JP2010185196A - Device for lifting vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device which can lift and lower a railway vehicle while keeping it constantly horizontal without the need for special control, and which also is advantageous in cost and an arrangement space of a driving means. <P>SOLUTION: This device includes a parallel link mechanism 10, in which a fixed horizontal bottom member 11, a horizontal upside link 13 with a supporting member 14 for placing the railway vehicle A and a plurality of oscillating links 12 oscillating in a vertical plane and parallel to and identical in length with each other, are connected together. The vehicle A is lifted and lowered together with the supporting member 14 by displacing the parallel link mechanism 10. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The invention according to the claims relates to a vehicle lifting device that moves up and down for the purpose of storing a railway vehicle in a plurality of upper and lower stages.

  A garage for a rail vehicle is generally configured to store the vehicle in a plane on the ground. In recent years, however, the usefulness of a three-dimensional garage that stores vehicles in multiple upper and lower stages has been reviewed in the city center from the viewpoint of effective use of land. When a vehicle is stored in such a three-dimensional garage, a device for raising and lowering the vehicle is provided in the interior of the three-dimensional garage or in front and rear portions thereof.

  The three-dimensional garage is described in Patent Documents 1 and 2 below. In both Documents 1 and 2, an elevating device that elevates and lowers the vehicle is provided at the front of the vehicle storage portion of the three-dimensional garage. For example, in Patent Document 1, as shown in FIG. 4, a device W that lifts and lowers the vehicle A using a plurality of hoisting machines 6 is located at the front of the three-dimensional garage V. Further, in Patent Document 2, as shown in FIG. 5, a device Y that lifts and lowers the vehicle A by a plurality of hydraulic cylinders 7 is also installed at the front part of the storage portion of the three-dimensional garage X.

JP-A-6-10526 Japanese Patent Laid-Open No. 10-25919

  When the vehicle is lifted and lowered by a plurality of hoisting machines as in the lifting device shown in FIG. 4, a number of hoisting machines are required, which is associated with cost and arrangement space problems, and prevents the vehicle from tilting. It comes with control challenges for. That is, in order to raise and lower the vehicle while keeping the vehicle level, it is necessary to appropriately control the hoisting speed of each hoisting machine, which makes control difficult.

  Further, when the vehicle is lifted and lowered using a plurality of hydraulic cylinders as in the lifting device of FIG. 5, the speeds of the hydraulic cylinders must be accurately synchronized in order to keep the vehicle horizontal during the lifting and lowering. In the example of FIG. 5, the number of hydraulic cylinders is small. However, in order to reduce the size and weight of the frame (8 in the figure), a large number of hydraulic cylinders are required. , And control issues become serious.

  The invention according to the claims is to provide a preferred vehicle lifting device that replaces the conventional lifting device as a means for solving the above-described problems, and to solve the cost, the arrangement space, and the above-described control problems. is there.

  The vehicle lifting device according to the present invention lifts and lowers a railway vehicle, and includes a fixed bottom member, an upper link having a support member on which the vehicle is mounted, and a parallel and the same length that swing in a vertical plane. This includes a parallel link mechanism connected to a plurality of swing links, and displaces the parallel link mechanism (the swing link and the upper link) together with the support member (moving the support member in parallel). And) elevating the vehicle. A parallel link mechanism (also called a parallel crank mechanism) is a mechanism in which links of equal length are arranged on opposite sides and a plurality of links are connected by pins so as to form a parallelogram in one plane. Say. The parallel link mechanism in the apparatus of the invention fixes the bottom member (which may be a link-like member, but may be the ground or an integral part thereof), and the upper side link is arranged at an upper position opposite to it. (For example, arranged in a horizontal or nearly horizontal posture), and a plurality of swing links are connected between them to form a parallelogram.

In this apparatus, when a force is applied to the upper side link or the swing link, the parallel link mechanism is displaced, and the upper side link is translated to change its height without being inclined. Since the upper side link is provided with the support member as described above so that the railway vehicle can be mounted, the vehicle can be moved up and down by displacing the parallel link mechanism as described above. In addition, as said support member, although the rail which mounts a wheel may be provided, the cradle which supports some vehicle bodies other than a wheel may be arrange | positioned. Furthermore, you may make it comprise the principal part of an upper side link with vehicle itself.
Due to the action of the parallel link mechanism described above, in this device, the vehicle placed on the support member of the upper side link can always be kept up and down without special control. Further, in order to displace the parallel link mechanism, it is sufficient to apply a force to one of the swing links or the upper link, and it is not necessary to apply a force to all the swing links. The number of fluid pressure cylinders and the like can be reduced. It is also possible to displace all the parallel link mechanisms simultaneously with one hoist. If the number of driving means can be reduced in this way, there is an advantage that the equipment cost can be reduced and the arrangement space for the driving means and its peripheral devices can be afforded.
In general, the swing link is used by being raised and lowered from a state close to vertical to a state close to horizontal. However, such a swing range can be used in a constricted manner. If the swing link is long, the vehicle can be supported at each height level of three or more levels by dividing the swing range.

In particular, it is preferable that a rope is connected to the upper side link or the swing link of the parallel link mechanism, and the parallel link mechanism is displaced by pulling the rope to raise the vehicle.
In order to displace the parallel link mechanism to move the vehicle up and down, a force may be applied to the upper side link or the swing link by some driving means. However, as described above, it is preferable to apply a force by connecting a rope to the upper link or the swing link and pulling it with a hoisting machine or the like. This is because when the parallel link mechanism is displaced, each part of the upper link or the swing link is displaced both in the vertical direction and in the horizontal direction, so that it is suitable for transmitting force through a flexible rope. . If the force is transmitted by the rope, there is an advantage that the installation position of the driving means such as a hoist can be selected relatively freely.

It is particularly preferable that the rope is provided so as to be pulled along the guide.
When the rope is attached to the guide, the rope can be pulled from an arbitrary direction different from the direction of the force applied to the parallel link mechanism. Therefore, it becomes possible to install driving means such as a hoisting machine at an arbitrary position.

The guide to which the rope is attached follows the swing locus of the swing link at the side of the parallel link mechanism (that is, at a position close to the mechanism and a height equivalent to the range in which the mechanism is displaced). It is preferable to have a curved rope guide part provided in the vertical plane, with the lower part being vertical and the upper part being horizontal. The guide 21 shown in FIG. 2 is an example.
When a rope is attached to such a guide, a force for displacing the parallel link mechanism can be efficiently applied. The reason can be explained as follows.
i) When the upper link is moved up and down by displacing the parallel link mechanism, each part of the upper link and swing link is displaced while drawing an arc, and moves in a direction close to vertical at a low position and close to horizontal at a high position. It is common to do,
ii) When the rope attached to the guide as described above is connected to the upper link or swing link and pulled, the connecting portion between the rope and the link moves as shown in i) as the link is displaced. Therefore, when the link is in the lower position, the rope tension is applied to the link upward, and when the link is displaced upward, the rope tension is applied in a direction close to the horizontal.
iii) In other words, since the tension of the rope can be applied in the movement direction of the upper link or the swing link (or a direction close to it), the component force that does not contribute to the movement of the link is reduced, and much of the tension is It can be used efficiently for movement, ie displacement of the parallel linkage.

More preferably, a moving pulley is attached to the upper link or swing link of the parallel link mechanism, and the rope is hung on the moving pulley. Also in the example of FIG. 2, the rope 20 is hung on the movable pulley 23.
Using a moving pulley in this way halves the required rope tension compared to linking the rope to the link without using a moving pulley, or half when using another moving pulley in combination. It can be: Thereby, the cost required for the driving means can be reduced.

When the shape of the swing links (all or a part thereof) of the parallel link mechanisms as viewed from the direction perpendicular to the length direction of the upper side link has a space in which a railway vehicle can be arranged. Particularly preferred. For example, the swing links 12 and 12 ′ shown in FIGS. 3A and 3B are examples of such shapes.
In the example of FIG. 3A, the swing link 12 has a gate shape (a shape in which an upper horizontal portion and vertical portions on both sides thereof are continuous). And the upper side link 13 is connected with the horizontal part of the rocking | fluctuation link 12 via the connection pin. When the swing link is formed in such a shape, not only can one vehicle be placed on the support member of the upper link and moved up and down, but when the vehicle is raised, another vehicle is placed in the space below it. It can be stored and run. As a result, a large number of vehicles can be stored on a certain area of land, or vehicles can be efficiently delivered to a three-dimensional garage.
In the example of FIG. 3 (a), a portal ramen structure is used to withstand horizontal force when subjected to left and right forces during an earthquake or the like, but when there is a space at the joint with the bottom member, FIG. A type in which the swing link 12 'is a self-supporting column structure as shown in b) is also effective. In that case, a pallet-shaped upper side link 13 ′ is connected to the upper part of the swing link 12 ′ having only a vertical portion via a pin.

The above-described vehicle lifting device can be used as a vehicle storage means in a three-dimensional garage that stores railway vehicles in a plurality of upper and lower stages, or ascending / descending the vehicle up and down from the introduction path following the main rail to the height of each stage of the three-dimensional garage. It can also be used as a means.
In order to use the former, for example, in the example of FIG. 4 or 5, a vehicle lifting device is installed inside the three-dimensional garage V or X. In order to use the latter, for example, the above-described vehicle lifting device may be installed as a vehicle storage portion of the lifting device W or Y shown in the examples of FIGS. It is possible to store a large number of vehicles on a certain area of land or to efficiently deliver vehicles to a three-dimensional garage.

According to the vehicle lifting device of the invention, the railcar can be moved up and down by the action of the parallel link mechanism without performing special control. The number of driving means can be reduced to reduce the equipment cost and the arrangement space.
When the parallel link mechanism is displaced by pulling the rope, and particularly when the rope is pulled along the guide, the degree of freedom regarding the installation position of the drive means is further expanded. In addition, if the above-mentioned guide for attaching the rope is provided at an appropriate position and an appropriate-shaped rope guide portion is provided for the guide, the force of the drive means can be efficiently applied to the parallel link mechanism, and the drive The means can be reduced in size, cost and energy. If a moving pulley is attached to the link of the parallel link mechanism and a rope is hung on the moving pulley, the drive means can be further reduced in size, cost, and energy saving.
If the shape of the swing link of the parallel link mechanism is made appropriate, the vehicle can be stored and delivered particularly efficiently. The device of the invention brings about a significant effect both as a vehicle storage means for a three-dimensional garage and as a lifting means for raising and lowering the vehicle to the height of each step of the three-dimensional garage.

It is a side view which shows the whole about the vehicle lifting apparatus 1 by invention. The state which lifted the rail vehicle A is shown. It is an enlarged view of the II section in FIG. A state before the vehicle A is lifted is indicated by a solid line. It is the III-III arrow line view in FIG. 1, The state which lifted the vehicle A is shown as the continuous line. 3A shows an example in which the swing link has a portal structure, and FIG. 3B shows an example in which the swing link has a self-supporting column structure (because of left-right symmetry, the right half is not shown in FIG. 3B). is doing). It is side views, such as a three-dimensional garage containing the conventional apparatus which raises / lowers a vehicle. FIG. 10 is a side view of a three-dimensional garage or the like including another conventional device for raising and lowering a vehicle.

  1 to 3 show an embodiment of the invention. The illustrated vehicle lifting device 1 is a device that can raise and lower a train of railcars A and support it at any one of the upper and lower levels. By installing this device 1 in place of the lifting device W or Y in FIGS. 4 and 5, for example, a three-dimensional garage (for example, symbols V and X in FIGS. 4 and 5) having storage portions in two upper and lower stages is provided. The delivery of the vehicle A is facilitated.

  As shown in FIG. 1, in the vehicle lifting device 1, a plurality of parallel link mechanisms 10 are arranged continuously in the longitudinal direction of the vehicle A. Each of the parallel link mechanisms 10 includes a horizontal bottom member 11 fixed on the ground, a horizontal upper link 13 having a rail 14 as a vehicle support member, and a plurality of parallel and the same length that swing in a vertical plane. The swing link 12 is pin-coupled so as to form a parallelogram. The number of swing links 12 in each mechanism 10 is set to two or three in accordance with the length of the upper side link 13.

  In each parallel link mechanism 10, all the swing links 12 and the upper side links 13 are displaced by applying a force to the swing links 12. At this time, the swing link 12 swings around the connecting pin 12a (see FIG. 2) with respect to the bottom member 11 between a state where the swing link 12 is substantially horizontally hung and a state where the swing link 12 stands substantially vertically. As the swing link 12 swings, the upper side link 13 moves while drawing an arcuate trajectory, and moves the vehicle A up and down together with the rail 14 without tilting horizontally. In the illustrated vehicle lifting apparatus 1, the upper side links 13 in each mechanism 10 are connected to each other so that the upper side links 13 of all the mechanisms 10 move simultaneously while maintaining the level.

3A and 3B are views of the parallel link mechanism 10 and the like viewed from a direction perpendicular to the length direction of the vehicle A (and the upper side link 13 and the rail 14). The swing link 12 is formed in a gate shape as shown in FIG. 3 (a). When the swing link 12 is in a standing state, another (lifted) is provided on the inner side, that is, below the horizontal portion and between the left and right vertical portions. The dimensions are determined so that a railway vehicle (other than the vehicle A) can be passed by using a rail provided on the bottom member 11 separately from the rail 14. The upper side link 13 having the rail 14 is pin-coupled to the horizontal portion at the top of the swing link 12, but a recess 12b is formed in a part of the swing link 12 so that the height dimension of the mechanism 10 at the time of standing can be suppressed. And the upper link 13 is passed there.
FIG. 3B is an example in which the swing link 12 ′ is not formed into an integral gate shape as shown in FIG. . The lower portion of the swing link 12 ′ is provided with a large width in order to enhance the stability in the left-right direction, and is connected to the bottom member 11 by a connecting pin 12a. Then, a pallet-shaped upper side link 13 'is connected to the upper portion of the swing link 12' via another pin. Also in this example, when the swing link 12 ′ is in the standing state, another railway vehicle can enter inside.

  In each parallel link mechanism 10, one of the swing links 12 (or 12 ', the same applies hereinafter) is raised and lowered by pulling (or returning) with the wire rope 20 shown in FIG. The wire rope 20 connected to the swing link 12 of each mechanism 10 is pulled by a hoisting machine (not shown) installed on the right side of FIG. In the example of FIG. 1, seven hoisting machines are installed and used (however, it is possible to provide only one hoisting machine and simultaneously give equivalent pulling to all the wire ropes 20). Since the upper side links 13 (or 13 ′, the same applies hereinafter) of the mechanisms 10 are connected to each other, the mechanisms 10 are simultaneously displaced and the upper side links 13 are horizontal without special speed control or the like for each hoisting machine. Go up and down.

The wire rope 20 is attached as follows so that the swing link 12 can be raised even if the pulling force of the hoisting machine is small.
i) First, the wire rope 20 is attached to the guide 21 shown in FIGS. 1 and 2 between the winding machine and the swing link 12. As shown in FIG. 3, the guide 21 is provided just outside the swing link 12 so as to approach the mechanism 10, and is disposed at a height equivalent to the swing displacement height of the swing link 12 and fixed vertically. Further, as shown in FIG. 2, the guide portion 21 a in contact with the wire rope 20 has an arc surface centered on the connecting pin 12 a so as to follow a swing locus near the swing end of the swing link 12. When the wire rope 20 is attached to such a guide 21, the tension of the wire rope 20 is applied upward when the swinging link 12 is in a downward state, and the tension is applied when the swinging link 12 is displaced upward. Is acted sideways (right side in the figure), and the output of the hoisting machine can be efficiently transmitted to the mechanism 10 including the swing link 12.

  ii) As shown in FIG. 2, a pulley (moving pulley) 23 is attached to a portion of the swing link 12 near the swing end, and the wire rope 20 is hung on the pulley 23 and provided near the upper end of the guide 21. The tip portion is tied to the fixed point 22. If it does in this way, compared with the case where the pulley 23 is not used, the tension | tensile_strength of a required rope can be halved. In addition, it is good to arrange | position one wire rope 20 from the other by arrange | positioning a guide pulley (illustration omitted) on the guide 21 so that the wire ropes 20 before and behind the pulley 23 may not rub against each other.

According to the vehicle lifting device 1 configured as described above, when driving each of the hoisting machines, the upper side link 13 and the rail 14 on the upper side link 13 and the rail 14 thereon can be moved up and down without performing special control. It is possible to always support the railcar A at the height of either the upper stage or the lower stage while keeping it level. Therefore, when a three-dimensional garage having storage portions in two upper and lower stages is adjacent to the device 1, the vehicle A can be smoothly delivered to the storage portions of the respective stages.
The vehicle lifting device 1 introduced above has a significant effect by smoothly raising and lowering the vehicle A to and from the height of the upper and lower two levels and when entering and leaving the vehicle even when it is provided as a vehicle storage part in a three-dimensional garage. Demonstrate.

DESCRIPTION OF SYMBOLS 1 Vehicle lifting apparatus 10 Parallel link mechanism 11 Bottom part member 12 * 12 'Oscillation link 13. * 13' Upper side link 14 Rail (support member)
20 Wire rope 21 Guide 23 Pulley (dynamic pulley)
A Rail vehicle

Claims (7)

A vehicle lifting device for raising and lowering a railway vehicle,
A parallel link mechanism in which a fixed bottom member, an upper side link having a support member on which a vehicle is placed, and a plurality of swing links parallel to and having the same length swinging in a vertical plane, A vehicle lifting device characterized in that a vehicle is lifted and lowered together with the support member by moving a parallel link mechanism while keeping parallel to the bottom member.   The rope is connected to the upper link or the swing link of the parallel link mechanism, and pulling the rope displaces the parallel link mechanism to raise the vehicle. The vehicle lifting device as described.   The vehicle lifting apparatus according to claim 2, wherein the rope is pulled along a guide.   The guide to which the rope is attached is provided on the side of the parallel link mechanism in a vertical plane along the swing trajectory of the swing link, and the lower portion is close to vertical and the upper portion is close to horizontal. The vehicle lifting apparatus according to claim 3, further comprising a rope-shaped guide portion.   The moving pulley is attached to the upper side link or the swing link of the parallel link mechanism, and the rope is hung on the moving pulley. Vehicle lifting device.   The rocking link of the parallel link mechanism is characterized in that the shape viewed from a direction perpendicular to the length direction of the upper link has a space in which a railway vehicle can be placed inside. The vehicle lifting apparatus in any one of 1-5.   It is used as a vehicle storage means in a three-dimensional garage that stores railway vehicles in a plurality of upper and lower stages, or as a raising / lowering means for raising and lowering the vehicle to the height of each stage of the three-dimensional garage from the introduction path following the main rail. The vehicle lifting device according to any one of claims 1 to 6.

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