TWI801700B - A tool for cutting or holding an object - Google Patents

Abstract

To provide a tool that can stably transmit force to the active part of the tool (such as cutting broken part or holding part).

The tool has: the first member, which can rotate around the first axis; the second member, which can Rotate around the second axis; and the state change mechanism rotates the first member around the first axis, and rotates the second member around the second axis, thereby making the first member and the second The state of the component changes from the open state to the closed state. The state changing member includes: a threaded rod, a movable block screwed on the threaded rod, a first connecting member connecting the movable block and the first member, and a second connecting member connecting the movable block and the second member. The state of the first member and the second member is changed from an open state to a closed state by moving the movable block along the longitudinal axis of the threaded rod.

Description

A tool for cutting or holding an object

The present invention relates to a tool, in particular to a tool for cutting or holding an object.

Conventionally, there are known tools for cutting or holding an object (for example, cutting tools, holding tools).

Patent Document 1 discloses an electric wire cutting tool as a related technique. In the electric wire cutting tool described in Patent Document 1, a pair of operating rods are opened and closed to cut electric wires.

In the electric wire cutting tool described in Patent Document 1, the electric wire is cut by applying a force to a pair of operation rods. Although it is relatively easy to apply a large force stably to a pair of operating rods in a state where they are moderately separated from each other, it is relatively easy to apply a large force when a pair of operating rods are close to each other. It is relatively difficult to stably act on these operating rods. In the final stage of cutting the electric wire, since the pair of operating rods are close to each other, it is relatively difficult to apply a large force stably to the pair of operating rods in the final stage.

prior art literature patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2014-100007

An object of the present invention is to provide a tool capable of stably transmitting force to an action portion (for example, a cutting portion or a grip portion) of the tool.

The present invention is concerned with the tools shown below.

(1) A tool comprising: a first member including a first action portion capable of contacting an object to be grasped or cut off, and capable of rotating around a first axis; a second member including the second action part that can contact the aforementioned object and can rotate around the second axis; The aforementioned second shaft rotates, thereby changing the state of the aforementioned first member and the aforementioned second member from an open state to a closed state, and the aforementioned state changing mechanism includes: a threaded rod; a movable block screwed to the aforementioned threaded rod; The first connecting member connects the movable block and the first member; and the second connecting member connects the movable block and the second member, and the movable block moves axially along the longitudinal direction of the threaded rod and changing the states of the first member and the second member from the open state to the closed state.

(2) The tool described in (1) above, wherein the first axis and the second axis are coaxial.

(3) The tool described in (1) or (2) above, wherein when the movable block moves toward the direction approaching the first member and the second member, the state of the first member and the second member The state is changed from the aforementioned open state to the aforementioned closed state.

(4) The tool described in any one of the above (1) to (3), wherein the first connecting member has a first base end portion, and the first base end portion can be moved relative to the movable block. The above-mentioned second connecting member has a second base end portion, and the above-mentioned second base end portion is connected in a rotating manner with respect to the aforementioned movable block. From a front view, the above-mentioned first The base end portion is located at a position separated from the threaded rod, and the second base end portion is located at a position separated from the threaded rod.

(5) The tool as described in any one of the above (1) to (4), which is further equipped with a base member that supports the threaded rod in a rotatable manner, and the base member has a remote control function. The first engaging portion engaged with the fixed portion of the tool, the base end portion of the threaded rod has a second engaging portion engaged with the movable portion of the remote operation tool.

(6) The tool described in any one of the above (1) to (5), which further includes: a third member including a third action part that can contact the aforementioned object and can revolve around the aforementioned first axis and rotate; and the fourth member includes a fourth action portion capable of contacting the object, and is capable of rotating around the second axis.

(7) The tool described in any one of the above (1) to (6), wherein the first connecting member is connected to the movable block so as to be rotatable around the third axis, and the first connecting member is 1. The connecting member is connected to the first member so as to be rotatable around a fourth axis, and the second connecting member is connected to the movable block so as to be rotatable around a fifth axis. The second connection member is connected to the second member so as to be rotatable around a sixth axis.

(8) The tool described in any one of the above (1) to (6), wherein the first connecting member includes a first arm member and a second arm member, and the second connecting member includes a third arm member and the fourth arm member, the base end of the first arm member is connected to the movable block in a manner that can rotate around the third axis, and the front end of the first arm member is It is connected to the base end of the second arm member so as to be rotatable around the first connecting axis, and the front end of the second arm member is connected to be rotatable around the fourth axis. In the first member, the base end of the third arm member is connected to the movable block so that it can rotate around the fifth axis, and the front end of the third arm member is rotatable around the fifth axis. The base end portion of the aforementioned fourth arm member is connected to the base end portion of the fourth arm member in a manner of rotating around the second connecting shaft, and the front end portion of the aforementioned fourth arm member is connected to the aforementioned 2nd member.

(9) The tool described in any one of the above (1) to (8), wherein the movable block, the first member, the second member, and one or more arms constituting the first connecting member The member and any five members among the one or more arm members constituting the second connecting member are arranged in a pentagonal shape.

According to the present invention, it is possible to provide a tool capable of stably transmitting force to an action portion (for example, a cutting portion or a gripping portion) of the tool.

1,1A,1B: tools

2: State change mechanism

11: 1st component

11a: The first action part

11b: Support arm

12: 2nd component

12a: The second action part

12b: arm part

13: 3rd component

13a: The third action part

14: 4th component

14a: The 4th action part

21: threaded rod

21a: base end

22: Fixed member

23: Movable block

23h: screw hole

24a: base end side stopper

24b: front side stopper

30: The first connecting member

30a: first base end

30b: front end

31: 1st arm member

32: The second arm member

40: The second connecting member

40a: second base end

40b: front end

41: 3rd arm member

42: 4th arm member

50: Base member

51: The first engaging part

52: The second engaging part

91: latch support member

92:Give potential energy component

93: Connecting components

131: The first operation department

141: The second operation department

231: 1st concave part

232: Second recess

233: The first containment hole

234: The second containment hole

AC1: 1st connecting shaft

AC2: The second connecting shaft

AC3: The third connecting shaft

AX: Long side direction axis

AX1: the first axis

AX2: the second axis

AX3: the third axis

AX4: the 4th axis

AX5: the fifth axis

AX6: the 6th axis

DR1: 1st direction

DR2: 2nd direction

P1, P3~P11: latch components

SP: space

Fig. 1 is a schematic two-sided view of a tool in the first embodiment.

Fig. 2 is a schematic rear view of the tool in the first embodiment.

Fig. 3 is a schematic two-sided view of the tool in the first embodiment.

Fig. 4 is a schematic rear view of the tool in the first embodiment.

Fig. 5 is a schematic plan view schematically showing an example of a movable block.

Fig. 6 is a schematic two-sided view of the tool in the second embodiment.

Hereinafter, the tool 1 in the embodiment will be described in detail with reference to the drawings. In addition, in this specification, the same or similar code|symbol is attached|subjected to the member which has the same kind of function. In addition, for members to which the same or similar symbols are attached, overlapping descriptions may be omitted.

(first embodiment)

A tool 1A in the first embodiment will be described with reference to FIGS. 1 to 5 . 1 and 3 are schematic two-sided views of a tool 1A in the first embodiment. A schematic front view of the tool 1A is described on the left side of FIGS. 1 and 3 , and a schematic side view of the tool 1A is described on the right side of FIGS. 1 and 3 . In addition, in the side view of the tool 1A, description of the second coupling member 40 is omitted in order to avoid complicating the drawing. 2 and 4 are schematic rear views of the tool 1A in the first embodiment. FIG. 5 is a schematic plan view schematically showing an example of the movable block 23 .

In FIG. 1 , the first member 11 and the second member 12 of the tool 1A are in an open state. The open state refers to the following state: the object to be cut or the object to be grasped can enter the first member The state in the space SP defined by the first action part 11a of 11 and the second action part 12a of the second member 12 (or, from the space SP defined by the first action part 11a and the second action part 12a, the The state of cutting off the object or holding the object out). In addition, in the following description, "object to cut" and "object to grasp" are collectively referred to as "object". In other words, the "object" means "the object to be cut or the object to be grasped".

In FIG. 2 , the first member 11 and the second member 12 of the tool 1A are in a closed state. The closed state means a state in which an object can be cut or grasped by the first action part 11a and the second action part 12a. When the tool 1A is a holding tool, the closed state means a state in which the distance between the first action part 11 a and the second action part 12 a is smaller than that in the open state. In addition, when the tool 1A is a cutting tool, the closed state refers to a state in which the first action part 11a, that is, the first action part 11a, is viewed from the front (that is, viewed from a direction along the first axis AX1 described later) in a frontal view. A state in which the first blade overlaps with the second acting portion 12a, that is, a second blade, or a state in which the first blade and the second blade are in contact.

After disposing the object in the space SP defined by the first action part 11a and the second action part 12a, after changing the state of the first member 11 and the second member 12 from the open state to the closed state, the The first action part 11a and the second action part 12a cut or hold the object.

A tool 1A in the first embodiment includes a first member 11 , a second member 12 , and a state changing mechanism 2 .

The first member 11 includes a first action portion 11a capable of contacting an object. When the tool 1A is a cutting tool, the first action part 11a is a first blade part, and when the tool 1A is a holding tool, the first action part 11a is a first holding part.

The first member 11 is rotatable around the first axis AX1. In the example shown in FIG. 1, the plug member P1 (first plug member) is disposed so as to pass through both the first member 11 and the second member 12, and the first member 11 can rotate around the plug member P1. In other words, the center of the pin member P1 The mandrel is coincident with the first axis AX1. Furthermore, in the example described in FIG. 1, although the first member 11 is constituted by one part (for example, one plate-shaped part), the first member 11 may also be constituted by a combination of plural parts.

The second member 12 includes a second action portion 12a capable of contacting an object. When the tool 1A is a cutting tool, the second action part 12a is a second blade part, and when the tool 1A is a holding tool, the second action part 12a is a second holding part.

The second member 12 is rotatable around the second axis AX2. In the example shown in FIG. 1 , the second member 12 is rotatable around the plug member P1. In other words, the central axis of the plug member P1 coincides with the second axis AX2. Furthermore, in the example shown in FIG. 1, although the rotation axis (first axis AX1) of the first member 11 and the rotation axis (second axis AX2) of the second member 12 are coaxial, the first axis AX1 The second axis AX2 may be non-coaxial but parallel to each other. In addition, in the example shown in FIG. 1, although the second member 12 is constituted by one part (for example, one plate-shaped part), the second member 12 may also be constituted by a combination of plural parts.

The state change mechanism 2 rotates the first member 11 around the first axis AX1, and rotates the second member 12 around the second axis AX2, thereby changing the states of the first member 11 and the second member 12. Change from open state to closed state. In the process of changing the first member 11 and the second member 12 from the open state to the closed state, the object is sandwiched by the first action part 11a and the second action part 12a. And, when the first member 11 and the second member 12 are in the closed state, the object is cut or grasped by the first action part 11a and the second action part 12a.

The state change member 2 includes a threaded rod 21 , a movable block 23 screwed to the threaded rod 21 , a first connecting member 30 , and a second connecting member 40 .

The threaded rod 21 has external threads on the outer peripheral surface. When the threaded rod 21 rotates in the first rotation direction (for example, counterclockwise) around the longitudinal axis AX of the threaded rod 21 , the movable block 23 moves in the first direction DR1 . The first direction DR1 is, for example, along the length of the threaded rod 21. The side direction is the direction from the base end portion of the threaded rod 21 toward the first action portion 11a and the second action portion 12a. On the other hand, when the threaded rod 21 rotates in the second rotation direction (for example, clockwise) around the longitudinal axis AX of the threaded rod 21 , the movable block 23 moves in the second direction DR2 . The second direction DR2 is, for example, a direction along the longitudinal direction of the threaded rod 21 , and is a direction from the first action portion 11 a and the second action portion 12 a toward the base end portion of the threaded rod 21 . Furthermore, the first rotation direction may be clockwise, and the second rotation direction may be counterclockwise.

In the example shown in FIG. 1 , the front end of the threaded rod 21 is connected to the pin supporting member 91 through the fixing member 22, and the pin supporting member 91 supports the pin member P1 (first pin member). In the example shown in FIG. 1 , the front end portion of the threaded rod 21 is connected to the plug supporting member 91 in a state where it can rotate around the longitudinal axis AX of the threaded rod 21 . Therefore, the rotation of the threaded rod 21 is not hindered by the latch support member 91 .

The movable block body 23 has a screw hole portion 23h screwed to the threaded rod 21 . Internal threads are formed in the screw hole portion 23h. The movable block 23 can move along the threaded rod 21 . The moving stroke of the movable block body 23 is defined by the base-side stopper 24a and the front-end side stopper 24b. In the example described in FIG. 1 , although the movable block body 23 is constituted by one part, the movable block body 23 may be constituted by a combination of plural parts.

The first connecting member 30 connects the movable block body 23 and the first member 11 .

In the example shown in FIG. 1 , the first base end portion 30 a of the first connection member 30 is connected to the movable block 23 so as to be rotatable around the third axis AX3 . More specifically, the plug member P3 (second plug member) is disposed so as to pass through both the first connection member 30 and the movable block 23, and the first connection member 30 can rotate around the plug member P3.

In the example shown in FIG. 1 , the front end portion 30b of the first connecting member 30 is connected to the base end portion of the first member 11 so as to be rotatable around the fourth axis AX4. More specifically, the plug member P4 (third plug member) is disposed so as to pass through the first connecting member 30 and the first member. On both sides of 11, the first connecting member 30 can rotate around the latch member P4.

In the example shown in FIG. 1 , although the first connecting member 30 is constituted by one part (for example, one plate-shaped part), the first connecting member 30 may also be constituted by a combination of plural parts.

The second connecting member 40 connects the movable block 23 and the second member 12 .

In the example shown in FIG. 1, the 2nd base end part 40a of the 2nd connection member 40 is connected to the movable block body 23 so that rotation about the 5th axis AX5 is possible. More specifically, the plug member P5 (fourth plug member) is disposed so as to penetrate both the second connection member 40 and the movable block 23, and the second connection member 40 can rotate around the plug member P5.

In the example shown in FIG. 1 , the distal end portion 40b of the second coupling member 40 is coupled to the base end portion of the second member 12 so as to be rotatable around the sixth axis AX6. More specifically, the plug member P6 (fifth plug member) is disposed so as to penetrate both the second connection member 40 and the second member 12, and the second connection member 40 can rotate around the plug member P6.

In the example shown in FIG. 1, although the second connecting member 40 is constituted by one part (for example, one plate-shaped part), the second connecting member 40 may be constituted by a combination of plural parts.

In the tool 1A of the first embodiment, the state of the first member 11 and the second member 12 is changed from the open state (for example, it can be The state where the object enters the space SP defined by the first action part 11a and the second action part 12a) is changed to the second state (for example, a state where the object can be cut or grasped). Accordingly, even in the final stage of cutting or gripping, the operating force can be stably transmitted to the first member 11 and the second member 12 through the movable block 23 .

The mechanism of cutting or holding an object by the first action part 11a of the first member 11 and the second action part 12a of the second member 12 will be described in more detail.

In the state shown in FIG. 1 , the threaded rod 21 is rotated in the first rotation direction. The rotation of the threaded rod 21 is performed, for example, by operating the base end portion 21a of the threaded rod 21 (more specifically, rotating the base end portion 21a of the threaded rod 21 around the longitudinal axis AX of the threaded rod 21).

When the threaded rod 21 rotates in the first rotation direction, the movable block 23 moves along the longitudinal axis AX of the threaded rod 21 . In the example shown in FIG. 1 , the movable block 23 moves in the first direction DR1.

When the movable block 23 moves along the longitudinal axis AX of the threaded rod 21 , the distance between the movable block 23 and the first axis AX1 (or the second axis AX2 ) changes. In the example shown in FIG. 1 , when the movable block 23 moves toward the first direction DR1 , the distance between the movable block 23 and the first axis AX1 becomes smaller. When the distance between the movable block 23 and the first axis AX1 becomes smaller, the fourth axis AX4 moves away from the threaded rod 21 . Likewise, when the movable block 23 moves toward the first direction DR1 , the distance between the movable block 23 and the second axis AX2 becomes smaller. When the distance between the movable block 23 and the second axis AX2 becomes smaller, the sixth axis AX6 moves away from the threaded rod 21 .

When the fourth axis AX4 moves away from the threaded rod 21 , the base end of the first coupling member 30 rotates around the third axis AX3 , and the first member 11 rotates around the first axis AX1 . In this way, the first action part 11a of the first member 11 moves in a direction approaching the second action part 12a. Moreover, when the sixth axis AX6 moves away from the threaded rod 21, the base end of the second connecting member 40 rotates around the fifth axis AX5, and the second member 12 rotates around the second axis AX2. move. In this way, the second action part 12a of the second member 12 moves in a direction approaching the first action part 11a.

When the first action part 11a and the second action part 12a approach each other, the object is cut or grasped by the first action part 11a and the second action part 12a.

In the example shown in FIG. 1 and FIG. 2, when the movable block 23 moves toward the direction approaching the first member 11 and the second member 12 (in other words, the first direction DR1), the first member 11 and the second member 12 The state is changed from the open state to the closed state. In other words, the force pushing the movable block 23 toward the front end is utilized to cut or hold the object by the first action part 11a and the second action part 12a. Accordingly, the transmission mechanism of the force to the action parts (11a, 12a) becomes simple, and the movement of the movable block 23 can be efficiently converted into a cutting force for cutting an object or a holding force for grasping an object.

In the example shown in Fig. 2, when the first member 11 and the second member 12 are in the closed state, the angle β formed between the straight line L1 and the straight line L2 will be relatively large. Among the straight lines between the four axes AX4 and the first axis AX1, the aforementioned straight line L2 is a straight line connecting the sixth axis AX6 and the second axis AX2 (in FIG. 2 , the second axis AX2 and the first axis AX1 are coaxial). In this case, in the final stage of cutting or gripping, the operation force can be more stably transmitted to the first member 11 and the second member 12 . In addition, the above-mentioned angle β is, for example, 0° to 180°, more preferably 120° to 180°.

An example of optional additional configurations that can be employed in the first embodiment will be described with reference to FIG. 3 and FIG. 4 .

(Arrangement of the 1st axis AX1 to the 6th axis AX6)

In the example shown in FIGS. 3 and 4 , regardless of whether the first member 11 and the second member 12 are in the open state or in the closed state, the first axis AX1 is arranged closer to the third axis AX3 and the fourth axis AX4. Far side (1st direction DR1 side). In addition, the first axis AX1 is arranged at a position closer to the longitudinal axis AX of the threaded rod 21 than the third axis AX3 and the fourth axis AX4. Also, regardless of when the first member 11 and the second member 12 are in the open state or in the closed state, the second axis AX2 is arranged farther than the fifth axis AX5 and the sixth axis AX6 (on the side in the first direction DR1 ), Furthermore, the second axis AX2 is arranged at a position closer to the longitudinal axis AX of the threaded rod 21 than the fifth axis AX5 and the sixth axis AX6.

In the example shown in FIG. 3 and FIG. 4 , regardless of whether the first member 11 and the second member 12 are in the open state or in the closed state, the third axis AX3 is arranged on the proximal side of the fourth axis AX4 (the third axis AX4). 2 direction DR2 side). In addition, the third axis AX3 is arranged at a position closer to the longitudinal axis AX of the threaded rod 21 than the fourth axis AX4. Moreover, regardless of when the first member 11 and the second member 12 are in the open state or in the closed state, the fifth axis AX5 is arranged on the proximal side (the second direction DR2 side) of the sixth axis AX6, and the fifth axis AX5 The axis AX5 is arranged at a position closer to the longitudinal axis AX of the threaded rod 21 than the sixth axis AX6.

(Shape formed by the first connecting member 30, the second connecting member 40, etc.)

In the example shown in FIGS. 3 and 4 , the movable block 23 , the first connecting member 30 , the first member 11 , the second member 12 , and the second connecting member 40 are arranged in a pentagonal shape. And, the movable block 23 corresponds to the base of the pentagon. After the movable block body 23 moves toward the first direction DR1, the width (vertical The length in the direction of the longitudinal axis AX) will expand. By expanding the width of the pentagonal shape, in other words, by expanding the distance between the fourth axis AX4 and the sixth axis AX6, the force applied to the movable block 23 will pass through the first connecting member 30 and the second connecting member 40 And it is effectively transmitted to the first member 11 and the second member 12 .

In the example described in FIGS. 3 and 4 , in a frontal view or a rear view, the base end portion of the first connecting member 30 (that is, the first end portion connected to the movable block 23 in a rotatable manner) 1 The base end portion 30a) is located at a position separated from the threaded rod 21. Also, in the perspective of the front or the rear, the base end portion of the second connecting member 40 (that is, the second base end portion 40a connected in a rotatable manner relative to the movable block body 23) is located on the screw thread. The location where the rod 21 separates. In this case, compared with the case where the first base end portion 30a and the second base end portion 40a overlap the threaded rod 21, the connection members (30, 40) can be shortened when viewed from the front or rear. In addition, the moving stroke of the movable block 23 that controls the opening and closing action can be reduced.

(base member 50)

In the example shown in FIG. 3 , the tool 1A includes a base member 50 that supports the threaded rod 21 . The base member 50 supports the threaded rod 21 so that the threaded rod 21 can rotate around the longitudinal axis AX. In the example shown in FIG. 3 , the threaded rod 21 is supported by the base member 50 and the latch support member 91 .

The base member 50 has a first engaging portion 51 that engages with a fixing portion of the remote operation tool. In the example shown in FIG. 3 , the first engaging portion 51 is an engaging groove. By connecting the base member 50 to the remote operation tool, the tool 1A can be used as a tool for cutting or holding an object away from the operator. The tool 1A connected to the remote operation tool can also be used as a tool for cutting or holding overhead wires. Furthermore, the length of the remote operation tool can be appropriately selected according to the distance between the worker and the object. Accordingly, the length of the teleoperation tool is arbitrary.

In the example shown in FIG. 3 , the base end portion 21 a of the threaded rod 21 has a second engaging portion 52 that engages with the movable portion of the remote operation tool. In the example shown in FIG. 3 , at least a part of the second engaging portion 52 is arranged in the space inside the base member 50 . In the example shown in FIG. 3 , the cross-sectional shape of the second engaging portion 52 (the cross-sectional shape of a plane perpendicular to the longitudinal axis AX of the threaded rod 21 ) is a polygonal shape (for example, a hexagonal shape). However, the cross-sectional shape of the second engaging portion 52 is not limited to the polygonal shape.

Next, an example of a method of operating the tool 1A using the remote operation tool will be described. As a preparatory step, the fixed part of the remote operation tool is engaged with the first engaging part 51 , and the movable part of the remote operation tool is engaged with the second engaging part 52 . Thereafter, the remote operation tool is operated to actuate the movable part of the remote operation tool (for example, to rotate around the longitudinal axis AX of the threaded rod 21 ). When the movable part of the remote operation tool is actuated, the second engagement 52 connected to the movable part is actuated (for example, rotates around the longitudinal axis AX of the threaded rod 21 ). When the second engaging part After 52 is actuated, the threaded rod 21 rotates around the longitudinal axis AX of the threaded rod 21 . Since the mechanism for converting the rotation of the threaded rod 21 into the opening and closing movement of the first member 11 and the second member 12 has already been described, repeated description of the mechanism will be omitted.

In the example shown in FIG. 3 , the tool 1A includes a base member 50 that supports the threaded rod 21 , and the base member 50 has a first engaging portion 51 that engages with a fixing portion of the remote operation tool. Accordingly, the tool 1A can be used as a tool for cutting or holding an object away from the operator. In addition, the tool 1A includes a second engaging portion 52 engaged with a movable portion of the remote operating tool in addition to the first engaging portion 51 engaging with the fixed portion of the remote operating tool. Therefore, the tool 1A supported through the first engaging portion 51 can be stably operated through the second engaging portion 52 .

(third member 13 and fourth member 14)

In the example shown in FIGS. 3 and 4 , the tool 1A includes a third member 13 and a fourth member 14 in addition to the first member 11 and the second member 12 . The third member 13 has a third action portion 13a capable of contacting an object to be grasped or cut, and the fourth member 14 has a fourth action portion 14a capable of contacting an object to be grasped or cut.

In the example described in Fig. 3 and Fig. 4, the first action part 11a is the first blade part, the second action part 12a is the second blade part, the third action part 13a is the first grip part, and the fourth action part 14a is the 2nd holding part. In this case, the object can be cut by the first action part 11a and the second action part 12a while the object is held by the third action part 13a and the fourth action part 14a. Accordingly, it is possible to suppress positional deviation of the object during cutting. Alternatively, the 1st action part 11a and the 2nd action part 12a may be a gripping part, and the 3rd action part 13a and the 4th action part 14a may be a cutting part.

In the example shown in FIGS. 3 and 4 , the third member 13 is rotatable around the first axis AX1. More specifically, the third member 13 is rotatably supported by the plug member P1. By rotating the first member 11 and the third member 13 around a common axis (the first axis AX1), the The cooperation between the first member 11 and the third member 13 (cooperation between the gripping operation and the cutting operation) is advantageously performed.

In the example shown in FIGS. 3 and 4 , the fourth member 14 is rotatable around the second axis AX2. More specifically, the fourth member 14 is rotatably supported by the plug member P1. By rotating the second member 12 and the fourth member 14 around the common axis (second axis AX2), the cooperation between the second member 12 and the fourth member 14 (holding action and cutting action) can be smoothly carried out. collaboration). Furthermore, the first axis AX1 and the second axis AX2 may or may not be coaxial.

The tool 1A may also be equipped with a potential energy imparting member 92. The aforementioned potential energy imparting member 92 is a combination of the third member 13 (more specifically, the third action part 13a) and the fourth member 14 (more specifically, the fourth action part 13a). The portion 14a) imparts potential energy in the closing direction. The potential energy imparting member 92 is, for example, a torsion coil having a first end in contact with the third member 13 and a second end in contact with the fourth member 14 .

When the tool 1A is provided with the potential energy imparting member 92 , the object can be stably grasped by the third action portion 13 a and the fourth action portion 14 a by utilizing the potential energy imparting force of the potential energy imparting member 92 . Also, when the object is grasped by utilizing the potential energy imparting force of the potential energy imparting member 92, an excessive grasping force does not act on the object. Accordingly, the object is not damaged by gripping the object by the third action part 13a and the fourth action part 14a.

In the example shown in FIGS. 3 and 4 , the third member 13 is provided with a first operation unit 131 that is operated by the first member 11 . In addition, the fourth member 14 includes a second operation portion 141 that is operated by the second member 12 .

When the states of the first member 11 and the second member 12 are changed from the closed state to the open state, the first member 11 pushes the first operation part 131 , and the second member 12 pushes the second operation part 141 . In this way, the third member 13 (more specifically, the third action portion 13a) and the fourth member 14 (more specifically, the fourth action portion 14a) can resist the potential force of the potential energy imparting member 92. , and change the state from the closed state to the open state.

Furthermore, in the example described in FIG. 3 and FIG. 4 , it is the arm portion 11 b (the portion on the proximal side of the first axis AX1 ) of the first member 11 that pushes the first operation portion 131 , and pushes the first operation portion 131 . The second operation part 141 is the arm part 12b of the second member 12 (the part on the proximal end side from the second axis AX2).

(movable block 23)

An example of the movable block 23 will be described in more detail with reference to FIG. 5 .

The movable block 23 has a screw hole portion 23h in a central region in a plan view (in other words, viewed along the direction of the longitudinal axis AX of the threaded rod 21 ). Also, in a plan view, the movable block 23 has a first recess 231 (more specifically, the first receiving groove) and a second recess 232 (more specifically, the second receiving groove), and the aforementioned first recess 231 is The first base end portion 30 a of the first connection member 30 is received, and the second concave portion 232 is for receiving the second base end portion 40 a of the second connection member 40 .

In the example shown in FIG. 5 , the first concave portion 231 and the second concave portion 232 are arranged in the edge region of the movable block 23 . Moreover, in the example shown in FIG. 5, the 1st recessed part 231 and the 2nd recessed part 232 are arrange|positioned so that the screw hole part 23h may be sandwiched. As shown in FIG. 5, the 1st recessed part 231 may be arrange|positioned axially symmetrically with the 2nd recessed part 232 with respect to the screw hole part 23h. In this case, the force acting on the movable block 23 is transmitted substantially equally to the first connecting member 30 arranged in the first recess 231 and the second connecting member 40 arranged in the second recess 232 . Moreover, in the example described in FIG. 5 , in a plan view (in other words, viewed along the direction of the longitudinal axis AX of the threaded rod 21), the center C1 of the first concave portion 231 and the distance between the second concave portion 232 The straight line L3 of the center C2 is inclined relative to the straight line L4 which is a straight line parallel to the width direction of the movable block 23 . Alternatively, the straight line L3 passing through the center C1 of the first concave portion 231 and the center C2 of the second concave portion 232 may also be parallel to the straight line L4, which is a straight line parallel to the width direction of the movable block 23 .

In the example shown in FIG. 5 , a first housing hole 233 for housing the pin member P3 and a second housing hole 234 for housing the pin member P5 are formed in the movable block 23 . When the first connecting member 30 is disposed in the first concave portion 231 , the pin member P3 is inserted into the first receiving hole 233 , so that the first connecting member 30 can be rotatably supported by the pin member P3 . Also, when the second connecting member 40 has been disposed in the second concave portion 232, the plug member P5 is inserted into the second receiving hole 234, whereby the second connecting member 40 can be rotatably supported by the plug member P5. move.

In the example shown in FIG. 5, the extending direction of the first receiving hole 233 is perpendicular to the extending direction of the screw hole portion 23h. Also, the extending direction of the second receiving hole 234 is parallel to the extending direction of the first receiving hole 233 . The distance between the first receiving hole 233 and the screw hole portion 23h is equal to the distance between the second receiving hole 234 and the screw hole portion 23h.

(second embodiment)

A tool 1B in the second embodiment will be described with reference to FIG. 6 . Fig. 6 is a schematic two-sided view of a tool 1B in the second embodiment. A schematic front view of the tool 1B is described on the left side of FIG. 6 , and a schematic side view of the tool 1B is described on the right side of FIG. 6 .

In the tool 1B of the second embodiment, the first connecting member 30 includes the first arm member 31 and the second arm member 32 , and the second connecting member 40 includes the third arm member 41 and the fourth arm member 42 .

In the second embodiment, differences from the first embodiment will be mainly described, and redundant description of matters already described in the first embodiment will be omitted. Accordingly, even if it is not explicitly described in the second embodiment, it is needless to say that the matters described in the first embodiment can be adopted in the second embodiment.

Like the tool 1A in the first embodiment, the tool 1B in the second embodiment is equipped with a first member 11, a second member 12, and a state change mechanism 2, and the state changes The mechanism 2 includes a threaded rod 21 , a movable block 23 , a first connecting member 30 , and a second connecting member 40 .

In the example shown in FIG. 6 , the first axis AX1 (or the plug member P1 ) is arranged between the first member 11 and the second member 12 . In addition, the first member 11 and the second member 12 are connected through the connection member 93 . The plug member P7 is inserted through the connection member 93 and the first member 11, and the first member 11 is rotatable with respect to the connection member 93 around the central axis of the plug member P7. Moreover, the plug member P8 is inserted through the connection member 93 and the 2nd member 12, and the 2nd member 12 is rotatable with respect to the connection member 93 around the center axis|shaft of the plug member P8.

In the example shown in FIG. 6 , the first axis AX1 is arranged between the first member 11 and the second member 12 , and the first member 11 and the second member 12 are connected through the connecting member 93 . As an alternative, as shown in the example shown in FIG. 1, the first axis AX1 is configured to pass through the first member 11 and the second member 12, and the first member 11 and the second member 12 are connected through the plug member P1. link. Conversely, the connection structure between the first member 11 and the second member 12 illustrated in FIG. 6 can also be adopted in the first embodiment.

In the example shown in FIG. 6, the 1st action part 11a of the 1st member 11 is a 1st grip part, and the 2nd action part 12a of the 2nd member 12 is a 2nd grip part. Alternatively, the first action part 11a may be a first blade, and the second action part 12a may be a second blade.

In the second embodiment, the same configuration as that of the first embodiment can be employed for the threaded rod 21 and the movable block 23 . Of course, any modification can be made to the shape or structure of the threaded rod 21 and the movable block 23 .

In the example shown in FIG. 6 , as in the example shown in FIG. 1 , the front end portion of the threaded rod 21 is connected to the plug supporting member 91 through the fixing member 22 . However, the plug member supported by the plug support member 91 is the plug member P1 (the first plug member) in the example shown in FIG. 6th latch member).

The first coupling member 30 includes a first arm member 31 and a second arm member 32 . In the example shown in FIG. 6 , the base end portion of the first arm member 31 is connected to the movable block 23 so as to be rotatable around the third axis AX3 (more specifically, the plug member P3 ). . Also, the front end portion of the first arm member 31 is connected to the base end portion of the second arm member 32 so as to be rotatable about the first connection axis AC1 (more specifically, the plug member P10 ). Moreover, the front-end|tip part of the 2nd arm member 32 is connected to the 1st member 11 so that rotation is possible about the 4th axis AX4 (more specifically, the plug member P4).

The second connecting member 40 includes a third arm member 41 and a fourth arm member 42 . In the example shown in FIG. 6 , the base end portion of the third arm member 41 is connected to the movable block 23 so as to be rotatable around the fifth axis AX5 (more specifically, the plug member P5 ). . Also, the front end portion of the third arm member 41 is connected to the base end portion of the fourth arm member 42 so as to be rotatable about the second connection axis AC2 (more specifically, the plug member P11 ). Moreover, the front-end|tip part of the 4th arm member 42 is connected to the 2nd member 12 so that rotation is possible about the 6th axis AX6 (more specifically, the plug member P6).

With the above configuration, the force acting on the movable block 23 can be transmitted to the first member 11 through the first connecting member 30 (more specifically, the first arm member 31 and the second arm member 32 ). Likewise, the force acting on the movable block 23 can be transmitted to the second member 12 through the second connection member 40 (more specifically, the third arm member 41 and the fourth arm member 42 ).

Furthermore, in the example shown in FIG. 6 , the second arm member 32 is rotatable around the third connection axis AC3, and the fourth arm member 42 is rotatable around the third connection axis AC3. More specifically, the middle portion of the second arm member 32 (the portion between the first connection axis AC1 and the fourth axis AX4), and the middle portion of the fourth arm member 42 (the second connection axis AC2 and the sixth The portion between the axes AX6) is supported by the pin member P9 passing through the third connection axis AC3. In addition, the second arm member 32 and the fourth arm member 42 overlap each other on the third connection axis AC3.

In the second embodiment, the mechanism of cutting or holding an object by the first action portion 11a of the first member 11 and the second action portion 12a of the second member 12 will be described in more detail.

In the state shown in FIG. 6 , the threaded rod 21 is rotated in the first rotation direction. The rotation of the screw rod 21 is performed, for example, by operating the base end portion 21a of the screw rod (more specifically, rotating the base end portion 21a of the screw rod 21 around the longitudinal axis AX of the screw rod 21 ).

When the threaded rod 21 rotates in the first rotation direction, the movable block 23 moves along the longitudinal axis AX of the threaded rod 21 . In the example shown in FIG. 6 , the movable block 23 moves in the first direction DR1.

When the movable block body 23 moves toward the first direction DR1, the distance between the movable block body 23 and the third connecting axis AC3 changes (more specifically, the distance between the movable block body 23 and the third connecting axis AC3 becomes short). Furthermore, when the distance between the movable block 23 and the third connection axis AC3 becomes shorter, the first connection axis AC1 (and the second connection axis AC2 ) move away from the threaded rod 21 .

When the first connection axis AC1 moves away from the threaded rod 21, the base end of the first arm member 31 rotates around the third axis AX3, and the second arm member 32 rotates around the third connection axis. AC3 while rotating. When the second arm member 32 rotates around the third connecting axis AC3, and the front end of the second arm member 32 moves away from the longitudinal axis AX of the threaded rod 21, the first member 11 rotates around the third connection axis AC3. Rotate around the first axis AX1. In this way, the first action part 11a of the first member 11 moves in a direction approaching the second action part 12a.

Also, when the second connection axis AC2 moves away from the threaded rod 21, the base end of the third arm member 41 rotates around the fifth axis AX5, and the fourth arm member 42 rotates around the third axis AX5. Connect the shaft AC3 to rotate. When the fourth arm member 42 rotates around the third connection axis AC3, and the front end of the fourth arm member 42 moves away from the longitudinal axis AX of the threaded rod 21 After the movement, the second member 12 rotates around the first axis AX1. In this way, the second action part 12a of the second member 12 moves in a direction approaching the first action part 11a.

When the first action part 11a and the second action part 12a approach each other, the object is grasped or cut by the first action part 11a and the second action part 12a.

The tool 1B in the second embodiment exhibits the same effect as the tool 1A in the first embodiment. In addition, in the example described in FIG. 6, although each connecting member (30, 40) is provided with 2 arm members, the number of the arm members provided in each connecting member may be 3 or more. Also, in the example shown in FIG. 6, although the second arm member 32 and the fourth arm member 42 are disposed so as to overlap each other, the two arms other than the second arm member 32 and the fourth arm member 42 Members may also be arranged to overlap each other. For example, the first member 11 and the second member 12 may be arranged to overlap each other.

In the example shown in FIG. 6 , the movable block 23 , the first arm member 31 , the second arm member 32 , the third arm member 41 , and the fourth arm member 42 are arranged in a pentagonal shape. However, the members arranged in a pentagonal shape are not limited to the movable block 23 , the first arm member 31 , the second arm member 32 , the third arm member 41 , and the fourth arm member 42 . Among the movable block 23, the first member 11, the second member 12, one or more arm members constituting the first connecting member 30, and one or more arm members constituting the second connecting member 40, Arbitrary 5 components are arranged in a pentagonal shape.

The present invention is not limited to the above-mentioned embodiments, and it should be clearly understood that the various embodiments can be appropriately modified or changed within the scope of the technical idea of the present invention. In addition, arbitrary constituent elements used in each embodiment may be combined with other embodiments, and arbitrary constituent elements may be omitted in each embodiment.

Industrial availability

Using the tool of the present invention, it is possible to stably transmit force to the action portion of the tool. thereby, The present invention is useful for operators who perform operations using tools such as holding tools and cutting tools, and for manufacturers who manufacture tools such as holding tools and cutting tools.

1,1A: Tools

2: State change mechanism

11: 1st component

11a: The first action part

12: 2nd component

12a: The second action part

21: threaded rod

21a: base end

22: Fixed member

23: Movable block

23h: screw hole

24a: base end side stopper

24b: front side stopper

30: The first connecting member

30a: first base end

30b: front end

40: The second connecting member

40a: second base end

40b: front end

91: latch support member

AX: Long side direction axis

AX1: the first axis

AX2: the second axis

AX3: the third axis

AX4: the 4th axis

AX5: the fifth axis

AX6: the 6th axis

DR1: 1st direction

DR2: 2nd direction

P1, P3~P6: Pin components

SP: space

Claims (8)

A tool for cutting or holding an object, comprising: a first member including a first action portion capable of contacting an object, the object includes an object to be held or an object to be cut, and can move around a first axis rotation; the second member includes a second action portion capable of contacting the object, and is capable of rotating around a second axis; and a state changing mechanism that rotates the first member around the first axis, And the aforementioned second member is rotated around the aforementioned second shaft, thereby changing the state of the aforementioned first member and the aforementioned second member from an open state to a closed state, and the aforementioned state changing mechanism includes: a threaded rod; a movable block , screwed on the aforementioned threaded rod; the first connecting member, connecting the aforementioned movable block and the aforementioned first member; and the second connecting member, connecting the aforementioned movable block and the aforementioned second member, through the aforementioned movable block along the aforementioned The axial movement of the threaded rod in the longitudinal direction changes the state of the first member and the second member from the open state to the closed state; when the movable block moves closer to the first member and the second member , the states of the aforementioned first member and the aforementioned second member are changed from the aforementioned open state to the aforementioned closed state; the aforementioned first connecting member has a first base end portion, and the aforementioned first base end portion is relative to the aforementioned movable block. Connected in a rotatable manner, the aforementioned second connecting member has a second base end portion, and the aforementioned second base end portion is connected in a rotatable manner relative to the aforementioned movable block. The first base end portion is located at a position separated from the threaded rod, and the second base end portion is located at a position separated from the threaded rod. The tool for cutting or holding an object according to claim 1, wherein the first axis and the second axis are coaxial. The tool for cutting or holding an object as claimed in Claim 1 further includes a base member that supports the threaded rod in a rotatable manner, and the base member has a fixing part that engages with a remote operation tool. The base end portion of the threaded rod has a second engaging portion engaged with the movable portion of the remote operation tool. The tool for cutting or holding an object as claimed in Claim 2 further includes a base member, the aforementioned base member supports the aforementioned threaded rod in a rotatable manner, and the aforementioned base member has a fixing portion that engages with the remote operation tool The base end portion of the threaded rod has a second engaging portion engaged with the movable portion of the remote operation tool. The tool for cutting or holding an object according to any one of Claims 1 to 4, further comprising: a third member including a third action portion that can contact the object, and can move around the first axis rotation; and a fourth member including a fourth action portion capable of contacting the object and capable of rotation around the second axis. The tool for cutting or holding an object according to any one of claims 1 to 4, wherein the first connecting member is connected to the movable block in a manner that can rotate around the third axis, and the first connecting member The connecting member is connected to the first member so as to be rotatable around a fourth axis, and the second connecting member is connected to the movable member so as to be rotatable around a fifth axis. In the block body, the second connection member is connected to the second member so as to be rotatable around a sixth axis. The tool for cutting or holding an object according to any one of claims 1 to 4, wherein the first connecting member includes a first arm member and a second arm member, and the second connecting member includes a third arm member And the fourth arm member, the base end of the first arm member is connected to the movable block in a manner that can rotate around the third axis, and the front end of the first arm member can be rotated around the third axis. The base end portion of the aforementioned second arm member is connected to the base end portion of the aforementioned second arm member in a manner to rotate around the first connection axis, and the front end portion of the aforementioned second arm member is connected to the The base end of the first member and the third arm member are connected to the movable block in a manner that can rotate around the fifth axis, and the front end of the third arm member can be rotated around the fifth axis. The second connecting shaft is connected to the base end portion of the fourth arm member in a rotatable manner, and the front end portion of the fourth arm member is connected to the first arm member in a rotatable manner around the sixth axis. 2 components. The tool for cutting or holding an object according to any one of claims 1 to 4, wherein the movable block, the first member, the second member, and one or more arm members constituting the first connecting member , and any five members among the one or more arm members constituting the second connecting member are arranged in a pentagonal shape.

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