JP3192657U - Tool grip and tool with the grip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grip for a tool having an excellent color design with high productivity. SOLUTION: A driver 10 is formed by injection molding, and is fitted and fixed in a colorless transparent or colored transparent synthetic resin grip 30 having a hollow hole formed in one end surface thereof and in the hollow hole of the grip 30. A rigid portion 20 having a joining shaft 22 is provided, and the inner peripheral surface of the hollow hole is colored with a dye having excellent dyeability with respect to the synthetic resin in a color different from that of the synthetic resin. The surface of the grip 30 is formed in a shape including a concave region 33B and a convex region 33A, which are larger than the diameter of the hollow hole colored with the dye and can be visually recognized. [Selection diagram] Fig. 1

Description

  The present invention is a grip (grip hand, handle) suitable for manually operated tools such as screwdrivers, hammers, and wire strippers, and has a color design that makes it easy to visually check the type of tool. The present invention relates to a grip and a tool having the grip.

  Conventionally, as a tool that is manually operated, a rigid portion (a screw fitting portion provided with a shaft portion as a joint portion in the case of a screwdriver) or a shaft portion as a joint portion as a joint portion as a hammer is used as a tool body (operation region). A tool having a striking part (a grip formed by a driver and a hammer and formed in a substantially cylindrical shape and fixed to a shaft part) is generally fixed to the rigid part and gripped by a human hand. Are known. And the grip in such a tool uses many synthetic resins (plastic etc.) from the ease of mass production.

  When such a grip is composed of multiple colors (two colors, multiple colors) instead of a single color, a stick-shaped two-color molded product is manufactured by extrusion two-color molding, and then gripped by a human hand by cutting. It has been processed into a desired shape (a shape that fits a human hand and is easy to apply force). However, such a grip does not require a mold, but since there is a limit to the shape of the molded product, in order to produce a shape that fits the hand, it must be cut as described above. There was a drawback that the production cost was increased and the cost was increased.

  On the other hand, if a grip is molded by injection molding, it can be molded into a free shape such as a shape that fits a human hand, although a mold is required. However, in order to perform multicolor molding by injection molding, a very expensive color mixing molding machine is required, and furthermore, very strict conditions are required when uniform design that colors the grip is required. In order to reduce the production efficiency due to the increase in work such as setup change because different resins flow through the two injection cylinders, there is a problem in manufacturing a colorful two-color grip by injection molding. Many are not realistic.

  Japanese Patent Laid-Open No. 5-069347 (Patent Document 1) solves such drawbacks, and forms a handle shape into a desired shape by injection molding, and has a two-color configuration or a multi-color configuration. A grip (tool grip) is disclosed. This tool handle is formed by injection molding to form a transparent or semi-transparent handle body with a hollow hole drilled to the middle of the base end surface, and the handle handle body at the base end in the hollow hole of this handle handle body. A colored insert body provided with a casing for locking to the base end face of is inserted and fastened. As described above, according to the tool handle, the shape of the handle can be formed into a desired shape by injection molding, and the colored insert inserted into the handle main body can be seen through from the outside while being injection molded. Therefore, it is possible to realize a tool grip having a two-color configuration or a colorful multi-color configuration.

JP-A-5-069347

However, the tool handle disclosed in Patent Document 1 must be manufactured by manufacturing a transparent or translucent handle body and a colored insert, and inserting the colored insert into the handle body. Therefore, even if the color design is excellent, there are still disadvantages that the number of parts is large, the manufacturing process is large, the mass productivity is poor, and the cost is high.
In view of such problems, the object of the present invention is a tool grip suitable for a manually operated tool and excellent in mass productivity and design (color design), and for the tool. It is to provide a tool with a grip.

In order to achieve the above-described object, the following technical means are taken in the present invention.
That is, the tool grip according to the present invention is a tool grip suitable for a tool gripped by a human hand, and the clip is made of synthetic resin and is suitable for gripping by a human hand. The synthetic resin is formed in a desired shape, and the color of the synthetic resin after being formed into a desired shape is colorless and transparent or colored and transparent. At least a part of is colored in a color different from the color of the synthetic resin.

Preferably, the colorant can be configured to be a dye.
More preferably, at least a part of the grip may be colored so that the type of the tool can be recognized by a person's visual perception of the grip.
More preferably, a portion of the grip that comes into contact with a human hand can be colored.

More preferably, a portion of the grip that does not come into contact with a human hand can be colored.
More preferably, the grip has a substantially cylindrical shape, and one end face is provided with a hollow hole into which a joining shaft as a part of the tool is fitted and the working area of the tool is fixed to the grip. In addition, at least a part of the grip in the hollow hole may be colored.

More preferably, the depth of the hollow hole is longer than the fitting length of the joining shaft, and at least the portion of the hollow hole where the joining shaft is not fitted is colored.
More preferably, the grip surface can be configured to have a desired shape suitable for being grasped by a human hand and a shape that is visible larger than the diameter of the hollow hole colored with the colorant. .

More preferably, it can be configured to be visible larger than the diameter of the hollow hole colored with the colorant by refraction of light incident on the synthetic resin.
More preferably, since the light incident on the synthetic resin is irregularly reflected, it can be configured to be visible larger than the diameter of the hollow hole colored with the colorant.
More preferably, the outer peripheral surface of the grip is formed by repeatedly and continuously forming a concave region and a convex region in the circumferential direction, and the behavior of light in these regions is larger than the diameter of the hollow hole colored with the colorant. Can be configured to be visually recognizable.

  Moreover, the tool which concerns on this invention comprises the grip for tools provided with the characteristic mentioned above, and is comprised.

  According to the present invention, there are provided a tool grip suitable for a manually operated tool and excellent in mass productivity and design (color design), and a tool provided with the tool grip. be able to.

It is a side view of a driver concerning an embodiment of the invention. It is an enlarged front view of the driver of FIG. 1, (A) is a spiral fitting part side, (B) and (C) are grip edge part sides. It is 3-3 sectional drawing shown in FIG.2 (C). FIG. 4 is an enlarged view of FIG. 3. It is 5-5 sectional drawing shown in FIG.

  Hereinafter, a tool grip and a tool including the tool grip according to an embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the same parts (portions) are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated. In addition, the tool according to the present embodiment is described using a screwdriver as an example, but other tools such as a hammer and a wire stripper that are manually operated may be used.

FIG. 1 is a side view of a driver 10 according to an embodiment of the present invention.
) Is an enlarged front view of the driver 10, (A) is a spiral fitting part side, (B) is a grip end part side when there is an identification mark, and (C) is a grip end part side when there is no identification mark. Respectively. 3 is a cross-sectional view taken along line 3-3 shown in FIG. 2C, FIG. 4 is an enlarged view of FIG. 3, and FIG. 5 is a cross-sectional view of FIG. It is 5 sectional drawing.

  As shown in FIGS. 1 to 5, the driver 10 is a tool having a grip 30 that is gripped by a human hand, is formed by injection molding, and has a hollow hole in one end surface. A grip 30 and a rigid portion 20 including a spiral fitting portion 21 which is an operation region including a joint shaft 22 fitted and fixed in a hollow hole of the grip 30 are provided. The grip 30 is made of a synthetic resin and is formed in a desired shape suitable for being gripped by a human hand, and the synthetic resin is colorless and transparent or colored and transparent after being formed into the desired shape. It is characterized by that. Then, at least a part of the grip 30 is colored in a color different from the color of the synthetic resin by a colorant that is excellent in colorability with respect to the synthetic resin.

  Here, the colorant in the present embodiment is described as a dye, but the present invention is not limited to this. Any colorant that is excellent in colorability with respect to the synthetic resin that is the material of the grip 30 may be used. For example, it may be a pigment other than a dye, a paint (including a pigment-based paint), or the like. It may be a colorant of (color crystal) or a metallic colorant.

  Furthermore, a color different from the color of the synthetic resin means that if the color of the synthetic resin is colorless and transparent, the synthetic resin is an achromatic color, so any color that has a color (chromatic color) is included. However, if the color of the synthetic resin is colored and transparent, the synthetic resin is a chromatic color, so any color that is different from the color of the synthetic resin (a chromatic color other than the chromatic color of the synthetic resin) is included. means. The colorless and transparent means so-called clear (crystal), and the colored and transparent means so-called color clear (color crystal).

  It should be noted that at least a part of the grip 30 is colored in this way so that the type of tool can be recognized visually by the person viewing the grip 30, that is, whether the tool is a plus driver or a minus driver. In the case of a driver, it is possible to recognize the size of the cutting edge (which number is specified in JIS B4633). Further, as shown in FIG. 2B, it is also preferable to attach an identification mark 34A to the end portion (end surface) of the grip 30 opposite to the operating region of the driver 10. The identification mark 34A shown in FIG. 2B indicates that the driver is a plus driver of “call number 2 of JIS B4633”.

  Here, in this driver 10, as will be described later, the grip 30 has a substantially cylindrical shape, and a joining shaft 22 which is a part of the tool is fitted into one end face to be an operation region of the tool. A hollow hole 33C for fixing the rigid part 20 including the spiral fitting part 21 to the grip 30 is formed, and at least a part of the hollow hole 33C of the grip 30 is colored. That is, the driver 10 is characterized in that a portion of the grip 30 that does not come into contact with a human hand is colored. Thus, since the part which does not contact | abut a human hand was colored, it is preferable at the point which does not need to prevent the peeling of coloring by a time-dependent change. However, the portion of the grip 30 that comes into contact with the human hand may be colored.

  The rigid portion 20 includes a spiral fitting portion 21 including a joining shaft 22 (tool axis) as a joining portion joined to the grip 30. The joining shaft 22 includes a spiral fitting portion 21 (that is an action region) that is fitted into a groove provided in the head of the spiral at the other end portion in the longitudinal direction. In addition, in this Embodiment, although the spiral fitting part 21 is formed in the cross shape (plus shape) so that it may fit in the cross-shaped groove | channel provided in the head of a spiral, it is limited to this. Instead, it may be formed in a letter shape (minus shape) so as to be fitted in a letter-shaped groove provided at the head of the spiral. Further, the joining shaft 22 includes a blade-like locking portion 22A having a diameter larger than the shaft diameter for locking with the hollow hole 33C in order to prevent the grip 30 from coming off and rotating. The joining shaft 22 is made of metal.

The grip 30 is formed to have a substantially cylindrical shape that is fitted to the joint shaft 22 and fixes the rigid portion 20, and a hollow hole 33 </ b> C is formed on one end face, and the hollow hole 33 </ b> C. This depth is longer than the fitting length of the joining shaft 22, and at least a part of the hollow hole 22 of the grip 30 is colored. For example, the depth of the hollow hole 33 </ b> C is about 80% or more of the length of the grip 30 and does not penetrate the grip 30. Further, the joining shaft 22 is inserted to about 30% of the depth of the hollow hole 33C. The depth of the hollow hole 33C and the thickness of the portion where the joining shaft 22 is not inserted are such that the deeper the depth is, the more the weight of the grip 30 can be reduced and the material cost can be saved. Although it is preferable, if the thickness is large, it is not preferable in that the rigidity is lowered and the injection molding has a large difference in thickness.

  Here, as shown in FIGS. 4 and 5, the driver 10 according to the present embodiment includes a grip 30 including a colored region 33 </ b> D in which a fitting portion and a portion that is not fitted are colored. However, the present invention is not limited to this, and a grip that is colored only in a portion that is not inserted may be used, or a grip that is colored only in a portion that is inserted may be used. The colored region 33D is determined in consideration of the color design.

  In the following, the colored grip 30 will be described in more detail. As shown in FIG. 1, the grip 30 is generally composed of an insertion part 31, a thin body part 32, a grip part 33, and a base end part 34 from the action region side. The narrow body portion 32 and the base end portion 34 are formed so as to be cut into a polyhedron shape. Further, as shown in FIG. 2A, the fitting portion 31 includes a chamfered portion 31A in which a part of the cylindrical portion 31B is chamfered so as not to roll even when the driver 10 is placed on an inclined surface. .

  As shown in FIG. 3, the grip 30 is provided with a hollow hole 33C into which the joining shaft 22 is inserted, and the synthetic resin is dyed over the entire inside of the hollow hole 33C. A colored region 33D colored with a dye having excellent properties is provided. The colored region 33D is colored before the joint shaft 22 is inserted. In addition, a well-known method is used about the method itself which inserts and fixes the joining shaft 22 in the grip 30, and the method itself which colors the coloring area | region 33D with the dye excellent in the dyeability with respect to the synthetic resin which forms the grip 30. Here, with respect to the method of coloring the coloring region 33D with the dye, before the joint shaft 22 is fitted into the grip 30, the grip 30 is provided with the hollow hole 33C. The amount of dye slightly larger than the amount of the dye corresponding to the area of the colored region 33D is put into the hollow hole 33C, and the grip 30 is tilted and / or rotated to move the inside of the hollow hole 33C. It is only necessary to color the colored region 33D over the whole (the entire inner peripheral surface), and the colored region 33D can be manufactured (realized) very easily.

  As shown in FIG. 1 and FIG. 2, the outer peripheral surface of the grip portion 33 is formed with a concave region 33B and a convex region 33A repeatedly and continuously in the circumferential direction so as to be suitable for being held by a human hand. ing. The surface of the concave region 33B is a curved surface, and the surface of the convex region 33A is a curved surface, and the curved surface is not a curved surface constituted by one curvature such as a cylindrical shape. Further, the concave region 33B and the convex region 33A are connected by a smooth curved surface (connected curved surface). The concave region 33B and the convex region 33A have different surface curvatures, as well as the concave region 33B and the convex region 33A, and the connecting curved surface connecting them, the curved surface having different curvature and different curvature. A complicated curved surface is continuously formed. And since this grip part 33 is shape | molded by the colorless and transparent or colored transparent synthetic resin, light injects. Light (natural light (sunlight), artificial light (electric light)) incident on the grip portion 33 is reflected by the colored region 33D, and the reflected light is detected by human vision, and the color (chromatic color) of the colored region 33D is detected. ) Will be recognized.

  Here, when the light incident on the grip portion 33 formed of synthetic resin is reflected by the colored region 33D and emitted to the outside of the grip portion 33, the concave region 33B and the convex region 33A having different curvatures and the connecting curved surface Therefore, the light emitted from the grip portion 33 is not refracted in a uniform direction but is refracted in various directions. For this reason, it becomes visible larger than the diameter of the hollow hole 33C colored with the dye.

In addition, when the light incident on the grip portion 33 formed of synthetic resin is reflected by the colored region 33D and emitted to the outside of the grip portion 33, a part of the light is reflected at the surface boundary of the grip portion 33. Is returned to the inside. Moreover, since the concave regions 33B, the convex regions 33A, and the connecting curved surfaces having different curvatures have different reflectivities, the emitted light (part) is diffusely reflected in the grip portion 33, so that the hollow colored with the dye The diameter becomes larger than the diameter of the hole 33C.

Further, since the narrow body portion 32 and the base end portion 34 are formed so as to be cut into a polyhedron, they are colored with a dye due to light refraction and light irregular reflection in the same manner as the grip portion 33. The diameter becomes larger than the diameter of the hollow hole 33C.
Here, the fact that the diameter is larger than the diameter of the hollow hole 33C colored with the dye means that, for example, when the diameter of the hollow hole 33C is φ5 mm, the diameter can be made larger than 5 mm.

  As described above, the driver 10 and its grip 30 according to the present embodiment are visually recognized to be larger than the diameter of the hollow hole 33C colored so as to be suitable for being gripped by a human hand and dyed. The outer peripheral surface is molded so as to be possible. For this reason, tool grips that are suitable for tools that are operated manually and that have excellent design (color design), and tools equipped with such tool grips with high productivity (excellent mass production) Can be provided by sex).

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is indicated not by the above description but by the scope of the utility model registration request, and is intended to include all modifications within the meaning and scope equivalent to the scope of the utility model registration request.

  The present invention can be suitably applied to a manually operated tool such as a screwdriver, a hammer, and a wire stripper, and is particularly suitable in terms of providing a high-productivity grip for a tool excellent in design (color design). Can be applied to.

10 Driver 20 Rigid part 21 Spiral fitting part 22 Joining shaft 30 Grip part

Claims (12)

A tool grip suitable for a tool held by a human hand,
The clip is made of synthetic resin and is formed in a desired shape suitable for being gripped by a human hand,
The synthetic resin is colorless and transparent or colored and transparent after being formed into a desired shape,
A tool grip, wherein at least a part of the grip is colored in a color different from the color of the synthetic resin by a colorant having excellent colorability with respect to the synthetic resin.   The tool grip according to claim 1, wherein the colorant is a dye.   3. The tool grip according to claim 1, wherein at least a part of the grip is colored so that a type of tool can be recognized visually by a person who looks at the grip. 4.   The grip for a tool according to any one of claims 1 to 3, wherein a portion of the grip that comes into contact with a human hand is colored.   The tool grip according to any one of claims 1 to 3, wherein a portion of the grip that does not come into contact with a human hand is colored. The grip has a substantially cylindrical shape, and one end face is provided with a hollow hole into which a joining shaft that is a part of the tool is fitted and the working area of the tool is fixed to the grip,
The tool grip according to claim 5, wherein at least a part of the grip in the hollow hole is colored. The depth of the hollow hole is longer than the insertion length of the joining shaft,
The tool grip according to claim 6, wherein a portion of the hollow hole into which the joining shaft is not inserted is at least colored.   The grip surface is formed in a desired shape suitable for being gripped by a human hand and in a shape that is visible larger than the diameter of the hollow hole colored with the colorant. The tool grip according to claim 6 or 7.   The tool grip according to claim 8, wherein the tool grip is visible larger than the diameter of the hollow hole colored with the colorant due to refraction of light incident on the synthetic resin.   The tool grip according to claim 8, wherein light incident into the synthetic resin is diffusely reflected so that it can be visually recognized larger than the diameter of the hollow hole colored with the colorant.   The outer peripheral surface of the grip is formed by continuously and continuously forming a concave region and a convex region in the circumferential direction, and can be visually recognized by the behavior of light in these regions larger than the diameter of the hollow hole colored with the colorant. The tool grip according to claim 9 or 10, wherein the grip is for a tool.   The tool provided with the grip for tools in any one of Claims 1-11.

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