JP2002154075A - Magic hand - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manual type magic hand capable of softly holding an object located in a distant place with stable force. SOLUTION: A pair of holding members 4 each are formed with a front material 6 and a back material 7 made of a metal thin plate, their tip parts are mutually joined by directing the plate surfaces in the same direction, the base end side of each front material 6 is connected to an operation lever 2 through a connection rod 5, the base end side of each back material 7 is fixed to a haft 3, each front material 6 connected to the tip part of the back material is so energized as to be bent toward the back side by bending the back material 7, and the tip parts of the pair of holding members 4 are set close to or separated from each other by pulling the base end side of the front material 6 toward the hand by the operation lever 2, so that holding force is naturally adjusted by the flexure of the front materials 6 and the back materials 7 forming the holding members 4, and the object can softly and stably be held.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manual magic hand for grasping an object at a remote place.

[0002]

2. Description of the Related Art In a manual magic hand, a pair of gripping members facing each other are provided on the tip side of a handle, and a pair of gripping members are moved toward and away from each other by operating an operation lever provided on the hand side of the handle. , Used to grasp objects at remote locations. The gripping member of the magic hand is usually formed of a rigid body, and the operation lever is attached to face a handle provided on the handle side of the handle, and is connected to the operation lever by grasping the operation lever together with the handle. In many cases, the gripping member is moved.

On the other hand, in recent years, the care of the elderly and the handicapped has become a major social problem, and the lack of caregivers has led to the elderly and the handicapped being able to take care of themselves as much as possible. Various auxiliary devices have been developed. As one of these assistive devices, if a magic hand is developed that enables elderly people with weak legs to sleep, sit down, or take things away from them in a comfortable position, it will greatly contribute to society. be able to.

[0004] Since the elderly and the like have weak gripping forces as well as their feet and legs, there are many people who cannot finely adjust the operation lever like healthy persons. For this reason, when the gripping member is formed of a rigid body like a conventional magic hand, the object cannot be gripped with an appropriate force, and the gripped object is dropped or a fragile object is damaged. There's a problem.

In order to properly adjust the gripping force, it is possible to use computer control. However, since it is expensive and heavy, it is not suitable as a manual magic hand that can be used easily by elderly people. It is.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide a manual magic hand capable of holding an object at a distant place softly and with a stable force.

[0007]

In order to solve the above-mentioned problems, the present invention connects a pair of opposite gripping members provided on a tip side of a handle with an operation lever provided on a hand side of the handle,
By operating the operation lever, a tip end of the pair of gripping members is moved toward and away from each other. In the magic hand, at least one of the pair of gripping members is formed of two flexible elongated plates. With the plate surfaces of these plate members facing the direction of the gripping member of the other party, the front ends of both plate members whose plate surfaces are oriented in the same direction are joined to each other, and of the two plate members, The base end side of the front member facing the member and the front side is connected to the operation lever,
The base end side of the other back material, which is the back side of this front material, is fixed to the handle, the back material is formed of a spring material, and the front material is joined to the front material by a front end. When the operating lever is operated so as to bend toward the rear side and operate the operating lever to pull the base end side of the front member connected to the operating lever toward the proximal side, the distal ends of the pair of gripping members are brought close to each other. ,
In this configuration, the distal ends of the pair of gripping members are separated from each other when the operation lever is released.

That is, at least one of the pair of gripping members is formed of two flexible, elongated plate members whose tips are connected to each other with the plate surfaces facing in the same direction. Of the sheet materials, the base end of the front member facing the gripping member of the other party is connected to the operation lever, and the base end of the back member on the back side of the front member is fixed to the handle, and the back member is spring-loaded. When the base end side of the front material is pulled toward the hand side by the operating lever, the front end is urged to bend to the rear side at the distal end portion formed of a material and joined to the front material. When the distal ends of the pair of grip members are brought close to each other and the operating lever is released, the distal ends of the grip members are separated by the spring restoring force of the back member.

Therefore, in this magic hand, the front member and the back member forming at least one of the holding members are flexible, and the bending force naturally adjusts the gripping force.
An object can be stably gripped softly. In addition,
As a material of the back material, a thin metal plate having flexibility and spring properties can be used, and since the front material only needs to have flexibility, materials other than the metal material can also be used.

[0010] The front end of the front member and the front end of the rear member are connected by a pin inserted into a through hole formed in a plate surface of the front end of the front member. At least one hook member is pivotally attached to the front member and the back member so that the hook member is housed between the front member and the back member, and is protruded forward of the grip member by the rotation. Thus, the hook member can be extended forward of the gripping member as needed, and an object or the like at a distant place can be hooked or scraped.

By attaching a magnet to the tip of the hook member, a magnetic object at a remote place can be easily picked up. In addition, it can be used for sorting steel cans and aluminum cans, and the sorting work can be performed in an easy posture.

A plurality of the hook members are pivotally attached, and these hook members are extended in a rake shape in front of the gripping member, so that the hook members can also be used as a rake.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. This magic hand is
As shown in FIG. 1, a pair of opposed gripping members 4 are provided on the distal end side of a cylindrical handle 3 provided with a handle 1 and an operation lever 2 on the hand side, and the operation lever 2 and each gripping member 4 are connected to each other. A connecting rod 5 to be connected is passed through the handle 3. Each gripping member 4
Is formed of an elongated front member 6 and a rear member 7 each made of a thin metal plate having flexibility and spring properties. And the base end of each back member 7 is fastened to the square tube portion 3a at the tip of the handle 3, and the base end side of each front member 6 inserted into the square tube portion 3a is connected to the connecting rod 5. Have been.

The pair of gripping members 4 are attached such that the plate surfaces of the front member 6 and the back member 7 face the direction of the gripping member 4 of the mating member. Is provided. Each suction cup 9 is attached to the tip of a pin 8 that penetrates the front side of the front member 6.
Instead of attaching the suction cup 9, a rubber or the like having a high coefficient of friction is attached to the gripping surface of the front member 6, or the gripping surface is formed as a rough surface with irregularities so that the object to be gripped does not slip down. You may.

The pin 8 of one gripping member 4 is formed by bending a thin metal plate, and has a magnet 10
Is attached to the other hooking member 4, and the other holding member 4
The pin 8 has three hook members 12a, 12b, 12c having different lengths, which are also formed by bending a thin metal plate.
Is pivoted. Each hook member 11, 12a, 12b, 1
2c is rotatably connected to each pin 8 between the front member 6 and the back member 7 so as to be housed in the space between the front member 6 and the back member 7.

As shown in FIG. 2, the handle 1 is formed integrally with a hand member 13 fixed to the hand side of the handle 3 with screws 13a, and the operation lever 2 is provided with a shaft attached to the center of the hand member 13. It is pivotally attached to the pin 14 so as to face the handle 1. The shaft pin 14 has a torsion coil spring 15 which is in contact with the back side of the boring handle 1 and the operating lever 2.
Is attached, and urges the operation lever 2 in a direction away from the handle 1. The connecting rod 5 is connected by a pin 16 to the middle of the operation lever 2 with the base end pivotally connected thereto. By rotating the operation lever 2 toward the handle 1, the connecting rod 5 is connected to the proximal end of the handle 3. Is drawn to.

At the base end of the operation lever 2, a lock lever 18 which is locked to a two-step portion 17 provided on the hand member 13 is pivotally connected.
The rotation angle of the operation lever 2 urged by the above can be locked at two positions. When the rotation angle of the operation lever 2 is locked at a position indicated by a two-dot chain line in FIG.
As shown later by a dashed line in FIG. 3, the pair of gripping members 4 are close to each other, and the suckers 9 at the distal ends are held in a state where they are pressed against each other.

As shown by the solid line in FIG. 3, the back member 7 of each gripping member 4 is provided with a curved portion 7a which is curved to the rear at the base end side, and is connected to the distal end by its spring property. Each front member 6 is urged to bend in a direction away from each other.

When the operating lever 2 is turned toward the handle 1 and the connecting rod 5 is pulled toward the handle 3, each front member 6 whose base end is connected to the connecting rod 5 is connected to the square cylindrical portion 3 a. Drawn inward,
As shown by a dashed line in FIG. 3, the pair of gripping members 4 approach each other, and the suction cups 9 at the distal ends are pressed against each other. At this time, each front member 6 whose base end is drawn into the rectangular tube portion 3a.
Is straight, and the back member 7 having the front end connected to the front member 6 is greatly bent.

FIG. 4 shows a state in which the hook member 11 on which the magnet 10 is mounted is projected forward of the gripping member 4. As shown by the dashed line in FIG. 3, the pair of gripping members 4 are in a state where the suction cups 9 at the distal ends are engaged with each other by the lock of the lock lever 18, and the hook members 11.
The rigidity which supports is maintained.

FIG. 5 shows the three hook members 12a and 12a.
A state in which b and 12c are extended in a rake shape in front of the gripping member 4 is shown. Also in this case, the suction cups 9 of the pair of gripping members 4 are aligned with each other so as to maintain rigidity.

In the above-described embodiment, both the pair of gripping members are formed of the front and back members made of a thin metal sheet having flexibility and spring properties. The other member may be a normal rigid holding member. In addition, since the front material does not require spring properties,
A plate material other than metal, such as a plastic sheet, can also be used.

Further, a rigid connecting rod passing through a cylindrical handle is used as a connecting member between the operating lever and the front member.
The connecting member is not necessarily rigid, and a string, a wire, or the like may be used. These connecting members may pass through the outside of the handle, and in this case, the handle may have a solid rod shape.

Further, the connection between the front end portion and the front end portion of the back surface member is not limited to the pin connection of the embodiment, and any connection means such as bolt connection, welding, and adhesion can be adopted. It is not always necessary to match the front ends of the front and back members, and the front ends of the back members may be retracted from the front members.

[0025]

As described above, in the magic hand of the present invention, at least one of the pair of gripping members is connected to each other with the leading ends thereof facing in the same direction, and has two flexible members. And a base member of the front member facing the gripping member of the other member is connected to the operation lever, and a base member of the rear member on the back side of the front member is formed of the two plate members. With the side fixed to the handle, the back material is formed of a spring material, and the front material is urged to bend toward the back at the front end connected to the front material. Since the end side is pulled toward the hand side and the tip portions of the pair of gripping members are made to approach and separate from each other, the gripping force is naturally adjusted by bending of the front material and the back material forming the gripping member, and the gripping force is weak. Even an elderly person or the like can hold an object softly and stably. Of course, it is also easy to use for healthy persons.

The front end of the front member and the front end of the rear member are joined by inserting a pin into a through hole formed in the plate surface of the front end and joining the front member and the rear member. At least one hook member is pivotally connected between the front member and the back member so that the hook member is protruded forward of the gripping member by the rotation. The hook member can be extended forward of the gripping member as needed, so that an object or the like at a distant place can be hooked or scraped.

[Brief description of the drawings]

FIG. 1 is a partially omitted external perspective view showing an embodiment of a magic hand.

FIG. 2 is a partially cutaway front view showing a hand side of the magic hand of FIG. 1;

FIG. 3 is a partially cutaway plan view showing the tip side of the magic hand of FIG. 1;

4 is an external perspective view showing a state where one hook member of FIG. 3 is extended.

FIG. 5 is an external perspective view showing a state where the other hook member of FIG. 3 is extended.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Handle 2 Operating lever 3 Handle 3a Square tube part 4 Holding member 5 Connecting rod 6 Front member 7 Back member 7a Bending part 8 Pin 9 Sucker 10 Magnet 11, 12a, 12b, 12c Hook member 13 Hand member 13a Screw 14 Pin 15 Twist Coil spring 16 Pin 17 Step 18 Lock lever

Continued on the front page F term (reference) 3C007 DS01 ES03 ES13 EU11 EU14 EV14 EV18 LV10 3F060 AA01 CA24 FA01 GB01 HA23 3F061 AA01 BA03 BA13 BC15 BD10 BE24 BE32 DD02

Claims (4)

[Claims] 1. A pair of opposite gripping members provided on a tip side of a handle are connected to an operation lever provided on a hand side of the handle, and by operating the operation lever, the distal ends of the pair of gripping members are connected. In the magic hand for moving closer to and away from each other, at least one of the pair of gripping members is formed of two elongated plate members having flexibility, and the plate surfaces of these plate members are directed toward the gripping member of the other party. The distal ends of the two plate members whose plate surfaces are directed in the same direction are connected to each other, and the base end side of the front plate member facing the opposite gripping member on the front side of the two plate members is the operation lever. Connected to the handle, the base end side of the other back material that is the back side of this front material is fixed to the handle, the back material is formed of a spring material, and the front end is coupled to the front material, The front material is urged to bend to the rear side, and When the operating lever is operated so as to pull the base end side of the front member connected to the operating lever toward the hand, the distal ends of the pair of gripping members are brought close to each other, and when the operating lever is released, the pair of gripping members are gripped. A magic hand characterized in that a tip of a member is separated. 2. The method according to claim 1, further comprising: coupling a front end of the front member with a front end of the rear member.
Pins are inserted by inserting pins into through holes provided in the plate surface of both ends, and between the front material and the back material,
At least one hook member is pivotally connected to the front member and the rear member, and the hook member is extended between the front member and the back member so as to project forward of the grip member. The magic hand according to 1. 3. The magic hand according to claim 2, wherein a magnet is mounted on a tip of the hook member. 4. The magic hand according to claim 2, wherein a plurality of said hook members are pivotally attached, and these hook members are projected in a rake shape in front of said gripping member.