JPH05154771A - Screw driver with ejection type handle - Google Patents

Abstract

PURPOSE:To provide a screw driver capable of obtaining large action force with small operation force. CONSTITUTION:A slender groove 5 is provided in the longitudinal direction on the periphery of the shaft 4 of a screw driver, and an ejection type handle 6 made rotatable between the storage position in the groove 5 and the using position rotated and extracted by 90 deg. from the storage position is provided in the groove 5, or an axial hole is provided on the end face of the shaft 4, a radial hole perpendicular to the axial hole is provided, and a handle stored in the axial hole may be extracted and inserted into the radial hole for use. The lever action when the screw driver is rotatively operated can be increased, and even a rusty screw can be simply removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in the handle of a driver.

[0002]

2. Description of the Related Art A screwdriver as shown in FIG. 3 is generally used as a tool for tightening and removing screws. As shown in the drawing, this conventional driver is composed of a driver shaft 1 having a flat tip end and a cylindrical handle 2 attached to the base end of the driver shaft 1. The tip of the screw is inserted into the groove formed in the head of the screw, and the handle 2 is held and rotated by hand to tighten or remove the screw.

[0003]

The conventional driver is constructed as described above, and since the action of the lever is small, if the screw is rusted, a large force is required, and in some cases it cannot be removed. was there.

The present invention has been made to solve the above problems, and an object thereof is to provide a driver capable of obtaining a large acting force with a small force.

[0005]

A driver with a take-out handle according to the present invention is provided with a handle for rotating the driver on a handle of the driver so that the handle can be freely taken out.

[0006]

In the present invention, the handle provided on the handle of the driver is taken out, and the driver is rotated with the handle to tighten or remove the screw. By doing so, it is possible to increase the leverage of the lever during the rotation operation of the driver, and it is possible to easily remove even a rusted screw with a small force.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a first embodiment of a driver with a removable handle according to the present invention.

The driver of this embodiment is composed of a driver shaft 3 having a minus portion at the tip and a cylindrical handle 4 attached to the base end of the driver shaft 3. Then, elongated grooves 5, 5 are provided on the peripheral surface of the handle 4 along the longitudinal direction of the driver at positions separated from each other by 180 ° in the rotational direction of the driver.
Retractable handles 6 and 6 are housed in the container 5 so as to be freely drawn out. That is, the handle 6 has a storage position in the groove 5 around a shaft provided on the base end side of the groove 5 and a use position (FIG. 1) which is rotated by 90 ° from the storage position and pulled out. Position) and is rotatable.

According to this embodiment, when the driver is used, the two handles 6 and 6 are rotated to both sides of the respective grooves 5 and 5 and pulled out, and then the handles 6 and 6 are held and held by the driver shaft 3. By rotating the, the screw can be tightened or removed by a large leverage.
Therefore, even if the screw to be removed is rusted, it can be easily removed with a small force.

FIG. 2 is a perspective view showing a second embodiment of the driver with a removable handle according to the present invention.

In the driver of this embodiment, the handle 7
An axial hole 8 that reaches the middle of the handle 7 is provided in the center of the end face of the handle 7, and a radial hole 9 that penetrates the handle 7 in the diameter direction is provided so as to be orthogonal to the axial hole 8.
A rod-shaped pull-out handle 10 having a large diameter portion on the base end side is inserted into the axial hole 8. In addition,
The axial hole 8 and the radial hole 9 are formed to have substantially the same diameter.

According to this embodiment, the handle 10 is normally inserted into the axial hole 8 while the handle 10 has a large diameter when used, as shown in FIG. 2 (a). After the portion is pinched and pulled out from the axial hole 8, it is inserted into the radial hole 9 as shown in FIG. When the driver is rotated while holding the handle 10, the screw can be tightened or removed by a large leverage, as in the above-described embodiment.

[0014]

As described above, according to the present invention, since the handle of the driver is provided on the handle of the driver so as to rotate the driver, a large operating force can be obtained with a small operation force and rusting can be prevented. It is possible to easily remove even with screws.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a driver with a removable handle according to the present invention.

FIG. 2 is a perspective view showing a second embodiment of a driver with a removable handle according to the present invention.

FIG. 3 is a perspective view of a conventional driver

[Explanation of symbols]

 4,7 handle 6,10 handle

Claims (1)

[Claims] 1. A driver with a removable handle, wherein a handle for rotating the driver is provided on the handle of the driver so as to be freely removable.