JP3001847U - scissors - Google Patents

Abstract

(57) [Summary] [Purpose] To provide scissors capable of exchanging a pair of blades without releasing the pivotal support state of the pair of blades. [Structure] A pair of blades 5, and grips 15, 2 on the rear of the blades 5.
In the scissors in which 5 is detachably provided, the rear parts of the pair of blades 5 are overlapped with each other, and the rear parts thereof are rotatably supported by a pivot support tool. This is because the joint portion with the corresponding handle is fixed with the mounting screw 35.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to scissors having a pair of blades that are separable from a handle.

[0002]

[Prior art]

 Conventional scissors of this type include those shown in FIGS. 6 and 7. In this scissors, a pin insertion hole 54 is formed in the rear portion of one blade 51, and a fitting recess portion 53 is formed in a portion where the rear portion extends to the rear portion. Further, the grip handle 65 is formed with a pin insertion hole 54 at the tip thereof which overlaps the pin insertion hole 54 formed in the blade body 51, and is fitted into the fitting recessed portion 53 at the intermediate portion of the grip handle 65. The fitting protrusion 55 is formed.

In the conventional scissors described above, when the blade body 51 is attached, the fitting recess 53 of one blade body 51 is fitted into the fitting protrusion 55 of the handle 65, and the other blade body 51 is fitted. The fitting recess 53 is fitted into the fitting protrusion 55 of the handle 65. Next, the pivot pin 80 is inserted into the one pin insertion hole 54 and the other pin insertion hole 54, and the blade 51 and the grip handle 65 are attached.

Further, when removing the blade body 51, the blade body 51 is separated by a process reverse to the above process. The pivot pin 80 is pulled out from the pin insertion hole 54 to release the pivot state of the blade body 51. By releasing this pivotally supported state, the fitting state between the fitting recessed portion 53 and the fitting protruding portion 55 is released, and the blade 51 and the handle 65 are separated.

[0005]

[Problems to be solved by the device]

 In the conventional scissors described above, the blade body cannot be replaced unless the pivotal support state of the blade body is released. Therefore, the rubbing state (hereinafter referred to as “contact pressure state”) is already adjusted. Even with the existing blade, there was a problem that the contact pressure between the blade and blade had to be readjusted after the replacement. Moreover, adjustment of the contact pressure state is highly skilled, and if an unskilled person adjusts the contact pressure state, it takes a very long time, and it is not always possible to adjust to a good state. It was

The present invention has been made in view of the above drawbacks, and when a pair of blade bodies whose contact pressure is already adjusted is attached to the handle, it is necessary to adjust the contact pressure again. Not intended to get scissors.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, in the scissors in which the handle is attached to the rear part of the pair of blades, the blades are overlapped with each other, and the rear part of the pair of blades is relatively supported by the pivot support. The handle is pivotally supported and the grips corresponding to the blades are joined together, and the joints are fixed with fasteners.

Further, an insertion hole for inserting a male screw is formed in the rear part of the blade body, and in a state where the insertion holes are aligned with each other, one end of the male screw inserted in the insertion hole is fixed with a nut so that the male screw is fixed. It has a structure in which a brace is formed.

Further, the pivotal support is formed of a nut and a screw, and an insertion hole for inserting the screw is formed in the rear portion of the blade body. With the insertion hole aligned with each other, the screw inserted into the insertion hole One end of the handle that is fixed to the back of the blade body at one end and has a fitting part that fits with the nut is formed at one end of the handle that contacts the back face of the blade, and the other end that contacts the back face of the other handle. In this configuration, a loose fitting hole that loosely fits the head of the screw is formed, and the head of the screw is loosely fitted in the loose fitting hole, and a nut is fitted in the fitting portion.

Next, the fastener is configured to include a fixing screw and a positioning pin.

[0011]

[Action]

 Since the pivot support for pivotally supporting the pair of blades and the stopper for attaching each blade and handle are separately configured, for example, when the blades are damaged, another blade can be attached. When it is necessary to replace the blade, the blade and the handle can be separated by releasing the stopper, and another blade can be attached to the handle via the fastener. As a result, the blade body can be replaced without releasing the pivotally supported state of the pivotal support.

When the pivotal support state is such that one end of the screw inserted into the insertion hole formed in the rear portion of the pair of blades is fixed with a nut so as not to come off, the tightened state of the nut should be changed. Thereby, the contact pressure state can be adjusted to obtain a desired sharpness.

Further, a pivot support tool for pivotally supporting the pair of blade bodies is formed by a combination of a screw and a nut, and when this nut is fitted to a rotation stopper fitting portion provided on one grip handle. At the same time, the head of the screw is loosely fitted in the loose fitting hole formed in the other handle. In this case, for example, if a driver is inserted into the head of the screw through the loose fitting hole and turned, the contact pressure state can be adjusted without releasing the joint state by the fastener.

Next, when the stopper for joining the joining portion of the blade and the handle is configured to include a positioning pin, the blade and the handle can be easily placed at accurate positions. Can be attached.

[0015]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 is a perspective view showing scissors, FIG. 2 is an assembled perspective view showing an assembly of scissors, FIG. 3 is an assembled perspective view of a pair of blades, and FIG. 4 is a schematic sectional view taken along the line AA of FIG.

As shown in FIGS. 1 to 4, the scissors according to the present embodiment are pivotally rotatably supported by a pivotal support member 30 in a state where the rear portions of the blade bodies 10 and 20 are overlapped with each other. At the same time, the grips 15 and 25 are fixed to the rear parts of the blades 10 and 20 with fasteners.

The blade bodies 10 and 20 are members that form a pair of blade bodies 5, and joint portions 11 and 21 are formed at the rear portions thereof.

The joint portions 11 and 21 are formed at the rear portions of the pair of blade bodies 5, and the back surfaces thereof are formed to be substantially flat. Then, screw insertion holes 13 and 23 are formed in an intermediate portion of the plane, and screw holes 12a, 12b, 22a and 22b are formed in front and back so as to sandwich the screw insertion holes 13 and 23. There is.

Further, the joined portions 16 and 26 are formed at one end of the grips 15 and 25, and the inner surface thereof is formed into a substantially flat shape, and the through holes 16a, 16b, 26a and 26b are formed. Has been done. In addition, the one to-be-joined portion 26 is formed with a loose fitting hole 26c for loosely fitting the head of the screw 31 protruding to the joining portion 21, and the other to-be-joined portion 16 is projected to the joining portion 11. A fitting hole 16c (an example of a fitting portion) that fits with the nut 32 is formed.

Further, the fastener is composed of four mounting screws 35, and this mounting screw 35 has a thickness obtained by adding the thicknesses of the joint portions 11 and 21 to the thickness of the joint portions 16 and 26. It is smaller than that and larger than the thickness of the joined portions 16 and 26.

Next, the pivot support 30 is composed of a screw 31 and a nut 32. The screw 31 is inserted into the screw insertion holes 13 and 23, and the nut 32 is screwed to the tip end portion thereof. There is. It is preferable to use the nut 32 having a detent function.

Removal of the pair of blades 5 is performed as follows. First, loosen the four mounting screws 35 that attach the jointed portions 16 and 26 and the jointed portions 11 and 21, and remove the jointed portions 11 and 21 of the blades 10 and 20 and the grips 15 and 25. The attachment state with the joined portions 16 and 26 is released. As a result, the pair of blades 5 and the grips 15, 25 are separated from each other.

Further, the mounting is the reverse of the above-described removal. The joined portion 16 of the handle 15 is brought into close contact with the joint portion 11 of the one blade 10, and the mounting screw 35 is inserted into the through holes 16a and 16b, and the screw hole 12a formed in the joint portion 11 is Screw on 12b.

The screw 21 formed on the joint 21 by inserting the mounting screw 35 into the through holes 26 a and 26 b by closely adhering the joined portion 26 of the handle 25 to the joint 21 of the other blade 20. The holes 22a and 22b are screwed. This completes the attachment of the pair of blades 5 and the grips 15, 25.

The scissors according to the present embodiment includes a pivot support tool 30 including a screw 31 and a nut 32 that pivotally support the blade bodies 10 and 20 in an openable and closable manner, joints 11 and 12, and jointed portions 16 and 26. Since the fastener consisting of the mounting screw 35 that attaches the screw is separately configured, the mounting screw 35 can be tightened or loosened without releasing the pivotal support state of the screw 31 and the nut 32. By doing so, the pair of blade bodies 5 can be attached or detached from the grips 15, 25.

A fitting hole 16c for fitting the nut 32 is formed in the joined portion 16, and a loose fitting hole 26c for loosely fitting the head of the screw 31 is formed in the joined portion 26. ing. As a result, with the grips 15 and 25 attached to the pair of blades 5, the tip of the try bar is made to face the loose fitting hole 26c, and the screw 31 is turned by a screwdriver so that the nut 32 and the screw 31 are screwed together. You can change the state. In addition, since the fitting hole 16c fits the nut 32, the nut 32 does not loosen during use, and an appropriate contact pressure state can be maintained for a long time.

That is, when the pair of blades 5 is replaced, it is not necessary to release the pivotally supported state of the pivot support 30. Therefore, when the pair of blades 5 whose contact pressure is adjusted in advance is replaced, After the replacement, it is not necessary to adjust the contact pressure state of the pair of blade bodies 5 again, and the replacement can be easily performed. In addition to this, since the head of the screw 31 can be exposed to the loose fitting hole, the desired contact pressure can be achieved without releasing the attachment state of the joints 11 and 21 and the jointed portions 16 and 26. Can be adjusted to the state.

FIG. 5 is an enlarged perspective view of an essential part showing another embodiment different from the above embodiment of the present invention. Positioning pins 14 and 24 are protruded from joint portions 11 and 21 formed on the rear portions of the pair of blade bodies 5. The positioning pins 14 and 24 are inserted into the through holes 16a and 26b. Other than that, the configuration is the same as that of the above embodiment.

The positioning pins 14 and 24 are inserted into the through holes 16a and 26a, so that the pair of blades 5 can be attached to the grips 15 and 25 at accurate positions. Moreover, the number of mounting screws used can also be reduced. For example, although the above-mentioned embodiment uses four mounting screws 35, in the embodiment described here, two mounting screws 35 are used. Tightened only with screws 35.

[0030]

[Effect of device]

 In the scissors configured as described above, a pivot support tool that pivotally supports the pair of blade bodies and a stopper that attaches the pair of blade bodies and the handle are separately configured. This allows the pair of blades to be attached to the handle without releasing the pivotal state of the pivot support.For example, the pair of blades whose contact pressure has been adjusted in advance can be attached to the handle. In that case, it is possible to obtain scissors again without having to adjust the contact pressure state.

Further, when the pivot support tool for pivotally supporting the pair of blades is formed by a screw inserted into the screw insertion hole and a nut fixing one end of this screw, the tightened state of the nut is changed. By adjusting the pressure, it is possible to adjust to a desired contact pressure state.

Further, the pivotal support is formed by a combination of a screw and a nut, and this nut is fitted into a detent fitting portion provided on one grip, and the head of the screw is installed on the other grip. When it is configured to be loosely fitted in the loose fitting hole, for example, when adjustment of the contact pressure state is not desired, adjust the nut tightening condition by making the tip of the driver face the loose fitting hole. For example, the contact pressure can be adjusted without removing the joint.

Next, in the case where the fastener includes the positioning pin, the blade body and the handle can be attached to each other in accurate positions.

[Brief description of drawings]

FIG. 1 is a perspective view showing scissors according to an embodiment of the present invention.

FIG. 2 is an assembled perspective view of scissors according to an embodiment of the present invention.

FIG. 3 is an assembled perspective view of a pivot support of scissors according to an embodiment of the present invention.

FIG. 4 is a schematic cross-sectional view taken along the line AA of FIG.

FIG. 5 is a perspective view of a main part assembly showing an embodiment different from this embodiment.

FIG. 6 is a perspective view showing a conventional scissor attachment structure.

FIG. 7 is a perspective view showing conventional scissors.

[Explanation of symbols]

 5 Pairs of blades 10 Blades 11 Joints 12a, 12b Screw holes 13 Screw insertion holes 14 Positioning pins 15 Grip handle 16 Joined parts 16a, 16b Through holes 16c Fitting holes 20 Blades 21 Joints 22a, 22b Screw holes 23 screw insertion hole 24 positioning pin 25 grip handle 26 joined parts 26a, 26b through hole 26c loose fitting hole 30 pivot support 31 screw 32 nut

Claims (4)

[Scope of utility model registration request] 1. A pair of scissors in which a handle is attached to the rear part of a pair of blades, wherein the blades are superposed on each other, and the pair of blades are relatively pivotally supported by a pivotal support at the rear part. Scissors characterized in that a handle corresponding to each blade is joined and the joined portion is fixed by a fastener. 2. An insertion hole for inserting a male screw is formed in a rear portion of the blade body, and in a state where the through holes are aligned with each other, one end of the male screw inserted in the insertion hole is fixed by a nut so as to be fixed. The scissors according to claim 1, wherein the scissors are formed. 3. The pivot support is formed of a nut and a screw, and an insertion hole for inserting the screw is formed in the rear portion of the blade body, and the screw inserted through the insertion hole is aligned with the insertion hole. One end of the handle that is fixed to the back of the blade at one end and has a fitting portion that fits with the nut is formed at one end of the handle that contacts the back of the blade, and the other end that contacts the back of the other handle. The scissors according to claim 1, wherein a loose fitting hole for loosely fitting the head of the screw is formed in the head, the head of the screw is loosely fitted in the loose fitting hole, and a nut is fitted in the fitting portion. 4. The scissors according to claim 1, wherein the fastener comprises a fixing screw and a positioning pin.