JP4201551B2 - Hand tools - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure for separating an action member and a handle member constituting a daily hand tool such as scissors, pliers, knives, forks, knives, and drivers.
[0002]
[Prior art]
As a conventional hand tool, for example, scissors are composed of an action member made of metal and a handle member made of synthetic resin attached to the base end side. Specifically, the action member and the handle member are integrated in an inseparable manner by injecting molten resin in a state where the action member is set in the mold in advance and molding the handle member. It is manufactured. On the other hand, with the recent trend of resource reuse, metal working members and synthetic resin handle members are separated and collected. As an example of the scissors that can be collected, a handle member formed in a separate manufacturing process and a metal working member are attached to each other with a connecting pin member, and the connecting pin is covered with a cover member No scissors have come to market.
[0003]
[Problems to be solved by the invention]
However, in the conventional hand tool or scissors, after the cover member is removed and the connecting pin is further removed, the working member and the handle member have to be separated from each other, so that the separation work is troublesome. It was happening. Further, in order to provide the hand tool with a separable configuration, it is necessary to provide separate parts such as a connecting pin and a cover member, which causes a problem that the structure is complicated and the cost is increased.
[0004]
The object of the present invention is to solve the above-mentioned problems and to easily separate the working member and the handle member of the hand tool and increase the number of manufacturing steps and the number of parts even with a separable configuration. It is to provide a hand tool that is not allowed to occur.
[0005]
[Means for Solving the Problems]
The hand tool according to the present invention is a hand tool composed of an action member and a handle member, and the action member base end portion and the handle member base end portion are fitted to each other, and the base end portion of the one member is It is assumed that a through hole or a bottomed hole is provided, and that the outer peripheral end surface or the inner end surface of the base end portion of the other member is exposed in the through hole or bottomed hole region. As a specific aspect, the action member base end fits into the handle member base end, a through hole or a bottomed hole is provided in the base end of the handle member, and the inside of the through hole or the bottomed hole region The outer peripheral end surface or the inner end surface of the base end portion of the action member is exposed.
[0006]
If it is such, by inserting a rod-like tool or the like in the vicinity of the outer peripheral end surface of the base end portion of the working member in the through hole or bottomed hole region, and lying in the direction opposite to the direction in which the working member is located, The action member can be separated from the handle member by forcibly extruding the outer peripheral end surface of the base end portion of the action member with a rod-shaped tool or the like, and the action member and the handle member can be easily separated. The same applies when the inner end face is exposed. Here, the inner end surface means an inner vertical surface of a through hole or a bottomed hole for inserting a rod-shaped tool or the like into the action member.
[0007]
Moreover, if the said handle member is a synthetic resin and it is a hand tool manufactured by insert molding with the said action member, the manufacturing method same as the manufacturing method employ | adopted as the conventional hand tool which is not separately designed Therefore, it is possible to adopt a configuration that can be separated without increasing the number of new parts or complicating the manufacturing method.
[0008]
Further, in the through-hole or bottomed hole region, it approaches or substantially comes into contact with the outer peripheral end surface of the base end portion of the action member, and is separated from the handle member when the base end portion of the action member is pushed out by the rod-shaped tool. If a thin-walled separation portion that can be a cylindrical separation piece is provided, it is possible to prevent direct contact between the outer peripheral end surface of the base end portion of the working member and the slide mold during molding, so when the slide mold is slid Can be prevented from being damaged. In the sorting operation, direct contact with the bar-shaped tool or the like can be prevented, and the bar-shaped tool or the like can be prevented from being damaged. In addition, once the action member and the handle member are separated, the thin separation portion is also broken and separated so that it can be visually recognized. Can be prevented from being used. The same applies when the inner end face is exposed.
[0009]
In addition, if the structure with which the said action member and the handle member are mutually fitted by the uneven | corrugated relationship is employ | adopted, it will become easy to make compatible the structure which can be separated from each other, and the structure which ensures the fitting intensity | strength which can be used.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, scissors will be described in detail among the hand tools that are considered to have a high daily use frequency in the embodiments of the present invention.
[0011]
FIG. 1 is a schematic perspective view of a scissor according to the present invention, FIG. 2 is a sectional view showing a main part of the scissor sorting structure, FIG. 3 is a front view of the main part showing the sorting structure, and FIG. 4 is an exploded perspective view. The figure is shown. The scissors 1 of the present invention form a pair of action members 2 made of metal or the like, and the pair of action members 2 are fitted to a pair of handle members 3 that are often made of synthetic resin. Is. The action member 2 includes an action area 21 formed at one side edge in the tip area of the scissors 1, a hole 22 for penetrating the fixing member 41 and coupling the pair of action members 2, and an action member base end part 20, and the handle member 3 includes a handle member base end 30 and a grip ring 13 for hooking fingers. Here, the action member base end portion 20 refers to a region of the action member 2 that is swallowed by the handle member 3 by fitting the action member 2 and the handle member 3 together. Further, the handle member base end portion 30 refers to a region in which the action member base end portion 20 is swallowed by fitting the action member 2 and the handle member 3 together.
[0012]
The action member base end portion 20 of the action member 2 has a recess 15 that fits in an uneven relationship in order to maintain the positional relationship between the action member 2 and the handle member 3, and a handle in the action member 2 when fitting. It is comprised by the outer side end surface which faces the member 3 side, ie, the base end part outer peripheral end surface 12. As shown in FIG. The concave portion 15 is formed with a convex portion 35 formed on the handle member base end portion 30 at the time of insert molding, and maintains a concave-convex relationship with the convex portion 35. The structure which does not separate is taken.
[0013]
The handle member base end portion 30 of the handle member 3 includes a through-hole region 11A by including a through-hole 11 formed to penetrate in the thickness direction, and the through-hole region 11A has a through-hole vertical surface. 11B and a thin-walled separation portion 14 that extends in a direction perpendicular to the longitudinal direction of the action member 2 and is integrated with the handle member 3 is formed. The through-hole region 11A is separated into two regions by the thin-walled separation portion 14, and a region for inserting a rod-like tool or the like for the separation work described later in the region on the reaction member side of the two regions. A tool insertion region 11AA is formed between the thin-walled separation portion 14 and the through hole vertical surface 11B. Of the two regions, the base end portion outer peripheral end face 12 of the action member 2 is located in the action member side region, and is in a positional relationship in which the thin separation portion 14 is approached or substantially in contact. In addition, although the said base end part outer peripheral end surface 12 becomes the aspect substantially covered with the said thin-shaped separation part 14, it is contained in the concept exposed in 11 A of through-hole area | regions said to this invention. Shall.
[0014]
Next, the sorting work method at the time of discarding the scissors 1 will be described with reference to FIG. 2 and FIG. 5 showing the state of sorting work. A rod-shaped tool, for example, a flathead screwdriver is prepared in advance, and the tip of the flathead screwdriver is inserted into the tool insertion area 11AA of the through hole 11 as indicated by the imaginary line in FIG. Next, the flathead screwdriver is laid down toward the position indicated by the solid line in the same manner as in the manner of rotating the screwdriver in the direction opposite to the direction in which the action member 2 is located. Then, according to the lever principle, the tip of the minus driver rotates clockwise while using the upper edge portion of the through hole vertical surface 11B on the grip ring 13 side as a fulcrum, and the tip of the minus driver comes into contact with the thin-walled separation portion 14. Further, when the above-mentioned lodging is continued, the tip of the flat-blade screwdriver forcibly pushes the base end portion outer peripheral end surface 12 toward the tip end of the action member 2 through the thin-walled separation portion 14. After the flathead screwdriver is lowered to the lower limit, the flathead screwdriver is pulled out from the tool insertion region 11A, the action member 2 and the handle member 3 are gripped with a bare hand, and both members can be separated by pulling in opposite directions.
[0015]
More specifically, the thin-walled separation portion 14 is destroyed by the force integrated with the handle member 3 due to the rotating force of the tip of the flathead screwdriver, and separates the thin-walled separation piece (not shown) from the handle member 3, The base end outer peripheral end face 12 is extruded through the thin-walled separation piece. At the same time, the concave / convex relationship maintained by the concave portion 15 at the working member base end portion 20 and the convex portion 35 at the handle member base end portion 30 is also moved relative to the convex portion 35 by the extrusion. It is canceled by this. Therefore, the action member 2 and the handle member 3 can be separated from each other by pulling in the opposite directions with bare hands due to the destruction.
[0016]
Further, once the thin-walled separation piece is separated from the handle member 3, the scissors 1 are configured to visually recognize that the action member 2 and the handle member 3 have been separated, and are reassembled by accidental fitting. It is possible to prevent that.
[0017]
In addition, as a preferable design for facilitating the sorting operation, in FIG. 3, the width l of the recess 15 in the action member base end 20 is set so that the action member 2 is exposed in the through hole 11. It may be the same as or smaller than the dimension L of the portion. By adopting such a configuration, the forcible extrusion of the action member 2 caused by the slack of the flat-blade screwdriver reliably releases the uneven relationship between the projection 35 of the handle member 3 and the projection 15 of the action member 2. Yes.
[0018]
Further, according to the present embodiment, the handle member base end portion 30 of the handle member 3 is set in a predetermined position by the insert molding method, that is, the action member base end portion 20 of the action member 2 is set in a predetermined position in a pair of molds. Then, a molding method can be employed in which the molten resin is injected into the mold to integrally mold the handle member base end portion 30 of the handle member 3. Therefore, since the molding method and the manufacturing method that have been conventionally employed can be employed while providing the above-described sorting structure, it is possible to avoid an increase in the manufacturing process, the manufacturing time, and the number of parts.
[0019]
Furthermore, if the structure in which the thin-walled separation portion 14 is formed in the through-hole region 11 is adopted, when the slide die inserted into the tool insertion region 11AA is extracted after molding, the slide die and the base end outer peripheral end surface 12 are Direct contact can be prevented, and slide-type scratches can be prevented.
[0020]
In addition, this invention is not limited to the structure of the said embodiment, For example, as shown in FIG. 6, you may comprise not the said through-hole 11 but the bottomed hole 31 in the handle member base end part 30. As shown in FIG. . Further, the working member side longitudinal section 23F (inward end surface) may be formed by providing a through hole 23 in the region of the working member base end portion 20 to the extent that a tip of a rod-shaped tool or the like can be inserted. Even if the working member side longitudinal section 23F is configured to approach or substantially contact the thin-walled separation portion 14, the above-described separation work can be performed.
[0021]
Moreover, it is also possible to employ | adopt embodiment of this invention for hand tools, such as a knife, a spoon, a fork, a kitchen knife, pliers, and a driver. In short, the configuration of the present invention can be applied to a tool in which the action member 2 and the handle member 3 are made of different materials.
[0022]
Further, not only the action member 2 and the handle member 3 are integrated by insert molding, but also the action member 2 is forcibly fitted into the handle member 3 which has been previously molded by injection molding and provided with the tool insertion region 11AA. The hand tool to be formed is also included in the concept of the present invention.
[0023]
In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
[0024]
【The invention's effect】
As described in detail above, according to the present invention, for example, a rod-shaped tool or the like is inserted in the vicinity of the outer peripheral end surface of the base end portion of the action member in the through hole or bottomed hole region, and the direction opposite to the direction in which the action member is located. By tilting in the direction, the outer peripheral end surface of the base end portion of the action member can be forcibly pushed out with a bar-shaped tool or the like, so that the action member can be detached from the handle member, and the action member and the handle member can be easily separated. Therefore, it is possible to provide a hand tool that effectively improves the convenience of separation and disposal without incurring an increase in the number of parts and cost.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view of scissors according to the present invention.
FIG. 2 is a cross-sectional view of a main part showing a scissors sorting structure according to the present invention.
FIG. 3 is a main part front view showing a scissor sorting structure according to the present invention.
FIG. 4 is an exploded perspective view of the scissors according to the present invention.
FIG. 5 is a main part enlarged view showing a state where the scissors according to the present invention are sorted.
FIG. 6 is a cross-sectional view of a main part showing another example of the separation structure.
[Explanation of symbols]
1 ... Hand tools (scissors)
2 ... Action member 3 ... Handle member 11 ... Through hole 11A ... Through hole area 11AA ... Tool insertion area 11B ... Through hole vertical surface 12 ... Base end outer peripheral end face 13 ... Grip ring 14 ... Thin-walled separation part 15 ... Recess 23 ... Through hole 31 ... Bottomed hole 35 ... Convex part 41 ... Fixing member

Claims (4)

A hand tool composed of an action member and a handle member, wherein the action member base end fits into the handle member base end, a through hole or a bottomed hole is provided in the base end of the handle member, and the through hole or hand tool, characterized in that it exposes the proximal end outer peripheral surface of the working member, or inner end faces in the bottomed hole area. The hand tool according to claim 1, wherein the handle member is made of synthetic resin and is manufactured by insert molding with the action member . In the through-hole or bottomed hole region, it approaches or substantially touches the outer peripheral edge of the base end of the working member, and is separated from the handle member when the base end of the working member is pushed out by a rod-shaped tool. The hand tool according to claim 1, further comprising a thin-walled separation portion that can be a separation piece . The hand tool according to claim 1, 2, or 3, wherein the action member and the handle member are fitted to each other in an uneven relationship .

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