CN215881316U

CN215881316U - Tool with a locking mechanism

Info

Publication number: CN215881316U
Application number: CN201990001267.9U
Authority: CN
Inventors: 高田润祐
Original assignee: Nagaki Seiki Co Ltd
Current assignee: Nagaki Seiki Co Ltd
Priority date: 2018-12-26
Filing date: 2019-11-01
Publication date: 2022-02-22
Anticipated expiration: 2029-11-01
Also published as: JP7186463B2; KR20210105924A; JPWO2020137158A1; TWI801700B; WO2020137158A1; KR102670262B1; PH12021551472A1; TW202027937A

Abstract

The present invention provides a tool that can stably transmit force to an action portion (eg, a cutting portion or a grip portion) of the tool. The tool has: a first part rotatable about a first axis; a second part rotatable about a second axis; and a state changing mechanism for rotating the first part about the first axis and making the second The member is rotated about the second axis, thereby changing the state of the first member and the second member from the open state to the closed state. The state changing member includes a threaded rod, a movable block screwed to the threaded rod, a first coupling member for coupling the movable block and the first member, and a second coupling member for coupling the movable block and the second member. The state of the first member and the second member is changed from the open state to the closed state by axially moving the movable block along the longitudinal direction of the screw rod.

Description

Tool with a locking mechanism

Technical Field

The present invention relates to a tool, and more particularly, to a tool for cutting or gripping an object.

Background

Tools (e.g., cutting tools and gripping tools) for cutting or gripping an object are known.

As a related art, patent document 1 discloses a wire cutting tool. In the wire cutting tool described in patent document 1, the wire is cut by opening and closing a pair of operation rods.

In the wire cutting tool described in patent document 1, a force is applied to a pair of operation rods to cut the wire. Although it is relatively easy to apply a large force to the pair of operation rods stably in a state where the pair of operation rods are separated from each other moderately, it is relatively difficult to apply a large force to the pair of operation rods stably in a state where the pair of operation rods are close to each other. In the final stage of cutting the electric wire, since the pair of operation rods are in a state of being close to each other, it is relatively difficult to stably apply a large force to the pair of operation rods in the final stage.

Prior art documents

Patent document

Patent document 1: japanese patent application laid-open No. 2014-100007

SUMMERY OF THE UTILITY MODEL

Problem to be solved by utility model

The purpose of the present invention is to provide a tool that can stably transmit force to an action portion (for example, a cutting portion or a gripping portion) of the tool.

Means for solving the problems

The present invention relates to the following tools.

(1) A tool, having:

a first member including a first operating portion that can be brought into contact with an object to be gripped or cut, and rotatable about a first axis;

a second member including a second acting portion that can contact the object and rotatable about a second axis; and

a state changing mechanism that changes the state of the first member and the second member from an open state to a closed state by rotating the first member about the first axis and rotating the second member about the second axis,

the state changing mechanism includes:

a threaded rod;

a movable block body screwed to the threaded rod;

a first connecting member that connects the movable block and the first member; and

a second connecting member that connects the movable block and the second member,

the movable block moves along the longitudinal axis of the threaded rod, thereby changing the state of the first member and the second member from the open state to the closed state.

(2) The tool according to the above (1), wherein the first shaft and the second shaft are coaxial.

(3) The tool according to (1) or (2), wherein when the movable block moves in a direction to approach the first member and the second member, the state of the first member and the second member is changed from the open state to the closed state.

(4) The tool according to any one of the above (1) to (3), wherein the first coupling member has a first base end portion rotatably coupled to the movable block,

the second connecting member has a second base end portion rotatably connected to the movable block,

in a front view, 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.

(5) The tool according to any one of the above (1) to (4), further comprising: a base member rotatably supporting the threaded rod,

the base member has a first engaging portion that engages with a fixed portion of a remote operation tool,

the base end portion of the threaded rod has a second engaging portion that engages with the movable portion of the remote operation tool.

(6) The tool according to any one of the above (1) to (5), further comprising:

a third member including a third acting portion contactable to the object and rotatable about the first axis; and

and a fourth member including a fourth operating portion contactable with the object and rotatable about the second axis.

(7) The tool according to any one of the above (1) to (6),

the first connecting member is connected to the movable block so as to be rotatable about a third axis,

the first connecting member is rotatably connected to the first member about a fourth axis,

the second coupling member is coupled to the movable block so as to be rotatable about a fifth axis,

the second coupling member is coupled to the second member so as to be rotatable about a sixth axis.

(8) The tool according to any one of the above (1) to (6),

the first connecting part comprises a first arm part and a second arm part,

the second connecting member includes a third arm member and a fourth arm member,

a base end portion of the first arm member is connected to the movable block so as to be rotatable about a third axis,

a distal end portion of the first arm member is connected to a proximal end portion of the second arm member so as to be rotatable about a first connecting shaft,

the front end portion of the second arm member is coupled to the first member so as to be rotatable about a fourth axis,

a base end portion of the third arm member is connected to the movable block so as to be rotatable about a fifth axis,

a distal end portion of the third arm member is rotatably connected to a proximal end portion of the fourth arm member about a second connecting shaft,

the front end portion of the fourth arm member is connected to the second member so as to be rotatable about a sixth axis.

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

Effect of the utility model

The present invention can provide a tool that can stably transmit force to an action portion (for example, a cutting portion or a gripping portion) of the tool.

Drawings

Fig. 1 is a schematic plan view of a tool according to a first embodiment.

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

Fig. 3 is a schematic plan view of the tool according to 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 the movable block.

Fig. 6 is a schematic plan view of a tool according to the second embodiment.

Detailed Description

Hereinafter, the tool 1 according to the embodiment will be described in detail with reference to the drawings. In this specification, the same or similar reference numerals are assigned to components having the same kind of functions. Note that, in some cases, redundant description of components to which the same or similar reference numerals are given may be omitted.

(first embodiment)

A tool 1A in the first embodiment is explained with reference to fig. 1 to 5. Fig. 1 and 3 are schematic two-dimensional views of a tool 1A according to the first embodiment. A schematic front view of the tool 1A is shown on the left side of fig. 1 and 3, and a schematic side view of the tool 1A is shown on the right side of fig. 1 and 3. In addition, in the side view of the tool 1A, the second coupling member 40 is not illustrated in order to avoid complication of the drawing. Fig. 2 and 4 are schematic rear views of the tool 1A according to 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 on state refers to the following state: the cutting object or the holding object can be put into the space SP defined by the first working portion 11a of the first member 11 and the second working portion 12a of the second member 12 (or the cutting object or the holding object can be taken out from the space SP defined by the first working portion 11a and the second working portion 12 a). In the following description, the "object to be cut" and the "object to be gripped" will be collectively referred to as "objects". In other words, the "object" means "an object to be cut or an object to be gripped".

In fig. 2, the first member 11 and the second member 12 of the tool 1A are in a closed state. The closed state is a state in which the object can be cut or gripped by the first operating portion 11a and the second operating portion 12 a. When the tool 1A is a gripping tool, the closed state is a state in which the distance between the first working portion 11A and the second working portion 12a is smaller than the open state. When the tool 1A is a cutting tool, the closed state refers to the following state: in a front view (i.e., when viewed along a first axis AX1 described later), the first blade 11a, i.e., the first blade, and the second blade 12a, i.e., the second blade intersect with each other, or the first blade and the second blade are in contact with each other.

After the object is placed in the space SP defined by the first working portion 11a and the second working portion 12a, the state of the first member 11 and the second member 12 is changed from the open state to the closed state, and then the object can be cut or gripped by the first working portion 11a and the second working portion 12 a.

The tool 1A according to 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 operating portion 11a that can contact an object. When the tool 1A is a cutting tool, the first working portion 11A is a first blade portion, and when the tool 1A is a gripping tool, the first working portion 11A is a first gripping portion.

The first member 11 is rotatable about a first axis AX 1. In the example shown in fig. 1, the latch member P1 (first latch member) is disposed so as to penetrate both the first member 11 and the second member 12, and the first member 11 is rotatable about the latch member P1. In other words, the central axis of the plug member P1 coincides with the first axis AX 1. In the example shown in fig. 1, the first member 11 is formed by 1 part (for example, 1 plate-like part), but the first member 11 may be formed by a combination of a plurality of parts.

The second member 12 includes a second operating portion 12a that can contact the object. When the tool 1A is a cutting tool, the second working portion 12a is a second blade portion, and when the tool 1A is a gripping tool, the second working portion 12a is a second gripping portion.

The second member 12 is rotatable about a second axis AX 2. In the example illustrated in fig. 1, the second member 12 is rotatable about a latch member P1. In other words, the central axis of the plug member P1 coincides with the second axis AX 2. In the example shown in fig. 1, the rotational axis (the first axis AX1) of the first member 11 and the rotational axis (the second axis AX2) of the second member 12 are coaxial, but the first axis AX1 and the second axis AX2 may be non-coaxial and parallel to each other. In the example shown in fig. 1, the second member 12 is formed by 1 part (for example, 1 plate-like part), but the second member 12 may be formed by a combination of a plurality of parts.

The state changing mechanism 2 changes the states of the first member 11 and the second member 12 from the open state to the closed state by rotating the first member 11 about the first axis AX1 and rotating the second member 12 about the second axis AX 2. 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 held between the first operating portion 11a and the second operating portion 12 a. When the first member 11 and the second member 12 are closed, the object is cut or gripped by the first operating portion 11a and the second operating portion 12 a.

The state changing 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 an external thread on the outer peripheral surface. When the threaded rod 21 rotates in a first rotational direction (e.g., counterclockwise) about the longitudinal axis AX of the threaded rod 21, the movable block 23 moves in the first direction DR 1. The first direction DR1 is, for example, a direction along the longitudinal direction of the screw bar 21 and is a direction from the base end of the screw bar 21 toward the first working portion 11a and the second working portion 12 a. On the other hand, when the threaded rod 21 rotates in the second rotational direction (for example, clockwise) about the longitudinal axis AX of the threaded rod 21, the movable block 23 moves in the second direction DR 2. The second direction DR2 is, for example, a direction along the longitudinal direction of the threaded rod 21 and a direction from the first acting portion 11a and the second acting portion 12a toward the base end of the threaded rod 21. Alternatively, the first rotational direction may be clockwise, and the second rotational direction may be counterclockwise.

In the example shown in fig. 1, the distal end portion of the screw bar 21 is coupled to a plug support member 91 via a fixing member 22, and the plug support member 91 supports a plug member P1 (first plug member). In the example shown in fig. 1, the distal end portion of the threaded rod 21 is connected to the plug support member 91 in a rotatable state about the longitudinal axis AX of the threaded rod 21. Therefore, the rotation of the screw bar 21 is not hindered by the plug support member 91.

The movable block 23 has a screw hole portion 23h screwed to the screw rod 21. A female screw is formed in the screw hole portion 23 h. The movable block 23 is movable along the threaded rod 21. The moving stroke of the movable block 23 is defined by a base end side stopper 24a and a tip end side stopper 24 b. In the example shown in fig. 1, the movable block 23 is formed by 1 part, but the movable block 23 may be formed by a combination of a plurality of parts.

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

In the example shown in fig. 1, the first base end portion 30a of the first linking member 30 is linked to the movable block 23 so as to be rotatable about the third axis AX 3. More specifically, the latch member P3 (second latch member) is disposed so as to penetrate both the first link member 30 and the movable block 23, and the first member 30 is rotatable about the latch member P3.

In the example shown in fig. 1, the distal end portion 30b of the first connecting member 30 is rotatably connected to the base end portion of the first member 11 about the fourth axis AX 4. More specifically, the latch member P4 (third latch member) is disposed so as to penetrate both the first coupling member 30 and the first member 11, and the first coupling member 30 is rotatable about the latch member P4.

In the example shown in fig. 1, the first connecting member 30 is formed by 1 part (for example, 1 plate-like part), but the first connecting member 30 may be formed by a combination of a plurality of parts.

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

In the example shown in fig. 1, the second base end portion 40a of the second connecting member 40 is connected to the movable block 23 so as to be rotatable about the fifth axis AX 5. More specifically, the latch member P5 (fourth latch member) is disposed so as to penetrate both the second coupling member 40 and the movable block 23, and the second member 40 is rotatable about the latch 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 about the sixth axis AX 6. More specifically, the plug member P6 (fifth plug member) is disposed so as to penetrate both the second coupling member 40 and the second member 12, and the second coupling member 40 is rotatable about the plug member P6.

In the example shown in fig. 1, the second connecting member 40 is formed by 1 part (for example, 1 plate-like part), but the second connecting member 40 may be formed by a combination of a plurality of parts.

In the tool 1A according to the first embodiment, the movable block 23 is moved along the longitudinal axis AX of the screw rod 21, whereby the state of the first member 11 and the second member 12 is changed from the open state (for example, a state in which the object can be inserted into the space SP defined by the first working portion 11A and the second working portion 12a) to the second state (for example, a state in which the object can be cut or gripped). Accordingly, even in the final stage of cutting or gripping, the operation force can be stably transmitted to the first member 11 and the second member 12 via the movable block 23.

The mechanism of cutting or gripping the object by the first working portion 11a of the first member 11 and the second working portion 12a of the second member 12 will be described in more detail.

In the state shown in fig. 1, the screw bar 21 is rotated in the first rotational direction. The screw 21 is rotated by, for example, operating the base end 21a of the screw 21 (more specifically, rotating the base end 21a of the screw 21 about the longitudinal axis AX of the screw 21).

When the threaded rod 21 rotates in the first rotational 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 DR 1.

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 in 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. Similarly, when the movable block 23 moves in the first direction DR1, the distance between the movable block 23 and the second axis AX2 decreases. 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 is moved away from the threaded rod 21, the base end portion of the first link member 30 rotates about the third axis AX3, and the first member 11 rotates about the first axis AX 1. In this way, the first working portion 11a of the first member 11 moves in a direction approaching the second working portion 12 a. When the sixth axis AX6 moves in a direction away from the threaded rod 21, the base end portion of the second coupling member 40 rotates about the fifth axis AX5, and the second member 12 rotates about the second axis AX 2. In this way, the second working portion 12a of the second member 12 moves in a direction approaching the first working portion 11 a.

When the first working portion 11a and the second working portion 12a approach each other, the object is cut or gripped by the first working portion 11a and the second working portion 12 a.

In the example shown in fig. 1 and 2, when the movable block 23 moves in a direction to approach the first member 11 and the second member 12 (in other words, in the first direction DR1), the state of the first member 11 and the second member 12 changes from the open state to the closed state. In other words, the force pressing the movable block 23 toward the distal end side is cut or gripped by the object by the first working portion 11a and the second working portion 12 a. This simplifies the force transmission mechanism for the working portions (11a, 12a), and can efficiently convert the movement of the movable block 23 into the cutting force for the object to be cut or the gripping force for the object to be gripped.

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 a straight line L1 and a straight line L2 is relatively large, the straight line L1 is a straight line connecting the fourth axis AX4 and the first axis AX1 in the front view, and the straight line L2 is a straight line connecting the sixth axis AX6 and the second axis AX2 in the front view (in fig. 2, the second axis AX2 and the first axis AX1 are coaxial). In this case, the operating force can be transmitted to the first member 11 and the second member 12 more stably in the final stage of cutting or gripping. The angle β is, for example, 0 to 180 degrees, and more preferably 120 to 180 degrees.

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

(arrangement of first axis AX1 to sixth axis AX 6)

In the example shown in fig. 3 and 4, the first axis AX1 is arranged farther from the third axis AX3 and the fourth axis AX4 (on the first direction DR1 side) regardless of whether the first member 11 and the second member 12 are in the open state or the closed state. In addition, the first axis AX1 is disposed closer to the longitudinal axis AX of the screw bar 21 than the third axis AX3 and the fourth axis AX 4. Further, the second axis AX2 is disposed farther from the fifth axis AX5 and the sixth axis AX6 (on the first direction DR1 side) and the second axis AX2 is disposed closer to the longitudinal axis AX of the threaded rod 21 than the fifth axis AX5 and the sixth axis AX6, regardless of whether the first member 11 and the second member 12 are in the open state or the closed state.

In the example shown in fig. 3 and 4, the third axis AX3 is disposed on the base end side (second direction DR2 side) of the fourth axis AX4 regardless of whether the first member 11 and the second member 12 are in the open state or the closed state. In addition, the third axis AX3 is disposed closer to the longitudinal axis AX of the screw bar 21 than the fourth axis AX 4. Further, the fifth axis AX5 is disposed on the base end side (the second direction DR2 side) of the sixth axis AX6 and the fifth axis AX5 is disposed closer to the longitudinal axis AX of the threaded rod 21 than the sixth axis AX6, regardless of whether the first member 11 and the second member 12 are in the open state or the closed state.

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

In the example shown in fig. 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. The movable block 23 corresponds to the bottom side of the pentagon. When the movable block 23 moves in the first direction DR1, the width (length in a direction perpendicular to the longitudinal axis AX) of the pentagonal shape formed by the movable block 23, the first connecting member 30, the first member 11, the second member 12, and the second connecting member 40 is increased. By the width of the pentagonal shape being enlarged, in other words, by the distance between the fourth axis AX4 and the sixth axis AX6 being enlarged, the force applied to the movable block 23 is efficiently transmitted to the first member 11 and the second member 12 via the first connecting member 30 and the second connecting member 40.

In the example shown in fig. 3 and 4, the base end portion of the first connecting member 30 (i.e., the first base end portion 30a rotatably connected to the movable block 23) is located at a position separated from the screw bar 21 in a front view or a rear view. Further, the base end portion of the second coupling member 40 (i.e., the second base end portion 40a rotatably coupled with respect to the movable block 23) is at a position separated from the screw bar 21 in a front view or a rear view. In this case, the length of the connecting members (30, 40) can be reduced in the front view or the rear view compared to the case where the first base end portion 30a and the second base end portion 40a overlap with the screw bar 21, and the moving stroke of the movable block 23 for controlling the opening and closing operation can be reduced.

(base member 50)

In the example shown in fig. 3, the tool 1A includes a base member 50 that supports the screw bar 21. The base member 50 supports the screw bar 21 such that the screw bar 21 is rotatable about the longitudinal axis AX. In the example shown in fig. 3, the screw bar 21 is supported by the base member 50 and the plug support member 91.

The base member 50 has a first engaging portion 51 that engages with a fixed portion of the remote operation tool. In the example shown in fig. 3, the first engaging portion 51 is an engaging groove. By coupling the base member 50 to the remote operation tool, the tool 1A can be used as a tool for cutting or gripping an object remote from the operator. The tool 1A connected to the remote operation tool may be used as a tool for cutting or gripping the overhead wire. In addition, the length of the remote operation tool may be appropriately selected in accordance with the distance between the operator and the object. Accordingly, the length of the remote operation tool is arbitrary.

In the example shown in fig. 3, the proximal end portion 21a of the screw bar 21 has a second engagement portion 52 that engages with a 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 disposed in a space inside the base member 50. In the example shown in fig. 3, the cross-sectional shape of the second engagement portion 52 (the cross-sectional shape of a plane perpendicular to the longitudinal axis AX of the screw 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 for operating the tool 1A by using the remote operation tool will be described. As a preparatory step, the fixed portion of the remote operation tool is engaged with the first engaging portion 51, and the movable portion of the remote operation tool is engaged with the second engaging portion 52. Thereafter, the remote operation tool is operated to actuate the movable portion of the remote operation tool (for example, rotate about the longitudinal axis AX of the screw bar 21). When the movable portion of the remote operation tool is actuated, the second engagement 52 connected to the movable portion is actuated (e.g., rotated about the longitudinal axis AX of the screw bar 21). When the second engaging portion 52 is actuated, the screw rod 21 rotates about the longitudinal axis AX of the screw rod 21. Since the mechanism for converting the rotation of the screw bar 21 into the opening and closing operations of the first member 11 and the second member 12 has been described, the redundant description thereof will be omitted.

In the example shown in fig. 3, the tool 1A includes a base member 50 that supports the screw bar 21, and the base member 50 includes 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 gripping an object distant from the operator. The tool 1A further includes a second engaging portion 52 that engages with the movable portion of the remote operation tool, in addition to the first engaging portion 51 that engages with the fixed portion of the remote operation tool. Therefore, the tool 1A supported via the first engaging portion 51 can be stably operated via the second engaging portion 52.

(third member 13 and fourth member 14)

In the example shown in fig. 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 operating portion 13a that can be brought into contact with an object to be gripped or cut, and the fourth member 14 has a fourth operating portion 14a that can be brought into contact with an object to be gripped or cut.

In the example shown in fig. 3 and 4, the first working portion 11a is a first blade, the second working portion 12a is a second blade, the third working portion 13a is a first gripping portion, and the fourth working portion 14a is a second gripping portion. In this case, when the object is held by the third working portion 13a and the fourth working portion 14a, the object can be cut by the first working portion 11a and the second working portion 12 a. This can suppress the positional deviation of the object during cutting. Alternatively, the first operating portion 11a and the second operating portion 12a may be gripping portions, and the third operating portion 13a and the fourth operating portion 14a may be cutting portions.

In the example shown in fig. 3 and 4, the third member 13 is rotatable about the first axis AX 1. More specifically, the third member 13 is rotatably supported by the latch member P1. By rotating the first member 11 and the third member 13 about the common axis (the first axis AX1), the cooperative operation of the first member 11 and the third member 13 (the cooperative operation of the gripping operation and the cutting operation) can be smoothly performed.

In the example shown in fig. 3 and 4, the fourth member 14 is rotatable about the second axis AX 2. More specifically, the fourth member 14 is rotatably supported by the latch member P1. By rotating the second member 12 and the fourth member 14 about the common axis (the second axis AX2), the cooperative operation (the cooperative operation of the gripping operation and the cutting operation) of the second member 12 and the fourth member 14 can be smoothly performed. The first axis AX1 and the second axis AX2 may or may not be coaxial.

The tool 1A may further include a pressing member 92, and the pressing member 92 may press the third member 13 (more specifically, the third acting portion 13a) and the fourth member 14 (more specifically, the fourth acting portion 14a) in a closing direction. The pressing member 92 is, for example, a torsion coil having a first end contacting the third member 13 and a second end contacting the fourth member 14.

When the tool 1A includes the pressing member 92, the object can be stably gripped by the third working portion 13a and the fourth working portion 14a by the pressing force of the pressing member 92. Further, when the object is gripped by the pressing force of the pressing member 92, an excessive gripping force does not act on the object. Accordingly, the object is gripped by the third operating portion 13a and the fourth operating portion 14a, and the object is not damaged.

In the example shown in fig. 3 and 4, the third member 13 includes a first operation portion 131 operated by the first member 11. Further, the fourth member 14 has a second operation portion 141 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 presses the first operation portion 131, and the second member 12 presses the second operation portion 141. In this way, the third member 13 (more specifically, the third acting portion 13a) and the fourth member 14 (more specifically, the fourth acting portion 14a) can change the state from the closed state to the open state against the pressing force of the pressing member 92.

In the example shown in fig. 3 and 4, the arm portion 11b of the first member 11 (the portion closer to the base end side than the first axis AX1) presses the first operation portion 131, and the arm portion 12b of the second member 12 (the portion closer to the base end side than the second axis AX2) presses the second operation portion 141.

(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 in a direction along the longitudinal direction axis AX of the threaded rod 21). Further, in a plan view, the movable block 23 has a first recess 231 (more specifically, a first receiving groove) and a second recess 232 (more specifically, a second receiving groove), the first recess 231 receiving the first base end portion 30a of the first coupling member 30, and the second recess 232 receiving the second base end portion 40a of the second coupling member 40.

In the example shown in fig. 5, the first recess 231 and the second recess 232 are disposed in the edge region of the movable block 23. In the example shown in fig. 5, the first recess 231 and the second recess 232 are disposed to sandwich the screw hole portion 23 h. As shown in fig. 5, the first recess 231 may be arranged axisymmetrically with respect to the second recess 232 with respect to the screw portion 23 h. In this case, the force acting on the movable block 23 is transmitted substantially uniformly to the first coupling member 30 disposed in the first recess 231 and the second coupling member 40 disposed in the second recess 232. In the example shown in fig. 5, a straight line L3 passing through the center C1 of the first recess 231 and the center C2 of the second recess 232 is inclined with respect to a straight line L4 in a plan view (in other words, viewed along the longitudinal axis AX of the screw rod 21), and the straight line L4 is a straight line parallel to the width direction of the movable block 23. Alternatively, a straight line L3 passing through the center C1 of the first recess 231 and the center C2 of the second recess 232 may also be parallel to a straight line L4, the straight line L4 being a straight line parallel to the width direction of the movable block 23.

In the example shown in fig. 5, the movable block 23 is formed with a first housing hole 233 for housing the latch member P3 and a second housing hole 234 for housing the latch member P5. When the first coupling member 30 is disposed in the first recess 231, the latch member P3 is inserted into the first receiving hole 233, so that the first coupling member 30 is rotatably supported by the latch member P3. In addition, when the second coupling member 40 is disposed in the second recess 232, the latch member P5 is inserted into the second receiving hole 234, so that the second coupling member 40 is rotatably supported by the latch member P5.

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 23 h. 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 23 h.

(second embodiment)

A tool 1B in the second embodiment is explained with reference to fig. 6. Fig. 6 is a schematic plan view of a tool 1B according to the second embodiment. A schematic front view of the tool 1B is shown on the left side of fig. 6, and a schematic side view of the tool 1B is shown on the right side of fig. 6.

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

In the second embodiment, points different from those in the first embodiment will be mainly described, and redundant description of the items 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.

The tool 1B according to the second embodiment includes the first member 11, the second member 12, and the state changing mechanism 2, as in the tool 1A according to the first embodiment, and the state changing mechanism 2 includes the threaded rod 21, the movable block 23, the first coupling member 30, and the second coupling member 40.

In the example shown in fig. 6, the first axis AX1 (or the plug member P1) is disposed between the first member 11 and the second member 12. The first member 11 and the second member 12 are coupled via a coupling member 93. A plug member P7 is inserted through the coupling member 93 and the first member 11, and the first member 11 is rotatable relative to the coupling member 93 about the central axis of the plug member P7. Further, a plug member P8 is inserted through the coupling member 93 and the second member 12, and the second member 12 is rotatable relative to the coupling member 93 about the central axis of the plug member P8.

In the example shown in fig. 6, the first axis AX1 is disposed between the first member 11 and the second member 12, and the first member 11 and the second member 12 are coupled to each other via a coupling member 93. Alternatively, as shown in the example shown in fig. 1, the first axis AX1 may be disposed so as to penetrate the first member 11 and the second member 12, and the first member 11 and the second member 12 may be coupled via a plug member P1. Conversely, the coupling 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 first acting portion 11a of the first member 11 is a first gripping portion, and the second acting portion 12a of the second member 12 is a second gripping portion. Alternatively, the first working portion 11a may also be a first blade, and the second working portion 12a may also be a second blade.

In the second embodiment, the screw bar 21 and the movable block 23 may have the same configuration as in the first embodiment. Of course, the shape and structure of the screw bar 21 and the movable block 23 may be modified arbitrarily.

In the example shown in fig. 6, the distal end portion of the screw bar 21 is coupled to the plug support member 91 via the fixing member 22, as in the example shown in fig. 1. However, the plug member supported by the plug support member 91 is a plug member P1 (first plug member) in the example shown in fig. 1, and is a plug member P9 (sixth plug member) described later in the example shown in fig. 6.

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 coupled to the movable block 23 so as to be rotatable about the third axis AX3 (more specifically, the plug member P3). Further, the distal end portion of the first arm member 31 is coupled to the proximal end portion of the second arm member 32 so as to be rotatable about the first coupling axis AC1 (more specifically, the latch member P10). Further, the distal end portion of the second arm member 32 is rotatably coupled to the first member 11 about a fourth axis AX4 (more specifically, a latch member P4).

The second coupling 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 about the fifth axis AX5 (more specifically, the plug member P5). Further, the distal end portion of the third arm member 41 is rotatably coupled to the proximal end portion of the fourth arm member 42 about a second coupling axis AC2 (more specifically, a latch member P11). Further, the distal end portion of the fourth arm member 42 is coupled to the second member 12 so as to be rotatable about the sixth 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 via the first coupling member 30 (more specifically, the first arm member 31 and the second arm member 32). Similarly, the force acting on the movable block 23 can be transmitted to the second member 12 via the second coupling member 40 (more specifically, the third arm member 41 and the fourth arm member 42).

In the example shown in fig. 6, the second arm member 32 is rotatable about the third coupling axis AC3, and the fourth arm member 42 is rotatable about the third coupling axis AC 3. More specifically, the intermediate portion of the second arm member 32 (the portion between the first coupling axis AC1 and the fourth axis AX 4), and the intermediate portion of the fourth arm member 42 (the portion between the second coupling axis AC2 and the sixth axis AX 6) are supported by the plug member P9 via the third coupling axis AC 3. Further, the second arm member 32 and the fourth arm member 42 intersect each other on the third link axis AC 3.

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

In the state shown in fig. 6, the screw bar 21 is rotated in the first rotational direction. The screw 21 is rotated by, for example, operating the base end 21a of the screw (more specifically, rotating the base end 21a of the screw 21 about the longitudinal axis AX of the screw 21).

When the threaded rod 21 rotates in the first rotational 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 DR 1.

When the movable block 23 moves in the first direction DR1, the distance between the movable block 23 and the third coupling shaft AC3 changes (more specifically, the distance between the movable block 23 and the third coupling shaft AC3 becomes shorter). When the distance between the movable block 23 and the third coupling shaft AC3 becomes shorter, the first coupling shaft AC1 (and the second coupling shaft AC2) moves in a direction away from the screw rod 21.

When the first coupling axis AC1 moves in a direction away from the screw bar 21, the base end portion of the first arm member 31 rotates about the third axis AX3, and the second arm member 32 rotates about the third coupling axis AC 3. When the second arm member 32 rotates about the third coupling axis AC3 and the distal end portion of the second arm member 32 moves in a direction away from the longitudinal axis AX of the screw 21, the first member 11 rotates about the first axis AX 1. In this way, the first working portion 11a of the first member 11 moves in a direction approaching the second working portion 12 a.

When the second coupling axis AC2 is moved away from the screw 21, the base end of the third arm member 41 rotates about the fifth axis AX5, and the fourth arm member 42 rotates about the third coupling axis AC 3. When the fourth arm member 42 rotates about the third connecting axis AC3 and the distal end portion of the fourth arm member 42 moves in a direction away from the longitudinal axis AX of the screw 21, the second member 12 rotates about the first axis AX 1. In this way, the second working portion 12a of the second member 12 moves in a direction approaching the first working portion 11 a.

When the first working portion 11a and the second working portion 12a approach each other, the object is gripped or cut by the first working portion 11a and the second working portion 12 a.

The tool 1B of the second embodiment can exhibit the same effects as the tool 1A of the first embodiment. In the example shown in fig. 6, each of the coupling members (30, 40) has 2 arm members, but the number of arm members included in each of the coupling members may be 3 or more. In the example shown in fig. 6, the second arm member 32 and the fourth arm member 42 are arranged so as to intersect with each other, but 2 members other than the second arm member 32 and the fourth arm member 42 may be arranged so as to intersect with each other. For example, the first member 11 and the second member 12 may also be arranged to cross each other.

In the example shown in fig. 6, movable block 23, first arm member 31, second arm member 32, third arm member 41, and fourth arm member 42 are arranged in a pentagonal shape. However, the member disposed in the pentagonal shape is 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. Any 5 members among the movable block 23, the first member 11, the second member 12, the 1 or more support arm members constituting the first coupling member 30, and the 1 or more support arm members constituting the second coupling member 40 may be arranged in a pentagonal shape.

The present invention is not limited to the above embodiments, and it is clear that the embodiments may be modified or changed as appropriate within the scope of the technical idea of the present invention. In addition, any of the components used in the embodiments may be combined with any of the other embodiments, and any of the components may be omitted in the embodiments.

Industrial applicability

With the tool of the present invention, it is possible to stably transmit force to the action portion of the tool. Therefore, the present invention is useful for a worker who performs work by gripping a tool such as a tool or a cutting tool, and a worker who manufactures a tool such as a gripping tool or a cutting tool.

Description of the symbols

1. 1A, 1B tools

2: state changing mechanism

11 first part

11a first acting part

11b arm part

12 second part

12a second acting part

12b arm part

Third part 13

13a third acting part

Fourth component 14

14a fourth acting part

21: threaded rod

21a base end portion

22 fixing member

23 movable block

23h screw hole part

24a base end side stopper

24b front end side stopper

30 first connecting part

30a first base end part

30b front end portion

31 first arm Member

32 second arm part

40 second connecting member

40a second basal end

40b front end portion

Third arm part 41

42 fourth arm part

50 base part

51 first engaging part

52 second engaging part

91 bolt support part

92 pressing part

93 connecting member

131 the first operating part

141 second operation part

231 first recess

232 second recess

233 first receiving hole

234 second receiving hole

AC1 first connecting shaft

AC2 second connecting shaft

AC3 third connecting shaft

AX (longitudinal axis)

AX1 first axis

AX2 second axis

AX3 third shaft

AX4 fourth axis

AX5 fifth shaft

AX6 sixth axis

P1, P3-P11 plug part

SP space

Claims

1. A tool having:

a first part, comprising a first action part capable of contacting the grasped object or cutting the object, that is, the object, and rotatable around the first axis;

a second member including a second action portion that can contact the object and is rotatable about a second axis; and

A state changing mechanism that rotates the first member around the first axis and rotates the second member around the second axis, thereby causing the first member and the second member to rotate. The state of the part is changed from the open state to the closed state,

The state change mechanism includes:

threaded rod;

The movable block is screwed to the threaded rod;

a first connecting member connecting the movable block and the first member; and

a second connecting member for connecting the movable block and the second member,

The state of the first member and the second member is changed from the open state to the closed state by the axial movement of the movable block along the longitudinal direction of the screw rod.

2. The tool of claim 1, wherein the first shaft is coaxial with the second shaft.

3. The tool of claim 1, wherein,

When the movable block moves in the direction of approaching the first member and the second member, the state of the first member and the second member is changed from the open state to the closed state .

4. The tool of claim 2, wherein,

5. The tool of any one of claims 1 to 4, wherein,

The first connecting member has a first base end portion, and the first base end portion is rotatably connected with respect to the movable block body,

The second connecting member has a second base end portion, and the second base end portion is rotatably connected with respect to the movable block body,

In a frontal view, 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.

6. The tool of any one of claims 1 to 4, further comprising:

a base member rotatably supporting the threaded rod,

The base member has a first engaging portion engaged with the fixing portion of the remote operation tool,

The base end portion of the threaded rod has a second engaging portion that engages with the movable portion of the remote control tool.

7. The tool of any one of claims 1 to 4, further comprising:

a third member including a third action portion that can contact the object and is rotatable about the first axis; and

The fourth member includes a fourth action portion that can contact the object and is rotatable around the second axis.

8. The tool of any one of claims 1 to 4, wherein,

The first connecting member is connected to the movable block in a rotatable manner around a third axis,

The first connecting member is connected to the first member so as to be rotatable around a fourth axis,

The second connecting member is connected to the movable block in a rotatable manner around the fifth axis,

The second connecting member is connected to the second member so as to be rotatable around a sixth axis.

9. The tool of any one of claims 1 to 4, wherein,

The first connecting member includes a first arm member and a second arm member,

The base end of the first arm member is connected to the movable block so as to be rotatable around a third axis,

The front end portion of the first arm member is connected to the base end portion of the second arm member so as to be rotatable around a first connecting shaft,

The front end portion of the second arm member is connected to the first member so as to be rotatable around a fourth axis,

The base end portion of the third arm member is connected to the movable block so as to be rotatable around the fifth axis,

The front end portion of the third arm member is connected to the base end portion of the fourth arm member so as to be rotatable around the second connecting shaft,

A front end portion of the fourth arm member is connected to the second member so as to be rotatable around a sixth axis.

10. The tool of any one of claims 1 to 4, wherein,

The movable block, the first member, the second member, one or more arm members constituting the first connecting member, and one or more arm members constituting the second connecting member Any five parts among them are arranged in a pentagon shape.