JP5671173B1 - Pinch tool - Google Patents

Abstract

The present invention aims to provide a pinch tool that simplifies manual operations and reduces costs in an assembly process and enables mass production in automation. A pair of synthetic resin sandwiching pieces 20 that are integrally molded with the same shape, and a metal spring body 33 that pushes and holds the pair of sandwiching pieces together from the outside. In the pinch tool 10 configured, in a state where the sandwiching pieces are connected to each other by the connecting portion 24, the spring body from the inner side of the gripping portion 21 to the slit groove 31 of the sandwiching piece starting from the opening 34 of the spring body , The tip of the spring body is pushed in along the slope portion 28 of the guide sliding portion 27 that swells and inclines into the mountain shape of the jaw portion 25, and finally the innermost portion of the slope portion. The tip of the spring body is dropped into the drop hole 29 and is combined. [Selection] Figure 1

Description

The present invention is composed of two parts: a pair of synthetic resin sandwich pieces integrally formed with the same shape, and a metal spring body that presses and sandwiches the pair of sandwich pieces from the outside. The present invention relates to a pinch tool that prevents metal anergy and rust stains from adhering to the laundry, simplifies manual work in the assembly process, reduces costs, and enables mass production in automation.

  Many conventional pinch tools for washing use have a spring body that protrudes from the outline of the pinch device, so that if used continuously for many years, it will become a rust-stained laundry due to surface corrosion of metal springs. As shown in FIG. 2 of Utility Model Registration No. 3069716 (Patent Document 2), there is a risk of developing anergy symptoms such as metal anergy by direct contact with the user's skin or the user's skin. Since the manual assembly work is extremely complicated, it has been impossible to simplify the manual work in the assembly process and reduce the cost, and to enable mass production by automation.

  The production system for pinch devices manufactured under such circumstances is a low-priced product, so it can be used in a special environment such as prison work in a prison or labor work in a facility for the physically challenged. The actual situation is that wages are produced in developing countries, etc., and the structure in which the spring body does not protrude from the outer contour of the pinch tool, simplification of assembly work, and mass production by automation will continue to be required. However, due to the complexity of the structure of the conventional pinch device, these requirements have not been achieved yet.

  Many proposals have been made for washing pinches having the above-mentioned problems. For example, a “laundry pinch” (see Patent Document 1) having a shape that is currently in widespread use has been proposed and has become a publicly known technique.

  The proposal of the “washing pinch” described above requires a special tool in the assembling method shown in “Plastic or metal clip having a spring and a body that is easy to assemble and difficult to detach” (see Patent Document 2). In addition, since the assembly means is extremely complicated and the spring body is incorporated in a state protruding from the outer contour of the pinch tool, adhesion of rust stains to the laundry due to surface corrosion of the metal spring, There is a risk of developing anergic symptoms such as metal anergy by directly touching the user's skin, and since the structure that can fit the spring body from behind the clamping piece is not adopted, automation in the assembly process can be achieved There was no problem.

  "Pinch for clothes drying" (refer to Patent Document 3) and "Washing shears" (refer to Patent Document 4), which are intended to simplify and automate manual operations in the assembly process, which are the above problems, are proposed. It is a known technique.

  However, the proposal of such “drying pinch” and “laundry shears” can simplify and automate the manual work in the assembly process by inserting the spring body from the rear side of the holding piece. However, since the spring body is assembled in a state of protruding from the outer contour of the pinch tool, it is possible to attach rust stains to the laundry due to surface corrosion of the metal spring or to directly touch the user's skin. The problem of developing anergy symptoms such as metal anergy could not be solved.

  Furthermore, there is a “holding device” (see Patent Document 5) that is composed of a synthetic resin sandwich piece and a spring body that are integrally molded and that should simplify the manual work in the assembly process that is the above problem. It has been proposed and is a known technique.

  However, the proposal of such a “holding device” has a problem in that the spring body is formed of the same material as the synthetic resin clamping piece, so that the elastic clamping force is weak and the clamping force is not sustained over time. .

  In addition, “a laundry clip designed to simplify assembly” composed of a synthetic resin sandwich piece and a metal spring body, which should be simplified in the assembly process (Patent Document 6) Reference) and “clip” (see Patent Document 7) have been proposed and are well-known techniques.

  However, the proposals for “washing nips that simplify assembly” and “clips” are based on the fact that the attachment means of the spring body attached to the holding piece significantly increases the number of assembly steps, and the attachment means can be automated. However, since the mounting state is unstable, there is a problem that the manual work in the assembly process cannot be simplified.

The applicant of the present invention pays attention to the problems that have the risk of developing anergy symptoms such as metal anergy as described above, and the problems that the manual process in the assembly process cannot be simplified or automated. Under the idea that it cannot be solved at once with a simple structure and means, a pair of synthetic resin clamping pieces that are integrally molded with the same shape, and pressing the pair of clamping pieces from the outside In addition to preventing metal anergy and rust stains from adhering to the laundry, it simplifies manual operations and reduces costs in the assembly process. The present inventors have developed a pinch tool for washing that can be mass-produced in automation, leading to the proposal of the “pinch tool” in the present invention.

JP 2001-224896 A Utility Model Registration No. 3069716 JP 7-222895 A Japanese Utility Model Publication No. 6-16626 Special table 2001-512040 gazette JP 2006-34902 A Japanese Utility Model Publication No. 5-74489

In view of the above problems, the present invention provides a pair of synthetic resin-made clamping pieces that are integrally molded with the same shape, and a metal spring body that presses and holds the pair of clamping pieces from the outside. It is composed of two parts to prevent metal anergy and rust stains from adhering to the laundry, simplify manual work in the assembly process and reduce costs, and further enable mass production in automation. The issue is to provide.

The pinch tool of the present invention is made to solve the above-mentioned problem , and presses a pair of sandwiching pieces made of synthetic resin having the same shape and formed integrally, and the pair of sandwiching pieces from the outside. A pinch tool composed of two parts of a metal spring body sandwiched between the gripping pieces, wherein the sandwiching piece includes a sandwiching portion located in the front, a pivot fulcrum portion located in the center, and a grip located in the rear And a jaw portion positioned between the clamping portion and the rotation fulcrum portion, and a slit groove through which the spring body is inserted from the jaw portion to the grip portion. Is formed by forming a clamping surface for clamping the article in a planar manner, and the rotation fulcrum portion is provided in an uneven shape on both sides of the slit groove provided at the center position in the thickness direction , and the slit groove The connecting part that connects the clamping pieces to the rear on both sides Become integrally molded with the pair of holding pieces, the jaws, said to form a relief space clamping unit, in the outward direction to form a guide sliding portion forming the bottom of the slit groove inwardly, The guide sliding portion is formed by forming a slope portion that bulges in a mountain shape outwardly toward the tip portion and forms a drop hole in the innermost portion thereof, and the grip portion has a rear end portion on the outside. The spring body is formed into a shape that urges the rod-like or plate-like spring member inwardly while forming an opening partly opening. In addition, both ends of the spring member forming the opening are folded inwardly, and the gripping piece is held with the opening of the spring body at the head in a state where the clamping pieces are connected to each other by the connection. From the inside direction of the part to the slit groove of the clamping piece By inserting the spring body, the tip of the spring body is pushed in along the slope portion of the guide sliding portion that swells and inclines into the mountain shape of the jaw portion, and finally the innermost portion of the slope portion The tip of the spring body is dropped into the drop-in hole and is combined .

Further, the pinch tool of the present invention includes two pairs of a synthetic resin sandwich piece integrally formed with the same shape, and a metal spring body that presses and sandwiches the pair of sandwich pieces from the outside. A pinch tool composed of parts, wherein the clamping piece includes a clamping part located in the front, a pivoting fulcrum part located in the center, a gripping part located in the rear, and the clamping part and the pivoting fulcrum part. And a slit part through which the spring body is inserted from the jaw part to the grip part, and the clamping part clamps the article in a plane. The rotation fulcrum portion is formed in an uneven shape on both sides of the insertion slit hole provided at the central position in the thickness direction, and is sandwiched behind both sides across the insertion slit hole. The connecting part that connects the pieces together with the pair of clamping pieces The jaw part forms a clearance space of the clamping part in the inner direction and forms a guide sliding part that forms the bottom surface of the insertion slit hole in the outer direction, and the guide sliding part Has a slope portion that bulges outward in a mountain shape toward the tip portion, and a drop hole is formed in the innermost portion of the slope portion. The grip portion has a rear end portion that extends outward. The spring body is formed into a shape that is urged inward while forming an opening partly opening a bar-like or plate-like spring member. Both ends of the spring member forming the inner side are folded back in the inner direction, and in a state where the sandwiching pieces are connected to each other by the connecting portion, the opening of the spring body is used as a head from the inner direction of the gripping portion. Insert the spring body into the insertion slit hole of the clamping piece. Thus, the tip of the spring body is pushed in along the slope portion of the guide sliding portion that swells and inclines into the mountain shape of the jaw portion, and finally into the drop hole in the innermost portion of the slope portion. The tip of the spring body is dropped and combined .

Further, the pinch tool of the present invention includes two pairs of a synthetic resin sandwich piece integrally formed with the same shape, and a metal spring body that presses and sandwiches the pair of sandwich pieces from the outside. A pinch tool composed of parts, wherein the clamping piece includes a clamping part located in the front, a pivoting fulcrum part located in the center, a gripping part located in the rear, and the clamping part and the pivoting fulcrum part. And a jaw part positioned between the pinion part and the pivoting fulcrum part. The spring body is inserted from the pivoting fulcrum part to the gripping part. An insertion long hole is formed, and the holding part forms a holding surface for holding the article in a plane, and a drop groove is formed outside the holding part, and the turning fulcrum part has a thickness. In addition to being arranged in an uneven shape on both sides of the insertion slot provided in the center position in the direction, A connecting portion for connecting the holding pieces to each other behind the insertion long hole is integrally formed with the pair of holding pieces, and the jaw portion forms an escape space of the holding portion in the inner direction. The gripping portion is formed in a grip-like shape whose rear end portion expands outward, and the spring body forms an opening partly opening a rod-like or plate-like spring member. While forming in a shape to be urged in the inner direction while forming both ends of the spring member forming the opening folded back in the inner direction, in a state where the sandwiching pieces are connected by the connecting portion, A means is adopted in which the tip end portion of the spring body is dropped into a drop groove formed outside the holding portion of the holding piece .

According to the pinch tool of the present invention, a pair of synthetic resin-made clamping pieces that are integrally molded with the same shape, and a metal spring body that presses and holds the pair of clamping pieces from the outside. Consisting of two parts prevents metal anergy and rust stains from adhering to the laundry, simplifies manual work and reduces costs in the assembly process, and fits the spring body from the rear of the clamping piece. By adopting a structure that can be used, there is an excellent effect of enabling mass production in automation.

Further, according to the pinch tool of the present invention, both the insertion slit holes provided at the center in the thickness direction are provided in an uneven shape on both sides, and the connecting pieces are connected to both sides rearward across the insertion slit holes. by Rukoto it is integrally formed with a pair of holding pieces parts, since it is not necessary to combine each other pinching piece, reducing man-hours of manual simplified and automated assembly line process in the assembly process is achieved, further spring body By passing through and fitting as it is without straddling the rotation fulcrum part and the connecting part, there is an excellent effect that the entire pinch tool can be made compact.

According to pinch device of the present invention, by Rukoto to integrally forming the connecting portion with a pair of holding pieces for connecting the clamping strip to each other on both sides rearwardly across the insertion slit holes, reducing man-hours of assembly process in the subsequent step Figure At the time of use, it has an excellent effect that the rotation operation can be smoothly performed by the concave and convex protrusion grooves of the rotation fulcrum portion.

  Further, according to the pinch device of the present invention, by providing the spring body within the outer contour of the pinch device, it is possible to prevent rust stains from adhering to the laundry due to surface corrosion of the metal spring and to directly touch the user's skin. Since this can be completely avoided, there is an excellent effect that anergy symptoms such as metal anergy can be prevented.

  Further, according to the pinch tool of the present invention, the spring body is provided in the outer contour of the pinch tool, so that the pinch tool itself can be made compact, and at the same time, the pinch for drying the futon, the pinch for the clothespin, and the square hanger pinch. Such an excellent effect that it can be used as a household or industrial pinch device.

  Moreover, according to the pinch tool of this invention, there exists an outstanding effect that the functional universal design which a spring body does not protrude from the external shape outline of a pinch tool can be given.

In addition, according to the pinch tool of the present invention, it is possible to mass-produce by automation by adopting a structure in which a conventional ring-shaped spring body can be fitted from behind the sandwiching piece, and by injection molding processing. Since it is not necessary to combine a pair of clamping pieces by having the connecting portion formed, an excellent effect that a low-cost pinch tool can be produced is achieved.

Further, according to the pinch tool of the present invention, since it is not necessary to combine a pair of sandwiching pieces by using a conventional ring-shaped spring body and a connecting portion of the integrally formed sandwiching pieces, the conventional assembly is performed. There is an excellent effect that a low-cost pinch tool can be manufactured with a minimum equipment investment without greatly changing the process.

It is explanatory drawing which shows the pinch tool of Claim 1 of this invention. Example 1 It is explanatory drawing which shows another embodiment of the pinch tool of Claim 1 of this invention. It is explanatory drawing which shows the pinch tool of Claim 2 of this invention. (Example 2) It is explanatory drawing which shows the pinch tool of Claim 3 of this invention. (Example 3)

The pinch tool 10 of the present invention includes a pair of synthetic resin sandwiching pieces 20 that are integrally molded with the same shape, and a metal spring body 33 that presses and sandwiches the pair of sandwiching pieces 20 from the outside. a pinch device 10 consisting of two parts, the holding piece 20 has a clamping portion 21 located in front, a pivot point 23 located at the center, the gripper 30 located behind, the It comprises a jaw part 25 positioned between the clamping part 21 and the rotation fulcrum part 23, and is formed by forming a slit groove 31 through which the spring body 33 is inserted from the jaw part 25 to the grip part 30. The portion 21 is formed by forming a holding surface 22 for holding the article in a planar manner, and the rotation fulcrum portion 23 is provided in an uneven shape on both sides of the slit groove 31 provided at the center position in the thickness direction . A pair of clamps behind both sides of the slit groove 31 The connecting portion 24 for connecting the 20 together by integrally molded with a pair of nipping pieces 20, while preventing the adhesion of the laundry metal anergy and rust stains, aims to simplify and reduce costs of assembly operations, a large amount in the further automation In particular, it is possible to produce, and in particular, by providing a connecting portion 24 behind the rotation fulcrum portion 23 and integrally forming the pair of sandwiching pieces 20, it is possible to simplify the manual work in the assembly process. This is the biggest feature. Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The pinch tool 10 according to the present invention is not particularly limited to the embodiments described below, and is within the scope of the technical idea of the present invention, that is, within the range of the shape, size and material capable of exhibiting the same operational effects. Can be changed as appropriate.

FIG. 1 is an explanatory view showing a pinch device according to claim 1 of the present invention.
Fig.1 (a) is explanatory drawing which shows the state shape | molded by the injection molding machine.
The left figure is a front sectional view of the pinch tool 10, and the right figure is a side view of the pinch tool 10 as viewed from the direction of the grip 30.
The pinch tool 10 of the present invention includes a pair of synthetic resin sandwiching pieces 20 that are integrally molded with the same shape, and a metal spring body 33 that presses and sandwiches the pair of sandwiching pieces 20 from the outside. a pinch device 10 consisting of two parts, the holding piece 20 has a clamping portion 21 located in front, a pivot point 23 located at the center, the gripper 30 located behind, the It comprises a jaw part 25 positioned between the clamping part 21 and the rotation fulcrum part 23, and is formed by forming a slit groove 31 through which the spring body 33 is inserted from the jaw part 25 to the grip part 30. The portion 21 is formed by forming a holding surface 22 for holding the article in a planar manner, and the rotation fulcrum portion 23 is provided in an uneven shape on both sides of the slit groove 31 provided at the center position in the thickness direction . A pair of clamps behind both sides of the slit groove 31 Formed by integrally molding a connecting part 24 for connecting the 20 together with a pair of nipping pieces 20.

The clamping piece 20 includes a clamping part 21 positioned at the front, a rotation fulcrum part 23 positioned at the center, a gripping part 30 positioned at the rear, and a jaw positioned between the clamping part 21 and the rotation fulcrum part 23. And a slit groove 31 through which the spring body 33 is inserted from the jaw portion 25 to the grip portion 30. Further, since the connecting portion 24 formed by injection molding is provided behind the rotation fulcrum 23, it is not necessary to combine the pair of sandwiching pieces 20 with each other, simplifying manual work in the assembly process and assembling an automated line. The number of processes can be reduced.

  The sandwiching portion 21 is formed by forming a sandwiching surface 22 for sandwiching an article in a planar manner at the tip, and the specific shape is not particularly limited as long as it is planar, and is a mountain-shaped jagged groove. , Streak, knurled anti-slip, etc.

The rotation fulcrum portion 23 is located substantially at the center of the sandwiching piece 20 and is provided in an uneven shape on both sides of the slit groove 31 provided at the center position in the thickness direction , and on both rear sides sandwiching the slit groove 31. The connecting portion 24 that connects the pair of sandwiching pieces 20 together is formed integrally with the pair of sandwiching pieces 20 . In terms of shape, it can also be formed by a semicircular concavo-convex fitting projection groove or the like in addition to the concavo - convex projection groove illustrated.

The connecting portion 24 is located substantially at the center of the sandwiching piece 20, and a pair of sandwiching pieces 20 are integrally formed in a band shape and connected to both rear sides sandwiching the slit groove 31 provided at the center position in the thickness direction. Between the end of the injection molding process and the assembly process, it is necessary to combine the pair of sandwiching pieces 20 with the main purpose of maintaining the positional relationship between the upper sandwiching piece 20 and the lower sandwiching piece 20. Therefore, the manual operation in the assembly process is simplified and the number of steps in the assembly process of the automated line can be reduced. Further, a crease or a break slit may be provided in order to provide a folding function or a separating function. Further, after the pair of sandwiching pieces 20 are combined with each other by the spring body 33, the role is finished, so that the material strength and durability are not particularly required.

  The jaw portion 25 forms a clearance space 26 of the clamping portion 21 in the inner direction, and forms a guide sliding portion 27 that forms the bottom surface of the slit groove 31 in the outer direction, and the guide sliding portion 27 is formed at the tip portion. The slope portion 28 bulges outward in a mountain shape and slopes, and a drop hole 29 is provided at the innermost portion thereof.

  The slope portion 28 is formed on the bottom surface of the jaw portion 25 so as to swell and incline toward the tip portion, and is inclined outward toward the tip portion. Since the opening 34 is incorporated in a slightly expanded state, it is combined in a state in which the sandwiching piece 20 is always urged inward. In addition, the slope portion 28 is formed in a shape that prevents the tip end portion of the opening 34 of the spring body 33 from falling off the drop-in hole 29 by bulging and inclining in a mountain shape.

  The grip portion 30 is formed in a shape in which a suspension hole into which a suspension hook is inserted is formed in the rear end portion, and the rear end portion is expanded outward. By providing the holding hole through which the hanging hook is inserted, the pinch tool 10 itself can be freely hung on the clothesline or the hanger, so that it can be used properly according to the shape and type of the laundry.

The slit groove 31 is a slit-like groove through which the spring body 33 is inserted from the jaw portion 25 to the grip portion 30, and is provided at the center position in the thickness direction of the sandwiching piece 20. Further, by incorporating the spring body 33 into the outer contour, the pair of sandwiching pieces 20 are formed in a shape that is combined while being urged inward.
1 (a), (b), and (c), the drawing is performed in a shape in which the outer side is closed, but the insertion slit hole 32 can be inserted from the inside to the outside.

The spring body 33 is formed by forming a metal bar-like or plate-like spring member into a shape that forms an opening 34 that is partially open and biases it inward, and both ends of the opening 34 are directed inward. It is formed in a folded state. Moreover, mass production by automation is enabled by adopting a structure in which the spring body 33 can be fitted from behind the sandwiching piece 20.
The shape of the spring body 33 is not particularly limited as long as it is a shape that energizes a spring member such as a square in addition to a circle or an ellipse, and is positioned and incorporated within the outer contour. is not.

  The opening 34 is formed by opening a part of the spring body 33, and both ends thereof are folded back in a U shape. By folding both ends, the tip is rounded, and can be smoothly pushed in without being caught by the slope 28 that swells and slopes at the time of insertion, and is inserted into the innermost part of the slope 28. It has a shape that prevents it from falling out of the state of being dropped into a certain drop hole 29.

FIG. 1B is an explanatory view showing a state in which the spring body 33 is attached to the holding piece 20.
The left figure is a front sectional view of the pinch tool 10, and the right figure is a side view of the pinch tool 10 as viewed from the direction of the grip 30.
A connecting portion 24 for connecting the pair of sandwiching pieces 20 to each other is formed on both sides of the slit groove 31 provided at the center in the thickness direction of the pair of synthetic resin sandwiching pieces 20 that are integrally molded with the same shape. Thus, the spring body 33 can be inserted through without being straddled between the rotation fulcrum portion 23 and the connecting portion 24.

FIG. 1C is an explanatory view showing a state where the spring body 33 is attached to the holding piece 20 and is opened.
The left figure is a front sectional view of the pinch tool 10, and the right figure is a side view of the pinch tool 10 as viewed from the direction of the grip 30.
By inserting the metal spring body 33 without passing over the rotation fulcrum portion 23 and the connecting portion 24 of the pair of synthetic resin clamping pieces 20 that are integrally molded with the same shape, the spring body is fitted. 33 can be incorporated in a structure that does not protrude outside the outer contour of the pinch tool 10.

Briefly describing the manufacturing process of the pinch tool 10 of the present invention,
(1) Injection molding is performed in a state where the pair of sandwiching pieces 20 are connected to each other by the connecting portion 24.
Since the upper and lower clamping pieces 20 are simultaneously processed by an injection molding machine, there is almost no difference in the number of processing steps compared to the case where the clamping pieces 20 are injection molded.
(2) The spring body 33 is fitted from the rear side of the sandwiching piece 20 in a state where the rotation fulcrum portions 23 of the pair of sandwiching pieces 20 are combined.
At this point, the role of the connecting portion 24 that connects the pair of sandwiching pieces 20 ends.

The pinch tool 10 according to the first aspect of the present invention configured as described above is configured by fitting metal spring bodies 33 having different shapes into a pair of synthetic resin sandwiching pieces 20 which are integrally molded with the same shape . In addition, simplification of manual work and cost reduction in the assembly process are achieved, and furthermore, the adoption of a structure in which the spring body 33 can be fitted from behind the clamping piece 20 enables mass production in automation. Since the connecting portions 24 are provided on both sides behind the rotation fulcrum 23, it is not necessary to combine the pair of sandwiching pieces 20 with each other. Is planned. Further, the whole pinch tool 10 can be made compact by allowing the spring body 33 to be inserted through without being straddled between the rotation fulcrum portion 23 and the connecting portion 24. Furthermore, by providing the spring body 33 within the outer contour of the pinch tool 10, it is possible to prevent rust stains from adhering to the laundry due to surface corrosion of the metal spring and to completely avoid direct contact with the user's skin. In addition, it is possible to obtain an excellent effect that anergy symptoms such as metal anergy can be prevented.

FIG. 2 is an explanatory view showing another embodiment of the pinch device according to claim 1 of the present invention.
Fig.2 (a) is explanatory drawing which shows the state shape | molded by the injection molding machine.
The left figure is a front sectional view of the pinch tool 10, and the right figure is a side view of the pinch tool 10 as viewed from the direction of the grip 30.
FIG. 2B is an explanatory view showing a state in which the rectangular spring body 33 is attached to the holding piece 20.
The left figure is a front sectional view of the pinch tool 10, and the right figure is a side view of the pinch tool 10 as viewed from the direction of the grip 30.
FIG. 2C is an explanatory view showing a state in which the rectangular spring body 33 is attached to the holding piece 20 and opened.
The left figure is a front sectional view of the pinch tool 10, and the right figure is a side view of the pinch tool 10 as viewed from the direction of the grip 30.

  The rectangular spring body 33 is used in a state where a part of the rectangular spring body 33 protrudes within the movable range of the gripping portion 30 of the sandwiching piece 20. In the drawing, the rectangular spring body 33 is displayed. The shape is not particularly specified as long as it is used in a state of protruding within the movable range.

  As an assembling method, the rectangular spring body 33 is inserted in a state straddling the rotating fulcrum portion 23 and the connecting portion 24 provided on both sides of the slit groove 31 provided at the center of the sandwiching piece 20 in the thickness direction. .

In another embodiment of the pinch tool 10 according to the first aspect of the present invention configured as described above, the protruding state of the square spring body 33 is within the movable range of the grip portion 30, so that the pinch tool 10 itself is Can be made compact, and at the same time, direct contact with the laundry and the user's skin can be avoided. In addition, since it is not necessary to combine the pair of sandwiching pieces 20 by providing the connecting portion 24 formed by injection molding, it is possible to simplify the manual work in the assembly process and to reduce the man-hours of the automated line. An effect is obtained.

FIG. 3 is an explanatory view showing a pinch tool according to claim 2 of the present invention.
Fig.3 (a) is explanatory drawing which shows the state shape | molded by the injection molding machine.
The left figure is a front sectional view of the pinch tool 10, and the right figure is a side view of the pinch tool 10 as viewed from the direction of the grip 30.
The pinch tool 10 of the present invention includes a pair of synthetic resin sandwiching pieces 20 that are integrally molded with the same shape, and a metal spring body 33 that presses and sandwiches the pair of sandwiching pieces 20 from the outside. The pinching tool 10 is composed of the following two parts: a sandwiching piece 20 includes a sandwiching portion 21 located at the front, a rotation fulcrum portion 23 located at the center, a gripping portion 30 located at the rear, It is composed of a jaw part 25 positioned between the clamping part 21 and the rotation fulcrum part 23, and is formed by forming an insertion slit hole 32 through which the spring body 33 is inserted from the jaw part 25 to the grip part 30. The clamping part 21 is formed by forming a clamping surface for clamping the article in a plane, and the rotation fulcrum part 23 is provided in an uneven shape on both sides of the insertion slit hole 32 provided at the center position in the thickness direction. , One behind the both sides of the insertion slit hole 32 Formed by integrally molding a connecting part 24 for connecting the clamping piece 20 between a pair of nipping pieces 20.

The connecting portion 24 is located substantially at the center of the sandwiching piece 20, and a pair of sandwiching pieces 20 are integrally formed in a band shape and connected to both sides behind the insertion slit hole 32 provided at the center position in the thickness direction. . Between the end of the injection molding process and the assembly process, it is necessary to combine the pair of sandwiching pieces 20 with the main purpose of maintaining the positional relationship between the upper sandwiching piece 20 and the lower sandwiching piece 20. Therefore, the manual operation in the assembly process is simplified and the number of steps in the assembly process of the automated line can be reduced. Further, a crease or a break slit may be provided in order to provide a folding function or a separating function. Further, after the pair of sandwiching pieces 20 are combined with each other by the spring body 33, the role is finished, so that the material strength and durability are not particularly required.

  The insertion slit hole 32 is a slit-like through hole through which the spring body 33 is inserted from the jaw portion 25 to the grip portion 30, and is provided at the center position in the thickness direction of the holding piece 20.

FIG. 3B is an explanatory view showing a state in which the spring body 33 is attached to the holding piece 20.
The left figure is a front sectional view of the pinch tool 10, and the right figure is a side view of the pinch tool 10 as viewed from the direction of the grip 30.
As an assembling method, the spring body 33 is inserted in a state of straddling the rotation fulcrum portion 23 and the connecting portion 24 provided on both sides of the insertion slit hole 32. The shape of the spring body 33 is not particularly limited as long as it is a shape that biases the spring member inward.

FIG. 3C is an explanatory diagram showing a state in which the spring body 33 is attached to the holding piece 20 and opened.
The left figure is a front sectional view of the pinch tool 10, and the right figure is a side view of the pinch tool 10 as viewed from the direction of the grip 30.
When the sandwiching piece 20 is sandwiched by the substantially C-shaped spring body 33 from the outer side, the sandwiched object can be sandwiched with a strong sandwiching force with a large opening distance of the sandwiching surface 22.

The pinch tool 10 according to the second aspect of the present invention configured as described above includes a pair of synthetic resin sandwiching pieces 20 that are integrally formed with the same shape, and a ring-shaped spring body 33 from the rear of the sandwiching piece 20. By adopting a structure that can be fitted, mass production by automation is possible, and by using a conventional ring-shaped spring body, a connecting portion 24 formed by injection molding is provided. Since it is not necessary to combine the pair of sandwiching pieces 20 with each other, an excellent effect that a low-cost pinch tool can be manufactured is obtained.

FIG. 4 is an explanatory view showing a pinch tool according to claim 3 of the present invention.
Fig.4 (a) is explanatory drawing which shows the state shape | molded by the injection molding machine.
The left figure is a front sectional view of the pinch tool 10, and the right figure is a side view of the pinch tool 10 as viewed from the direction of the grip 30.
The pinch tool 10 of the present invention includes a pair of synthetic resin sandwiching pieces 20 that are integrally molded with the same shape, and a metal spring body 33 that presses and sandwiches the pair of sandwiching pieces 20 from the outside. The sandwiching piece 20 includes a sandwiching portion 21 located at the front, a pivotal fulcrum portion 23 located at the center, a gripping portion 30 located at the rear, and the sandwiching piece 20. The chin portion 25 is located between the portion 21 and the rotation fulcrum portion 23, and the space between the pinching portion 21 and the rotation fulcrum portion 23 of the holding piece 20 is formed in a solid state, and the rotation fulcrum portion An insertion slot 36 into which the spring body 33 is inserted is formed from 23 to the grip portion 30 , and a drop groove 35 into which the tip of the spring body 33 is dropped is formed outside the clamping portion 21 of the clamping piece 20. .

  The insertion long hole 36 is a through long hole through which the spring body 33 is inserted from the rotation fulcrum part 23 to the grip part 30, and is provided at the center position in the thickness direction of the holding piece 20.

FIG. 4B is an explanatory view showing a state where the spring body 33 is mounted on the holding piece 20.
The left figure is a front sectional view of the pinch tool 10, and the right figure is a side view of the pinch tool 10 as viewed from the direction of the grip 30.
The pinch tool 10 of the present invention is assembled by an assembly procedure as shown in FIG. 2 of Utility Model Registration No. 3069716 (Patent Document 2). Further, at the time of assembly, since the pair of sandwiching pieces 20 are integrally formed, the spring body 33 can be easily passed through the insertion long hole 36 of the sandwiching piece 20.

FIG. 4C is an explanatory view showing a state in which the spring body 33 is attached to the holding piece 20 and opened.
The left figure is a front sectional view of the pinch tool 10, and the right figure is a side view of the pinch tool 10 as viewed from the direction of the grip 30.
The pinch tool 10 of the present invention clamps a clamped object with a strong clamping force that maximizes the opening distance of the clamping surface 22 when the clamping piece 20 is sandwiched by a substantially C-shaped spring body 33 from the outside direction. can do.

The pinch tool 10 according to the third aspect of the present invention configured as described above uses the connecting portion 24 of the pair of sandwiching pieces 20 that are integrally molded in the same shape as the conventional ring-shaped spring body, Since it is not necessary to combine the pair of sandwiching pieces 20 with each other, it is possible to obtain an excellent effect that a low-cost pinch tool can be manufactured with a minimum equipment investment without greatly changing the conventional assembly process.

The pinch tool of the present invention has two parts, a pair of synthetic resin sandwich pieces integrally formed with the same shape, and a metal spring body that presses and sandwiches the pair of sandwich pieces from the outside. The construction of this product prevents metal anergy and rust stains from adhering to the laundry, simplifies manual operations and reduces costs in the assembly process, and enables mass production in automation. Pinch for clothes, pin for clothespin, square hanger pinch, stationary office clip, industrial and commercial fasteners such as industrial and commercial pinches that are inexpensive and can be mass-produced by automation Therefore, it is understood that the industrial applicability of the “pinch device” in the present invention is great.

DESCRIPTION OF SYMBOLS 10 Pinch tool 20 Clamping piece 21 Clamping part 22 Clamping surface 23 Rotating fulcrum part 24 Connecting part 25 Jaw part 26 Relief space 27 Guide sliding part 28 Slope part 29 Drop hole 30 Gripping part 31 Slit groove 32 Insertion slit hole 33 Spring body 34 Opening 35 Drop groove 36 Insertion slot

Claims (3)

A pinch tool composed of two parts: a pair of synthetic resin-made clamping pieces that have the same shape and a metal spring body that presses and holds the pair of clamping pieces from the outside. There,
The clamping piece is composed of a clamping part located in the front, a pivoting fulcrum part located in the center, a gripping part located in the rear, and a jaw part located between the clamping part and the pivoting fulcrum part. And forming a slit groove through which the spring body passes from the jaw part to the grip part,
The clamping part is formed by forming a clamping surface for clamping the article in a plane,
The rotating fulcrum portion is provided in a concavo-convex shape on both sides of the slit groove provided at the center position in the thickness direction , and a connecting portion for connecting the clamping pieces to each other at the rear side of the slit groove. Formed integrally with a pair of clamping pieces ,
The jaw portion forms a clearance space of the clamping portion in the inner direction and a guide sliding portion that forms the bottom surface of the slit groove in the outer direction, and the guide sliding portion faces the tip portion. The slope part which bulges in the shape of a mountain in the outer direction and slopes, and a drop hole is formed in the innermost part,
The grip portion is formed by a gripped hand shape whose rear end portion expands in the outer direction,
The spring body is formed into a shape in which a bar-shaped or plate-shaped spring member is urged inward while forming an opening partly opening , and both ends of the spring member forming the opening are directed inwardly It is folded back to
In a state where the sandwiching pieces are connected to each other by a connecting portion, the spring body is inserted into the slit groove of the sandwiching piece from the inner side direction of the gripping portion with the opening of the spring body as a head. The tip of the spring body is pushed into the sloped portion of the guide sliding part that swells and inclines in the shape of the mountain of the jaw part, and finally into the drop hole in the innermost part of the slope part. A pinch device characterized by the fact that they are dropped and combined . A pinch tool composed of two parts: a pair of synthetic resin-made clamping pieces that have the same shape and a metal spring body that presses and holds the pair of clamping pieces from the outside. There,
The clamping piece is composed of a clamping part located in the front, a pivoting fulcrum part located in the center, a gripping part located in the rear, and a jaw part located between the clamping part and the pivoting fulcrum part. And forming an insertion slit hole through which the spring body is inserted from the jaw part to the grip part,
The clamping part is formed by forming a clamping surface for clamping the article in a plane,
The rotating fulcrum portion is provided in a concavo-convex shape on both sides of the insertion slit hole provided at the center position in the thickness direction, and a connecting portion for connecting the clamping pieces to both sides rearward of the insertion slit hole Formed integrally with the pair of clamping pieces,
The jaw portion forms a clearance space of the clamping portion in the inner direction, and forms a guide sliding portion that forms the bottom surface of the insertion slit hole in the outer direction, and the guide sliding portion has a tip portion at the tip portion. Slope part that bulges in the shape of a mountain toward the outside and inclines, and is formed by forming a drop hole in its innermost part,
The grip portion is formed by a gripped hand shape whose rear end portion expands in the outer direction,
The spring body is formed into a shape in which a bar-shaped or plate-shaped spring member is urged inward while forming an opening partly opening, and both ends of the spring member forming the opening are directed inwardly It is folded back to
In a state where the sandwiching pieces are connected to each other by a connecting portion, the spring body is inserted into the insertion slit hole of the sandwiching piece from the inner side direction of the gripping portion with the opening of the spring body at the head, thereby the spring The tip of the spring body is pushed into the drop hole in the innermost part of the slope portion, and the tip of the body is pushed along the slope portion of the guide sliding portion that swells and inclines into the mountain shape of the jaw portion. A pinch device characterized in that parts are dropped and combined. A pinch tool composed of two parts: a pair of synthetic resin-made clamping pieces that have the same shape and a metal spring body that presses and holds the pair of clamping pieces from the outside. There,
The clamping piece is composed of a clamping part located in the front, a pivoting fulcrum part located in the center, a gripping part located in the rear, and a jaw part located between the clamping part and the pivoting fulcrum part. And
Forming between the clamping part of the clamping piece and the rotation fulcrum part in a solid state, and forming an insertion long hole through which the spring body is inserted from the rotation fulcrum part to the gripping part,
The sandwiching portion forms a sandwiching surface for sandwiching the article in a planar manner, and forms a drop groove on the outside of the sandwiching portion,
The rotation fulcrum portion is provided in an uneven shape on both sides of the insertion elongated hole provided at the center position in the thickness direction, and a connecting portion that connects the sandwiching pieces to both sides rearward of the insertion elongated hole Formed integrally with the pair of clamping pieces,
The jaw part is formed by forming an escape space of the clamping part in the inner direction,
The grip portion is formed by a gripped hand shape whose rear end portion expands in the outer direction,
The spring body is formed into a shape in which a bar-shaped or plate-shaped spring member is urged inward while forming an opening partly opening, and both ends of the spring member forming the opening are directed inwardly It is folded back to
A pinch tool characterized in that, in a state where the holding pieces are connected to each other by a connecting portion, the tip end portion of the spring body is dropped into a drop groove formed on the outside of the holding portion of the holding piece.

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