CN202200311U - Utility knife - Google Patents

Utility knife Download PDF

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Publication number
CN202200311U
CN202200311U CN2011202425845U CN201120242584U CN202200311U CN 202200311 U CN202200311 U CN 202200311U CN 2011202425845 U CN2011202425845 U CN 2011202425845U CN 201120242584 U CN201120242584 U CN 201120242584U CN 202200311 U CN202200311 U CN 202200311U
Authority
CN
China
Prior art keywords
button
blade
stopper slot
cutter
locking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011202425845U
Other languages
Chinese (zh)
Inventor
娄甫安
Original Assignee
娄甫君
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 娄甫君 filed Critical 娄甫君
Priority to CN2011202425845U priority Critical patent/CN202200311U/en
Application granted granted Critical
Publication of CN202200311U publication Critical patent/CN202200311U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a utility knife, comprising a knife shell, a blade and a blade moving and locking mechanism, wherein the knife shell is provided with a spout; the blade moving and locking mechanism is arranged between the blade and the spout; the two sides of the spout are provided with square limiting grooves; the blade moving and locking mechanism comprises a press-button, a push-down body and a limiting piece, wherein the tail of the press-button is provided with a press-button manual pressing part; the back face of the press-button manual pressing part is provided with an elastic piece limiting rib, and middle thereof is provided with a press-button axle sleeve and front part thereof is provided with a press-button limiting strip similar with the square limiting groove; the head of the push-down body is provided with a blade positioning column, and middle thereof is provided with a fixed shaft and tail part thereof is provided with an elastic piece limiting groove; the press-button is fixed with the push-down body through the press-button axle sleeve and the fixed shaft of the push-down body; an elastic piece is installed between the press-button elastic piece limiting rib and the elastic piece limiting groove of the push-down body; the blade is fixed on the fixed column of the push-down body through a fixing hole. Because of the big locking surface and locking force, accidents and injures caused by loose locking of the blade can not occur easily. The utility model is characterized by a long service life and simple assembling.

Description

Cutter
Technical field
The utility model relates to cutter.
Background technology
Cutter is as the articles for daily use that cut paper; Be widely used, structure is varied, comprises blade, cutter shell as the one of which and blade moves and locking mechanism; Blade places the cutter shell and is moved and locking mechanism mobile and locking at the cutter shell by blade; When needs use, move with the locking mechanism moving blade through blade blade is shifted out the cutter shell, utilize the blade that exposes cutter shell part to cut; But after finishing using, move with locking mechanism through blade again blade is moved in the cutter shell, avoid producing unexpected injury because of blade exposes the cutter shell.Because exposing to the blade lengths of cutter shell often need regulate to satisfy the different needs that cut; Therefore blade move with locking mechanism frequently promote blade mutually the tool setting shell move forward and backward; And when using; Blade moves with locking mechanism and needs the secure lock blade, prevents that blade from moving the generation adverse consequences with respect to the cutter shell, even produces unexpected injury.For this reason, blade moves with being provided with of locking mechanism very crucial.
The disclosed a kind of self-locking type cutter of Chinese patent document CN2576502Y has a chute in the cutter shell, a lateral margin of chute is formed with relative continuous ratchet; One tool rest is housed in the chute, and the surface of tool rest has a push button, and the rear portion of tool rest has a groove; The top of groove is provided with a retaining mechanism, and the two ends upside of retaining mechanism has a convexity respectively, and two protruding clips are on the ratchet of cutter shell; The two ends downside of retaining mechanism is respectively equipped with a brake block again; The centre of groove is provided with a guide groove, and the two ends of groove are respectively equipped with a flexible block, and the push button bottom is provided with an I-shaped guide rail; I-shaped guide rail is embedded in the guide groove of tool rest, and the two ends of the I-shaped guide rail brake block with retaining mechanism two ends downside respectively are corresponding.The blade that above-mentioned push button and retaining mechanism have constituted cutter moves and locking mechanism; Cutter through blade move with locking mechanism in push button in I-shaped guide rail prop up the brake block in the retaining mechanism; Convexity in the retaining mechanism is stuck on the ratchet in the cutter shell and makes the locking of blade phase tool setting shell; When needing promotion blade phase tool setting shell to move; Promote push button, push button overcomes the flexible block on the tool rest and removes the effect that is tight against to brake block in the retaining mechanism, thereby makes the convexity in the retaining mechanism break away from the ratchet in the cutter shell and blade phase tool setting shell is moved freely.Above-mentioned cutter needs to rely on the elastic force of brake block that brake block is moved around, so easy damage brake block and I-shaped guide rail because it adopts I-shaped guide rail and brake block to lock and moving blade.And, the entire mechanism more complicated, loading and unloading are inconvenient.
Summary of the invention
The utility model technical problem to be solved is for the above-mentioned deficiency that overcomes prior art a kind of cutter to be provided, and makes it simple in structure, and insert retention is reliable more and the cutter life-span is long.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: cutter; Comprise that cutter shell, blade and blade move and locking mechanism; On the described cutter shell chute is set; Be provided with between blade and chute that blade moves and locking mechanism, it is characterized in that: described chute two sides are provided with square stopper slot; Described blade moves with locking mechanism and comprises button, pushes away body and flexure strip down; The button afterbody is provided with the button hand by the position; The button hand is provided with the spacing muscle of flexure strip by the back side, position, and the centre is provided with the button axle sleeve, the anterior setting button positive stop strip consistent with square stopper slot; Under push away the body head blade reference column be set; The middle part is provided with fixed axis; Afterbody is provided with the flexure strip stopper slot, button through button axle sleeve and the fixed axis that pushes away down body with button with under push away body and be fixed together, the spacing muscle of button flexure strip and under push away flexure strip be installed between the body elasticity sheet stopper slot; Blade is fixed on down on the fixed leg that pushes away body through fixing hole.
During normal condition, button slips in the square stopper slot on the cutter shell positive stop strip of button through the elastic force of flexure strip, limits the axially-movable between button and cutter shell.Since blade with down push away body and button closely connects together, do not have axial mobile possible, thereby can let blade stablize self-locking.
When wanting moving blade; Finger is pinned button hand on the button by the position; The button hand is that fulcrum upwarps button head and the button positive stop strip is left the square stopper slot on the cutter shell by the position with middle axle sleeve, thereby removes blade and the locking that pushes away body down, promotes button and drives blade and on the cutter shell, move.When blade moves on to correct position, decontrol the button hand by the position, button is under the elastic force effect of flexure strip, and the button positive stop strip buckles in the stopper slot on the cutter shell again, the locking blade.
Compared with prior art; The advantage of the utility model is: 1, owing in chute two sides corresponding positive stop strip in square stopper slot and the button is set; Square stopper slot and the positive stop strip contact-making surface between the two is big; It is convenient to fasten, and sealed big with latching force, therefore is not prone to because of blade sealed not firm produce accident and injury.
2, during movable button, whole move with locking mechanism in do not have parts to need perseveration, therefore can not produce excessive resistance, can repeatedly not be out of shape and recover, so that blade moved with the locking mechanism life-span is long yet.
When 3, making cutter, directly button is snapped in down in the fixed axis that pushes away body, therefore assembling is simple.
Description of drawings
Fig. 1 is the exploded view of the utility model embodiment.
Fig. 2 is the utility model embodiment blade and the following combination sketch map that pushes away body.
Fig. 3 is the structural representation of the utility model embodiment button.
Structural representation when Fig. 4 is the utility model embodiment lock-out state.
Structural representation when Fig. 5 is the utility model embodiment released state.
Reference numeral is following: 1: cutter shell 11: cutter shell stopper slot 12: chute 13: blade holding tank 2: blade 21: blade fixing hole 3: button 31: the button hand is by position 32: the spacing muscle 33 of button: button axle sleeve 34: the spacing muscle 35 of spring leaf: button positioning boss 4: push away body 41 down: blade reference column 42: fixed axis 43: blade limiting stand 44: spring leaf stopper slot 45: fixedly axle bed 5: spring leaf 51: the spring leaf flange.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, cutter comprises cutter shell 1, blade 2, button 3, pushes away body 4 and spring leaf 5 down.
Establish shifting chute 12 in the middle of the cutter shell 1, shifting chute 12 2 sides are provided with square stopper slot 11, and the blade holding tank 13 that holds blade 2 also is set in the middle of the cutter shell.
Button 3 front portions are provided with button positive stop strip 32, and the centre is provided with button axle sleeve 33, and the rear portion is provided with the spacing muscle 34 of spring leaf, sees Fig. 3.
Above-mentioned spacing muscle 34 is preferably positive stop strip, and positive stop strip also can be several, like this can be spacing better.
As shown in Figure 2, pushing away body 4 front ends is provided with blade reference column 41 down, and the centre is provided with fixed axis 42, and the rear portion is provided with spring leaf stopper slot 44.
Above-mentioned button 3 snaps in down through button axle sleeve 33 to be fixed on down on the fixed axis 42 that pushes away body 4 and pushes away on the body 4.Button 3 with under push away body 4 and cooperate with button axle sleeve 33 through fixed axis 42, using two parts can be that rotate in the center of circle with the center of rotating shaft, but can not carry out horizontal moving.
Cooperating also between the button axle sleeve 33 of above-mentioned button 3 and the fixed axis 42 that pushes away down body 4 can be by the opposite way setting, as establishing fixed axis on the button, pushing away and establish axle sleeve on the body down, also can serve the same role.
Spacing muscle 34 of spring leaf on above-mentioned button 3 and the following spring leaf 5 of packing between the spring leaf stopper slot 44 on the body 4 that pushes away.Being provided with of spring leaf 5 increased the power that button 3 pins blades 2, so cutter can be stablized and safety when using more.
Blade 2 one ends are provided with blade fixing hole 21.During installation, in the blade holding tank 13 of the centre of blade 2 insertion cutter shells 1.Blade 2 is installed to down on the reference column 41 that pushes away body 4 front ends through the fixing hole 21 of its rear end, and by blade limiting stand 43 that blade 2 is spacing, sees Fig. 4.
As shown in Figure 5, when moving blade,, the spacing muscle 32 of button is separated with stopper slot 11 on the cutter shell as long as finger is pinned button hand on the button 3 by position 31, can realize blade 2 and to push away body 4 down mobile on cutter shell 1 with button 3 integral body.Decontrol when moving on to correct position and pin the finger of button hand by position 31, button 3 is under the elastic force effect of spring leaf 5, and the spacing muscle 32 of button slips in the stopper slot 11 on the cutter shell 1 again, locking blade 2.
Above-mentioned button 3 also is provided with button positioning boss 35 in button axle sleeve 33 the place aheads, accordingly under push away body 4 relevant positions fixedly axle bed 45 be set, when 3 pot life of button position muscle 32 buckled into square stopper slot 11, positioning boss 35 propped up fixedly axle bed 45.When using cutter, the setback force on the blade 2 can be eliminated with fixing axle bed 45 through button positioning boss 35 better, so the blade locking is better, nor damages button easily.
In the middle of the above-mentioned button axle sleeve 33 projection 331 is set also; Correspondingly in the middle of the fixed axis 42 groove 421 is set, projection 331 is inserted in the groove 421, can limit button 3 and following push jack 4 so better; Button 3 more be difficult under push away the body 4, see Fig. 1, Fig. 3 and Fig. 4.
Above-mentioned spring leaf 5 two ends are provided with spring leaf flange 51; In spacing muscle 34 of spring leaf and the spring leaf stopper slot 44 stopper slot is set; The spring leaf flange 51 of two ends buckles in the stopper slot 441 of stopper slot 341 and spring leaf stopper slot 44 of the spacing muscle 34 of spring leaf; Make spring leaf 5 be installed in better between spacing muscle 34 of above-mentioned spring leaf and the spring leaf stopper slot 44, the back of packing into just can not break away from, and sees Fig. 3, Fig. 4 and Fig. 5.

Claims (5)

1. cutter comprises that cutter shell, blade and blade move and locking mechanism, on the described cutter shell chute is set, and is provided with between blade and chute that blade moves and locking mechanism, and it is characterized in that: described chute two sides are provided with square stopper slot; Described blade moves with locking mechanism and comprises button, pushes away body and flexure strip down; The button afterbody is provided with the button hand by the position; The button hand is provided with the spacing muscle of flexure strip by the back side, position, and the centre is provided with the button axle sleeve, the anterior setting button positive stop strip consistent with square stopper slot; Under push away the body head blade reference column be set; The middle part is provided with fixed axis; Afterbody is provided with the flexure strip stopper slot, button through button axle sleeve and the fixed axis that pushes away down body with button with under push away body and be fixed together, the spacing muscle of button flexure strip and under push away flexure strip be installed between the body elasticity sheet stopper slot; Blade is fixed on down on the fixed leg that pushes away body through fixing hole.
2. cutter according to claim 1; It is characterized in that: said button is provided with the button positioning boss in button axle sleeve the place ahead; Accordingly under push away the body relevant position fixedly axle bed be set, when the button pot life, the position muscle buckled into square stopper slot, positioning boss propped up fixedly axle bed.
3. cutter according to claim 1 and 2; It is characterized in that: said spring leaf two ends are provided with the spring leaf flange; In spacing muscle of spring leaf and the spring leaf stopper slot stopper slot is set, the spring leaf flange of two ends buckles in the stopper slot of stopper slot and spring leaf stopper slot of the spacing muscle of spring leaf.
4. cutter according to claim 1 and 2 is characterized in that: a projection is set in the middle of the said button axle sleeve, a groove correspondingly is set in the middle of the fixed axis, projection is inserted in the groove.
5. cutter according to claim 3 is characterized in that: a projection is set in the middle of the said button axle sleeve, a groove correspondingly is set in the middle of the fixed axis, projection is inserted in the groove.
CN2011202425845U 2011-07-11 2011-07-11 Utility knife Expired - Fee Related CN202200311U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202425845U CN202200311U (en) 2011-07-11 2011-07-11 Utility knife

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202425845U CN202200311U (en) 2011-07-11 2011-07-11 Utility knife

Publications (1)

Publication Number Publication Date
CN202200311U true CN202200311U (en) 2012-04-25

Family

ID=45964448

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011202425845U Expired - Fee Related CN202200311U (en) 2011-07-11 2011-07-11 Utility knife

Country Status (1)

Country Link
CN (1) CN202200311U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102975209A (en) * 2012-11-09 2013-03-20 顺德工业(江苏)有限公司 Art designing knife regulator
CN105527118A (en) * 2015-12-16 2016-04-27 西安科技大学 High-efficiency adjustable type saw blade for loose sandstone on-site sampling

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102975209A (en) * 2012-11-09 2013-03-20 顺德工业(江苏)有限公司 Art designing knife regulator
CN105527118A (en) * 2015-12-16 2016-04-27 西安科技大学 High-efficiency adjustable type saw blade for loose sandstone on-site sampling

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120425

Termination date: 20200711

CF01 Termination of patent right due to non-payment of annual fee