JPH074454B2 - Folding scissors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to scissors capable of folding a handle when not in use.

[Prior Art] Conventionally, as scissors of this type, there is, for example, one shown in FIGS. 30 to 32. In this scissors, both blades 26 are supported by an opening / closing center shaft 27 so as to be openable and closable in the X arrow direction, and a handle 28 is attached to a base end portion of both blades 26 in the Y arrow direction which is the same as the opening / closing direction X of both blades 26. Is rotatably connected to the support pin 29. Then, when both handles 28 are rotated in the Y arrow direction from the use state shown in FIG. 30, both handles 28 are folded with respect to the blade 26 as shown in FIG.

In the case of such scissors, since the opening / closing direction X when used and the rotation direction Y when folded are the same, it is necessary to regulate the rotation of the handle 28 with respect to the blade 26 by some means during use. In this example, a presser foot 30 is provided on the handle 28, and the tip of the presser foot 30 presses the vicinity of the support pin 29 of the blade 26 to regulate the rotation.

[Problems to be Solved by the Invention] However, since the presser foot 30 is required to have a strong elastic force capable of withstanding the opening and closing operation of the scissors during use, the presser foot 30 resists the elastic force of the presser foot 30 when folding. It was difficult to fold because it was necessary to rotate the handle 28 with great force.

Furthermore, it is dangerous to hold the blade 26 by hand when folding the scissors, so if you try to fold only the handle 28, both blades 26 will inevitably open as shown in Fig. 32, In masturbation 28
There was a risk of injury due to the blade 26 when rotating.

Therefore, by allowing one handle to be used as a case for both blades when folding, it is possible to safely fold, and by devising a way to fold both handles, a grip ring protruding from both handles The present invention is one in which the above are compactly arranged so as not to be bulky.

Configuration of the Invention [Means for Solving the Problems] In order to achieve this object, the present invention is configured to open and close a fixed blade 21 and a movable blade 22 by a central shaft 10 as shown in the drawings of embodiments described later.
The blades 21 and 22 are rotatably supported by the movable handle 22 and the movable handle 7 that is interlocked with the movable handle 22 in the opening / closing direction X on the outside of the fixed handle 1. When the blades 22 and 22 are movably connected to the fixed handle 1 and protruded from the fixed handle 1, the movable blade 22 is moved relative to the fixed handle 1 and the fixed blade 21.
And the movable handle 7 can be opened and closed with each other, while double-edged 21,22
When it is stored in the fixed handle 1, the movable blade 22 and the movable handle 7 cannot be opened and closed with respect to the fixed handle 1 and the fixed blade 21, and the movable handle 7 is moved to be superposed on the outside of the fixed handle 1. At the time of folding, the grip ring 3 protruding from the fixed handle 1 and the grip ring 8 protruding from the movable handle 7 are adjacent to each other on one side of the fixed handle 1.

It is conceivable that the folding direction of the movable handle 7 may be the same direction Y as the opening / closing direction X of the blades 21 and 22. When the rotation direction of the movable handle 7 is specified in this way, interlocking means 14, 9a for interlocking them between the movable blade 22 and the movable handle 7 in the opening / closing direction X of the two blades 21, 22 and their interlocking operation are provided. It is necessary to provide interlocking release means 14, 9b for releasing the movable handle 7 in the same direction Y as the opening / closing direction X of the two blades 21, 22.

[Operation] In a use state in which the fixed blade 21 and the movable blade 22 project from the fixed handle 1 as shown in FIGS. 1 to 3, the movable handle 7 rotates integrally with the movable blade 22 as shown in FIG. It is movable.
The movable handle 7 is superposed on the outer surface of the fixed handle 1, and the grip ring 3 of the fixed handle 1 and the grip ring 8 of the movable handle 7 are located adjacent to each other on both outer sides of the lower portion of the fixed handle 1.

When the movable handle 7 is opened and closed with respect to the fixed handle 1 in the Y arrow direction as shown in FIGS. 8 and 9, the movable blade 22 is also opened and closed with respect to the fixed blade 21 in the X arrow direction.

When folding the movable handle 7 with respect to the fixed handle 1, first the fixed handle 1
When the movable handle 7 is overlapped with the blades 21 and 22 and the movable handle 7 is pulled downward, the fixed blade 21 and the movable blade 22 are fixed to the case 2 of the fixed handle 1.
Immerse into the storage hole 4 of

Then, after the fixed blade 21 and the movable blade 22 are completely housed in the fixed handle 1, the movable handle 7 is pulled further downward as shown in FIGS. It becomes possible to rotate in the Y arrow direction which is the same as the opening / closing direction X of the double blades 21, 22. From that state, when the movable handle 7 is rotated as shown in FIG. 12 and overlapped on the outer surface of the fixed handle 1, the grip ring 3 of the fixed handle 1 and the movable handle 7 are provided on one outer upper and lower portions of the fixed handle 1. It is located adjacent to the grip 8.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 29.

As shown in FIGS. 13 to 16, the fixed handle 1 made of plastic is composed of a case 2 that extends in a slender shape, and a grip ring 3 that projects from the lower part of the case 2. A storage hole 4 is provided in the case 2 so as to extend vertically.
An opening 4a is formed at the upper end thereof. On both front and rear walls of the case 2, guide holes 5 and 6 communicating with the housing hole 4 are provided so as to extend in the vertical direction, and the guide holes 5 and 6 are elongated holes 5a,
6a and circular holes 5b, 6b continuous with the upper end thereof, and the diameters of the circular holes 5b, 6b are wider than the widths of the long holes 5a, 6a.

As shown in FIGS. 17 to 19, a grip ring 8 is projectingly provided on the lower outer side of the movable handle 7 formed of plastic, and a guide hole 9 is transparently provided at its front portion so as to extend in the vertical direction. Has been done. The guide hole 9 is composed of an elongated hole portion 9a and a circular hole portion 9b continuous with the upper end thereof, and the diameter of the circular hole portion 9b is wider than the width of the elongated hole portion 9a.

Opening / closing center shaft 10 made of plastic is shown in Fig. 20 ~
The male pin 11 shown in FIG. 23 and the female pin shown in FIGS. 24 to 27.
It consists of 12 and. With respect to the male pin 11, a locking portion 14 is provided so as to project inside the head portion 13, a stopper hole 15 is provided through the central portion of the locking portion 14, and the stopper is provided on both sides of the stopper hole 15. Department
A pair of locking legs 16 are provided on the projecting portion 14. An operating knob 13a is provided on one side of the head 13 so as to project. Regarding the female pin 12, a shaft portion 18 is provided so as to project inside the head portion 17, a female screw hole 19 is formed in the center portion of the shaft portion 18, and a pair of shaft portions 18 are formed on both sides of the female screw hole 19. Locking recesses 20 are formed.

Support holes 23 and 24 are formed in the base end portion of the fixed blade 21 shown in FIG. 28 and the base end portion of the movable blade 22 shown in FIG. 29, respectively. As shown in FIGS. The blade 21 and the movable blade 22 have an upper end opening 4a in the storage hole 4 in the case 2 of the fixed handle 1.
It is inserted so that it can appear and disappear from. The female pin 12 is inserted into the guide hole 6 of the case 2 of the fixed handle 1, and the shaft portion of the female pin 12 is inserted.
18 is inserted into the support holes 23 and 24 of both blades 21 and 22, and the head 17 of the female pin 12 is located in the guide hole 6.
The movable handle 7 is superposed on the outer surface of the fixed handle 1 so as to face the guide hole 5 thereof. The male pin 11 is a movable handle 7
Of the female pin 12 is inserted into the guide holes 9 of the fixed handle 1 and the engaging legs 16 of the male pin 11 are inserted into the supporting holes 23 and 24 of the blades 21 and 22, respectively. The locking portion 14 of the male pin 11 is positioned in the guide hole 9 of the movable handle 7 and the guide hole 5 of the fixed handle 1 while being locked. A set screw 25 is inserted into the set hole 15 of the male pin 1, and the set screw 25 is screwed into the female screw hole 19 of the female pin 12 to integrally connect the male pin 11 and the female pin 12.

In a use state in which the fixed blade 21 and the movable blade 22 project from the storage hole 4 of the case 2 of the fixed handle 1 as shown in FIGS. 1 to 3, as shown in FIG. The shaft portion 18 of the female pin 12 is rotatably fitted to 23, and
As shown in FIG. 6, a support hole for the movable blade 22 is provided for the shaft portion 18.
24 is locked so as to be integrally rotatable. Further, as shown in FIG. 4, the locking portion 14 of the male pin 11 is engaged with the elongated hole portion 9a of the guide hole 9 of the movable handle 7 so that the movable handle 7 can rotate integrally with the male pin 11. As shown in FIG.
Is located in the circular hole portion 5b of the guide hole 5 of the fixed handle 1
It is rotatable with respect to. The head 17 of the female pin 12
Is located in the circular hole portion 6b of the guide hole 6 of the fixed handle 1
It is rotatable with respect to. On the other hand, the movable handle 7 is superposed on the outer surface of the case 2 of the fixed handle 1, and the grip ring 3 of the fixed handle 1 and the grip ring 8 of the movable handle 7 are positioned adjacent to each other on both outer sides of the lower portion of the case 2.

As shown in FIG. 8 and FIG. 9, when the movable handle 7 is opened and closed in the Y arrow direction with respect to the fixed handle 1, the male pin 11 and the female pin 12 of the opening / closing center shaft 10 are moved integrally with the movable handle 7. Blade 22 is also a fixed blade
Open and close 21 in the direction of the arrow X. The opening of the movable blade 22 is restricted by the movable blade 22 coming into contact with the housing hole 4 of the case 2 of the fixed handle 1.

When folding the movable handle 7 with respect to the fixed handle 1, first the fixed handle 1
When the movable handle 7 is overlapped with the blades 21 and 22 and the movable handle 7 is pulled downward, the locking portion 14 of the male pin 11 of the opening / closing center shaft 10 and the head 17 of the female pin 12 guide the fixed handle 1. The movable handle 7 and the opening / closing center shaft 10 become unrotatable with respect to the fixed handle 1 by being engaged with the long hole portions 5a, 6a of the holes 5, 6, and the opening / closing center shaft 10 guides the guide hole 5, 6 Moves downward along the long holes 5a, 6a of the fixed blade
21 and the movable blade 22 are recessed in the storage hole 4 of the case 2 of the fixed handle 1, and in this state, the two blades 21 and 22 abut in the storage hole 4 so that they cannot be opened and closed. At this time, the movable handle 7 largely projects to the fixed handle 1 below the case 2.

After the fixed blade 21 and the movable blade 22 are completely housed in the case 2, the movable handle 7 is pulled further downward as shown in FIGS. 10 and 11, and the male pin 11 of the opening / closing center shaft 10 is pulled. Locking part
The circular hole portion 9b of the guide hole 9 of the movable handle 7 is fitted to the movable handle 7, and the movable handle 7 can be rotated in the Y arrow direction which is the same as the opening / closing direction X of the two blades 21 and 22 during use.

From that state, the movable handle 7 is rotated as shown in FIG. 12 to be superposed on the outer surface of the case 2 of the fixed handle 1.
The grip ring 3 of the fixed handle 1 and the grip ring 8 of the movable handle 7 are positioned adjacent to each other on the outer upper and lower portions of one side.

In addition, the reverse of the folding procedure detailed above,
The folded state shown in FIG. 12 can be changed to the use state shown in FIG.

In particular, in this embodiment, since the double blades 21 and 22 of the fixed handle 1 are also used as the case 2, not only the case is not required but the structure is simplified. For example, the double blades 21 and 22 are closed to fix the fixed handle. Since the movable handle 7 can be folded with respect to the fixed handle 1 after the blades 21 and 22 have been housed in 1 to make it impossible to open and close each other, it is necessary to hold the fixed handle 1 when folding.
The double-edged blades 21 and 22 will no longer be inadvertently gripped.
It is very safe because there is no risk of injury due to 22.

Further, normally, the grip rings 3 and 8 are formed on the handles 1 and 7 of the scissors, and since the grip rings 3 and 8 are largely projected, the grip rings 3 and 8 are folded when the handles 1 and 7 are folded. It is necessary to make it compact so that 8 does not protrude, but in this embodiment, it is placed outside the case 2 of the fixed handle 1 in the upper space S (see FIG. 10) of the grip ring 3 at the bottom of the case 2. Since the grip ring 8 of the movable handle 7 is located at the time of folding, the space S can be effectively used to compactly fold.

EFFECTS OF THE INVENTION According to the present invention, since the fixed handle 1 is also used as the case 2 of the double-edged blades 21 and 22, not only the case is not required but the structure is simplified. For example, first, the double-edged blades 21 and 22 are closed. Since the movable handle 7 can be folded with respect to the fixed handle 1 after it is housed in the fixed handle 1 and the blades 21 and 22 cannot be opened and closed with respect to each other, it is necessary to hold the fixed handle 1 when folding. , Double-edged
There is no need to inadvertently grip 21,21, and there is no risk of injury due to double blades 21,22, which is very safe.

Further, since it is folded so that the grip ring 8 of the movable handle 7 is located in the space S adjacent to the grip ring 3 of the fixed handle 1 on one outer side of the fixed handle 1, the space S is effectively used. Can be compactly assembled.

[Brief description of drawings]

1 to 29 show an embodiment of the present invention, FIG. 1 is a front view showing a use state of scissors with both blades closed, and FIG. 2 is an enlarged sectional view taken along the line AA of FIG. 3 is an enlarged sectional view taken along the line BB of FIG. 1, FIG. 4 is a sectional view taken along the line CC of FIG. 2, FIG. 5 is a sectional view taken along the line DD of FIG. 2, and FIG. 2 is a sectional view taken along line EE of FIG. 2, FIG. 7 is a sectional view taken along line FF of FIG. 2, FIG. 8 is a front view showing a use state of scissors with both blades open, and FIG. 9 is FIG. Is a partially cutaway front view, FIG. 10 is a front view showing a state in which the movable handle is folded while the two blades are housed in a fixed handle, and FIG. 11 is a partially cutaway front view of FIG. The figure is a front view showing a state in which the movable handle is folded from the state shown in FIG. 10, FIG. 13 is a front view of the fixed handle, FIG. 14 is a sectional view taken along the line GG of FIG. 13, and FIG. 13 is a sectional view taken along the line HH of FIG. 13, FIG. 16 is a rear view of FIG. 13, FIG. 17 is a front view of a movable handle, and FIG. FIG. 7 is a sectional view taken along line I-I of FIG.
19 is a sectional view taken along the line JJ of FIG. 17, FIG. 20 is a front view of the male pin of the opening / closing center shaft, and FIG. 21 is a sectional view taken along the line KK of FIG.
22 is a rear view of FIG. 20, FIG. 23 is a bottom view of FIG. 20, and FIG.
The figure shows the front view of the female pin on the opening / closing center shaft, and Fig. 25 shows L in Fig. 24.
-L sectional view, FIG. 26 is a rear view of FIG. 24, and FIG.
The bottom view of the figure, FIG. 28 is a front view of a fixed blade, FIG. 29 is a front view of a movable blade, and FIGS. 30 to 32 are conventional folding scissors.
FIG. 30 is a plan view showing a use state, FIG. 31 is a plan view showing a folded state, and FIG. 32 is a plan view showing a state in which the folding scissors are opened. 1 …… Fixed handle, 2 …… Case, 3 …… Grip ring, 5,6 ……
Guide holes, 5a, 6a ...... long holes, 5b, 6b ... circular holes, 7 ...
Movable handle, 8 ... Grip ring, 9 ... Guide hole, 9a ... Long hole part (interlocking device), 9b ... Circular hole part (interlocking releasing device), 10 ...
Opening / closing center axis, 14 ... locking part, 18 ... shaft part, 21 ... fixed blade, 22 ... movable blade, 23, 24 ... support holes.

Claims (2)

[Claims] 1. A fixed blade (21) and a movable blade (22) are rotatably supported by an opening / closing center shaft (10), and both blades (21, 22) are supported.
Of the movable handle (22) on the outside of the fixed handle (1) and the movable handle (7) interlocking in the opening and closing direction (X) of the movable blade (22). ) Is pivotally connected to the fixed handle (1) when the two blades (21, 22) are projected from the fixed handle (1), the movable blade (22) and the movable handle ( 7) can be opened and closed with respect to each other, and when the two blades (21, 22) are housed in the fixed handle (1), the movable blade (22) and the movable handle ( 7) cannot be opened / closed, and the movable handle (7) is rotated to overlap the outside of the fixed handle (1), and when this is folded, the movable handle (7) and the grip ring (3) protruding from the fixed handle (1) are movable. Folding scissors, characterized in that a grip ring (8) protruding from the handle (7) is adjacent to each other on one side of the fixed handle (1). 2. Interlocking means (14, 9a) between the movable blade (22) and the movable handle (7) according to claim 1, for interlocking them in the opening and closing direction (X) of both blades (21, 22). ) And interlocking releasing means (14, 9b) for releasing the interlocking movements thereof and enabling the movable handle (7) to rotate in the same direction (Y) as the opening and closing direction (X) of the double blades (21, 22). Foldable scissors characterized by the provision of.