JPH1189654A - Sliding rail actuation control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately control a movement of respective stages by fixing the other non-drawing two-stage sliding rails in a stationary condition by a press of a restraining body when an optional single stage of sliding rails arranged in three stages is opened and drawn. SOLUTION: Actuation control parts 30a and 30b press a restraining body 31a downward by rotating a contact part 20a by pushing an engaging piece to engage an end surface of a cutout part 40 of a sliding rail 11 to move rightward when the uppermost sliding rail 11 is pulled out, and a restraining body 31b on its tip presses/advances an allowable surface 22b of a contact part 20b of an adjacent intermediate stage sliding rail 12, and fixes the intermediate stage sliding rail 12 in a stationary condition. A restraining body 31c is pressed/ moved downward, and moves a restraining body 31d in the downward direction, and a lower stage sliding rail 13 is made unextractable by restraining the rotation of a contact part 20c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide rail,
In particular, the present invention relates to a device for controlling a slide rail which is a multi-stage slide rail used for an office file box or a multi-stage drawer, and which operates a stop device on another slide rail when one stage is pulled out.

A slide rail is widely used in an office file box (cabinet), a multistage drawer used at home, a drawer of a precision machine, a moving part of machinery, and the like. In many cases, slide rails are not used in drawers for home use. However, drawers using slide rails have the advantage of being able to easily draw out (extend) or store (push back) the drawer without applying a large force, since the drawer has low resistance. When the drawer contains a lot of objects and heavy weight, it is difficult to open and close the drawer without using a slide rail because of the large resistance. In particular, slide rails are often used in high-end office file boxes / cabinet and office equipment. Also, in precision machinery and various industrial machines, it is necessary to move a heavy machine tool with a predetermined width while carrying it, and the slide rail is a necessity, and precision machinery and the like that require precision when moving It is an indispensable device for the reciprocating movement of.

[0003] Multi-stage file box cabinets are conventionally equipped with stoppers so that when any one stage is first pulled out and extended, the other stages are fixed and immobile. This means that the center of gravity moved to the front side for a considerable weight when the drawer of any other stage than the one packed stage was opened and extended to the near side. For example, if there is no operation control device on the other stage,
If two steps are pulled out, there is a risk that the center of gravity of the entire cabinet moves forward and falls forward at that point. In particular, cabinets and the like contain heavy documents, so it is absolutely necessary to avoid the possibility of falling. Previously equipped stoppers have a structure in which claw-shaped locking tools are locked by latches, etc., and there is no certainty in operation, and it is considered that metal fragility and plastic fatigue due to aging may occur. Was done. Therefore, there has been a demand for a device capable of structurally controlling the operation. However, there has been a drawback that if equipment for braking operation is added, the price of the slide rail becomes expensive. There has been a demand for a device having a simple structure and more reliably controlling the movement of each stage than the conventional locking stopper.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a more reliable operation than a conventional slide rail operation control device.
The present invention relates to a structure of a slide rail operation braking device which can be manufactured relatively inexpensively.

[0005]

In order to achieve the above object, a slide rail operation control device according to the present invention comprises a slide rail in which operation control devices provided at ends of the slide rail are arranged in three stages. When any one of the two stages is open and distracted, the other two stages of the non-extended slide rails are fixed to a stationary state by pressing the stopper,
More specifically, the rotating contact portions provided at the ends of the adjacent slide rails, the locking portions that press the outer edges of the corresponding contact portions to control the rotation, and the corresponding contact portions The slide rail has a cut-out portion cut into the side surface.

The rotating contact portion has a thick rectangular shape including a joining surface that contacts the restraining body, an allowable surface having a short distance from the shaft, a locking surface that enters the slide rail, and a contact piece. With the slide rail being pulled out and pushed back, the slide rail is pushed by the end face of the slide rail, and rotates around an axis fixed to the end of the slide rail,
One end rotates and enters the notch cut out on the side surface of the slide rail, contacts the slide rail, and stops the slide rail in a stationary state by being pressed non-rotatably. is there. Further, the operation control unit is formed of a restricting body made of a thick rectangular plate for controlling the rotation of the contact part, and is configured to be connected to the restricting body of the adjacent slide rail operation control unit via a rod. Then, when the slide rail is opened and extended, the contact portion rotates and pushes and moves the stopper, and the stopper of the adjacent slide rail connected via the rod is pressed and the contact portion Locks the slide rail in a stationary state because it cannot rotate. Further, the slide rail with the cut-out portion is provided with one end of the rotating abutting portion entering the vicinity of the innermost end in a pushed-back state opposite to the extending end of the slide rail, and slides. The locking notch for holding the rail in a stationary state is cut away on the side surface.

[0007]

The slide rail operation control device of the above construction comprises a rotating contact portion provided at an end of the slide rail, an operation control portion for restricting the rotation, and a slide rail having a notch. When one of the three stages of drawers is pulled out (extended and extended), the contact portions are pivoted to move and press the stoppers of the other operation control units of the other stages (the remaining two stages). I do. As a result, the other two-stage contact portions cannot rotate, and at that time, at the notch portion of the slide rail, the end of the contact portion abuts on the slide rail in a state where it does not rotate. It is locked in a locked state where it cannot be pulled out.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of a slide rail operation control device according to the present invention will be described below in detail with reference to an embodiment shown in the drawings. FIG. 1 is a plan view of a slide rail operation control device according to the present invention. The slide rail operation control device 10 includes:
It comprises contact portions 20a-d, operation control portions 30a-d, and cutout portions 40a-d. The slide rail 1 is a motion transmitting means mounted on a drawer such as a cabinet.
Usually, an inner rail having a U-shaped cross section is mounted on an outer rail via a ball (bearing) and a ball retainer, and is configured to extend in a longitudinal direction. One of the inner rail or outer rail is mounted on the fixed part cabinet wall, and the other is mounted on the moving part (drawer) for use. In this embodiment, three slide rails are installed in parallel, and the apparatus is compatible with a cabinet kit having three drawers.

As mentioned above, a multi-stage file box
When one stage of the cabinet is pulled out, the other stage must be fixed and immobile. According to the present invention, in a configuration in which three slide rails are arranged in three stages by a device described later, when any one stage of the slide rails is opened and extended, the remaining two stages of unextended slide rails are extended. Both of them are configured to be fixed in a stationary state by pressing the stopper at the same time. Even if an arbitrary one of the slide rails is any of the upper, middle, and lower tiers, the other two are fixed.

Each of the contact portions 20a to 20d is a rotatable square plate having a thickness which is partially cut out and has a thickness. The engagement piece 27, which is a notch end, enters the notch portion 40 of the slide rail to move the slide rail. It becomes a stopper for stopping and fixing. The contact part 20
The slide rail is rotated in response to each operation of pulling out and pushing back the slide rail with the shaft 21 provided at the center as a rotation axis (center). The contact portions 20a to 20d are urged by a spring or a coil spring having elasticity in rotation in a direction in which the slide rail is stored. When the slide rail is pulled out, the end surface of the cutout portion of the slide rail comes into contact with the inner wall of the engagement piece 28, and a rotational force is applied to rotate the slide rail in response to the slide rail being pulled out. Also, when storing the slide rail,
The end of the slide rail presses and abuts on the contact piece 28, which is a notch end, and rotates. The structure of the side surfaces of the contact portions 20a to 20d is as follows.
Only one of the four vertical side surfaces of the square plate has a shorter distance from the center than the other surfaces, and forms an allowable surface 22 having a shorter distance from the axis. When a stop body of an operation control unit described later presses and advances on the rotated allowable surface, the contact portion cannot rotate with the slide rail stored therein. The joining surface 23 is a vertical side surface that has not been shaved, and rotates and responds to press the operation control unit 30a or 30b when the slide rail is pulled out, and presses the pressing bodies 31a to 31d of the connected operation control unit. Then, the contact portions 20a to 20d are fixed.

The operation control units 30a and 30b are paired with two rectangular stoppers 31a and 31b or another stoppers 31c and 31d of adjacent slide rail controllers and connected by rods 33a and 33b. This is a configuration that moves up and down in response to the insertion and removal of the slide rail. The stopper 31 is a thick rectangular plate that presses against the vertical side surface 23 of the contact part 20 to stop the rotation of the contact part.

More specifically, for example, when the uppermost slide rail 11 is pulled out, the registration and abutment portion 20a is an engagement piece with which the end face of the notch 40 of the slide rail that moves to the right engages. 27 is pressed to rotate the contact portion 20a. The upper end of the stopper 31a was joined to the allowable surface 22 of the contact portion 20a. When the contact portion rotates, the joined vertical side surface rotates from the short allowable surface 22 to the joint surface 23, so that the joined restricting body 31a is pressed downward and moves. The stopping body 31a is integrally connected to the stopping body 31b by a rod 33a to form an operation control unit 30a. The operation control unit 30a moves downward due to the downward movement of the restraining body 31a, and the stopping body 31b at the tip of the movement control unit 30a presses and advances on the allowable surface 22b of the contact part 20b of the adjacent slide rail. As a result, the middle slide rail cannot be pulled out because the contact portion cannot rotate and is fixed in a stationary state. Also,
In the state where the middle slide rail is pulled out, even if the upper slide rail is to be pulled out, the contact portion is pressed upward by the restraining body 31a, so that it cannot rotate and cannot be pulled out.

Notch 40 cut into slide rail
Is an elongated notch provided at the base opposite to the extending end of the slide rail, and is provided with an abutment of the contact portions 20a to 20d near the end which is the deepest part when the slide rail is pushed back. The space into which the joint pieces 27a to 27d enter is cut on the side surface. The slide rail can return to the innermost part without being disturbed by the engagement piece entering the notch,
And it is a structure which cannot be pulled out unless the engagement piece rotates.

The middle slide rail can be pulled out.
This is the case where the upper and lower slide rails are returned to the innermost position. When the middle slide rail 12 is pulled out, the contact portions 20b and 20c rotate simultaneously in opposite directions, and the operation control unit is moved up and down. It will be pressed and moved. When the middle slide rail is pulled out to the right, the abutment portion 20b rotates counterclockwise so that the joint surface 23b is on the upper side, and the stopper 31b is pressed and moved upward. Further, the contact portion 20c rotates clockwise, and the joining surface 23c faces downward and is pressed and moved toward the stopper 31c. Operation control unit 30
As a moves upward as a whole, the stopping body 31a at the upper end moves upward to stop the rotation of the contact portion 20a and to stop the movement of the upper slide rail. In addition, when the operation control unit 30b moves downward, the restraining body 31d at the lower end moves downward to stop the rotation of the contact part 20c, so that the lower slide rail cannot be pulled out.

Similarly, when the lower stage is pulled out, it means that the upper middle slide rail is in the state of returning to the innermost portion, and the contact portion 20d is rotated counterclockwise by pulling out the lower slide rail. Then, as in the case of the movement of the contact portion 20b, the joining surface 23d faces upward,
Press and move d upward. Thereby, the operation control unit 30
bh, and the upper end stopper 31c is brought into contact with the contact portion 20c.
And stops the rotation of the contact portion, so that the middle slide rail is fixed in a stationary state.

The middle slide rail operation control device includes:
A pin 50 for controlling the rotation of the contact portions 20a and 20b so as not to rotate more than necessary is mounted. this is,
The pin is a pin for suppressing the engagement piece of the contact portion from rotating to a position where it does not enter the cutout portion cut out on the side surface of the slide rail when the contact portion is in the pulled-out state of the slide rail. The shape of the pin is not limited to this shape as long as the rotation can be controlled.

[0017]

Since the operation control apparatus for a slide rail according to the present invention has the structure described above in detail, the following effects are obtained. Since the operation is not controlled by locking with a latch or the like, the operation is reliable, and there is no aging. The movement of each step can be controlled more accurately than the conventional locking stopper with a structure that ensures movement. (1) When any one of the slide rails arranged in three stages is openly extended, the other two stages of unextended slide rails can be reliably fixed in a stationary state. (2) The contact portion is configured to rotate, and the operation is reliable. (3) The engagement piece, which is one end of the contact portion, enters the cutout on the side surface of the slide rail and stops the slide rail, so that the operation is reliable. In addition, when the restraining body enters the allowable surface, the contact portion cannot rotate and the control can be easily performed. (4) Since the stopping body is connected via the rod, the operation of the slide rails in a plurality of stages can be arbitrarily controlled. (5) One end of the contact portion enters while the slide rail is pushed back and is kept in a stationary state, so that it is possible to reliably stop the slide rail.

[Brief description of the drawings]

FIG. 1 is an overall plan view of a slide rail operation control device according to the present invention.

FIG. 2 is a perspective view of a contact portion.

FIG. 3 is a side view of a slide rail.

FIG. 4 is a sectional view of a slide rail.

FIG. 5 is a plan view of a pin.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Slide rail operation control apparatus 11 Upper slide rail 12 Middle slide rail 13 Lower slide rail 20a-d Contact part 21 Rotating shaft 22 Allowable surface 23 Joining surface 27 Engagement piece 28 Contact piece 30a, 30b Operation control part 31a-d Stopper 33a, 33b Rod 40 Notch 50 Pin

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[Procedure amendment]

[Submission date] May 18, 1998

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of the drawings]

FIG. 1 is an overall plan view of a slide rail operation control device according to the present invention.

FIG. 2 is a perspective view of a contact portion.

FIG. 3 is a side view of a slide rail.

FIG. 4 is a sectional view of a slide rail.

DESCRIPTION OF SYMBOLS 10 Slide rail operation control device 11 Upper slide rail 12 Middle slide rail 13 Lower slide rail 20a-d Contact part 21 Rotary shaft 22 Allowable surface 23 Joining surface 27 Engagement piece 28 Contact piece 30a, 30b Operation Control parts 31a-d Stoppers 33a, 33b Rod 40 Notch part 50 Pin

Claims (5)

[Claims] 1. An operation control device provided at an end of a slide rail, wherein when one of the slide rails arranged in three stages is openly extended, the other two stages which are not extended are provided. Slide rail operation control device, characterized in that the slide rail is fixed in a stationary state by pressing of the stopping body 2. The operation control device of the slide rail,
Rotating contact portions provided at the ends of adjacent slide rails, an operation control portion that presses the outer edge of the corresponding contact portion to control rotation, and a cutout portion that stores the corresponding contact portion on a side surface 2. The slide rail operation control device according to claim 1, wherein the slide rail is formed by cutting a slide rail. 3. The rotating abutting portion has a thick positive surface including a joining surface that abuts the restraining body, an allowable surface having a short distance from the shaft, an engaging piece that enters the slide rail, and an abutting piece. It is made of a square plate, and it is pushed by the slide rail end face by the operation of pulling out and pushing back the slide rail, and rotates around the axis fixed to the end of the slide rail,
One end rotates to enter the notch cut out on the side surface of the slide rail, contacts the slide rail, and stops the slide rail in a stationary state by being pressed non-rotatably. The slide rail operation control device according to claim 1, wherein: 4. The operation control section comprises a restricting body made of a thick rectangular plate for controlling the rotation of the contact section, and connects the restricting bodies of the adjacent slide rail operation control sections via a rod. When the slide rail is opened and extended, the abutment part rotates to push and move the restraining body, and the restraining body of the adjacent slide rail connected via the rod is pressed. The slide rail operation control device according to claim 1, wherein the slide rail is fixed in a stationary state so that the contact portion cannot rotate. 5. The cut-out slide rail having a cut-out portion is provided with a notch in the rotating contact portion near an end portion which is the deepest portion in a pushed-back state opposite to an extended end portion of the slide rail. A slide rail operation control device characterized in that a notch for cutting the side into which the engagement piece enters and holds the slide rail in a stationary state is cut off on a side surface.