JPH092789A - Jack device - Google Patents

Abstract

PURPOSE: To provide a jacks device by which installation work of equipment can be safely performed by light work and with one operator. CONSTITUTION: When an object to be raised and lowered is raised and lowered, a lateral plate part 15A of a locking tool 15 is faced, from below, to a contact part of the object to be raised and lowered in a state where a raising and lowering body 10 is lowered in relation to a supporting lever 7. A longitudinal plate part 15B of the locking tool 15 is brought in contact with the object to be raised and lowered 25 side, so as to prevent excessive insertion. The raising and lowering body 10 is raised in relation to the supporting lever 7 by the operation of a raising and lowering operation device 11, the locking tool 15 to be raised together with the raising and lowering body 10 is brought in contact with the contact part from below, and the object to be raised and lowered 25 is lifted and supported by a jack device 22. The raising and lowering body 10 is gradually lowered in relation to the supporting lever 7 after the raising and lowering operation device 11 is reversely operated, the locking tool 15 is lowered together with the raising and lowering body 10, and the object to be raised and lowered 25 is lowered.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jack device used for installing various equipment such as a conveyor device.

[0002]

2. Description of the Related Art Conventionally, for example, as shown in FIG. 4, in a conveyor device 40, landing gears 43 provided at the lower ends of the legs 42 constituting a frame 41 are placed on a carriage 44, respectively. By pushing it in this state by hand, etc.
Is moved to the installation site. Here, as the trolley 40, for example, one having the structure shown in Japanese Utility Model Laid-Open No. 62-156079 is used.

At the installation site, as shown by the solid line in FIG. 4, a burl (flutter angle) 45 or the like is inserted by a worker's hand from the lower part of one end side of the frame 41 to the floor surface, and the upper side of the burl 45. By lifting and lowering the lever, as shown by the phantom line in FIG.
One end side of 40 is lifted. With this lift, the dolly
The landing gear 43 is separated upward from the 44, and in this state the dolly
44 is removed laterally outward so that one end of the conveyor device 40 is supported via the burl 45 as shown in phantom in FIG. Then, by slowly returning the burl 45, the landing gear 43 is landed as shown by the solid line in FIG. 5, whereby the conveyor device 40 is installed.

[0004]

According to the above-mentioned conventional type, even if the lever principle is used, the lifting operation of the burl 45 becomes a heavy labor and a dangerous work. Further, while one worker is lifting and operating through the burl 45, the dolly 44 must be removed by another worker, and at least two workers must be engaged.

It is an object of the present invention to provide a jack device which can perform equipment installation work safely by light labor and even by one worker.

[0006]

In order to achieve the above object, a jack device according to the first aspect of the present invention is provided with a landing body, a support rod standing upright from the landing body, and an elevating body that can move up and down with respect to the support rod. And an elevating device provided on the upper and lower parts of the elevating body, and an L-shaped locking tool provided on the elevating body.

In the second aspect of the present invention, in the jack device according to the first aspect of the present invention, the landing body is provided with a wheel body that does not land when the landing body lands, but lands when the supporting rod side inclines.

[0008]

According to the structure of the first aspect of the present invention described above, when various equipment such as a conveyor device is lifted or lowered as an object to be lifted, first, the lifting body is lowered with respect to the support rod.
The lateral plate portion of the locking tool is made to face the abutted portion on the lifted object side from below. At this time, the vertical plate portion of the engaging member abuts against the object to be lifted, so that excessive insertion can be prevented.
Then, the lifting / lowering operation device is actuated to move the lifting / lowering body up and down with respect to the support rod, so that the locking tool that rises together with the lifting / lowering body is brought into contact with the contacted portion from below, thereby lifting the lifting / lowering object. Can be supported by a jack device.

After performing various operations on the object to be lifted and lowered, the lifting operation device is reversely operated to gradually lower the lifting body with respect to the support rod, thereby lowering the locking tool integrally with the lifting body. Then, the lifted object can be lowered and landed.
After that, the locking tool can be pulled out from below the object to be lifted, and the jack device can be moved to another location.

According to the structure of the second aspect of the present invention, the wheel landed by inserting the locking tool into the lifted object side while sliding the landing body on the floor surface or by inclining the supporting rod side. It can be done while rotating the body. After that, the jack device is pulled out from below the object to be lifted and moved to another place. At that time, the movement can be easily and quickly performed by landing the wheel body.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. In FIG. 1, the landing body 1 is formed in a flat frame shape by a landing plate 2 having a rectangular plate shape and side plates 3 integrally connected upward from three side edges of the landing plate 2.
On the outer surface side of the rear side plate 3, a pair of left and right wheel bodies 4 is provided.
Are arranged in a caster form via the bracket 5 and the like. Here, the wheel body 4 is not landed when the landing plate 2 lands in a horizontal state, and the landing plate 2 is the lower side when the landing plate 2 is lower.
Is designed to land when the is tilted.

A support rod 7 is erected from the landing body 1. That is, a tubular body 8 is erected as an upper opening at the center of the upper surface of the landing plate 2, and the lower end of a rod-shaped support rod 7 is inserted into the tubular body 8 and a bolt screwed to the tubular body 8 is inserted. It is fixed by the body 9. An elevating body 10 is provided which is movable up and down with respect to the support rod 7. That is, a cylindrical elevating body 10 is externally fitted to the supporting rod 7, where the supporting rod 7 and the elevating body 10 are in the form of a cylinder, and the elevating body 10 is movable up and down.

On the upper part of the lifting body 10, a lifting device 11 is installed.
Is provided. That is, the lifting / lowering operation device 11 is of a ram cylinder type utilizing hydraulic pressure, and by manually swinging the operating lever 12 up and down, oil is press-fitted between the supporting rod 7 and the lifting body 10 to support the supporting rod. It is configured to raise the lifting body 10 with respect to 7. Further, the lifting / lowering operation device 11 is provided with a release valve operating member 13 for releasing the oil between the support rod 7 and the lifting / lowering body 10 by a manual operation from the outside.

The lifting body 10 is provided with an L-shaped locking member 15,
The vertical position of the lifting body 10 is changeable. That is, a block body 16 which is fitted onto the lifting body 10 and is capable of moving up and down is provided, and at this time, the fitting is performed via the bifurcated portion. A bolt / nut (operation tool) 17 for tightening and opening the bifurcated portion is provided on the bifurcated portion. A wrench 21 for screwing the bolt / nut 17 is provided.
It is locked by a locking pin 14 provided on the upper part of 10.

The locking member 15 is formed into an L shape by bending a plate body, for example, and a rib-shaped reinforcing member 18 is provided over the outer surfaces of the horizontal plate portion 15A and the vertical plate portion 15B. There is. The locking member 15 is connected to the block body 16 by a pin 19 via a portion of the reinforcing member 18 located on the vertical plate portion 15B. Also, on the horizontal plate portion 15A,
A cushioning material 20 made of rubber or the like is provided. Above 1
21 to 21 form a jack device 22.

The operation of the above embodiment will be described below. As shown by the solid line in FIG. 2, in a conveyor device 25, which is an example of an object to be lifted and lowered, a landing implement 28 provided at the lower end of each leg 27 constituting the frame 26 is placed on a carriage 30. . Here, the trolley | bogie 30 is comprised by the main body 31 which can support the landing implement 28 by the upper surface, and the caster wheels 32 provided in the multiple places of this lower part of this main body 31. With the landing gear (28) placed on the trolley (30), the conveyor device (25) is moved to the installation site by pushing manually.

At this installation site, a jack device 22 is prepared as shown by the solid line in FIG. Here, the jack device 22 is adjusted so that the lifting stroke of the locking tool 15 can be performed at a desired level. That is, after loosening the bolts and nuts 17 via the spanner 21, and moving the block body 16 up and down with respect to the support rod 7 to adjust the vertical position,
Tighten the bolts and nuts 17. Then, the elevating body 10 is lowered with respect to the support rod 7 in a state where the position of the locking tool 15 is adjusted. Such a jack device 22,
The conveyor device 25 is set at a predetermined position.

That is, as shown by the phantom line B in FIG. 2, the lateral plate portion 15A of the locking tool 15 is positioned below the contact portion 26A on the frame 26 side, and the cushioning material 20 is applied to the contact portion 26A. Face them from below. At this time, the frame of the horizontal plate portion 15A
The insertion on the 26 side is fully done, and the vertical plate part 15
Since B is brought into contact with the frame 26 side, excessive insertion is prevented. It should be noted that the insertion may be performed while sliding the landing plate 2 on the floor surface, or, as shown by the phantom line B in FIG. 2, inclining the support rod 7 side and rotating the landed wheel body 4. You can go while.

As shown by phantom line B in FIG. 2, with the jack device 22 set at a predetermined position of the conveyor device 25, the operating lever 12 is moved up and down by a manual operation of an operator like a manual pump. The rocking operation is performed, whereby oil is press-fitted between the support rod 7 and the lifting body 10 to move the lifting body 10 upward.

As a result, the lifting / lowering body 10 is raised with respect to the support rod 7, and the cushioning material 20 of the locking tool 15 that is lifted up integrally with the lifting / lowering body 10 is brought into contact with the contacted portion 26A from below. As shown by the solid line in FIG. 3, one end side of the conveyor device 25 is lifted. By this lifting, the landing implement 28 is separated from the carriage 30 upward, so that one end side of the conveyor device 25 is supported by the jack device 22. In this state, the cart 30 is taken out to the outside.

Next, the operation tool 13 of the release valve is manually operated from the outside to slowly release the oil between the supporting rod 7 and the elevating / lowering body 10, whereby the elevating / lowering body 10 is gradually lowered with respect to the supporting rod 7. Then, by lowering the locking tool 15 integrally with the lifting body 10, one end side of the conveyor device 25 is lowered. Then, the landing implement 28 is landed as shown by the phantom line in FIG. 3, and thereby the conveyor device 25 is installed.

After that, the engaging member 15 is pulled out from the lower part of the conveyor device 25 and moved to another place. At that time, the movement is made by moving the wheel body 4 as shown by the phantom line B in FIG. It can be done easily and quickly by landing. In addition, the working position of the jack device 22 with respect to the conveyor device 25 is a suitable place such as the center portion in the width direction at both ends or the left and right end portions at both ends.

In the above-mentioned embodiment, the jack device 22 is made to act on the conveyor device 25, but this can be made to act on various equipment such as a chute device. In the above embodiment, the rod-shaped support rod 7 and the tubular elevating / lowering body 10 are configured to move up and down. It may be.

In the above embodiment, the manual lifting and lowering actuator 11 having the operating lever 12 is shown, but it may be a drive type lifting and lowering actuator 11 having a hydraulic motor or the like. In the above embodiment, the vertical position of the locking tool 15 can be freely changed with respect to the lifting body 10.
It may be a fixed format.

In the above embodiment, the wheel body 4 is provided on the landing body 1, but this may be the landing body 1 without the wheel body 4.

[0026]

According to the first aspect of the present invention having the above-described structure, the lifting / lowering body is lifted up and down with respect to the supporting rod by the operation of the lifting / lowering actuating device, and the lifted / lowered body is lifted together with the lifting tool. It is possible to lift and support an object, and by lowering the elevating body with respect to the supporting rod by the reverse operation of the elevating and lowering device, it is possible to lower the object to be lifted through a locking tool that descends integrally with the elevating body. As a result, it is possible to safely perform the work of installing an object to be lifted and lowered, for example, various devices, with a light labor, and moreover, one worker can quickly perform a plurality of works. At that time, the lateral plate portion of the L-shaped locking tool can stably perform lifting by abutting, and the vertical plate portion abuts on the object to be lifted to prevent excessive insertion. The contact of the lateral plate portions can always be suitably performed.

Further, according to the second aspect of the invention having the above-mentioned structure, it is easy to insert or pull out the locking tool from the lifted object side or to move the jack device to another place while rotating the landed wheel body. Can be done quickly.

[Brief description of drawings]

FIG. 1 is a perspective view of a jack device according to an embodiment of the present invention.

FIG. 2 is a side view before the jack device is set on the conveyor device.

FIG. 3 is a side view when the jack device is set on a conveyor device.

FIG. 4 is a side view showing a conventional example before lifting the conveyor device.

FIG. 5 is a side view when the conveyor device is lifted.

[Explanation of symbols]

 1 Landing body 2 Landing plate 4 Wheel body 7 Supporting rod 10 Lifting body 11 Lifting body 11 Lifting actuator 12 Actuating lever 13 Operating tool 15 Locking tool 15A Horizontal plate part 15B Vertical plate part 16 Block body 17 Bolts / nuts (operating tool) 20 Cushion Material 22 Jack device 25 Conveyor device (object to be lifted) 30 Truck

Claims (2)

[Claims] 1. A landing body, a support rod erected from the landing body, an elevating body that can be raised and lowered with respect to the support rod, an elevating and lowering device provided on an upper portion of the elevating body, and the elevating body. A jack device comprising a provided L-shaped locking tool. 2. The landing body does not land at the time of landing of the landing body,
2. The jack device according to claim 1, further comprising a wheel body that is landed when the support rod side is inclined.