JP2007302476A6 - Arm slide type lifting device - Google Patents

Abstract

A lifting device capable of lowering a floor plate as a loading platform to the ground is devised, and contributes to simplification and labor saving of transportation during farming and a wide range of cargo handling operations inside and outside various factories.
A rotary shaft 3 is rotated through a small arm 4 by operation of an elevating cylinder 7, a main arm 5 fixed to both ends of the shaft is rotated and a tip rises, and intersects with a sub arm 6. The long holes made in the floor plate 1 and the support frame 16 are slid and moved up and down while maintaining the level. Further, the irregular structure of the sub-arm 6 makes it possible to raise and lower the floor plate 1 as a loading platform below the lower surface of the support frame 16. As a result, a simple cart with a lifting device was devised.
[Selection] Figure 4

Description

The present invention is a lifting device for loading and unloading luggage in a warehouse, a store, or various production factories, and also a device for lifting and lowering a wheelchair or the like as means for constructing a barrier-free structure.

At transport terminals and logistics bases, loading and unloading of trucks is usually done by forklifts or power gates installed on trucks. I can't find anything suitable for luggage. Moreover, as seen in Japanese Patent Application Laid-Open Nos. 2003-327393 and 2004-244000, speedy work is difficult, and the floor plate, which is a loading platform, does not come into contact with the ground, so that it is not possible to load and unload loads from the ground. .

In addition, forklifts and vehicles with power gates are expensive and require a certain level of skill when used, and the fact that they cannot be handled easily is also a difficulty for small businesses. Furthermore, from the viewpoint of becoming a via-free society in an aging society, we have created a long slope to eliminate the level difference. Is in the present situation.

Problems to be solved by the invention

There are a wide variety of cargo handling machines and devices that support mass transportation, but by inventing this lifting and lowering device that can lower the floor plate, which is the loading platform, to the ground, it is possible to load the cargo to the small truck loading platform in farm work or small-scale establishments. Contributes to simplification and labor saving of loading and unloading, storage work on warehouse shelves, and cargo handling work in stores and production factories. Today, as we face an aging society, we contribute to helping to become free of vias.

Means for solving the problem

First, this arm slide type lifting device is a mechanism that can lower the floor plate to the ground (and also to the basement), the main arm and the sub arm intersect and are connected by pins, and on the left and right sides of the floor plate An oval guide hole is formed in the part. In addition, an elliptical guide hole is also formed at the tip portion of each side surface of the pair of support frames, one end of each of the left and right main arms is fixed to the end of the rotating shaft, and the other end is the guide hole of the floor plate. Are connected by pins so as to be slidable. Since the sub-arm that intersects with it is an integral structure that can rotate at the center of the intersection so that the main arm is irregularly sandwiched, one end on the lower side is slidably connected to the guide hole of the support frame by a pin, The other end of the upper side is connected to the side surface of the floor plate, thereby inventing a mechanism for moving up and down to the ground (or lower) while keeping the floor plate horizontal.

This device can be used to lift and lower a wheelchair in a basic state where the floor plate is incorporated into the support frame body in an operable state. Can be lowered to below the ground (below the bottom of the support frame), a large caster is installed on the bottom of the support frame, and as a carriage with a lifting device, loading work from the ground is possible even in a narrow loading site There are great advantages that can be made.

Next, the arm slide type lifting device mechanism has been simplified and reduced in weight so that everyone can easily handle it. Furthermore, depending on the application, the hydraulic cylinder can be driven either manually or hydraulically, and the floor plate can be equipped with safety guards, handrails, caster stoppers, etc. as required. did. Preferred embodiments of the arm slide type lifting apparatus according to the present invention will be described below in detail with reference to the drawings.

BEST MODE FOR CARRYING OUT THE INVENTION

FIG. 1 is a basic view of an arm slide type lifting device, showing a plane (a) and a side surface (b), FIG. 2 is a main arm, FIG. 3 is a side view of the lifting device as a step elimination direction, FIG. 4 is a perspective view as a carriage with the lifting device, and FIG. 5 is a side view of the lifting device for high places.

An embodiment of an arm slide type lifting apparatus according to claim 1 will be described.

In FIG. 1, a plate support that supports a floor plate 1 serving as a loading platform of the present apparatus by connecting it to a pair of left and right arms 5 and 6 is provided in a parallel arrangement on both the left and right ends of the base portion 2. The pair of left and right support frames 16 form a U-shape in a plan view, and the floor plate 1 sized to fit into the internal space surrounded by the base portion and the left and right support frames 16 has a vertical direction. It can be raised and lowered up to a height H.

An embodiment of an arm slide type lifting apparatus according to claim 2 will be described.

Similarly, in FIG. 1, both ends of the rotary shaft 3 to which the small arm 4 is fixed are rotatably supported across the left and right support frames 16, and one end of the lifting hydraulic cylinder 7 is pin 12 within the support frame 16. The other end is connected to the small arm 4 by a pin 11, one end of the left and right main arms 5 is fixed to the end of the rotating shaft 3, and the other end is the left and right of the floor plate 1. Each side is connected with a pin 9, and the other end of the left and right arms 5, 6 a, 6 b and the floor plate as the small arm 4 and the rotating shaft 3 rotate in accordance with the expansion / contraction operation of the lifting hydraulic cylinder 7. 1 is configured to be movable up and down.

An embodiment of an arm slide type lifting apparatus according to claim 3 will be described.

1 and 2, the arm assembled to the lifting device is composed of a main arm 5 and sub-arms 6a and 6b, which intersect with each other and are connected by pins 10 fixed to the sub-arms. An oval guide hole 14 is formed in a portion near the tip of each side surface, an oval guide hole 15 is formed in an inner portion of each side surface of the pair of support frames 16, and one end of each main arm 5 is The other end is fixed to the end of the rotary shaft 3 and the other end is slidably connected to the guide hole 14 of the floor plate by a pin 9 (with an outer bearing), and the sub arms 6a and 6b intersecting the pin sandwich the main arm 5. As described above, the pin 10 is integrated with the central portion of the intersection, and is rotatable with the main arm 5. One end of the lower side 6b is slidably connected to the guide hole 15 of the support frame 16 by a pin 13 (with an outer bearing), and the other upper end is connected to the side surface of the floor plate 1 so that the floor plate is horizontally The height H is smoothly raised and lowered substantially vertically.

An embodiment of an arm slide type lifting apparatus according to claim 4 will be described.

In FIG. 3, one end of each of the left and right main arms 5 of the apparatus is fixed to the end of the rotating shaft 3, and the other end is connected to the floor plate 1 by a pin 9, and the sub arms 6a and 6b intersecting with the main arm 5 The main arm 5 can rotate with the pin 10 at the center so as to sandwich the pin. One end of the lower end 6b is slidably connected to the guide hole 15 of the support frame 16 by a pin 13 (with a bearing on the outside), and the other end of the upper side 6a is slidable through the guide hole 14 on the floor plate 1 side. By connecting with a pin 8 (with a bearing on the outside), the height H is drawn in an arc with a radius connecting the rotary shaft 3 and the tip pin 9 of the main arm 5 while keeping the floor plate 1 horizontal. Can be moved up and down. This can be utilized when it is not desired to create a gap between the upper surface of the step and the floor plate 1 such as when this apparatus is used for step elimination.

An embodiment of an arm slide type lifting apparatus according to claim 5 will be described.

In FIG. 4, casters 22 and the like are installed at the lower part of the apparatus support frame 16, and it is possible to use the transport and transportation of luggage and wheelchairs and the floor plate 1 to the ground G by the mechanism of claim 3. At that time, the reinforcing material 21 is put in the lower part of the base 2 and a foot type hydraulic pump is installed in the center of the base, and a handle and a handle are also installed. Also, necessary safety measures, such as a fall prevention fence, are taken on the floor plate 1 according to the application.

An embodiment of an arm slide type lifting apparatus according to claim 6 will be described.

In FIG. 5, for the purpose of raising and lowering the floor plate 1 to a height H, the link sub-arm 31 having the same distance as the link main arm 30 is alternately connected to the main arm 5 and the sub-arms 6a and 6b. The height can be increased. However, in this case, the connected link sub-arm 31 needs to have the same structure as the sub-arms 6a and 6b. It is relatively suitable for raising and lowering lightweight objects.

It is a basic view of an arm slide type raising / lowering apparatus, (a) is a top view (b) is a side view. It is an assembling relation diagram of the main arm and the sub arm. It is a side view of the raising / lowering apparatus for level | step difference elimination. It is a perspective view as a trolley | bogie with a raising / lowering apparatus. It is a side view of the lifting device for high places.

Explanation of symbols

H Height G Ground 1 Floor Plate 2 Main Body Base 3 Rotating Axis 4 Small Arm 5 Main Arm 6a, 6b Sub Arm 7 Lifting Cylinder 8 Connecting Pin 9 Slide Pin 10 Crossing Pin 11 Cylinder Rod Connecting Pin 12 Cylinder Fixing Pin 13 Support Frame Guide Pin 14 Plate side slide long hole 15 Support frame side slide long hole 16 Support frame 21 Base reinforcement 22 Caster 23 Handle 30 Link Main arm 31 Link Sub arm

Claims (6)

The plate support that supports the floor plate, which is the loading platform of the device, by connecting it to a pair of left and right arms, is viewed in a plan view by a base portion and a pair of left and right support frames provided in parallel at the left and right ends of the base portion. Arm slide-type lifting, characterized in that the shape is U-shaped, and the floor plate of a size that fits into the internal space surrounded by the base part and the left and right support frames is vertically movable apparatus. Both ends of the rotating shaft to which the small arm is fixed are rotatably supported across the left and right support frames, one end of the lifting hydraulic cylinder is fixed in the support frame, and the other end is connected to the small arm In addition, one end of the left and right main arms is fixed to the end of the rotating shaft, and the other end is connected to the left and right side surfaces of the floor plate with pins, respectively. 2. The arm slide type lifting apparatus according to claim 1, wherein the other end of the left and right arms and the floor plate are configured to be movable up and down as the arm and the rotation shaft rotate. The arm of the device intersects the main arm and sub arm and is pin-coupled, and an elliptical guide hole is formed in the portion near the tip of each of the left and right side surfaces of the floor plate, and each side surface of the pair of support frames An oval guide hole is also formed at the inner part of the guide. One end of each main arm is fixed to the end of the rotary shaft, the other end is slidably connected to the guide hole of the floor plate by a pin, and the sub arm that intersects with the main arm is located at the intersection center. It is a monolithic structure that can be rotated by the part. One end of the lower side is connected to the guide hole of the support frame by a slidable pin, and the other end of the upper side is connected to the side surface of the floor plate, keeping the floor plate horizontal and moving up and down substantially vertically The arm slide type lifting and lowering device according to claim 1 and 2. One end of each of the left and right main arms of the device is fixed to the end of the rotating shaft, the other end is connected to the floor plate with a pin, and the sub arm that intersects with it is an integral structure that can rotate at the center of the intersection with the main arm in between One end of the lower end is connected to the guide hole of the support frame by a slidable pin, and the other upper end is connected to the floor plate side guide hole by a slidable pin so that the floor plate The arm slide type lifting device according to claim 1, wherein the arm slide type lifting device is moved up and down by drawing an arc while keeping the horizontal position. The arm slide type lifting device according to claim 1, wherein a caster or the like is installed at a lower portion of the device support frame, and it is possible to move and carry luggage, wheelchairs, etc., and to lower the floor plate to the ground. . The arm slide according to any one of claims 1 to 5, wherein the link mechanism of the main arm and the sub arm is doubled and the floor plate can be lowered to the ground for the purpose of raising and lowering the floor plate to a high place. Type lifting device.

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