JPH0683270U - Screwdriver tool - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a screwdriver tool that enables easy attachment and detachment of screws and obtains a strong tightening force. [Structure] A hard driver material a is formed by connecting a shaft body 3 in a T-shape to a pipe 2 horizontally provided in a plastic grip 1, and the plastic grip 1 is molded with the upper portion of the hard driver material a as a core material. Then, a driver tool in which a tightening rod insertion hole 4 for inserting the tightening rod b is formed in the plastic grip 1 and a tightening portion 5 is provided at the tip of the shaft body 3 protruding from the plastic grip 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 In the present invention, when attaching and detaching a screw, a T-shaped or L-shaped screwdriver is formed in a shape that is easy to turn, and a lateral hole is further provided in the grip portion, and a tightening rod is inserted into the lateral hole as necessary. The present invention relates to a screwdriver attaching / detaching screwdriver capable of easily and safely generating a large torque as a type with a handle.

[0002]

[Prior art]

 The so-called screwdriver, which has a driver rod protruding from the grip that can be gripped with one hand, is the easiest to use and has been widely used for attaching and detaching screws. This is because the grip can be rotated in the palm of the palm on the same axis as the screw and the driver rod, so that it can be operated easily and quickly, and it is said that it is easy to use. Since it rotates only by the force of the wrist, there is a limit to the rotational force that can be generated.

Therefore, these tools are usually used only for small screws (small screws with a slot, small screws with a cross hole, etc.), and when stronger tightening force is required. For this purpose, hexagon bolts, hexagon socket head bolts, as well as Torx screw bolts, etc. are required.In this case, tools such as an adjustable wrench and spanner are mainly used, and these apply torque from the direction perpendicular to the screw axis. Since it is an additional usage, quick rotation is impossible except in special cases.

[0004]

[Problems to be solved by the device]

 2. Description of the Related Art Conventionally, there is a tool that has a horizontal hole formed in a grip portion of a screwdriver and inserts a rod-shaped body into the horizontal hole to generate a large torque as a T-shape or an L-shape. However, the conventional product has a weak coupling strength between the shaft body and the grip, and the lateral hole of the grip itself is not strong enough, and if a large torque is required, another special tool is required. That is, since the grip itself is mostly made of plastic or wood, there is too much difference in rigidity or strength from the shaft body made of metal (made of steel that has been quenched and tempered), and the shaft body and grip are It is difficult to design a structure that can withstand a strong tightening force as well, and practically neither the strength of the lateral hole of the grip nor the strength of the lateral hole of the grip is necessary and sufficient for the final tightening. Therefore, when a strong final tightening force is required, specialized tools such as an adjustable wrench, spanner, and hex key (key wrench) are required.

The present invention solves the above drawbacks and a driver capable of safely transmitting a necessary and sufficient torque only to the shaft body without a twisting moment acting on the grip when tightening with a strong force is required. It provides tools.

[0006]

[Means for Solving the Problems]

 The gist of the present invention will be described with reference to the accompanying drawings.

A hard driver material a is formed by connecting a shaft body 3 to a pipe 2 horizontally provided in a plastic grip 1 to form a hard driver material a, and an upper portion of the hard driver material a is used as a core material for the plastic grip 1 And a tightening rod insertion hole 4 for inserting the tightening rod b is formed in the plastic grip 1, and a tightening portion 5 is provided at the tip of the shaft body 3 protruding from the plastic grip 1. It relates to a driver tool that does.

[0008]

[Action]

 The shaft main body 3 is connected to the pipe 2 made of a hard material in a T-shape, and the plastic grip 1 is molded using the hard driver material a as a core material. When a long rod is inserted and used as a T-shaped or L-shaped handle style, and when turning quickly with a small torque, it is used in the same way as a screwdriver grip. When a large torque is applied, the torque is transmitted to the shaft body 3 via the pipe 2 and no force acts on the plastic grip 1. On the other hand, when the torque is small, a screwdriver is used to quickly move the plastic grip 1. It becomes possible to exert a torsional moment.

[0009]

【Example】

 The drawings show an embodiment of the present invention. Fig. 1 is an application example to a hexagonal bar wrench used for tightening hexagon socket head bolts, and Fig. 2 is a plus bit used for tightening cross hole bolts. This is an example of application to a die driver, and the tip of the shaft body 3 can be applied to various screws such as a minor bit, a torx, and a box type, and the tightening portion 5 applied to each screw is used. Form integrally.

An example of direct connection between the shaft body 3 and the pipe 2 by welding, soldering, brazing, or the like is shown. However, as shown in FIG. Alternatively, the shaft main body 3 may be press-fitted or inserted into the mounting pipe 6 or integrated by a connecting method such as rivet connection. The plastic grip 1 is generally formed by insert-molding a hard driver material a in which the shaft body 3 and the pipe 2 are integrated. However, the plastic grip 1 is formed by insert-molding the pipe 2 part with the mounting pipe 6. It can also be manufactured by press-fitting and coupling the shaft body 3 to the grip 1 later.

In addition, there is a kind of screwdriver in which the outer circumference of a grip portion called a cushion grip is formed of a rubber-like elastic material, which is easy to grip and feel and is easy to apply force. In this case, the connection with the shaft body 3 is made by double molding in which a plastic called a hard grip, which is generally used as a handle, is molded as a grip with large unevenness, and a soft rubber grip is molded again on it. ing. In the case of the present invention, since the connection between the grip and the shaft main body 3 is the T-shaped shaft main body 3, it is completely safe, and it is not necessary to mold the hard grip, and it is possible to mold the entire grip with a rubber plastic. This makes it possible to create grips with higher cushioning properties.

[0012]

[Effect of device]

 Since the present invention is configured as described above, a large torque can be applied regardless of the material of the plastic grip by making the strength of the pipe itself and the strength of the connection between the pipe and the main body strong, and the screw can be used. Since it is a turning tool, it can be swung quickly, and by setting the inner diameter of the pipe to a diameter that fits the shaft diameter of a cross screw driver that is placed at most work sites, it is possible to use it with other special tools. There is no need, and it is a highly practical driver tool that can apply the same large torque as wrenches.

[Brief description of drawings]

FIG. 1 is a cross-sectional view in which a part of a ball point shaped driver tool is cut away by a tightening portion of the present embodiment.

FIG. 2 is a cross-sectional view of a screwdriver tool having a plus bit-shaped fastening portion according to the present embodiment.

[Fig. 3] A T-shaped projection pipe is attached to the pipe of the present invention,
It is a perspective view of the hard driver material which connects a shaft main body to a mounting pipe.

[Explanation of symbols]

 1 Plastic grip 2 Pipe 3 Shaft body 4 Tightening rod insertion hole 5 Tightening part a Hard driver material b Tightening rod

Claims (1)

[Scope of utility model registration request] 1. A hard driver material is formed by connecting a shaft main body to a T-shape to a pipe laterally provided in the plastic grip, and the plastic grip is molded using the upper portion of the hard driver material as a core material. A driver tool characterized in that a tightening rod insertion hole for inserting a tightening rod is formed in the grip, and a tightening portion is provided at the tip of the shaft body protruding from the plastic grip.