JP2000024341A - Scissors cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent scissors from coming off and prevent the blades of scissors from getting exposed. SOLUTION: The scissors cap 17 comprises a protective cover 18, a locking member 20 attached to the opening 19 side of one side edge thereof. The locking member 20 is attached openably to the protective cover 18 with a spindle 35, an engagement hole 32 that can be engaged with one end of a pivot core 15 is formed in the center of a connecting wall 32 forming the locking member 20. A pair of guiding pieces 24 is extended from the protective cover 18, and an engagement recess 25 is cut into a circular arc between them. By engaging the other end of the pivot core 15 with the engagement recess 25, and engaging the other end of the pivot core 15 with the engagement hole 32 through the positioning and fixing of the scissors 16 in a prescribed position of the protective cover 18, and by rotating the locking member 20 in the direction of closing, the scissors 16 is kept from coming off the cap 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap for scissors, which can hold both blades in a closed state when the scissors are not used, and can prevent the scissors from coming out while maintaining the state. is there.

[0002]

2. Description of the Related Art A conventional scissors cap for accommodating both blades of a pair of scissors in a closed state is formed of synthetic resin or the like in a shape similar to the blade, and an opening formed at one end thereof. The two blades are housed from the outside, and the blades are protected from the outside. Also, in order to prevent the scissors from falling out of the cap, a notch having an opening slightly smaller than the diameter of the axis is formed near the opening of the cap, so that the notch can be engaged with the axis of the scissors. I have.

When the blade is inserted into the cap with both blades closed, the opening of the notch is enlarged and deformed by the shaft core, then contracted to engage the shaft core with the notch, and the opening is opened. The shaft core is prevented from coming off from the part.

[0004]

However, only by engaging the notch of the cap of the scissors, when the cap is grasped and shaken strongly, the shaft core comes out of the cap of the scissors due to the centrifugal force of the scissors. There is a problem that the scissors move vigorously, the opening of the cutout portion expands and deforms, and the scissors fall out of the cap.

The present invention has been made by focusing on the problems existing in such prior art. An object of the present invention is to provide a scissors cap capable of reliably preventing the scissors from coming off and preventing the blade of the scissors from being exposed.

[0006]

In order to achieve the above object, a scissors cap according to the first aspect of the present invention protrudes from a pair of scissor pieces having a grip portion and a blade, and opposing positions thereof. A protective cover for supporting the pair of scissors pieces in a closed state with both blades closed and comprising a shaft core that supports the pair of scissor pieces so as to be openable and closable by a support shaft in an opening of the protective cover, When the blades are housed in the protective cover in a closed state, the lock member is formed with an engaging portion for engaging at least one outer periphery of the shaft core to prevent the protective cover from falling off.

According to a second aspect of the present invention, the cap of the scissors according to the first aspect of the present invention engages the outer periphery of the other end of the shaft core with the opening of the protective cover, and places both blades in the protective cover. An engagement recess for positioning scissors housed in a closed state at a predetermined position is formed.

According to a third aspect of the present invention, in the scissors cap according to the first or second aspect, between the protective cover and the lock member, the lock member is turned in the opening direction in the closed state. A rotation preventing means for preventing the movement is provided.

According to a fourth aspect of the present invention, there is provided the scissors cap according to the third aspect, wherein the rotation preventing means includes a convex portion or a concave portion formed on an outer surface of the opening of the protective cover, and a locking member. This is an engagement relationship with a concave portion or a convex portion formed on the inner surface.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. As shown in FIGS. 1 and 2, the pair of scissors pieces 11 includes a blade body 12 made of metal, ceramic, or the like, and a grip portion 13 made of a synthetic resin attached to one end thereof. ing. And
The blade body 12 is rotatably supported by a shaft core 15 attached to the center of the blade body 12 via a washer 14 so that the blade body 12 can be opened and closed. Both ends of the shaft core 15 are both scissors pieces 11.
It protrudes from both sides. A pair of scissors 11 and a shaft core 15 composed of the blade body 12 and the grip portion 13 constitute scissors 16.

The cap 17 of the scissors comprises a protective cover 18 made of a synthetic resin and a lock member 20 made of a synthetic resin attached to an opening 19 at one side edge thereof.

As shown in FIGS. 1 and 3A and 3B, the protective cover 18 comprises a pair of opposed base walls 21a, 21a.
1b and a pair of side walls 22a and 22b opposed to each other are formed in a sheath shape. The opening 19 is formed on one end side of the protective cover 18, and a housing portion 23 for housing the two blades 12 in a closed state is formed in an inner part of the opening 19.

As shown in FIG. 4, a pair of guide pieces 24 are formed to extend from one base wall 21a toward one end of the protective cover 18, respectively. The engagement concave portion 25 is formed in the center between the pair of guide pieces 24 by cutting out from the one end side of the protective cover 18 in a substantially arc shape toward the housing portion 23. Further, the diameter of the engaging recess 25 is formed so as to correspond to the outer diameter of the shaft core 15, and the opening thereof is smaller than the outer diameter of the engaging recess 25 on the housing portion 23 side. FIG. 3 (a),
As shown in FIG. 4B and FIG. 4, the support portion 26 is formed by cutting out the surface of the pair of guide pieces 24 so as to have a predetermined width outward along the outer peripheral edge of the engagement recess 25. The outer peripheral edge corresponds to the outer diameter of the washer 14.

A pair of U-shaped cutouts 27 are formed at opposing positions of the pair of base walls 21a and 21b, and one cutout 27 is located at the center of the engagement recess 25 on the side of the housing 23. From the center of the opening 19 of the other base wall 21b.
Is formed to have a predetermined depth in the direction of the other end. The convex portion 28 is formed so as to protrude at a position facing the outer surfaces of the pair of side walls 22a and 22b.

When the two blades 12 are moved in the direction of the accommodating portion 23, the pair of guide pieces 24 can guide the scissors 16 in the direction of the accommodating portion 23. When the two blades 12 are housed in the housing portion 23, the outer periphery of the other end side of the shaft core 15 is engaged with the engagement recess 25, and
The washer 14 is supported on the support 26. Therefore, scissors 1
6 can be positioned and fixed at a predetermined position on the protective cover 18. At this time, the pair of cutouts 27 smoothly expand and deform the opening when the other end of the shaft core 15 passes through the opening of the engagement recess 25. A mounting hole (not shown) is provided in the opening 1 of the pair of side walls 22a and 22b.
In the vicinity of 9, it is formed at a position facing the other end side of the protective cover 18 from the convex portion 28.

As shown in FIG. 3A, the lock member 20
Are integrally formed in a U-shaped cross section with a pair of opposed holding walls 30a and 30b and a connecting wall 31 formed so as to be continuous with one end edge thereof. Engagement hole 32 as engagement portion
Is formed at the center of the connecting wall 31. The recess 33 is recessed at a position facing the inner surfaces of the pair of holding walls 30a and 30b. When the lock member 20 is in the closed state, the pair of convex portions 28 of the protective cover 18 are engaged with the concave portions 33 so as to constitute a rotation preventing means of the lock member 20.

The pair of through-holes 34 are formed at opposing positions on the base end sides of both holding walls 30a and 30b of the lock member 20. The lock member 20 is attached to the protective cover 18 so as to be openable and closable by allowing the support shaft 35 to pass through the through holes 34 and the mounting holes of the protective cover 18 respectively. When the lock member 20 is in the closed state, the engagement hole 32 and the engagement recess 25 are opposed to each other.

When the blades 12 are accommodated in the accommodating portion 23 and the scissors 16 are positioned at predetermined positions by the engaging concave portions 25 and the lock member 20 is rotated in the closing direction, the engaging holes 32 are aligned with the shaft center. 15 is engaged with the outer periphery on one end side.

Next, the method of using the cap 17 of the scissors and its operation will be described. As shown in FIG. 5, the lock member 20 of the cap 17 of the scissors is rotated in the opening direction, and the housing portion 23 is opened. Next, with the blades 12 of the scissors piece 11 closed, the blades 12 are moved toward the storage portion 23 of the protective cover 18 so that the other end of the shaft core 15 is engaged with the engagement recess 25.
Abut on the opening. Further, the scissors 16 are moved in the direction of the accommodating portion 23 so that the opening is enlarged and deformed, so that the shaft core 15 is
5 through the opening. Thereafter, the opening is reduced in diameter, the other end side of the shaft core 15 is engaged with the engagement concave portion 25, and the washer 14 is supported on the support portion 26.

At this time, as shown in FIG.
Since the opening of the shaft 5 is formed narrower than the outer diameter of the shaft core 15, the other end of the shaft core 15 is prevented from falling out of the engagement recess 25, and the scissors 16 are positioned and fixed at a predetermined position of the protective cover 18. You. Further, at this time, the pair of cutout portions 27 smoothly expand and deform the opening when the shaft core 15 passes through the opening of the engaging recess 25.

Subsequently, as shown in FIG.
0 is rotated in the closing direction so that the engagement hole 32 is engaged with the outer periphery of one end of the shaft core 15, and the pair of concave portions 33 of the lock member 20 is engaged with the pair of convex portions 28 of the protective cover 18. As a result, the engagement between the convex portion 28 and the concave portion 33 constitutes a rotation preventing means, and the lock member 20 is fixed to the protective cover 18 so as not to rotate in the opening direction, and the scissors 16 come out of the cap 17. Can be prevented.

To remove the scissors 16 from the cap 17, the lock member 20 is rotated in the opening direction and
Between the shaft and one end of the shaft core 15 and the recess 3 of the rotation preventing means
3 and the projection 28 are respectively disengaged. Then, the scissors 16 are pulled out in the direction opposite to the direction of the accommodation portion 23, and the shaft core 15 is pulled out.
Is disengaged from the engagement recess 25. As a result, the scissors 16 can be pulled out of the cap 17.

As described above, according to this embodiment, the following effects are exhibited. According to the scissors cap 17 of this embodiment, when the two blades 12 of the scissors 16 are housed in the housing portion 23 of the protective cover 18 in a closed state, the lock member 20 The engagement hole 32 is engaged. Therefore, it is possible to reliably prevent the scissors 16 from falling out of the cap 17.

According to the cap 17 of the scissors of this embodiment, a pair of guide pieces 24 are formed on one base wall 21a of the protective cover 18 so as to extend therefrom.
Are cut out in a substantially arc shape. Further, the diameter of the engaging recess 25 is formed so as to correspond to the outer diameter of the shaft core 15, and the opening thereof is smaller than the outer diameter of the engaging recess 25 on the housing portion 23 side. Therefore, when the two blades 12 of the scissors 16 are accommodated in the accommodation portion 23 of the protective cover 18 in a closed state, and the other end of the shaft core 15 is engaged with the engagement recess 25, the scissors 1
6 can be positioned and fixed at a predetermined position on the protective cover 18. As a result, when the lock member 20 is rotated to the closed state, the engagement hole 32 can be securely engaged with one end of the shaft core 15.

According to the cap 17 of the scissors of this embodiment, a pair of guide pieces 24 are formed on one base wall 21a of the protective cover 18 so as to extend therefrom. Therefore, when the scissors 16 are moved in the direction of the storage section 23 of the protective cover 18, the pair of guide pieces 24 can reliably guide the two blades 12 in the direction of the storage section 23.

According to the scissors cap 17 of this embodiment, the projection 28 is formed by a pair of side walls 22 a of the protective cover 18.
The outer surface of the outer surface 22b is formed to protrude at a position facing the outer surface,
Are recessed at opposing positions on the inner surfaces of the pair of holding walls 30a, 30b of the lock member 20. When the lock member 20 is in the closed state, the pair of concave portions 33 is engaged with the pair of convex portions 28, respectively, and the rotation preventing means of the lock member 20 is configured. As a result, the protection cover 18 prevents the lock member 20 from rotating in the opening direction by the rotation preventing means.
And the scissors 16 can be prevented from falling out of the cap 17.

According to the scissors cap 17 of this embodiment, the support portion 26 is notched such that the surfaces of the pair of guide pieces 24 have a predetermined width outward along the outer peripheral edge of the engagement recess 25. The outer peripheral edge thereof corresponds to the outer diameter of the washer 14. Therefore, when the two blades 12 of the scissors 16 are accommodated in the accommodation portion 23 of the protective cover 18 in a closed state, and the other end of the shaft core 15 is engaged with the engagement recess 25, the washer 14 is Is held in a stable state while holding the outer peripheral edge of Therefore, the scissors 16 are used as the protective cover 1
8 can be prevented from rattling and can be stably stored in the cap 17 of the scissors.

According to the cap 17 of the scissors of this embodiment, the notch 27 is formed in each of the pair of base walls 21 a and 21 b of the protective cover 18. Therefore, when the other end of the shaft core 15 passes through the opening of the engagement recess 25, the opening can be easily enlarged and the diameter of the opening can be reduced after passing through the opening.

According to the scissors cap 17 of this embodiment, the lock member 20 is rotated to the open state,
When the engagement between one end of the shaft and the engagement hole 32 is released,
An engagement recess 25 is engaged with the other end of 5. Therefore, even when the lock member 20 is in the open state, the scissors 16 can be prevented from falling out of the cap 17.

The above-described embodiment can be modified and embodied as follows. As shown in FIG. 8, when the lock member 20 is in the closed state, the engagement hole 32 as an engagement portion is cut out in a semicircular shape so as to have an opening in the protective cover 18 direction. With this configuration, it is possible to prevent the scissors 16 from coming out of the cap 17 when the engagement hole 32 is engaged with one end of the shaft core 15.

As shown in FIG. 9, a pair of bearings 36 extending in the width direction of the protective cover 18 and capable of penetrating and supporting the support shaft 35 near the opening 19 on the outer surface of the other base wall 21 b of the protective cover 18. To form Further, a pair of mounting portions 37 are formed to extend from the connecting wall 31 of the lock member 20 toward the protective cover 18, and holes 38 are respectively formed in the central portions thereof. Then, the support shaft 3 is provided in each of the holes 38 and the bearing 36.
5 and the lock member 20 is protected by the protective cover 18.
To be rotatable with respect to At this time, an engagement hole 32 that can be engaged with the shaft core 15 is formed in the center of the connection wall 31 of the lock member 20. Also in the case of such a configuration, it is possible to prevent the scissors 16 from coming out of the cap 17 by engaging the engagement hole 32 with the shaft core 15 on one end side.

As shown in FIG. 10, the protective cover 18
A bearing 36 capable of penetrating and supporting the support shaft 35 is formed in one of the side walls 22a and 22b in the longitudinal direction of the protective cover 18. Further, a pair of mounting portions 37 are formed on the holding wall 30b of the lock member 20 so as to correspond to the length in the longitudinal direction of the bearing 36, and holes 38 are formed at the centers thereof.
Then, the support shaft 35 is passed through the bearing 36 from the hole 38 to support the lock member 20 rotatably with respect to the protective cover 18. At this time, an engagement hole 32 that can be engaged with the shaft core 15 is formed in the center of the connection wall 31 of the lock member 20. Also in the case of such a configuration, it is possible to prevent the scissors 16 from coming out of the cap 17 by engaging the engagement hole 32 with the shaft core 15 on one end side.

The projection 28 as a rotation preventing means formed on the protective cover 18 is changed to a concave part, and the concave part 33 as a rotation preventing means formed on the lock member 20 is changed to a convex part. Also in this configuration, when the lock member 20 is turned to the closed state, the lock member 20 turns in the opening direction by forming the rotation preventing means by the engagement relationship between the concave portion and the convex portion. Can be prevented.

The protective cover 18 and the lock member 20 constituting the scissors cap 17 are made of aluminum, stainless steel, or the like. With such a configuration, the same effect as that of the embodiment can be obtained.

An elastic member such as synthetic rubber is joined to the inner peripheral edge of the opening 19 of the protective cover 18. In such a configuration, when the blades 12 of the scissors 16 are stored in the storage portion 23, the elastic member presses the outer surface of the scissors 16, and the locking member 20 and the elastic members cooperate to separate the scissors 1 from the cap 17.
6 can be more reliably prevented from coming off.

The storage section 23 with both blades 12 closed
A pair of lock members 20 are openably and closably attached to the opening 19 of the protective cover 18 so as to engage with the outer circumferences of both ends of the shaft core 15 when housed therein. In the case of such a configuration, one or the other lock member 20 is engaged with one end or the outer periphery of the other end of the shaft core 15 to position and fix the scissors 16. Further, the other or one of the lock members 20 is
Of the scissors 1 from the cap 17
6 can be prevented from slipping out.

Further, the technical idea grasped from the above embodiment will be described below. The protection cover is formed by a pair of base walls facing each other and a pair of side walls facing each other, and a pair of guide pieces are formed to extend from one base wall toward one end of the protection cover, respectively. 4. The scissors cap according to any one of 4. With this configuration, when the two blades of the scissors are moved in the direction of the accommodating portion of the protective cover, the two blades can be reliably guided in the direction of the accommodating portion by the pair of guide pieces.

The protective cover is formed of a pair of base walls facing each other and a pair of side walls facing each other, and a pair of cutouts are formed at a predetermined depth from the opening of the protective cover toward the other end of the protective cover. The scissors cap according to any one of claims 1 to 4, wherein a notch is formed at the center of each of the pair of base walls so as to have a certain height. With this configuration, it is possible to easily perform the expansion deformation of the opening when the shaft core passes through the opening of the engagement concave portion and the diameter reduction deformation after the passage.

The protective cover is formed of a pair of opposed base walls and a pair of opposed side walls, and a pair of guide pieces are formed to extend from one base wall toward one end of the protective cover, The supporting portion is formed by cutting out a predetermined width outward along the outer peripheral edge of the engaging recess on the surface of the pair of guide pieces, and the outer peripheral edge is interposed between the scissor piece and the shaft core. The scissors cap according to any one of claims 1 to 4, wherein the scissors cap corresponds to an outer diameter of the set washer. In such a configuration, when the blades of the scissors are housed in the housing portion of the protective cover in a closed state, and the shaft at the other end is engaged with the engagement recess, the washer is stabilized by the support portion. Can be supported. Therefore, the scissors can be prevented from rattling on the protective cover, and can be stably accommodated in the cap of the scissors.

The scissors cap according to claim 2, wherein the opening of the engaging recess is smaller than the outer diameter of the engaging recess on the housing portion side. In such a configuration, when both blades of the scissors are accommodated in the accommodation portion of the protective cover in a closed state, and the shaft at the other end is engaged with the engagement recess, the shaft comes out of the engagement recess. Thus, the scissors can be positioned and fixed at a predetermined position on the protective cover.

[0041]

The present invention is configured as described above, and has the following effects. According to the scissors cap of the first aspect of the present invention, the scissors can be reliably prevented from coming off, and the blade of the scissors can be prevented from being exposed.

According to the scissors cap of the second aspect of the invention, in addition to the effects of the first aspect of the invention, both ends of the scissors are housed in the accommodating portion of the protective cover in a closed state. When the side shaft is engaged with the engaging recess, the scissors can be positioned and fixed at a predetermined position on the protective cover.

According to the scissors cap of the third aspect of the present invention, in addition to the effects of the first or second aspect of the present invention, the lock member is prevented from rotating in the opening direction by the rotation preventing means. While being fixed to the protective cover, the scissors can be prevented from falling out of the cap.

According to the scissors cap of the fourth aspect,
In addition to the effect of the third aspect of the present invention, the rotation preventing means can be easily configured, and its function can be reliably exhibited.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a scissor cap according to an embodiment is attached to scissors.

FIG. 2 is an exploded perspective view showing scissors and a cap of the scissors.

3A is a front view showing a closed state of a lock member of the cap of the scissors, and FIG. 3B is a front view showing an open state of the lock member of the cap of the scissors.

FIG. 4 is a plan view showing an opened state of a lock member of a cap of scissors.

FIG. 5 is a side view showing an open state of a lock member of a cap of scissors.

FIG. 6 is a rear view showing a state in which the shaft core is engaged with the engaging concave portion of the protective cover.

FIG. 7 is a side view showing the operation of the cap of the scissors of the embodiment.

FIG. 8 is a plan view showing another example of the cap of the scissors of the embodiment.

FIG. 9 is an exemplary perspective view showing another example of the cap of the scissors according to the embodiment;

FIG. 10 is a perspective view showing another example of the cap of the scissors of the embodiment.

[Explanation of symbols]

11 ... scissors piece, 12 ... blade, 13 ... grip, 15 ... shaft core,
16 ... scissors, 17 ... cap of scissors, 18 ... protective cover, 1
9 ... opening, 20 ... lock member, 25 ... engaging recess, 28
.., Protrusions as rotation preventing means, 32... Engaging holes as engaging parts, 33.

Claims (4)

[Claims] 1. A pair of scissors comprising a pair of scissors having a grip portion and a blade, and a shaft which is penetrated and supported so as to protrude from a position facing the pair and which supports the pair of scissors in an openable and closable manner. And a cover that can be opened and closed by a support shaft at the opening of the protection cover. When both blades are closed and stored in the protection cover,
A scissors cap comprising a lock member formed with an engagement portion for engaging at least one outer periphery of the shaft core to prevent the protective cover from falling off. 2. An engaging recess which engages the opening of the protective cover with the outer periphery of the other end of the shaft core and positions scissors housed in the protective cover with both blades closed in a predetermined position. The scissors cap according to claim 1 formed. 3. The scissors according to claim 1, further comprising a rotation preventing means provided between the protective cover and the locking member to prevent the locking member from rotating in the opening direction in the closed state. Cap. 4. The locking device according to claim 1, wherein the rotation preventing means has an engagement relationship between a convex portion or a concave portion formed on an outer surface of the opening of the protective cover and a concave portion or a convex portion formed on an inner surface of the lock member. Item 4. A scissors cap according to item 3.