JPS6116830Y2 - - Google Patents

Description

[Detailed explanation of the invention] The top of the desk is usually horizontal, but it is suitable for reading, writing,
Depending on the purpose of use, such as drawing or writing, or depending on the user's preference, it may be desirable to tilt it slightly.

The present invention can be used in such cases with simple operation.
This invention relates to a device that allows a top plate to be tilted at any angle, and will be specifically described below with reference to the accompanying drawings.

Figures 1 and 2 show a desk equipped with an embodiment of the device of the present invention, which is erected from the rear ends of left and right horizontal leg rods 1, 1 that face in the front-rear direction and are parallel to each other. Horizontal rectangular cylindrical support arms 3, 3 facing forward are fixed to the upper ends of the pillars 2, 2, respectively.

As shown in FIGS. 1 and 3, between both support arms 3, 3, the rear part of the top plate 4 is connected to a horizontal pin 5 in the left and right direction.
It is supported by A vertically elongated hole 6 is cut in the front portion of the opposing surface of each support arm 3.

A support shaft 7 that faces in the left-right direction and is pivoted on the lower front part of the top plate 4 projects slightly from both sides of the top plate 4, passes through the vertical hole 6, and has an end portion thereof that projects into the support arm 3. A worm wheel 8 having the same diameter and the same number of teeth is fitted in each.

In front of the longitudinal hole 6 in each support arm 3, a rack 9 that engages with the worm wheel 8 is erected with a mounting fitting 10. Behind the vertically elongated hole 6 in the right support arm 3 is a worm 11 that faces in the vertical direction and engages with the worm wheel 8.
The worm 11a, which is pivotally installed with a mounting bracket 12 and passes through the lower surface of the support arm 3, has a handle 13.
is installed.

In the device of the present invention configured as described above, the handle 13
When rotated, the right worm wheel 8 that meshes with the worm 11 and the left worm wheel 8 that is integrally connected to this worm wheel 8 via the support shaft 7 rotate at the same speed and in the same direction. .

Then, both worm wheels 8 with the same diameter and the same number of teeth, which are fixed to each support arm 3 and mesh with the rack 9,
8 moves up and down simultaneously and equally on the left and right sides together with the front part of the top plate 4.

In addition, the worm wheel 8 due to the tilting of the top plate 4
The horizontal displacement of is so small that it can be virtually ignored.

As described above, the device of the present invention allows the front part of the top plate 4 to be easily raised and lowered by operating one handle 13, and the inclination angle thereof can be adjusted arbitrarily. Since it is housed in the supporting arm 3, it does not spoil the appearance.

FIG. 6 shows a case where this device is also used at the rear of the top plate 4. In FIG. It is being

By appropriately rotating both handles 13, 13, this desk can hold the top plate 4 horizontally.
Its height can be adjusted and it can be tilted forward or backward.

In addition, the rear handle 1 provided above the support arm 3
3, it is preferable to make it removable so that it does not get in the way when using the desk. In addition, the front and rear width of the pillar 2 is made small, and the rear handle 13
can also be provided below the top plate 4.

[Brief explanation of the drawing]

FIG. 1 is a front view of a desk equipped with an embodiment of the device of the present invention, FIG. 2 is a right side view, and FIG.
Partially cutaway enlarged right side view of the right supporting arm, Figure 4 is
Fig. 5 is a partially cutaway enlarged left side view of the front part of the left supporting arm, and Fig. 6 is a longitudinal cross-sectional view taken along the line A-A in the figure. It is a partially notched enlarged right side view. 1...Leg rod, 2...Strut, 3...Support arm, 4...
Top plate, 5...pin, 6...vertical hole, 7...support shaft,
8... Worm wheel, 9... Easy, 10...
...Mounting bracket, 11...Worm, 11a...Worm shaft, 12...Mounting bracket, 13...Handle.

Claims (1)

[Scope of utility model registration request] In a desk with a top plate between a pair of left and right hollow horizontal support arms that face in the front-rear direction, there is a desk with a top plate at the front-rear end of the top plate that faces the left-right direction and that slightly protrudes from both sides of the top plate. The ends of the support shafts are inserted into vertical holes cut in the opposing faces of both support arms, and the ends of the support shafts are provided with holes of equal diameter within the support arms. A worm wheel having the same number of teeth is fixed, and a rack that engages with the worm wheel is provided in both support arms, and this worm wheel is connected to a worm provided in one of the support arms vertically. A tilting device for the top plate of a rotating desk.