JP2011062275A - Bumper member fixing structure of scissors - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bumper member fixing structure wherein a mounted bumper member does not fall off in scissors for gardening or the like. <P>SOLUTION: On blade bodies 1 and 2, a notched portion 6 in the shape of being opened to a side edge is formed at the opposing side edge part more on the base side relative to a pivot position. To the notched portion 6, a fitting portion of the bumper member 7 including the fitting portion 7a having the same planar shape as the notched portion 6 and the same thickness as the blade bodies 1 and 2 and an abutting portion 7b from the fitting portion 7a and projecting toward the side edge is fitted. While fitting the fitting portion 7a of the bumper member 7 to the notched portion 6 of the blade bodies 1 and 2, a holding handle 4 formed into a roughly U shape on the cross-section is inserted from the outer side part, and while clamping both front and back surfaces of the fitting portion 7a of the bumper member 7 by the holding handle, the holding handles 4 and 5 are fixed to the blade bodies 1 and 2. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  This invention cuts an object to be cut by opening and closing a handle in which a pair of blades are pivotally supported and attached to the base of the blade body, like a pruning shear for gardening, and is based on the pivotal support position of the blade body. On the other hand, the present invention relates to a hook that causes a buffer member that abuts when the blade body is closed to protrude to the opposite edge of the blade body.

A cushioning member that contacts a pair of blades when they are closed to a predetermined position and prevents them from closing when the blades are closed further in order to prevent finger jamming and reduce the shock when opening and closing the blades. It is widely provided.
The scissors described in Patent Document 1 are those in which a handle is attached to the base of a pair of blade bodies, but an invention in which a contact portion is formed on the blade body itself is described. Patent Document 2 discloses an invention in which a notch is formed in a blade body and an opening for receiving a buffer stopper is formed in a notch portion of the blade body when a handle is molded.
Patent Document 3 discloses a structure in which a metal contact is screwed to a handle formed of a soft plastic or rubber material.

JP 2001-104665 A JP-A-60-236680 Japanese Utility Model Publication No. 06-61035

  As disclosed in Patent Document 1, the one that forms a hit on the blade itself cannot be expected to have a buffering effect on the opening / closing operation of the blade. In addition, as disclosed in Patent Document 2, in the case where the storage portion of the stopper is formed in a part of the handle, it is necessary to form the storage portion one by one, and the stopper stored in the storage portion may fall off. .

  In view of the above-described drawbacks of the prior art, the present invention can easily mount a buffer member having a moderate buffering effect, and the mounted buffer member does not fall off and reliably maintains the mounted state. An object of the present invention is to realize a cushioning member fixing structure for a bag.

  In order to achieve the above object, the invention according to claim 1 is characterized in that the object to be cut is formed by opening and closing the gripping handles 4 and 5 that pivotally support the pair of blades 1 and 2 and are attached to the bases of the blades 1 and 2. The scissors for cutting and projecting the buffer members 7 and 7 that come into contact with the blades 1 and 2 when the blades 1 and 2 are closed at the base rather than the axial support positions of the blades 1 and 2 to the opposite side edges of the blades 1 and 2. Is.

  The blade bodies 1 and 2 are provided with a notch 6 having a shape opened to the side edge at the opposite side edge portion at the base from the axial support position. Then, a cushioning member 7 constituted by a fitting portion 7a having the same planar shape as the cutout portion 6 and having the same thickness as the blade bodies 1 and 2 and a contact portion 7b protruding from the fitting portion 7a is mounted. With the fitting part 7a of the buffer member 7 fitted in the notch part 6 of the blade bodies 1 and 2, the grip handle 4 formed in a substantially U-shaped cross section is inserted from the outside, and the buffer member 7 is fitted. The gripping handles 4 and 5 are fixed to the blade bodies 1 and 2 in a state where both front and back surfaces of the portion 7a are sandwiched between the gripping handles. Thereby, the buffer members 7 and 7 are fixed to the blade bodies 1 and 2, respectively.

  The invention according to claim 2 relates to the planar shape of the notch portion 6 formed in the blade bodies 1 and 2 and the fitting portion 7a of the buffer member 7, and the fitting portion 7a of the buffer member 7 is arranged in a direction intersecting the blade body surface. It is made into the shape which can be made to fit in the notch part 6 by a movement, and does not move in the direction parallel to a blade body surface.

  The invention according to claim 3 relates to the shape of the contact portion 7b protruding in the side edge direction from the fitting portion 7a of the buffer member 7, and the thickness of the contact portion 7b is set to be the thickness protruding from both the front and back surfaces of the fitting portion 7a. A step portion 7c is formed between the joint portion 7a. Then, the inner edges of the grips 4 and 5 are brought into contact with the stepped portion 7c, and the inner surfaces facing each other of the contact portions 7b and 7b of the buffer members 7 and 7 mounted on the pair of blade bodies 1 and 2 are buffered. It is made to contact | abut as a surface.

  According to the invention of claim 1, the gripping handles 4, 5 formed in a substantially U-shaped cross section in a state in which the fitting portion 7 a of the buffer member 7 is fitted in the cutout portion 6 of the blade bodies 1, 2. The buffer member is also fixed by inserting it from the outside and fixing the gripping handles 4 and 5 to the blade bodies 1 and 2 while covering the fitting portion 7a of the buffer member 7. Since the shock-absorbing member 7 is in a state where both the front and back surfaces are covered with the gripping handles 4 and 5, it does not come out in the direction intersecting the surface of the blade body. Then, the buffer members 7 and 7 act so as to be pushed into the notches 6 and 6 by contact with the opening and closing operations of the pair of blade bodies 1 and 2. Therefore, there is no possibility that the buffer member 7 once mounted will drop off.

  According to invention of Claim 2, the fitting part 7a of the buffer member 7 can be fitted to the notch parts 6 and 6 by the movement of the direction which cross | intersects the surface of the blades 1 and 2, and the blade 1 The shape does not move in the direction parallel to the second surface. And the grip handle 4 which formed the front and back both surfaces of the fitting part 7a in the substantially U-shaped cross section in the state which the fitting part 7a of the buffer member 7 fitted in the notch parts 6 and 6 formed in the blade bodies 1 and 2. Therefore, the buffer member 7 has no possibility of reluctance at all, and the buffer member 7 can be reliably fixed at a predetermined position of the blade bodies 1 and 2.

  According to the third aspect of the present invention, since the buffer members 7 and 7 attached to the opposed positions of the blade bodies 1 and 2 can be brought into contact with each other with the wide contact portion 7b, a stable contact state is realized. In addition, a part of the contact force is brought into contact with the inner edge of the grip handle 4 formed in a substantially U-shaped cross section at the step portion 7c of the buffer member 7. The contact force is supported over a wide range of the entire length. Therefore, there is a sense of stability at the time of the opening and closing operation, and the force acting on the buffer member 7 is dispersed, so that there is an effect that the buffer member 7 is less worn and damaged and is durable.

FIG. 1 is a front view of the entire scissors in a state where a blade body shown with a part cut away is opened, FIG. 2 is a front view of the entire rod with the blade body closed, 3 is a cross-sectional view taken along line III-III in FIG. FIG. 4 is an exploded perspective view showing the blade body, the buffer member, and a part of the grip handle separately. FIG. 5 is a front view of the base of the blade body and the buffer body.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a bag cushioning member fixing structure according to the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a front view of the entire scissors with the blade body open, and FIG. 2 is a front view of the scissors with the blade body closed.
The scissors shown in FIGS. 1 and 2 are mainly gardening scissors, and a pair of blade bodies 1 and 2 are pivotally supported by a shaft 3 to form sharp cutting blades 1a and 2a ahead of the shaft support position. The object to be cut is cut by opening and closing the grips 4 and 5 attached to the base rather than the shaft support position. When the blade bodies 1 and 2 are pivotally supported by the shaft 3, the blade bodies 1 and 2 are provided with attachment holes 15, respectively. The blade bodies 1 and 2 are always urged in the direction of opening the blade body by springs 8 supported at both ends on the upper portions of the grip handles 4 and 5 so that the cutting operation is smoothly performed by the grip handle gripping operation. . Both ends of the spring 8 are locked to locking portions 9 and 9 formed on the grip handle.

  The buffer members 7 and 7 that contact when the blades 1 and 2 are closed are protruded toward the opposite side edge of the blades 1 and 2 at the base rather than the shaft support position of the blades 1 and 2. . Therefore, even if the grips 4 and 5 are gripped strongly, the shock-absorbing members 7 come into contact with each other, the blades 1 and 2 are not closed too much and the fingers are not stuffed, and the shock is absorbed in peace. Can be used.

The mounting structure of the shock-absorbing member 7 according to the present invention is such that the notch portion 6 having a shape opened to the side edge is formed on the opposite side edge portion of the base with respect to the axial support position of the blade bodies 1 and 2, 6 is mounted with a cushioning member 7 composed of a fitting portion 7a having the same planar shape as the blades 1 and 2 and having the same thickness as the blade bodies 1 and 2, and a contact portion 7b protruding from the fitting portion 7a.
Further, in a state where the fitting portion 7a of the buffer member 7 is fitted to the cutout portion 6 of the blade bodies 1 and 2, the grip handle 4 formed by bending the steel plate into a substantially U-shaped cross section as shown in FIG. Inserted from the outside and covered the fitting part 7a of the buffer member 7, in other words, the gripping handle 4, 5 with the gripping handle sandwiched between the front and back surfaces, with the crimping pins 10, 11 It is fixed. The grips 4 and 5 are provided with mounting holes 16 and 17 for allowing the caulking pins to pass therethrough.

The shape of the notch 6 in the illustrated embodiment is a semicircular arc as shown in FIG. 5, and bulges 6a and 6a, specifically small circular portions, are formed at both end portions of the semicircular arc. The blade bodies 1 and 2 are provided with mounting holes 12 and 13 for the caulking pins 10 and 11 separately from the notch 6.
The fitting part 7a of the buffer body 7 fitted to the notch part 6 has a semicircular arc shape having the same shape as the notch part 6 of the blade bodies 1 and 2, and a small circular bulge part 7d at both end parts of the semicircular arc shape. , 7d is formed. A contact portion 7b is integrally formed on the inner side of the fitting portion.

  By forming the cutout portion 6 and the fitting portion 7a of the buffer member 7 that fits into the cutout portion 6 into the above shape, the buffer member 7 intersects the surfaces of the blade bodies 1 and 2, more specifically, orthogonally. It can be fitted into the notch 6 by moving in the direction. The buffer member 7 cannot be moved in a direction parallel to the surfaces of the blade bodies 1 and 2. In this state, as shown in FIG. 3, gripping handles 4, 5 having a substantially U-shaped cross section are inserted from the outside, and the gripping handles 4, 5 are covered with the fitting portion 7 a of the buffer member 7 covered. Are fixed to the blade bodies 1 and 2 with caulking pins 10. Thereby, the buffer member 7 is fixed reliably.

  The fitting part shape of the notch part 6 and the buffer member 7 is not necessarily limited to the said shape. Although it is desirable that the buffer member 7 has a shape that does not move in a direction parallel to the surface of the blade body, the buffer member 7 is formed to have a substantially U-shaped cross section even if it has a shape that can move in a direction parallel to the surface of the blade body. Since the grips 4 and 5 are inserted from the outside and fixed in a state of covering the fitting portion 7a of the buffer member 7, the buffer member 7 does not come out, and the pair of blade bodies 1 and 2 The buffer members 7 and 7 act so as to be pushed into the notches 6 and 6 by the abutment accompanying the opening and closing operation. In order to make the notch portion 6 and the fitting portion 7a of the buffer member 7 so as not to move in a direction parallel to the surface of the blade body, at least a portion wider than the open side is formed, or from the open end Also, it can have an arbitrary shape such that a bulge is formed in the back.

  The thickness of the contact portion 7b protruding from the fitting portion 7a of the buffer member 7 is the thickness of the member constituting the grip handle on the front and back surfaces of the fitting portion 7a, in other words, the thickness of the steel plate protruding. A step portion 7c is formed between 7a and the contact portion 7b. In other words, as shown in FIG. 3, the contact portion 7 b of the buffer member 7 has a thickness that matches the thickness of the grip handle that is bent in a U-shape with the fitting portion 7 a interposed therebetween and fixed with a caulking pin. The inner edges of the grips 4 and 5 are brought into contact with the stepped portion 7c between the fitting portion 7a and the contact portion 7b.

  By adopting the above configuration, the abutting force is supported by the gripping handle that abuts at the contact portion 7b having a relatively large thickness, which is the same as the inner edge portion of the gripping handle, and the front and back end portions of the thickness are in contact with the stepped portion. Therefore, a stable contact state can be realized. That is, the force acting on the buffer member is stably supported by the relatively wide range of the inner edge of the grip handle.

The shock-absorbing member 7 has a certain degree of flexibility, and if a synthetic resin material such as engineering plastic with excellent strength is used, it can absorb the impact associated with the opening and closing of the blade body and realize a bag with a shock-absorbing member that does not get tired. Can do.
The gripping handles 4 and 5 obtained by bending the steel plate into a substantially U-shaped cross section are covered with a soft synthetic resin material 14 over the entire portion gripped by the hand, so that they can be used by soft touch.

DESCRIPTION OF SYMBOLS 1, 2 ... Blade body, 3 ... Shaft, 4, 5 ... Grip handle, 6 ... Notch part, 6a ... Swelling part, 7 ... Buffer member, 7a ... Fitting part, 7b ... , 7c: Stepped part, 7d: Swelling part, 8 ... Spring, 9 ... Locking part, 10, 11 ... Caulking pin, 12, 13 ... Mounting hole, 14 ... Synthetic resin material, 15, 16, 17 ... Mounting hole .

Claims (3)

A buffer that abuts when the blade is closed at the base rather than the pivotal support position of the blade by cutting and opening the handle by opening and closing the handle that is pivotally supported by the pair of blades and attached to the base of the blade In the ridge that projects the member to the opposite side edge of the blade body,
The blade body is formed with a notch portion having a shape opened to the side edge at the opposite side edge portion of the base from the shaft support position, and the cutout portion has the same plane shape as the notch portion and the same as the blade body Formed in a substantially U-shaped cross-section in a state where the fitting portion of the cushioning member constituted by the fitting portion having a thickness and the contact portion protruding from the fitting portion is fitted to the notch portion of the blade body The cushioning member is fixed to the blade body by inserting the gripping handle from the outside and fixing the gripping handle to the blade body with both the front and back surfaces of the fitting portion of the buffer member sandwiched between the gripping handles. The cushioning member fixing structure of the bag   The planar shape of the notch portion and the fitting portion of the buffer member formed in the blade body allows the fitting portion of the buffer member to be fitted to the notch portion by movement in a direction intersecting the blade body surface, and is parallel to the blade body surface. 2. The bag cushioning member fixing structure according to claim 1, wherein the cushioning member fixing structure has a shape that does not move in the direction in which it moves.   The contact portion protruding from the fitting portion of the buffer member forms a step portion with the fitting portion as a thickness protruding from both the front and back surfaces of the fitting portion, and the inner edge of the gripping handle is brought into contact with the step portion. 3. The cushioning member fixing structure for scissors according to claim 1 or 2, wherein the opposing inner side surfaces of the contact portions of the cushioning members respectively mounted on the pair of blade bodies are brought into contact with each other as a cushioning surface.

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