JPH0649113B2 - Scissors - Google Patents

Description

TECHNICAL FIELD The present invention relates to scissors in which a pair of scissor pieces such as cooking scissors, rusher scissors, and paper scissors are removable from each other. Is.

[Prior Art] In the conventional cooking scissors shown in FIG. 7, a pair of scissors pieces 20a and 20b are detachable from each other.
That is, the support shaft 24 is provided so as to project from one scissor piece 20a, and the rectangular insertion hole 26 that is long in the length direction thereof is provided at the other scissor piece 20b. Further, a pair of flanges 25 is provided on the left and right sides of the insertion hole 26 in the width direction. The two scissors pieces 20a, 20b of the scissors are composed of the handholds 22a, 22b and the blades 21a, 21b connected to their front ends. The scissors rotate the pair of scissors pieces 20a and 20b so as to open the pair of scissors pieces 20a and 20b to positions substantially perpendicular to each other.
4 and the insertion hole 26 correspond to each other and both scissor pieces 20a,
20b becomes removable. A restricting member 23 for restricting the rotation of both the scissor pieces 20a and 20b within a range narrower than 90 ° is attached to the tip of the handle portion 22a of the one scissor piece 20a. The regulating member 23 is rotatable between a position in which it is laid down so as to contact the blade body 21b as shown by a solid line, and a position where it is raised so as to be separated from the blade body 21b as shown by a chain double-dashed line. Has become.

Therefore, when the scissors are used, both the scissors pieces 20a and 20b are in a state where the regulating member 23 is laid down on the blade body 21b.
When the blades are rotated so as to open each other greatly, the spine 27 of the blade body 21b comes into contact with the regulation member 23, and the opening angle is 90 °.
Is regulated within a narrower range. Therefore, the two scissors pieces 20a, 20b will not accidentally open 90 ° or more and come off from each other.

When the scissors 20a and 20b are to be removed, the regulating member 23 is raised as shown by the chain double-dashed line. After that, when both scissor pieces 20a and 20b are opened to a position forming a substantially right angle, the support shaft 24 corresponds to the insertion hole 26 and both scissor pieces 20a and 20b.
a and 20b can be removed. Further, when assembling the two scissors pieces 20a and 20b from each other in this state, the two scissors pieces 2 are kept in the state where the restricting member 23 is raised.
The support shafts 24 of 0a and 20b are assembled so as to correspond to the insertion holes 26. Then, after closing both the scissors pieces 20a and 20b, the regulating member 23 of the one scissors piece 20a is turned down to the original position.

[Problems to be Solved by the Invention] However, in the conventional scissors for cooking, each time the scissors pieces 20a, 20b are removed or assembled, the regulating member 23 is raised or laid down. There was an inconvenience that had to be made. Further, after the scissors pieces 20a and 20b are assembled, the regulating member 23 is attached to the blade body 21.
If the scissors for cooking are used without forgetting to lay them down on b, the scissors pieces 20a and 20b may be unintentionally disengaged from each other if they are opened widely until they are substantially orthogonal to each other.

The object of the present invention is that the opening of the scissors is regulated by the regulation member during normal use to maintain a predetermined regulation range, both scissors do not accidentally come off, and when both scissors are removed. An object of the present invention is to provide scissors that can be removed by one operation of widening both scissors pieces beyond the regulation range against the regulation of the regulation member and that does not require finger operation as in the prior art. .

[Means for Solving the Problems]

In order to achieve the above-mentioned object, in the present invention, a pair of scissor pieces coupled by an engagement shaft attached to one scissor piece and an engagement hole provided in the other scissor piece are removable from each other. In the scissors, when the scissor piece is opened at a specified angle, the back of the other scissor piece comes into contact, and the opening angle is regulated within a specified regulation range to maintain a normal use condition. , When the scissors are opened beyond the regulation range against the regulation force, the back of one of the scissors slides up the regulation slope, and an opening is provided to allow the engagement of both scissors to be released, and it has elasticity. The gist is that the regulating member is attached to one of the scissors by the engaging shaft.

[Action]

In a normal use state, the opening of the scissors is regulated within a predetermined regulation range by the regulation member so that the scissors will not accidentally come off. When the scissors are to be removed, the scissors are opened far beyond the regulation range by resisting the regulation force of the regulation member, so that the elasticity of the regulation member pushes out one of the scissors for easy removal.

[Embodiment] A first embodiment in which the present invention is embodied as a scissors for cooking will be described below with reference to Figs.

As shown in FIG. 1 (a), a pair of upper and lower scissor pieces 1 and 2
Are respectively composed of the handhold portions 3a and 3b and the blade bodies 4a and 4b connected to the front ends thereof. An engaging shaft 5 is attached to the blade body 4b of the lower scissor piece 2, and the upper and lower scissor pieces 1 and 2 rotate relative to each other around the engaging shaft 5. The head portion 9 of the engagement shaft 5 projects onto the inner surface of the lower scissor piece 2, and has a rectangular shape in a plan view.
Extend in a direction orthogonal to the length direction of the.

As shown in FIG. 2 (a), the central portion in the length direction of the engaging shaft 5 is an engaging portion 10 extending in a direction orthogonal to the extending direction of the head 9. A threaded portion 11 is provided on the lower surface of the engaging portion 10 so as to project therefrom.

The blade body 4b of the lower scissor piece 2 is provided with a shaft hole 12 which is long in the length direction thereof, and the engagement hole 5 is provided in the coaxial hole 12.
The screw part 11 is inserted, and the engaging part 10 is non-rotatably engaged. Then, the screw portion 11 projects to the outside of the scissors piece 2, and the regulating member 6 and the washer 7 are tightened and fixed to the screw portion 11 by the nut 8.

As shown in FIG. 2 (a), the upper scissors piece 1 is provided with a fitting hole 13 having a rectangular shape in a plane and long in the lengthwise direction thereof. Further, a pair of flanges 14 is provided on both sides of the fitting hole 13 in the width direction. When the scissors 1 and 2 shown in FIG. 2 (b) are closed and the scissors 1 and 2 are rotated to positions substantially perpendicular to each other, the head 9 of the engagement shaft 5 is fitted with the fitting. Corresponding to the hole 13, both scissors pieces 1, 2 can be removed. As shown in FIGS. 1 (b) and 2 (b), except when the scissors pieces 1 and 2 form approximately 90 °, the head 9 of the engaging shaft 5 is on the pair of collars 14 of the upper scissors piece 1. The two scissors pieces 1 and 2 are not disengaged from each other.

As shown in FIG. 2 (a), the restriction member 6 is an elastic member made of a plate material, and includes an elastic portion 6a that abuts the outer surface of the blade body 4b of the scissor piece 2 and one side of the elastic portion 6a. And an abutting portion 6b extending upward along the ventral side surface 4c of the blade body 4b. An insertion hole 15 is provided through the elastic portion 6a, and the threaded portion 11 of the engagement shaft 5 is inserted into the insertion hole 15.

In particular, as shown in FIG. 3, the contact portion 6b of the regulating member 6
A standing portion 16a having a height that does not reach the inner surface of the blade body 4b is formed at the front portion of the upper edge (the left portion of the upper edge in FIG. 3), and the standing portion 16a extends toward the upper portion of the inner surface of the blade body 4b. A regulation slope 18 that extends obliquely is formed, and an opening 16 that is continuous with the regulation slope 18 and is located above the inner side surface of the blade body 4b is provided. Therefore, as shown in FIG. 4 (a), before the scissors pieces 1 and 2 are rotated to a position where they are substantially perpendicular to each other (the opening angle is about 80 ° in this embodiment), the inside of the blade body 4a is The corner portion 19 of the spine 17 engages with the locking portion 18 of the regulation member 6 to temporarily regulate the rotation of the scissors pieces 1 and 2. As shown in FIG. 2 (a), the washer 7 is provided on both outer peripheral edge portions thereof with fine concave and convex anti-slip portions 7a. This is to prevent it from loosening.

Next, assembly and removal of the scissors configured as described above will be described.

First, the removal will be described. When removing both scissors pieces 1 and 2 of the cooking scissors shown in FIG. 2B for washing, the scissors pieces 1 and 2 are rotated so as to open each other. . Then, as shown in FIG. 4 (a), the corner portion 19 of the spine 17 of the blade body 4 a of the upper scissor piece 1 engages with the locking portion 18 of the regulating member 6 (at this time, the scissor piece 1 (The opening angle of 2 is about 80 °) The rotation of the upper scissors piece 1 is once restricted, and the opening angle of the scissors pieces 1 and 2 in the normal use state is within the predetermined restriction range.

After that, in order to release the connection between the two scissors pieces 1 and 2, when the two scissors pieces 1 and 2 are further rotated against the restriction force by the elasticity of the restriction member 6, the restriction slope 18 is formed by the corner portion 19 of the blade body 4a. Is pushed, the regulating member 6 is pushed down with the engaging shaft 5 as a fulcrum, and the corner portion 19 slides while sliding up the regulating slope 18 as the scissor pieces 1 and 2 rotate, as shown in FIG. 4b. As shown, when the restriction slope 18 and the corner portion 19 are disengaged (at this time, the opening angle is 85 °) and the blade body 4a of the upper scissor piece 1 rides on the opening portion 16, the opening portion of the regulating member 6 is released. 16 is pushed down to the same plane as the inner surface of the blade body 4b, and it becomes possible to open both scissors pieces 1 and 2 at a substantially right angle.

As shown in FIG. 4 (c), when the scissors 1 and 2 are opened at a substantially right angle, the fitting hole 13 of the upper scissors 1 and the engagement shaft 5 are opened.
And the head 9 thereof correspond to each other. When the fitting hole 13 and the head portion 9 correspond to each other as described above, the blade body 4a of the upper scissor piece 1 that has been pressed upward by the opening portion 16 by the elasticity of the regulating member 6 is pushed up by the opening portion 16. As a result, the entire upper scissors piece 1 floats slightly. Therefore, by lifting the floating scissors piece 1 upward, both scissors pieces 1,
2 can be completely removed, and the regulating member 6 returns to the original state shown in FIG.

When assembling the two scissors pieces 1 and 2, contrary to the above-mentioned removal, first, as shown in FIG. 1 (a), the two scissors pieces 1 and 2 are vertically stacked so that they are substantially orthogonal to each other. Let Then, the fitting hole 13 of the upper scissor piece 1 and the head portion 9 of the engagement shaft 5 of the scissor piece 2 are made to correspond to each other, and the opening 16 of the regulating member 6 is formed on the inner surface of the blade body 4a of the scissor piece 1.
Is pressed downward against its elasticity. At this time, the opening portion 16 retracts. Then, after pressing, the blade body 4a of the scissors piece 1
When the inner surfaces of the scissors piece 2 and the blade body 4b come into contact with each other, the scissors pieces 1 and 2 are rotated in a direction to close each other.
Then, the regulation member 6 that was pushed down when the corner portion 19 of the blade body 4a was disengaged from the opening portion 16 returns to the original upward movement position again by the elastic force, so that the opening portion 16 and the regulation slope 18
Project on the inner surface of the blade body 4b. When using the scissors for cooking, the assembly operation of which has been completed as above, both scissors pieces 1,
Even if 2 is greatly pulled, the corner portion 19 of the spine 17 of the blade body 4a of the scissors piece 1 is once restricted by the restriction slope 18 of the restriction member 6.
Therefore, both scissors pieces 1 and 2 do not come off easily.

The regulating member 6 and the blade body 4a of the scissors piece 1 have the same hardness, and the corner portion 19 of the blade body 4a is slightly chamfered. Therefore, when the scissors pieces 1 and 2 are attached and detached, even if the corner portion 19 of the blade body 4a rubs against the regulation slope 18, only one of them is not significantly scraped and reduced. Part 19 and regulation slope 18
There is little resistance when and rub against each other.
The turning operation of 2 can be performed easily.

In the above embodiment, since the elastic member of the regulating member 6 is used, the elastic force causes the regulating member 6 to return to its original position. Therefore, it is not necessary to make the regulating member lie down or to raise the regulating member with each finger when attaching and detaching the scissors pieces 1 and 2.

After the scissors 1 and 2 are assembled, the regulating member 6 returns to its original position due to its elastic force.
8, the open portion 16 projects onto the inner surface of the blade body 4b of the lower scissor piece 2. As a result, the two scissors pieces 1 and 2 do not accidentally come off, and it is not necessary to operate the regulating member 6.

It should be noted that the present invention is not limited to the above-mentioned embodiment, and can be arbitrarily modified within a range not departing from the spirit of the present invention.

For example, as shown in FIGS. 5 to 6 (b), the regulating member 3
8 may be formed of a wire material having elasticity. In this case, the base end thereof is crushed into a plate shape to form the elastic portion 39, and
The portion that rises upward from the above portion is the contact portion 41. As shown in FIG. 8 (b), further, a regulation slope 42 is formed which extends rearward and upward from the upper end of the abutting portion 41 to project upward on the inner surface of the blade body 4 b, and the regulation slope An open portion 43 that horizontally extends rearward from the rear end of the rear end 42 is formed.

As shown in FIG. 7, the regulating member 38 is attached such that the elastic portion 39 is in contact with the outer surface of the blade body 4b of the lower scissor piece 2.

Even in this embodiment, the scissors piece 1 is in a normal use state.
The rotation of the is regulated by the regulation slope 42 and opens and closes within a predetermined regulation range. When the scissors pieces 1 and 2 are removed, if the scissors piece 1 is further opened against the restriction force, the restriction slope 42 is pushed by the corner portion 19 of the blade body 4a as in the first embodiment, and the restriction member 38 is pushed. Is pushed down, the corner portion 19 slides up on the restriction slope 42 to reach the opening portion 43, and both scissors pieces 1 and 2 can be removed as described above.

In addition, in all the above-mentioned Examples, the regulating members 6, 38
If uneven slip stoppers are provided on both upper and lower surfaces of the elastic portions 6a, 39, they also serve as the slip stopper portions 7a of the washer 7, so that the washer 7 need not be attached.

In this example, the present invention was embodied in cooking scissors,
The present invention can also be applied as a rusher scissors, a scissors scissors and the like.

[Effects of the Invention] As described above, in the present invention, in the normal use state by the restricting member, the opening degree of both scissors pieces is restricted within a predetermined restriction range and does not come off. When the piece is opened, the regulation member is pushed down and the scissor piece is removed in one operation, and the attachment of the regulation member does not require any machining work on the scissor piece, which has the effect of reducing man-hours and being suitable for mass production. .

[Brief description of drawings]

1 to 4 show a first embodiment in which the present invention is embodied as cooking scissors, and FIG. 1 (a) is a perspective view with both scissors pieces removed, and FIG. 1 (b). 2 is an enlarged cross-sectional view showing a shaft-attached portion of both scissors, FIG. 2 (a) is an exploded perspective view showing a state in which an engagement shaft for the lower scissors and the regulating member are removed, and FIG. 2 (b) is both scissors. Fig. 3 is a perspective view showing a closed state of the piece, Fig. 3 is a partially enlarged side view showing a shape of a contact portion of the regulating member, and Fig. 4 (a) is a state in which the upper blade is engaged with the regulating member. FIG. 4B is a partially enlarged side view showing a state in which the blade retracts the regulating member.
FIG. 6C is a partially enlarged side view showing a state in which the blade is pushed up by the regulating member, FIGS. 5 to 6 show another example of the regulating member, and FIG. 5 is a scissor piece of the regulating member formed of a wire rod. 6 is a perspective view showing a state in which both scissor pieces are attached to
FIG. 6A is an enlarged perspective view showing the shape of the regulating member, FIG. 6B is a partially enlarged side view showing the positional relationship of the regulating member with respect to both scissors pieces, and FIG. 7 is a cooking blade of a conventional example. FIG. 1, 2, ... scissors, 6, 38 ... regulating member, 16, 4
3 ... Open section.

Claims (1)

[Claims] 1. A pair of engaging shafts (5) attached to one scissor piece (1, 2) and an engaging hole (13) provided in the other scissor piece (1, 2). Scissors pieces (1,2)
When the scissors are detachable from each other, when the scissors pieces (1, 2) are opened at a predetermined angle, the spines (17) of the other scissors pieces (1, 2) come into contact with each other, and the opening angle is within a predetermined regulation range. Regulated slopes (18, 42) which are regulated to maintain normal use, and scissor pieces (1, 42) connected to the regulated slopes (18, 42).
When 2) is opened beyond the regulation range against the regulation force, the spine (17) of one of the scissors pieces (1, 2) has the regulation slope (18, 4).
2) sliding up the scissors, the opening portions (16, 43) that allow the engagement of both scissors pieces (1, 2) to be released, and the elastic regulating members (6, 38) are provided on the engaging shaft ( Scissors characterized by being attached to one of the scissors (1, 2) according to 5).