JPS586876Y2 - lift device - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a lifting device.

When a conventional lifting device lifts or lowers a wide object such as a wall panel (and whose center of gravity is not at the center of its width), the object and the lifting section of the lifting device tilt, causing the lifting cylinder, shaft, and guide to tilt. There is a problem in that the rod or the like is bent, causing a failure of the elevating device itself, or causing distortion of the elevating object and damage to the JP.

Therefore, an object of this invention is to provide a lifting device that can lift and lower an object with a biased center of gravity without tilting it.

An embodiment of this invention will be explained with reference to the drawings.

That is, this elevating device has a fixed frame 2 provided above a pedestal 1, a cylinder 3 for vertical elevating in the center of the fixed frame 2, and a horizontal rotation axis 4 along the length of the fixed frame 2. Further, guide rods 5, 5' are vertically passed through both ends of the fixed frame 2.

Further, sprockets 6, 6' are fixed to both ends of the horizontal rotating shaft 40, and openings are provided in the fixed frame 2 below the tips of the sprockets so that pillars, which will be described later, can pass therethrough.

Further, an elevating frame 7 is arranged below the fixed frame 2, and a shaft 8 fixed at the center thereof is connected by fitting into the cylinder 3 of the fixed part 2, and pillars 9, 9' planted on both sides thereof are connected. A chain 10.10' is suspended from the upper end and is engaged with a sprocket 6.6' of the fixed frame 2, and the guide rods 5, 5' are fixed to both outer ends thereof. .

Furthermore, a hanger rail 11 for suspending and holding an object is attached to the lower surface of the lifting frame 7.

Because of this arrangement, for example, the hanger units 12, 12' are attached to the wall panel 13 on the hanger rail 11.
When suspending and moving upward, when the cylinder 3 is operated in the upward direction, the elevating frame 7 is pulled up by the shaft 8 and rotates or swings left and right according to the guide rods 5 and 5' at both ends. At the same time, the horizontal rotating shaft 4 is rotated via sprockets 6,6' by chains 10,10' suspended from pillars 9,9' installed on both sides of the shaft 80 of the elevator frame 7.

At this time, even if the center of gravity of the wall panel 130 is biased to one side, and a force is applied that causes it to tilt upward to the right, the two sprockets 6 and 6'rtz fixed to both ends of the horizontal rotating shaft 4 have the same amount of rotation. The lift amounts of the left and right chains 10 and 10'O are made equal, and as a result, the pillars 9 and 9' from which the chains 10 and 10' are suspended and the lifting frame 7 on which the pillars 9 and 9' are installed are will rise by equal amounts, that is, in a horizontal state,
The wall panel 13 also does not tilt.

Also, when lowering the wall panel 13 using this device, it will not swing or tilt in the same way, and the lifting cylinder 3, shaft 8, guide rods 5, 5', etc. will be curved and the lifting device will not tilt. Doing so may cause damage to the wall panel 1.
3 itself will not be distorted or damaged.

In addition, the sprocket) 6.6' and the pillar 9 used in this example
9' and chain 10.10'<7) A pinion and rank can be used as an alternative rotational-linear motion conversion means by meshing, and it is also possible to install a rack on the fixed frame side and a pinion on the lifting part side. It is.

As described above, the elevating device of this invention connects the rotating frame and the elevating frame installed and fixed on the frame by the elevating means at the center, and on both sides, the rotational-linear motion converting means by meshing and the elevating and elevating frame arranged vertically. They are connected by guides so that they can approach and separate from each other, and the rotation due to the meshing described above.
Since the rotating body used in the linear motion conversion means is integrally fixed to a common rotation axis, an object with a biased center of gravity can be raised and lowered without tilting.

Moreover, since the rotary-linear motion converting means is composed of a chain attached to a column and a sprocket that meshes with the chain, the structure is simple.

[Brief explanation of the drawing]

The drawing is a perspective view showing the operation of an embodiment of this invention. 1... Frame, 2... Fixed frame, 3...
...Cylinder, 4...Horizontal rotation axis, 5, 5'
...Guide rod, 6,6'...Sprocket, 7...Lifting frame, 8...Shirt)
,9. 9'...Column, 10,10'...
·chain.

Claims (1)

[Scope of utility model registration request] A fixed frame installed and fixed on a pedestal, a lifting cylinder installed downward on this fixed frame, an lifting frame that is suspended at the center by the piston rod of this cylinder and has a hanging means, and this lifting frame. A pair of guide rods are erected near both ends and each is fitted into a guide hole provided in the fixed frame so as to be able to rise and fall; and a chain is erected near both ends of the elevating frame and fixed along the height direction. and a pair of sprockets fixed to both ends of a pair of horizontal rotating shafts rotatably attached to the fixed frame and meshing with each of the chains.