JP2008142381A - Opening/closing tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an epoch-making opening/closing tool having an extremely high commodity value. <P>SOLUTION: The opening/closing tool is obtained by pivoting a pair of half bodies 1, 2 and includes: gripping operation parts 4 provided at one end side of the pivotal attaching part 3; and opening/closing parts 5 which are provided at the other end side of the pivotal attaching part 3 and perform a manual work, such as cutting, pinching, squeezing, and holing, etc., with an opening/closing movement by the opening/closing operation of the gripping operation parts 4. The tool also includes an energizing mechanism 6 for showing opening energization to energize the opening/closing parts 5 in an opening direction. The energizing mechanism 6 is so constituted as to freely change-over an energizing direction so as to exhibit closing energization to energize the opening/closing parts 5 in a closing direction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an opening / closing work tool such as pliers or nippers.

  Conventionally, as a tool for opening and closing tools such as pliers and nippers, a pair of halves are pivotally attached to each other, and a gripping operation part composed of a pair of gripping halves provided at one end of the pivoting part is opened and closed. An opening urging action in which an opening / closing work part composed of a pair of work halves that open and close is provided on the other end side of the pivoting part, and urges the gripping operation part in the opening direction in accordance with the closing movement of the gripping operation part. An open / close work tool provided with an open biasing body that causes the problem has been proposed.

  The opening / closing work tool provided with the opening urging body opens the opening / closing working part of the tip part by releasing the urging force of the opening urging body simply by removing the gripping operation part. Convenient for quickly and repeatedly opening and closing the opening and closing work part, such as picking up and releasing immediately after picking up (if this work is done with an opening and closing work tool of a type that does not have an opening and closing biasing body, gripping operation (The operation in the direction of expanding the part is performed with one half of the body sandwiched between fingers, which is very troublesome and poor in workability.)

  However, the opening / closing work tool provided with the opening urging member is usually in a state in which the blade in the opening / closing work part is exposed due to the structure described above. is there.

  Therefore, conventionally, a type of opening / closing work tool (hereinafter referred to as a conventional example) in which a stopper that holds the closed state of the opening / closing work part is provided in the gripping operation part has been proposed.

  In this conventional example, a ring member that spans and engages with a base end portion of one gripping half is provided slidably on a base end portion of one gripping half.

  However, this conventional example is provided with a separate stopper structure in addition to the open biasing body that has not been proposed so far, so that mass productivity is low and cost is low. There is a problem that it is expensive and may interfere with work.

  The present invention has developed an epoch-making opening / closing work tool having an extremely high commercial value by paying attention to the above-described problems.

  The gist of the present invention will be described with reference to the accompanying drawings.

  A pair of halves 1 and 2 are pivotally attached to each other, and manual operations such as cutting, pinching, squeezing and punching are performed by opening and closing the gripping operation part 4 provided on one end side of the pivoting part 3. In the opening / closing work tool provided with the opening / closing work part 5 on the other end side of the pivotally mounted part 3, the opening / closing work part 5 is provided with a biasing mechanism 6 that exerts an opening bias that biases the opening / closing work part 5 in the opening direction. The urging mechanism 6 relates to an opening / closing work tool characterized in that the urging direction can be switched so as to exert a closing urging force that urges the opening / closing operation part 5 in the closing direction.

  The urging mechanism 6 has an open urging state in which the open / close working portion 5 in the closed state is urged in the opening direction until reaching an open position necessary for manual operations such as cutting, clamping, squeezing, and punching. 2. The opening / closing work tool according to claim 1, wherein the opening / closing work part 5 is configured to be switchable between a closing biasing state in which the opening / closing work part 5 is urged in the closing direction to hold the opening / closing work part 5 in the closed state. It is concerned.

  In addition, there is provided a biasing body 7 that generates a return bias upon deformation in one direction and the other direction opposite to the one direction, and a return that occurs when the biasing body 7 is deformed in one direction. The biasing exerts as an opening bias for biasing the opening / closing work part 5 in the opening direction, and the return bias generated when the opening / closing work part 5 is deformed in the other direction causes the opening / closing work part 5 to be biased in the closing direction. The opening / closing work tool according to any one of claims 1 and 2, wherein the biasing mechanism 6 is provided so as to be exerted as a bias and the biasing direction is switchable. is there.

  Further, as the urging body 7, a urging body 7 that generates a return urging upon bending deformation in one direction or the other direction is adopted, and the urging body 7 is switched by changing the direction of bending deformation. 4. The opening / closing work tool according to claim 3, wherein the biasing mechanism is configured so that the biasing direction can be switched.

  The biasing mechanism 6 is pressed and biased by a biasing body 7 projecting from one gripping half 1a of the pair of gripping halves 1a and 2a constituting the gripping operation unit 4. The receiving body 8 is provided on the other gripping half 2a, and the abutting position of the urging body 7 with respect to the receiving body 8 is changed to change the bending direction of the urging body 7 by switching the direction. The opening / closing work tool according to any one of claims 1 to 4, wherein the biasing mechanism 6 is configured so that a biasing direction is switched.

  The biasing mechanism 6 is pressed and biased by a biasing body 7 projecting from one gripping half 1a of the pair of gripping halves 1a and 2a constituting the gripping operation unit 4. The receiving body 8 is provided on the other gripping half 2a, and the urging body 7 is moved in one direction or the other direction from the protruding position P protruding from the one gripping half 1a. In the case of bending deformation, it is configured to generate a return bias to the projecting position P, and in the operation of the grip operation part 4 that closes the opening / closing work part 5, a receiver provided on the other grip half 2a When one side portion 8a of 8 is pressed against the urging body 7 to bend and deform the urging body 7 in one direction from the protruding position P, the opening / closing operation portion 5 is urged in the opening direction. In the direction opposite to the bending deformation direction in which this urging force is generated, the urging force is applied in the other direction from the protruding position P. When the body 7 is bent and deformed and the urging body 7 is brought into pressure contact with the other side portion 8b of the receiving body 8, a closing urging force for maintaining the closing state of the opening / closing operation portion 5 is generated. The opening / closing work tool according to any one of claims 1 to 5.

  Further, a bent portion 9 is provided at the distal end portion of the urging body 7, and the bent outer surface 9 a of the bent portion 9 is operated on the gripping operation portion 4 that closes the opening / closing operation portion 5. The curved inner surface 9b of the bent portion 9 is urged in the other direction from the projecting position P in a direction opposite to the bending deformation direction causing the opening urging. The opening / closing work tool according to any one of claims 5 and 6, wherein the body 7 is bent and deformed so as to be in a position in pressure contact with the other side portion 8b of the receiving body 8.

  Further, the arrangement portion 10a provided on the grip material 10 fitted to the rod-shaped material 14 constituting the one gripping half 1a or the rod-shaped material 14 and the grip material 10 fitted to the rod-shaped material 14 are provided. The open / close work tool according to any one of claims 5 to 7, wherein the biasing mechanism 6 is configured by disposing a base end portion of a long biasing body 7 therebetween. It is.

  Further, as the opening / closing operation portion 5, an opening / closing operation portion 5 provided with blade portions 11, 12 at the inner edges of the respective work halves 1b, 2b is adopted. The opening / closing work tool described in 1.

  Since the present invention is configured as described above, for example, it is very convenient because it has an opening urging function when in use, and a good storage state can be obtained because it has a closing urging function when not in use, Since the opening bias for biasing the opening / closing work part in the opening direction and the closing bias for keeping the closing state of the opening / closing work part are combined in one structure, the above-described conventional example is used. It will be an epoch-making opening and closing work tool with extremely high product value, such as being able to resolve the problems it has.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention that are considered suitable (how to carry out the invention) will be briefly described with reference to the drawings, illustrating the operation of the present invention.

  The urging mechanism 6 according to the present invention is an open urging state in which, for example, the open / close working portion 5 in the closed state is urged in the opening direction until reaching an open position necessary for manual operations such as cutting, clamping, pressing, and punching And the closing biasing state in which the opening / closing operation unit 5 is biased in the closing direction to hold the opening / closing operation unit 5 in the closed state.

  Therefore, it is very convenient because it has an opening urging function when used, for example, and it has a closing urging function when it is not used, so that a good storage state can be obtained. The urging force for urging and the urging force for maintaining the closed state of the opening / closing work unit 5 are combined into a single structure, resulting in a very efficient structure.

  Specific embodiments of the present invention will be described with reference to the drawings.

  In the present embodiment, a pair of halves 1 and 2 are pivotally attached to each other, and by opening and closing operation of a gripping operation part 4 comprising a pair of gripping halves 1a and 2a provided on one end side of the pivoting part 3. An open / close working part 5 comprising a pair of work halves 1b, 2b that open and close is provided on the other end side of the pivot part 3.

  Specifically, as shown in FIG. 1, an appropriate pair of metal halves 1 and 2 are provided, and the portions near the tips of the halves 1 and 2 are superposed in a crossed state via a shaft member 13. A gripping operation portion 4 comprising a pair of gripping halves 1a covering the grip 10 is provided on a portion (rod-shaped member 9) on the base end side with respect to the pivoting portion 3, and the pivoting portion 3 is provided. Further, an opening / closing operation part 5 comprising a pair of work halves 1b and 2b having blade parts 11 and 12 formed at the front end side portion is provided.

  In the present embodiment, the opening / closing operation part 5 is closed by the closing operation of the gripping operation part 4. However, for example, a structure in which the bent parts of the half-shaped body are pivotally attached. Any structure that exhibits the characteristics of this embodiment, such as a structure in which the opening / closing operation unit 5 is opened by the opening operation of the gripping operation unit 4, may be used as appropriate.

  Further, in this embodiment, the cutting work unit 5 provided with the cutting blades 11 and 12 for cutting the object to be clamped is employed as the opening and closing work part 5, but the flat clamping is provided at the opposing parts of the work halves 1 b and 2 b. A structure that exhibits the characteristics of the present embodiment, such as the use of a clamping work unit 5 provided with a surface, may be adopted as appropriate (the opening and closing work referred to in this specification is a clamping work or a cutting work). The closed state in the opening / closing work part 5 is not necessarily the contact between the holding surfaces, and the tool is opened / closed even when there is a gap. If the function as the working unit 5 is exhibited, it is said to be in a closed state.

  Further, in this embodiment, when the gripping operation unit 4 that closes the opening / closing operation unit 5 is operated, an opening bias is generated until the opening / closing operation unit 5 is opened, and the opening / closing operation is performed in the closed state. An urging mechanism 6 that generates a closing urging force that maintains the closing state of the working unit 5 is provided. The urging mechanism 6 is configured to be able to switch between the urging directions of the opening urging and the occluding urging described above. Yes. That is, a biasing body 7 that generates a return bias when deforming in one direction and the other direction opposite to the one direction is provided, and a return that occurs when the biasing body 7 is deformed in one direction. The biasing exerts as an opening bias for biasing the opening / closing work part 5 in the opening direction, and the return bias generated when the opening / closing work part 5 is deformed in the other direction causes the opening / closing work part 5 to be biased in the closing direction. The urging mechanism 6 is provided so as to exert as a urging force, and the urging direction is switchable.

  Specifically, as shown in FIG. 1, a biasing body 7 protruding toward the other gripping half 2 a is provided on one gripping half 1 a constituting the gripping operation unit 4, and this biasing is performed. The body 7 is configured to generate a return biasing force from the predetermined projecting position P projecting from the one gripping half 1a to the projecting position P during bending deformation (bending deformation) in one direction or the other direction. When the gripping operation unit 4 that closes the opening / closing operation unit 5 is operated, one side 8a of the receiving body 8 provided on the other gripping half 2a is pressed against the biasing body 7 and attached thereto. When the biasing body 7 is bent and deformed in one direction from the projecting position P, an opening biasing (arrow S1 in FIG. 1) that biases until the opening / closing operation part 5 is in an open state is generated. The urging body 7 is bent and deformed in the opposite direction from the protruding position P in a direction opposite to the bending deformation direction in which the urging is generated. Thus, when the biasing body 7 is brought into pressure contact with the other side portion 8b of the receiving body 8, a closing biasing force (arrow S2 in FIG. 1) for maintaining the closing state of the opening / closing operation portion 5 is generated. Yes.

  The release bias S1 in the biasing mechanism 6 biases the gripping halves 1a and 2a related to the gripping operation part 4 in the opening direction, thereby opening the work halves 1b and 2b related to the opening / closing work part 5 in the opening direction. The closing biasing S2 biases the gripping halves 1a and 2a related to the gripping operation part 4 in the closing direction, thereby suspending the work halves 1b and 2b related to the opening / closing work part 5. It is energized in the closing direction.

  As shown in FIG. 1, the urging member 7 has a long spring material 7 attached to a disposing portion 10a provided on a grip member 10 fitted on a rod-like member 9 constituting one gripping half 1a. The urging body 7 is configured by disposing a base end portion.

  Further, the urging body 7 is provided with a bent portion 9 at the tip thereof, and the bent outer surface 9a of the bent portion 9 is operated by the grip operation portion 4 for closing the opening / closing operation portion 5 when the other gripping portion 9 is operated. The side surface 8a of the receiving body 8 provided on the holding half 2a is in a pressure-contact portion, and the bending inner surface 9b of the bending portion 9 is bent and deformed in the direction opposite to the bending deformation direction that generates the opening urging force. By doing so, it is set as the part which press-contacts to the other side part 8b of the receiving body 8.

  Further, the urging body 7 has an operation portion 7a projecting from the tip thereof, and a bending deformation operation of the urging body 7 can be performed by placing a finger on the operation portion 7a.

  As shown in FIG. 1, the receiving body 8 is configured such that a protrusion 8 protrudes from the inner surface of the other gripping half 2 a and the inner surface of the gripping half 1 a. Yes. The receiving body 8 may be integrated or separate.

  The operation of the tool having the above configuration will be described.

  When the tool is used, when the gripping halves 1a and 2a related to the gripping operation unit 4 are closed to close the opening / closing work unit 5, one side of the receiving body 8 provided on the other gripping half 2a. When the portion 8a is pressed against the urging body 7 to bend and deform the urging body 7 in one direction, an opening urging S1 is generated that urges until the opening / closing operation portion 5 is in an open state (see FIG. 3). When the force for operating the grip operation unit 4 is loosened, the opening / closing work unit 5 is opened by the opening bias S1 generated by the biasing member 7 and the receiving member 8 (see FIG. 2). Therefore, it is possible to quickly and repeatedly open and close the opening / closing operation unit 5 such as cutting the object to be cut and releasing immediately, and cutting and releasing immediately.

  When the tool is not used, the biasing body 7 is bent and deformed in the opposite direction to the direction of bending deformation that generates the open bias S1, and the biasing body 7 is pressed against the other side 8b of the receiving body 8. At this time, a closing urging S2 for holding the closing state of the opening / closing work unit 5 is generated (see FIGS. 4 and 5).

  Since this embodiment is configured as described above, it is very convenient because it has an opening biasing function when used, for example, and it has a closing biasing function when not in use, so that a good storage state can be obtained. The urging force for urging the opening / closing operation portion 5 in the opening direction and the urging force for maintaining the closed state of the opening / closing operation portion 5 are combined into a single structure.

  Note that the present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.

It is a front view which shows a present Example. It is operation | movement explanatory drawing of a present Example. It is operation | movement explanatory drawing of a present Example. It is a perspective view which shows a present Example. It is operation | movement explanatory drawing of the principal part which concerns on a present Example.

Explanation of symbols

P projecting position 1 half 1a gripping half 2half 2a gripping half 3 pivoting part 4 gripping operation part 5 opening / closing work part 6 biasing mechanism 7 biasing body 8 receiving body 8a one side 8b other side Part 9 Bent part 9a Bent outer surface 9b Bent inner surface
10 Grip material
10a Arrangement part

Claims (9)

  A pair of halves are pivotally attached, and an opening / closing operation part for performing manual operations such as cutting, clamping, squeezing, drilling, etc. by opening / closing operation of a gripping operation part provided at one end side of the pivoting part The opening / closing operation tool provided on the other end side of the pivotally attaching portion includes an urging mechanism that exerts an opening urging force that urges the opening / closing operation portion in an opening direction, and the urging mechanism includes an opening / closing operation portion. An opening / closing work tool characterized in that the biasing direction can be switched so as to exert a closing biasing biasing in the closing direction.   The urging mechanism includes an open urging state in which the open / close operation unit in the closed state is urged in an open direction until reaching an open position necessary for manual operations such as cutting, clamping, squeezing, and punching, and the open / close operation. The opening / closing work tool according to claim 1, wherein the opening / closing work tool is configured to be switchable between a closing biasing state in which the opening / closing work part is held in a closed state by biasing the part in the closing direction.   A biasing body that generates a return bias when deforming in one direction and the other direction opposite to the one direction, and the return bias generated when the biasing body is deformed in one direction is In addition to exhibiting as an opening bias that biases the opening / closing work part in the opening direction, the return bias generated when the opening / closing work part is deformed in the other direction is exhibited as a closing bias that biases the opening / closing work part in the closing direction. The opening / closing work tool according to claim 1, wherein the biasing mechanism is provided so that the biasing direction is switchable.   As the urging body, a urging body that generates return urging upon bending deformation in one direction or the other direction is adopted, and the urging direction can be switched by switching the direction of bending deformation of the urging body. The opening / closing work tool according to claim 3, wherein the biasing mechanism is configured to be provided as follows.   The biasing mechanism includes a receiving body pressed and biased by a biasing body protruding from one gripping half of the pair of gripping halves constituting the gripping operation unit. The urging mechanism is configured so that the urging direction is switched by changing the abutting position of the urging body with respect to the receiving body and switching the direction in which the urging body is bent and deformed. The opening / closing work tool according to any one of claims 1 to 4, wherein the opening / closing work tool is provided.   The biasing mechanism includes a receiving body pressed and biased by a biasing body protruding from one gripping half of the pair of gripping halves constituting the gripping operation unit. The urging body is configured to be provided with an urging body, and the urging body returns the urging force to the projecting position P from the projecting position P projecting from the one gripping half to the projecting position P in a bending deformation in one direction or the other direction. In the operation of the gripping operation portion that closes the opening / closing operation portion, one side portion of the receiving body provided in the other gripping half is pressed against the biasing body and the biasing When the body is bent and deformed in one direction from the protruding position P, an opening urging force is generated to urge the opening / closing working part in the opening direction, and the protruding position is set in a direction opposite to the bending deformation direction that generates the opening urging force. The urging body was bent and deformed in the other direction from P, and the urging body was pressed against the other side of the receiving body. , Closing tool as defined in any one of claims 1 to 5, characterized in that obstruction urging to hold the closed state of the opening and closing operations unit is configured to generate.   A bent portion is provided at the tip of the biasing body, and one side of the receiving body provided on the other gripping half body when the gripping operation portion for closing the opening / closing operation portion is operated with the bending outer surface of the bending portion. The other side part of the receiver is formed by bending the urging body in the other direction from the projecting position P, with the bent inner surface of the bent part as the part where the part is pressed against, and in the direction opposite to the bending deformation direction causing the opening urging. The opening / closing work tool according to any one of claims 5 and 6, wherein the opening / closing work tool is a portion in pressure contact with the contact.   A long urging body is provided between an arrangement portion provided on the grip material fitted to the rod-shaped material constituting the one gripping half or the grip material fitted to the rod-shaped material. The opening / closing work tool according to any one of claims 5 to 7, wherein a base end portion is disposed to constitute the biasing mechanism.   The opening / closing work tool according to any one of claims 1 to 8, wherein an opening / closing work part in which a blade part is provided at an inner edge of each work half body is adopted as the opening / closing work part.

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