JP2005145712A - Heavy load lifting up device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lifting-up/dragging device capable of easily moving a heavy load such as a refrigerator in a small range by lever operation. <P>SOLUTION: A cargo receiving member 4a is disposed at the front end of a frame 4 having a wheel 2, a braking means 7 for preventing rotation of the wheel 2 to the forward travel side is disposed, and a handle member 5 extending backward in a low front and high back shape is mounted to the frame 4 side. The heavy load is lifted up about the wheel as the fulcrum, and can be dragged and moved every small range. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention is capable of lifting heavy objects such as vending machines, refrigerators, lockers and bookshelves in factories and offices by lifting one side of the heavy object alone, and rubbing while lifting one side of the heavy object alone. The present invention relates to a heavy lifting device that can be used for moving a small range.

For example, Patent Document 1, Patent Document 2, and Patent Document 3 listed below are proposed as the heavy lifting device.
Japanese Patent No. 2745214 Registered Utility Model No. 3023857 Registered Utility Model No. 3037086

The lifting and moving device such as a transported object shown in Patent Document 1 has a configuration in which a lifter device and a traveling block are movable, has a complicated configuration, is expensive, and is troublesome to operate.
The jack shown in Patent Document 2 merely lifts an article such as furniture in its place.
Moreover, the movable lever shown in Patent Document 3 cannot be used for moving heavy objects of 300 kg or more such as a vending machine with a configuration in which a fulcrum wheel is provided on the lever.

  In view of the above-described situation, the present invention intends to solve, for example, when moving a heavy object such as a vending machine disposed in a narrow position in close contact with a wall, one side of the heavy object is lifted alone. It is an object of the present invention to provide a lifting device for heavy objects that can be easily rubbed and rubbed while lifting one side by itself.

  In order to solve the above-mentioned problems, the present invention firstly provides a load receiving member at the front end of a frame that rotatably supports a wheel via an axle, and prevents the wheel from rotating forward, thereby preventing the wheel from moving backward. A one-way braking means that allows rotation to the rear is provided, and a handle member that extends rearward in a front, rear, and rear shape is rotatably attached to the axle, and the rearward rotation of the handle member is prevented. Since the locking means is provided, the heavy object can be rubbed out toward the operator who operates the handle only by moving the handle up and down while slightly lifting the near side of the heavy object.

Secondly, it is characterized in that a plurality of wheels are arranged side by side in the lateral direction, and the heavy lifting device can be operated stably in the right and left direction.
Thirdly, the one-way braking means is configured by a U-shaped gate-shaped member that is pivotally supported by the frame, and the lateral member of the portal-shaped member is rolled over the wheel, One-way braking means can be configured with a simple and inexpensive configuration, and braking can be easily released.
Fourthly, it is characterized in that the tilting operation posture of the handle member can be switched between the steep tilting posture state side and the gentle tilting posture state side, so that the handle member can be used in a wide area with sufficient margin behind the normal operator. It is possible to operate in a narrow place where there is no room behind the operator by operating in the inclined posture state side, and it can be operated in the steep inclined posture state side, and can be flexibly handled according to the situation of the place.

Fifth, when the lifting device is lifted and rubbed by lifting and lowering the handle while facilitating the positioning movement of the lifting device to the lower part of the heavy load by configuring the outer periphery of the wheel with a hard member with less elasticity, The rubbing operation can be performed stably with the thing which does not bounce in the delirium.
Sixth, the axle is arranged at the middle position in the front-rear direction of the frame, and a portal member as a one-way braking means is pivotally supported behind the axle, and the handle member is pivoted forward of the axle. The locking means for preventing the rotation is pivotally supported, and the brake set of the one-way braking means and the attitude set of the handle can be easily made by skillfully using the frame supporting the wheels.

  Seventh, the frame has a pair of horseshoe-shaped frame bodies arranged side by side with a gap in the left and right sides, and the front end opening side is fixed to the load receiving member and the rear end side is connected to the connecting member. It is configured to be connected to each other, and the wheel is positioned in each frame body, and the base part of the handle member is positioned in the adjacent gap space space of each frame frame body, effectively utilizing the frame configuration Thus, the wheel and the handle member can be arranged to be compact.

According to the first aspect of the present invention, the floor surface is slightly raised and inclined only by operating the handle up and down while slightly lifting the front side of the heavy load by preventing the wheel from rotating forward. Even if it is, the heavy object can be rubbed out toward the operator who operates the handle.
According to the second aspect of the present invention, with the configuration in which a plurality of wheels are arranged side by side, it is possible to operate the lifting and rubbing device for lifting heavy objects with good left-right balance.
According to the invention of claim 3, by configuring the one-way braking means with a gate-shaped member, braking can be easily released with a simple and inexpensive configuration.
According to the invention of claim 4, the handle member is operated with the handle member tilted in a gently sloping posture state side for use in a wide place with sufficient margin behind the operator, and the operator is operated in a narrow place with no margin behind the operator. Since it can be operated in the steeply inclined posture state, it can be used according to the situation of the place.

According to the fifth aspect of the present invention, the outer periphery of the wheel is made of a hard member having little elasticity, so that the lifting and rubbing device can be easily moved and moved to the lower part of the heavy object, and the handle is lifted and rubbed up and down. When the operation is performed, the lifting and rubbing device prevents the bouncing from being unreasonable so that the rubbing operation can be performed stably.
According to the invention of claim 6, the brake set of the one-way braking means and the attitude set of the steering wheel can be simplified as a compact configuration by skillfully using the frame supporting the wheels.
According to the seventh aspect of the present invention, the wheel and the handle member can be arranged compactly by effectively utilizing the arrangement of the component members of the frame while strengthening the configuration of the frame.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Reference numeral 1 denotes the whole heavy lifting device according to the present invention. The lifting device 1 is provided with a tongue-shaped load receiving member 4a in an L-shape in a side view at the front end of a frame 4 that rotatably supports a wheel 2 via an axle 3. The axle 3 is constituted by a bolt member that is horizontally mounted at a middle position in the front-rear direction of the frame 4, and a plurality of wheels 2 are juxtaposed in the lateral direction, and a base portion of a handle member 5 described later is disposed between the wheels 2 and 2. It is pivotally supported. The wheels 2, 2 and the handle member 5, the positioning collars 6, 6, 6, 6 and the like are skewered by a single axle 3 and supported by the frame 4 to facilitate assembly and disassembly work. Considered to be able to.

The frame 4 has a front end opening 4c welded to the load receiving member 4a in a state where a pair of horseshoe-shaped frame frames 4b are arranged side by side with a gap on the left and right sides, and the rear end 4d is plate-like. It is configured to be firmly connected by being welded by the member 4e, and is realized in the sturdy frame 4 by skillfully molding and combining light weight plate-like members.
The wheels 2 and 2 are positioned on the respective horseshoe-shaped frame frames 4b and 4b, and the base of the handle member 5 is positioned in the adjacent space space between the frame frames 4b and 4b. The components of the frame 4 are effectively used.

Further, the outer periphery of the wheel 2 is made of a hard member such as hard rubber, leather product, synthetic resin, etc., which has little elasticity, which makes it easy to lift and squeeze the heavy object and to pull the heavy object. It is designed to resist bounce and reaction during rubbing work.
Next, a gate-shaped member 7 formed in a U-shape in plan view whose base is pivotally supported 7 a on the rear side of the frame 4 is positioned on the upper half side of the wheel 2. 7b is freely switchable between a braking action posture position A where the wheel 2 rolls up and a braking release posture position B which comes into contact with the handle member 5, and when the portal member 7 is set to the braking action posture position A, the lateral member 7b comes into contact with the upper side of the wheel 2 and bites into it, preventing the wheel 2 from rotating forward (counterclockwise in FIG. 1) and allowing it to rotate backward (clockwise in FIG. 1). One-way braking means.
Accordingly, until the load receiving member 4a of the lifting device 1 is inserted below the heavy load, the one-way braking means 7 is kept at the brake release posture position B, and the load receiving member 4a is inserted below the heavy load to be moved. When this is done, the one-way braking means 7 is manually switched to the braking action posture position A.

As described above, the base portion of the handle member 5 that is positioned in the middle of the left and right sides of the frame 4 in a plan view and extends rearward in the front, rear, and rear height in the side view is rotatably mounted. A gripping portion 5a is provided at the rear end of the handle member 5, and a pinned pin member 5b is mounted in the vicinity of the base side.
A base portion of a loop-shaped locking member 8 located below the base portion side of the handle member 5 is pivotally supported 8 a on the front side of the frame 4. When the handle member 5 is tilted rearward, the front end loop portion 8b of the locking member 8 is engaged to become locking means for preventing the handle member 5 from rotating backward. The tilting operation posture of the handle member 5 is a steep tilting posture state in which the tip loop portion 8b of the locking member 8 is hooked on the hooked pin member 5b as shown by a chain line in FIG. 1, and a solid line in FIG. As shown in FIG. 4, the switch is configured to be freely switchable to a gently inclined posture state located below the pinned pin member 5b, and the handle member 5 and the locking member 8 are individually manually rotated. Easy to operate without tools.

Next, the operation of the heavy lifting device 1 according to the present invention will be described.
As shown in FIG. 4, the load receiving member 4 a of the device 1 of the present invention 1 is inserted in front of a heavy object (such as a vending machine) W to be moved, and the one-way braking means 7 is brought down to the braking action posture position A. In this state, when the handle member 5 is tilted rearward, the load receiving member 4a can lift up the front side of the heavy object W and lift it upward. At this time, if the wheel 2 has no braking means, the weight of the heavy object W is received, and an eccentric force acting in the direction in which the wheel 2 is rubbed below the heavy object W acts, but the one-way braking means 7 is set on the wheel 2. Therefore, the forward braking action is effective, and the wheel 2 can lift the near side of the heavy object W straightly without rotating to the forward side.

  In this state, as shown in FIG. 5, the handle member 5 is operated up and down while the near side of the heavy load W is lifted by the load receiving member 4a. That is, after the handle member 5 is pushed down with the axle 3 of the wheel 2 as a fulcrum to lift the heavy object W once and then de-energized as if the force is temporarily removed, a series of operations of pulling the handle member 5 toward the front almost simultaneously. By repeating rhythmically in a timely manner, the heavy load W is lifted by the load receiving member 4a, and the rearward rotation of the wheel 2 is caused, and it is rubbed out to the near side and moved in a small range in small increments. . The proposed device 1 is a compact device that is light in weight and does not require space, and can be easily loaded on a loading platform of a cargo handling truck or the like.

  It can be used for lifting heavy objects in all fields such as vending machines, refrigerators, store weight display cases, factory and office lockers, bookshelves, and small-range movements that are rubbed while lifting the heavy objects. The one-way braking means for the wheel, the locking means for the handle member, the frame configuration and the like are not limited to the embodiment of the present invention, and can be changed within the scope of the technical idea of the present invention.

It is a schematic side view of the lifting device for heavy objects. It is a schematic plan view same as the above. It is a side external view of the principal part. It is external appearance explanatory drawing which shows the state before an effect | action start. It is external appearance explanatory drawing which shows the state in the middle of an action start.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lifting apparatus 2 Heavy wheel 3 Axle 4 Frame 4a Load receiving member 5 Handle member 6 Collar 7 Unidirectional braking means 8 Locking member

Claims (7)

  A load receiving member is provided at a front end of a frame that rotatably supports the wheel via an axle, and a one-way braking unit that prevents the wheel from rotating forward and allows backward rotation, and Lifting a heavy object characterized in that a handle member extending rearward in a front, rear, and rear shape is pivotally attached to the axle and a locking means for preventing the handle member from rotating backward is provided. apparatus.   The heavy lifting device according to claim 1, wherein a plurality of wheels are arranged side by side in the lateral direction.   2. The unidirectional braking means comprises a U-shaped gate-shaped member in plan view that is pivotally supported by a frame, and the lateral member of the portal-shaped member is brought into rolling contact with the upper side of the wheel. Heavy lifting equipment.   2. The heavy-lifting device according to claim 1, wherein the handle member tilting operation posture is switchable between a steep tilting posture state side and a gentle tilting posture state side.   2. The heavy lifting device according to claim 1, wherein the outer periphery of the wheel is made of a hard member having little elasticity.   An axle is arranged at an intermediate position in the front-rear direction of the frame, a gate-shaped member as a one-way braking means is pivotally supported behind the axle, and the handle member is prevented from pivoting rearward in front of the axle. 2. The heavy lifting device according to claim 1, wherein the stop means is pivotally supported.   The frame is a form in which a pair of horseshoe-shaped frame bodies are arranged side by side with a gap in the left and right sides, and the front end opening side is fixed to the load receiving member and the rear end side is connected by a connecting member. 2. The heavy lifting device according to claim 1, wherein a wheel is positioned in each frame frame, and a base portion of the handle member is positioned in an adjacent gap space space of each frame frame.

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