CN201317004Y

CN201317004Y - Utility knife with stored blade

Info

Publication number: CN201317004Y
Application number: CNU2008201702745U
Authority: CN
Inventors: 王爱国
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-17
Filing date: 2008-12-17
Publication date: 2009-09-30
Anticipated expiration: 2018-12-17

Abstract

Disclosed is a utility knife with a stored blade, which comprises a knife body, a blade subassembly and a storage box. The knife body is provided with a storage inner cavity; the blade subassembly is telescopically arranged in the storage inner cavity of the knife body; and the storage box is used to store the blade and is inserted in the storage inner cavity of the knife body from tail to head. The utility knife is characterized in that the utility knife further comprises an end cover which can be detachably arranged at the rear end part of the knife body, and due to the end cover, the storage box is enveloped in the storage inner cavity. Compared with the prior art, the utility knife has the advantages that the rear end cover is detachably connected with the knife body, so the blade is convenient to replace, thus omitting the complicated design of a locking key or a locking mechanism. The utility knife is simple in overall structure, convenient to manufacture and low in manufacturing cost.

Description

Blade storage formula cutter

Technical field

The utility model relates to a kind of cutter, relates in particular to a kind of blade storage formula cutter.

Background technology

Cutter is a kind of common instrument, is widely used in people's daily life and work.When reality is used, blade is easily blunt, rapid wear and need to change blade, the cutter of existing many changeable blades, it assigns the knife storing box of the blade that is in store in the blade of cutter, when needs are changed blade, or change blade automatically, or need to extract knife storing box out, manually reinstall blade, and when the spare blade in the knife storing box uses up, must extract knife storing box out, insert spare blade again.

For realizing that knife storing box can movable being buckled on the blade, the general device that between knife storing box and blade, is provided with the movable plug of a kind of Gong knife storing box that cooperatively interacts, existing a kind of cutter, include blade, knife storing box, locking key, wherein knife storing box is inserted in the slot of blade from back to front, locking key is embedded at the knife storing box rear portion and knife storing box is up and down relatively, and the below of locking key also is provided with a pin to the side protrusion, be provided with a spring between its afterbody and knife storing box, the contact-making surface of this locking key and pin all is the inclined-plane, and the sidewall after the corresponding pin of blade is provided with the shrinkage pool that a side direction is protruded.When knife storing box and blade are fastened togather, spring reset, shrinkage pool and pin head are overlapped and are made shrinkage pool just in time can prop up pin; When needs are extracted knife storing box, press locking key, the contact-making surface of locking key and pin interacts and makes pin laterally movable inward, and the pin head shrinkage pool of just getting along well overlaps, thus knife storing box just can be extracted outside the blade.There is following shortcoming in the storage blade type cutter of this structure: first, it is to convert cross force by the vertical force that acts on the locking key to by the inclined-plane, thereby make pin do horizontal activity, but there is certain coefficient of friction between locking key and pin, to must overcome this frictional force by mobile pin, so just pushing of locking key relatively required great effort; The second, cutter is made material and is generally adopted plastics, exerts oneself the damage of breaking easily between locking key and pin frequently mutually; The 3rd, spring is installed between the afterbody and knife storing box of pin, because of it is exposed outside, in use deviate from easily, and spring is to rely on the deduction of the flange at pin middle part and knife storing box and fix, and assembles also cumbersomely, and has increased the manufacture difficulty of pin.

As improvement, another cutter has appearred in the prior art, referenced patent number is Chinese utility model patent " a kind of storage blade type cutter " (Granted publication number: CN201120616Y) of ZL200720192899.7, this patent has realized that by the improvement to locking key the convenient of blade picks and places.

In sum, the dismounting that more employing locking key or locking mechanism are realized Storage Box in the prior art, and most comparatively loaded down with trivial details with locking key or locking mechanism complex structure, parts, processing and moulding bring certain difficulty.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of blade simple in structure, easy accessibility to store the formula cutter at the above-mentioned state of the art.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of blade storage formula cutter comprises

Blade has the storage inner chamber;

Blade assembly telescopically is provided with the storage inner chamber with aforementioned blade;

Storage Box is used to deposit spare blade, is plugged in the storage inner chamber of aforementioned blade from back to front,

It is characterized in that also comprising

One end cap be located at the rearward end of described blade opening or closing, and described Storage Box is sealed in described blade because of aforesaid end cap setting up for safekeeping.

The concrete fit structure of end cap and blade is preferably as follows design: the upper surface of described end cap has the long and narrow fitting portion that tighten up to the middle part gradually at a two, accordingly, the storage inner chamber upper surface moulding of described blade is assembled into the caulking groove of a burnishing surface for aforementioned fitting portion; The bottom of described end cap and described fitting portion prolonging direction convex with limited post, and accordingly, the rearward end of described blade has the slot that plugs for aforesaid limited post; Described end cap convexes with the locating piece that a cross section roughly takes the shape of the letter U near described limited post, and accordingly, the rearward end of described blade has for aforementioned locating piece ccontaining to realize the accurately ccontaining territory of location.

Be convenient to arrange the inner space and consider production application, described blade is provided with an inserts around the storage inner chamber, and described blade assembly telescopically is located in the storage tank of aforementioned inserts, and described Storage Box then is located in the space between aforementioned inserts and the described blade inwall.

As preferably, described blade assembly comprises

Blade is used for cutting or cutting;

Blade holder fixedly installs for aforementioned blade;

Push button is located on the aforementioned knife rest, is used to drive blade holder and moves around; And

Keeper flexibly is located at aforementioned push button below and also can be moved up and down in vertical breach of aforementioned knife rest, accordingly, has the clamping mouth that the restriction blade holder moves for location, keeper end on the described inserts.The flexible location of blade assembly is by the cooperate realization of keeper with the clamping mouth.

As preferably, described keeper flexibly is arranged at described push button below by the elastic sheet metal that is provided with this keeper below.

Compared with prior art, advantage of the present utility model is: be connected with the detachable of blade by rear end cap, can change blade easily, need not to use comparatively complicated designs such as the strong or locking mechanism of locking, overall structure is simple, and is easily manufactured, and production cost is also cheaper.

Description of drawings

Fig. 1 is the example structure schematic diagram.

Fig. 2 is the embodiment decomposition assembling figure.

Fig. 3 is the blade structural representation.

Fig. 4 is the end cover structure schematic diagram.

Fig. 5 is a knife rest decomposition texture schematic diagram

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Embodiment: with reference to figure 1, shown in Figure 2, the blade storage formula cutter in the present embodiment comprises inserts 3, Storage Box 4 and the end cap 2. of blade, blade assembly 7, metal material

Blade 1 has the storage inner chamber, and inserts 3 is around blade 1 storage inner chamber setting, and blade assembly 7 telescopically is located in the storage tank of inserts 3.

Blade assembly 7 comprises blade 51, blade holder 8, push button 6 and keeper 71, blade 51 is used for cutting or cutting, blade holder 8 fixedly installs for blade 51, push button 6 is located at knife rest 8 upper surfaces, being used to drive blade holder 8 moves around, keeper 71 flexibly is located at push button 6 belows by elastic sheet metal 72 and can be moved up and down in vertical breach 81 of knife rest, accordingly, has a plurality of clamping mouths 61 that restriction blade holder 8 moves for location, keeper 71 ends on the inserts 3.Elastic sheet metal 72 is arranged at keeper 71 belows, puts in the plugging hole 82 of blade holder during installation and is installed on the blade holder 8.

Storage Box 4 has been deposited spare blade 52, is plugged in from back to front in the space between inserts 3 and blade 1 inwall, and end cap 2 is located at the rearward end of blade 1 opening or closing, and Storage Box 4 is sealed up for safekeeping in blade 1 because of end cap 2 is provided with.

With reference to figure 2, Fig. 3 and shown in Figure 4, the upper surface of end cap 2 has the long and narrow fitting portion 23 that tighten up to the middle part gradually at a two, accordingly, the storage inner chamber upper surface moulding of blade 1 is assembled into the caulking groove 11 of a burnishing surface for fitting portion 23, further, the bottom of end cap 2 and fitting portion 23 prolonging directions convex with two limited posts 22, accordingly, the rearward end of blade 1 has the slot 13 that plugs for limited post 22, end cap 2 convexes with the locating piece 21 that a cross section roughly takes the shape of the letter U near limited post 22, accordingly, the rearward end of blade 1 has for locating piece 21 ccontaining to realize the accurately ccontaining territory 12 of location.And the upper and lower end face of end cap 2 all forms friction line 24 and friction line 25.

Claims

1, a kind of blade storage formula cutter comprises

Blade has the storage inner chamber;

It is characterized in that also comprising

2, blade storage formula cutter according to claim 1, the upper surface that it is characterized in that described end cap has the long and narrow fitting portion that tighten up to the middle part gradually at a two, accordingly, the storage inner chamber upper surface moulding of described blade is assembled into the caulking groove of a burnishing surface for aforementioned fitting portion.

3, blade storage formula cutter according to claim 2 is characterized in that the bottom of described end cap and described fitting portion prolonging direction convex with limited post, and accordingly, the rearward end of described blade has the slot that plugs for aforesaid limited post.

4, blade storage formula cutter according to claim 3, it is characterized in that described end cap convexes with the locating piece that a cross section roughly takes the shape of the letter U near described limited post, accordingly, the rearward end of described blade has for aforementioned locating piece ccontaining to realize the accurately ccontaining territory of location.

5, according to the described blade storage of arbitrary claim in the claim 1 to 4 formula cutter, it is characterized in that described blade is provided with an inserts around the storage inner chamber, and described blade assembly telescopically is located in the storage tank of aforementioned inserts, and described Storage Box then is located in the space between aforementioned inserts and the described blade inwall.

6, blade storage formula cutter according to claim 5 is characterized in that described blade assembly comprises

Blade is used for cutting or cutting;

Blade holder fixedly installs for aforementioned blade;

Keeper flexibly is located at aforementioned push button below and also can be moved up and down in vertical breach of aforementioned knife rest, accordingly, has the clamping mouth that the restriction blade holder moves for location, keeper end on the described inserts.

7, blade storage formula cutter according to claim 6 is characterized in that described keeper flexibly is arranged at described push button below by the elastic sheet metal that is provided with this keeper below.