JPS646108Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is applicable to keyboards, etc. that are exposed from inside the body of furniture, OA equipment, etc. when in use, and are stored inside when not in use. This relates to the supporting metal fittings used.

(Prior art) Various studies have been conducted on recent office automation equipment from an ergonomics perspective. For example, in the case of keyboards, it has been found that positioning the keyboard at approximately the same height as the elbow of the key player's arm reduces fatigue. This has been confirmed. The height of such a board is usually lower than that of a normal desk top. For example, according to the JIS standard, some desks have a top surface of 70 cm, but in this case, it is preferable that the height of the board is about 5 cm lower, depending on the height of the chair.

By the way, if the support plate surface on which the keyboard is placed is configured according to the optimal use of the keyboard, etc.,
The support plate surface must be made lower by at least the thickness of the keyboard body and the surface of the keyboard. Therefore, the support plate cannot be used as a desk or the like, and must have a dedicated structure. Furthermore, the surface of the keyboard cannot be used when the keyboard is not in use. Rather, the support plate also takes up space and cannot be used for other purposes, making it unnecessary.

(Problems to be Solved by the Invention) In view of the above-mentioned circumstances, the inventor of the present invention has experimented with various metal fittings for moving the support plate etc. in and out from the desk or the main body of the device. According to this, it can be easily expected that such a loading/unloading fitting is constituted by a member that slides horizontally from the inside of the main body to the outside. According to such a slide member, in order to place the keyboard on the support plate and pull it out at an appropriate board height, an appropriate access space is required between the support plate and the top plate surface of the main body. Therefore, the top plate surface of the main body must be made higher or the support plate surface must be made lower than necessary. Therefore, it has been found that a mechanism using only such a slide member is not practical.

We also experimented with configuring the keyboard to be movable up and down via an arm pivoted inside the main body. In this case, since a large rotation stroke of the arm is required, the internal storage space has to be enlarged.

Furthermore, each member must be provided with a locking mechanism to hold it in each position. The lock mechanism is as follows: Utility Model Application No. 60-77426
As shown in Japanese Patent No. 1121122, it had to be constructed separately from the above-mentioned mechanisms, which not only led to an increase in weight but also led to an increase in the size of the mechanism.

However, the present invention was developed based on the above experiment, and can be stored inside the main body and used as a drawer by using a slide member and a link member attached to the slide member inside the main body. The object of the present invention is to provide a support fitting for a keyboard, etc., which can be locked by using the rise of a link plate.

(Means for Solving the Problems) The support metal fitting according to the present invention for solving the above object is a metal fitting that allows a keyboard, etc. to be freely moved in and out from the inside of the main body to the front, and is installed inside the main body. a slide member that moves the keyboard or the like forward from the main body; a link member attached to the slide member that allows the keyboard or the like to be raised and lowered from a position in front of the main body; and a lock member that engages with the slide member, and the lock member is pushed up using the rise of the link plate of the link member and is always pushed downward by a spring.

(Operation of the invention) When retracting, the keyboard and the like are pulled in by the slide member provided inside the main body, and at the same time are brought close to the inside of the main body by the link member.

When pulling out the drawer, the slide member is used to slide the drawer from the inside to the outside. Thereafter, the keyboard and the like are lifted upward via the link member. In this case, the locking member is engaged with the sliding portion of the sliding member by being pushed up by the rise of the link plate of the linking member, thereby positioning the keyboard or the like.

(Embodiment of the invention) The drawings show an embodiment of the support metal fitting for a keyboard, etc. according to the invention, and Fig. 1 is a perspective view of the same with the support stand for the keyboard etc. pulled out, and Fig. 2 shows the main parts thereof. A side view, FIG. 3 is a front view of the main part, and FIG. 4 is a side view of the main part showing the retracted state. The main body is OA
A rack top for equipment is illustrated.

The top plate 1 of the main body has a support base 4 on which a keyboard, etc. is placed, by means of left and right slide members 2, 2 and left and right link members 3, 3 attached thereto.
The slide members 2, 2 are provided with lock members 5, 5 which are engaged as the link members 3, 3 rise.

To be more specific, the slide members 2, 2 can be slid inward and outward by rails 21, 21 fixedly installed inside the top plate 1, and rollers 22, 23 rolling on the rails 21, 21. It is configured. The rails 21, 21 have U-shaped openings facing each other,
On the proximal end side, a protrusion 24 for storing and positioning is formed on the running surface, and a closing part 2 is formed by bending the upper end piece.
5, and a closing portion 26 formed by bending the running surface is formed on the distal end side. Each closing part 25, 26
The radius of curvature of the rollers 22 and 23 matches that of the arc surfaces of the rollers 22 and 23. In this case, the closed part 2 of the rail 21
6, a notch groove 27 is formed.

Furthermore, movable plates 28, 28 are pivotally attached to the rollers 22, 23 at positions on the U-shaped opening side of the rail 21, and move while keeping the rollers 22, 23 apart by a predetermined distance. The moving plates 28, 28 have rollers 22, 2
It is suspended downward from the shaft attachment part of No.3.

The link member 3 is attached via the movable plate 28. That is, the movable plate 28 has one end 31a, 3 of each of the first and second link plates 31, 32.
2a is pivotally connected by shafts 33 and 34, and the first other end 31
b is pivotally attached to the support plate 41 of the support stand 4 via a shaft 35. A shaft 36 is attached to the second other end 32b so as to be slidable in the long groove 42 of the support plate 41.
A locking pawl member 43 is connected to the shaft 36 via the shaft 36 and the shaft 35 at the first other end 31b is tensioned by a spring 37. Further, one end 32a of the second link plate is provided with a guide regulation groove 38 cut out around the end face, and a pin 39 fixed to the movable plate 28 is engaged in the guide regulation groove 38.

Further, the locking pawl member 43 is provided with a spring 46 that engages the sawtooth-shaped locking pawl 44 at the tip with the locking portion 45 of the support plate 41 and pulls it in the occlusal direction. Regarding the locking claw member 43,
Lever 4 of the operating lever 47 pivoted to the support plate 41
8 is on standby so that the occlusion can be released.

Furthermore, the lock member 5 is provided on the movable plate 28 so as to be slidable up and down. The above lock member 5
In this case, the stopper 51 is connected to the pins 52, 53 and the guide hole 5.
4 and 55 so that it can be slid up and down. The stopper 51 is configured so that the pin 52 can be pushed upward by the end surface of the second link plate 32, and both ends 56a, 56b of the wound spring 56 are connected downward to the shafts 33, 34. It is configured so that it can be locked and pushed down. The stopper 51 is configured so that its upper end 51a can be inserted into the cutout groove 27 at the front position.

According to the above configuration, in the retracted position, as shown in FIG.
3 is positioned on the protrusion 24 behind the rails 21, 21, and at the same time, the support base 4 is housed by being located at a lower level slightly apart from the top plate 1 of the link members 3, 3. . The link members 3, 3 are positioned by regulating the groove ends of the guide regulating groove 38 of the second link plate 32 with a pin 39.

When drawing out the drawer, when the support base 4 is pulled forward, the rollers 22 and 23 are first moved forward beyond the protrusion 24, and the roller 23 comes into contact with the closing portion 26 in front of the rail and stops moving. In this case, the moving plate 28 is located in front of the rail, and the support stand 4 is located in the lower front.

Next, when the support base 4 is pulled upward, the first and second link plates 31, 32 are moved from their one ends 31a, 32a to the shafts 33, 34 of the movable plate 28, as shown in FIGS. Since it rotates around the fulcrum,
The support base 4 of the other ends 31b and 32b of the link plates is lifted upward. When rising, the shaft 36 is pulled up by the spring 37 at the other end 32b of the second link plate 32, and at the same time the long groove 42
Slide along. In this case, the locking claw member 4
3, the locking pawl 44 is connected to the locking portion 45 by the spring 46.
occlusion and becomes locked downward. Locking in the upward direction is achieved by the pin 39 coming into contact with the other groove end of the guide regulating groove 38. In particular, as the second link plate 32 rotates, its end face pushes up the pin 52 of the locking member 5, so each pin 52, 53 slides upward along the guide holes 54, 55. The stopper 51 is now in the notch groove 2.
7 and locks the slide member 2.

When retracting the storage, first, when the operation lever 47 is rotated, the lever 48 moves the locking pawl 44 away from the engagement part 45 against the spring 46, so that the support base 4 can be pushed down against the spring 37. . As the support base 4 descends, the second link plate 3
2 is lowered, the stopper 51 moves from the notched groove 27 to the outside of the rail according to the spring 56. As a result, the slide member 2 can be slid rearward from a position below the support base 4 and retracted.

According to the above embodiment, the second link plate 3
2, the lock member 5 can be raised to lock the slide member 2, and the lock structure can be extremely simplified. Moreover, the moving plate 2 of the slide member 2
By attaching the link member 3 and the lock member 5 to 8, the structure can be simplified and smooth sliding movement can be obtained. Further, the guide regulating groove 38 and the pin 39 regulate the lowering position and the ascending position of the support base 4, and the locking claw member 43 and the locking part 45 restrict the lowering at the drawn-out position, and the locking member 5 as well as link plates 31, 32
Since the positions are related to each other, each position regulation can be performed accurately with few deviations.

Although the above-mentioned slide member 2 is made up of a rail 21 and rollers 22, 23, other structures such as long grooves and guide pieces can be modified as long as the slide member 2 is slidable. Further, although the first and second link plates 31 and 32 are illustrated as the link member 3, it goes without saying that this does not preclude embodiments of other link structures. Furthermore, although a pin guide structure is shown as the locking member 5 that interlocks with the second link plate 32, it can also be designed to interlock with the first link plate 31 or other guide structures.

(Effects of the invention) As explained above, the invention provides the following effects.

When lifting or lowering a keyboard, etc. using a link member from a state where the slide member is pulled out from inside to the front, by attaching a lock member to the slide member and interlocking with the link member, it is possible to lock the keyboard at accurate timing. This eliminates the need for a special lock structure.

In particular, it is possible to position and lock the slide member by using the rise of the link plate, and when retracting, it can be retreated downward using a spring, so there is no need for any release operation other than locking. I was able to. Therefore, it is possible to prevent damage and accidents caused by operation errors or forgetting operations.

Since the support fitting for the keyboard etc. is composed of a slide member, a link member attached to the slide member, and a lock member provided on the slide member,
The number of parts is small, and the structure of the support stand for keyboards etc. can be simplified.

[Brief explanation of drawings]

The drawings show an embodiment of the support fixture for a keyboard, etc. according to the present invention, and FIG. 1 is a perspective view of the same in a state where the support base for the keyboard, etc. is pulled out, FIG. 2 is a side view of the same essential parts, and FIG. 3 4 is a front view of the main part, and FIG. 4 is a side view of the main part showing the retracted state. DESCRIPTION OF SYMBOLS 1... Top plate, 2... Slide member, 3... Link member, 4... Support stand, 5... Lock member, 21
...Rail, 22, 23...Roller, 27...Notch groove, 28...Moving plate, 31, 32...Link plate, 33-36...Shaft, 41...Support plate, 4
3...Latching claw member, 47...Operation lever, 51...
...Stotsupa.

Claims (1)

[Scope of utility model registration request] A metal fitting that allows a keyboard, etc. to be moved in and out from the inside of the main body to the front, and includes a slide member that is attached to the inside of the main body and moves the keyboard, etc. from the main body to the front, and a metal fitting that is attached to the slide member to move the keyboard, etc. a link member that can be raised and lowered at a front position of the main body; and a link member that is provided on the slide member and is pushed up by the link plate as the link plate of the link member rises, and is engaged with the slide member and springs downward. A support fitting for keyboards, etc., consisting of a locking member that is constantly pressed down.