JPH0750973Y2 - Table height regulator - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a regulating device capable of positioning the height of a table stepwise.

[0002]

2. Description of the Related Art Conventionally, for example, a computer main body and a display device are placed on a top plate of an office desk, and a keyboard is placed on a table arranged in front of the top plate separately from the desk. There is. The table is supported by the tip of a support arm, and the height of the table can be adjusted so that the upper surface of the keyboard and the upper surface of the top plate can be formed substantially flush with each other on the table. To adjust the height of the table, a knob for fixing the rear end of the arm is provided at the rear end of the arm extending below the top plate, and the tightening force of this knob adjusts the arm to a predetermined swing angle. It is a thing.

[0003]

According to the conventional example, the adjustment operation is performed because the table height is adjusted by rotating the knob at the rear end of the arm located at the back of the desk. There was a difficult inconvenience.

An object of the present invention is to make it possible to adjust the height of a table simply and reliably.

[0005]

A feature of the present invention is that a table, a pair of stays that rotatably support the table at one end, and a support body that rotatably supports the other ends of the pair of stays. And an adjusting mechanism that is provided on the support and that adjusts the height of the table stepwise, wherein the pair of stays are vertically opposed to each other, The adjustment mechanism includes a guide plate rotatably supported by the support plate, a lock lever rotatably attached to the guide plate, an adjustment shaft erected on one of the pair of stays, The guide plate is provided with a vertically elongated guide groove, and the lock lever has a notch groove and a protrusion for unlocking. And formed and above The notch groove is formed from the lower part upward, and at least two lock recesses are provided continuously in the lengthwise direction on the inner side of one of the notch grooves, and the adjusting shaft has the guide groove extending in the lengthwise direction. The lock spring is pierced so as to be movable in the depth direction and can be selectively detachably locked in the lock recess, and the spring is provided with the adjustment lever for unlocking the lock recess by the adjustment shaft. The engaging portion is formed so that the protrusion can be engaged.

[0006]

Therefore, the height of the stay is gradually changed by swinging around the pin at the rear end of the stay, and the selected height of the table is maintained by the adjusting mechanism operated by the swing of the stay. To be done.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, a table height regulating device according to the present invention comprises a table 1, a pair of stays 2,
3 and a support plate 4 which is a support means for the pair of stays,
The adjusting mechanism 5 is provided.

The table 1 is located in front of the top plate 6 of the office desk (to the left in FIG. 1), and the front ends of the pair of stays 2 and 3 form the same plane as the top surface of the top plate. Is supported as.

The stays 2 and 3 are formed in a groove shape as shown in FIGS. 4 and 5, and are vertically opposed to each other as shown in FIG. The tips of the stays 2 and 3 support the table 1 in a horizontal state via the pins 7 and 7 and a fixing plate 8 fixed to the back surface of the table. The rear ends of the stays 2 and 3 are supported by the support plate 4 below the top plate 6 with the pins 9 and 9 as the swing centers. Stay 2 (same for stay 3)
Is rocked by a predetermined angle θ (FIG. 6) from the position shown by the solid line in FIG. 1, so that the table 1 at the first level L1
Of the table 1 on the first level L1 is lowered to a third level L3 below the stay by swinging the stay by a predetermined angle θ1. Will be located. Table 1 is
When it is at the first level L1, it forms the same plane as the upper surface of the top plate 6, and when it is at the second level L2,
When the upper surface of the keyboard (not shown) on the table and the upper surface of the top plate 6 are at the same level and further at the third level L3, the table is in a position where it can be stored under the top plate 6. .

The method of storing the table 1 will be described. As shown in FIG. 1, the support plate 4 is provided on the back surface of the top plate 6 along the front-rear direction (left-right direction in the drawing).
It is suspended from the sliding body 11 which is slidably fitted to 0 (FIG. 1). Therefore, when the table 1 is located at the third level L3, by pushing the table horizontally toward the top plate 6, the support plate 4 slides behind the top plate 6 and the table 1 is stored. It will be.

The swing angles of the stays 2 and 3 are adjusted by the adjusting mechanism 5. Therefore, this adjusting mechanism is mainly shown in FIG.
This will be described with reference to FIGS. 5, 6 and 7.

The adjusting mechanism 5 includes an adjusting shaft 13, a guide plate 14,
It is composed of a lock lever 15 and a spring 16. Adjustment shaft 13
Is axially supported on both sides of the upper stay 2 as shown in FIG. 5, and penetrates the guide plate 14 in the thickness direction.

As shown in FIG. 2, the guide plate 14 is vertically provided on the support plate 4 with a pin 17 as a swing center via a suspension plate 12, and a guide groove of a joint length is provided at an intermediate portion of the guide plate. 14a is opened. The adjusting shaft 13 is movable in the vertical direction in the guide groove 14a.

Further, the lock lever 15 is attached to the guide plate 14 so as to be swingable about the pin 18 in a stacked state. The lock lever 15 has a substantially U-shaped cutout groove 15a formed upward from the lower end. Two lock recesses 15b and 15c are continuously provided on one side (left side in FIG. 6) of the cut groove 15a, the lower end outside of this side is an inclined surface 15e, and the inner surface of the right hanging part is It is straight downward. The internal shapes of the lock recesses 15b and 15c are such that the adjusting shaft 13 can be temporarily locked in the lock recesses. A protrusion 15d for unlocking is provided on the upper end of the lock lever 15, and a spring 16 exerts a spring force on this protrusion in a counterclockwise direction (locking direction) about the pin 18 as a center. The spring 16 is hooked on a stop pin 19. By the spring force of the spring 16, the adjustment shaft 13 can be selectively locked with either the lock recess 15b or the lock recess 15c.

The unlocking action will be described. As shown in FIG. 7, the lock lever 15 is moved by moving the adjusting shaft 13 in the guide groove 14a upward from the position shown in FIG.
Swings clockwise against the spring force of the spring 16, the projection 15d engages with the release recess 16a of the spring 16 and holds this state, so that the adjusting shaft 13 is disengaged from the lock recess 15b. At this time, the hanging part on the right side of the cut groove 15a of the lock lever 15 is in an overlapping state with the guide groove 14a.

Next, an operation for adjusting the height of the table 1 step by step will be described.

When the table 1 is located at the first level L1, the spring force acts on the lock lever 15 by the spring 16 in the counterclockwise direction about the pin 18 as shown by the solid line in FIG. The adjusting shaft 13 is located in the upper lock recess 15b and is locked in the lock recess 15b. As a result, the positions of the stays 2 and 3 are fixed. As shown by the solid line in FIG. The same plane is formed so as to coincide with the level of the top surface of the top plate 6.

Next, the case where the table 1 is moved down from the first level L1 to the third level L3 will be described.

First, the table 1 is lifted up as it is. Therefore, the stays 2 and 3 swing clockwise about the pins 9 and 9 by a predetermined angle, and with this swing, the adjusting shaft 13 moves upward in the guide groove 14a, and as shown in FIG. The lock lever 15 is brought into contact with the upper end of the guide groove.
Rotates clockwise around the pin 18 against the spring force of the spring 16, and the protrusion 15d of this lock lever engages with the release recess 16a of the engaging portion of the spring 16, so that the adjustment shaft 13 The lock is released by detaching from the lock recess 15b, and the released state is maintained, and the positions of the stays 2 and 3 are also released. Next, when the table 1 is lowered, the adjusting shaft 13 rotates the lock lever counterclockwise while sliding on the inclined inner surface on the right side of the cut groove 15a of the lock lever 15 during the lowering, As shown by the chain line, the guide plate 14 swings counterclockwise around the pin 17, the adjustment shaft 13 comes into contact with the lower end of the guide groove 14a, and its descent is stopped. At this time, stays 2 and 3
Is swung about the pin 9 by a predetermined angle θ1, the table 1 is automatically set to the third level L3. At this time, the lock lever 15 is in the state shown in FIG.

At the level L3, if the table 1 is not used, if the table is pushed toward the top plate 6, the support plate 4 will slide along the guide rails 10. It is stored under the top plate.

Further, the case of moving from the third level L3 of the table to the second level L2 will be described.

In this case, when the table 1 is lifted,
The stays 2 and 3 swing clockwise about the pin 9,
The adjusting shaft 13 moves upward while coming into contact with the inclined portion 15e at the lower end of the lock lever 15, and due to the contact with the inclined surface at the time of this movement, this lock lever resists the spring force of the spring 16 and moves clockwise. After being swung, the adjusting shaft enters the lower lock recess 15c and is locked in the lock recess by the spring force of the spring 16 acting in the locking direction.

At this stage, the positions of the stays 2 and 3 are fixed, and the position of the table 1 on the second level L2 is fixed. When the keyboard is located on the table 1, the upper surface of the keyboard coincides with the upper surface of the top plate 6.

In this way, the stays 2 and 3 swing by simply moving the table 1 up and down appropriately, and the adjusting shaft 13 is selectively locked in the two-stage locking recesses 15b and 15c and is locked. By releasing the lock from the recess, the first to third levels L1 to L3 of this table can be selected.

The lock recess is not limited to two steps, but may be three steps or more.

[0027]

According to the present invention, the table is supported by using a pair of stays and interlocked with the adjusting mechanism, and the height of the table can be adjusted by simply moving the table up and down. And the table height can be adjusted reliably.

[Brief description of drawings]

FIG. 1 is a front view of this device.

FIG. 2 is a front view showing a relationship between a stay and an adjusting mechanism.

FIG. 3 is a plan view of FIG.

FIG. 4 is a cross-sectional view showing the relationship between stays, pins, and support plates.

FIG. 5 is a vertical sectional view of an adjusting mechanism.

FIG. 6 is an enlarged front view of the adjusting mechanism.

FIG. 7 is a front view of the adjusting mechanism when the lock is released.

[Explanation of symbols]

 1 table 2 stay 3 stay 4 support body (support plate) 5 adjustment mechanism 6 top plate 7 pins 9 pins 13 adjustment shaft 14 guide plate 14a guide groove 15 lock lever 15a cut groove 15b lock recess 15c lock recess 15d protrusion for unlocking Part 16 Spring 16a Release recess 17 pin 18 pin

Claims (1)

[Scope of utility model registration request] 1. A table (1) and a pair of stays (2, 3) rotatably supporting the table at one end,
Support for rotatably supporting the other end of the pair of stays
(4), and an adjusting mechanism (5) provided on the support and for adjusting the height of the table stepwise.
And, the one pair of stays, vertical being oppositely disposed, the adjustment mechanism, <br/> guide plate that is rotatably supported on the support (14), this guide plate It is attached so that it can rotate.
That the locking lever (15), one of the pair of stays
An adjusting shaft (13) installed on (2), and a spring (16) for applying a spring force in a direction to lock the lock lever.
The guide plate is provided with a vertically elongated guide groove (14a).
Ri, the above-mentioned lock lever, lock solutions and notches (15a)
A protrusion for removal (15d) is formed, and the cut groove is formed from the lower part to the upper part,
And at least two locks on the inside of one of them
Click recess (15b, 15c) is Yes and continuously provided, the adjusting shaft, the guide groove movably through its length, and alternatively detachably engaged with the locking recess
It is possible that the spring has the adjustment shaft locked by the locking recess.
The protrusion of the lock lever engages to release the lock
A height regulating device for a table, wherein a possible engaging portion (16a) is formed .