JPH11206489A - Holding device for rail for drawer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the spring-back of a drawer at the time of insertion and imprudent projection at the time of an earthquake or the like by simple constitution, to eliminate the generation of a fault or the like by using a leaf spring for a control body, to miniaturize a structure and to easily perform attachment to the drawer sliding mechanism of a cabinet or the like without spatial margin. SOLUTION: The control body 7 made of the leaf spring is arranged inside an outer rail 1 to which an inner rail 13 is slidably mounted and the first engaging part 8 of the control body 7 is turnably engaged with a fixed shaft 5 projected to the inner surface of the outer rail 1. Also, an engaging shaft 14 to be engaged with the second engaging part 10 of the control body 7 is projected to the inner rail 13. Accompanying the sliding of the inner rail 13, in a state where the engaging shaft 14 is moved in the pull-in direction of the drawer more than the fixed shaft 5, the inner rail 13 is energized in the pull-in direction of the drawer by the restoration force of the control body 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is arranged in a drawer of an office desk, a cabinet, etc., and in inserting and extracting the drawer, the drawer is securely inserted and fixed in a main body.
The object of the present invention is to prevent a rebound from being caused by the force at the time of insertion, and to prevent the drawer from easily popping out due to an earthquake or the like.

[0002]

2. Description of the Related Art Conventionally, when a drawer such as an office desk or a cabinet is inserted into a main body, if the drawer is inserted with a strong force, the drawer inserted to the final insertion position rebounds and pops out, or is vibrated by an earthquake or the like. There was a problem that the drawer accidentally popped out.

In order to prevent such a situation,
For example, as shown in Japanese Utility Model Publication No. 62-8764, there is known a structure in which a concave-convex fitting relationship is formed between an inner rail fixed to a drawer and an outer rail fixed to a main body.

[0004]

However, this conventional example prevents the drawer from rebounding and projecting in the event of an earthquake by the concave and convex fitting between the inner rail to which the drawer is connected and the outer rail fixed to the main body. It is. Therefore, if the fitting force is strong, the drawer must be inserted into the main body with a strong force at the time of insertion, and the purpose is achieved if the reliable insertion cannot be performed or the fitting force of the unevenness is weak. Things cannot be done.

[0005] In addition, if a machining error occurs in the uneven fitting portion, there is a high possibility that the engagement between the inner rail and the outer rail becomes inconvenient or the fitting force becomes inaccurate. there were. In addition, in the case of such uneven fitting, wear, deformation, etc. due to use are likely to occur,
In many cases, the effect was lost with the lapse of the use period.

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems, and it is intended to reliably prevent rebound when a drawer is inserted into a main body of a cabinet or the like, and to prevent vibration when an earthquake or the like is applied. So that the drawer does not easily come off. In addition, even if there is some error in the work, it is possible to maintain the technical effect while absorbing the error sufficiently, and always urge the drawer in the draw-in direction to securely store the drawer in the main body. To make it possible.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an inner rail in which an inner rail is slidably mounted in an outer rail having side walls raised on both sides of a substrate. A regulating member made of a leaf spring having a first engaging portion and a second engaging portion formed at both ends of a curved portion is disposed in the outer rail, and the first engaging portion of the regulating member is attached to a board of the outer rail. The pivoting member is rotatably engaged with the fixed shaft protruding from the inner surface of the regulating member, and the urging member biases the regulating body toward one of the side walls.
The second engaging portion is disposed on the substrate so as to face the sliding direction of the inner rail to the drawer / storing position, and engages with the second engaging portion as the inner rail slides in the pulling / drawing direction. The engaging shaft is protruded from the inner rail, and with the sliding of the inner rail after engagement with the second engaging portion, the engaging shaft is moved in the pulling-in direction of the drawer with respect to the fixed shaft. The restoring force enables the inner rail to be urged in the pull-in direction.

[0008] The regulating body may be formed by a Ω-shaped leaf spring.

[0009]

The present invention is constructed as described above.
In the present invention, the sliding relationship between the outer rail and the inner rail is relative, and the outer rail is fixed in a main body such as a cabinet, and the drawer is fixed to the inner rail. In some cases, the drawer is fixed to the outer rail, the inner rail is fixed in a main body such as a cabinet, and the outer rail slides according to the inner rail. The present invention includes the above two concepts. And in order to avoid complicating the description in the description of the present specification, the outer rail is fixedly arranged,
In the description, the inner rail is slid. However, even if the inner rail is fixedly disposed on a main body such as a cabinet and the outer rail is connected to the drawer and slides, there is no difference in technical effect.

The present invention is configured as described above, and in the outer rail, the restrictor made of a leaf spring rotatably engages the first engaging portion with the fixed shaft of the outer rail. . Then, the regulating body is urged toward the one side wall by the urging force of the urging member. In this state, when the inner rail is pressed and slid through the drawer in the pulling-in direction of the drawer, in the sliding process, the inner rail engages the engagement shaft projecting to the inner surface with the second engagement portion of the regulating body. Combine.

In this engaged state, when the inner rail is further slid in the pulling-in direction, the first engaging portion is rotatably engaged with the fixed shaft, so that the first engaging portion rotates around the outer periphery of the fixed shaft. It moves but does not move. In addition, since the second engagement portion approaches the first engagement portion as the inner rail slides in the pull-out / pull-in direction, the restricting body strengthens the bending of the bending portion.

The state in which the fixed shaft and the engaging shaft are arranged at a right angle to the sliding direction of the inner rail, and the state in which the engaging shaft is moved in the drawing direction of the drawer with respect to the fixed shaft. The restricting body moves the position of the curved portion from one side wall of the outer rail to the other side wall. In this state, since the engagement shaft of the inner rail is arranged on the insertion direction side of the drawer with respect to the fixed shaft of the outer rail as described above, the restricting body is moved by the restoring force of the curved portion. , The drawer is urged in the retraction direction through the drawer, and the retraction of the drawer into the main body is completed.

When a force is applied to the pull-out in the pull-out direction, and the inner rail is pulled out outward, if the force is smaller than the restoring force of the restricting body, the restricting member made of a leaf spring is used. The body urges the inner rail in the pull-in direction by the restoring force, so that the inner rail is not pulled out.

However, if a force stronger than the restoring force of the restrictor acts in the direction in which the drawer is pulled out, the inner rail is pulled in the pulling-out direction together with the fixed shaft, and the bent portion moves while increasing its degree of curvature. Then, at the stage where the engaging shaft has moved in the pulling-out direction relative to the fixed shaft, the regulating body urges the inner rail in the pulling-out direction by the restoring force. When the inner rail slides in the pull-out direction with the urging in the pull-out direction, the engagement shaft moves to the second position.
The engagement with the engaging portion is released, and the drawer can be pulled out from a main body such as a cabinet.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. (1) An outer rail is fixed to a main body such as an office desk or a cabinet. Then, it is formed into a U-shaped cross section, and one side wall (3) and the other side wall (4) are formed on both sides of the substrate (2).
Has been launched. The outer rail (1) is fixed at a position close to the leading end of the drawer in the drawing direction.
Is protruding. A first engaging portion (8) of a regulating body (7) formed by a leaf spring and provided with a curved portion (6) is rotatably engaged with the fixed shaft (5).

The first engaging portion (8) is formed by bending the distal end of the bending portion (6) in an arc shape, and forms the bending portion (6).
At the other end, a second engaging portion (10) is formed in a curved shape in an arc. Then, the first engaging portion (8) and the second engaging portion (10) are formed via a constant elastic interval (11), and the elastic interval
An elastic restoring force is generated by biasing (11) in a direction to narrow.

The first engaging portion (8) is rotatably engaged with the fixed shaft (5), and is a biasing member (12) formed by a torsion coil spring fixedly engaged with the fixed shaft (5). Is disposed between the one side wall (3) and the regulating body (7), and the regulating body (7) is urged toward the one side wall (3). The regulation by the urging member (12) is gradual, and when pressed by the inner rail (13) described later, the urging force is such that the position can be easily elastically deformed. The regulating body (7) is pressed toward one of the side walls (3).

An inner rail (13) is slidably mounted in the outer rail (1). The inner rail (13) is slidably inserted into the outer rail (1) via a retainer (not shown) or the like. An engaging shaft for engaging with the second engaging portion (10) of the regulating body (7) is provided on the distal end side in the insertion direction of the inner rail (13).
(14) is projected. And the inner rail (13)
When the second engagement portion (1) is slid in the retraction direction,
The engagement shaft (14) protrudes at a position where the engagement shaft (14) can be engaged. The inner rail (13) is a drawer (not shown).
, One end of which is fixed, and slides in the outer rail (1).

In the state where the drawer is pulled out and the inner rail (13) is drawn out in the above-structured structure, as shown in FIG. 1 and FIG. An urging member (12) such as a torsion coil spring urges the fixed shaft (5) in the direction of one of the side walls (3). From this state, slide the drawer in the retracting direction to
When (13) is slid in the outer rail (1), the engaging shaft (14) protruding from the inner rail (13) is
(7) The second engaging portion (10) is engaged. And the regulatory body
(7) is rotated in accordance with the fixed shaft (5), and is moved in a direction to reduce the elastic space (11) between the first engaging portion (8) and the second engaging portion (10).

Then, as shown in FIG.
(13) The engaging shaft (14) is fixed to the fixed shaft (5) in the longitudinal direction.
When it slides to the part located at a right angle to
(7) comes into contact with the outer rail (1) without contacting the one and other side walls (3) and (4). In this state, the elastic spacing (11) of the Ω-shaped regulating body (7) becomes minimum,
The bending portion (6) is in a state where the bending deformation is maximized and the restoring force is strongly maintained.

When the inner rail (13) is further moved from the position shown in FIG.
As shown in FIG. 3, the engaging shaft (14) moves further in the pulling-in direction than the fixed shaft (5), so that the restoring force held by the regulating body (7) in the state of FIG. The inner rail (13) is urged in the maximum retracting direction of the drawer via the joint shaft (14). With this urging force, the drawer is reliably drawn into the main body such as a cabinet at the final stage.

Further, since the inner rail (13) retains the urging force in the retracting direction by the restricting body (7) even after the insertion is completed, the drawer is strongly rebounded even if it is inserted into a main body such as a cabinet. I do not have to. Also, when a force is applied in the drawer withdrawal direction due to an earthquake or the like, if the force is within a certain limit, the inner rail (1
In 3), since a force is applied in the pulling-in direction of the drawer by the regulating body (7) via the engagement shaft (14), the drawer does not inadvertently protrude.

When pulling out the drawer inserted as described above from a main body such as a cabinet, the inner rail (13) is pulled out by hand or the like more strongly than the restoring force of the regulating body (7). As shown in FIG. 3, a line connecting the fixed shaft (5) and the engagement shaft (14) is arranged at right angles to the length direction as shown in FIG. Through the state, as shown in FIGS. 1 and 2, the engaging shaft (14) is separated from the second engaging portion (10), and the drawer can be easily pulled out.

[0024]

Since the present invention is constructed as described above, the drawer can be retracted with a very simple structure by the elastic restoring force of the restricting body, and the drawer can be rebounded when the drawer is inserted or when an earthquake occurs. Inadvertent protrusion can be prevented.

Further, since the regulating body uses a leaf spring, no trouble or the like is caused by a simple structure, and the structure is simple and small in size, and draw-out sliding of a cabinet or the like which has no extra space. It can be easily attached to the mechanism and does not cause troubles such as manufacturing and maintenance.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the relationship between a regulating body, an inner rail, and an outer rail.

FIG. 2 is a plan view showing a relationship between a regulating body, an inner rail, and an outer rail.

FIG. 3 is a plan view showing a process of moving an inner rail in a pull-out and insertion direction.

FIG. 4 is a plan view showing a final retracted state of the inner rail.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer rail 2 Substrate 3 One side wall 4 The other side wall 5 Fixed shaft 6 Bending part 7 Regulator 8 First engaging part 10 Second engaging part 12 Energizing member 13 Inner rail 14 Engaging shaft

Claims (2)

[Claims] An inner rail slidably mounted in an outer rail having side walls raised on both sides of a substrate, wherein a first engaging portion and a second engaging portion are provided at both ends of a curved portion in the outer rail. 2) A leaf spring regulating body having an engaging portion is arranged,
The first engaging portion of the restricting body is rotatably engaged with a fixed shaft protruding from the inner surface of the substrate of the outer rail, and the urging member biases the restricting body toward one of the side walls. 2
The engagement portion is disposed on the substrate in a direction in which the inner rail slides toward the drawer storage position, and the engagement engages with the second engagement portion as the inner rail slides in the pull-out direction. When the shaft protrudes from the inner rail and the inner rail slides after engagement with the second engaging portion, the engaging shaft moves in the pulling-in direction of the drawer with respect to the fixed shaft. A drawer rail holding device, characterized in that the inner rail can be biased in the pulling direction of the drawer. 2. The drawing rail holding device according to claim 1, wherein the restricting body is formed by an Ω-shaped leaf spring.