JPH0742074B2 - Traction device attached to heavy objects such as automobiles - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a towing device for lifting a heavy object, which is attached to a heavy object such as an automobile, a base or a base which is heavier than the heavy object.

[0002]

2. Description of the Related Art Conventionally, as a rotatable pulley provided in a towing device for lifting a heavy object, first, a pulley of a hoisting system (hanging system) is known.
In the invention of the pulley device with a movable frame of No. 267299, a known rotating structure in which a hanging ring (hook) is freely rotatable on a base frame on which a pulley is rotatably supported is added to a balloon of Japanese Patent Publication No. 63-15238. In the invention of the method of pulling up a suspended object, a structure using a universal joint that is both rotatable and swingable is disclosed.

Next, as an installation type (induction type) pulley, the invention of a towing device disclosed in Japanese Patent Laid-Open No. 3-95098 discloses a structure in which a pulley is rotatably installed on an upper surface of a frame. There is.

[0004]

SUMMARY OF THE INVENTION The lifting system described above is based on the object of the present invention, such as a heavy object such as furniture,
It is a structure that cannot be used when heavy objects such as tatami mats, household items, electric appliances, and other machines are transported to the room on the second floor or higher of the building by lifting wires.

Further, Japanese Patent Laid-Open No. 3-95098 is an invention that can be adopted because it has a structure in which a heavy object intended by the present invention can be conveyed by lifting a wire.

However, in the present invention, since the winding drum and the motor are not connected in the axial direction of the winding drum, there is a problem that the device becomes large or complicated. In addition, because of the increase in size, it is not suitable for mounting on a luggage carrier frame of each axle, for example, to transport luggage to a room on the second floor or higher of a building, and for the same purpose, it can be effectively used in a simple and versatile manner. However, if the structure is complicated, it requires skill to handle the structure, and no one can use it easily. Furthermore, the pulley is not provided with a guide rod for preventing the wire from slipping, which may cause the wire to come off the pulley.
This is where safety issues remain.

[0007]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a structure that can be easily attached to a vehicle carrier frame, that is, a small size, a simple structure, and easy handling. , Adopted the following configuration.

That is, the traction device mounted on a heavy object such as an automobile of the present invention is a mounting member for mounting on a heavy object such as an automobile, a casing for the winding unit / power unit provided with this mounting member, and this casing. A pulley provided on the upper surface of the pulley that is rotatable in the horizontal direction, and a hook locking device for a wire that is fixedly secured to the upper surface, and a tangential direction of the pulley below the inside of the casing. A winding drum having a central portion located directly below and winding the wire guided through the pulley, a motor provided in the casing for driving the winding drum, the pulley and the winding drum. And a pressing member that elastically presses the wire wound around the winding drum.

[0009]

Next, the operation of the present invention will be described focusing on the example of FIG. 4 (this is an example and not limiting).

That is, when carrying (lifting) a heavy object to an upper floor such as the fourth floor or the fifth floor of an apartment, first,
The pole B of the lifting device is erected on the verang A on the floor that houses the heavy object W, and the arm B1 thereof is projected outside the verang A. Then, using the suspension pulley C provided at the tip of the arm B1, one of the ropes D for pulling up the wire (not limited to the use of the rope) is lowered toward the pulling device, and the other end of the rope D is also used. To the ground (including the floor) E.

In this way, when the rope D descends, the hook detached from the stopper is locked to one of the ropes D. After this locking, when the other side of the rope D (that is, the rope end on the ground side) is pulled, the hook and the wire locked on one side of the rope D are pulled up toward the hoisting pulley C.

Then, when the rope D is further drawn,
The hook and wire reach the ground E via the hoisting pulley C.

In this way, the weight object W is held at the tip of the hook reaching the ground E through the holding tool F for holding the weight object.
Hold in.

When the heavy object W is clamped through the above operation, the motor of the towing device is turned on and the winding drum fixed to the output shaft of this motor is rotated, so that the wire is casing. Via a pulley that is rotatably mounted on the pulley (as described above, the pulley is free to rotate in the horizontal direction on the upper surface of the casing, so that the wire in either direction can be precisely described below). Of the wire, and the free end side of the wire is sequentially pulled up, and the heavy object W is sequentially lifted in the direction of the arrow.

The wire is successively wound around the winding drum via the pulley. At this time, the central portion of the winding drum is located immediately below the wire descending from the pulley, and A sufficient traverse space (distance) is formed between the winding drum and the winding drum, and the wire is pressed by the wire retainer with an appropriate elastic force (at a certain position. Therefore, an appropriate traverse is given to the wire, and the wire is wound around the winding drum almost uniformly. Further, the wire wound around the winding drum is pressed by the wire retainer to prevent the wire from loosening.

If the heavy object W reaches the vicinity of the veranda A on the predetermined floor through the above operation,
Guide this heavy object W to the veranda A, and then hold the holding tool F.
Is opened and the heavy object W is taken into the chamber A1.

When lowering another heavy object (not shown) from the room A1 to the ground E, the heavy object is stopped by the holding tool F and the other heavy object is unwound by rewinding the wire. After descending, another heavy object is released from the holding tool F.

On the other hand, when there is no article to be unloaded from the chamber A1, for example, the clutch of the motor is disengaged, and the wire, the hook and the clasp F are sequentially guided to the ground E by their own weight. it can.

The rope D is provided above and below the heavy object W,
It is also used as a guide for lifting and lowering wires.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a casing for a thin and rectangular winding unit / power unit having an opening / closing lid 2 below, which has a mounting member (not shown) mounted on a heavy object such as a vehicle 100. Is extremely compact.

On the upper surface of the casing 1 and at one end thereof, there is provided a pulley 3 which is rotatable in the horizontal direction of the upper surface, and at the other end thereof a rubber ring having appropriate elasticity. A stop 4 provided is provided.
In addition, the pulley 3 is provided with a guide rod 31 for preventing the delusion of the wire, which will be described later. Reference numeral 32 in the drawing denotes a pulley base for supporting the pulley 3.

A chamber 11 below the casing 1
Is provided with a motor 5 and a winding drum 6 that is directly connected to the output shaft of the motor 5, and a wire 7 wound around the winding drum 6 is elastically provided behind the winding drum 6. A wire retainer 8 is provided for pressing.

The wire retainer 8 is composed of a mounting shaft 81 pivotally mounted between brackets for the winding drum, and a stopper 82 swingably supported by the mounting shaft 81 via a spring 83. The stopper 82 has a structure in which it is elastically stopped by the wire 7 through the repulsive force of the spring 83, and prevents the wire 7 from deviating or returning (the configuration is an example. There is no limitation.) Further, as described above, when the wire 7 is sequentially wound around the winding drum 6 via the pulley 3, the central portion of the winding drum 6 is located immediately below the wire 7 that descends from the pulley 3. That a sufficient traverse space (distance, which will be described later) is formed between the pulley 3 and the winding drum 6, and the wire 7 is pressed by the wire retainer 8 with an appropriate elastic force. Therefore, an appropriate traverse is imparted to the wire 7, and the wire 7 is wound around the winding drum 6 almost evenly, and the traverse guide for the traverse and its auxiliary equipment and power are not required, This is a great help for simplifying the mechanism, downsizing the device, reducing the cost, and facilitating the handling.

The positional relationship between the pulley 3 and the take-up drum 6 has the following construction, which is an important construction of the present invention. That is, the central portion of the winding drum 6 is located immediately below the tangential direction of the pulley 3 and the wire 7 guided via the pulley 3 is rectified by the wire retainer 8 to correct the winding drum 6. It is configured to be evenly wound around. Further, a wire 7 is provided between the pulley 3 and the winding drum 6.
An optimum distance 9 is formed for traversing.

In the figure, 10 is a wire guide ring, 11 is a wire through hole formed in the upper surface of the casing 1, and 12 is a wire through hole.
Is a hook provided on the free end side of the wire 7. Again 1
Reference numeral 3 denotes a cover body provided on the upper surface of the casing 1.

[0027]

As described in detail above, according to the present invention, a rotatable pulley is provided above a thin and rectangular casing to be attached to a heavy object, and the center of the winding drum is located directly below the tangential direction of the pulley. Since the parts are located and the winding drum is of the motor connecting type, the following effects are obtained.

(1) It is compact and can be easily attached to, for example, a luggage frame of an automobile (vehicle).

(2) For example, if it is installed in an automobile, the wire can be pulled out in any direction by utilizing the free rotation of the pulley in the horizontal direction, and the wire can be pulled out regardless of the position of the automobile. Further, even in a narrow place, it is possible to lift or lower heavy objects.

(3) Since the central portion of the winding drum is located immediately below the tangential direction of the pulley and the wire retainer is provided, the wire can be wound around the winding drum substantially evenly.

(4) In particular, since the wire retainer is provided, a device for wire traverse is not required, which is useful for simplifying the structure, downsizing the device, simplifying the handling, and the like.

(5) Low cost.

(6) For example, even if it is installed in an automobile or the like, it does not interfere with the luggage carrier.

(7) It is safe with few failures.

[Brief description of drawings]

FIG. 1 is a partially omitted front view of the present invention.

FIG. 2 is an enlarged front view of a pulley.

FIG. 3 is an enlarged cross-sectional view showing the relationship between the winding drum and the wire retainer.

FIG. 4 is a schematic diagram showing an example of a state in which a heavy object is hung on an upper floor.

[Explanation of symbols]

 1 Casing 11 Chamber 2 Open / close lid 3 Pulley 31 Guide rod 32 Pulley base 4 Stopper 5 Motor 6 Winding drum 7 Wire 8 Wire retainer 9 Distance 10 Guide ring 11 Through hole 12 Hook 13 Cover body 100 Vehicle

Claims (4)

[Claims] 1. A mounting member to be mounted on a heavy object such as an automobile, a casing for a winding unit / power unit provided with this mounting member, and a casing provided on an upper surface of the casing and rotatable in the horizontal direction. A pulley and a stopper for hooking a wire fixed to the upper surface of the pulley, a central portion is located below the casing, and directly below a tangential direction of the pulley, and via the pulley. A winding drum that winds the guided wire, a motor that is provided inside the casing that drives the winding drum, a distance for wire traverse that is provided between the pulley and the winding drum, and A traction device that is mounted on a heavy object such as an automobile, including a pressing member that elastically presses a wire wound around a winding drum. 2. A traction device mounted on a heavy object such as an automobile according to claim 1, wherein the motor according to claim 1 is continuously provided in the axial direction of the winding drum. 3. A heavy object such as an automobile according to claim 1, further comprising a cover body detachably provided on the casing for concealing pulleys, stoppers, hooks, etc. provided on the upper surface of the casing according to claim 1. Traction device. 4. A traction device to be attached to a heavy object such as an automobile according to claim 1, wherein a guide rod for preventing wire delusion is provided on the wire winding side of the pulley of claim 1.