JPS5826574Y2 - Gas spring support mechanism in lifting equipment - Google Patents

Description

[Detailed description of the invention] This invention can also be applied to elevating devices such as elevating drafting tables and elevating chairs, and has a simple gas spring support structure that allows the gas spring to be installed accurately and easily at the set position. Regarding the mechanism.

The configuration of the present invention will be described in detail below with reference to embodiments shown in the accompanying drawings.

1 is the base of the elevating drafting table, and gas spring 2 is attached to it.
A mounting portion 3 is formed for receiving the lower end of.

Reference numeral 4 denotes a hollow upright leg rod with a square cross section that is erected on the base 1, into which a hollow lifting body 5 with a square cross section is loosely fitted.

Between a pair of round bars 6 and 7 fixed in the longitudinal direction of the two inner sides of the elevating body 5, and a pair of round bars fixed in the longitudinal direction of the two inner sides of the upright leg rod 4, respectively. A plurality of steel balls are arranged in the , and the elevating body 5 is moved by the steel balls and the round bar.
is supported by the upright leg rod 1 so as to be able to move up and down along this.

The elevating body 5 is configured so that it can be removably fixed to the upright leg rod 4 at any height position by a fixing device.

An insertion hole 8.9 is transparently provided in the upper part of the elevating body 5.

Reference numeral 10 denotes a regulating member fitted and disposed near the upper end of the hollow portion of the elevating body 5, and a holding hole 10a is transparently provided in the central portion.

The regulating member 10 is made of urethane foam, rubber, iron plate,
Other appropriate substances can be used.

A plurality of helmets and regulating members 10 may be provided.

Reference numeral 11 denotes a locking rod in the form of an elongated plate, which is slidably inserted into the insertion holes 8 and 9, and screw holes 12 and 13 are transparently provided at positions near both ends of the locking rod 11. .

The lower surface of the locking rod 11 forms a contact surface for receiving the upper end of the gas spring 2.

14 is a stopper wire attached to the locking rod 11, and 15 is a fixed piece to which the horizontal rod 16 is fixed, and is set in a shape such that it can just come into contact with the upper end of the elevating body 5.

A drawing board support frame 17 is attached to the horizontal rod 16.

2 is a gas spring, which is composed of a cylinder 2a and a piston rod 2b.

Next, the operation of this embodiment will be explained.

1. Set the elevating body 5 to the highest position, and set the locking rod 11.
It slides into the insertion holes 8 and 9 to open the upper end of the elevating body 5, as shown in FIG.

Next, the gas spring 2 is inserted into the holding hole 10a of the regulating member 10 from the upper end of the elevating body 5 with the piston rod 2b facing down, and further inserted toward the back of the elevating body 5 to place the tip of the piston rod 2b. Fit and place it on the placement part 3.

In this state, the cylinder 2a will fit into the holding hole 10a of the regulating member 10.

Next, the locking rod 11 is inserted into the insertion holes 8 and 9 and hung thereon.

Next, the fixed piece 15 is brought into contact with the upper end of the elevating body 5, and the fixed piece 1
Align the holes 18 and 19 of No. 5 with the screw holes 12 and 13,
In this state, if the screw rods 20 and 21 are tightly screwed into the screw holes 12 and 13 through the holes 18 and 19, the locking rod 11 and the fixing piece 15 are firmly fixed to the elevating body 5.

Next, when the elevating body 5 is slightly lowered along the upright leg rod 4, the cylinder 2 of the gas spring 2 is placed on the lower surface of the locking rod 11.
a The upper end touches.

When a drawing board is fixed to the drawing board support frame 17 and a drawing machine is installed on the drawing board, the load applied downward to the gas spring 2 and the elastic force of the gas spring 2 are exactly balanced by the total weight of the drawing board. It is set as follows.

Therefore, when a slight force is applied in the vertical direction to the elevating body 5 in the above state, the elevating body 5 moves up and down along the upright leg rod 4,
It is possible to set the height of the drawing board to an arbitrary position.

In addition, when replacing the gas spring 2, first set the elevating body 5 to the highest position, and then replace the screw rod 20.
゜21 and remove the fixing piece 15 from the locking rod 11.
Next, the locking rod 11 is slid laterally to open the upper end of the elevating body 5.

Next, pull out the gas spring 2 upward and install a new gas spring in the same manner as described above.
Set inside.

Next, the fixing piece 15 is brought into contact with the upper end of the elevating body 5, and the locking rod 1
Fixed to 1.

Since the present invention is constructed as described above, the gas spring can be easily installed and replaced, and the mechanism is extremely simple.

[Brief explanation of drawings]

The figures show a preferred embodiment of the present invention, with Fig. 1 being an overall external view, Fig. 2 being a sectional view of the lower part of the elevating platform, Fig. 3 being a sectional view of the upper part of the elevating body, and Fig. 4 with the fixing piece removed. FIG. 5 is an external view of the upper part of the elevating body in a state where the elevating body is in a closed state. DESCRIPTION OF SYMBOLS 1... Base, 2... Gas spring, 3... Placement part, 4... Upright leg lever, 5... Lifting body, 6, 7...
Round bar, 8゜9...Insertion hole, 10...Regulation member, 11
... Locking rod, 12.13 ... Screw hole, 14 ... Wire, 15 ... Fixing piece, 16 ... Horizontal rod, 17 ...
Drawing support frame.

Claims (1)

[Scope of utility model registration request] A base 1 and an elevating body 5 supported on the base 1 so as to be movable up and down.
and the base 1 on which the lower end of the gas spring is placed.
, insertion holes 8 and 9 formed in the elevating body 5 slightly below the upper end thereof, and the insertion holes 8 and 9 formed in the mounting table 3;
a locking rod 11 that is slidably inserted in a direction perpendicular to the longitudinal direction of the elevating body 5 and has an abutment surface that receives the upper end of the gas spring 2; .