JPH04108754U - lift device - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a lifting device that is highly safe and can easily cope with the extension of a chain or wire rope. [Structure] A chain 11 is connected to a base plate 9 at a fixed point 12, a freewheel chain 8 is rotatably provided on a platform 4, and a shaft 5 is supported on the platform 4.
It is hung on chain wheels 7 fixed to both ends of the top plate 16, extends upward, and is fixed to tension adjusting means (not shown) on the top plate 16.
The same applies to wire ropes.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to lifting devices, especially lifting devices suitable for carports for multi-level parking. related.

0002

[Conventional technology]

Recently, proposals have been made for devices that allow cars to be parked on two levels, both above and below the ground. . The lifting device used for this parking moves up and down between the four pillars installed at the corners of the square. It has a freely arranged platform, and at the lowering limit position of the platform A car enters the platform, rises up the platform, stops, and lifts the platform. This allows other vehicles to enter the position after the platform has been raised.

0003 In this type of lifting device, the platform is moved up and down while remaining horizontal. As a guide, the four pillars are used as guides for hydraulic drive, chain lifting, and links. etc. are possible. Hydraulically driven, link-based devices are installed outside the four pillars mentioned above. It is not suitable as a carport to be installed in a location where it does not protrude significantly from the bottom left or right. In this respect, if the platform is supported and driven by a chain, the platform should be A support device for parallel movement is placed between the four pillars and is movable.

0004 The present applicant has proposed a lifting device shown in Japanese Utility Model Application Publication No. 2-134159. . As shown in FIGS. 4 and 5, the lifting device is constructed of four pillars 1, 1', and 2 and 2' are the main members of the framework, and a platform 4 is arranged between the four pillars so as to be able to move up and down. A support device is provided to move the platform 4 vertically in parallel. The support equipment The position is on both ends of parallel first and second horizontal shafts 5 and 6 which are supported on the platform 4. are each equipped with a similar chain transmission device. The chain transmission device has horizontal shafts 5, 6. Chain wheels 7a and 8a, 7a' and 8a', 7b and 8b are arranged close to each other on both sides. , 7b' and 8b', each of which is arranged in one vertical plane. In the vertical plane including the chain wheels 7a and 8a, one end is on the base side of one pillar 1. A chain 11 fixed to a column 1 or a foundation member and directed vertically upward is attached to a first horizontal axis 5. A second horizontal shaft is hung diagonally above the fixed chain wheel 7a and extends laterally. It is hung diagonally under the other chain wheel 8a fixed to the chain wheel 6 and is directed vertically upward. The other end is fixed to the four pillars 2 or the horizontal member 14 above the pillar 2 near the other chain wheel 8a. At the same time, it approaches the vertical plane on which the chain wheels 7a and 8a are arranged, and the chain wheels In one other vertical plane including 7b and 8b, the above-mentioned four pillars 1 and 2 are alternated. The chain devices are arranged symmetrically with the chain devices in Figure 5, and these chain devices are 5 are arranged symmetrically above and below, and the horizontal axis 5 is rotationally driven. .

[0005] by this, (1) One of the chains that supports the platform horizontally and moves it up and down, or Even if one of the chains on both sides breaks, the platform will not fall or tilt and will remain in the water. It is safe because it can move up and down while remaining flat. (2) Arrange the chain and chain wheel symmetrically on both sides, and raise the chain wheel axis equally. Since the platform is moved downward, no horizontal load is applied to the platform. The guide member for guiding the platform can be a member that can prevent the platform from rolling. There are other effects. We also propose a version of the above configuration in which the chain and wire rope are replaced. Ta.

[0006]

[Problem that the idea aims to solve]

In the conventional example above, it is the same on both sides of the platform 4, but let's consider one side. The part of the chain 11 that extends horizontally is between the chain wheels 7a and 8a and between the chain wheels 7b and 8b. It is hung. And the chain wheels 7a, 7b, 8a, 8b are respectively platform The shaft is supported on the arm 4. Therefore, chain wheels 7a and 8a, 7b and 8 Between b, the distance between the axes is constant. Then, when the chain 11 is extended, the chain wheel 7a The chain 11 stretched horizontally between 8a, 7b and 8b is lowered.

[0007] For this purpose, it is possible to install a tension chain foil to provide tension, but Then, the chain 11, which is stretched horizontally, will be extended from the top and bottom of the platform 4. I can't hear it. Also, each chain wheel 7a, 7b, 8a, 8b, 7a', 7b', 8 Since the angle where chain 11 is wrapped around a' and 8b' is small, approximately a quarter circle, the chain 11 loosening and wear of the chain and chain wheel are related, and the chain is removed from the chain wheel. This results in the disadvantage that the locks tend to come off easily.

[0008] This idea solves the problems of the conventional example, has great safety, and has a flat platform. The purpose of the present invention is to provide a lifting device that can accommodate the elongation of a moving chain.

[0009]

[Means to solve the problem]

The first idea of this idea was a pillar that was erected and a prism that was placed along the pillar so that it could move up and down. A rat platform, a support device for vertically moving the platform in parallel, and the support a drive device for the device, the support device having a horizontal shaft journalled on the platform; Furthermore, the same chain transmission device is provided on both ends of the horizontal shaft, and the chain The transmission device is placed on a vertical plane perpendicular to the horizontal axis, with one end connected to the root side of one column. A vertically oriented chain fixed to a column or foundation member can be rotated onto a platform. The water is hung on the upper side of the freely supported Frieschen foil and extends downward. It is hung under another chain wheel fixed to a flat shaft, facing vertically upward, and is attached to the other chain wheel. The other end is fixed to the column or a member connected to the column above near the wheel, and the drive device is This is a lifting device provided to rotate the horizontal shaft.

0010 The second idea of this idea is four pillars installed at the corners of the square, and the four pillars can be moved up and down freely. A platform placed on the platform and a support that moves the platform vertically a holding device and a drive device for the supporting device, the supporting device being pivotally supported on the platform. parallel first and second horizontal axes, and the same one is provided on both ends of the two horizontal axes. A chain transmission is provided, the chain transmission being vertically perpendicular to the horizontal axis. One end is fixed to the column or foundation member at the base of one column and is vertically The chain facing the direction is a free chain wheel that is rotatably supported on the platform. Below another chain wheel that is hung on the upper side and extends downward and fixed to the horizontal shaft. Hang on the side and facing vertically upwards, above the other chain foil near the column or horizontal member The other end is fixed to the shaft, and the drive device drives the first and second horizontal shafts to rotate synchronously. A lifting device is provided.

[0011] The third idea of this idea is a pillar that is erected and a platform that is movable up and down along the pillar. A rat platform, a support device for vertically moving the platform in parallel, and the support a drive device for the device, the support device having a horizontal shaft journalled on the platform; Furthermore, the same chain transmission device is provided on both ends of the horizontal shaft, and the chain The transmission device is placed on a vertical plane perpendicular to the horizontal axis, with one end connected to the root side of one column. A vertically oriented wire rope fixed to a column or foundation member at a platform A free pulley rotatably supported on a drum or a winding or It is wound up, extends downward, and is hung on the underside of another drum fixed on a horizontal shaft. The other end is oriented vertically and attached to the column or member connected to the column above the column near the other drum. is fixed, and the drive device is a lifting device installed to rotate the horizontal shaft. Ru.

0012 The fourth idea of this idea is four pillars installed at the corners of a square, and the four pillars can be moved up and down freely. A platform placed on the platform and a support that moves the platform vertically a holding device and a drive device for the supporting device, the supporting device being pivotally supported on the platform. parallel first and second horizontal axes, and the same one is provided on both ends of the two horizontal axes. A chain transmission is provided, the chain transmission being vertically perpendicular to the horizontal axis. One end is fixed to the column or foundation member at the base of one column and is vertically The wire rope facing the direction is a free pulley that is rotatably supported on the platform. Or it can be hung on the top of the drum and wound or rolled up, extending downward and fixed to the horizontal shaft. It is hung on the underside of other drums, wound and oriented vertically, and placed near the other drums. The other end is fixed to the column or horizontal member above the column, and the drive device is connected to the first and second horizontal shafts. This is an elevating device that is installed to drive the synchronous rotation of the

[0013]

【Example】 Embodiments of this invention will be described below with reference to the drawings.

[0014] Figures 1 to 3 show three views, Figure 1 is a side view, Figure 2 is a top view, and Figure 3 is a front view. be.

[0015] Four pillars 1, 1', 2, 2' are erected on the base plate 9 so as to form the corners of a square. A platform 4 is disposed between them so as to be movable up and down. Between the four pillars 1 and 2 and 1 The top portion between ' and 2' is rigidly connected by a horizontal member 14. The four pillars 1, 1', 2, 2' are Both are composite columns that combine angle type steel 34 and H type steel 35, and the angle type steel 34 The outer corners of the two sections are on the outside of the device, and a top plate 16 is welded to the top of both sections. The guide bar 3 hangs down along the H-shaped steel 35 of the column. The guide bar 3 is the top plate 16 The supporting member 37, which is fixed to the H-shaped steel 35 near the lower end, is inserted through the support member 37 to make it expandable and retractable. Supported. The bracket 38 fixed to the platform 4 is attached to the guide bar 3. It is fitted so that it can move up and down, and when viewed from the front (right side in Figures 1 and 2), it can be moved left, right, front and back. I can't move.

[0016] The platform 4 extends toward the front side from between the four pillars 2 and 2' and has a tip. An oblique introduction section 18 is provided to facilitate entry and exit of the vehicle. And the whole thing is a flat plate (Figure 2 shows the upper plate partially removed).

[0017] Next, a support device for vertically moving the platform 4 in parallel will be explained. The support device is the same transmission device on the front, rear, left and right sides. That is, each of the four pillars 1, 1', 2 , 2' have the same configuration.

[0018] Bearings 23 are installed near each of the four pillars 1, 1', 2, 2' on both sides of the platform 4. Parallel first and second horizontal shafts 5 and 6 arranged on a horizontal plane are rotated by a bearing 23. freely supported. The shaft 19 fixed to each bearing 23 is free to rotate. The chain wheel 8 is fitted. Axis 19 is parallel to horizontal axes 5 and 6 but is short. It does not span the left and right sides of the device. Chain wheels are attached to both ends of the first and second horizontal shafts 5 and 6. 7 are fixed respectively. Chain at each of the four pillars 1, 1', 2, 2' The chain 11 is hung on the wheel 7 and free chain wheel 8 and extends up and down, but what happens? The way to hang the chain 11 is the same in the pillar part, and the chain 11 is hung in the 1" part of the four pillars. When it comes to the base plate 9 of the foundation member, one end is at the base of one of the four pillars 1". The chain 11, which is fixed at a fixing point 12 and directed vertically upward, is attached to a free chain wheel 8. It is hung on the upper side, separated downward, facing downward, and hung on the lower side of the chain wheel 7. and move upwards away. A member facing vertically upward and directly above the chain wheel 7, i.e. At the fixing point 13 of the top plate 16 of the four pillars 1', the other end is attached to a chain tension adjustment device (Fig. (not shown).

[0019] The adjustment device for attaching the chain 11 to the top plate 16 is as shown in FIG. The male screw member 24 that fixed the pin 11 is inserted through the hole in the top plate 16, and the top plate 16 is seated. An adjustment nut 25 is screwed into the male threaded member 24 as a surface, and the adjustment nut 25 The tension of the chain 11 is adjusted by rotating.

[0020] Two pieces each of the same diameter are fixed to the horizontal shafts 5 and 6 near the bearings 23 on the four pillars 1 and 2, respectively. A chain 22 is hung between chain wheels 20 and 21. Chain 22 is pla It is inserted through a hollow chain guard 39 that is long in the front and back direction of the platform 4.

[0021] A drive device is provided in a rearwardly extending portion of the platform 4. That is, Motor deceleration that connects the brake motor and reducer installed on platform 4 Two chain wheels 27 of the same diameter fixed to the output shaft end of the machine 26 and one horizontal shaft 5 A chain 29 is hung between two fixed chain wheels 28 having the same diameter. The motor reducer 26, including the cover 31 that protects it, is The height has also been reduced to avoid interference with cars. on four pillars 1 or 1' A control panel 32 and an operation panel 33 for controlling the motor reducer 26 are attached. By operating the switch on the operation panel 33, the motor reducer 26 can be operated in forward or reverse direction or as a brake. The key is released and the speed is controlled.

[0022] Next, to explain the operation, when we talk about when the car is filled from an empty state, it returns to its original position. , the platform 4 is in the downward movement limit position, and its bottom surface is on the base plate 9. is in contact with Here, the car enters onto the platform 4 from the introduction part 18, and It is immobilized by rakes, wheel chocks, etc. When a car that should be parked later arrives operates the operation panel 33 to energize the motor reducer 26 and move the chain wheel 27 to the position shown in Fig. 1. When the chain wheel 28 is rotated counterclockwise through the chain 29, the chain wheel 28 is rotated in the same direction. Rotate to . The horizontal shaft 5 rotates counterclockwise and is fixed to the horizontal shaft 5. Rotate the chain wheel 20 in the same direction. Chain wheel 20 is connected via chain 22 Since the chain wheels 21 are rotated in the same direction and at the same speed, the horizontal axes 5 and 6 are rotated in the same direction and at the same speed. Rotate at speed. As a result, each chain wheel 7 rotates clockwise, so the chain wheel 7 rotates clockwise. At the part of the chain 11 that is upwardly away from the chain wheel 7, The platform 4 is suspended via a chain wheel 7, horizontal shafts 5, 6, and bearings 23. However, the part of the chain 11 that engages with the chain wheel 7 becomes shorter. , the chain 11 moves from the chain wheel 7 to the free chain wheel 8, and - The chain 11 between the chain wheel 8 and the lower fixed point 12 is connected to the chain wheel 7 and the upper The length increases by the amount of the shortening between the fixed points 13.

[0023] As a result of the above, the platform 4 is supported by the bearings 23 at four locations and maintained in a horizontal state. It rises vertically. Operate the operation panel 33 near the ascent limit position to activate the motor reducer 26. When the power is de-energized, the brake is automatically applied and the platform 4 stops.

[0024] At this point, the next waiting car enters onto the base plate 9.

[0025] To take out the car, first take out the car on the base plate 9 and operate the operation panel 33. When the brake of the motor reducer 26 is released, the platform 4 and the The weight of the car loaded thereon acts in the opposite manner to the above, and the platform 4 is lowered. At this time, either dynamically brake the motor reducer or use a centrifugal brake to lower the platform 4. It is appropriate to adjust the lowering speed. Also, do not place a car on platform 4. When platform 4 is placed in the raised position and used as a roof, platform 4 When lowering the Rotate it.

[0026] Although not shown in the figure, it can be operated manually in the event of a power outage, and like a normal elevator, it can be operated manually. Apart from the support device provided by the Control means may be provided to stop the descent of the

[0027] Next, a second embodiment of this invention will be described. The second idea is the first idea Each chain is attached to a wire rope, and each chain foil except the free chain foil is attached to a wire rope. Each wheel was replaced with a drum, and the Frieschen wheel was replaced with a pulley or drum. . The wire rope is then stretched as shown in Figures 1 and 2. To prevent slipping between the wire rope, the wire rope, and the drum, above) Wind it up. However, if a pulley is used instead of a free foil chain, it should be wrapped around it.

[0028] In this embodiment, since the drive device was provided on the platform 4, the platform 4 The driving force acts as an internal force, and applies a load as an external force to the platform 4. The platform 4 will not shake due to the driving force or an unbalanced load will be applied. Never.

[0029] Examples include a vertical chain or wire rope section and chain foil on each column, or It is safe because the drum or pulley is held, and it is easy to install even if a safety cover is attached. Finish.

[0030] "Other Examples" 6 and 7 show other embodiments. This example differs from the previous example in that the platform The pillars are placed only on one side of the room. In this embodiment, there are two pillars. Before The difference from the embodiment is that a saddle 41 is integrally provided on the platform 4. and is connected to the saddle 41 via a rotatable roller provided on the saddle 41 (not shown). Posts 1, 1' are engaged. The method of tensioning the chain 11, which is a feature of the present invention, is shown in the previous example. is the same as the chain wheel 7 and free chain wheel provided on both ends of the horizontal shaft 5. 8 and are stretched vertically.

[0031] Platform 4 is connected to pillars 1 and 1' by a car placed on platform 4. The saddle 41 generates a moment centering around the pillars 1 and 1', but the rotatable rollers Since it rolls on the top, it can be moved easily.

[0032] In each of the above embodiments, the part of the chain 11 hanging down from the free chain wheel 8 If you keep it loosely tensioned, platform 4 will fall when platform 4 is lowered. Even if the chain wheel 7 is further driven with something caught under it, force is applied to the chain 11. It is safe because it comes off from the chain wheel 7 without any damage. And if you do it like this In this case, the method of fixing the chain 11 at the fixing point 12 does not have to be strong, for example by using a tension It is also possible to fix the coil spring by interposing it without applying tension to it. In this embodiment as well, the chain is a wire rope and the chain wheel is a drum or plastic. It can be replaced with

[0033]

[Effect of the idea]

The first idea of this idea was as above, (1) The platform support device was fixed to the horizontal axis via a Frieschen foil. Hang the chain on the chain wheel, extend it up and down, and fix the top and bottom ends of the chain. Because of this, the chain is hooked at a large angle to the chain wheel, and the chain and chain wheel are The chain wheel has a large number of meshing teeth, so it is safe from wear on the chain wheel. (2) With the above configuration, the chain can be loosened by simply tensioning it in the vertical direction. . (3) The chain part that hangs between the free chain wheel and the chain wheel at the end of the horizontal shaft is short. Therefore, the length of the chain has little effect on motor function.

[0034] The second idea of this idea is (1) The four pillars were hung in the same way as the chain in the first design. Therefore, in addition to the effect of the first idea, the platform can be held firmly by using only the chain. It can support four corners. (2) Since almost no force acts in the lateral direction of the platform, the platform cannot be guided. It's easy and good. (3) The drive device, excluding the drive source, can be housed along the platform.

[0035] The third invention of this invention is that the chain and chain wheel are wired in the first invention. Since it is replaced with a rope and drum or pulley, it has the same effect as the first invention. In addition, it is easier to manufacture and produces quieter operation than the first invention.

[0036] The fourth invention of this invention is that the chain and chain wheel are wired in the second invention. Since it was replaced with a rope and a drum, it had the same effect as the second invention, and the production cost was reduced. Easy to operate and quiet operation.

[Brief explanation of drawings]

FIG. 1 is a side view of the embodiment.

FIG. 2 is a plan view of FIG. 1;

FIG. 3 is a front view of FIG. 1;

FIG. 4 is a side view of a conventional example.

FIG. 5 is a plan view of FIG. 4;

FIG. 6 is a plan view of another embodiment.

FIG. 7 is a plan view of FIG. 6;

[Explanation of symbols]

1, 1', 2, 2'...Four pillars 3...Guide bar 4
・・Platform 5, 6・・Horizontal axis 7・・Chain wheel 8・・Free chain wheel 11・・・Chain 1
2,13...Fixing point 14...Horizontal member 16...Top plate
18...Introduction part 23...Bearing 24...Male thread member
25...adjustment nut.

Claims (4)

[Scope of utility model registration request] 1. A system comprising an erected pillar, a platform disposed vertically movably along the pillar, a support device for vertically moving the platform in parallel, and a drive device for the support device, the support device is equipped with a horizontal shaft supported on a platform, and the same chain transmission device is provided on both ends of the horizontal shaft, and the chain transmission device has one end on a vertical plane perpendicular to the horizontal axis. The chain, which was fixed to the column or foundation member at the base of the column and oriented vertically, was hung above the free chain foil rotatably supported on the platform, extended downward, and fixed to the horizontal axis. It is hung under another chain wheel and faces vertically upward, and the other end is fixed to a column or a member connected to the column above the other chain wheel, so as to drive the drive device to rotate about the horizontal axis. Lifting device provided. 2. A platform comprising four pillars erected at the corners of a square, a platform vertically movable between the four pillars, a support device for vertically moving the platform in parallel, and a drive device for the support device, The support device includes first and second parallel horizontal shafts supported on a platform, and the same chain transmission device is provided at both ends of the two horizontal shafts, and the chain transmission device is connected to the first and second parallel horizontal shafts. On a vertical plane perpendicular to the horizontal axis, a vertically oriented chain with one end fixed to a column or foundation member at the base of a column is hung above a free chain foil rotatably supported on a platform. and extends downward and is hung on the underside of another chain wheel fixed to the horizontal shaft, facing vertically upward, and the other end is fixed to a pillar or horizontal member above the other chain wheel, The driving device is an elevating device provided to drive the first and second horizontal shafts to rotate synchronously. 3. A method comprising: an erected column; a platform disposed to be vertically movable along the column; a support device for vertically moving the platform in parallel; and a drive device for the support device. is equipped with a horizontal shaft supported on a platform, and the same chain transmission device is provided on both ends of the horizontal shaft, and the chain transmission device has one end on a vertical plane perpendicular to the horizontal axis. A vertically oriented wire rope fixed to the column or foundation member at the base of the column is hung over a free pulley or drum that is rotatably supported on the platform, and is wound or wound and extends downward. the other end is fixed to the column or a member connected to the column above the column near the other drum;
The drive device is an elevating device provided to rotate the horizontal shaft. 4. A platform comprising four pillars erected at the corners of a square, a platform vertically movable between the four pillars, a support device for vertically moving the platform in parallel, and a drive device for the support device, The support device includes first and second parallel horizontal shafts supported on a platform, and the same chain transmission device is provided at both ends of the two horizontal shafts, and the chain transmission device is connected to the first and second parallel horizontal shafts. On a vertical plane perpendicular to the horizontal axis, a vertically oriented wire rope with one end fixed to a column or foundation member at the base of a column is attached to the top of a free pulley or drum rotatably supported on a platform. It is hung on the bottom of another drum that is fixed to a horizontal shaft and is wound around or wound around the drum and extends downward, and is wound around the bottom of another drum that is fixed to a horizontal shaft, facing vertically, and is wrapped around a pillar or horizontally above a pillar near the other drum. The other end of the lifting device is fixed to the frame member, and the driving device is provided to drive the first and second horizontal shafts to rotate synchronously.