JP3000578U - Tool grip - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a grip for improving safety and usability when using a hand tool such as a cross wrench. [Structure] The grip body G is composed of a pair of semi-cylindrical resin parts 1 and 1 obtained by dividing a substantially cylindrical shape into two, and a minimum inner diameter 2R of a tool handle portion WR3 to which the grip body G is mounted. It is made larger than the outer diameter by a predetermined amount. Further, the pair of semi-cylindrical parts 1 and 1 have a structure in which they can be connected and disassembled to each other so that the grip body G can be attached to the tool handle portion WR3 by retrofitting.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a grip attached to a handle portion of a tool such as a socket wrench.

[0002]

[Prior art]

 A socket wrench is generally used as a tool for removing and tightening wheel nuts when changing the tires of automobiles. Further, as this type of socket wrench, there is a so-called cross wrench in which a handle is processed into a cross shape and sockets having different sizes are provided at respective tip portions thereof.

This cross wrench can not only tighten nuts of four sizes, but as shown in FIG. 6, handles handle parts WR2 and WR4 in a direction intersecting the rotation center of socket S1 used for nut tightening. It is widely used in auto shops and tool stores because it is easy to use and convenient.

[0004]

[Problems to be solved by the device]

 By the way, when tires are exchanged using a cross wrench, once the nut loosens, after that, as shown in Fig. 6, firmly grip the handle parts WR2 and WR4 and turn the wrench WR. Instead, the handle is alternately sent by hand (the left hand in the figure), and the nut is removed by rotating the entire wrench and removing the nut. Also, similar work is performed in the initial stage of tightening the nut, but when turning the wrench like this, the handle WR3, which is the axis of rotation of the wrench, must be grasped and tightened with a light touch. The hand holding part WR3 (right hand in the figure) may be damaged. Especially, it is very painful to keep gripping the cold iron handle while it is cold in winter, and it is also easy to damage your hands.

In a warm region, tires are replaced only when a flat tire or the like occurs, and the frequency is low, but in cold regions or the like, tires are replaced twice in early winter and early spring (normal tire ⇔ studless). Tires are required, and since the time for replacement is in the cold season, the above points become problems that cannot be neglected.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a grip for improving safety and usability when using a hand tool such as a cross wrench.

[0007]

[Means for Solving the Problems]

 The structure for achieving the above object will be described with reference to FIGS. 1 and 2 corresponding to the embodiment. The present invention is a grip attached to the rod-shaped handle WR3 of a tool such as a socket wrench. The grip body G is composed of a pair of semi-cylindrical resin parts 1 and 1 obtained by dividing a substantially cylindrical shape into two, and the minimum inner diameter (2R) of the grip body G is the outer diameter of the tool handle portion WR3 on which the grip body G is mounted. In addition to being formed by a predetermined amount larger than the above, the pair of parts 1 and 1 described above are connected to each other by a connecting means (for example, a stopper 2 having an uneven fitting structure) provided in the divided part. It is characterized by being configured so that it can be freely disassembled.

Here, in the present invention, at both ends of the grip body G, a collar 1a extending at a uniform height along the inner peripheral edge of each end is integrally formed, and each of the collars 1a is formed. It is preferable that the diameter (2R) of the circumferential surface formed by the inner front end surface 11a be the minimum inner diameter of the grip body G. It is preferable to provide a groove 1b for detachably mounting the adjuster 3 for changing the minimum inner diameter of the main body G. The groove 1b is preferably provided at two positions on the inner peripheral surface of the grip body G.

Further, it is preferable that the pair of split parts 1 and 1 forming the grip body G have the same shape.

[0010]

[Action]

 In the present invention, the grip body G can be divided into two parts, and after being divided into two parts, the divided parts 1 and 1 can be connected by, for example, fitting the concave and convex portions of the stopper 2. Therefore, the grip body G can be retrofitted to the handle of the tool. When the product of the present invention is applied to the cross wrench WR, it can be mounted on any of the handle parts WR1 ... WR4 of the sockets S1 ... S4 of each size, and the mounting position can be changed. Become.

Furthermore, since the minimum inner diameter 2R of the grip body G is made slightly larger than the diameter of the handle portion WR3 of the wrench to be mounted, the rotation of the cross wrench WR becomes smooth when it is turned.

Here, when the collars 1a are provided on the inner peripheral edges of both ends of the grip body G and the diameter (2R) of the circumferential surface formed by the tip end surface 11a thereof is set as the minimum inner diameter of the grip body G, As the contact portion of the handle portion WR3 to the outer peripheral surface is reduced and the sliding resistance is reduced, the rotation operation of the cross-shaped wrench WR becomes smoother. Further, by making both ends of the grip body G contact with each other in this way, wobbling in the axial direction of the grip body G is reduced and operability is improved.

Further, if a groove 1b for fitting the size change adjuster 3 is provided on the inner peripheral surface of the grip body G, the minimum inner diameter of the cylinder is changed depending on whether the adjuster 3 is attached or not. This allows it to be used as a grip on the handle of other sized cross wrenches or other tools. If the adjuster 3 is installed at two positions, wobble with respect to the axial direction of the grip body G can be reduced even when the adjuster 3 is attached.

Further, if the pair of split parts 1 and 1 forming the grip body G have the same shape, only one molding die is required.

[0015]

【Example】

 FIG. 1 is a view showing the structure of the embodiment of the present invention. 1 (A) and 1 (B) are a front view and a plan view showing an external structure, and FIG. 1 (C) is an internal structure diagram showing an exploded view of the embodiment. Further, (D) and (E) are views of (A) viewed from the arrow D and (C) viewed from the arrow E, respectively.

Further, (A), (B) and (C) of FIG. 2 are cross-sectional views taken along the lines AA, BB and C-C of FIG. 1A, respectively. b) and (c) are respectively aa, bb and cc sectional views of FIG. 1 (C). Further, FIG. 3 is a sectional view taken along line XX of FIG.

The grip of this embodiment is a resin molded product such as PP (polypropylene) or PE (polyethylene), and the grip body G is composed of a pair of semi-cylindrical parts 1 and 1, Has a substantially cylindrical shape. The grip body G has a shape in which the central portion is slightly inflated for easy grip.

Now, the pair of semi-cylindrical parts 1 constituting the grip body G are molded products of the same shape, and both ends thereof have a uniform height along the inner peripheral edge of each end. A semi-doughnut-shaped collar 1a extending in the direction of 1 is integrally formed, and the diameter 2R of the inner peripheral surface formed by each of the tip surfaces 11a is the minimum inner diameter of the grip body G. The diameter of the minimum inner diameter is slightly larger than the outer diameter of the handle portion WR3 of the cross wrench on which the grip body G is mounted: for example, 16 mm (2R = 16.4 mm).

Further, the grip body G is provided with stoppers 2 ... at a mating portion (divided portion) between the pair of semi-cylindrical parts 1 and 1. The stoppers 2 are arranged at the central portion of the grip body G in the longitudinal direction and at two positions at both ends, respectively, for a total of six positions.

Each stopper 2 has an uneven fitting structure generally used in a resin molded product, and as shown in FIGS. 2 (A), (a), (B), and (b), a mating portion of the component 1 It is composed of a connecting member 2a that projects further outward than that and a connecting hole 2b for inserting the connecting member 2a. By connecting the connecting member 2a into the connecting hole 2b, mutual connection is possible, and the connecting member 2a The structure is such that the connection can be released by pulling out.

In this embodiment, since the two semi-cylindrical parts 1 and 1 constituting the grip body G have the same shape, one semi-cylindrical part 1 is connected to the connecting member 2a of the stopper 2 and the connecting member 2a. Both holes 2b are provided, and the connecting member 2a and the connecting hole 2b are arranged at positions symmetrical to each other with the central axis of the cylinder interposed therebetween.

On the other hand, on the inner peripheral surface of each semi-cylindrical part 1, there are formed ridges 1c having the shapes shown in FIGS. 2 (C) and 2 (c) at positions symmetrical with respect to the center in the longitudinal direction. Each is provided. As shown in FIGS. 3 (A) and 3 (B), each of the ridges 1c is provided with a groove 1b for mounting the adjuster 3 in a detachable manner.

As shown in FIG. 4, the adjuster 3 is a semi-ring-shaped resin molded product (eg, PP or PE) whose outer peripheral surface is formed in a convex shape, and the protrusion 3b thereof is shown in FIG. It is fitted into the groove 1b as shown in B). Also, the radius r of the inner peripheral surface of the adjuster 3 is one size smaller than the previous handle portion WR3 (diameter: 16 mm), and the diameter of the wrench handle portion is, for example, 2r larger than 14 mm by a predetermined amount (2r = 14.4mm).

In addition, two reinforcing ribs 1d are provided at symmetrical positions on the inner peripheral portion of each semi-cylindrical component 1 at the central portion in the longitudinal direction. Next, the operation of the embodiment of the present invention will be described together with usage examples. FIG. 5 is a diagram showing the usage state.

First, of the four types of sockets S1 ... S4 of the cross wrench WR, when the socket used for tightening the nut is S1, the grip body G is attached to the handle portion W R3 at a position facing the socket S1. To do.

To install the grip body G, first divide the grip body G into two parts, and insert the handle WR3 of the cross wrench WR between the divided parts, that is, the semi-cylindrical parts 1 and 1, and then, the semi-cylindrical parts. The connection member 2a and the connection hole 2b are joined together, the connection member 2a is fitted into the hole 2b, and the pair of semi-cylindrical parts 1 and 1 are connected to each other.

When tightening the nut, the grip body G is gripped with, for example, the right hand, the socket S1 is fitted into the nut, and in this state, the handle portions WR4 and WR2 in the intersecting direction are alternately alternated with the right hand. Send it, turn the cross wrench WR and screw in the nut. Next, from the time when the nut hits the fastening surface, the handle portions WR4 and WR2 are alternately held and the cross wrench WR is turned firmly to tighten the nut.

It should be noted that the object of the present invention is sufficient even if there is no configuration of either one or both of the collar 1a at both ends of the grip body G and the groove 1b for mounting the adjuster adopted in the embodiment of the present invention. Can be achieved.

[0029]

[Effect of device]

 As described above, according to the present invention, the grip body is composed of a pair of semi-cylindrical parts so that the grip body can be divided into two parts, and the parts can be connected with one touch. It can be retrofitted to the desired handle of the cross wrench. In addition, since there is a clearance between the inner peripheral surface of the grip body and the outer peripheral surface of the handle in the mounted state, the rotating operation of the cross wrench becomes smooth when it is rotated. Further, since the socket to be used can be specified by the mounting position (handle portion) of the grip on the cross wrench, it is not necessary to check each socket size of the cross wrench one by one during work. This is a great help, especially when working in dark conditions such as at night.

Moreover, since the grip body is a resin molded product, the work can be performed easily even in the cold season of winter, and the hands are not damaged. Furthermore, since the resin molded product is easy to change colors, it is possible to arrange grips of various colors. Thus, for example, by attaching grips of different colors to a plurality of types of tools, it is possible to achieve an effect that the respective tools can be easily identified.

Here, in the present invention, if the grip body has a structure to which an adjuster can be attached, it is possible to correspond to a cross wrench of a plurality of sizes (diameter of the handle) and other than the wrench. It can be used as a rotating grip for tools, expanding its versatility. Further, if the pair of semi-cylindrical parts constituting the grip body have the same shape, the cost of the molding die and thus the product cost can be kept low.

There are generally tools with grips, but most of these types of grips have a structure in which the tool handle is fitted and killed, and the handle is attached to the head (socket) of the tool. It is common to insert the grip into the handle before processing the grip part), and this leaves the problem of poor workability during tool making. However, since it is a post-installed structure, there is no problem in manufacturing such a tool, and there is an advantage that it can be easily attached to an existing commercially available cross wrench or the like.

[Brief description of drawings]

FIG. 1 is a structural view of an embodiment of the present invention, (A) and (B) are a front view and a plan view showing the external structure, (C) is an internal structure drawing, and (D) is an arrow D of (A). View, (E) is a view from arrow E of (C)

FIG. 2 is a diagram showing the AA, BB and CC cross sections of FIG. 1A and the aa, bb and cc cross sections of FIG. 1C together.

FIG. 3 is a sectional view taken along line XX of FIG.

FIG. 4 is a structural diagram of an adjuster 3 used in the embodiment of the present invention.

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

FIG. 6 is a diagram illustrating an example of work when a tire is changed using a cross wrench.

[Explanation of symbols]

 G Grip body 1 Semi-cylindrical part 1a Collar 11a Tip surface 1b Groove (for mounting adjuster 3) 2 Stopper 2a Connecting member 2b Connecting hole 3 Adjuster 3a Inner surface 3b Projection WR Cross wrench S1 ・ ・ S4 Socket part WR1 ..WR4 handle

Claims (6)

[Scope of utility model registration request] 1. A grip to be mounted on a rod-shaped handle of a tool such as a socket wrench, wherein the grip body is composed of a pair of semi-cylindrical resin parts obtained by dividing a substantially cylindrical shape into two parts, and the minimum inner diameter thereof is It is formed to be larger than the outer diameter of the tool handle part on which the grip body is mounted by a predetermined amount, and the pair of parts can be connected to each other and can be freely disassembled by a connecting means provided in the divided part. A grip for a tool, which is configured as follows. 2. The grip for a tool according to claim 1, wherein the connecting means has an uneven fitting structure. 3. Grips are integrally formed at both ends of the grip body along the inner peripheral edge of each end with a uniform height, and are formed by the inner tip surfaces of the respective rims. The grip for a tool according to claim 1 or 2, wherein the diameter of the circumferential surface is the minimum inner diameter of the grip body. 4. The inner peripheral surface of the grip body is provided with a groove for detachably mounting an adjuster for changing the minimum inner diameter of the grip body. Or the tool grip described in 3. 5. The grip for a tool according to claim 4, wherein the adjuster mounting groove is provided at at least two positions on the inner peripheral surface of the grip body. 6. The pair of parts constituting the grip body have the same shape as each other.
The tool grip according to 2, 3, 4, or 5.