JPH11225830A - Keyboard drawing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a keyboard drawing device which allows an easy and smooth job of drawing support out of a rack frame, and which ensures that the support is held locked in a drawn position and a stored position. SOLUTION: This device has a rack frame 4A and keyboard support 3A drawably stored in the rack frame 4A, and the support 3A is fitted with first and second rollers 19, 20 and provided with a locking member 18 preventing drop when the support 3A is drawn out. A second guide rail 12 guiding the sliding motion of the roller 20 and a first guide rail 11 guiding the sliding motion of the roller 19 are mounted in two steps on the rack frame 4A, and a stopper 14 for engagement with the locking member 18 is attached to the rack frame 4A. The guide rail 11 is horizontally extended, and the guide rail 12 has its front part extended backward and downward while being inclined.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyboard pull-out device for placing a keyboard of a computer so that the keyboard can be pulled out, and more particularly to a tilting state when a receiving table stored in a horizontal state with respect to a shelf frame is used. The present invention relates to a keyboard pull-out device that is easy and smooth to pull out, and that can reliably hold a receiving table with respect to a shelf frame in both use and storage states.

[0002]

2. Description of the Related Art A computer keyboard is used by being mounted on an OA disk or an OA rack together with a computer main body and a display, but is stored in a shelf frame when not used in order to make effective use of space. It is desirable to use it by pulling it out when using it, especially when mounting a plurality of computer devices in multiple stages such as a server rack, the upper keyboard is pulled out for easy operation. In this case, it is desirable to be inclined.

[0003] The keyboard used in this manner is easy and smooth to pull out the cradle stored in a horizontal state with respect to the shelf frame to an inclined state in use. Although it is necessary to securely hold the cradle with respect to the shelf frame even in this state, there has been no effective means for achieving these requirements with a simple structure and at low cost.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above-mentioned problems of the prior art, and has as its main object to make it easy and smooth to pull out a cradle from a shelf frame. The rack is securely locked and held so that the pulled-out cradle does not easily fall off the shelf frame, and the storage cradle is securely engaged so that the stored cradle is not easily moved in the pull-out direction within the shelf frame. An object of the present invention is to provide an inexpensive keyboard drawer that can be held and held.

[0005]

According to the present invention, there is provided a keyboard pull-out device for mounting a keyboard mounted on an OA disk or an OA rack, and a keyboard mounted thereon and capable of being pulled out from the shelf frame. The receiving base has a second roller mounted on a rear end side of both sides of the receiving base, a first roller mounted on the front of the receiving roller, and a locking member for preventing falling off at the time of pulling out. A member is provided, and a second guide rail for slidingly guiding the second roller and a first guide rail for slidingly guiding the first roller are mounted on the shelf frame in two upper and lower stages. At the same time, a stopper for engaging with the locking member is provided, the first guide rail provided at the lower stage is extended in a horizontal state, and the second guide rail provided at the upper stage has a front portion toward a rear side. Extends downward Comprising a structure in which.

According to the above construction, each of the front and rear rollers slides while being supported at two points along the upper and lower guide rails, so that the pull-out operation can be performed extremely smoothly and the front end of the cradle is gripped. It can be used in an inclined state when pulled out to the front, and can be stored when pushed forward, so operation is easy, and since the structure is simple, it is durable and can be provided at low cost It is.

Further, by extending the second guide rail disposed in the upper stage in a downwardly inclined state, it is possible to surely hold and hold the accommodated pedestal so as not to easily move in the shelf frame. The cradle that is drawn out in an inclined manner is easily retained from the shelf frame because the locking member is locked by the stopper and each roller is restrained by the inner wall surface of each guide rail at the pull-out position. Can be reliably locked and held so as not to fall off.

[0008] In particular, the second guide rail is formed so that a rear portion thereof is slightly inclined above a horizontal state,
If a structure is provided in which the second roller is locked at the end position of the rear portion to prevent the second roller from dropping out, the second roller is locked and held at the set position, so that the locking is more reliably prevented. .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described with reference to FIGS. 1 to 5. FIG. As shown in the figure, a receiving base 3 on which the keyboard 2 is mounted and a shelf frame 4 for accommodating the receiving base 3 on which the keyboard 2 is mounted can be pulled out. The display 5 is mounted on a bottom surface of a shelf 7 of an OA rack 6 on which the display 5 is placed.

As shown in FIG. 2, the shelf frame 4 has a shelf frame body 8 formed in a rectangular frame shape with an open front surface.
On the inner surfaces of both side plates 9 and 10, two upper and lower sliding guide members are mounted so as to face left and right, and the sliding guide members are provided with a first guide rail 11 disposed on the lower side in a horizontal state and a downward facing guide rail. A second guide rail 12 is disposed on the upper side in an inclined state, and each of the guide rails 11 and 12 is formed in a lip groove shape whose inner surface side is opened.
The mounting plate 15 of the stopper 14 is mounted on the inner surface of the.

As will be described in detail later with reference to FIGS. 4 and 5, the shelf frame 4 includes a shelf frame 4A according to the first embodiment and a shelf frame 4B according to the second embodiment. 3A is used in combination with the cradle 3A shown in FIG. 3B, and the shelf frame 4B is used in combination with the cradle 3B shown in FIG. 3B.

The cradle 3 has, as a basic configuration common to the cradle 3A and the cradle 3B, a mounting plate 16 provided at a front end thereof with a locking member 17 for preventing the mounted keyboard 2 from sliding down. A locking member 18 which is locked to the stopper 14 of the shelf frame 4 in a pulled-out state at the rear end of the mounting plate 16.
A sliding rotating member such as a roller bearing is mounted on both sides of the mounting plate 16 in a left-right facing manner.

In the case of the cradle 3A, the first and second rollers 19 and 20 arranged in a horizontal state along the side surface of the mounting plate 16 are directly mounted on the mounting plate 16 in the case of the cradle 3A. ,
In the case of the cradle 3B, it is mounted via a mounting plate 21 provided on the side surface of the mounting plate 16, but the first roller 19 is located at a position along the side surface of the mounting plate 16 and the second roller 20 is The mounting plate 16 is mounted at a position above the side surface of the mounting plate 16 with a step.

The relationship between the cradle 3 and the shelf frame 4 is such that the mounting state of the cradle 3A on the shelf frame 4 in the first embodiment is as shown in FIG. Figure 5
The first roller 19 is inserted into the first guide rail 11 and the second roller 2 is inserted into the second guide rail 12 as shown in FIG.
0 is fitted, and the locking member 18 is brought into contact with the stopper 14 when the receiving base 3A or the receiving base 3B is pulled out. Desirably, one of the locking member 18 and the stopper 14 is made of rubber or the like. The buffer member 21 is provided to alleviate the impact at the time of contact.

The difference between the first embodiment and the second embodiment is that, in the first embodiment using the receiving table 3A and the shelf frame 4A, the first roller 19 slides horizontally. The first guide rail 11 to be guided is completed in the middle of the shelf frame body 8,
A second guide rail 12 that slides and guides the second roller 20 in a downwardly inclined state extends to a rear end side thereof.
The rear end of the guide rail 12 is slightly inclined upward with the lower end positioned slightly above the extension of the first roller 19, and the end is slightly inclined upward. An engaging portion 22 for dropping the second roller 20 is provided.

In the case of the second embodiment using the receiving table 3B and the shelf frame 4B, the first guide rail 11 extends to the rear end side of the shelf frame main body 8, and the second guide rail 12 The rear end of the first guide rail 11 is formed with a lower end position slightly above the rear end side of the first guide rail 11 with a slightly inclined upward end. An engaging portion 22 to be dropped is provided.

The keyboard drawer according to the present invention which can adopt the first and second embodiments is, for example, a shelf 7.
OA rack 6 by screwing top plate 8 to
The first roller 19 slides between the pull-out position H1 and the set position S1 in the first guide rail 11 when the receiving table 3 on which the keyboard 2 is mounted on the mounting plate 16 is put in and out. Then, the second roller 20 slides and rotates within the second guide rail 12 between the pull-out position H2 and the set position S2.

Therefore, the rollers 19 and 20 which are spaced apart at a predetermined interval within the moving range can be smoothly moved, and the receiving tray 3 pulled out from the shelf frame 4 easily does not fall off. It is necessary to stop and hold, and to securely hold and hold the stored cradle 3 in the shelf frame 4 so as not to move easily in the pulling-out direction. Rails 11, 12
The arrangement relationship shown in FIG. 4 and FIG. 5 is an example of a desirable form in consideration of setting the arrangement and the inclination angle of the arrangement.

In terms of the positional relationship, the guide rails 1 for individually slidingly guiding the rollers 19 and 20 of the receiving table 3 are shown.
1 and 12 are arranged in two upper and lower stages, and the lower guide rail 11
Is extended horizontally, and the upper guide rail 1
2 is extended downward so that the stored receiving table 3 can be reliably locked and held so as not to move easily in the shelf frame 4. When the roller 20 is dropped down by providing the locking portion 22, the roller 20 is locked and held at the set position S2, and the stopper 20 is more reliably prevented from falling off.

Further, in the receiving table 3 which is drawn out in an inclined manner, a locking member 18 provided at the rear end abuts against a stopper 14 to be locked and held. , H2, each guide rail 11, 12
Are respectively restrained by the inner wall surfaces of the
Can be reliably locked and held so as not to easily fall off the device.

Each of the rollers 1 separated at a constant interval
In the state in which the separation distance is maintained, the slides 9 and 20 slide while supporting two points along the respective guide rails 11 and 12 whose trajectories are set in advance, so that the pull-out operation is performed very smoothly. At the same time, the roller 20 can be pulled out with the front end of the cradle 3 slightly depressed downward and the roller 20 detached from the locking portion 22, and the cradle 3 is pushed forward while slightly lowering the front end thereof. Therefore, the operation is simple, and the structure is simple, so that it can be provided with durability and at low cost.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of an OA rack in which a keyboard drawer of the present invention is used.

FIG. 2 is a perspective view, partially cut away, of a shelf frame, which is a main component of the keyboard drawer of the present invention.

FIG. 3 is a perspective view of a cradle which is a main component of the keyboard drawer of the present invention.

FIG. 4 is a longitudinal sectional view showing a first embodiment of a keyboard drawer device of the present invention.

FIG. 5 is a longitudinal sectional view showing a second embodiment of the keyboard drawer of the present invention.

[Explanation of symbols]

 Reference Signs List 1 drawer device 2 keyboard 3, 3A, 3B receiving stand 4, 4A, 4B shelf frame 5 display 6 OA rack 7 shelf 8 shelf frame body 9, 10 side plate 11 (first) guide rail 12 (second) guide Rail 13 Top plate 14 Stopper 15 Mounting plate 16 Mounting plate 17, 18 Locking member 19 (First) roller 20 (Second) roller 21 Buffer member 22 Locking portion

Claims (2)

[Claims] 1. A shelf frame attached to an OA disk or an OA rack, and a receiving table on which a keyboard is placed so as to be able to be pulled out from the shelf frame, wherein the receiving table has rear sides. A second roller is mounted on the end side, a first roller is mounted in front of the second roller, and a locking member is provided for preventing the second roller from dropping out when pulled out. And a first guide rail that slides and guides the first roller is mounted in two upper and lower stages, and a stopper that engages with the locking member is provided. The first guide rail extends in a horizontal state, and the second guide rail provided in an upper stage has a front portion extending in a downwardly inclined state toward a rear side. 2. The second guide rail is formed in such a manner that a rear portion thereof is slightly inclined upward from a horizontal state, and the second roller is dropped at a terminal side of the rear portion in a state of being dropped. The keyboard pull-out device according to claim 1, further comprising a locking portion.