CN1478635A

CN1478635A - Hand tool

Info

Publication number: CN1478635A
Application number: CNA021553688A
Authority: CN
Inventors: 筱原胜
Original assignee: Kokuyo Co Ltd
Current assignee: Kokuyo Co Ltd
Priority date: 2002-08-30
Filing date: 2002-12-09
Publication date: 2004-03-03
Anticipated expiration: 2022-12-09
Also published as: JP2004090151A; CN1245280C; JP4201551B2

Abstract

Provided is a hand tool including a working member and a handle member, constructed so that both members can be separated from each other by a simple method without any increase in the number of manufacturing steps and parts. In this hand tool 1 composed of the working member 2 and the handle member 3, the handle member 3 is provided with a through hole 11 penetrating in the direction of thickness at the base end part 30 of the handle member, and the outer peripheral end face 12 of the working member base end part 20 in the working member 2 is exposed to the inside of the through hole area 11A in the through hole 11. The thus constructed hand tool 1 is manufactured by insert molding.

Description

Handheld tool

Technical field

The present invention relates to the handheld tool that uses in a kind of daily life, for example constitute the functional component of scissors, pliers, cutter, fork, kitchen cutter, screwdriver etc. and the isolating construction of handle component.

Background technology

As handheld tool always, for example in scissors, constitute by metal functional component that forms and the plastic handle component that is installed on its cardinal extremity.Specifically, in advance functional component is placed in the mould, the resin forming that injects fusion is a handle component, produces the scissors of the integral structure that functional component and handle component can not separate.In addition, along with the development of resource reutilization trend in recent years, become metal functional component and plastic handle component are reclaimed respectively.As an example of the scissors that may carry out above-mentioned recovery, sell on the market with the connecting pin parts handle component and metal functional component with the moulding of different manufacturing processes are installed in advance mutually, cover above-mentioned connecting pin portion and the scissors that constitutes with lid.

But, in above-mentioned handheld tool or scissors always owing to take off above-mentioned lid, take off connecting pin again after, also must make functional component and handle component disconnected from each other, can produce the cumbersome problem of detached job.Have again, possess the structure that to separate, must possess other parts such as connecting pin and lid, can produce the problem that structure complicated and cost rise in order to make handheld tool.

Summary of the invention

Purpose of the present invention is, a kind of elimination the problems referred to above point is provided, and can carry out the functional component of handheld tool and separating of handle component simply, and possessing simultaneously can separated structures, the handheld tool that manufacturing process and number of parts are increased.

The handheld tool that the present invention is correlated with, it is the handheld tool that constitutes by functional component and handle component, it is characterized in that, functional component base end part and handle component base end part are chimeric mutually, the above-mentioned wherein base end part of a side parts is provided with through hole or bottom outlet is arranged, at above-mentioned through hole or have the peripheral end face or the inner side end of the base end part of the parts that make above-mentioned the opposing party in the bottom outlet zone to expose.As concrete form, it is characterized in that, the functional component base end part is embedded in the handle component base end part, and above-mentioned handle component base end part is provided with through hole or bottom outlet is arranged, at above-mentioned through hole or have above-mentioned functional component peripheral end face or inner side end are exposed.

If the handheld tool of this structure, insert bar-shaped instrument etc. at above-mentioned through hole or near above-mentioned functional component base end part peripheral end face in the bottom outlet zone is arranged, topple over by make bar-shaped instrument etc. to the direction opposite with the functional component locality, forcibly the base end part peripheral end face of above-mentioned functional component is extruded with bar-shaped instrument etc., functional component can break away from from handle component, and functional component is easy to separate with handle component.And, under the situation that inner side end exposes too.Here said inner side end, the inboard vertical plane that promptly is used to insert the through hole of bar-shaped instrument etc. on the functional component or bottom outlet is arranged.

In addition, as above-mentioned handle component is synthetic resin, it is the handheld tool that utilizes produced by insert molding (INSERT MOLDING) manufacturing to form with above-mentioned functional component, since can adopt with handheld tool that always non-split designs in the identical manufacture method of manufacture method that adopts, do not increase new parts and make manufacture method complicated, just can adopt separable structure.

Have again; at above-mentioned through hole or have in the bottom outlet zone, as be provided with thin wall shape separation portion near making the base end part outer peripheral edges end face of above-mentioned functional component, during moulding; owing to can prevent that the base end part peripheral end face of above-mentioned functional component from directly contacting with sliding die, can prevent to damage when above-mentioned sliding die from sliding.During detached job, can prevent to contact, can prevent bar-shaped instrument equivalent damage with the direct of bar-shaped instrument.And in a single day functional component separates with handle component, because above-mentioned thin wall shape separation portion is also destroyed, becomes that visually can to recognize be the structure of the parts after separating, and therefore can prevent to be used because of erroneous judgement re-assemblies under incomplete state.Also have, under the situation that inner side end exposes too.

In addition, above-mentioned functional component and handle component be if adopt mutually with the chimeric structure of concavo-convex relation, at an easy rate and obtain the structure that can be separated from each other and guarantee the structure of durable chimeric intensity.

Description of drawings

Fig. 1 represents is the brief strabismus map of the present invention's scissors of being correlated with.

Fig. 2 represents is the isolating construction major part profile of the present invention's scissors of being correlated with.

Fig. 3 represents is the isolating construction major part front view of the present invention's scissors of being correlated with.

Fig. 4 represents is the exploded perspective view of the present invention's scissors of being correlated with.

Fig. 5 represents is the major part enlarged drawing of the present invention's scissors detached job state of being correlated with.

What Fig. 6 represented is the major part profile of other isolating constructions.Symbol description

1 handheld tool (scissors)

2 functional component

3 handle components

11 through holes

The 11A via regions

The 11AA instrument inserts the zone

11b through hole vertical plane

12 base end part peripheral end faces

13 gripper rings

14 thin wall shape separation portions

15 recesses

23 through holes

31 have bottom outlet

35 protuberances

41 fixation kits

The specific embodiment

Below with regard in embodiment of the present invention, the scissors in the higher handheld tool of daily frequency of utilization is elaborated.

Fig. 1 represents is the brief strabismus map of the present invention's scissors of being correlated with, and what Fig. 2 represented is the major part profile of the isolating construction of above-mentioned scissors, and what Fig. 3 represented is the major part front view of isolating construction, and what Fig. 4 represented is exploded perspective view.Scissors 1 of the present invention forms a pair of functional component of being made by metal 2, and above-mentioned a pair of functional component 2 embeds a pair of mostly by in the handle component 3 of synthetic resin manufacturing and constitute.Functional component 2 is by the zone of action 21 that is formed at scissors 1 front end area one side edge part; Make fixation kit 41 connect and make the hole 22 of a pair of functional component 2 combinations; And functional component base end part 20 formations, handle component 3 is made of handle component base end part 30 and the gripper rings 13 that finger colludes into usefulness.And functional component base end part 20 herein owing to make functional component 2 and handle component 3 chimeric, is referred to as the zone of being swallowed handle component 3 in the site of action 2.And handle component base end part 30, owing to make functional component 2 and handle component 3 chimeric, for swallowing the zone of functional component base end part 20 in the handle component 3.

The functional component base end part 20 of above-mentioned functional component 2 is by concerning with the chimeric recess 15 of concavo-convex relation for the position that keeps functional component 2 and handle component 3; Constitute with handle component 3 opposite external side end face base end part peripheral end faces 12 on the functional component 2 when chimeric.Formed protuberance 35 is to form when produced by insert molding on the above-mentioned handle component base end part 30, and above-mentioned recess 15 adopts with raised part 35 and keeps concavo-convex relation mutually, and functional component 2 can unexpected separated structures with handle component 3.

The handle component base end part 30 of above-mentioned handle component 3, be provided with the through hole 11 that connects thickness direction formation and therefore have via regions 11A, in above-mentioned via regions 11A, be formed on the vertical direction of the longitudinally of through hole vertical plane 11B and functional component 2 on extend and separate portion 14 with the thin wall shape of handle component 3 one.In addition, above-mentioned via regions 11A is separated into 2 zones by above-mentioned thin wall shape separation portion 14, in the territory, reaction member lateral areas in above-mentioned 2 zones, instrument inserts the zone that regional 11AA inserts usefulness such as bar-shaped instrument as carrying out detached job described later, is formed between thin wall shape separation portion 14 and the through hole vertical plane 11B.Also have, in above-mentioned 2 zones, the base end part peripheral end face 12 of functional component 2 is positioned at the zone of functional component one side, for separating portion's 14 position approaching or that be connected generally relations with above-mentioned thin wall shape.Above-mentioned base end part peripheral end face 12 though be the forms that covered generally by above-mentioned thin wall shape separation portion 14, comprises the said notion that is exposed in the via regions 11A of the present invention.

Fig. 5 of state when next, the detached job method when discarded is with reference to Fig. 2 and expression detached job to scissors 1 describes.Prepare bar-shaped instrument in advance, a word screwdriver for example inserts in the regional 11AA as the instrument that like that a word screwdriver front end is inserted through hole 11 shown on the dotted line of Fig. 5.One word screwdriver is toppled over for the solid line position of main points in same figure to the direction rotation opposite with the locality of functional component 2.So by the principle of lever, be fulcrum with the rising wood of gripper rings 13 sides of through hole vertical plane 11B, an above-mentioned word screwdriver front end right rotation is rotated, and a word screwdriver front end separates portion's 14 contacts with thin wall shape.And, if continue above-mentionedly to topple over, a word screwdriver front end then by above-mentioned thin wall shape separation portion 14 with above-mentioned base end part peripheral end face 12 forcibly to the preceding extreme direction extrusion of functional component 2.After one word screwdriver being poured onto topple over boundary, a word screwdriver in inserting regional 11AA, is extracted by instrument, free-hand gripping functional component 2 and handle component 3, and pulling round about can be with two isolation of components.

If be described in detail, above-mentioned thin wall shape separation portion 14, the power by a word screwdriver front end rotates makes with handle component 3 incorporate destructurized, make not shown thin wall shape separate sheet when handle component 3 separates, above-mentioned base end part peripheral end face 12 is extruded by this thin wall shape separate sheet.Simultaneously, with the concavo-convex relationship that recess on the above-mentioned functional component base end part 20 15 and the protuberance 35 on the above-mentioned handle component base end part 30 are kept, also because above-mentioned extrusion is moved, above-mentioned recess 15 moves and is disengaged relative to raised part 35.Therefore, because above-mentioned destruction, functional component 2 is promptly separable by free-hand pulling round about with handle component 3.

And, if the thin-walled separate sheet from handle component 3 in case separate, the constituting of scissors 1 visually can be found out separating of functional component 2 and handle component 3, thereby can prevent owing to make a mistake situation about re-assemblying.

In addition, as making the easier preferred design of carrying out of above-mentioned detached job, in Fig. 3, the width dimensions l of the recess 15 on the functional component base end part 20 is identical or smaller also passable with the size L of functional component 2 exposed portions serve in above-mentioned through hole 11.If adopt this structure, forcibly extrude by the functional component 2 that causes by toppling over of an above-mentioned word screwdriver, can remove the concavo-convex relationship of protuberance 35 with the recess 15 of functional component 2 of handle component 3 really.

Have again, according to the present embodiment, the handle component base end part 30 of handle component 3, can adopt the produced by insert molding method, promptly adopt functional component base end part 20 with above-mentioned functional component 2 to be fixed on the assigned position in a pair of mould, by thereafter the resin of fusion being injected in the mould, with the handle component base end part 30 integrated forming methods of handle component 3.Therefore, possessed above-mentioned isolating construction,, also can avoid increasing problems such as manufacturing process, manufacturing time and amount of parts owing to can adopt forming method and the manufacture method that always adopts.

Also have,, when the sliding die that the insertion instrument is inserted regional 11AA is extracted, can prevent that sliding die from directly contacting with base end part peripheral end face 12, can prevent the damage of sliding die after moulding if adopt the structure of formation thin wall shape separation portion 14 via regions 11 in.

And the present invention is not limited to the structure of above-mentioned embodiment, and is for example shown in Figure 6, in handle component base end part 30, do not have above-mentioned through hole 11 and to be formed with bottom outlet 31 also passable.In the zone of functional component base end part 20, can insert the through hole 23 of degree, also can thereby form functional component side vertical section 23F (inner side end) by front ends such as bar-shaped instrument are set.Above-mentioned functional component side vertical section 23F separate with thin wall shape portion 14 near or generally near and constitute, can carry out the detached job of above-mentioned main points.

And embodiment of the present invention also can adopt in handheld tools such as cutter, spoon, fork, kitchen cutter, pliers, screwdriver.Importantly, of the present invention constituting can adopt functional component 2 and handle component 3 to be the instrument of unlike material.

In addition, for not only utilizing produced by insert molding that functional component 2 and handle component 3 is integrally formed, the hard row of functional component 2 embedded utilize injection moulding moulding in advance and have that instrument inserts in the handle component 3 of regional 11AA and the handheld tool that forms is also contained in the notion of the present invention.

In addition,, also be not limited to above-mentioned embodiment, can in the scope that does not break away from purport of the present invention, carry out various distortion for the concrete structure of each one.

As mentioned above, according to the present invention, for example, with the above-mentioned through hole of insertions such as bar-shaped instrument or have near the base end part peripheral end face of the above-mentioned functional component in the bottom outlet zone, by to toppling over functional component position opposite direction, extrude forcibly with the base end part peripheral end face with above-mentioned functional component such as bar-shaped instrument, functional component can break away from from handle component, thereby functional component can be separated at an easy rate with handle component.Thus, can provide a kind of amount of parts and cost of not increasing, improve discarded respectively convenience effectively.

Claims

1, a kind of handheld tool, it is the handheld tool that constitutes by functional component and handle component, it is characterized in that, functional component base end part and handle component base end part are chimeric mutually, the base end part of an above-mentioned quadrate part spare is provided with through hole or bottom outlet is arranged, at above-mentioned through hole or have the peripheral end face of the base end part that makes above-mentioned the opposing party's parts in the bottom outlet zone or inner side end to expose.

2, a kind of handheld tool, it is the handheld tool that constitutes by functional component and handle component, it is characterized in that, the functional component base end part embeds in the handle component base end part, above-mentioned handle component base end part is provided with through hole or bottom outlet is arranged, at above-mentioned through hole or have the peripheral end face or the inner side end that make above-mentioned functional component in the bottom outlet zone to expose.

3, handheld tool as claimed in claim 2 is characterized in that, above-mentioned handle component is the synthetic resin material, utilizes the produced by insert molding manufacturing with above-mentioned functional component.

As claim 1,2 or 3 described handheld tools, it is characterized in that 4, above-mentioned through hole or have in the bottom outlet zone is provided with thin wall shape separation portion near the base end part outer peripheral edges end face of above-mentioned functional component or the inner side end.

5, the handheld tool described in claim 1,2,3 or 4 is characterized in that, above-mentioned functional component and handle component are with the concavo-convex tabling that concerns.