JP2001259263A - Scissors - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide scissors capable of easily performing the operation of switching the location of a cover body. SOLUTION: A first scissors piece 11 comprised of a first blade part 14 and first handle part 15 is connected to a second scissors piece 12 comprised of a second blade part 16 and second handle part 17 by a connecting pin 13 in such a way that the first and second scissors pieces 11 and 12 can be opened and closed. An engaging protrusion 18c provided for the cover body 18 is slidably engaged with an engaging groove 15b provided for the first handle part 15. When the cover body 18 is in a state of being at a locked location, the blade edges of both blade parts 14 and 16 are shielded by a shielding part 18i, and a fastening protrusion 18j is fastened to the fastening multileveled part 19b of a fixed cover part 19 to lock both scissors pieces 11 and 12 in such a way that they can not be opened. When the cover body 18 is in a state of being at an unlocked location, the blade edges of both blade parts 14 and 16 are released from shielding, and the fastening protrusion 18j is moved to the unlocked location together with the cover body 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to scissors, and more particularly, to scissors capable of enhancing safety when not in use.

[0002]

2. Description of the Related Art A pair of scissors includes a first scissor piece having a lower blade and an upper handle, and a second scissor piece having the same upper blade and a lower handle. It is configured. In order to improve the safety of the scissors when not in use, a cover body is attached.

[0003] As the above cover, a patent publication (26th edition)
No. 57636) has scissors in which a cover body is pivotally attached to one scissor piece so as to be openable and closable, and a cover body turned to a shielding position of a blade portion is advanced and retracted in the front-rear direction so that a lock position and an unlock position can be set. There have been proposed scissors that switch between the two.

In Japanese Utility Model Laid-Open Publication No. 3-76560, scissors in which a cover body is rotatably mounted on a shaft attachment portion of both scissors pieces is proposed.

[0005]

However, in each of the scissors, when the cover is switched from the locked position to the unlocked position, the cover is largely displaced from the blade to which the cover is attached. Not only is the operation of switching the position of the scissors troublesome, but also there is a problem that the cover body gets in the way while using the scissors.

In each conventional scissors, the ratio of the advance / retreat distance of the cover to the total length is set to 50 to 100%. When the total length of the scissors is 12 cm, for example, it is necessary to move the cover by 6 cm. Yes, the switching operation was troublesome.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems in the prior art, to facilitate the operation of switching the position of the cover, and to prevent the cover from being obstructed during use. It is to provide scissors that can do.

[0008]

In order to solve the above-mentioned problems, the invention according to claim 1 is directed to a first scissor piece comprising a lower blade portion and an upper handle portion, and an upper blade portion. In the scissors in which a second scissor piece having a lower handle portion is pivotally mounted on an openable and closable manner, a cover body is provided with respect to the first scissor piece or the second scissor piece in a locked position and an unlocked position of both scissors. Attached so that it can move between,
When the cover is in the locked position, the blades of the two blades are shielded, and a lock member provided on the cover engages with the other scissor piece to lock both scissor pieces in a closed state. In the state where is in the unlocking position, the shielding of the cutting edges of both blade portions is released, the locking member is detached from the other scissor piece to be in the unlocked state, and the advance / retreat range of the cover body is set to a short distance by one-touch operation. The gist is that it has been done.

According to a second aspect of the present invention, in the first aspect, the advance / retreat distance dimension of the cover body is set to 1 to 30% of the full length dimension of the scissors. According to a third aspect of the present invention, in the first or second aspect, an engaging groove is formed at a base end of a handle portion of the first scissor piece or the second scissor piece, and a cover is provided in the engaging groove. The gist is that the engaging projection provided on the body is reciprocally slidably engaged so that the reciprocating sliding moves the cover body forward and backward.

According to a fourth aspect of the present invention, in the third aspect, the engaging groove is formed in a narrow portion on the outer surface side of the handle, and is formed in a wide portion on the inner surface side. The mating projection is constituted by a shaft portion guided and moved along the narrow portion, and a flange portion guided and moved along the wide portion, and the shaft portion and the flange portion are elastically deformed at the intermediate portion to reduce the diameter. The point is that it is divided by a slit as much as possible.

According to a fifth aspect of the present invention, in the third aspect, a plurality of latches for locking the cover at a locked position or an unlocked position are provided on the base end of the handle and the inner surface of the cover. The gist is that a concave portion and a locking projection are formed.

[0012] According to a sixth aspect of the present invention, in the third aspect, the engagement groove is provided so as to be inclined so as to be lower toward the tip end side of the blade portion. According to a seventh aspect of the present invention, in the first aspect, the cover body covers the outer surface of the blade portion of one scissor piece, and is 1 to 30 degrees between the lock position and the unlock position. A lock member is provided between the cover body and the other scissor piece so as to lock both scissor pieces while the cover body is moved to the lock position. Is the gist.

According to an eighth aspect of the present invention, in the seventh aspect, the locking member for locking the scissors is formed by a locking projection formed on the main body of the cover body and a locking step formed on the scissors. The gist is that it is configured.

According to a ninth aspect of the present invention, in the first aspect, the cover body is locally located at a position near the tip of the blade portion of one of the scissor pieces, and is unlocked from the lock position. The gist is that it is mounted so as to be capable of reciprocating sliding with the lock position.

According to a tenth aspect of the present invention, in the ninth aspect, the cover body is formed by joining a first cover piece and a second cover piece so as to shield the front end portions of the two blades. The cover piece has a slide support portion that guides and moves along a slide groove formed at the tip of one blade portion, and a positioning protrusion that locks the slide support portion at a lock position or an unlock position is provided in the slide groove. It is assumed that it is provided.

According to an eleventh aspect of the present invention, in the first aspect, the cover body is locally located at a position close to the tip of the blade portion of one of the scissor pieces, and is unlocked from the lock position. The gist is that it is mounted so as to be capable of reciprocating rotation with respect to a lock position.

According to a twelfth aspect of the present invention, in the eleventh aspect, the cover body is formed by joining a first cover piece and a second cover piece so as to shield the front ends of the two blades.
The one cover piece includes a rotation support pin rotatably fitted into a support hole formed at the tip of the one blade, and a locking protrusion provided on the rotation support pin is locked in the support hole. The gist is that a plurality of locking grooves for locking at the position or the unlock position are provided.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the scissors of the present invention will be described below with reference to FIGS.

As shown in FIGS. 5 and 6, the first scissor piece 11 and the second scissor piece 12 constituting the scissors are connected by a connecting pin 13 as an axis so as to be openable and closable. As shown in FIGS. 1 to 3, the first scissors piece 11 includes a lower blade portion 14,
A first handle portion 15 made of synthetic resin is formed on the base end of the blade portion 14 by an insert molding die. The second scissors piece 12 includes an upper blade portion 16 and a second handle portion 17 made of synthetic resin, which is also formed on the base end of the blade portion 16 by an insert molding die.

Next, the lock structure of the first scissor piece 11 and the first handle 15 will be described. As shown in FIGS. 1 to 3, a cover 18 is attached to the first handle 15 of the first scissors piece 11 so as to cover the outer surface of the lower blade 14. An engagement groove 15b is formed through the base end portion 15a of the first handle portion 15 so as to be inclined downward toward the distal end side of the blade portion 14. The engagement groove 15b is formed by a narrow portion 15c on the outer surface side of the handle 15 and a wide portion 15d on the inner surface side.

A thin portion 18b is integrally formed at the base end of the main body 18a of the cover body 18 in correspondence with the base end 15a of the first handle portion 15, and is formed on the inner surface of the thin portion 18b. Is formed integrally with an engagement projection 18c to be engaged with the engagement groove 15b. The engaging projection 18c is connected to the shaft 18d guided and moved along the narrow portion 15c and the wide portion 1
And a flange 18e guided and moved along 5d. The shaft portion 18d and the flange portion 18e are elastically deformed at the center portion and are divided into left and right by a slit 18f so as to reduce the diameter.
Pushing toward b enables the engagement.

In this embodiment, the length of the engaging groove 15b, that is, the sliding length of the cover body 18 is 15 m.
m. It is desirable that the distance of the cover 18 be arbitrarily set within a range of 3 to 30 mm. The ratio of the forward / backward distance dimension of the cover body 18 to the full length dimension of the scissors is in the range of 1 to 30%, preferably 3 to 15%.
Set to%.

A guide slope 15e is formed at the base end 15a of the first handle 15 so as to be parallel to the engagement groove 15b and close to the connection pin 13. The guide slope 15
e, a main body portion 18a of the cover body 18 and a thin portion 18
A step 18g formed so as to be inclined at the boundary of b is slidably contacted.

A locking projection 18h is formed integrally with the step 18g of the cover body 18. The locking projection 18h
Corresponding to the above, locking recesses 15f and 15g are formed at two places on the guide slope 15e of the first handle portion 15.
When the engagement projection 18c is engaged with the engagement groove 15b, a predetermined resistance is applied when the engagement projection 18h is pulled out of the engagement recess 15f or 15g. Therefore, the locking projection 18h is connected to one of the locking recesses 15f.
, The cover body 18 is stably locked at a lock position described later, and is locked at the unlock position by being locked at the other locking recess 15g.

At the tip of the main body 18a of the cover 18, a shield 18i for shielding the tips of the two blades 14, 16 is integrally formed. A fixed cover 19 made of synthetic resin is integrally formed on the second handle 17 of the second scissors piece 12 so as to cover the outer surface of the blade 16 when the second handle 17 is molded. A locking step 19a is formed at the distal end of the fixed cover 19, and the shielding portion 18i is engaged with the locking step 19a to shield the two blades 14 and 16 so as to wrap around the distal ends. .

A locking projection 18j as a locking member is integrally formed on the inner surface of the main body 18a of the cover body 18 near the step 18g. This locking projection 18
As shown in FIG. 6, j is locked by a locking step 19b formed on the lower edge (upper edge in FIG. 4) of the fixed cover portion 19, whereby both scissors pieces 11, 12 cannot be opened. Held in the locked position.

On the inner surface of the main body 18a of the cover body 18, a recess 18k into which the end of the connecting pin 13 enters is formed. A finger slip prevention projection 181 is formed on the outer surface of the thin portion 18b, and a shallow recess 18m for design is formed on the outer surface of the main body 18a.

Next, regarding the scissors constructed as described above,
The operation will be described. FIG. 1 shows a state in which the cover body 18 is in the unlock position and scissors can be used. In this state, the upper edge of the main body 18a is located slightly below the upper edge of the blade 14, so that the blades 14, 16 can cut paper or the like.

After the cutting operation, the scissors are closed as shown in FIG.
When the finger is brought into contact with 8l and the anti-slip projection 18l is pushed obliquely upward and to the right, the engaging projection 18c is slid obliquely upward and to the right along the engaging groove 15b, and a step 18g is formed along the guide slope 15e. Is guided. At this time, the locking projection 18h
Is locked to the locking recess 15f located above and separated from the locking recess 15g located below. In this state, the shielding unit 1
8i shields the distal ends of the blades 14 and 16, and the locking projection 18j is locked by the locking step 19b of the fixed cover 19 as shown in FIG. 6, so that both scissors pieces 11 and 12 cannot be opened. Lock position.

Next, regarding the scissors configured as described above,
The effects are listed together with the configuration. (1) In the embodiment, the base end 15a of the first handle 15
An inclined engagement groove 15b is provided, and the engagement protrusion 18c of the cover body 18 is engaged with the engagement groove 15b so that the step 18g of the cover body 18 contacts the guide slope 15e of the first handle 15. I made it. For this reason, the stroke length of the operation of switching the cover body 18 between the lock position and the unlock position can be shortened and quickly switched, and the cover body 18 at the unlock position does not become an obstacle during the cutting operation. .

(2) In the above-described embodiment, the shaft portion 18d that guides and moves the engaging projection 18c of the cover body along the narrow portion 15c and the flange portion 1 that guides and moves along the wide portion 15d.
The shaft portion 18d and the flange portion 18e are elastically deformed in the intermediate portion and are divided into left and right portions by a slit 18f so as to reduce the diameter. Therefore, the operation of engaging the engagement protrusion 18c with the engagement groove 15b can be easily performed by the pushing operation.

(3) In the above embodiment, the locking projection 18h of the cover 18 is locked to one of the two locking recesses 15f and 15g formed on the base end 15a of the first handle 15. The cover 1 has a simple structure.
8 can be stably locked at the lock position or the unlock position.

(4) In the above embodiment, the shielding portion 18i which can shield only the distal end portions of the blade portions 14 and 16 is integrally formed at the distal end portion of the main body portion 18a of the cover body 18. 14 and 16 cutting edges can be efficiently shielded.

(5) In the above-described embodiment, the locking projection 18j is integrally formed on the main body 18a of the cover body 18, and the locking projection 18j is integrally formed on the second handle portion 17. Since the scissors are locked to the stop 19b, the structure of the locking members for both scissors can be simplified.

Next, a second embodiment of the present invention will be described with reference to FIGS. In the second and subsequent embodiments, members having the same functions as those of the first embodiment are denoted by the same reference numerals, and description thereof will be simplified.

In this embodiment, a shaft cylinder 15h is formed integrally with the base end 15a of the first handle 15. A ring portion 18n integrally formed on the base end portion of the cover body 18 is fitted to the outer periphery of the shaft tube portion 15h so as to be switchable between a locked position and an unlocked position within a predetermined angle range. . A projection 15i is integrally formed on the outer periphery of the shaft cylinder portion 15h, and the projection 15i is formed in a concave portion 18p formed by cutting out an inner peripheral surface 18o of the ring portion 18n.
Are loosely engaged. The rotation range of the cover body 18 is set in a range of 1 to 30 degrees, preferably in a range of 3 to 15 degrees.

A connecting pin 21 is fitted and adhered to the inner peripheral surface 15j of the shaft cylinder 15h so as to prevent the ring 18n from being detached. A locking projection 15k is integrally formed on the outer surface of the base end 15a so as to be close to the shaft cylinder 15h. Locking recesses 18q and 18r are formed on the inner side surface of the ring portion 18n so as to correspond to the locking protrusions 15k. Is stably locked at the lock position. On the contrary, the locking projection 15k is locked to the other locking recess 18r, so that the cover body 18 is stably locked to the unlock position.

FIG. 7A shows a state in which the cover 18 is held at the lock position. In this state, as shown in FIG.
The pair of scissors pieces 11 and 12 are held at a lock position where the scissors pieces 11 and 12 cannot be opened.

In this state, when the cover 18 is rotated counterclockwise as shown by an arrow in FIG. 7A, the cover 18 is switched to the unlock position as shown in FIG. 7C. The locking projection 18j of the cover body 18 is separated from the locking step 19b of the fixed cover 19, and scissors can be used.

Next, the effects of the second embodiment will be listed together with the configuration. (1) In the second embodiment, the cover 18 is attached to the shaft cylinder 15h.
The cover body 1 is connected so that it can rotate around a small area around
The switching operation between the locked position and the unlocked position of 8 can be easily performed, and the cover body 18 at the unlocked position does not interfere with the use of the scissors.

(2) In the second embodiment, since the cover body 18 is disposed so as to cover the outside of the first blade portion 14 even in the unlocked position, the safety in the use state of the scissors can be improved. .

Next, a third embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. In the third embodiment, as shown in FIG. 10A, a miniaturized cover body 18 is attached to the distal ends of the blades 14 and 16. As shown in FIG. 11, a slide groove 14a for guiding and moving the cover body 18 is formed at the distal end of the blade portion 14 so as to be inclined downward toward the distal end. A plurality of positioning projections 14b and 14c are formed in the slide groove 14a.

The cover body 18 is formed by joining a molded first cover piece 22 made of synthetic resin and a similarly molded second cover piece 23 made of synthetic resin. The first cover piece 22 has a flat plate portion 22a slidably in contact with the outer surface of the blade portion 16, a shielding portion 22b integrally bent at a front edge and a lower edge thereof, and a plurality of integrated portions with the shielding portion 22b. The locking pin 22c is formed. The second cover piece 23 has a flat plate portion 23a slidably in contact with the outer surface of the blade portion 14, a shielding portion 23b integrally bent at a front edge and a lower edge thereof, and a plurality of portions with respect to the shielding portion 23b. The locking hole 23c is formed. The first cover piece 22 and the second cover piece 23 are connected to each other by press-fitting the locking pin 22c of the first cover piece 22 into each of the locking holes 23c of the second cover piece 23. The shielding portion 18i is formed in the portion. Note that the first cover piece 22 and the second cover piece 23 may be bonded by an adhesive instead of the press-fitting and locking.

A slide support portion 23d to be fitted into the slide groove 14a is integrally formed on the inner surface of the flat plate portion 23a of the second cover piece 23. The slide support portion 23d is divided into a pair of semi-elliptical columnar portions 23e so as to be elastically deformable by slits 23f. After the slide support portion 23d of the second cover piece 23 is fitted into the slide groove 14a, the first cover piece 22 is joined to the second cover piece 23.

Next, the operation of the scissors of the third embodiment will be described. The solid line in FIG. 12 shows a state in which the cover body 18 is in the unlock position and both scissors pieces can be opened and closed. In this state, the slide support portion 23d is positioned on the positioning protrusion 14c.
, The cover body 18 is stably locked at the unlock position. In this state, the cover 18
Is pushed obliquely rightward and upward, the semi-elliptical columnar portion 23e of the slide support portion 23d is elastically deformed by the positioning protrusion 14c, gets over the positioning protrusion 14c, and gets over another positioning protrusion 14b located further above, and locks. Switch to position. In this state, the shielding unit 1
Since the shield 8i covers the distal ends of the blades 14 and 16, the opening 18i of the scissors 11 and 12 prevents the blades 14 and 16 from being opened by the shield 18i itself and is held at the lock position.

Next, the effects of the third embodiment will be listed together with the configuration. (1) In the third embodiment, since the cover body 18 is attached only to the distal end portions of the blade portions 14 and 16, the switching operation between the locked position and the unlocked position of the cover body 18 can be easily performed, and the unlocking operation can be performed. Cover body 18 in lock position
However, they do not get in the way while using the scissors, further reducing material costs.

(2) In the third embodiment, since the shielding portion 18i of the cover 18 also serves as a member for locking both scissors, the structure can be simplified, and the manufacturing and assembling operations can be easily performed.

Next, a fourth embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. In the fourth embodiment, a rotation support structure is employed instead of the structure of the third embodiment in which the cover body 18 is slidably supported. A support hole 14d is formed at the tip of the blade portion 14, and two locking grooves 14e and 14f are formed on the inner peripheral surface thereof. Second cover piece 23
A rotation support pin 23g is formed integrally with the flat plate portion 23a. The rotation support pin 23g is divided into a pair of semi-cylindrical portions 23h by slits 23i. On the outer periphery of one semi-cylindrical portion 23h, a locking ridge 23j locked with the locking groove 14e or the locking groove 14f is integrally formed.

FIG. 15 shows a state in which the cover 18 is held at the lock position. In this state, the locking ridge 23j is locked in one locking groove 14f, and the shielding portion 18i is locked.
Shields the tips of both blades 14 and 16 and both scissors pieces 11 and 1
2 is prevented from opening and closing. In this locked position,
When the cover body 18 is rotated counterclockwise about the rotation support pin 23g, the shielding portion 18i is separated from the distal ends of the blade portions 14, 16, the cover body 18 is switched to the unlock position, and the scissors Can be opened and closed.

Next, the effect of the scissors of the fourth embodiment will be described together with the structure. (1) In the fourth embodiment, since the cover body 18 is rotatably mounted only on the distal ends of the blade parts 14 and 16, the cover body 1
8, the switching operation between the lock position and the unlock position can be easily performed, and the material cost can be reduced.

(2) In the fourth embodiment, the cover 18 is reciprocated in a range of approximately 90 degrees. However, since the cover 18 itself is miniaturized, its stroke length is reduced. , The switching operation between the locked position and the unlocked position can be performed quickly, and the cover body 18 at the unlocked position does not interfere with the use of the scissors.

(3) In the fourth embodiment, since the shielding portion 18i of the cover 18 also serves as a member for locking both scissors, the structure is simplified, and the manufacturing and assembling operations can be easily performed.

Next, a fifth embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. In the fifth embodiment, as shown in FIG. 16, a locking recess 14g is formed on the lower side of the blade portion 14, and the locking recess 14g is formed on the lower edge of the first handle portion 15 in correspondence with the locking recess 14g. A recess 15l is formed. Then, as shown in FIG. 17, the locking projections 18j formed on the lower inner side surface of the cover body 18 are fitted to the locking recesses 14g, 15g.
l. The locking recess 15
f and 15g are formed near the right side of the engagement groove 15b.

In the scissors of the fifth embodiment, since the locking projections 18j are engaged with the locking recesses 14g and 151 in the locked state, the locked state of the first scissor piece 11 and the second scissor piece 12 is ensured. Can be held.

Each of the above embodiments can be modified and embodied as follows. Although not shown, the first scissor piece 11 and the second scissor piece 12 may be embodied as scissors integrally formed of a metal material.

Although not shown, in the first embodiment, instead of the locking projection 18j, a locking locking projection is provided on the shielding portion 18i, and this locking projection is used as the cutting edge of the second blade portion 16. May be locked in the locking recess formed in the groove.
Also, the locking projections 18j and the locking step portions 19b are omitted, and the two blade portions 14, 16 are locked by the shielding portion 18i in a state where the tip portions of the blade portions 14 and 16 are shielded by the shielding portion 18i. May be. The shielding state of the shielding portion 18i may be such that the distal ends of the two blades 14 and 16 are pressed into the shielding portion 18i, but a slight gap may be formed.

Although not shown, the engagement groove 15b may be formed in parallel with the first blade portion 14 or in an arc shape. Although not shown, the cover body 18 may be attached to the second scissors piece 12 side.

The technical ideas other than the claims grasped from the embodiment will be described. (Technical Thought 1) In claim 1, the shielding portion is fitted so as to prevent the opening of both blade portions and to also function as a lock member in a state where the tip portions of the blade portions of both scissors pieces are shielded. Scissors.

In this technical idea 1, the number of parts is reduced,
Manufacturing and assembling operations can be easily performed. (Definition) In this specification, the shielding portion of the cover body that shields the distal end portions of the both blade portions is not limited to a structure that wraps around the distal end portion of the blade portion as in the above-described embodiment, and the blade is viewed from the front. It also includes a structure in which the distal end of the blade is guarded by a flat shielding portion or a linear material covering the distal end of the blade.

[0060]

As described in detail above, according to the first to twelfth aspects of the present invention, the operation of switching the position of the cover body can be easily performed, and the cover body becomes an obstacle during the use of the scissors. Can be avoided.

According to the second aspect of the present invention, since the advance / retreat distance of the cover is set to 1 to 30%, preferably 3 to 15% of the total length of the scissors, the position of the cover is switched. Can be easily performed.

According to the third aspect of the present invention, the first scissor piece or the second scissor piece is provided.
An engaging groove is formed at the base end of the handle portion of the scissor piece, and an engaging protrusion provided on the cover body is slidably engaged with the engaging groove. Can be easily performed.

According to the fourth aspect of the present invention, the engaging groove is formed by the narrow portion and the wide portion, and the engaging protrusion of the cover body is guided along the narrow portion, and the engaging protrusion is formed along the wide portion. Since the flange is guided and moved, the structure for preventing the detachment of the engagement protrusion can be simplified, and the work of engaging the engagement protrusion with the engagement groove can be easily performed.

According to the fifth aspect of the present invention, since the locking concave portion and the locking projection for locking the locked position and the unlocked position are formed on the base end portion of the handle portion and the inner surface of the cover body, the structure is simple. With this configuration, the locked position and the unlocked position of the cover body can be stably locked.

According to the sixth aspect of the present invention, since the engagement groove is provided to be inclined so as to be lower toward the tip of the blade portion, the cover body is switched to the unlock position by the cover body. The blade portion of one scissor piece can be protected, and safety can be improved.

According to the seventh aspect of the present invention, the number of components can be reduced and the manufacturing and assembling work can be easily performed. In the inventions according to claims 8 to 12, since the cover body is locally provided at the tip of the blade portion of one scissor piece, material costs can be reduced.

According to the eighth aspect of the present invention, since the locking member is constituted by the locking projection formed on the main body of the cover body and the locking step formed on the scissor piece, the structure is simplified. Can be.

According to the ninth aspect of the present invention, the position switching operation of the cover body can be easily performed. According to the tenth aspect, the number of parts can be reduced, the structure can be simplified, and the manufacturing and assembling operations can be easily performed.

According to the eleventh aspect of the present invention, the position switching operation of the cover body can be easily performed. According to the twelfth aspect of the present invention, the number of parts can be reduced, the structure can be simplified, and the manufacturing and assembling operations can be easily performed.

[Brief description of the drawings]

FIG. 1 is a front view of an unlocked state of a cover body showing a first embodiment of the scissors of the present invention.

FIG. 2 is a front view showing an unlocked state of the cover body with the scissors closed.

FIG. 3 is a front view showing a locked state of a cover body of the scissors.

FIG. 4 is an exploded perspective view in which scissors are turned upside down.

FIG. 5 is a horizontal sectional view of the scissors.

FIG. 6 is a rear view of the scissors of FIG. 3;

FIG. 7 shows a second embodiment of the scissors of the present invention, and (a)
Is a front view in a locked state, (b) is a rear view of the scissors in (a),
(C) is a front view of the unlocked state.

FIG. 8 is an exploded perspective view of a first scissor piece and a cover body of the scissors of the second embodiment.

FIG. 9 is an explanatory view of the operation of the cover body of the second embodiment.

FIG. 10 shows a third embodiment of the scissors of the present invention,
(A) is a front view of a locked state, (b) is a front view of an unlocked state.

FIG. 11 is an enlarged exploded perspective view of a main part of the scissors according to the third embodiment.

FIG. 12 is an operation explanatory view of the cover body of the third embodiment.

FIG. 13 shows a fourth embodiment of the scissors of the present invention,
(A) is a front view of a locked state, (b) is a front view of an unlocked state.

FIG. 14 is an enlarged exploded perspective view of a main part of the scissors according to the fourth embodiment.

FIG. 15 is an operation explanatory view of the cover body of the fourth embodiment.

FIG. 16 is a front view of the scissors of the fifth embodiment with a cover removed.

FIG. 17 is a front view of the scissors according to the fifth embodiment with a cover body attached thereto.

[Description of Signs] 11: first scissor piece, 12: second scissor piece, 14, 16: blade portion, 14a: slide groove, 14d: support hole, 15, 17
... handle, 15a ... base end, 15b ... engagement groove, 15c ... narrow part, 15d ... wide part, 18 ... cover body, 18a ... body part, 18c ... engagement protrusion, 18d ... shaft part, 18e ... Tsubabe,
18f: slit, 18h: locking projection, 18j: locking projection as a locking member, 19b: locking step, 22: first
Cover piece, 23: second cover piece, 23d: slide support portion, 23g: rotation support pin, 23j: locking ridge.

Continued on the front page (72) Inventor: Yu Kimura 1-6, Takayama-cho, Seki-shi, Gifu Yaki Industry Co., Ltd. F-term (reference) 3C061 AA31 BA03 BB08 BC03 3C065 AA03 AA23 BB02 CB01 DA09 DA13 FA05 FA17

Claims (12)

[Claims] 1. A lower blade (14) and an upper handle (1).
First scissor piece (11) consisting of 5) and upper blade (16)
And a second scissor piece (12) comprising a lower handle (17), which is attached to a shaft (13) so as to be openable and closable, wherein the first scissor piece (11) or the second scissor piece (12). In contrast, the cover body (18) is attached so as to be able to advance and retreat between the locked position and the unlocked position of both scissors pieces. While blocking the cutting edge, a lock member (18j) provided on the cover body (18) engages with the other scissor piece to lock both scissor pieces in a closed state, and the cover body (18) is in the unlocked position. In this state, the shielding of the cutting edges of both blade portions (14, 16) is released, and the lock member (18j) is released from the other scissor piece to be in the unlocked state. Characterized by being set at a short distance with . 2. The cover (1) according to claim 1, wherein
8) The retreat distance is 1 to 30% of the total length of the scissors.
Scissors set to. 3. An engaging groove (15b) according to claim 1, wherein a base end of the handle (15) of the first scissor piece (11) or the second scissor piece (12) is formed. , The engaging groove (15
b) has an engagement projection (18c) provided on the cover body (18).
Are reciprocally slidably engaged with each other so that the reciprocating sliding moves the cover body (18) forward and backward. 4. The engagement groove according to claim 3, wherein
b) is formed in the narrow portion (15c) on the outer surface side of the handle (15), and is formed in the wide portion (15d) on the inner surface side,
An engagement protrusion (18c) of the cover body (18) includes a shaft portion (18d) guided and moved along the narrow portion (15c);
A flange (18) guided and moved along the wide portion (15d)
e), the shaft portion (18d) and the flange portion (1).
8e) scissors divided by slits (18f) so that they can be elastically deformed and reduced in diameter in the middle part. 5. A method according to claim 3, wherein a plurality of latches for locking the cover in a locked position or an unlocked position are provided on a base end (15a) of the handle (15) and an inner surface of the cover (18). Scissors in which locking recesses (15f, 15g) and locking protrusions (18h) are formed. 6. The engagement groove according to claim 3, wherein
b) Scissors are provided so as to be inclined downward toward the tip of the blade portion (14). 7. The cover (1) according to claim 1, wherein
8) is connected to one scissor piece (11) so as to cover the outer surface of the blade portion (14) and to be reciprocally rotatable within a range of 1 to 30 degrees between a locked position and an unlocked position. A lock member (11) is provided between the cover body (18) and the other scissor piece (12) to lock both scissor pieces (11, 12) with the cover body (18) moved to the lock position. 18
j, scissors provided with 19b). 8. The scissors piece (11, 1) according to claim 7,
The lock member for locking 2) is composed of a locking projection (18j) formed on the main body (18a) of the cover body (18) and a locking step (19b) formed on the scissor piece (12). Scissors. 9. The cover body (1) according to claim 1, wherein
8) One scissor piece (11) of both scissor pieces (11, 12)
Scissors mounted locally at a position close to the tip of the blade portion (14) and slidably reciprocated between a locked position and an unlocked position. 10. The cover (1) according to claim 9, wherein
8) is configured by joining the first cover piece (22) and the second cover piece (23) so as to shield the tips of both blade portions,
The one cover piece (23) includes a slide support (23d) that guides and moves along a slide groove (14a) formed at the tip of the one blade (14). Positioning projections (14b,
Scissors provided with 14c). 11. The cover body (1) according to claim 1, wherein
8) One scissor piece (11) of both scissor pieces (11, 12)
Scissors locally mounted at a position close to the tip of the blade portion (14) and reciprocally rotatable between a locked position and an unlocked position. 12. The cover body (18) according to claim 11, wherein the cover body (18) is formed by joining a first cover piece (22) and a second cover piece (23) so as to be able to shield the tips of the two blades, The one cover piece (23) is provided with one blade (14).
A rotation support pin (23g) rotatably fitted into a support hole (14d) formed at the tip of the support hole (14d).
d) Scissors provided with a plurality of locking grooves (14e, 14f) for locking the locking ridge (23j) provided on the rotation support pin at a locked position or an unlocked position.