JP6288765B2 - Removable fastener - Google Patents

Description

  The present invention relates to a detachable resin fastener, and more particularly to a detachable resin fastener that can hold perforated paper.

Conventional resin fasteners generally do not come off once fitted. For example, the utility model registration request in Japanese Utility Model Publication No. 48-014226 (Patent Document 1 to be described later) includes: “On one end of the belt-like piece 1, an insertion port 2 through which the other end piece can be inserted is provided. A latch 4 is arranged in a binding hole 3 for bundling provided adjacent to the band-like piece 1 extending from the latch part to the other end of the remaining part. A bundled band is disclosed in which 5 are provided in rows at appropriate intervals and the whole is molded of a soft synthetic resin material such as vinyl chloride.
However, this resin fastener says, “This type of temporary sealing body has a circular shape similar to both the shape of the top edge of the boss and the shape of the through hole (6) into which the boss is inserted. In addition, in order to fit the boss into the through-hole, the entire periphery contacts with all the through-holes and the entire through-hole portion is deformed at the same time. If it is small, the engagement is not sufficient even if it is easy to fit, and there is a drawback that it is easy to pull out (the full description of Japanese Utility Model Publication No. 48-77389 (Patent Document 2 described later)). 2 lines 12-19) ”.

Further, the invention according to the full text specification (Patent Document 2 to be described later) according to Japanese Utility Model Publication No. 48-77389 discloses that the shape of the peripheral edge (3) of the top (2) of the boss (1) is fitted and engaged. As shown in FIG. 1 and FIG. 2, an invention is disclosed in which the shape of the through hole (6) is, for example, a circle and a triangle.
However, this resin fastener has to be greatly deformed by twisting the through hole (6) when trying to remove the boss (1) fitted and engaged at three locations from the triangular through hole (6). Hanahada was not easy to use.

In addition, the full-text specification (Patent Document 3 to be described later) related to Japanese Utility Model Publication No. 62-19937 discloses "a slip, a document, a card, a paper bag or a paper tag enclosing a document, etc. A retaining body (1) provided with a fitting protrusion (2) having a locking portion (4) at a lower position of the tip (3) formed in a cone shape. A paper which is formed integrally with a pinching body (5) provided with a fitting hole (6) into which the fitting protrusion (2) is fitted and engaged when bent. As for the “holder”, as shown in FIGS. 1 and 2, the case where two fitting protrusions (2) and two fitting holes (6) are provided is disclosed.
However, in this fastener, the conical tip of the fitting protrusion of the holding body (1) is “pierced through the paper and fitted into the fitting hole of the clamping body, and is fixed by the locking portion (same as above). Full-text specification (Patent Document 3 to be described later) 3 pages, lines 16 to 18) ”, and paper is a metal that can be perforated. For this reason, even if this can be replaced with a resin such as plastic and the paper can be perforated and penetrated, the entire periphery of the fitting protrusion is in contact with all of the through-holes. As with wire bands, it is difficult to remove the attached fasteners.

Further, the invention according to Japanese Patent Application Laid-Open No. 8-217133 (Patent Document 4 described later) includes power cords, plant vines, binding of string-like objects such as hair, binding of small cards and documents, or hanging accessories. As shown in FIG. 1 of Patent Document 4, as a fastener that can be widely used as a part or the like, “a rod-shaped body portion having a predetermined length and a part of the body portion provided at one end of the body portion. A fixing portion provided with an insertion hole for inserting a through hole and a notch that allows a part of the body portion to be inserted into the insertion hole, and a portion of the body portion from the insertion hole. A fastener "is disclosed that is made of an elastic material provided with a retaining portion that prevents the slipping out.
However, as shown in FIG. 5B of Patent Document 4, this fastener has “a notch 3b that allows the insertion hole 3a to communicate with the outside”. It has become. Further, since the “cut 3b is a passage for guiding a part of the body part 2 to the insertion hole 3a and has a gap smaller than the diameter of the body part 2”, the body part 2 must be a line. However, it is difficult to use as a connection band, particularly a wide connection band (including a tape-shaped connection band).

Japanese Utility Model Publication No. 48-014226 Full text of Japanese Utility Model Publication No. 48-77389 Full text of Japanese Utility Model Publication No. 62-19937 JP-A-8-217133

The present invention has been made in view of the above problems, and even if it is a single or multiple rows of wide connecting bands, all of which are made of resin, it can be easily inserted and removed while securely fitting. It is an object of the present invention to provide a detachable fastener that is easy to remove.

As a means for solving the above problems, the invention according to claim 1, collar (5) locking portion having a erected been protruding pieces (6) onto (2) the annular hole (15 ) are connected by fitting-in portion having a (4) and is connected band consisting previous band (13) and a rear band (13 ') (3), a truncated cone in its projecting piece (6) cylindrical body (7) The projection piece (6) has slit grooves formed in the front-rear direction of the connection band (3) , and the truncated cone is located in front of the connection band (3) . The left and right notch surfaces (11, 11 ′) are formed in the direction, and the maximum length in the front-rear direction of the left and right locking surfaces (17, 17 ′) of the left and right truncated cones (8, 8 ′) it no longer than the diameter of the hole (15), both left and right in the 'lateral locking surface (17, 17) left and right truncated cone (8,8)' Maximum length of the horizontal direction, the length excluding the length of the slit groove width long and the maximum length of the horizontal direction than the diameter of the annular hole (15) the diameter of the annular hole (15) And a detachable fastener (1) characterized in that the front band (13) and the rear band (13 ') are connected by a semicircular joint (14) .

As another means for solving the above-mentioned problem, the invention according to claim 2 provides:Collar (5 ) Locking portion (2) provided with a protruding piece (6) erected on the top and a fitting portion provided with an annular hole (15) (4) is connected by a connecting band (3) comprising a front band (13) and a rear band (13 ′). The projecting piece (6) has a shape in which a truncated cone is placed on the cylindrical body (7).In the resin fastener, the protruding piece(6)Is the connecting band(3)A slit groove is formed in the front-rear direction, and the truncated cone is the connecting band.(3)ForwardLeft and right cut-out surfaces (11, 11 ')That is formed, thatLeft and rightTruncated cone(8, 8 ')ofLeft and rightLocking surface(17, 17 ')The maximum length in the front-rear direction is(15)Its not longer than the diameter of itsLeft and rightTruncated cone(8, 8 ')of Left and rightLocking surface(17, 17 ')The maximum horizontal length in both the left and right sides is the annular hole(1 5)The length obtained by removing the slit groove width from the maximum horizontal length is longer than the diameter of the annular hole.(15)Shorter than the length of the diameter of the tip band(1 3)And rear band(13 ')Semi-circle fitting(14)Removable fastener characterized by being connected by(1)It is.
 

Further, in the invention described in claim 3 , the detachable fastener according to claim 1 or 2, wherein the left and right cut-out surfaces (11, 11 ') are symmetrical. 1).

The invention according to claim 4 is the detachable fastener (1) according to claim 1 or 2, wherein the slit groove is a U-shaped slit groove.

The invention according to claim 5 is characterized in that the thickness of the collar (5) of the locking portion (2) and the thickness of the fitting portion (4) are thicker than the thickness of the connecting band (3). A detachable fastener (1) according to claim 1 or claim 2.

The invention according to claim 6 is characterized in that the connecting band (3) is provided with a linear concave and convex groove on a surface opposite to the side having the projecting piece (6). Or a detachable fastener (1) according to claim 2.

In the invention according to claim 7 , the semicircular joint (14) has a proximal tongue piece (19) and a distal tongue piece (19 ') extending from end faces of the front band (13) and the rear band (13'). ) Is a detachable fastener (1) according to claim 2, characterized in that each is provided.

In the present invention, the slit groove of the projecting piece is formed in the front-rear direction of the connecting band by pinching the truncated cone of the projecting piece with a finger to reduce the maximum horizontal width of the locking surface which is the bottom surface of the truncated cone. This is to make it possible. For this reason, the maximum horizontal lengths of both the left and right sides of the locking surface forming the bottom surface of the truncated cone are longer than the diameter of the annular hole and the diameter of the slit groove, excluding the length of the slit groove width. It was decided to be short.

In the present invention, the maximum length in the front-rear direction of the locking surface of the truncated cone is not longer than the diameter of the annular hole. This is so that it can come out of the hole. Here, “not longer than the diameter of the annular hole” means that when the frustum is pinched with a finger, the locking surface of the frustum substantially enters and exits the annular hole due to the elasticity of the resin. It means that it can be done and does not formally mean the numerical value of the locking surface and the numerical value of the annular hole. That is, in the present invention, the projecting piece that has been fitted to the annular hole at three or more locking surfaces in the prior art is substantially fitted at two horizontal locking surfaces when being inserted and removed. Then, if the slit width is equal to or larger than the difference between the maximum length in the left-right direction of the locking surface of the truncated cone and the diameter of the annular hole, the protrusions are horizontally fitted by pinching the protruding pieces with fingers. The locking surface is not fitted and the projection piece can be easily attached and detached. If the slit groove is a U-shaped slit groove, it is easier to attach and detach the protruding piece.

In the present invention, the left and right cut-out surfaces of the truncated cone are for facilitating insertion of the annular hole by eliminating the longitudinal catch of the annular hole. In addition, the maximum length in the front-rear direction of the locking surface of the truncated cone of the protruding piece is not longer than the diameter of the annular hole because the protruding piece is locked in the front-rear direction when aligned in the forward direction. This is so that only two places on the left and right in the horizontal direction are locked.

In the present invention, the semicircular joint is provided in order to keep the shape of the original fastener even if it is repeatedly attached and detached. For example, even when the protruding piece inserted into the annular hole is removed from the annular hole, the semicircular joint retains its original semicircular shape rather than the force of the connecting band to open the semicircular opening of the semicircular joint. Since the force to do so is strong, the semicircular shape does not collapse and the semicircular joint retains the original semicircular shape. Moreover, by providing the tongue piece, the semicircular joint tries to retain the original semicircular shape even when the protruding piece is inserted into the annular hole or not. On the other hand, if the front band and the rear band are appropriately curled, the connecting band can be held in a substantially horizontal position. Therefore, the protruding piece inserted into the annular hole due to the rigidity of the resin is close to the annular hole. It will be continuously boosted from the mating end, making it difficult to come off. For this reason, it becomes possible to attach and detach repeatedly.

More preferably, the semicircular joint has a volume larger than that of the front band and the rear band. For example, the thickness of the semicircular joint can be made larger than the thickness of the connecting band. By making the thickness of the semicircular joint larger than the thickness of the connection band, the force to close the semicircular opening of the semicircular joint when fitted is the force that the connection band tries to close the opening. Become more powerful than. Therefore, while the semicircular joint maintains the original semicircular shape, the front band and the rear band have a substantially parallel angle, that is, a substantially parallel angle, and the near-fitting end of the annular hole is more sure to be directly under the truncated cone of the protruding piece. Can be pressed. For this reason, the projection piece is fitted at a position where it is difficult to be removed from the annular hole, and the fitting portion is more firmly attached to the projection piece. Even when cords having a diameter of several millimeters are bundled and repeatedly attached and detached, the cords are not displaced, and the portion in contact with the semicircular joint is not displaced and deformed.
On the other hand, if the semicircular joint is provided with a through hole, the spring property of the semicircular joint can be enhanced while the volume of the semicircular joint is less than the volume of the connecting band.

In the present invention, in particular, if the left and right guide lines, which are the intersecting lines between the slit grooves and the left and right notch surfaces, are formed, the annular hole is guided on the protruding piece along the guide lines. Therefore, the left and right cut-out surfaces of the truncated cone automatically squeeze, and the protruding piece is guided and easily inserted into the far fitting end of the annular hole. On the contrary, if the protruding piece is inserted into the annular hole, the protruding piece is pushed substantially horizontally from the close fitting end of the annular hole by the elastic force of the resin, so that the locking surface of the protruding piece is fitted over the entire surface. Mates with the part. For this reason, the protruding piece is not pulled out from the annular hole. This pressing force can be adjusted as appropriate by changing the length of the front band and the rear band, changing the curvature of curvature, or changing the pitch interval of the linear concave and convex grooves according to the size of the protruding piece and the annular hole. Can do.

In the present invention, if the maximum horizontal distance from the intersection of the locking surface of the truncated cone and the cylindrical body to the other end of the locking surface on the opposite side is shorter than the diameter of the annular hole, While pushing the annular hole backward with your left finger so that the far-fitting end and the protruding piece abut, while holding the right insertion surface of the protruding piece with the right hand finger and lifting the fitting part, the elasticity of the resin The locking surface of the truncated cone can be taken out more easily from the annular hole.

BEST MODE FOR CARRYING OUT THE INVENTION

Next, preferred embodiments of the present invention will be described in detail with reference to the drawings. In all the drawings, the same or corresponding parts are denoted by the same reference numerals, and redundant description is omitted.

  1 to 3 are views showing an embodiment of a detachable fastener (1) according to the present invention, FIG. 1 is a perspective view of the detachable fastener (1), and FIG. 3 is an enlarged perspective view, and FIG. 3 is a plan view showing a fitting state in use. A description will be given based on these drawings.

The whole detachable fastener (1) consists of a locking part (2), a connecting band (3) and a fitting part (4).
As for the latching | locking part (2), the protrusion piece (6) is standingly arranged on the brim (5) of thickness 1.2mm. The protruding piece (6) is a cylindrical body (7) having a diameter of 5 mm and a truncated cone having a bottom surface diameter of 5.4 mm and a top surface diameter of 3 mm. It is the shape which cut | disconnected in the front-back direction with the character-shaped slit groove | channel. The truncated truncated cone is composed of a right truncated cone (8) and a left truncated cone (8 '), and the U-shaped slit groove has a right slit surface (9) and a left slit surface (9'). The right truncated cone (8) and the left truncated cone (8 ') are each cut obliquely to the diameter of the cylindrical body in the forward direction. A right guide line (10) and a right notch surface (11) are formed on the cut surface of the right truncated cone (8). A left guide line (10 ′) and a left notch surface (11 ′) are formed on the cut surface of the left truncated cone (8 ′). The cut top surface of the right truncated cone (8) is defined as the right insertion surface (12), and the top surface of the left truncated cone (8 ′) is defined as the left insertion surface (12 ′).

The connecting band (3) having a width of 5.5 mm and a thickness of 0.9 mm has a semi-circular joint (14) in which a front band (13) and a rear band (13 ′) that are appropriately curved are 4.5 mm in outer diameter. ). When the fastener (1) provided with the semicircular joint (14) is disengaged as shown in FIG. 1, the fastener (1) is not shown, but the front band (13) and the rear band as a whole. The band (13 ′) is shaped to form an angle of 90 ° or less. For this reason, linear concave grooves are formed at equal pitches on the back surfaces of the front band (13) and the rear band (13 '), and appropriate curls are formed. The semicircular joint (14) is provided with a 2.2 mm wide through hole and a proximal tongue piece (19) and a distal tongue piece (19 ') extending from the end faces of the front band (13) and the rear band (13'). It has been.

An annular hole (15) having a diameter of 5.2 mm is provided in the stepped fitting portion (4) having a maximum thickness of 1.5 mm. The one closer to the connection band (3) of the annular hole (15) is referred to as a near fitting end (16), and the far end is referred to as a far fitting end (16 ').

Next, the usage method and operation of the present invention will be described.
First, the case where the annular hole (15) is inserted into the protruding piece (6) will be described.
When inserting the annular hole (15), the finger is pressed against the far fitting end (16 ′) side of the annular hole (15). Then, the tip of the fitting portion (4) (tip of the far fitting end (16 ′)) is in a state where the neck is slightly lowered from the substantially parallel angular direction, and the right guide line (10) and the protruding piece (6) and The annular hole (15) is inserted into the protruding piece (6) along the left guide line (10 ′). Further, the annular hole (15) advances along the vicinity of the far fitting end (16 ′) to the end point of the left and right guide lines (10, 10 ′) of the protruding piece (6), and the annular hole (15) is guided. . At the time of this insertion, the maximum length in the front-rear direction of the right locking surface (17) and the left locking surface (17 ′) forming the bottom surface of the truncated cone is equal to or smaller than the diameter of the annular hole (15). Even if the annular hole (15) has a substantially parallel angle or a slightly oblique angle, the annular hole (15) is not caught in the front-rear direction of the protruding piece (6). Even if it is caught, if the tip of the fitting portion (4) is at a substantially parallel angle, the protruding piece (6) can be easily inserted into the annular hole (15).

On the other hand, in the horizontal direction, the right locking line (18) of the right notch surface (11) in which the annular hole (15) of the fitting portion (4) protrudes in the left-right direction of the projecting piece (6) and the left side. It abuts at two portions of the left locking line (18 ′) of the notch surface (11 ′). When the finger is further pressed on the far-fitting end (16 ′) side of the annular hole (15), the right guide line (10) and the left guide line (10 ′) of the protrusion piece (6) become the annular hole (15). Since the process proceeds along the vicinity of the far-fitting end (16 '), a compressive force is applied to the right slit surface (9) and the left slit surface (9') from the left and right, and the interval between both slit surfaces (9, 9 ') It can be narrowed. For this reason, the right locking line (18) and the left locking line (18 ′) that have been in contact with the annular hole (15) at the two positions are squeezed and pushed into the annular hole (15), and the protruding piece (6 ) Is fitted into the annular hole (15) and is fitted. When the protruding piece (6) is fitted into the annular hole (15), the slit groove returns to the original position, and the protruding piece (6) is fitted into the annular hole (15).

FIG. 3 shows a plan view when the protruding piece (6) is fitted into the annular hole (15). The projecting piece (6) receives a pressing force from the close fitting end (16) of the annular hole (15) by the connecting band (3). That is, by utilizing the flexibility of the resin, the rear band (13 ′) becomes like a leaf spring and pushes the head of the cylindrical body (7) forward at a substantially horizontal position, as shown in FIG. The cylindrical body (7) is in contact with the near fitting end (16) of the annular hole (15), unlike the case of insertion. Therefore, the protruding piece (6) has a large area of the right engaging surface (17) of the right truncated cone (8) and the left engaging surface (17 ') of the left truncated cone (8'). As a result, the projection piece (6) cannot be easily detached from the annular hole (15). Further, when the semicircular joint (14) has the proximal tongue piece (19) and the distal tongue piece (19 '), the semicircular shape can be more securely maintained. Even when a cord with a diameter of 2 to 3 mm is fastened, the cords do not enter the semicircular joint (14), and the front band (13) and the rear band (13 ') that are in contact with the semicircular joint (14) The code itself does not shift.

Finally, the case where the projection piece (6) is removed from the annular hole (15) will be described.
Basically, the reverse operation is performed when the protruding piece (6) is inserted into the annular hole (15). For example, the protruding piece (6) is moved from the near fitting end (16) of the annular hole (15) to the far fitting end (16 ′) by the finger of the left hand. If it does so, the latching state of the front-back direction of a protrusion piece (6) will disappear. If the slit groove is narrowed with the finger of the right hand while maintaining this state, even if the fitting part (4) is in a state where the neck is slightly raised from the horizontal direction, the protruding piece (6) can be easily looped without pulling forcibly. It can be removed from the hole (15). Further, as described above, the distance from the one end of the cylindrical body (7) of the protrusion piece (6) to the maximum horizontal length of the locking surface on the other end side is shorter than the diameter of the annular hole (15). Then, the projection piece (6) can be easily taken out by simply lifting the fitting portion (4) while holding the right insertion surface (12) of the projection piece (6) with the finger of the right hand. Similarly to the insertion, if the front-rear direction is a direction to press the far fitting end (16 ′) side of the annular hole (15) with a finger, the protruding piece (6) can be easily taken out from the annular hole (15). be able to.

As mentioned above, although one suitable embodiment of the present invention was described in detail, it cannot be overemphasized that the present invention is not limited to the above-mentioned embodiment.

The detachable fastener according to the present invention has the following effects.
At the time of attachment / detachment, since the engaging portion and the fitting portion are in contact with only the two left and right engaging surfaces in the horizontal direction, they can be easily attached / detached by narrowing the slit groove. If a guide line is provided at this time, the slit groove can be automatically shrunk as the annular hole advances along the guide line during insertion. Moreover, since the latching | locking part and the fitting part are contact | abutting in the wide range at the time of a fitting or fitting, it does not remove | deviate easily, and even thick papers can be firmly fastened. In addition, since all of the parts are made of plastic resin such as vinyl chloride, it is possible to provide a detachable fastener that is inexpensive and environmentally friendly. Moreover, since the shape of the original fastener can be maintained over a long period of time by providing a semicircular joint, it can withstand repeated use many times. Moreover, since the shape of the semicircular joint is further stabilized by providing the tongue piece on the semicircular joint, the effect of maintaining the original shape of the fastener can be increased.

It is a perspective view of the detachable fastener which concerns on this invention. It is the figure which expanded the latching | locking part of the detachable fastener which concerns on this invention. It is a top view which shows the fitting state at the time of use of the detachable fastener which concerns on this invention.

DESCRIPTION OF SYMBOLS 1 ... Removable fastener 2 ... Locking part 3 ... Connection band 4 ... Insertion part 6 ... Projection piece 9, 9 '... Slit surface 10, 10' ...・ Guide line 15 ... annular hole 16 ... near fitting end 16 '...

Claims (7)

A locking part (2) having a projecting piece (6) standing on a collar (5) and a fitting part (4) having an annular hole (15) are provided with a leading band (13) and a rear band ( 13 ′), which is connected by a connecting band (3), and the protruding piece (6) is a resin fastener having a cylindrical body (7) with a truncated cone mounted thereon. The protruding piece (6) is connected to the connecting piece (3). A slit groove is formed in the front-rear direction of the band (3), and the truncated cone has left and right cut surfaces (11, 11 ') formed in the front direction of the connection band (3). The maximum length in the front-rear direction of the left and right locking surfaces (17, 17 ′) of the truncated cone (8, 8 ′) is not longer than the diameter of the annular hole (15), and the left and right truncated cones (8, The maximum horizontal length of both the left and right sides of the left and right engaging surfaces (17, 17 ') of 8') depends on the diameter of the annular hole (15). A removable fastener (1) characterized in that the length obtained by removing the slit groove width from the maximum horizontal length is shorter than the diameter of the annular hole (15). ). A locking part (2) having a projecting piece (6) standing on a collar (5) and a fitting part (4) having an annular hole (15) are provided with a leading band (13) and a rear band ( 13 ′), which is connected by a connecting band (3), and the protruding piece (6) is a resin fastener having a cylindrical body (7) with a truncated cone mounted thereon. The protruding piece (6) is connected to the connecting piece (3). A slit groove is formed in the front-rear direction of the band (3), and the truncated cone has left and right cut surfaces (11, 11 ') formed in the front direction of the connection band (3). The maximum length in the front-rear direction of the left and right engaging surfaces (17, 17 ') of the truncated cone (8, 8') is not longer than the diameter of the annular hole (15), and the left and right truncated cones (8, 8 ') ) Of the left and right engaging surfaces (17, 17 ') is longer than the diameter of the annular hole (15). And the length obtained by removing the slit groove width from the maximum horizontal length is shorter than the diameter of the annular hole (15), and the front band (13) and the rear band ( A detachable fastener (1) characterized in that 13 ') is connected by a semicircular joint (14).  The detachable fastener (1) according to claim 1 or 2, characterized in that the left and right cut-out surfaces (11, 11 ') are plane symmetrical.     The detachable fastener (1) according to claim 1 or 2, wherein the slit groove is a U-shaped slit groove.     The thickness of the collar (5) of the said latching | locking part (2) and the thickness of the fitting part (4) are thicker than the thickness of a connection band (3), The Claim 1 or Claim 2 characterized by the above-mentioned. Removable fastener (1). The detachable fastener according to claim 1 or 2, characterized in that the connecting band (3) is provided with a linear uneven groove on a surface opposite to the side having the protruding piece (6). Ingredient (1). The semicircular joint (14) is provided with a proximal tongue piece (19) and a distal tongue piece (19 ') extending from end faces of the front band (13) and the rear band (13'), respectively. A detachable fastener (1) according to claim 2.

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