JP2008006522A - Opening and closing mechanism of both grip handles in manual sharp-edged tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify the structure of an opening and closing mechanism of both grip handles in a manual sharp-edged tool such as scissors. <P>SOLUTION: This mechanism is provided with a magnetic force switching operation means 12 constituted of a first switching part 13 having a magnet 15 and a second switching part 14 having a magnet 19 between the first grip handle 4 and the second grip handle 5 of the scissors. The first switching part 13 is fixed to an inside edge part 11 of a finger hook ring 10 of the first grip handle 4. The second switching part 14 is rotatably supported by the inside edge part 11 of the finger hook ring 10 of the second grip handle 5, falls down in the finger hook ring 10 of the second grip handle 5 at a suction and rotation position P, and stands up from the inside of the finger hook ring 10 of the second grip handle 5 at a repulsion and rotation position. The magnetic force switching operation means 12 is switched into a suction state R sucked by the magnets 15 and 19 so that closed states of the first grip handle 4 and the second grip handle 5 may be held at the suction and rotation position P of the second switching part 14 and a repulsion state repelled by the magnets 15 and 19 so that the first grip handle 4 and the second grip handle 5 may be opened from the closed states at the repulsion and rotation position of the second switching part 14. As a result, holding between the first grip handle 4 and the second grip handle 5 and opening assistance accompanying holding and releasing are performed under a simple structure. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a mechanism for opening and closing both grip handles in a manual instrument such as a scissors.

  Conventionally, in a manual instrument such as a scissors, both gripping handles are held by releasing the holding handles held against the elastic force of the spring provided between both gripping handles and opening them with the elastic force of the springs. Proposals have been made to support opening and closing operations.

  However, in addition to the spring for opening both gripping handles, it is necessary to provide a locking means for holding both gripping handles in a closed state against the elastic force of the springs. Was complicated.

  An object of the present invention is to simplify the structure of an opening / closing mechanism for both grips in a manual instrument such as a scissors.

The present invention will be described with reference to the drawings of the embodiments described later (the first embodiment shown in FIGS. 1 to 3 and the second embodiment shown in FIG. 4).
The opening / closing mechanism for both grips of the manual organ according to the invention of claim 1 corresponds to the first and second embodiments and is configured as follows.

  In this manual instrument, the first grip handle 4 and the second grip handle 5 are opened and closed to open and close the first function portion 6 and the second function portion 7, and the first grip handle 4 and the second grip handle 5. Is provided with magnetic force switching operation means 12. The magnetic force switching operation means 12 includes a suction state R in which the first grip handle 4 and the second grip handle 5 are attracted by a magnetic force so as to maintain a closed state in which the first grip handle 4 and the second grip handle 5 are closed. 5 can be switched from the closed state to the repulsive state S repelled by the magnetic force so as to open each other.

  According to the first aspect of the present invention, by switching the magnetic force switching operation means 12, the holding between the first gripping handle 4 and the second gripping handle 5 and the opening assistance associated with the release of the holding have a simple structure using magnetic force. And can be done.

  In the invention of claim 2 (corresponding to the first and second embodiments) based on the invention of claim 1, the magnetic force switching operation means 12 is a first grip handle 4 and a magnetic force (for example, attached to the first grip handle 4). A first switching portion 13 having a magnetic force of the magnet 15) and a second switching portion 14 having a magnetic force (for example, the magnetic force of the magnet 19 attached to the second gripping handle 5) in the second gripping handle 5. The one switching unit 13 and the second switching unit 14 move relative to each other to take the suction state R and the repulsion state S. In this case, some or all of the first switching unit 13 and the second switching unit 14 can be magnets. According to the second aspect of the present invention, the magnetic force switching operation means 12 can have a simple structure.

  In the invention of claim 3 (corresponding to the first and second embodiments) based on the invention of claim 2, the first switching portion 13 having magnetic force is fixed by the first grip handle 4, and the second switching having magnetic force. The part 14 is supported by the second grip handle 5 so as to be movable, and the suction movement position P sucked against the first switching part 13 in the suction state R and the repulsion state S against the first switching part 13. The rebound movement position Q to be taken is taken. According to the third aspect of the present invention, the structure of the first switching portion 13 having magnetic force can be simplified, and the magnetic force switching operation means 12 can be further simplified.

  In the invention of claim 4 (corresponding to the first embodiment) based on the invention of claim 3, the first switching portion 13 opposes the closed state of the first grip handle 4 and the second grip handle 5. Of the inner edge 11, the second grip 14 is fixed to the inner edge 11 of the first grip handle 4, and the second switching portion 14 is first gripped about the rotation center line 20 a at the inner edge 11 of the second grip handle 5. The handle 4 and the second grip handle 5 are supported so as to be rotatable on a plane M perpendicular to the plane L including the opening / closing direction X. In the invention of claim 4, the magnetic force switching operation is performed by providing the first switching portion 13 at the inner edge 11 of the first gripping handle 4 and the second switching portion 14 at the inner edge 11 of the second gripping handle 5. The means 12 can be made even simpler. Moreover, it becomes possible to provide the 2nd switching part 14 which can perform both attraction | suction and repulsion with respect to the 1st switching part 13, the structure of the 2nd switching part 14 is simplified, and magnetic force switching operation means 12 is made still easier. Structure.

Next, technical ideas other than the claims will be described with reference to the reference numerals in the drawings of the embodiments.
In a fifth invention based on the invention of claim 4 (corresponding to the first embodiment), the first grip handle 4 has a finger ring 10 including an inner edge 11, and the second grip handle 5 is an inner side. The second hook 14 includes the finger ring 10 including the edge 11, and the second switching unit 14 falls into the finger ring 10 of the second grip 5 at the suction rotation position P, and the finger ring of the second grip 5. The finger F placed in 10 stands up from the finger ring 10 of the second gripping handle 5 at the repulsion rotation position Q. In 5th invention, the 2nd switching part 14 can be operated by taking in and out of the finger F with respect to the finger ring 10 of the 2nd holding handle 5, and usability improves.

  In the sixth invention based on the fifth invention (corresponding to the first embodiment), the finger grip ring 10 of the second gripping handle 5 is closed with the first gripping handle 4 and the second gripping handle 5 closed. The second switching part 14 lying down in the finger ring 10 of the second gripping handle 5 is pushed by the inserted finger F to stand up from the finger ring 10 of the second gripping pattern 5, and the first switching part 13 and the second switching unit 14, the first switching unit 13 and the second switching unit 14 take the repulsive state S, and the second gripping handle 5 When the finger F is put into the finger grip ring 10 and the first gripping handle 4 and the second gripping handle 5 are closed to each other and the finger F is removed from the finger grip ring 10 of the second gripping handle 5, Due to the attractive magnetic force between the second switching part 14 and the second switching part 14 standing up from the finger ring 10 of the second grip 5, the second switch part 14 falls into the finger ring 10 of the second grip 5, Suction times A first switching unit 13 becomes the position P and the second switching unit 14 takes the suction state R. In the sixth aspect of the invention, the magnetic force switching operation means 12 is repelled from the suction state R simply by putting the finger F into the finger ring 10 of the second gripping handle 5 in the closed state of the first gripping handle 4 and the second gripping handle 5. When the first grip 4 and the second grip 5 are closed to each other, the magnetic force switching operation means 12 is in a repulsive state simply by removing the finger F put in the finger ring 10 of the second grip 5 Since the suction state R changes from S, the usability can be improved.

  In the seventh invention (corresponding to the first embodiment) based on the fifth invention or the sixth invention (corresponding to the first embodiment), the inner edge 11 of the finger ring 10 of the second gripping handle 5 is oppositely rotated. A central shaft portion 20 and a second switching portion 14 that is fitted between the pivot center shaft portions 20 and supported so as to be pivotable about a pivot center line 20a between the pivot center shaft portions 20; Consists of. In the seventh invention, by using the second switching portion 14 as a part of the finger ring 10 of the second gripping handle 5, the magnetic force switching operation means 12 can be further simplified.

  In an eighth invention based on the seventh invention (corresponding to the first embodiment), the second switching portion 14 is protruded from the base portion 17 fitted between the rotation center shaft portions 20 and the base portion 17. And a finger holder 18 to be used. In the eighth invention, since the second gripping handle 5 has the finger-holding portion 18, it becomes easier to operate the second switching portion 14 when the finger F is put in and out of the finger ring 10 of the second gripping handle 5. Usability can be improved.

  In the ninth invention based on the eighth invention (corresponding to the first embodiment), both rotation center shaft portions 20 are inserted into the base portion 17 of the second switching portion 14. In 9th invention, the rotation support structure of the 2nd switching part 14 can be simplified.

  A second invention according to a tenth invention (corresponding to the first embodiment) based on the invention of claim 4, the fifth invention, the sixth invention, the seventh invention, the eighth invention or the ninth invention. In the switching unit 14, the magnet 19 is embedded in the case 16 and concealed. In the tenth invention, the feel to the second switching unit 14 can be improved.

  In an eleventh invention based on the invention of claim 3 (corresponding to the second embodiment), the first switching portion 13 is an inner side facing each other in the closed state of the first grip handle 4 and the second grip handle 5. The edge 11 is fixed to the inner edge 11 of the first grip handle 4, and the second switching portion 14 extends along a plane including the opening / closing direction X between the first grip handle 4 and the second grip handle 5. It is supported movably. In the eleventh aspect of the invention, by providing the first switching portion 13 at the inner edge portion 11 of the first gripping handle 4 and the second switching portion 14 at the inner edge portion 11 of the second gripping handle 5, magnetic force switching operation means. 12 can be made a simpler structure.

  In a twelfth invention based on the eleventh invention (corresponding to the second embodiment), the first grip handle 4 has a finger ring 10 including an inner edge portion 11, and the second grip handle 5 is an inner edge. The finger grip ring 10 including the portion 11 is included, and the second grip handle 5 is inserted by the finger F placed in the finger grip ring 10 of the second grip handle 5 in the closed state of the first grip handle 4 and the second grip handle 5. The second switching unit 14 is pushed in the finger ring 10 to reach the repulsion movement position Q, and the first switching unit 13 and the second switching unit 14 take the repulsion state S. In the twelfth invention, the magnetic force switching operation means 12 is repelled from the attracted state R simply by putting the finger F into the finger ring 10 of the second gripping handle 5 in the closed state of the first gripping handle 4 and the second gripping handle 5. Since it becomes the state S, usability can be improved.

  The invention of any one of claims 1 to 4, the fifth invention, the sixth invention, the seventh invention, the eighth invention, the ninth invention, the tenth invention or the eleventh invention In the thirteenth invention (corresponding to the first and second embodiments) based on the present invention or the twelfth invention, the manual instrument is a hook and opens and closes the first hook piece 1 and the second hook piece 2 The first gripping handle 4 is provided on the first collar piece 1 on the base end side with respect to the opening / closing center section 3 and the second gripping handle 5 is provided on the second collar piece 2. And a blade body 6 as the first functional part is provided on the first collar piece 1 on the tip side of the opening / closing center part 3 and a blade body 7 as the second functional part is provided on the second collar piece 2. Yes. In the thirteenth invention, the invention of any one of claims 1 to 4, the fifth invention, the sixth invention, the seventh invention, the eighth invention, the ninth invention or the The effects of the tenth invention, the eleventh invention or the twelfth invention can be exhibited in the bag.

  The present invention has a simple structure for holding between the first gripping handle 4 and the second gripping handle 5 and assisting in opening when the holding handle is released by utilizing the attraction and repulsion by magnetic force in a manual instrument such as a scissors. Can be done with.

First, the bag according to the first embodiment of the present invention will be described with reference to FIGS.
1 (a) and 2 (a), the first hook piece 1 and the second hook piece 2 intersect in an X shape and are supported rotatably by the opening / closing central portion 3. Has been. On the base end side with respect to the opening / closing central portion 3, the first gripping handle 4 is provided on the first hook piece 1, and the second gripping handle 5 is provided on the second hook piece 2. A blade body 6 as a first functional part is provided on the first collar piece 1 and a blade body 7 as a second functional part is provided on the second collar piece 2 on the distal end side of the opening / closing center part 3. It has been. In the first grip handle 4 and the second grip handle 5, a plastic grip portion 9 is attached to a support plate 8 extending from the blade bodies 6 and 7. These grips 9 are provided with a finger ring 10 having a finger insertion hole 10a. Among these inner gripping portions 9, the inner edge portions that are part of the finger ring 10 of the first grip handle 4 among the inner edge portions 11 that face each other in the closed state of the first grip handle 4 and the second grip handle 5. 11 includes a first switching unit 13 serving as a magnetic force switching operation unit 12, and a second switching unit 14 serving as a magnetic force switching operation unit 12 is provided on the inner edge portion 11 that is a part of the finger ring 10 of the second gripping handle 5. Is provided.

  As shown in FIGS. 1B and 1C and FIGS. 2B and 2C, in the first switching unit 13, a magnet 15 is embedded and fixed, and a magnetic surface 15a of the magnet 15 is a second surface. The grip handle 5 is exposed facing the inner edge 11 of the finger ring 10. In the second switching portion 14, a plastic case 16 formed by overlapping a pair of covers 16 a is composed of a base portion 17 in which a magnet 19 is embedded and concealed, and a finger protruding from the base portion 17. Part 18. Both rotation center axes projecting opposite to each other on both sides in the direction along the inner edge 11 of the finger ring 10 of the first gripping handle 4 in the closed state of the first gripping handle 4 and the second gripping handle 5 The portion 20 is inserted into the base portion 17, and the base portion 17 is inserted between both the rotation center shaft portions 20. The second switching portion 14 connects the rotation center shaft portions 20 on a plane M orthogonal to a plane L including the opening / closing direction X between the first grip handle 4 and the second grip handle 5. It is supported so as to be pivotable about the pivot center line 20a, and with the pivot, it can enter into the finger insertion hole 10a of the finger ring 10 of the second gripping handle 5 and fall down, and the finger insertion hole 10a. It can stand up from the inside. At the time of the rotation, the magnetic surface of the magnet 19 of the second switching unit 14 acting on the magnet 15 of the first switching unit 13 changes, so that the magnet 15 of the first switching unit 13 and the magnet 19 of the second switching unit 14 During this period, an attractive magnetic force or a repulsive magnetic force is generated.

  Now, as shown in FIGS. 1A, 1B, and 1C, in the closed state in which the first grip handle 4 and the second grip handle 5 are closed to each other, the second switching portion 14 is connected to the second grip handle 5. The second switching part 14 is attracted and rotated by the attractive magnetic force between the magnet 15 of the first switching part 13 and the magnet 19 of the second switching part 14 after entering the finger insertion hole 10a of the finger ring 10 and falling down. At the position P, the first switching unit 13 and the second switching unit 14 take the suction state R. Therefore, the first grip handle 4 and the second grip handle 5 are held in a closed state.

  When the finger F is inserted into the finger insertion hole 10a of the finger ring 10 of the second gripping handle 5 in this suction state R, the second switching portion 14 is pushed by the finger F and the finger ring 10 of the second gripping pattern 5 is pressed. Projecting from the finger insertion hole 10a. Immediately after that, as shown in FIGS. 2A, 2B and 2C, the second switching unit is caused by the repulsive magnetic force between the magnet 15 of the first switching unit 13 and the magnet 19 of the second switching unit 14. 14 stops from the suction rotation position P to the repulsion rotation position Q, and the first switching unit 13 and the second switching unit 14 take the repulsion state S. Therefore, the first grip handle 4 and the second grip handle 5 are slightly opened from each other. In use, the first grip handle 4 and the second grip handle 5 are opened and closed together with the blade bodies 6 and 7 as shown in FIGS.

  When the first gripping handle 4 and the second gripping handle 5 are closed to each other, immediately before or after the second switching portion 14 contacts the first switching portion 13, the finger ring 10 of the second gripping handle 5 When the finger F is removed from the finger insertion hole 10a, the second switching unit 14 is rotated from the repulsion rotation position Q by the attractive magnetic force between the magnet 15 of the first switching unit 13 and the magnet 19 of the second switching unit 14. The first switching unit 13 and the second switching unit 14 take the suction state R after stopping at the moving position P.

Next, a bag according to the second embodiment of the present invention will be described with reference to FIG. 4 focusing on differences from the first embodiment.
At the inner edge portion 11 of the finger grip ring 10 of the second grip handle 5, the second switching unit 14 is in a closed state between the first grip handle 4 and the second grip handle 5 and the finger ring 10 of the first grip handle 4. In the finger insertion hole 10a of the finger ring 10 that is supported so as to be movable on a plane including the opening / closing direction X between the first grip handle 4 and the second grip handle 5 in the direction along the inner edge 11 of the finger. I'm stuck in. The magnet 19 embedded in the second switching unit 14 includes a pair of magnets 19a and 19b arranged in parallel on both sides in the moving direction of the second switching unit 14.

  Now, as shown in FIG. 4A, in the closed state in which the first grip handle 4 and the second grip handle 5 are closed, the magnet 15 of the first switching portion 13 and the magnet 19a of the second switching portion 14 The second switching unit 14 stops at the suction movement position P and the first switching unit 13 and the second switching unit 14 take the suction state R. Therefore, the first grip handle 4 and the second grip handle 5 are held in a closed state.

  When the finger F is inserted into the finger insertion hole 10a of the finger ring 10 of the second gripping handle 5 in this suction state R, the second switching portion 14 is pushed by the finger F, and the suction movement position P changes to the repulsion movement position Q. It moves and stops, and a repulsive magnetic force is generated between the magnet 15 of the first switching unit 13 and the magnet 19b of the second switching unit 14. Immediately after that, as shown in FIG. 4B, the first switching unit 13 and the second switching unit 14 take the repulsive state S by the repulsive magnetic force. Therefore, the first grip handle 4 and the second grip handle 5 are slightly opened from each other.

  When the first grip handle 4 and the second grip handle 5 are closed, the second switching portion 14 is moved from the repulsion movement position Q immediately before or after the second switching portion 14 contacts the first switching portion 13. When moved to the suction movement position P and stopped, the first switching unit 13 and the second switching unit 14 are caused by the attractive magnetic force between the magnet 15 of the first switching unit 13 and the magnet 19a of the second switching unit 14. Take suction state R.

  As another example of the second embodiment, the second switching unit 14 is changed to the first switching unit 13 in an arbitrary direction on a plane including the opening / closing direction X between the first gripping handle 4 and the second gripping handle 5. Alternatively, the second switching unit 14 may move between the suction movement position P and the repulsion movement position Q.

  Moreover, as a manual instrument that opens and closes the first gripping handle and the second gripping handle to open and close the first function portion and the second function portion, not only cutting hand tools such as scissors but also handheld tools such as pliers and pliers A grip can be used.

(A) is a top view which shows a closed state in the scissors concerning 1st Embodiment, (b) is a partial notch partial top view of (a), (c) is AA of (a). It is a line expanded sectional view. (A) is a top view which shows the state which begins to open in the scissors concerning 1st Embodiment, (b) is a partially notched partial top view of (a), (c) is B of (a) FIG. (A) is a top view which shows an open state in the scissors concerning 1st Embodiment, (b) is a top view which shows a closed state similarly. (A) is a top view which shows a closed state in the scissors concerning 2nd Embodiment, (b) is a top view which shows the state which begins to open in the scissors concerning 2nd Embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 4 ... 1st grip handle, 5 ... 2nd grip handle, 6 ... Blade body as 1st function part, 7 ... Blade body as 2nd function part, 10 ... Finger hook ring, 11 ... Inner edge part, 12 ... Magnetic switching operation means, 13 ... first switching unit, 14 ... second switching unit, 15, 19 ... magnet, 20a ... rotation center line, R ... suction state, S ... repulsion state, P ... suction movement position, Q ... Repulsion movement position, X ... opening / closing direction, L, M ... face, F ... finger.

Claims (4)

In a manual instrument that opens and closes the first gripping handle and the second gripping handle to open and close the first function portion and the second function portion, the first gripping handle and the second gripping handle are held closed. Magnetic force switching operation means capable of switching between a suction state attracted by magnetic force and a repulsive state repelled by magnetic force so that the first grip handle and the second grip handle are opened from their closed states to each other A mechanism for opening and closing both grips in a manual instrument, characterized by The magnetic force switching operation means includes a first switching unit having a magnetic force in the first grip handle and a second switching unit having a magnetic force in the second grip handle, and the first switching unit and the second switching unit are relatively 2. The opening / closing movement mechanism for both grips in a manual organ according to claim 1, wherein the mechanism is moved to take the suction state and the repulsion state. The first switching unit having magnetic force is fixed by the first gripping handle, and the second switching unit having magnetic force is supported by the second gripping handle so as to be movable, and is sucked to the first switching unit in the suction state. The mechanism for opening and closing both grips in a manual instrument according to claim 2, wherein a moving position and a repulsive moving position repelled with respect to the first switching portion in the repulsive state are taken. The first switching unit is fixed to the inner edge of the first gripping handle among the inner edges facing each other in the closed state of the first gripping handle and the second gripping handle, and the second switching unit is fixed to the second gripping handle. Characterized in that it is rotatably supported on a plane orthogonal to the plane including the opening / closing direction between the first gripping handle and the second gripping handle, with the rotation center line at the inner edge of the first gripping handle as the center. The opening / closing movement mechanism of both grips in the manual tokener according to claim 3.

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