KR100597370B1 - Lifter for vehicle - Google Patents

Abstract

The present invention relates to a lift device for lifting a vehicle during maintenance work such as inspection and repair of the vehicle.

According to the present invention, the cylinder mounting posture in the device can be configured in a horizontal state by employing a rising and lowering mechanism using a link device interlocked with a cylinder, so that the overall ground height of the device can be lowered and the size of the device can be compactly configured. As a result, the maintenance workability of the vehicle can be greatly improved, such as allowing the vehicle to enter the device installed on the ground as it is, and the installation cost or production is eliminated due to the excavation of floor excavation work or entry ramps. It provides a vehicle lift device that can significantly reduce the cost.

Vehicle, maintenance work, lift device, cylinder, link device, ground clearance

Description

Lift device for vehicle {Lifter for vehicle}

1 is a front view showing the structure of a lift apparatus according to the present invention

Figure 2 is a side view showing the structure of the lift apparatus according to the present invention

3 is a plan view showing the structure of a lift apparatus according to the present invention;

Figure 4 is a perspective view of the main portion showing the configuration of the linkage in the present invention

5a to 5c is a front view showing a state of use of the lift apparatus according to the present invention

<Explanation of symbols for main parts of drawing>

10: base plate 11: bottom plate

12: X frame 13: cylinder

14: link device 15a, 15b: pin

16: hole 17: slot

18: first link bar 19: second link bar

20: link shaft 21: roller

22: frame axis 23: bush

24: cylinder bracket 25: cylinder holder

The present invention relates to a lift device for lifting a vehicle during maintenance work, such as inspection and repair of the vehicle, and more particularly, by adopting an ascending and descending mechanism using a linkage to lower the overall ground height of the device. The present invention relates to a vehicle lift apparatus that can significantly reduce its size, especially its height, thereby greatly improving the maintenance workability of a vehicle, and also significantly lowering installation and manufacturing costs.

In general, the lift device is a device that can lift the vehicle to a certain height from the ground during maintenance work such as inspection or repair of the vehicle to maintain various parts of the lower part of the vehicle body.

Such lift devices include a type having a plurality of vertical columns with a free lift, a type of lifting a lifting plate by having a pair of lifting plates with an X-shaped frame, among which lifting an X-shaped frame with a hydraulic or pneumatic cylinder. Many types are currently in use.

However, most of the existing lift devices are inclined to install the cylinders to ensure the smooth operation of the cylinders. Therefore, the height of the device (the initial height before the operation) must be increased, thereby digging the ground to fit the ground of the vehicle. After that, there is a disadvantage to install in it.

In other words, the initial installation cost, such as the need to perform a bottom excavation work for the installation of the lift device has a disadvantage that the installation work is also not easy.

In order to avoid the inefficient part of the ground excavation work, the lift device may be used after it is installed on the ground. In this case, the device should be equipped with a slope plate for entering the vehicle, or the device should be made wide in size to fit the wheel width of the vehicle. The overall size of the device and the structure is also complicated.

In addition, there is a disadvantage in that maintenance work is required such that the wheels must be around for driving so that the wheels can be correctly mounted on a pair of lifting plates when the vehicle enters, or the wheels must be moved after the wheels are raised.

Accordingly, the present invention has been made in view of the above, by adopting the lifting and lowering mechanism using the linkage interlocking with the cylinder to configure the cylinder installation posture in the device in a horizontal state, thereby reducing the overall ground height of the device It is possible to reduce the size of the device to be compact, thereby greatly improving the maintenance workability of the vehicle, such as allowing the vehicle to directly enter the device installed on the ground during maintenance, and floor excavation It is an object of the present invention to provide a lift device for a vehicle that can significantly reduce the installation cost and manufacturing cost by eliminating work or entry ramps.

The present invention for achieving the above object is a vehicle lift comprising a support plate and a bottom plate, a pair of X-shaped frame that is installed between the support plate and the bottom plate is folded and unfoldable, and the cylinder for the rise and fall of the support plate The apparatus further comprises a linking device comprising two bar members connected between the rod side of the cylinder and the X-shaped frame side to operate in conjunction with the operation of the cylinder to transmit the power of the cylinder to the frame side. do.

In addition, the linkage device may include a first link bar and a second link bar, one end of which is connected to an X-shaped frame in a pin and hole structure and a pin and slot structure, respectively, and the other of the first link bar and the second link bar. One end is tied together in a rotatable structure and is characterized by consisting of a link shaft connected to the rod side of the cylinder.

In addition, the first link bar of the link device is characterized in that the link shaft engaging portion of the front end can maintain the lifted posture relative to the pin engaging portion of the rear end in the device descending completion state.

In addition, the link shaft of the link device is characterized in that the roller is provided with a rolling contact with the bottom surface of the support plate during the initial operation of the cylinder.

In addition, the two bar members of the X-shaped frame is assembled by maintaining a predetermined interval in the width direction of the device by the bush fitted to the frame shaft.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 to 3 are a front view, a side view, and a plan view showing the structure of a lift apparatus according to the present invention.

As shown in FIGS. 1 to 3, the lift apparatus includes a support plate 10 that largely supports the vehicle, a bottom plate 11 fixed to the ground, and the support plate 10 and the bottom plate 11. It is connected to the pair consisting of a pair of X-shaped frame 12 for raising and lowering the support plate 10 through the folding and unfolding operation, and the cylinder means 13 as a driving means.

The support plate 10 is formed of a plate-like structure closed by covering an iron plate on a long rectangular frame member, which serves to directly support the bottom of the vehicle. The rolling reinforcement plate 10a having a predetermined thickness and an area is attached to the bottom of the central portion of the support plate 10.

The bottom plate 11 is also made of a plate-like structure similar to the base plate 10, and is directly fixed to the anchor bolt, etc. on the ground serves as the base of the entire device.

In addition, in the case of the bottom plate 11 has a width and length somewhat narrower than the width and length of the backing plate 10, the bottom plate 11 is partially accommodated in the interior of the backing plate 10 in the device descending completion state. In this way, the bottom plate 11 and the base plate 10 are combined in a partially overlapped state, thereby helping to reduce the height of the device.

Inside the frame member of the support plate 10 and the bottom plate 11, a plurality of brackets, rails, etc. are provided for connecting or accommodating end portions of the bar members of the X-shaped frame 12.

The size, in particular, the width of the support plate 10 or the bottom plate 11 is smaller than the width between both wheels of the vehicle. Therefore, when the vehicle enters the base plate 10 and the bottom plate 11, It can be located between both wheels, making it easier to position the vehicle on the device.

The X-shaped frame 12 is a portion that raises or lowers the support plate 10 while being operated by the power of the cylinder 13, and consists of two rod members intersecting in an X shape, and one end of each rod member. The hinge is fixed to the supporting plate 10 and the bottom plate 11 side, respectively, the other end is movable along the guide in the frame member of the base plate 10 and the bottom plate 11 using a roller. Will have

The X-shaped frame 12 is composed of a pair for supporting both width directions of the device, each pair of X-shaped frame 12 is coupled by a single frame axis 22 through the intersections horizontally at the same time It can be folded or unfolded.

In particular, as shown in Fig. 2, between the two rod members is provided with a bush 23 mounted on the frame shaft 22, the two membrane members can maintain a constant distance from each other, so that each pair of The two rod members constituting the X-shaped frame 12 can be arranged in a balanced manner along the width direction of the device and can support the entire narrow device in a relatively stable manner.

The cylinder 13 is a part that provides power for raising and lowering the device.

In one embodiment of the present invention, two rows of plural cylinders are provided, and a pneumatic or hydraulically operated type can be applied.

This cylinder 13 is hinged to the cylinder bracket 24 at the front end of the bottom plate 11, the rear end of the body, the rod of the front end to any one bar member side of the X-shaped frame 12 It is installed in a structure that is coupled through a link device 14 to be described later.

The rod member side engagement position of the cylinder rod at this time is set to the upper side (when unfolded) or the front side (when folded) than the intersection point of the rod member, ie, the point where the frame shaft 22 is engaged, and thus the cylinder 13 During the forward and backward operation of the X-shaped frame 12 is unfolded or folded it is possible to operate the whole device up and down.

The biggest feature of the lift apparatus provided in the present invention is the support plate 10 and the bottom plate by adopting the linking device 14 while maintaining the installation posture of the cylinder 13 (an attitude in the device descending completion state) in a substantially horizontal state. This is so that it can be accommodated completely in (11).

That is, when the lowering of the device is completed, the cylinder 13 is completely entered into the receiving plate 10 and the bottom plate 11 to be accommodated, the height of the device can be made of only the thickness of the base plate 10 and the bottom plate 11, Therefore, the overall height of the device can be greatly reduced to about 100 mm.

Here, the lift device of the present invention can be seen that the height of the lift device of the present invention is remarkably low, considering that the minimum height of the existing lift device is usually 300 mm or more, and the ground lift of the passenger vehicle is usually about 200 mm. In the case of the device, it can be seen that the vehicle can enter as it is.

Referring to the structure of such a link device 14 in detail as follows.

The link device 14 is composed of two bar members and one shaft member for combining them, as shown in FIG. 4, and at the same time, the bar members are connected to the cylinder 13 side through the X-shaped frame ( By being connected to any one rod member side of 12), by the operation of the cylinder 13 it is possible to fold and unfold the X-shaped frame 12.

That is, the link device 14 includes a first link bar 18, a second link bar 19, and a link shaft 20, and the first link bar 18 and the second link bar 19. Each one end is connected to the rod member side of the X-shaped frame 12 in the structure of the pin 15a and the hole 16, and the pin 15b and the slot 17, the first link bar 18 and The other end of the second link bar 19 is rotatably connected by the link shaft 20.

When the link structure of the link device 14 is described in more detail, as shown in FIG. 2, each pin (from each of the rod members disposed inwards from two rod members constituting the pair of X-shaped frames 12) 15a, 15b extends inward, and each pin 15a, 15b has a hole 16 and a slot 17 for the first link bar 18 and the second link bar 19. Each one end is coupled, and the other end of the first link bar 18 and the second link bar 19 overlap each other while the link shaft 20 is horizontally fastened and fastened to the first link. The bar 19 and the second link bar 19 can be combined integrally by the link shaft 20.

At this time, the link shaft 20 is coupled to the cylinder holder 25 mounted on the rod of the cylinder 13, so when the cylinder 13 is operated, the first link bar 18 and the second link bar 19 are The link axis 20 can be expanded or folded with a central axis.

Such a link device 14 is provided with a pair and each pair of link devices 14 are coupled together by one link shaft 20 to be operated simultaneously.

In addition, a roller 21 is mounted concentrically on the link shaft 20 of the linkage device 14, in which the roller 21 is in contact with the bottom surface of the support plate 10 during initial operation of the cylinder while supporting the support plate 10. ) Will be pushed up to a certain height.

That is, it is possible to apply the cylinder power to the support plate 10 side while eliminating the interference through the rolling motion during the initial operation of the cylinder side.

5A to 5C are front views showing a state of use of the lift apparatus according to the present invention.

As shown in FIG. 5A, the state before the operation of the lift apparatus is shown here.

The base plate 10 and the bottom plate 11 are overlapped in a partially overlapped state, and the cylinder 13 is completely stored inside thereof, while the linkage 14 is extended to almost 180 °. Since the height of the device can be maintained at the lowest state.

At this time, since the height of the device is about 100mm, the vehicle can enter the device as it is.

At this time, the first link bar 18 of the linkage device 14 is able to maintain the lifted posture because the link shaft engaging portion of the front end is slightly higher than the rear pin engaging portion. Even if the front end link shaft coupling point of) is close to the rear hinge coupling point and the horizontal state, when the cylinder 13 is operated, the operation direction may be upward depending on the rotation direction of the first link bar 18.

As shown in Fig. 5B, the lift apparatus is shown slightly lifted up here.

When the cylinder 13 is operated while the vehicle is completed to enter the lift apparatus, the first link bar 19 is rotated until an initial predetermined height until the slot 17 section of the first link bar 19 ends. The lift device is lifted by a process in which the roller 21 pushes up the bottom of the support plate 10. In this case, the cylinder 13 maintains a horizontal state to achieve an initial minimum ground height, and is then actuated to move the force upwards according to the rotational direction of the first link bar 19. After the function of 14) is finished, the force of the cylinder 13 is transferred to the X-shaped frame as it is.

As shown in FIG. 3C, the operation state of the lift apparatus is shown here, that is, the state in which the vehicle is completely lifted up.

As described above, the X-shaped frame 12 is gradually opened through the link device 14 by the forward operation of the cylinder 13, and the X-shaped frame 12, which is folded when the cylinder 13 is fully operated, is also When fully extended, the link device 14 also maintains a folded state of about 90 degrees.

When the lift of the lift device is completed, maintenance work such as inspection and repair of the vehicle can be performed from this time.

When the maintenance work is completed, the lift device is lowered by the reverse operation of the cylinder, and the vehicle is lowered to the ground.The wheel of the vehicle is first placed on the ground, and when the cylinder 13 is completed, the support plate 10 is the bottom of the vehicle body. Since you are completely out of wealth, you can complete all maintenance work by removing the vehicle from the lift.

In this way, the vehicle can be easily lifted by simply entering the vehicle according to the position of the lift device during maintenance work, and after the operation, only the vehicle can be pulled out as it is, thus making it easier to handle the vehicle. This makes it much easier.

In addition, since the lift apparatus of the present invention has a height that enables the normal entry of the vehicle, it is easy to install such as to eliminate the floor excavation work and the like, and the cost can be greatly reduced.

As described above, the vehicle lift apparatus provided in the present invention is capable of installing a horizontal posture of a cylinder as a driving source according to the adoption of a linkage device, thereby achieving a minimum ground height while lowering the overall height of the device. It can also be scaled down. Therefore, there is an advantage that can greatly improve the maintenance workability of the vehicle, it is possible to exclude the existing floor excavation work or entry slope plate has an effect that can significantly lower the installation cost or manufacturing cost.

Claims (5)

delete The support plate 10 and the bottom plate 11, a pair of X-shaped frame 12 is connected between the support plate 10 and the bottom plate 11 can be folded and unfolded, and the support plate 10 is raised and A bar member including a cylinder 13 for descending and connected between the rod side and the X-shaped frame 12 side of the cylinder 13 to be operated in conjunction with the operation of the cylinder to transfer the power of the cylinder to the frame side. In the vehicle lift apparatus further comprising a link device 14 made of, The link device 14 has a first link bar 18 having one end thereof connected to the X-shaped frame 12 in a pin 15a and hole 16 structure and a pin 15b and slot 17 structure, respectively. ) And the second link bar 19, and the other end of the first link bar 18 and the second link bar 19 are tied together in a rotatable structure and connected to the rod side of the cylinder 13 Lift device for a vehicle, characterized in that consisting of a shaft (20). The method according to claim 2, wherein the first link bar 18 of the link device 14 is configured to maintain the posture that the link shaft engaging portion of the front end is lifted relative to the pin engaging portion of the rear end in the device descending completion state. Vehicle lift apparatus characterized in that. The vehicle lift apparatus according to claim 2, wherein the link shaft (20) of the link device (14) is provided with a roller (21) capable of rolling contact with the bottom of the support plate (10) during the initial operation of the cylinder. delete

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