JP2014079826A - Plier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plier capable of surely fixing, gripping or enlarging, even if a gripping object is a hose clip comprising an elastically-deformable wire-like circular ring.SOLUTION: In a plier 10 formed by crossing a pair of arms 20, 20' having jaw parts 16, 16' on each tip respectively, and used for gripping an object (knob part of a hose clip) between the jaw parts 16, 16' by allowing an operator to grip the pair of arms 20, 20' (more concretely, grip parts 18, 18'), when the pair of arms 20, 20' is gripped, the jaw parts 16, 16' of the pair of arms 20, 20' become mutually parallel, and a notched groove is formed on the facing side of the jaw parts 16, 16' of the pair of arms 20, 20'.

Description

  The present invention relates to a plier, and more particularly to a hose clip pliers used for attaching and detaching a hose clip.

  2. Description of the Related Art Conventionally, a hose clip plier has been proposed that can be reliably expanded in diameter without deforming the hose clip in the attaching / detaching operation of the hose clip (see, for example, Patent Document 1).

  The technique described in Patent Document 1 is such that the holding portion that holds the hose clip has a first holding portion that is closer to the tip and closer to the pin, and closer to the pin that engages the pair of members than the first holding portion. A second sandwiching portion having a wide interval is formed, and a convex curved surface is formed on the inner facing surface of the first sandwiching portion.

  By forming a convex curved surface on the inner facing surface of the first clamping part, when the hose clip is clamped, the knob part of the hose clip (the part that holds the hose clip) abuts and presses the curved surface. The tip of the first clamping part rotates while the outer periphery of the hose clip comes into contact with it, so that the knob part of the hose clip can be secured in a symmetrical position without deforming the hose clip. Can be held between.

JP 2008-238311 A

  However, the technique described in Patent Document 1 is intended for a hose clip in which a belt-like plate is formed in a circular shape and both ends are crossed to form a knob, and such a hose clip has the above effect. For example, for a hose clip made of a wire-like circular ring that is elastically deformable, the knob part moves and rotates in the clamping part, and the diameter of the hose clip can be expanded reliably. There was something I couldn't do.

  Therefore, the object of the present invention is to solve the above-mentioned problems, and even if the object to be clamped is a hose clip made of a wire-like circular ring that can be elastically deformed, it can be securely fixed or clamped and expanded in diameter. It is to provide a plier that can be made.

  In order to solve the above-described problem, according to claim 1, a pair of arms each having a jaw at the tip are crossed, and an operator is held between the pair of arms to hold the pair of arms. When the pair of arms are gripped, the jaws of the pair of arms are parallel to each other and cut out on the facing side of the jaws of the pair of arms. The groove is formed.

  In the pliers according to claim 2, the notch groove is formed so as to be opposed to the jaw portions of the pair of arms.

  The pliers according to claim 3 are configured such that a recess is formed in the notch groove.

  The pliers according to claim 4 are configured such that a spring is attached between the pair of arms.

  In the pliers according to the fifth aspect, the object is constituted by an elastically deformable clip.

  In the pliers according to the first aspect, a pair of arms each having a jaw at the tip thereof are crossed, and an operator is caused to grip the pair of arms so as to sandwich an object between the jaws. In the pliers, when the pair of arms are gripped, the jaw portions of the pair of arms are parallel to each other, and a notch groove is formed on the facing side of the jaw portions of the pair of arms. Even if the target object is a hose clip consisting of an elastically deformable wire-like circular ring, the hose clip is securely fixed or clamped by the notch grooves formed on the facing sides of the jaws of the pair of arms. The diameter can be increased.

  In the pliers according to the second aspect, since the notch groove is formed so as to be opposed to the jaw portions of the pair of arms, in addition to the effects described above, the object to be sandwiched is elastically deformable. Even a hose clip made of a wire-like circular ring can be more securely fixed or sandwiched and expanded in diameter.

  Since the pliers according to claim 3 are configured so as to form a recess in the cutout groove, in addition to the above-described effects, the object to be clamped is a hose clip formed of a wire-like circular ring that is elastically deformable. Even if it exists, it can fix or pinch still more reliably and can be expanded in diameter.

  In the pliers according to the fourth aspect, since the spring is attached between the pair of arms, the operability by the operator can be improved in addition to the effects described above.

  In the pliers according to the fifth aspect, since the object is constituted by an elastically deformable clip, in addition to the above-described effects, the hose clip can be more securely fixed or sandwiched and the diameter can be increased. .

It is a front view of the pliers concerning the example of this invention. It is a perspective view of the hose clip used with the pliers shown in FIG. FIG. 2 is a partially enlarged front view, a partially enlarged side view, an enlarged side view, and an enlarged plan view of a jaw portion of the pliers shown in FIG. 1. It is explanatory drawing for demonstrating the recessed part of a notch groove. It is the elements on larger scale of the jaw part which shows the modification of the jaw part shown in FIG. FIG. 2 is a partially enlarged front view of the pliers for explaining a state in which the pliers shown in FIG. 1 hold a hose clip.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments for implementing a plier according to the invention will be described with reference to the accompanying drawings.

  FIG. 1 is a front view of a plier according to an embodiment of the present invention. FIG. 1 (a) shows a state in which the jaw portion of the pliers is opened, and FIG. 1 (b) shows a closed state. FIG. 2 is a perspective view of a hose clip used in the pliers.

  First, a hose clip used in the plier according to this embodiment will be described with reference to FIG.

  The hose clip 12 is made of an elastically deformable metal material. As shown in FIG. 2, the hose clip 12 is formed by extending a circular ring 12a and both ends of the ring 12a. When this is done, it consists of knobs 12b and 12b 'for expanding the diameter of the ring 12a. When the knobs 12b and 12b 'are released from pressing, the ring 12a returns to its original shape (the shape shown in FIG. 2).

  The hose clip 12 is made of a single wire, and after one end is rounded to form a small circle forming a knob 12b, the ring 12a is further rounded to form a ring 12a, and the other end is also rounded. A small circle forming the portion 12b ′ is formed.

  The hose 14 is made of a rubber tube used for a vehicle fuel system or the like, and has a circular cross section corresponding to the diameter of the ring 12a. The hose 14 is inserted into the ring 12a when the knobs 12b and 12b 'are pressed and expanded in diameter, and is held by the ring 12a when the knobs 12b and 12b' are released from the press.

  The pliers 10 will be described based on the above hose clip 12. The pliers 10 have jaws 16 and 16 'on one end (tip) side and the other end as shown in FIG. 1 (a) or (b). A pair of arms 20, 20 ′ having handle portions 18, 18 ′ on the side are crossed by a connecting shaft (pivot, joint portion) 22.

  Since the pair of arms 20 and 20 ′ are rotatably supported via the connecting shaft 22, the jaws 16 and 16 ′ are opened and closed by opening and closing the handles 18 and 18 ′.

  A spring 24 is attached below the connecting shaft 22 (downward in the drawing, ie, in the direction of the handle portions 18, 18 ') and between one arm 20 and the other arm 20'. As shown in FIG. 1A, the spring 24 biases the handle 18 of one arm 20 and the handle 18 ′ of the other arm 10 ′ in the opening direction. Accordingly, the handle 18 and the handle 18 'are kept open as long as they are not gripped (closed) by the operator.

  3 is a partially enlarged front view of the jaw 16 (FIG. 3A), a partially enlarged side view of the jaw 16 (FIG. 3B), and an enlarged side view of the jaws 16 and 16 ′ (FIG. 3C). )), And an enlarged plan view of the jaws 16, 16 ′ (FIG. 3D). FIG. 4 is an explanatory view for explaining a recess of the notch groove, and FIG. 5 is a partially enlarged front view of the jaw portion 16 showing a modification of the jaw portion 16.

  The jaws 16 and 16 ′ are for holding the knobs 12 b and 12 b ′. As shown in FIG. 3A, the jaws 16 and 16 ′ have a substantially rectangular shape when viewed from the front and as shown in FIG. Further, it has a plate shape having a predetermined width (thickness) (only the jaw 16 is shown in FIGS. 3A and 3B).

  Further, as shown in FIGS. 3C and 3D, the jaw portion 16 and the jaw portion 16 'are arranged so as to be parallel to each other. Specifically, the jaw portion 16 and the jaw portion 16 ′ are arranged in parallel with each other with a slight separation in a direction orthogonal to the direction A in which the jaw portion 16 and the jaw portion 16 ′ open and close. Therefore, even if the jaw 16 and the jaw 16 ′ are closed, they do not come into contact with each other and rotate in parallel on different planes (B1 and B2 shown in FIG. 3D) (relative rotation). To do).

  Cutout grooves 16b and 16b 'are formed on the opposing surfaces of the jaw 16 and the jaw 16', that is, on the sides 16a and 16a 'where the jaw 16 and the jaw 16' face each other.

  As shown in FIG. 3 (a) (not shown in FIG. 3 (a), only the notch groove 16a is shown), the notch grooves 16b and 16b ′ are opposed surfaces 16a and 16a ′ of the jaw part 16 and the jaw part 16 ′. Is formed at the upper right corner of the face 16a, 16a 'facing the inner side (the direction in which the jaw 16 and jaw 16' close (connecting shaft 22 side)) from the side edge 16c by a predetermined width (depth) w. It is formed so as to exhibit a substantially rectangular parallelepiped groove having a predetermined length 1 downward from the upper edge 16f of 16a, 16a ′ and a predetermined depth d from the opposed surfaces 16a, 16a ′.

  Since the cutout grooves 16b and 16b ′ are formed in the side edges 16c and 16c ′ of the jaw portion 16 and the jaw portion 16 ′, respectively, the cutout groove 16b and the cutout groove 16b ′ are shown in FIG. As shown, they are arranged to face each other. For this reason, when the knobs 12b and 12b 'are sandwiched, the knob 12b is fitted into the notch groove 16b and the knob 12b' is fitted into the other groove 16b '. At this time, a part of the outer shape of the knob 12b comes into contact with the side wall 16d of the cutout groove 16b (the side wall located in the direction in which the jaw 16 and jaw 16 'open (outside in the drawing)), and the outer shape of the knob 12b'. Is partly in contact with the side wall 16d 'of the cutout groove 16b', so that when the jaw 16 and the jaw 16 'are further closed, the knobs 12b, 12b' are pressed from both sides by the side walls 16d, 16d '. The diameter of the ring 12a is increased.

  The cutout grooves 16b and 16b ′ are substantially rectangular parallelepiped grooves as described above, but the corners are processed into an R shape, and for example, the width w is 2.8 mm, the length l is 7 mm, and the depth d is 1 mm. It is formed with the dimensions.

  The above dimensions (width w, length l, depth d) of the cutout grooves 16b and 16b 'are determined as follows. That is, the width w is determined to be a dimension about the radius of a small circle constituting the knobs 12b and 12b ′ so that substantially half of the knobs 12b and 12b ′ can be accommodated, and the length l is at least the knobs 12b and 12b ′. The length is equal to or greater than the diameter of the small circle to be formed, and the predetermined depth d is approximately the diameter of the wire constituting the hose clip 12. Thus, by forming the notch grooves 16b and 16b ′ so as to match the dimensions of the knobs 12b and 12b ′, the knobs 12b and 12b ′ can be securely fitted into the notch grooves 16b and 16b ′. become able to.

  Curved recesses (recesses) 16e and 16e 'having a predetermined radius (for example, a radius of 2.5 mm) are further formed on the side walls 16d and 16d' of the cutout grooves 16b and 16b '(FIGS. 3A and 3B). Shows only the recess 16e).

  As shown in FIG. 4, the recesses 16e and 16e ′ are formed in order to more surely fit a part of the outer shape of the knobs 12b and 12b ′. One of the outer parts of the knobs 12b and 12b ′ is formed. Part, that is, it is formed to be curved in a concave shape so as to fit the small circle part constituting the knobs 12b and 12b ′. Accordingly, when the knobs 12b and 12b ′ are clamped, part of the outer shape of the knobs 12b and 12b ′ is fitted into the recesses 16e and 16e ′, so that the knobs 12b and 12b ′ can be clamped more reliably. It becomes like this.

  The recesses 16e and 16e ′ are positions that are lowered from the upper edge 16f of the notch grooves 16b and 16b ′ by a predetermined distance 12 (for example, 3 mm) downward in the drawing, that is, in the direction of the connecting shaft 22 and the handle portions 18 and 18 ′. (See FIG. 3 (a)). This position is determined so that one end (lower end side) of the ring 12a is positioned in the vicinity of the upper edge 16f of the notch grooves 16b and 16b 'when the knobs 12b and 12b' are sandwiched between the recesses 16e and 16e '. That is, for example, if the recesses 16e and 16e ′ are below this position, one end of the ring 12a gets caught in the notch grooves 16b and 16b ′, and the recesses 16e and 16e ′ are above this position. If it exists, the position of the knob | pick parts 12b and 12b 'fitted to recessed part 16e, 16e' will be too upper, and it will become difficult to pinch the knob | pick parts 12b and 12b 'reliably.

  By the way, as shown in FIG. 5, curved portions 16g and 16g ′ (16g ′ not shown) are formed on the upper edges 16f and 16f ′ of the jaws 16 and 16 ′ so as to bend the upper edges 16f and 16f ′. ) May be provided. This is because when the hose clip 12 is attached to or detached from the hose 14, it is difficult to keep the pliers 10 perpendicular to the longitudinal direction (axial direction) of the hose 14, so that the hose 14 and the upper edges 16f and 16f ′ are in contact with each other during the operation. However, the upper edges 16f and 16f ′ are provided with curved portions 16g and 16g ′ formed with a slight radius so as to follow the outer shape of the hose 14, so that the hose 14 has the upper edges 16f and 16f. It is intended to prevent contact with '. Further, by providing the curved portions 16g and 16g ', the hose 14 does not come into contact with the upper edges 16f and 16f', so that workability is improved.

  Next, the operation of the pliers 10 according to the present embodiment will be described.

  FIG. 6 is a partially enlarged front view for explaining the state in which the pliers 10 are holding the hose clip 12 (the knob portion 12b). FIG. 6 (a) is a diagram in which the jaw portions 16 and 16 ′ are still completely closed. FIG. 6 (b) shows a state in which the jaws 16, 16 ′ are completely closed.

  From the state where the jaws 16 and 16 ′ are completely open (see FIG. 1A), the knobs 12b and 12b ′ are formed in the notches 16b and 16b ′ and the recesses 16e and 16e ′ of the jaws 16 and 16 ′. As shown in FIG. 6 (a), the knobs 12b and 12b 'are formed in the recesses 16e and 16b' in the notches 16b and 16b '. The ring 12a is gradually expanded in diameter by being pressed from both sides by 16e '.

  When the jaws 16 and 16 'are completely closed, as shown in FIG. 6 (b), the ring 12a is in the most expanded state. Accordingly, the hose 14 can be inserted into the ring 12a in this state, and when the hose 14 is inserted, the gripping force is loosened and the force applied from both sides of the knobs 12b and 12b ′ is released. The hose 14 is tightened to return to the original state.

  As described above, in the embodiment of the present invention, the pair of arms 20 and 20 ′ having the jaws 16 and 16 ′ at the tips are crossed, and the operator is provided with the pair of arms 20 and 20 ′. (More specifically, the pliers 10 that grip the handle portions 18 and 18 ′ and sandwich the objects (the knob portions of the hose clip 12) 12 b and 12 b ′ between the jaw portions 16 and 16 ′). When the pair of arms 20 and 20 ′ are gripped, the jaws 16 and 16 ′ of the pair of arms 20 and 20 ′ are parallel to each other, and the jaws 16 of the pair of arms 20 and 20 ′ are parallel to each other. , 16 ′ are formed such that notched grooves 16b, 16b ′ are formed on the facing sides 16a, 16a ′.

  Thus, even if the object to be clamped is a hose clip 12 made of a wire-like circular ring that is elastically deformable, the facing sides 16a, 16a ′ of the jaws 16, 16 ′ of the pair of arms 20, 20 ′. The hose clip 12 can be securely fixed or sandwiched by the notched grooves 16b and 16b 'formed in the above, and the diameter can be increased.

  Further, the notch grooves 16b and 16b ′ are formed so as to be opposed to the jaw portions 16 and 16 of the pair of arms 20 and 20 ′, so that the object to be sandwiched can be elastically deformed. Even the hose clip 12 formed of the circular ring 12a can be more securely fixed or sandwiched and expanded in diameter.

  Further, since the recesses 16e and 16e ′ are formed in the notch grooves 16b and 16b ′, even if the object to be sandwiched is a hose clip 12 made of a wire-like circular ring 12a that can be elastically deformed, It can be fixed or clamped more reliably and the diameter can be expanded.

  Further, the spring 24 is configured to be attached between the pair of arms 20 and 20 ′. More specifically, the handle 18 of one arm 20 and the handle 18 ′ of the other arm 10 ′ are opened. Since the spring 24 is attached so as to be biased, the operability by the operator can be improved.

  Moreover, since the said object (hose clip) 12 was comprised so that it might consist of an elastically deformable clip, the hose clip 12 can be fixed or pinched still more reliably and diameter-expanded.

  Although the shape of the cutout groove 16b has been described as a rectangular parallelepiped shape (substantially rectangular shape in front view) having a predetermined width w, a predetermined length l, and a predetermined depth d, the shape is not necessarily limited to this shape. Any other shape (triangular shape, curved shape, etc.) may be used as long as the target object can be securely held.

  In addition, although the concave portions 16e and 16e ′ are curved depressions, the concave portions 16e and 16e ′ are not limited to this shape, and other shapes (triangles) can be used as long as the object to be clamped can be securely clamped. Shape, curved shape, etc.).

  In addition, the width w, the length l, the depth d, the position of the cutout grooves 16b and 16b ′, the position l2, the radius R and the like of the recesses 16e and 16e ′ are specifically shown. It is merely an example and is not limited.

  10 pliers, 12 hose clips, 16, 16 ′ jaws, 16a, 16a ′ opposing surfaces (opposite sides) of the jaws, 16b, 16b ′ notch grooves, 16e, 16e ′ recesses, 20, 20 ′ arms, 24 Spring

Claims (5)

  A pair of pliers, each having a pair of arms each having a jaw at the tip, and having an operator grasp the pair of arms to sandwich an object between the jaws, The pliers are configured such that when gripped, the jaw portions of the pair of arms are parallel to each other, and a notch groove is formed on the facing side of the jaw portions of the pair of arms.   The pliers according to claim 1, wherein the notch grooves are formed so as to face jaws of the pair of arms.   The pliers according to claim 1 or 2, wherein a recess is formed in the notch groove.   The pliers according to any one of claims 1 to 3, wherein a spring is attached between the pair of arms.   The pliers according to any one of claims 1 to 4, wherein the object comprises an elastically deformable clip.

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