JP4990025B2 - Universal grip stick - Google Patents

Description

  The present invention relates to a universal gripping stick capable of gripping various objects in a hot wire operation such as a high-voltage distribution line.

  Conventionally, in a hot wire operation such as a high-voltage distribution line, a dedicated tool or jig has been used when gripping an insulator, an electric wire, a cut-out, or the like. Therefore, it is necessary to prepare a set of dedicated tools according to each member, which is inconvenient to carry, requires space for storage, and is costly. In the live-line work, there are many objects to be grasped having a substantially cylindrical shape, and it is preferable that there is a tool that can be grasped regardless of the size of these diameters.

  Patent Document 1 discloses a hot hand for stably holding work objects having various shapes and sizes. This hot hand has a gripping tool for gripping a work object, an insulating main operation rod for positioning a gripping tool fixed to the tip at a work position, and an insulating auxiliary operation for opening / closing the gripping tool connected to the tip. The rod is pivotally connected to the base end of the auxiliary operation rod, and the handle is operated by reciprocating the auxiliary operation rod in the length direction by the action of the lever, and attached to the fulcrum position of the handle lever. The rotating shaft for operation which supports the bearing-like one-way clutch which uses a roller, and the latching mechanism which fixes and open | releases rotation of the rotating shaft for operation in arbitrary positions.

JP 7-298436 A

  However, since the inner surface of the gripping tool is curved and the tip is formed in a straight line, the hot hand disclosed in Patent Document 1 cannot grip gripping objects of various sizes stably. In other words, depending on the size of the diameter of the object, it may be gripped only at two points on the inner side surfaces of the opposing gripping tools, making it unstable. Furthermore, since no cutter blade is provided, it cannot be used as a cutting tool. In addition, since the angle adjustment mechanism of the gripping tool is not provided, it is difficult to apply to the vicinity of the armrest of the utility pole in a state where the electric wire and the insulator are arranged in an intricate manner. In addition, since the movable mechanism of the gripping tool is formed as an auxiliary operation rod separately from the main operation rod (rod body), the entire tool is bulky and not easy to handle.

  The present invention is based on the above prior art, and can stably hold an object of various shapes and sizes, and further, the object is cut as necessary and held as it is. The object is to provide a universal gripping stick that can easily grip an object even in a place where members are intricate, improves workability, has good operability, and is easy to handle. .

In order to achieve the above object, in claim 1, a cylindrical rod main body and three claw members provided at the tip of the rod main body are provided , and two of the claw members are fixed in parallel. A claw, and the other one is a movable claw provided so as to be freely inserted between the fixed claws, and rotatable about a root portion as a fulcrum. By closing the claw member, it can be gripped from the direction facing the object to be grasped, and the claw member is attached to the side surface of the rod body via a bracket, and the bracket has a through-hole inside the periphery. A plurality of flange portions are formed, and the flange portions are rotatably supported on the side surfaces of the rod main body at the central portion thereof, and the rod main body is inserted into the rod main body via a knob inserted through the tip of the rod main body and the through hole. It is fixed to the movable nail side of the fulcrum One end of the piston member through the insertion hole provided in the shaft support portion of the flange portion is pivotally supported, and the other end of the piston member is slidably provided in the rod body via the link member. Connecting, extending the other end of the middle shaft to the rear end of the rod body, connecting the operation hand provided at the rear end to the middle shaft so that the middle shaft is interlocked with the movement of the operation handle, and the claw member The inner surface of the gripping side has a substantially V-shaped groove, and one end of the V-shaped groove is formed with a concave curved surface that is curved inwardly, and one side of the rear end is convexly curved with a curved outwardly side. An all-purpose gripping stick is provided.

  According to a second aspect of the present invention, the knob can be picked up against an internal elastic spring.

Further, the invention of claim 3 is characterized in that a cutter blade is provided on each of the roots of the gripping side inner surface of the movable claw of the opposing claw member and one fixed claw .

According to a fourth aspect of the present invention, each of the cutter blades is in sliding contact with the blade tip portion when the claw is closed, and is in a position corresponding to the cutter blade at the base portion on the grip side inner surface of the opposing claw member. is characterized in that clamping capable ridge cutting object is cut by the cutter blade projecting from the opposite direction are respectively formed.

  According to the first aspect of the present invention, the bracket can be rotated with respect to the rod body by changing the through hole through which the knob is inserted, and accordingly, the claw member is also rotated with respect to the rod body. As a result, the claw member can be rotated so that it can be easily inserted around the armrest of the power pole in the loaded pole state where the electric wires and insulators are arranged in an intricate manner. Can be used. Therefore, workability is improved, operability is good, and handling properties are excellent.

In addition, according to the present invention, since the one end of the substantially V-shaped groove on the inner side surface of the claw member is formed with a concave curved surface, and the one side of the rear end continuous with this is formed with a convex curved surface, there are various shapes. Thus, it is possible to stably grip a gripping object having a size. That is, since the inner side surface of the tip portion of the claw member that grips the object from both sides is formed as a concave curved surface, the contact point between the target portion and the claw member can be the tip portion of the claw member. An object can be prevented from falling off the claw member. In addition, a convex curved surface is formed on the inner surface of the claw member continuously with the concave curved surface, so that the convex curved surface abuts on the object and grips the object reliably and stably together with the concave curved surface. can do. Therefore, workability is improved, operability is good, and handling properties are excellent.

According to the invention of claim 2, since the knob can be picked up against the built-in elastic spring, it is possible to easily pick up the knob and change the through hole through which the knob is inserted. Therefore, the rotation operation of the bracket can be easily performed.

According to invention of Claim 3 , even when the situation which cut | disconnects a target object in a work process arises, it can cut | disconnect using the cutter blade with which the base part of the inner surface of the opposing nail | claw member is equipped. For this reason, it is not necessary to prepare a cutting-dedicated tool at the time of cutting work, and work can be performed quickly. Therefore, workability is improved, operability is good, and handling properties are excellent.

According to invention of Claim 4 , when a target object is cut | disconnected by the sliding operation | movement of a cutter blade, the target object cut | disconnected by the protrusion part can be clamped and hold | maintained. For this reason, it can bring to the hand in the state which clamped the cut | disconnected target object. Therefore, the cut object does not fall and damage the object below, and the workability is improved, the operability is good, and the handleability is excellent.

  The present invention has a rod main body and at least two claw members provided at the tip of the rod main body, and at least one of the claw members is a movable claw capable of rotating around a root portion, By rotating the movable claw and closing the claw member, the claw member can be sandwiched and held from the direction facing the object to be grasped, and the claw member is attached to the rod body via a bracket, It has a flange portion formed with a plurality of through holes on the inner side, and the flange portion is pivotally supported by the rod body at the center portion, and via a knob passing through the tip of the rod body and the through hole. It is a universal grip stick that is fixed to the rod body, has improved workability, has good operability, and is easy to handle.

  FIG. 1 is a schematic cross-sectional view of a universal grip stick according to the present invention.

  As shown in the drawing, the universal gripping stick 1 according to the present invention includes a claw member 2 and a rod body 3. The claw member 2 is composed of a movable claw 4 that can be rotated about a root portion as a fulcrum, and a fixed claw 5 provided so as to face the claw member 2. The object 9 is held by the movable claw 4 and the fixed claw 5. The rod body 3 is provided with an operation handle 6 for rotating the movable claw 4. In the figure, both the state before the operating handle 6 is gripped and the state where it is gripped are shown. The rod body 3 includes a hollow outer cylinder 3a, an operation handle portion 3b, an outer cylinder 3c, and an extended outer cylinder 3d. In the rod main body 3, a middle shaft 8 is disposed so as to be slidable in the front-rear direction. The middle shaft 8 slides in the rod body 3 in conjunction with the operation handle 6 to rotate the movable claw 4. The extension outer cylinder 3d is a rod-like member that can be appropriately attached when the object 9 is at a high position. 7 is an umbrella-shaped safety fence that plays the role of rain.

  2 and 3 are schematic cross-sectional views in the vicinity of the claw member of the universal grip stick according to the present invention. FIG. 2 shows a state when a large-diameter object is gripped, and FIG. 3 shows a small-diameter object. The state when grasped is shown.

  The middle shaft 8 is connected to the movable claw 4 via the link member 10 and the piston member 11. When the middle shaft 8 is pulled rearward (downward in FIG. 2), the link member 10 pushes down the piston member 11 (moves to the left in FIG. 2), and accordingly, the shaft member 12 provided at the base of the movable claw 4 is supported as a fulcrum. As a result, the movable claw 4 rotates in the direction of the fixed claw 5, and the movable claw 4 and the fixed claw 5 are closed. The sliding movement of the middle shaft 8 is performed by grasping the operation handle 6 (see FIG. 1). Thereby, the object 9 can be gripped by the claw member 2. The movable claw 4 and the fixed claw 5 are covered with an insulating cover 13.

  Convex curved surfaces 4a and 5a that are concaved inward and curved are formed at the tip end portions of the gripping side inner surfaces of the movable claw 4 and the fixed claw 5, and convex curved surfaces that bulge outward and continue to the concave curved surfaces 4a and 5a. 4b and 5b are formed. When the inner surface of the movable claw 4 and the fixed claw 5 has such a shape, when the object 9 having a large diameter as shown in FIG. 2 is gripped, the movable claw 4 and the fixed claw 5 are formed by the concave curved surfaces 4a and 5b. Is in contact with the object 9 at the tip, and the convex curved surfaces 4 b and 5 b are in contact with the object 9 together with this. Therefore, the object 9 is supported by the movable claw 4 and the fixed claw 5 at four points in a side view, and can be gripped reliably and stably. Further, as described above, by curving the tip of the claw member 2 (movable claw 4 and fixed claw 5) like the concave curved surfaces 4a and 5a, the opening angle of both claws 4 and 5 can be narrowed, and the object 9 can be prevented from falling off the claw member 2. Therefore, workability is improved, operability is good, and handling properties are excellent.

  Further, when the object 9 having a small diameter as shown in FIG. 3 is gripped, the object 9 is pressed toward the tip of the claw member 2 by the convex curved surfaces 4b and 5b, and the concave curved surfaces 4a and 5a receive this. The object 9 is gripped. For this reason, the contact area with respect to the target object 9 of the inner surface of the nail | claw member 2 will spread, and the target object 9 can be hold | gripped reliably and stably. The concave curved surfaces 4c and 5c may be further formed continuously with the convex curved surfaces 4b and 5b so that the object 9 having a small diameter can be gripped.

  Cutter blades 14 are respectively provided at the roots of the inner surfaces of the movable claw 4 and the fixed claw 5. Thereby, even when the situation which cut | disconnects the target object 9 arises in an operation | work process, it can cut | disconnect using the cutter blade 14. FIG. For this reason, even if the object 9 is cut in the middle of the work, it is possible to work quickly without the need for preparing a tool dedicated to cutting. On the distal end side of the claw member 2 of the cutter blade 14, a protruding member 22 is provided for preventing the object 9 from being accidentally inserted into the cutter blade 14 portion. Therefore, workability is improved, operability is good, and handling properties are excellent.

  The movable claw 4 and the fixed claw 5 are attached to the rod body 3 through a bracket 15 by a knob 16 with a built-in elastic spring. The knob 16 is inserted through a through hole 18 provided in the flange portion 17 of the bracket 15. As will be described later, a plurality of the through holes 18 are provided in the flange portion 17 (see FIG. 7).

  4A is a side view of the movable claw, and FIG. 4B is a plan view. FIG. 5A is a side view of the fixing claw, and FIG. 5B is a bottom view.

  As shown in FIG. 4, the base portion of the movable claw 4 is divided into two portions, and is composed of a side plate 19 a to which the cutter blade 14 is attached and a side plate 19 b on which the ridge portion 20 is formed. The cutter blade 14 is fitted into a groove 21 formed in the side plate 19a and is screwed. The protruding portion 20 is formed to be higher than the upper surface 24 of the opposing side plate 19a. 12a is a shaft hole.

  As shown in FIG. 5, similarly to the movable claw 4, the fixed claw 5 is also composed of a side plate 23 a to which the root portion is divided into two forks and the cutter blade 14 is attached, and a side plate 23 b on which the ridge portion 20 is formed. The protruding portion 20 is formed to be higher than the upper surface 25 of the opposing side plate 23a. Moreover, the holding part of the fixed claw 5 is also divided into two parts. The movable claw 4 rotates so as to pass through this interval. Thus, by forming the gripping structure of the object 9 with the three claw members, it is possible to grip more reliably and stably. In particular, it is possible to grip a complicated structure such as a multi-pleat structure or a solid insulator, which is unique to an insulator. In addition, in combination with the shape of the inner surface of the claw member 2 (movable claw 4 and fixed claw 5) described above, it is possible to grip various shaped members without carrying a dedicated tool. Workability is improved, operability is good, and handling is excellent.

  FIG. 6 shows a state in which the object 9 is cut, and is a schematic cross-sectional view of the base portion of the claw member.

  As shown in the figure, when the object 9 is inserted up to the roots of the movable claw 4 and the fixed claw 5 and the movable claw 4 is closed, the cutter blades 14 and 14 come into sliding contact with each other to cut the object 9. At this time, the protrusions 20 and 20 of the movable claw 4 and the fixed claw 5 sandwich the object 9. Thereby, the cut | disconnected target object 9 can be brought to a hand in the state clamped by the protrusion parts 20 and 20, and electric wire cutting operations, such as PD wire, can be performed more simply and safely. Therefore, workability is improved, operability is good, and handling properties are excellent.

  FIG. 7A is a plan view of the bracket, and FIG. 7B is a side view.

  The bracket 15 includes an attachment piece 26 having a U-shaped cross section and a flange portion 17 that is in contact with one side surface of the attachment piece 26. Both side plates of the mounting piece 26 are provided with mounting holes 27 and 28 for mounting the movable claw 4 and the fixed claw 5. The shaft member 12 (see FIGS. 2 and 3) is inserted into the mounting hole 27, and the movable claw 4 is rotatably mounted. The fixing claw 5 is fixed to the mounting hole 28 by a countersunk screw (not shown). The flange portion 17 has a disk shape, and a plurality of through holes 18 are provided on the inner periphery of the flange portion 17 at a predetermined angle interval from the center (in the figure, 12 at 30 ° intervals). As described above, the knob 16 is inserted into the through hole 18, and the claw member 2 is attached to the rod body 3 via the bracket 15. Reference numeral 29 denotes an insertion hole through which the piston member 11 (see FIGS. 2 and 3) is inserted.

  The bracket 15 is rotatably attached to the head portion of the rod body 3 with the flange portion 17 in contact therewith. The above-described insertion hole 29 is formed at the center of rotation, and the piston member 11 (see FIGS. 2 and 3) is inserted therethrough. The piston member 11 is rotatably attached to the root portion of the movable claw 4. Therefore, the bracket 15 and the claw member 2 can be operated at any inclination. The angle of the claw member 2 with respect to the rod body 3 can be changed by rotating the bracket 15 while raising the knob 16 and changing the through hole 18 through which the knob 16 is inserted. Thereby, the claw member 2 can be rotated so that it can be easily inserted around the armrest of the pole of the electric pole in the state where the electric wire and the insulator are arranged in an intricate manner, and the universal grip stick according to the present invention can be used regardless of the application place. 1 can be used. Therefore, workability is improved, operability is good, and handling properties are excellent. Further, since the knob 16 can be lifted up against a built-in elastic spring built in the knob 16 and urged toward both ends of the knob 16, the knob 16 can be easily lifted and the knob 16 is inserted. The through-hole 18 to be changed can be changed. Therefore, the rotation operation of the bracket 15 can be easily performed.

  FIG. 8 is a bottom view of the vicinity of the claw member of the universal grip stick according to the present invention.

  (A) shows a state when the claw member 2 is aligned with the rod body 3 in the axial direction, and (B) shows a state when the claw member 2 is perpendicular to the rod body 3. In addition, the movable claw 4 is in a state of being rotated and closed with respect to the fixed claw 5. As illustrated, the claw member 2 rotates with respect to the rod body 3 together with the bracket 15. The rotation mechanism is performed by changing the position of the through hole 18 through which the knob 16 at the tip of the rod body is inserted, as described above. Since the claw member 2 can be rotated in this way and the claw member can be approached from various angles with respect to the object to be grasped, the object can be inserted by inserting the rod body 3 even if the application place is complicated by the column member. Can be securely gripped.

  9 is an enlarged view of part A in FIG. 1, and FIG. 10 is an enlarged view of part B in FIG.

  As shown in FIG. 9, the middle shaft 8 is slidably disposed in the outer cylinder 3 a on the distal end side of the rod body 3. A connecting member 30 is attached to the tip of the middle shaft 8 and is connected to the link member 10 (see FIGS. 2 and 3). Accordingly, the movable claw 4 is rotated via the connecting member 30, the link member 10, and the piston member 11 by the middle shaft 8 sliding in the front-rear direction within the rod body 3. A cylindrical sliding member 31 is fixed between the outer cylinder 3 a and the connecting member 30 by a countersunk screw 32. The connecting member 30 is in sliding contact with the sliding member 31. On the sliding surface of the sliding member 31 with the connecting member 30, a packing material 33 having an annular shape and a Y-shaped cross section with an open head at one end is disposed. Since this packing material 33 has an open head, the effect of preventing water from the head is high. This head is disposed toward the front end side of the outer cylinder 3a. For this reason, the water immersion from the front-end | tip part of the rod main body which is easy to be immersed can be suppressed effectively.

  The packing material 33 contacts the connecting member 30 only at the head. Since the packing material 33 is made of rubber or the like, the friction coefficient is high. However, the friction coefficient can be reduced by contacting the connecting member 30 only with the head. Therefore, the middle shaft 8 can be slid smoothly. Therefore, workability is improved, operability is good, and handling properties are excellent.

  As shown in FIG. 10, the joint portion between the outer cylinder 3a and the operation handle portion 3b, that is, the rear end portion of the outer cylinder 3a has the same configuration as the tip portion as shown in FIG. That is, the sliding member 31 is fixed inside the outer cylinder 3 a, and the packing material 33 is disposed on the sliding surface with the connecting member 30 attached to the middle shaft 8. At this time, the head portion of the packing material 33 is disposed with the operation handle portion 3b side, that is, the rear end portion side facing. Thereby, inundation from a joint part can be prevented efficiently. Other configurations, operations, and effects are the same as those in FIG.

  FIG. 11 is a schematic cross-sectional view of the universal grip stick according to the present invention in the vicinity of the operation handle, and FIG. 12 is a schematic cross-sectional view of the vicinity of the operation handle when the operation handle is gripped.

  The operation handle portion 3 b includes a cover body 35 that connects the outer cylinder 3 a and the outer cylinder 3 c of the rod body 3, a ratchet mechanism 34, and the operation handle 6. The operation handle 6 is formed in a substantially L shape and is pivotally supported by a handle shaft 36. The ratchet mechanism 34 includes a ratchet 37, a lock lever 38 that engages with its teeth, and a spring 39 that applies elastic force to the lock lever 38 that is always engaged with the ratchet 37. The lock lever 38 can be kept floating against the spring 39. This operation is performed by rotating the lever 43 around the shaft 44 as a fulcrum. That is, when the lever 43 is in the A state, the spring 39 is biased and the lock lever 38 is engaged with the ratchet 37. On the other hand, when the lever 43 is in the B state, the lock lever 38 is held against the force of the spring 39 and is not engaged with the ratchet 37. The figure shows the lever 43 when the lock lever 38 is in a floating state.

  A swing shaft 40 is horizontally mounted on the operation handle 6 in the cover body 35. A movable shaft 41 connected to the connecting member 30 is passed through the swing shaft 40. Therefore, when the operation handle 6 is grasped, the middle shaft 8 slides rearward together with the swing shaft 40 as shown in FIG. At this time, the rear end portion of the middle shaft 8 is provided with a spring receiver 41a, which presses the return compression spring 42 and slides rearward. In a state where the operation handle 6 is gripped, the lock lever 38 is engaged with the ratchet 37, so that the middle shaft 8 does not slide forward by the return compression spring 42. When returning the middle shaft 8 to the front side, as shown in FIG. 11, the lock lever 38 is lifted and separated from the ratchet 37, and is slid forward by the elastic force of the return compression spring 42. As a result, the middle shaft 8 can be slid, and the movable claw 4 can be rotated to open and close the claw member 2.

  As described above, the universal gripping stick 1 according to the present invention can grip various shapes from the shape of the claw member 2 to be gripped. The objects include hydraulic cutters, hydraulic tools (compression heads), insulators, insulation rod operation rods, linear sleeves, linear sleeve covers, electric wires, cutouts, cutout confirmation jigs, cutout insertion jigs, clips, branches Wide range of sleeve covers, hot pullers, wire protection sheets, etc. In particular, the insulator can be held on the insulator umbrella or on the shaft. By using the claw member 2 formed of one movable claw 4 and two fixed claws 5 as described above, the movable claw 4 and the fixed claw 5 are used to grip the lever shaft ( Any one of them holds the slope portion of the lever shaft), and the remaining one of the fixed claws 5 supports the side surface of the folds of the lever by the side surfaces of the claws. Further, the tension insulator and the cut-out can be gripped by grasping the folds from an oblique direction.

1 is a schematic cross-sectional view of a universal grip stick according to the present invention. It is the cross-sectional schematic of the nail | claw part presence vicinity of the universal grip stick which concerns on this invention. It is the cross-sectional schematic of the nail | claw part presence vicinity of the universal grip stick which concerns on this invention. (A) is a side view of a movable nail | claw, (B) is a top view. (A) is a side view of a fixed nail | claw, (B) is a top view. It is the cross-sectional schematic of the base part of the nail | claw member which shows the state which cut | disconnected the target object. (A) is a top view of a bracket, (B) is a side view. It is a bottom view of the vicinity of the claw member of the universal grip stick according to the present invention. The A section enlarged view of FIG. The B section enlarged view of FIG. It is the cross-sectional schematic diagram of the operation handle vicinity of the universal grip stick which concerns on this invention. FIG. 3 is a schematic cross-sectional view of the vicinity of the operation handle when the operation handle of the universal grip stick according to the present invention is gripped.

Explanation of symbols

1: universal gripping stick, 2: claw member 2: rod body, 3a: outer cylinder, 3b: operation handle, 3c: outer cylinder, 3d: extension outer cylinder, 4: movable claw, 4a: concave curved surface, 4b: convex Curved surface, 4c: concave curved surface, 5: fixed claw, 5a: concave curved surface, 5b: convex curved surface, 5c: concave curved surface, 6: operation handle, 7: safety rod, 8: middle shaft, 9: object, 10: link member 11: Piston member, 12: Shaft member, 13: Insulating cover, 14: Cutter blade, 15: Bracket, 16: Knob, 17: Flange part, 18: Through hole, 19a, 19b: Side plate, 20: Projection part , 21: groove, 22: projecting member, 23a, 23b: side plate, 24: upper surface of the side plate 19a, 25: upper surface of the side plate 23a, 26: mounting piece, 27: mounting hole, 28: mounting hole, 29: insertion hole , 30: connecting member, 31: sliding member, 32: flat head screw, 33: pad 34: ratchet mechanism, 35: cover body, 36: handle shaft, 37: ratchet, 38: lock lever, 39: spring, 40: swing shaft, 41: movable shaft, 42: return compression spring, 43 : Lever, 44: Shaft

Claims (4)

A cylindrical rod body;
Three claw members provided at the tip of the rod body,
Two of the claw members are fixed claws provided in parallel, and the other one is provided so as to be able to be inserted between the fixed claws so as to be freely inserted, and is movable so as to be rotatable about the root portion as a fulcrum. It is a claw, and can be gripped by pinching from the direction facing the object to be grasped by rotating the movable claw and closing the claw member,
The claw member is attached to a side surface of the rod body via a bracket,
The bracket has a flange portion in which a plurality of through holes are formed on the inner periphery side,
The flange portion is rotatably supported on the side surface of the rod body at the center portion, and is fixed to the rod body through a knob that passes through the tip of the rod body and the through hole.
The movable claw is pivotally supported by one end of a piston member passing through an insertion hole provided in a shaft support portion of the flange portion beside the fulcrum, and the other end of the piston member is slid into the rod body via a link member. Connected to one end of the middle shaft provided freely, the other end of the middle shaft is extended to the rear end of the rod body, and the middle hand is linked to the movement of the operation handle between the operation hand provided at the rear end and the middle shaft. Concatenate as
The holding side inner surface of the claw member has a substantially V-shaped groove, and the tip side of the V-shaped groove is formed with a concave curved surface that is curved inwardly, and the rear end side is curved outwardly and curved. A universal gripping stick, characterized in that a convex curved surface is formed . The universal grip stick according to claim 1, wherein the knob can be picked up against a built-in elastic spring. 3. The universal gripping stick according to claim 1, wherein a cutter blade is provided at each of the roots on the gripping side inner surface of the one of the opposing pawl members and the movable pawl . 4. Each of the cutter blades protrudes in the facing direction at a position corresponding to the cutter blade at the root of the gripping inner side surface of the opposing claw member when the claw is closed and the blade tip portion is in sliding contact. The universal grip stick according to any one of claims 1 to 3, wherein ridges capable of sandwiching a cutting object cut by the cutter blade are formed.