed side member 1, and is formed by bending both ends of a short side of a metal elongated strip in an inward arc shape (in the sliding direction). ), The upper and lower bent edges 21 and 21 each having a ball sliding groove, and the substrate 22 are formed in a substantially C-shaped cross section facing the fixed member 1. Then, a gap regulating recess 25 is formed at the rear end of the substrate 22, and a stopper member 6 is provided at a predetermined position on the inner surface of the fixed member 1,
Sliding in the pull-out direction and reaching the maximum pull-out position,
The stopper member 6 is linked to the guide member 5 to stop,
After that, by releasing the stopper state of the stopper member 6, the stopper member 6 can be pulled out from the fixed side member 1 or can be stored. Reference numerals 26, ... Show a drawer or a connection hole with a device.

The ball retainer 3 is a strip-shaped metal plate,
The length of the movable member 2 is about half that of the movable member 2 and the fixed members 1 and the insertable substrates 22 and 12. U-shaped substrate 30 formed in a U shape
0 and L-shaped protrusions from both ends of the U-shaped substrate 300,
Vertical folding edge 2 of moving member 2 and fixed member 1
Vertical protruding edges 31, 3 located between 1, 21, 11, and 11
1 has a substantially U-shaped cross section, and has vertical protruding edges 31 and 31.
A plurality of balls 30 ... Are rotatably held in the sliding direction. Then, in the state where the moving member 2 reaches the maximum withdrawal position, the front end portion abuts on the guide member 5,
The movable member 2 is held by the guide member 5 even when the movable member 2 is pulled out from the fixed member 1.

The fixed member 1, the moving member 2, and the ball retainer 3 are formed as described above, and move to the inner surface of the fixed member rear end stopper 13 with the moving member 2 housed in the fixed member 1. The rear end of the side member 2 abuts, and the rear end of the ball retainer 3 abuts the retainer rear end stopper 14 of the fixed member 1 to prevent the moving member 2 from sliding in the storage direction.

From this state, when the moving member 2 is slid in the pulling direction, the balls 30 ... And the ball retainer 3 move in the pulling direction at a sliding distance of one half of the moving member 2. After a while, the stopper member 6 is linked to the guide member 5 in a state where the stopper member 6 reaches the maximum withdrawal position, the sliding of the moving side member 2 is stopped, and then the stopper state of the stopper member 6 and the guide member 5 is released. Therefore, the movable member 2 can be pulled out from the fixed member 1 or can be stored.

On the other hand, when the moving member 2 is slid in the housing direction, the moving member 2 and the ball retainer 3 slide in the housing direction due to the opposite movement to the above, and eventually,
The rear end of the movable member 2 abuts on the inner surface of the fixed member rear end stopper 13, and at the same time, the rear end of the ball retainer 3 abuts the retainer rear end stopper 14 so that the movable member 2 slides in the storage direction. Stops. The above is the basic movement of the slide rail 100.

The guide member 5 is, as shown in FIGS.
Mounting board 51 having a fitting projection 501 that fits into a fitting hole 50 formed in the front end portion of the board 12 of the fixed-side member 1.
From the front part of the mounting substrate 51 corresponding to the guide protrusions 52, 52 located between the upper and lower ball sliding grooves of the moving side member 2 and the fixed side member 1 and the stopper member 6 of the moving side member 2, The stopper protrusion 53 protruding forward in the direction of the moving member 2 and the retainer holding portion 54 located at the rear end of the mounting substrate 51 are integrally formed of a synthetic resin material.

The mounting board 51 has a guide inclined portion 511 whose thickness gradually increases from the rear of a predetermined position of the stopper protrusion 53 in the storing direction so that the stopper member 6 and the stopper protrusion 53 can be engaged with each other without any trouble. The guide slope 51
The retainer holding portion 54 is formed at the rear end of the unit 1 so as to project in the housing direction. The retainer holding portion 54 has elastic holding portions 542 and 542 each having an elastic transition gap 541 at the upper and lower ends thereof, which is slightly larger than the space between the holding substrate portions 301 and 301 of the ball retainer 3.

As shown in FIGS. 4 and 5, the stopper member 6 is made of a synthetic resin material from a connecting substrate 61, an elastic displacement portion 62, and an operating portion 63 which is connected to the front end of the elastic displacement portion 62. It is integrally formed in a V shape, and an elastic groove 610 is formed in a continuous portion of the elastic transition portion 62 and the connecting substrate 61.
Then, at the upper and lower ends of the connecting board 61, fitting protrusions 611 and 611 (shown in FIG. 2) are formed which are fitted to the respective bent edges 21 and 21 of the moving member 2 and the inner surface of the corner of the board 22. A fitting hole 601 is formed in the central portion, and the fitting member 601 is formed in the moving member 2 to prevent the attached stopper member 6 from moving in the sliding direction of the moving member 3. Fitting protrusion 27 and movement regulation protrusion 28 that are fitted to
Are formed.

The moving member 2 is the fixed member 1.
On the other hand, a stopper hole 621 with which the stopper protrusion 53 engages is formed in the elastic transition portion 62 in order to stop the moving side member 2 when it is pulled out to a predetermined position. When the moving member 2 slides, the operation portion 63 contacts the inner surface of the substrate body 302 of the ball retainer 3, the guide inclined portion 511 of the guide member 5, the inner surface of the retainer holding portion 54, etc. It is formed in a curved shape. Reference numeral 631 indicates an escape hole at the tip of the operation portion 63.

The guide member 5 and the stopper member 6 are constructed as described above, and the moving member 2 is constructed as follows.
And the fixed side member 1. First, from the tip of the fixed-side member 1 to the guide protrusion 52 of the guide member 5,
While fitting 52 into the ball sliding groove, the fitting projection 501 of the mounting substrate 51 is fitted into the fitting hole 50 of the fixed side member 1, and the front side of the stopper projection 53 is fixed to the fixed side member 1.
The substrate 52 is superposed on the inner surface of the front end thereof. In this state, the stopper protrusion 53 never moves toward the outer side of the fixed side member 1 (opposite to the movable side member 2) by the front end portion of the base plate 52 of the fixed side member 1, and the guide member 5 does not move. , Is securely attached to the front end of the moving member 2.

The stopper member 6 has one fitting projection edge 611, one fitting projection edge 611, and one bending edge 21 at the position where the fitting hole 601 of the connecting board 61 coincides with the fitting projection 27 of the moving member 2. The inner surface of the bent edge 21 and the other end of the bent edge 21 in contact with the end surface of the bent edge 21, the connecting board 61 is forcibly bent, and the other fitting protruding edge 611 of the board 22 and the bent edge 21. By fitting the fitting hole 601 to the fitting projection 27 at the corner portion, the rear end of the connecting board 61 is located in front of the movement restricting projection 28, so that movement in the sliding direction is prevented. At the same time, the fitting protrusion 611, the base plate 22, and the corners of the bent edge 21 are fitted to each other, so that the vertical deviation in mounting is eliminated, and the movable member 2 is reliably and easily mounted at a predetermined position.

When the movable member 2 having the stopper member 6 attached thereto is mounted on the fixed member 1 having the guide member 5 attached thereto, the guide member 5 of the fixed member 1 is provided.
From the side, the rear end of the gap regulating recess 25 of the moving side member 2 is brought into contact with the stopper protrusion 53, and at the same time, the rear end of the upper and lower bending edges 21, 21 is provided on the inner surface side of the guide protrusion 52, 52. The moving side member 2 while being fitted in the ball sliding groove of
Are moved in the storing direction, the retainer holding portion 54 fits the balls 30 of the ball retainer 3 held at the rear end position of the guide member 5 and the ball sliding groove of the moving side member 2 to move. The side member 2 slides with the ball retainer 3 and is completely attached to the fixed side member 1.

When the moving member 2 is further moved in the storage direction, the stopper hole 6 of the stopper member 6 is moved.
When 21 reaches the stopper protrusion 53, elasticity causes the elastic displacement portion 62 to displace toward the substrate 12 of the movable member 1 so that they are completely engaged with each other, and the movable member 2 stops at the maximum extension state. When sliding the moving member 2 from this state to the stored state, the operation portion 63 is pushed toward the substrate 22 with the fingertip, and the state where the engagement between the stopper protrusion 53 and the stopper hole 621 is released is maintained. , The moving member 2 is moved in the storage direction.

In order to obtain the function of automatically releasing the engagement between the stopper projection 53 and the stopper hole 621 when the moving member 2 is stored, the shape of the front end face of the stopper hole 621 is shown by a phantom line in FIG. As shown in FIG. 7, if the release sloped surface 623 is formed thin on the substrate 22 side, the elastic transition portion 62 is formed by the interaction between the release sloped surface 623 and the stopper projection 53 when the moving side member 2 is stored. Is the substrate 22
The stopper hole 621 and the stopper protrusion 5
The engagement of 3 is automatically released.

When the movable member 2 is pulled out from the completely housed state, the operating portion 63 of the stopper member 6 moves together with the movable member 2 and the ball retainer 3 while contacting the substrate body 302 of the ball retainer 3. Then, eventually, the operation portion 63 passes through the guide member 5 and projects toward the front of the fixed-side member 1, and the substrate 1 of the fixed-side member 1 is formed.
2, the stopper hole 621 engages with the stopper protrusion projection 53, the movement of the moving member 2 is stopped, and the moving member 2 is in the maximum extension state. At this time, the holding substrate portions 301, 301 of the ball retainer 3 that have moved in the pulling-out direction have elastic deformation gaps 541, 54.
While retracting 1, the outer ring 1 is fitted onto the retainer holding portion 54 and held at the rear end portion of the guide member 5.

From this state, when the moving side member 2 is pulled out from the fixed side member 1, the operating portion 63 is pushed toward the substrate 22 with the fingertips as described above, and the stopper protrusion 5 is pushed.
While maintaining the state where the engagement between 3 and the stopper hole 621 is released, the moving-side member 2 is moved in the pulling-out direction and pulled out from the fixed-side member 1. In the embodiment, the fixed side member 1 and the movable side member 2 constitute a slide rail, but the member to which the guide member 5 is attached slides the movable side member that is connected to the device and pulled out from the device body. Any member can be used as long as it can be held movably, and the member is not limited to the fixed member.

[0027]

According to the invention as set forth in claim 1, since the front side portion of the stopper projection is superposed on the front end surface of the substrate of the member that slidably holds the moving side member, the moving side member. Even if the stopper hole of the stopper member, which has moved vigorously with it, violently engages the stopper protrusion,
The front side of the stopper protrusion does not move outward (the direction in which the stopper hole is disengaged) due to the board front end of the member that slidably holds the movable member, and the engagement state is maintained. Hold securely. According to the invention of claim 2, in a state where the moving-side member is extracted,
The retainer holding part that elastically abuts the inner surface of the holding base of the ball retainer interposed between the moving member and the member that holds the moving member slidably holds the ball retainer in the vertical bending edge direction of the fixed member. Since the ball retainer is held in the direction of the guide protrusion of the guide member, even if the thickness of the ball retainer is thin, the retainer holding portion can be formed with a large dimension in the elastic displacement direction, and it can be securely held and elastic. With little deterioration, it can withstand many years of use.

[Brief description of drawings]

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

FIG. 2 is an enlarged sectional view taken along line AA of FIG.

FIG. 3 is a perspective view of a guide member.

FIG. 4 is a transverse cross-sectional view of the main part of the moving-side member during withdrawal.

FIG. 5 is a lateral cross-sectional view of a main part of the movable member with the moving member being pulled out to the maximum

FIG. 6 is a partially enlarged front view showing a state where a moving member is pulled out.

FIG. 7 is a sectional view taken along line BB of FIG.

[Explanation of symbols]

1 Fixed member 11 bent edge 12 substrates 100 slide rails 2 Moving side rail 21 bent edge 22 Substrate 3 ball retainer 30 balls 301 holding substrate section 5 Guide member 51 mounting board 52 Guide protrusion 53 Stopper protrusion 54 Retainer holding part

Claims (2)

[Claims] 1. A slide rail in which a moving member can be inserted and removed, wherein a front portion of a stopper projection of a guide member provided at a front end portion of a board for slidably holding the moving member is a moving member. A slide rail characterized in that it is superposed on the front end surface of the substrate of the member that slidably holds. 2. A slide rail in which a moving member can be inserted and removed, and a stopper projection formed on a front end of a mounting board of a guide member mounted on a front end portion of a board for slidably holding the moving member. Between the member that slidably holds the moving side member and the member that slidably holds the moving side member, with the front side of the member superposed on the front end surface of the substrate of the member that slidably holds the moving side member. A slide rail characterized in that a retainer holding portion elastically abutting on the inner surface of the front end of the holding substrate portion of the ball retainer interposed therein is integrally formed at the rear end of the mounting substrate of the guide member.