JPH09140461A - Article mounting base - Google Patents

Abstract

PROBLEM TO BE SOLVED: To move a movable base to a desired direction by operating an operation lever, detaching the lock of a gas spring and continuously pressurizing the operation lever as it is. SOLUTION: A lock button 72 is projected from a rod 59, pushes up the operation lever 60 and obstructs the movement of the rod 59. When the knob 75 of the operation lever 60 is pushed down, a shaft rod 69 turns the operation lever 60 counterclockwise with the upper end of the rear oblong hole 65 of a supporting metal fitting 62 as a supporting point. Thus, since the lock button 72 of the gas spring 57 is pushed down, the lock mechanism is released. Simultaneously, the shaft rod 68 is separated from the upper end of the front oblong hole 64 of the supporting metal fitting 61 and abutted to a lower end, and by pushing down the operation lever 60 in a lower direction further, this mounting base 54 is moved in the lower direction. The vertical movement of the mounting base 54 is operated by relatively small force since a balanced state is attained by the gas spring 57.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an article mounting table for operating a movable table on which a mounted object such as a device having a comparatively heavy weight is mounted so as to be vertically movable.

[0002]

2. Description of the Related Art A heavy article such as furniture or machinery is placed on a movable table, and the movable table is supported so as to be movable up and down, and is also supported substantially in balance with the weight of an object to be placed including the movable table. There is an article mounting table which is provided with a gas spring and moves the article up and down with a light force.

In this gas spring, a hollow cylinder is used to seal gas, a piston is provided in the cylinder by a piston, a rod provided on the piston is extended from the cylinder, and the rod is expanded and contracted. It has a locking device to prevent Then, a lock button for operating the lock device is provided in the same direction as the cylinder or the rod (Japanese Patent Publication No. 58-18).
540, JP-B-55-20688).

When this gas spring is used for the article mounting table, it is necessary to operate the movable table with the other hand while pushing the lock button, which is a lock device, when the movable table is moved up and down. 6 to 8, the reference numeral 1 represents a movable base, and the movable base 1 is vertically movably supported by a movable support column 4 sliding on a fixed support column 3 of a base 2. A gas spring 5 is fixed between 2 and the movable base 1. In this case, the gas spring 5 has a cylinder portion 6 of the gas spring 5 and a rod 7. The rod 7 is provided with a lock device (not shown), and a rod 7 is partially provided with a lock button 8. Has been.

This locking device is disclosed, for example, in Japanese Examined Patent Publication No.
As disclosed in Japanese Patent No. 20688, a piston is provided with a valve, and the valve is opened and closed by being operated in the axial direction. When the lock button is pressed, the lock is released and the rod is allowed to expand and contract. is there. Reference numeral 9 denotes an operation lever, which is pivotally supported by a support fitting 11 and a shaft 12 on a frame 10 interposed between the support column and the movable base 1. The tip portion 91 of the operation lever 9 is in contact with the lock button 8, and the operation lever 9
When the knob 13 is grasped and lifted upward, the operating rod 8
Is rotated by a shaft 12, and the tip of the operation lever can press the lock button 8 to unlock the gas spring 5 and push the movable table 1 upward. However, when the movable table 1 is to be pushed downward, the operation lever 9 must be pushed upward, and while keeping this state, the movable table 1 must be pushed downward in the opposite direction. I won't.

[0006]

SUMMARY OF THE INVENTION The present invention is intended to solve the inconveniences in the prior art. When operating the operating lever, the locking device is operated to move the gas spring before moving the movable table. By unlocking the lock lever and continuing to press the operating lever as it is, the operating lever can move the movable table in the desired direction,
The object of the present invention is to provide an article mounting table with excellent operability.

[0007]

In order to achieve the above object, a first aspect of the present invention is directed to a cylinder in which a gas is enclosed, a rod attached to a piston in the cylinder, and a rod projecting out of the cylinder, and an entrance / exit of the rod. A gas spring having a locking mechanism for preventing movement, a movable load part having the other end of the gas spring attached to a fixed part to which one end of the gas spring is attached, and an upward and downward operation of the movable load part. In order to do so, an operating lever provided on the movable load portion and a lock releasing device for operating the lock mechanism by the operating lever are provided, and when the operating lever is operated, the lock releasing device is operated, The movable lever is operated in both up and down directions by the operation lever.

A second aspect of the present invention has a movable base that is supported so as to be movable up and down for installing an object to be placed, and an extension force that approximately balances the weight of the object to be placed, including the movable table. A gas spring having a lock button for fixing the lock lever; and an operation lever pivotally mounted on the gas spring fixture on the movable table side and engaged with the lock button.
When operating in the up and down direction, the operation lever pushes the lock button to release the lock, and the movable base is moved up and down in the same direction as the operation direction of the operation lever.

A third aspect of the present invention has a movable base that is movably supported in order to install a mounted object, and an extension force that approximately balances the weight of the mounted object including the movable table, and the extension force thereof. The operation lever is provided with a gas spring mechanism having a lock button for fixing the gas spring, and an operation lever that is in contact with the lock button and is provided on the gas spring attachment.
Pins are pivotally mounted by two pins in two longitudinal holes arranged in parallel on the gas spring fitting, and the lock button is brought into contact with the operating lever between the two oblong holes. It is a thing.

A fourth invention is the second invention or the third invention.
In the invention, the operation lever is arranged near the movable table.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an article mounting table of the present invention, in which a fixing portion 50 is a pair of bases 51 and 51, and fixed columns 52 and 52 provided on the bases, respectively. The lower frame 56 connects the fixed columns. The movable portion 63, which is a movable load portion, includes movable columns 55 and 55 inserted through the fixed columns 52 and 52, an upper frame 53 suspended between the movable columns, and a pair of movable columns provided on the movable columns. It is composed of a mounting table 54 and accessories. And then
The gas spring 57 that connects the movable portion 50 and the fixed portion 63 is attached between the upper and lower frames 53 and 56.

The gas spring 57 is provided in the cylinder 5
A cylinder having 8 and a rod 59, in which high-pressure gas is sealed, and which is substantially balanced with the load load of the movable portion such as the mounting table 54 is adopted.

On the upper frame 53, an operation lever 60
Support metal fittings 61 and 62 for supporting the front metal fittings 61 and 62 are fixed to the support metal fittings 61 and 62, respectively.
4 and rear elongated holes 65, 65 are bored. These front and rear elongated holes 64 and 65 have front shaft rods 68 penetrating shaft holes 66 and 67 provided at intervals in the operation lever 60,
The rear axle rod 69 is inserted therethrough.

Further, the support fittings 61, 62 and the upper frame 53 are provided with a vertically long hole 70 for inserting the operation lever 60,
71 and 73 are provided. In the embodiment shown in FIG. 1, the rod 59 of the gas spring 57 has the upper frame 5
Lock button 7 attached to the rod 3 provided on the rod 59
2 is facing the upper frame 53, and its lock button 7
The tip of 2 is in contact with the operation lever 60.

FIG. 1 shows the operating lever 60 in the unlocked state.
Is kept substantially horizontal, and the lock button 72 lifts the operation lever 60 by the force of the return spring (not shown) by the lock mechanism, and the shaft rod 6 provided on the operation lever 60.
8 and 69 are positioned so as to be offset toward the upper ends of the elongated holes 64 and 65. 74, 74 are mounting tables 54, 54
The attached metal fittings provided on the above are shown on which the articles to be placed (not shown) are placed. In some cases, a shelf plate (not shown) may be attached to the mounting table 54 and a mounted object may be placed on the shelf plate, and the shelf plate is appropriately fixed to the attachment fitting.

Next, the operation of the present invention will be described. With the product of the present invention assembled, the gas spring 57
The support table including the articles to be mounted in the movable portion is supported by the support table, and is supported substantially in balance with the weight thereof. The mounting table does not move when the lock device of the gas spring is operating, and is kept substantially horizontal with the operation lever 60 also in contact with the lock button 72. At this time, as shown in FIG. 1, both the shaft rods 68 and 69 of the operation lever 60 are lifted to the upper ends of the long holes 64 and 65. Lock button 72
Protrudes from the rod 59 and pushes up the operation lever 60 and prevents the rod 59 from moving.

Now, if it is desired to move the mounting table 54 upward, the operator holds the knob 75 of the operating lever 60 and pushes the operating lever 60 upward. In the operation lever 60, the shaft rod 68 is rotated clockwise as shown in FIG. 4 with the upper end of the front long hole 64 of the support fitting 61 as a fulcrum. Therefore, the operation lever presses the lock button 72. At the same time, the shaft rod 69 separates from the upper end of the rear elongated hole 65 of the support fitting 62 and abuts on the lower end thereof to prevent the operation lever 60 from rotating in the clockwise direction. Therefore, the upward force applied to the operation lever 60 is transmitted from the support fitting 61.62 to the upper frame 53, and at the same time, the locking device of the gas spring 57 is released, so that the column 55 can move upward. The mounting table 54 is moved upward.

When the hand is released from the operation lever or the upward force is released at the predetermined position, the operation lever 60 returns to the horizontal position, and accordingly, the lock button 72 of the gas spring 57 is released.
Lifts the operation lever by its own restoring force to operate the locking device and prevent the rod from expanding and contracting.
Stop at that position.

When the knob 75 of the operating lever 60 is pushed down, the shaft rod 69 can rotate the operating lever 60 counterclockwise as shown in FIG. 5 with the upper end of the rear elongated hole 65 as a fulcrum. . Therefore, the lock button 7 of the gas spring 57
Since 2 is pushed down, its locking mechanism is released, and at the same time, the shaft rod 68 separates from the upper end of the front elongated hole 64, abuts against the lower end, and further pushes down the operation lever to move the mounting table downward. Can be moved. Since the gas spring 57 balances the vertical movement of the mounting table, it can be operated with a relatively small force.

As another embodiment, the support fittings 61, 6 are
2 and the operation lever 60 are engaged not in the front and rear elongated holes 64 and 65 but in the vertically elongated holes 70 or 71 of the support fittings 61 and 62.
However, the front and rear elongated holes 64, 65 may be contacted and engaged prior to the holes. In this case, the shaft rods 68 and 69 serve as guides for the operating lever and do not contact the ends of the front and rear elongated holes 64 and 65, but are included in the present embodiment.
The same applies to the action and effect. The present application may be modified in addition to the above-described embodiments, but all are included in the technical idea of the present application.

[0021]

As described above, according to the first aspect of the present invention, the gas spring is provided between the fixed portion and the movable load portion, and the operation lever for operating the lock mechanism of the gas spring is used. After operating the unlocking of the lock mechanism, the operating lever operates the movable load part up or down.Therefore, the unlocking operation must be performed before the movable load part is operated. In order to operate the operation lever in the direction in which the movable load section is desired to be moved, the movable load section can be moved and operated after the lock is securely unlocked, and a useless force must be applied. It is possible to eliminate the inconvenience.

According to the second aspect of the invention, an operating lever is provided on the gas spring fitting on the movable table side, and when the operating lever is operated in the vertical direction, the lock button is pushed by the operating lever to release the lock. At the same time, the movable table is operated in the same direction as the operating direction of the operating lever for unlocking, so the operator simply releases the lock by operating the operating lever in the desired direction. The gas spring can be expanded and contracted, and then the movable table is moved in the same direction, so that the operation is smoothly performed.

Next, according to the third aspect of the invention, the operating lever is brought into contact with the lock button of the gas spring attached to the movable table, and two vertically elongated holes are provided in parallel with the gas spring attachment. , The shaft of the operating lever is swingably mounted, and the lock button is in contact with the operating lever between the two long holes. Therefore, when it is desired to move the movable table, the operating lever is When operated up and down, the lock button is first pressed to unlock the lock, and then the movable table can be moved up and down by the operation lever.

With this single operation, the operation of unlocking and the operation of moving the movable table can be performed continuously, so that it can be easily performed with one hand, and the mechanism is simple and economical.
It is a great contribution to the industry.

According to the fourth aspect of the invention, since the operating lever is arranged in the vicinity of the movable table, the operator can move the movable table for the purpose of moving, as if the operator is operating with the hand on the movable table. The operation lever can be operated reliably, and the inconvenience of moving the movable table while operating the operation lever and moving the movable table little by little while operating the operation lever can be eliminated.

[Brief description of the drawings]

FIG. 1 is a partially cutaway sectional view of an article mounting table of the present invention.

FIG. 2 is a top plan view of the essential parts of the article mounting table of the present invention.

FIG. 3 is a partially cutaway front view of the article mounting table of the present invention.

FIG. 4 is a cross-sectional view of essential parts for explaining an operating state of the article mounting table of the present invention.

FIG. 5 is a cross-sectional view of an essential part for explaining another operating state of the article mounting table of the present invention.

FIG. 6 is a cross-sectional view of a main part of a conventional article placing table.

FIG. 7 is a cross-sectional view of essential parts for explaining an operating state of a conventional article placing table.

FIG. 8 is a partially cut-away top view of a conventional article placing table.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 movable base 2 base 3 fixed support 4 movable support 5 gas spring 6 cylinder part 7 rod 8 lock button 9 operation lever 10 frame 11 support metal fitting 12 shaft 13 knob 50 fixed part 51 base 52 fixed support 53 upper frame 54 mounting base 55 Movable support post 56 Lower frame 57 Gas spring 58 Cylinder-59 Rod 60 Operation lever 61, 62 Support metal fitting 63 Movable part 64, 64 Front long hole 65, 65 Rear long hole 66, 67 Shaft hole 68 Front shaft rod 69 Rear shaft Rod 70, 71 Vertical hole 72 Lock button 73 Vertical hole 74, 74 Attachment 75

Claims (4)

[Claims] 1. A gas spring having a cylinder filled with gas, a rod mounted on a piston in the cylinder and protruding from the cylinder, and a lock mechanism for preventing the rod from moving in and out; A movable load part having the other end of the gas spring attached to a fixed part to which one end is attached, an operation lever provided on the movable load part for vertically operating the movable load part, and the operation lever And a lock release device for operating the lock mechanism, wherein when operating the operation lever, the lock release device is operated, and then the movable load portion is operated in both up and down directions by the operation lever. An article mounting table. 2. A movable base, which is supported to move up and down, for mounting a mounted object, and an extension force which approximately balances the weight of the mounted object including the movable table, and for fixing the extension force. A gas spring having a lock button, and an operation lever pivotally attached to the gas spring mounting portion on the movable table side and engaged with the lock button. The operation lever is operated when the operation lever is operated in the vertical direction. The article placing table is characterized by pressing the lock button to release the lock and moving the movable table up and down in the same direction as the operation direction of the operation lever. 3. A movable base, which is supported so as to be movable up and down, for mounting a mounted object, and an extension force which approximately balances the weight of the mounted object including the movable table, and for fixing the extension force. A gas spring mechanism having a lock button, and an operating lever provided on the gas spring mounting member while being in contact with the lock button. 1. An article mounting table, characterized in that the lock button is pivotally attached to each of the elongated holes by a pin so that the lock button is brought into contact with the operation lever between the elongated holes. 4. The article mounting table according to claim 2, wherein the operation lever is arranged near the movable table.