JP2006198695A - Grip for rotary tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grip for a rotary tool in which a grip member and a hand putting member can be easily gripped and by which a rotary tool can be strongly and easily rotated even by one-hand work and stable gripping easiness can be constantly secured. <P>SOLUTION: The hand putting member 4, which is brought into contact with a palm, is rotatably provided to the rear part of the grip member 3 to which the rotary tool 2 is mounted. A bulging part 11, which expands a contact area by bulging radially outward, is formed to a part of the outer peripheral part of the hand putting member 4. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a grip for a rotary tool that can also be used for precision work.

For example, the grip of a driver, which is a precision rotary tool used in intricate locations, high-density mounting locations, such as light electrical and precision fields, assembly of IT parts, and after-sales maintenance of office automation equipment, can make multiple screws faster. It is required to be able to fasten and remove efficiently.
In this type of prior art, as disclosed in Patent Document 1, a grip portion is formed by providing a rotatable hook-shaped portion at the rear portion of the handle (grip), and a finger or palm is placed on the grip portion. It is configured to be able to rotate while pressing the rotating tool against the rotating object.
JP-A-8-141923

In the above-mentioned prior art, since the hook-shaped portion is provided in the grip portion of the handle, it is possible to reduce the pain of the palm even if the grip of the rotary tool is pressed against the object to be rotated. Since the entire circumference of the grip portion bulges outward in the radial direction, the handle becomes difficult to grip when wrapped with the palm of the hand, and it is difficult to rotate to work with one hand. For this reason, it may be difficult to rotate the grip shaft of the rotary tool powerfully and easily.
It is an object of the present invention to provide a grip for a rotary tool that can solve such problems of the prior art.

  The present invention makes it easy to grip the grip member even when the contact area with the palm is enlarged, and can rotate the grip shaft of the rotary tool powerfully and easily even in one-handed operation, and can always ensure a stable grip. An object of the present invention is to provide a grip for a rotating tool.

Specific means for solving the problems in the present invention are as follows.
First, a hand support member that comes into contact with the palm of the hand is rotatably provided at the rear part of the grip member to which the rotary tool is attached, and a bulge that bulges radially outward from a part of the outer peripheral portion of the hand support member to increase the contact area. That is, the projecting part is formed.
Thereby, even if the contact area with the palm is increased, the grip member can be easily gripped, and the rotary tool can be rotated powerfully and easily even in one-hand operation. In addition, when gripping the grip member, the ring finger or little finger can be put on the bulging portion to stabilize the grip, and when the rotary tool is picked up from the placed state, when the grip member is gripped, the bulging portion is Since it always rotates so as to be on the lower side, the bulging portion of the hand support member can always be arranged at a position where it is easy to grasp with respect to the palm.

Second, a weight is provided on the bulging portion.
Accordingly, when the grip member is gripped, it can be more reliably rotated so that the bulging portion of the hand holding member is on the lower side.
Third, the grip member is gripped by a finger, and a mounting portion that protrudes rearward from the grip portion and is rotatably mounted in a state in which the handle member is fitted and the handle member is regulated in the front-rear direction. And a turning portion that narrows from the grip portion toward the front side.
This makes it easier to grip the grip member and the holding member, and can more reliably generate a force for pressing the grip shaft of the rotary tool quickly.

  According to the present invention, even when the contact area with the palm is increased, the grip member can be easily gripped, and the grip of the rotary tool can be rotated powerfully and easily even with one-hand operation. In addition, when gripping the grip member, the ring finger or little finger can be put on the bulging portion to stabilize the grip, and when the rotary tool is picked up from the placed state, when the grip member is gripped, the bulging portion is Since it always rotates so as to be on the lower side, the bulging portion of the hand support member can always be arranged at a position where it is easy to grasp with respect to the palm.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 4, reference numeral 1 denotes a grip used for a driver used for precision work, a rotary tool 2 whose tip is a driver blade tip, and a base end portion (grip shaft, shaft) of the rotary tool 2. And a gripping member 4 that is rotatably provided at the rear part of the grip member 3 and abuts against the palm of the hand.
The rotary tool 2 is formed of a metal bar, and has a tip shape such as plus, minus or torx. The grip shaft of the rotary tool 2 is a relatively thin shaft so that it can be smoothly inserted into a wire harness or a terminal block.

The grip member 3 is formed of cellulose acetate resin or other synthetic resin and is gripped with a finger, and protrudes rearward from the grip portion 6 to fit the handle member 4 so that the handle member 4 is moved in the front-rear direction. It has a mounting portion 7 that is rotatably mounted in a position-controlled state, and a turning portion 8 that is narrowed from the grip portion 6 to the front side.
The grip portion 6 is a portion that is formed in an arc shape on each side of a polygon such as a hexagon, an octagon, etc., and is a shape that can be easily turned with a fingertip, and is gripped by the thumb, index finger, and middle finger, In a state where the grip portion 6 is gripped, the rotary tool 2 is turned by picking the turning portion 8 with the fingertips of the thumb, index finger and middle finger. Since the grip portion 6 has a larger diameter than the turning portion 8, the torque applied to the rotary tool 2 can be increased.

The turning portion 8 is formed in a polygonal shape with chamfered corners such as a hexagon and an octagon, and has a shape that is easy to turn with a fingertip. The connecting portion of the turning portion 8 with the grip portion 6 is narrowed. In addition, unevenness in the circumferential direction, that is, ridges and narrow grooves along the longitudinal direction of the rotary tool 2 are formed on the surface, and the shape is easy to rotate with a fingertip. Since the constricted portion 8a of the turning portion 8 has a smaller diameter than the grip portion 6, it can be turned quickly and delicately tightened.
The mounting portion 7 is thinner than the grip portion 6 and is a support shaft portion concentric with the grip shaft of the rotary tool 2, and supports the support member 4 so as to be rotatable around the grip shaft core. A circumferential groove 9 is formed in the mounting portion 7 in the middle of the axial direction (longitudinal direction).

The hand support member 4 is made of polypropylene or other synthetic resin in the shape of a cap. An annular ridge 4b is formed on the inner wall of the cavity 4a, and the outer periphery is partially outside (one place). A bulging portion 11 bulging in the direction is formed.
When the holding member 4 is fitted into the mounting portion 7 in the cavity 4a, the protruding strip portion 4b is engaged with the circumferential groove 9, the longitudinal position of the mounting portion 7 is regulated, and the retaining member 4 is prevented from coming off. It can be rotated freely.
The back surface of the cavity 4a of the hand support member 4 can be brought into contact with the rear end of the mounting portion 7 or the front end of the hand support member 4 with the rear end of the grip portion 6, so that it can be rotated quickly. Even if a pressing force is generated during turning, the fitting portion 7 is fitted so as not to have a low resistance, and a large pressing force from the hand holding member 4 can act on the grip member 3.

As shown in FIGS. 1 and 3, the bulging portion 11 bulges the rear part of the hand support member 4 downward and downward, and when the hand support member 4 has a small size in the left-right direction (width direction), it also swells in the left-right direction. Can be issued.
Since the bulging portion 11 bulges in a radially outward direction at a part of the outer peripheral portion of the hand holding member 4, the back shape of the hand holding member 4 is not circular but approaches an oval or rice ball shape by the bulging portion 10. It fits into the grip shape in the palm of the hand, and the contact area with the palm of the hand is expanded. Since the bulging portion 11 is in one place (one direction), it is gripped in the other parts of the hand support member 4. Can be gripped in the same way as part 6.

Further, since the weight of the support member 4 is increased by the amount formed by the bulging portion 11 and the weight balance in the circumferential direction becomes unbalanced, the gripping member 3 is lifted and the driver member is lifted when the grip member 3 is picked up. When the palm 11 is always turned to the lower side and the palm is applied to the hand rest member 4 in this state, the bulging portion 11 is located on the opposite side of the palm and the grip member without the bulging portion 11 is present. It becomes the same state as holding 3.
The bulging portion 11 is formed with a through hole 4c communicating in a perpendicular direction from the cavity 4a of the hand holding member 4, and a weight 12 made of an iron ball is inserted into the through hole 4c. The weight 12 is prevented from coming off by a stopper 4d provided near the exit of the through hole 4c, and a part of the surface of the weight 12 is exposed from the through hole 4c.

The support member 4 has a circular arc surface 4e formed on the lower surface (the lower surface in the state of FIGS. 1 and 4) from the circular front portion to the rear bulge portion 11, and the weight 12 further extends from the circular arc surface 4e. It is arranged in a state of projecting downward, and the bulging amount of the bulging portion 11 is made larger. When the grip member 3 is gripped, the ring finger or little finger is easily caught by the bulging portion 11, and the ring finger or The shape is such that the hand rest member 4 can be gripped by the little finger and the palm.
Therefore, the weight 12 not only increases the circumferential weight imbalance by the bulging portion 11 and rotates the hand support member 4 more reliably so that the bulging portion 11 is always on the lower side, but also with the ring finger or little finger. As a result of this engagement, it is easy to grasp the stick when grasping the holding member 4 and the grip member 3, and helps to determine the direction of the rotary tool 2 relative to the rotating object.

Further, the hand support member 4 is shaped to be bent along the palm of the hand and brought into contact with it, and by incorporating a weight 12 made of an iron ball, it can always be held at the best position by its own weight.
The grip 1 of the rotary tool is, for example, a tapping hole formed by a burring or an insert of a screw component when the tightening screw is an ordinary screw. Therefore, the resistance applied to the grip 1 until the screw head contacts the seating surface. Less is. Therefore, if the palm is brought into contact with the hand holding member 4, the grip 1 of the rotary tool 2 can be quickly turned in a state where the turning portion 8 is picked up with a fingertip.

At the time of final tightening, the gripping part 6 of the grip member 3 of the design design in which the outer diameter is expanded while supporting the grip 1 of the rotary tool 2 by abutting the palm of the hand 4 with the thumb, the inner side of the index finger, and the fingertip When the gripping portion 6 is rotated with a finger while pressing the rotary tool 2 against the screw head with the palm of the hand, the screw head can be reliably rotated with a large torque.
In the present invention, the shape of each member and the positional relationship between the front, rear, left, and right in the embodiment are best configured as shown in FIGS. However, it is not limited to the said embodiment, A member, a structure can be variously deformed, and a combination can also be changed.

  For example, the rotary tool 2 is detachably attached to the grip 1 so that it can be replaced with a different type of tool, the weight 12 is attached to the outer surface of the bulging portion 11, the grip member 3, and the treatment Although the member 4 is an insulator, it may be formed of a low resistivity material such as 10 6 to the 9th power and may be an anti-static product in which electricity flows slowly.

It is a side view which shows embodiment of this invention. It is the same part section top view. It is the same rear view. It is sectional drawing of a care member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Grip 2 Rotating tool 3 Grip member 4 Holding member 4a Cavity 4b Projection part 4c Through-hole 6 Grip part 7 Mounting part 8 Turning part 9 Circumferential groove 11 Swelling part 12 Weight

Claims (3)

  A gripping member that abuts the palm of the hand is pivotally provided at the rear of the grip member for attaching the rotary tool, and a bulging portion that bulges radially outwardly on a part of the outer peripheral portion of the gripping member to increase the contact area is formed. A grip for rotating tools.   The grip of the rotary tool according to claim 1, wherein a weight is provided at the bulging portion.   The grip member is gripped by a finger, a mounting portion that protrudes rearward from the grip portion, is fitted to the hand support member, and is rotatably mounted in a state where the hand support member is regulated in the front-rear direction, and the grip The rotating tool grip according to claim 1, further comprising a turning portion that is narrowed from the front portion to the front portion side.

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