CN201792343U

CN201792343U - Rebound cutter

Info

Publication number: CN201792343U
Application number: CN2010201963954U
Authority: CN
Inventors: 邬岳伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-05-17
Filing date: 2010-05-17
Publication date: 2011-04-13
Anticipated expiration: 2020-05-17
Also published as: DE202011050069U1; AU2011201623A1; AU2011201623B2

Abstract

The utility model relates to a rebound cutter, which comprises an outer casing, a cutter rest, a blade, a push unit, a retracting spring and a blade replacing device. The cutter rest is slidably contained in the outer casing, the blade is mounted on the cutter rest, and one end of the retracting spring is fixed onto the cutter rest while the other end is fixed onto the inner wall of the outer casing. The push unit is provided with a push button, a push button seat, a post, a return spring and a limiting device, the push button extends out of the outer casing, the push button seat is capable of sliding along the outer casing back and forth, the post is formed on the push button seat, the return spring is arranged between the post and the cutter rest, at least one projection is formed on the push button seat, the limiting device includes an outer button and an internal limiting piece, and the internal limiting piece is detachably inserted onto the outer button. The blade of the rebound cutter can still be locked when completely extending out, consequentially, a user can lock the blade without pushing the push button with fingers all along in continuous cutting occasion with larger work load, and thereby burden of using a cutter is reduced.

Description

A kind of resilience cutter

Technical field

The utility model is relevant for a kind of resilience cutter, especially the resilience cutter that can also lock under the state that stretches out fully relevant for a kind of blade.

Background technology

Cutter is a kind of common hand-held tool, can be used for cutting such as timber, paper, leather, plastic sheet, electric wire or hardboard.Safer in order to use, but once developed the cutter of resilience.As shown in Figure 4, but tradition resilience cutter 9 has a blade 90, and blade 90 can be drawn in the cutter shell 91 under the pulling at spring after the user uses the back to discharge push button 92.But, because the user must push away push button 92 in cutting always, this cutter 9 only is suitable for the use once in a while of short time.For continuous big workload cutting, pushing away push button 92 with finger is white elephants always.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of resilience cutter, and its blade can also be locked under the state that stretches out fully.

In order to solve the problems of the technologies described above, the utility model provides a kind of resilience cutter, it comprises a shell, a tool rest that slidably is contained in the shell, a blade that is installed on the tool rest, a pushing unit, one one end are fixed on the other end on the tool rest and are fixed on withdrawing spring on the inwall of shell and a tool changing sheet device.Inwall at shell is formed with a forward recess and the guiding surface before forward recess.Tool rest has a tool rest breach, and blade has at least one blade breach.Pushing unit has one and stretches out push button outside the shell, the push button seat that can slidably reciprocate along shell, a post that is formed on the push button seat, the return spring between post and tool rest, and a stopping means.On the push button seat, be formed with at least one projection.Stopping means comprises an outer button and a removable interior locating part that is plugged on the outer button.Tool changing sheet device comprises a button and a fixture, button has pair of leg, the free end of each leg is formed with an oblique pin, fixture is by rotating being loaded on the tool rest of rotating shaft, and have the depression bar that a side stretches, a side direction tiltedly support face and the back-moving spring between fixture and tool rest.

The beneficial effect that the utility model brought is as a kind of resilience cutter, its blade can also be locked under the state that stretches out fully, like this for the workplace of the bigger continuous cutting of workload, the user can needn't push away push button with finger with the blade locking always, has reduced the use burden of cutter.

Description of drawings

Fig. 1 a is the plane of the utility model resilience cutter preferred embodiment.

Fig. 1 b is another plane of this embodiment and the basic relative direction of Fig. 1 a.

Fig. 2 is the three-dimensional explosive view of this embodiment.

Fig. 3 a is the partial plan of this embodiment.

Fig. 3 b is another plane of this embodiment and the basic relative direction of Fig. 3 a.

Fig. 4 is a kind of schematic perspective view of traditional resilience cutter.

The specific embodiment

With reference to figure 1a, 1b, and Fig. 2, it shows the preferred embodiment of a kind of resilience cutter 1 of the utility model.Cutter 1 comprises a shell 10, a tool rest 20 that slidably is contained in the shell 10, a blade 30 that is installed on the tool rest 20, the pushing unit 40 that control tool rest 20 moves forward, one one end is fixed on the other end on the tool rest 20 and is fixed on withdrawing spring 21 on the inwall of shell 10 and a tool changing sheet device 50.Shell 10 is formed by one the first half shell 11 and one the second half shell 12 knock-down fastenings.It also is as handle of a knife simultaneously that shell 10 both can hold tool rest 20.Tool rest 20 has a tool rest breach 22, and blade 30 has at least one blade breach 31.

Tool changing sheet device 50 comprises a button 51 and a fixture 52.Button 51 has pair of leg 511, this leg 511 is contained in the hole of offering on the shell 10 and can with respect to shell 10 one depressed position and one be not pressed and move around between the position.The free end of each leg 511 is formed with an oblique pin 512.Fixture 52 is by a rotating shaft 521 rotating being loaded on the tool rest 20, and has the depression bar 522 that a side stretches and the face 523 that tiltedly supports of a side direction.Depression bar 522 all be generally speaking be contained on the tool rest 20 among the tool rest breach 22 that forms and one resting on tool rest breach 22 under the compressing of the back-moving spring 524 between fixture 52 and the tool rest 20 among.

Pushing unit 40 has one and stretches out 41, one posts 43 that can be formed at along 42, one of the push button seats that shell 10 slidably reciprocates on the push button seat 42 of push button outside the shell 10, and the return spring 45 between post 43 and tool rest 20.Post 43 inserts among the tool rest 20 and can vertically slide along tool rest 20.On push button seat 42, be formed with at least one projection 421.Pushing unit 40 also has a stopping means 44, and stopping means 44 comprises one for user's outer button 441 and removable interior locating part 442 that is plugged on the outer button 441 with finger push.Stopping means 44 is contained in the groove of offering on the shell 10 and can moves around between " Lock " (locking) position on the shell 10 and " Unlock " (release) position.Can from gathering sill 23, pass can also offering the guide pin 46 that 23, one of gathering sills are installed on the post 43 on the tool rest 20.Gathering sill 23 and guide pin 46 can help post 43 to move up and down along vertical with tool rest 20 a basically straight line.Inwall at shell 10 is formed with a forward recess 13 and the guiding surface 14 before forward recess 13.

Under the usual state of resilience cutter 1, tool rest 20 is pulled to a position of returning under the effect of withdrawing spring 21.If the user wishes that blade 30 returns automatically after cutting is used, his position of outer button 441 that can move up to " Unlock ".Shown in Fig. 3 a and 3b, in this state, the user promotes push button 41 forward and releases blade 30, and a tool rest projection 24 that forms on the tool rest 20 finally will run into the interior locating part 442 of stopping means 44 and be continued to move ahead by interior locating part 442 preventions.The user just can't not promote push button 41 forward again before projection 421 also arrives groove 13 and guiding surface 14.Discharge push button 41 after the user cuts use, the blade 30 that tool rest 20 and tool rest 20 are installed above just will be return in the shell 10 under the pulling of withdrawing spring 21 automatically.

If the user wishes locking blade 30 in cutting process, he can move down the position of outer button 441 to " Lock ".In this state, the interior locating part 442 of stopping means 44 will move down, and avoid the route that tool rest projection 24 moves.Release blade 30 when the user promotes push button 41 forward, projection 421 will at first run into guiding surface 14.If the user continues to promote, projection 421 will move downward while post 43 along guiding surface 14 will begin compression retracteding position spring 45.After projection 421 is crossed guiding surface 14, it will enter forward recess 13 under the restoring force effect of compressed return spring 45 just.At this moment, tool rest 20 just is locked in this position, can not move forward and backward.Push push button 41 downwards up to the user, projection 421 breaks away from forward recess 13, and the blade 30 that tool rest 20 and tool rest 20 are installed above could be return in the shell 10 under the pulling of withdrawing spring 21 automatically.

Under the state of " Lock ", the user can more renew blade 30.The user can press the button 51, and tiltedly pin 512 will run into and begin pushing tiltedly to face 523.Fixture 52 521 is rotated against back-moving spring 524 under the promotion of oblique pin 512 around the shaft.Like this, depression bar 522 just will leave tool rest breach 22 and blade breach 31.Old blade 30 just can be extracted out from cutter 1, and a new blade 30 just can insert.After new blade 30 inserted, the user just can release-push 51, and when oblique pin 512 leaves tiltedly behind face 523, fixture 52 will be rotated under the restoring force effect of back-moving spring 524, till depression bar 612 enters tool rest breach 22 and blade breach 31.This stylish blade 30 has just installed.

Refer again to Fig. 2, can install a magnet 25 in the face of on the one side of blade 30 at tool rest 20.It is afterwards more stable that this magnet 25 can make the blade 30 of steel be contained on the tool rest 20.Shell 10 outsides of cutter 1 of the present utility model can also be provided with the grasping feel of rubbery outer cover cover 15 with the improvement person that holds the cutter.In the place ahead of push button 41 a rubber antiskid piece 16 can also be set.

Known to those skilled in the art, drawings and Examples of the present utility model are only for illustrating that function of the present utility model, structure and principle should not become the restriction in the utility model understanding; Simultaneously, the purpose of this utility model all realizes.The foregoing description may be had some change under the situation that does not break away from the utility model principle, so protection of the present utility model should be as the criterion with the scope described in claims.

Claims

1. a resilience cutter (1) is characterized in that comprising:

A shell (10) is formed with a forward recess (13) and one at forward recess (13) guiding surface (14) before at the inwall of shell (10);

A tool rest (20) that slidably is contained in the shell (10), tool rest (20) has a tool rest breach (22);

A blade (30) that is installed on the tool rest (20), blade (30) has at least one blade breach (31);

A pushing unit (40), pushing unit (40) has one and stretches out push button (41) outside the shell (10), the push button seat (42) that can slidably reciprocate along shell (10), a post (43) that is formed on the push button seat (42),, the return spring (45) between post (43) and tool rest (20), an and stopping means (44), be formed with at least one projection (421) on push button seat (42), stopping means (44) comprises an outer button (441) and a removable interior locating part (442) that is plugged on the outer button (441);

One one end is fixed on the other end on the tool rest (20) and is fixed on withdrawing spring (21) on the inwall of shell (10); And,

A tool changing sheet device (50), tool changing sheet device (50) comprises a button (51) and a fixture (52), button (51) has pair of leg (511), the free end of each leg (511) is formed with an oblique pin (512), fixture (52) is loaded on the tool rest (20) by a rotating shaft (521) is rotating, and have the depression bar (522) that a side stretches, a side direction tiltedly support face (523) and the back-moving spring (524) between fixture (52) and tool rest (20).

2. cutter as claimed in claim 1 (1) is characterized in that described shell (10) is formed by one the first half shell (11) and one the second half knock-down fastenings of shell (12).

3. resilience cutter as claimed in claim 1 (1) is characterized in that offering on the tool rest (20) gathering sill (23), and a guide pin (46) that is installed on the post (43) passes from gathering sill (23).

4. cutter as claimed in claim 1 (1) is characterized in that being equiped with a magnet (25) at tool rest (20) in the face of on the one side of blade (30).

5. cutter as claimed in claim 1 (1) is characterized in that being provided with a rubbery outer cover cover (15) in shell (10) outside of cutter (1).

6. cutter as claimed in claim 1 (1) is characterized in that in the place ahead of push button (41) a rubber antiskid piece (16) being set.