CN102756384B

CN102756384B - Practical knife with tool magazine

Info

Publication number: CN102756384B
Application number: CN201210224220.3A
Authority: CN
Inventors: 石振华
Original assignee: Hangzhou Great Star Industrial Co Ltd
Current assignee: Hangzhou Great Star Industrial Co Ltd
Priority date: 2012-06-28
Filing date: 2012-06-28
Publication date: 2015-07-08
Anticipated expiration: 2032-06-28
Also published as: CN102756384A

Abstract

The invention discloses a practical knife with a tool magazine, which belongs to a manual tool and overcomes the defects of the conventional practical knife that the knife head is thick, materials are wasted, and a backup blade is difficult to be automatically assembled on a knife rest from a tool magazine. The practical knife comprises a knife handle and a knife head assembled with the knife handle, wherein a retractable knife rest is assembled in the knife head; and a blade is assembled on the knife rest. The practical knife is characterized in that the tool magazine arranged on one side of the knife rest is arranged in the knife head and is provided with a storage part matched with the blade in shape. The tool magazine is arranged in parallel to the knife rest in the knife head, thereby achieving structural support for automatically assembling the backup blade from the tool magazine to the knife rest; and an openable cover plate for changing the blade is not needed to arrange in the knife head structure, so that the thickness of the knife head is reduced, and the materials are saved.

Description

With the replaceable blade utility knife of tool magazine

Technical field

The invention belongs to hand-operated tools, specifically a kind of replaceable blade utility knife with tool magazine.

Background technology

The replaceable blade utility knife of existing common structure has two kinds, one is flexible cutter, namely in handle of a knife, scalable knife rest is assembled, blades on knife rest, by flexible knife rest blade stretched out during use or retract, for the ease of more allowing blade replacement, handle of a knife arranges tool magazine, spare blade is settled in tool magazine, so that spare blade can be assemblied on knife rest automatically after being taken off by telescopic blade, " cutter of automatic tool changer " that ZL02266103.4 Chinese invention patent (Authorization Notice No. is CN2593983Y) discloses namely belongs to the replaceable blade utility knife of this spline structure, its spare blade is placed in protecgulum cavity, blade can be released for exchange automatically one by one, easy to use, exchange rapidly, another kind is jackknife, and it assembles rotating cutter head at handle of a knife by pivot, blades on cutter head, can by cutter head together with blade folded or expansion by rotation blade, and the replaceable blade utility knife of this spline structure, does not have spare blade, is therefore not easy to more allowing blade replacement.And the replaceable blade utility knife (as previously mentioned) of existing stretching structure form, because its tool magazine (also have and cry cutter box, cutter storehouse) all just need can take spare blade from the side opening opening plate of handle of a knife, therefore time on the cutter head tool magazine of this version being applied to jackknife, the thickness of cutter head certainly will be increased, and then increase the thickness of handle of a knife, and the cover plate being positioned at side will affect cutter head folding to handle of a knife.

Summary of the invention

The technical assignment of the technical problem to be solved in the present invention and proposition is that the cutter head thickness overcoming existing replaceable blade utility knife is comparatively large, waste material, be difficult to realize spare blade and be automatically assembled to defect knife rest from tool magazine, provides the replaceable blade utility knife of band tool magazine in a kind of cutter head.

For achieving the above object, the cutter head that the replaceable blade utility knife of band tool magazine of the present invention comprises handle of a knife, assembles with handle of a knife, the telescopic knife rest of assembling in cutter head, blades on knife rest, it is characterized in that: the tool magazine being set in the side of described knife rest in described cutter head, described tool magazine has the storage part adapted with blade shapes.

As optimization technique means, described cutter head has opening, described tool magazine is by the rotating opening be assemblied on described cutter head also described in correspondence of bearing pin.

As optimization technique means, described cutter head is pivotally connected on handle of a knife, and the belly of described handle of a knife has the accommodating groove for receiving described cutter head.Further: described handle of a knife is provided with arc-shaped groove, described arc-shaped groove with the center of described pivot for the center of circle, the edge of arc-shaped groove is provided with breach, and establish a slide block touched by described knife rest in described cutter head, described slide block is provided with the protuberance being positioned at described arc-shaped groove.On described slide block, effect has elastic component and described protuberance remains in described breach by the elastic force of described flexible member.Described slide block can be located in described cutter head slidingly back and forth, the breach of described protuberance when described cutter head launches described in correspondence.Described slide block connects two parallel edges that can slide in described cutter head by arcus part and forms; Concrete, described protuberance is positioned at described arcus part.The setting of this structure is to ensure to only have when knife rest returns to (near pivot) bottom cutter head, now blade is in cutter head completely, just can overturn cutter head is folded to handle of a knife, on the one hand prevent from cutter head in the process of folding storage because blade exposes may damage people, also the length of handle of a knife can be shortened on the other hand further, to reach the object of saving material, reducing costs.

As optimization technique means, described cutter head can being assemblied in described handle of a knife of slide anteroposterior.

As optimization technique means, the belly of described handle of a knife offers window.

The invention has the beneficial effects as follows:

1. tool magazine and knife rest are set up in parallel in cutter head, be automatically assembled to knife rest provide structural support for realizing spare blade from tool magazine;

2. cutter head structure does not need to arrange the openable cover plate for more allowing blade replacement, and therefore the thickness of this cutter head is reduced, and saves material;

3. further due to the reduction of cutter head thickness thus the thickness of handle of a knife also can correspondingly reduce.

Accompanying drawing explanation

Fig. 1 is a kind of structural representation of the present invention;

Fig. 2 is that A-A in Fig. 1 is to sectional view;

Fig. 3 is that B-B in Fig. 2 is to sectional view;

Fig. 4 is that C-C in Fig. 2 is to sectional view;

Fig. 5 is that structure shown in Fig. 1 is by the schematic diagram in blade indentation cutter head;

Fig. 6 is that D-D in Fig. 5 is to sectional view;

Fig. 7 is that E-E in Fig. 6 is to sectional view;

Fig. 8 is that F-F in Fig. 6 is to sectional view;

Fig. 9 is the schematic diagram folded in the blade of structure shown in Fig. 1 indentation cutter head and by cutter head;

Figure 10 is the partial sectional view of cutter head shown in Fig. 1;

Figure 11 is that G-G in Figure 10 is to cutaway view Amplified image;

Figure 12 is the schematic diagram of cutter head shown in Fig. 1;

Figure 13 is that H-H in Figure 12 is to cutaway view Amplified image;

Figure 14 is that cutter head shown in Fig. 1 is by the schematic diagram of blade indentation;

Figure 15 is that I-I in Figure 14 is to cutaway view Amplified image;

Figure 16 is that J-J in Figure 14 is to sectional view;

Figure 17 is the schematic diagram that tool magazine flips out by cutter head shown in Fig. 1;

Figure 18 is the assembly relation schematic diagram of cutter head shown in Fig. 1;

Figure 19 is another kind of structural representation of the present invention;

Number in the figure illustrates: 1-handle of a knife, 2-cutter head, 3-knife rest, 4-blade, 5-tool magazine, 6-storage part, 7-bearing pin, 8-pivot, 9-arc-shaped groove, 10-breach, 11-slide block, 12-protuberance, 13-arcus part, 14-parallel edges, 15-flexible member, 16-button, 17-blade lock.

Detailed description of the invention

Below in conjunction with Figure of description, the present invention will be further described.

The replaceable blade utility knife of band tool magazine of the present invention, as shown in Fig. 1-18, Figure 19, it cutter head 2 comprising handle of a knife 1, assemble with handle of a knife 1, the telescopic knife rest 3 of assembling in cutter head 2, blades 4 on knife rest 3, be set in the tool magazine 5 of the side of knife rest 3 in cutter head 2, tool magazine 5 has the storage part 6 adapted with blade shapes.This cutter head structure does not need to arrange the openable cover plate for more allowing blade replacement, and therefore the thickness of this cutter head is reduced, and saves material; And, tool magazine and knife rest are set up in parallel in cutter head, automatically be assembled to knife rest from tool magazine for realizing spare blade structural support is provided, the structure that blade is assembled to knife rest automatically from tool magazine is realized to use prior art, being pushed open by blade lock 17 by pressing that girl 16 as shown in Figure 11, Figure 13, Figure 15, extracting blade, the spare blade on tool magazine can enter knife rest (as by spring suppression or magnet steel absorption) automatically, extract release button after blade, make blade lock reset.

Further, cutter head 2 has opening, tool magazine 5 to be assemblied on cutter head 1 and corresponding opening by bearing pin 7 is rotating, to rotate out by tool magazine in cutter head, deposits, takes spare blade.

embodiment 1

A kind of version as cutter head and handle of a knife assemble: as shown in figs 1-9, cutter head 2 is connected on handle of a knife 1 by pivot 8, and the belly of handle of a knife 1 has the accommodating groove for receiving cutter head, thus as shown in Figure 9 cutter head upset can be folded to accommodating groove.

Further, handle of a knife 1 is provided with arc-shaped groove 9, and arc-shaped groove 9 is with the center of pivot 8 for the center of circle, and the edge of arc-shaped groove 9 is provided with breach 10, establishes a slide block touched by knife rest 11 in cutter head 1, and slide block 11 is provided with the protuberance 12 being positioned at arc-shaped groove 9.The rotation that arc-shaped groove is protuberance provides space, and breach is used for positioning salient, and then is forbidden rotating in cutter head location.Then: on slide block 11, effect has elastic component 15 and protuberance 12 remains in breach 10 by the elastic force of flexible member 15; Slide block 11 can be located in cutter head slidingly back and forth, and protuberance 12 is corresponding breach 10 when cutter head 2 launches, therefore, promotes slide block 11 move by the slip (during indentation) of knife rest 3, makes protuberance 12 deviate from breach 10 so that folding cutter head; Slide block 11 connects two parallel edges that can slide in cutter head 14 by arcus part 13 and forms, and protuberance 12 is positioned at arcus part, this compact conformation, flexible movements.

embodiment 2

As the another kind of version that cutter head and handle of a knife assemble, as shown in figure 19, cutter head 2 can slide anteroposterior be assemblied in handle of a knife 1, tool magazine can be produced for picking and placeing spare blade from cutter head when cutter head is stretched out in handle of a knife.Further, the belly of handle of a knife offers window, to be produced for picking and placeing spare blade from cutter head by tool magazine by this window in time in cutter head indentation handle of a knife.

Claims

1. be with the replaceable blade utility knife of tool magazine, the cutter head (2) comprising handle of a knife (1), assemble with handle of a knife (1), the telescopic knife rest of assembling (3) in cutter head (2), the upper blades (4) of knife rest (3), it is characterized in that: be set in the side of described knife rest (3) in described cutter head (2) and the tool magazine (5) be set up in parallel with knife rest, described tool magazine (5) has the storage part (6) adapted with blade shapes; Described cutter head (2) has opening, and described tool magazine (5) is by the rotating opening be assemblied in described in the upper and correspondence of described cutter head (2) of bearing pin (7); Described cutter head (2) is connected on handle of a knife (1) by pivot (8), and the belly of described handle of a knife (1) has the accommodating groove for receiving described cutter head; Described handle of a knife (1) is provided with arc-shaped groove (9), described arc-shaped groove (9) with the center of described pivot (8) for the center of circle, the edge of arc-shaped groove (9) is provided with breach (10), establish a slide block (11) touched by described knife rest (3) in described cutter head (2), described slide block (11) is provided with the protuberance (12) being positioned at described arc-shaped groove (9).

2. the replaceable blade utility knife of band tool magazine according to claim 1, is characterized in that: to have elastic component (15) and described protuberance (12) remains in described breach (10) by the elastic force of described flexible member (15) in the upper effect of described slide block (11).

3. the replaceable blade utility knife of band tool magazine according to claim 1, is characterized in that: described slide block (11) can be located in described cutter head (2) slidingly back and forth, the breach (10) of described protuberance (12) when described cutter head (2) launches described in correspondence.

4. the replaceable blade utility knife of band tool magazine according to claim 1, is characterized in that: described slide block (11) connects two parallel edges (14) that can slide in described cutter head by arcus part (13) and forms.

5. the replaceable blade utility knife of band tool magazine according to claim 4, is characterized in that: described protuberance (12) is positioned at described arcus part (13).

6. the replaceable blade utility knife of band tool magazine according to claim 1, is characterized in that: the belly of described handle of a knife offers window.