JPH0724744A - Screwdriver - Google Patents

Abstract

PURPOSE:To mount/demount a screw, etc., easily even in a very narrow space. CONSTITUTION:The tip part 2 of a screwdriver, which is a can be bent in a L letter shape in relation to the stem 1 side of the screwdriver at a part of a screwdriver bending mechanism 5. The screwdriver stem part 1 and the screwdriver tip part 2 are covered by a screwdriver stem part cover 3 and a screwdriver tip part cover 4, which are supported rotatably by the screwdriver bending mechanism 5. A screwdriver stem part gear 6 and a screwdriver tip part gear 7 are meshed with each other at a part of the screwdriver bending mechanism 5. The screwdriver stem part 1 and the screwdriver tip part 2 are supportingly jointed by the screwdriver bending mechanism 5 and the meshing of the screwdriver stem part gear 6 with the screwdriver tip part gear 7 and also the rotation of the screwdriver stem part 1 is transmitted to the screwdriver tip part 2 through the screwdriver stem part gear 6 and the screwdriver tip part gear 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driver, and more particularly, to a bendable driver which is used by bending the tip of the driver.

[0002]

2. Description of the Related Art Conventionally, in a driver, as shown in FIG. 6, the rotation of a driver handle 9a of a driver 9 is directly transmitted to a driver tip 9b, and a screw or the like is attached and detached by the rotation of the driver tip 9b. Is going.

[0003]

In the above-mentioned conventional driver, the center of the driver handle and the center of the driver tip are on the same central axis so that the rotation of the driver handle can be transmitted to the driver tip as it is. is there.

Therefore, it is necessary to provide a space for rotating the driver handle at the position where the screw or the like is attached and detached, and the driver is used when the space cannot be obtained or when the hand cannot be obtained. There is a problem that you can not.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned problems and to provide a driver capable of easily attaching and detaching screws and the like even in a very narrow space.

[0006]

SUMMARY OF THE INVENTION A driver according to the present invention is a shaft member having a tip portion having a projection fitted in a groove provided in a head portion of a screw member, and a handle for transmitting rotational movement to the shaft member. And a bending mechanism that allows the shaft member to be bent in an L-shape at a position of a predetermined length from the tip portion, and a handle member in a state where the shaft member is bent in an L-shape. And a transmission mechanism capable of transmitting rotational movement to the tip portion.

[0007]

An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an external view showing an embodiment of the present invention. In the figure, in a driver according to an embodiment of the present invention, the driver bending mechanism 5 can bend the driver tip 2 side into an L-shape with respect to the driver handle 1 side.

In the driver bending mechanism 5, the driver handle gear 6 provided on the driver handle 1 side.
And the driver tip gear 7 provided on the driver tip 2 side mesh with each other.

Here, the driver handle 1 and the driver tip 2 are covered with a driver handle cover 3 and a driver tip cover 4, and the driver bending mechanism 5 includes the driver handle cover 3 and the driver tip cover 4. It is pivotally supported. As a result, the driver handle 1 and the driver tip 2 are supported and coupled by the driver bending mechanism 5, the driver handle gear 6 and the driver tip gear 7 meshing with each other.

Therefore, when the driver handle 1 is rotated,
The rotation is transmitted to the driver tip gear 7 through the driver handle gear 6, and the driver tip 2 is rotated by the rotation of the driver tip gear 7. That is, the driver handle gear 6 and the driver tip gear 7 constitute a rotation transmission mechanism of the driver handle 1.

FIG. 2 is a diagram showing the structure of a rotation transmission mechanism according to an embodiment of the present invention. In the figure, the concept of meshing between the driver handle gear 6 and the driver tip gear 7 is shown.

The driver handle gear 6 is a bevel gear, and the driver tip gear 7 is a plurality of prisms planted so as to mesh with the driver handle gear 6 along the outer circumference of the shaft on the driver tip 2 side. It is composed of teeth.

Therefore, no matter what angle the driver tip portion 2 side is bent with respect to the driver handle 1 side in the driver bending mechanism 5, the driver handle gear 6 is provided.
And the driver tip gear 7 are meshed with each other.

FIG. 3 is a diagram showing the structure of the driver bending mechanism 5 of FIG. In the figure, the driver bending mechanism 5 is represented by a driver handle cover 3 and a driver tip cover 4.
Is rotatably supported.

A fixing metal fitting (not shown) (for example, a screw) is provided on the shaft support portion, and by tightening the fixing metal fitting, the driver tip portion 2 is bent at any angle with respect to the driver handle portion 1. However, it can be fixed at that position. The driver tip 2 and the driver handle 1
If it is not necessary to fix the bending angle with the above, the above-mentioned fixing metal fittings may not be provided.

In any case, the driver bending mechanism 5 is configured to foldably connect the driver handle 1 and the driver tip 2 while keeping the driver handle gear 6 and the driver tip gear 7 in mesh with each other. Has been done.

FIG. 4 is a vertical sectional view of an embodiment of the present invention. In the figure, a driver handle 1 and a driver tip 2
The respective shafts are housed in the driver handle cover 3 and the driver tip cover 4, and the driver handle 1 and the driver tip 2 are not directly coupled, but the driver bending mechanism 5 and the driver handle gear 6 and the driver It can be seen that they are supported and coupled by meshing with the tip gear 7.

As a result, when the driver handle 1 rotates, the rotation is transmitted to the driver tip gear 7 via the shaft of the driver handle 1 and the driver handle gear 6, and the driver tip gear 7 and driver tip. It is transmitted to the driver tip portion 2 through the shaft portion of the portion 2. In this case, the driver handle cover 3 and the driver tip cover 4 do not rotate together even if the driver handle 1 rotates.

FIG. 5 is a diagram showing a usage example of an embodiment of the present invention. In the figure, when the screw 8 is attached to and detached from the attachment surface B in a space where the entire length of the driver does not enter due to the obstacle A, the driver tip 2 side is L with respect to the driver handle 1 side. The screw 8 can be attached to and detached from the attachment surface B by bending it in a V shape and fitting the driver tip 2 into the groove of the head of the screw 8.

In this way, the driver handle 1 and the driver tip 2 are supported and coupled by the driver bending mechanism 5 and the driver handle gear 6 and the driver tip gear 7, and the driver tip 2 is screwed into the driver handle 1. 5 and the driver handle gear 6 and the driver tip gear 7 transmit the rotation of the driver handle 1 to the driver tip 2 so that the driver handle 2 can be bent in a very narrow place, as shown in FIG. The screws 8 and the like can be easily attached and detached in places where the hands cannot be sufficiently inserted or where the conventional linear type driver cannot be inserted.

Particularly, in a spacecraft such as an artificial satellite, since the mounting space for the onboard equipment is limited, the onboard equipment must be installed and removed in a very narrow space. The example driver is useful in such cases.

The driver handle portion 1 and the driver tip portion 2 are also provided.
To improve the function and performance as a driver by providing a mechanism for making the length of the driver variable and a bonding mechanism such as magnetism for securely fitting the driver tip 2 into the groove of the head of the screw 8. You can

In the embodiment of the present invention, the driver handle gear 6 and the driver tip gear 7 are configured as described above. However, what is the driver tip 2 side relative to the driver handle 1 side? A configuration other than the above may be used as long as it can be bent at various angles and mesh with each other.

Further, the driver handle gear 6 and the driver tip gear 7 are more reliably meshed with each other, and the driver handle gear 6 and the driver tip gear 7 are meshed with each other so that the driver handle 1 and the driver tip 2 are connected to each other. The driver handle portion 1 and the driver tip portion 2 may be configured to be movable in their respective axial directions in order to fix the bending angle of, but not limited thereto.

[0026]

As described above, according to the present invention, the shaft member can be bent into an L-shape at a position of a predetermined length from the tip portion of the driver, and the shaft member can be bent into the L-shape. By allowing the rotational movement of the handle member to be transmitted to the tip portion, there is an effect that the screws and the like can be easily attached and detached even in a very narrow space.

[Brief description of drawings]

FIG. 1 is an external view showing an embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a rotation transmission mechanism according to an embodiment of the present invention.

FIG. 3 is a diagram showing a configuration of a driver bending mechanism of FIG.

FIG. 4 is a vertical sectional view of an embodiment of the present invention.

FIG. 5 is a diagram showing a usage example of an embodiment of the present invention.

FIG. 6 is an external view of a conventional linear driver.

[Explanation of symbols]

 1 Driver Handle 2 Driver Tip 3 Driver Handle Cover 4 Driver Tip Cover 5 Driver Bending Mechanism 6 Driver Handle Gear 7 Driver Tip Gear

Claims (3)

[Claims] 1. A driver comprising a shaft member having a tip portion with a protrusion shaped to fit into a groove provided on the head of a screw member, and a handle member for transmitting rotational motion to the shaft member.
A bending mechanism that allows the shaft member to be bent into an L shape at a position of a predetermined length from the tip portion, and a rotational movement of the handle member can be transmitted to the tip portion in a state where the shaft member is bent into the L shape. A driver having a transmission mechanism that 2. The transmission mechanism includes a first transmission member arranged on the tip end side of the shaft member in the bending mechanism, and a transmission member arranged on the handle member side of the shaft member in the bending mechanism. The driver according to claim 1, further comprising a second transmission member that meshes with the first transmission member in a state where the shaft member is bent in an L shape. 3. The second transmission member comprises a gear, and the first transmission member has a plurality of corners planted along the outer periphery of the shaft member so as to mesh with the second transmission member. The driver according to claim 2, wherein the driver is formed of columnar teeth.