JP4308998B2 - Opening and closing device for canopy in device retractable desk - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an opening / closing device for a canopy in a device retractable desk which can store a device such as a display of a personal computer under a top plate of a desk.
[0002]
[Prior art]
For example, as shown in FIG. 8, a rectangular opening (103) is provided in the top plate (102) of the desk (101) and the opening (103) is opened and closed as shown in FIG. A possible canopy (104) is pivotally attached, and is further connected to lifting means (not shown) using a motor or the like installed below the top plate (102) as a drive source, with a storage position indicated by an imaginary line and a solid line A lifting platform (105) that can be moved to the ascending position shown is provided, and a device (A) such as a personal computer display is installed on the lifting platform (105), and the lower surface of the canopy (104) protrudes upward. There is provided a push-up member (106) capable of abutting against.
[0003]
The push-up member (106) is configured to open the canopy (104) when the upper end (106a) pushes up the lower surface of the canopy (104) in conjunction with the elevation of the lifting platform (105).
[0004]
[Problems to be solved by the invention]
However, in the above-described conventional device, when the lifting platform (105) is in the raised position, parts such as the push-up member (106) are exposed on the top plate (102), and thus there are the following problems. . (a) The push-up member (106) gets in the way, and the installation location of the device (A) such as a display is restricted.
(b) It has a protruding feeling and looks bad.
(c) A wiring cord or the like may be caught by the push-up member (106), and the push-up member (106) may be damaged.
(d) During the opening operation of the canopy (104), the lower surface of the canopy (104) and the push-up member (106) rub against each other, so that the painted surface may be damaged.
[0005]
In view of the above-mentioned problems of the conventional technology, the present invention has a conventional technology that prevents parts from being exposed on the top surface of the top plate when the lifting platform is in the raised position. It is an object of the present invention to provide a canopy opening / closing device in a device retractable desk which has solved all the above problems.
[0006]
[Means for Solving the Problems]
According to the present invention, the above problem is solved as follows.
(1) An opening is provided in the top of the desk, and a canopy pivotally attached to the rear of the opening of the desk and capable of opening and closing the opening; a storage position stored below the top; A canopy opening / closing device in a device retractable desk provided with a lifting platform movable to a rising position facing an opening, wherein the lifting device is pivotally attached to a lower position of the canopy in the desk, and the lifting platform is moved from the storage position. When ascending, a pivot link having an upper arm portion that is pushed upward by the rear upper surface of the elevator and pivoted upward, and a lower link of the canopy and a pivot link are coupled to each other. And an upper arm portion of the pivot link that moves upward to move the canopy in a direction to open the canopy.
[0007]
(2) In the above item (1), a pressing portion that prevents downward rotation of the upper arm portion of the rotation link by slidingly contacting the front edge of the connection link is provided at the rear portion of the lifting platform.
[0008]
(3) In the above item (1) or (2), when the pivot link is lowered to the retracted position, the pivot link is brought into contact with the lower surface of the rear portion of the elevator platform to rotate the pivot link downward. The lower arm portion is provided.
[0009]
(4) In any one of the above items (1) to (3), a protective material having excellent wear resistance and low sliding resistance is provided on the holding portion of the lifting platform.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a desk (1) including an embodiment of the present invention will be described with reference to the drawings.
In the following description, the lower left side in FIG. 1 is “front”, and the upper right side is “rear”.
[0011]
On both sides of the left and right side plates (2), both sides of the top plate (3) are placed, and at the center of the rear portion of the top plate (3), a rectangular opening (4) having a desired size in plan view is provided. It has been. On the upper part of the rear plate (5) installed on the rear edge of the left and right side plates (2), a canopy (6) for opening and closing the opening (4) is a pair of left and right having a left and right hinge shaft (7a). The hinge (7) is pivotally mounted so as to be opened and closed.
[0012]
As shown in FIG. 3, the canopy (6) has a closed position where the opening (4) is closed and aligned with the surface of the top plate (3), and the canopy (6) stands up and opens as shown in FIGS. A pair of left and right arm portions (6a) project on the lower surface of the hinge (7) at a predetermined distance from the hinge shaft (7a). It is installed.
[0013]
Below the top plate (3), there is provided an elevating means (8) for converting the rotation of the motor into a vertical motion using a motor or the like as a drive source. The elevating means (8) has a pair of vertical directions. A lifting platform (9) supported so as to be movable up and down is connected by a guide rail (not shown) facing the direction. The elevating means (8) is a known technique using a screw rod and a nut as a mechanism for converting the rotation of the motor into a vertical motion, and is schematically shown only in FIG. Is omitted.
[0014]
The elevator (9) is a place where equipment (A) such as a personal computer display is installed, and the storage position stored below the top plate (3) by the elevator (8) as shown in FIG. As shown in FIGS. 1 and 2, it can be moved up and down to a raised position fitted in the opening (4) so as to be aligned with the surface of the top plate (3).
[0015]
A pair of left and right protective members (10) are attached to a pressing portion (9a) formed at the rear end of the lifting platform (9). The protective material (10) is substantially U-shaped in a side view, and is formed of a metal plate material that has excellent wear resistance and low sliding resistance.
[0016]
(11) is a pair of left and right pivot links pivoted by left and right shafts (12) on brackets (not shown) provided on the left and right of the lower part of the rear plate (5). The upper arm (11a) can be brought into contact with the rear upper surface of the lifting platform (9) through a predetermined amount and can be contacted with the lower rear surface of the lifting platform (9). It has a lower arm portion (11b) extending a predetermined amount, and is substantially L-shaped in side view. The rotating link (11) can be pivotally attached to a bracket (not shown) provided on the lifting means (8) as necessary.
[0017]
When the lifting platform (9) is lifted from the storage position, the upper arm portion (11a) is pushed onto the upper surface of the pressing portion (9a) of the lifting platform (9) via the upper piece (10a) of the protective material (10). By being moved, it is turned upward. Further, as shown in FIG. 7, the lower arm portion (11b) is pivoted downward by contacting the lower surface of the pressing portion (9a), and is directed upward by a predetermined angle or more of the pivot link (9). The rotation is restricted.
[0018]
The distal end portion of the upper arm portion (11a) of the rotating link (11) and the distal end portion of the arm portion (6a) of the canopy (6) are connected by a connecting link (13) facing vertically, and the canopy (6) The rotating link (11), the connecting link (13), and the rear plate (5) form a four-bar link mechanism. The lower end portion of the connecting link (13) and the upper arm portion (11a) are rotatably connected by a horizontal axis (14), and the upper end portion of the connecting link (13) and the canopy (6). The arm portion (6a) is rotatably connected by a left-right axis (15).
[0019]
In conjunction with the raising and lowering of the lifting platform (9), the rotating link (11) is rotated clockwise or counterclockwise so that the canopy (6) is opened and closed via the connecting link (13). It has become.
[0020]
When the canopy (6) is in the closed position, the connecting link (13) is inclined so that the lower end is positioned forward of the upper end, and when the canopy (6) is in the open position, the connecting link (13) is substantially vertically oriented. It comes to face. That is, when the rotation link (11) rotates clockwise, the connection link (13) moves upward while the lower end portion moves rearward.
[0021]
The holding part (9a) of the lifting platform (9) slides in contact with the front edge (13a) of the connecting link (13) via the protective material (10), thereby moving the connecting link (13) substantially vertically. While maintaining the state, the rotation link (11) is prevented from moving in the counterclockwise direction, that is, the downward rotation of the upper arm portion (11a), and the canopy (6) is held in the open position.
[0022]
Next, the operation of one embodiment of the present invention will be described.
FIG. 3 shows a state where the lifting platform (9) is in the retracted position. In this state, the personal computer display (A) installed on the elevator (9) is stored below the top plate (3), and the opening (4) is closed by the canopy (6). Thus, the top plate (3) and the canopy (6) are flat, and their entire upper surface can be used as a work space.
[0023]
When the elevator (9) is raised from the retracted position by the elevator (8), the upper arm (11a) is pushed up by the rear upper surface of the elevator (9), so that the rotation link (11) is as shown in FIG. As shown in FIG. 4, the connecting link (13) moves upward with its lower end moving backward, and pushes up the canopy (6).
[0024]
When the upper arm portion (11a) of the pivot link (11) is detached from the rear upper surface of the lifting platform (9) as the lifting platform (9) rises, as shown in FIG. The holding part (9a) is in contact with the front edge (13a) of the connecting link (13) oriented in the vertical direction through the protective material (10), and slides along the front edge (13a). 6) Hold in the open position. As shown in FIGS. 1 and 2, when the lifting platform (9) moves to the raised position and fits in the opening (4), the lifting platform (9) and the surface of the top plate (2) become flat. At the same time, the device (A) appears on the top plate (3) from the opening (4).
[0025]
In this state, the parts such as the push-up member are not exposed on the top plate (3) as in the prior art, so that a cord or the like is not caught on the exposed parts. Moreover, there is no protrusion feeling and it looks good.
[0026]
When the elevator (9) is lowered from the raised position by the elevator (8), the device (A) is stored below the top plate (3). When the lifting platform (9) is lowered, the pressing portion (9a) slides downward along the front edge (13a) of the lifting link (13) via the protective material (10). As shown in FIG. 6, when the rear lower surface of the lifting platform (9) is in contact with the lower arm portion (11b), the rotation link (11) is rotated downward, via the connection link (13). The canopy (6) is forcibly rotated to the closed position.
[0027]
As shown in FIG. 7, when the lifting platform (9) is in the retracted position, the lower arm portion (11b) contacts the lower edge of the rear end of the lifting platform (9) and the rotation link (11) Since the upward rotation is restricted, the canopy (6) cannot be opened from the outside. Therefore, theft of the device (A) can be prevented.
[0028]
【The invention's effect】
According to the present invention, the following effects can be achieved.
(a) According to the first aspect of the present invention, when the lifting platform is in the raised position, parts such as the push-up member are not exposed on the top plate as in the prior art, and the exposed parts are damaged. There is no, and it looks good. Moreover, the installation space of the devices on the lifting platform can be widened.
[0029]
Further, when the top plate is opened, the top plate and other parts are not rubbed, so that the painted surface is not damaged.
[0030]
(b) According to the invention described in claim 2, when the lifting platform is in the raised position, the canopy is prevented from moving in the closing direction. Can be prevented.
[0031]
(c) According to the invention described in claim 3, when the elevator platform is lowered, the canopy is forcibly closed via the rotating link and the connecting link, so there is no possibility of forgetting to close the canopy.
[0032]
Furthermore, when the elevator base is retracted, the lower arm portion comes into contact with the elevator base and restricts the upward rotation of the rotary link, so that the canopy is not opened from the outside. Therefore, the stored device can be prevented from being stolen.
[0033]
(d) According to the invention of claim 4, smooth operation can be obtained, and durability can be improved.
[Brief description of the drawings]
FIG. 1 is a perspective view of a desk provided with an embodiment of the present invention.
2 is a longitudinal sectional view taken along the line II-II in FIG.
FIG. 3 is a longitudinal sectional view similar to FIG. 2 when a device is also stored.
FIG. 4 is a side view for explaining the operation of the main part immediately after the elevator base similarly starts to rise from the storage position.
FIG. 5 is a side view for explaining the operation of the main part when the lifting platform is between the retracted position and the raised position.
FIG. 6 is a side view for explaining the operation of the main part just before the lifting platform reaches the retracted position.
FIG. 7 is a side view for explaining the operation of the main part when an attempt is made to open the canopy from the outside.
FIG. 8 is a vertical side view of a conventional device retractable desk.
[Explanation of symbols]
(1) Desk
(2) Side plate
(3) Top plate
(4) Opening
(5) Rear plate
(6) Canopy
(6a) Arm part
(7) Hinge
(7a) Hinge shaft
(8) Lifting means
(9) Lift platform
(9a) Holding part
(10) Protective material
(11) Rotating link
(11a) Upper arm
(11b) Lower arm
(12) Axis
(13) Link
(13a) Leading edge
(14) Axis
(15) axis
(A) Equipment

Claims (4)

The top of the desk is provided with an opening, pivotally attached to the rear of the opening of the desk and capable of opening and closing the opening, a storage position stored below the top, and the opening A device for opening and closing the canopy in a device retractable desk equipped with a lifting platform movable to a rising position facing the
The upper arm is pivotally attached to a lower position of the canopy of the desk and has an upper arm portion that is pushed upward by the rear upper surface of the lifting platform and rotated upward when the lifting platform is lifted from the storage position. Dynamic links,
The lower part of the canopy and the pivot link are connected to each other so that the upper arm of the pivot link moves upward to move the canopy in a substantially vertical direction. And a canopy opening / closing device for a device retractable desk. 2. A canopy opening / closing device for a device retractable desk according to claim 1, wherein a pressing portion for preventing downward rotation of the upper arm portion of the rotation link by slidingly contacting the front edge of the connection link is provided at the rear portion of the lifting platform. . The lower link part which contact | abutted to the lower surface of the rear part of the raising / lowering base at the time of the fall of the raising / lowering base to the storage position was provided in the rotation link so that the said rotation link might be rotated downward. Opening and closing device for canopy in a device retractable desk. The canopy opening / closing device in the device retractable desk according to any one of claims 1 to 3, wherein a protective member having excellent wear resistance and low sliding resistance is provided at a pressing portion of the lifting platform.

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