JP2504109Y2 - Wrench with a bendable handle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a work head configured as a ratchet pivotally attached to a handle having a handgrip, and a securing for maintaining a selective bending angle of the handle. A device, the working head having a protrusion pierced by a hinge axis located in the plane of rotation of the ratchet, the protrusion being both narrow widths perpendicular to the plane of rotation. Along the side, it is surrounded from both sides by a hinge shaft support bifurcated with a handle that is bendable with respect to the plane of rotation of the ratchet, the securing device having a manually adjustable locking body, An annular body composed of a plurality of locking openings formed in the protrusion is arranged corresponding to the locking body perpendicularly to the plane of rotation of the ratchet, and the locking body has a handle of the handle. Also, it is protruding from the bottom and A slider guided in the cup is configured to be able to pull back against the spring force of a spring acting toward the forked bottom, so that the handle reaches the area of the handgrip. Wrench with a bendable handle of the type having a central guide passage and the locking body having a rod slidable in the guide passage and holding the slider. Is.

[Conventional technology]

In a wrench of the above-mentioned type, known from DE-PS 2941616, a slider to be manually operated is arranged on the hinge bifurcation. Therefore, both hands must be used to adjust the handle to the desired bend and secure it there. As a result, especially during urgent work in an automobile factory, adjustment and fixing of the bending as described above becomes troublesome.

[Problems to be solved by the device]

The object of the present invention is to further improve the wrench of the type described at the beginning so that the bending of the handle of the wrench and the fixing of the bent position can be performed particularly conveniently with only one hand, and the handle with the fixed bending can be used. It is to surely avoid being unfixedly released.

[Means for solving the problem]

Means for Solving the Problems According to the present invention, the hand grip has a notch at a front end portion near a working head having a thumb receiving operation ridge, and the notch serves as a slider at its basic position. The thumb-receiving operation is at the receiving point so that the contour is almost aligned with the ridge.

〔Example〕

 The invention will now be described with reference to the illustrated embodiment.

The wrench shown in FIGS. 1 to 4 is formed from a handle 1 having a handgrip 2 and a working head 3 having a square portion mounted as a ratchet 4. Handle 1
The work head 3 and the work head 3 are hinged to each other via a hinge shaft 5 so as to be rotatable. Due to the pivotable hinge connection, one end of the handle 1 is formed as a bearing fork 6,
The bearing bifurcation 6 bifurcates the projection 7 of the working head 3 provided with a hole for the hinge shaft 5. Handle 1 has hinge shaft 5
Since it can be swiveled around, it can be bent with respect to the rotation surface of the ratchet 4.

A guide passage 8 for the rod 9 extends into the hand grip 2 in the center of the interior of the handle 1. The front end of the rod 9 projects from the bifurcated bottom 10 and the enlarged head of the rod
11 has a locking projection 12 formed like a pawl of a driver. An annular body composed of a plurality of locking openings 13 provided on the protrusion 7 and perpendicular to the rotation surface of the ratchet 4,
It is arranged corresponding to the locking projection 12. The end of the rod 9 on the hand grip 2 side is firmly connected to a slider 15 movable on the handle 1 by a pin 14. In this case, the pin 14 is inserted through the slot 16 of the handle 1. A compression spring 19 is tightened between the rear end surface of the rod 9 and the bottom portion 18 of the blind hole-shaped guide passage 8. Third
As shown in the figure, the rod 9 engages the compression spring 19 as the locking projection 12 is oriented to engage one of the plurality of locking openings 13.
Is loaded by.

A notch 21 is formed at the end of the hand grip 2 where the annular operating ridge 20 is provided. In the basic position, the grip end 22 of the slider 15 for operating the rod 9 is located in the cutout 21. The grip end 22 substantially conforms to the contour shape of the notch 21.

In order to change the degree of bending of the handle 1, the slider 15 is pulled rearward against the force of the compression spring 19 by the operation of the grip end 22 by the thumb. As a result, the locking projection 12 is disengaged from the locking opening 13, and the desired bending of the handle 1 is adjusted.

[Effect of device]

According to the present invention, the slider is arranged in the notch 21 formed at the front end of the handgrip 2 so that the locking mechanism can be unlocked and re-locked by the hand holding the handgrip 2 or its thumb. It becomes possible to fix the position. In short, the wrench of the present invention firstly enables "pure one-handed operation", whereby the pivot position of the handle is
It is possible to make adjustments directly in the working position of the tool, i.e. with the working head of the wrench still mounted on the bolt or nut. Due to the possibility of this "one-handed operation" and the fact that the turning position can be adjusted while the work head is fitted to the bolt or nut, for example, the handle of a wrench (which should have been adjusted optimally) In order to avoid an obstacle that unexpectedly enters the operation path, it is possible to change the turning position of the handle even during the turning operation of the wrench. Is what you play.

[Brief description of drawings]

The drawings show one embodiment of the wrench according to the present invention. FIG. 1 is a side view of the wrench according to the present invention, FIG. 2 is a plan view of the wrench according to the present invention, and FIG. 3 is a line segment III according to FIG. -
FIG. 4 is a partial longitudinal sectional view of the wrench along III, FIG. 4 is a partial plan view of the wrench according to the present invention, showing the locking device in broken lines. 1 ... Handle, 2 ... Hand grip, 3 ... Working head, 4
...... Ratchet, 5 ...... Hinge shaft, 6 ...... Bearing support, 7
…… Projection, 8 …… Guide passage, 9 …… Rod, 10 ……
Bifurcated bottom, 11 ... Head, 12 ... Locking projection, 13 ... Locking opening, 14 ... Pin, 15 ... Slider, 16 ... Slot, 18
...... Bottom, 19 ...... Compression spring, 20 ...... Operation ridge, 21 ......
Notch, 22 ... Grip end

Claims (2)

(57) [Scope of utility model registration request] 1. A working head (3) configured as a ratchet pivotally attached to a handle (1) having a handgrip (2).
And a securing device for maintaining the selective bending angle of the handle (1), the working head (3) being a projection penetrated by a hinge shaft (5) located in the plane of rotation of the ratchet. Of the shank (1) having a part (7) and wherein the protrusion (7) is bendable with respect to the plane of rotation of the ratchet along both narrow sides perpendicular to the plane of rotation. Surrounded from both sides by hinge shaft bearings (6), the securing device has a manually adjustable locking body, which is perpendicular to the plane of rotation of the ratchet. A ring-shaped body composed of a plurality of locking openings (13) formed in the protruding portion (7) is correspondingly disposed, and the locking body protrudes from the forked bottom portion (10) of the handle. ,And,
The slider (1) guided in the slot (16) of the handle
By means of 5), the handle (1) can be pulled back against the spring force of the spring (18) acting toward the bifurcated bottom, and the handle (1) is in the region of the handgrip (2). Having a central guide passage (8) reaching up to the point, and the lock body has a rod (9) slidable in the guide passage and holding the slider (15). In the wrench with a bendable handle, the handgrip (2) has a notch (21) at the front end near the working head (3) having the thumb-receiving operation ridge (20). A wrench with a bendable handle, characterized in that the notch receives a slider (15) in its basic position so as to approximately match the contour of the thumb-receiving operation ridge (20). 2. The rod (9) has a screwdriver blade-shaped locking projection (12) at the end protruding from the forked bottom (10), and the locking opening (13) is configured as a slit. The wrench according to claim 1, which is provided.