JP4579708B2 - Fastener - Google Patents

Description

  The present invention relates to a so-called vinyl house in which a plurality of aggregates are covered with a sheet made of a synthetic resin, and a fastener that holds the end of a belt-like member stretched on the sheet so as to press the sheet against the aggregate. About.

  In a so-called vinyl house in which sheets made of synthetic resin are spread on a plurality of aggregates, a plurality of house bands that press the sheets against the aggregate are arranged at appropriate intervals in the longitudinal direction of the vinyl house, Each house band is stretched over the sheet from one side of the vinyl house to the other side, thereby suppressing the sheet from being blown by wind as much as possible. In such a vinyl house, a sheet made of vinyl chloride is used. In this case, the both ends of the rubber band-like house band are respectively connected to cross members disposed at the lower portions on both sides of the vinyl house, thereby It was stretched.

  Further, there are cases where both ends of a band-shaped house band having a relatively narrow width are sandwiched and fixed by the base end portions of the tip hook-shaped band fasteners that are externally fitted to the both lateral members (for example, Patent Document 1). reference.).

  By the way, it replaces with the sheet | seat made from a vinyl chloride mentioned above, and the polyolefin-type sheet | seat for agriculture may be used. This is because the latter sheet is higher in transparency and has a longer life than the former sheet, and further, the latter sheet does not generate harmful gas even if it is burned, so that it can be incinerated. Because. However, when an agricultural polyolefin-based sheet is used, there is a problem that the sheet is less likely to be damaged by rubbing because the sheet has low friction resistance. Therefore, in order to prevent rubbing between the stretched sheet and the house band as much as possible, the sheet is made of the same material, and a relatively wide band-shaped house band is used. In order to fasten the end of such a house band, the following fastener has been developed (for example, see Patent Document 2).

  FIG. 9 is a front view of a conventional fastener, and FIG. 10 is a side sectional view showing how the fastener shown in FIG. 9 is used. As shown in FIG. 9 and FIG. 10, the fastener 80 is formed by band winding portions 86, 87 at the center step portions of the two-step ladder-shaped main body 81, and between the band winding portions 86, 87. A rod-shaped band insertion part 88 having a dimension slightly longer than the inner dimension between both side column parts 82 and 82 of the main body 81 is arranged in parallel with both band winding parts 86 and 87. This band insertion part 88 is cantilevered by a support part protruding from the front side of one side column part 82 of the main body 81 and between the two band winding parts 86, 87. The band V is inserted between the band insertion part 88 and the two band winding parts 86 and 87 from the open end of the insertion part 88.

  Further, fitting concave portions 82a, 82a, 82a (82a) into which stopper rods 83 to be described later are fitted are provided on the front and back surfaces in the vicinity of one end of both side column portions 86, 87 described above, respectively, and one side column portion. A flexible band plate-like hinge portion 84 extends from the outer surface in the vicinity of one end of 82. The stopper collar 83 has a width dimension that fits in the fitting recesses 82a and 82a, and is provided at both ends of the collar section having a length slightly longer than the outer dimension between both side pillar sections 82 and 82. Locking portions 83a, 83a that lock to the side surfaces of the column portions 82, 82 are provided so as to project, and the tip of the hinge portion 84 is connected to the approximate center of one locking portion 83a.

  With such a fastener 80, as shown in FIG. 10, in order to fasten the end of the band V that has one end wound around the horizontal pipe arranged on the lower edge of the house, from the fitting recess 82 a (82 a) In a state where the stopper rod 83 is removed in advance and the doubled portion of the band V is inserted between the band insertion portion 88 and the two band winding portions 86 and 87 from the open end of the band insertion portion 88, The band insertion portion 88 and the band winding portions 86 and 87 are rotated by using the band insertion portion 88 and the band winding portions 86 and 87 as rotation axes, and the both side pillar portions 82 and 82 are rotated by, for example, right rotation indicated by arrows. A band V is wound around and the band V is extended.

Then, the stopper rod 83 is detachably fitted in the fitting recess 82a (82a) on the opposite side to the rotation direction of the both side column portions 82, 82, and the locking portions 83a, 83a of the stopper rod 83 are arranged on both side columns. The band V is brought into contact with the stopper rod 83 from the outside of the stopper rod 83 by being engaged with the outer surfaces of the portions 82 and 82. As a result, the band V can be prevented from rewinding, and the stopper rod 83 can be pressed into the fitting recess 82a (82a) by the tension of the band V, so that the end of the band V can be fastened.
JP-A-10-229762 JP 2000-297803 A

  However, in such a conventional fastener, since the stopper rod 83 is only fitted in the fitting concave portions 82a (82a) of the both side column portions 82, 82, the house sheet is rolled by a strong wind. When the band V is bent, the stopper rod 83 is detached from the fitting recess 82a (82a), and the band V is rewound.

  Moreover, in the house using the polyolefin-type sheet | seat for agriculture, in order to further suppress that a rubbing arises between the extended sheet | seat and a band, it is requested | required to apply the band V wider than 60 mm. . In this case, in the above-described conventional fastener, the dimension of the stopper rod 83 is lengthened according to the width of the band V. However, when the stopper rod 83 is lengthened, both ends of the stopper rod 83 are fitted to the corresponding fitting recesses. There is also a problem that the work of fitting the part 82a (82a) requires labor.

  In addition, when the stopper V 83 is opened and closed when the band V is used repeatedly and when the band V is retightened, the band plate-like hinge portion 84 is bent and extended, so that the strength of the hinge portion 84 is reduced, and the fastener There was also a problem that the lifespan was short.

  The present invention has been made in view of such circumstances, and even when applied to a wider band, the end of the band can be securely fastened with a single touch, and is reliable even under strong winds. Providing a highly durable fastener with a long life.

According to the first aspect of the present invention, an insertion portion for inserting a belt body and a winding portion for winding the belt body are provided on one end side of both side pillar portions arranged in parallel with each other at an appropriate distance. There is an unwinding prevention portion that prevents the belt wound around the winding portion from being unwound on the other end side of both side column portions so as to be openable and closable. In the fastener that fastens the end of the band by winding the end of the band and / or the vicinity thereof in the turning part and closing the unwinding prevention part, the other side column part One end of the hook-shaped unwinding prevention portion is pivotally supported around an axis in a direction intersecting the longitudinal direction of the side column portion on the hinge portion provided at the end, and the other end of the other side column portion the, by fitting the other end portion of the front Kimakimodo prevention unit Ri Ah provided fitting portion for locking the locking portion, the fitting portion, the required distance to the other end of the other side bar portion The extension of each side wall that is erected is provided with an extension that extends to the inside of each side wall, and each of the extensions has a protrusion that goes to the bottom of the fitting. The other end portion of the unwinding prevention portion has a width that can pass between the two extension portions, and the other end portion is provided with an engaging portion that engages with the convex portion. It is characterized by.

In this invention of Claim 1, the insertion part which inserts a strip | belt body, and the winding part which winds the said strip | belt body are provided in the one end side of the both-sides pillar part distribute | arranged in parallel mutually with a suitable distance. There is an unwinding prevention portion that prevents the belt wound around the winding portion from being unwound on the other end side of both side column portions so as to be openable and closable. In the fastener that fastens the end of the band by winding the end of the band and / or the vicinity thereof in the turning part and closing the unwinding prevention part, the other side column part One end of the hook-shaped unwinding prevention portion is pivotally supported around an axis in a direction intersecting the longitudinal direction of the side column portion on the hinge portion provided at the end, and the other end of the other side column portion the front is fitted to the other end of the Kimakimodo prevention portion Ri Ah provided fitting portion to lock the lock portion, the insertion portion is required distance to the other end of the other side bar portion Extending parts are provided at the front end of both side walls that are erected apart from each other, and projecting parts toward the bottom of the fitting part are provided on both extending parts. The other end portion of the unwinding preventing portion has a width that can pass between the two extending portions, and an engaging portion that engages with the convex portion is provided at the other end portion . Therefore, even when the house sheet is rolled by strong wind and the belt body is bent, the unwinding prevention portion inserted and locked in the insertion portion of the lock portion is prevented from coming off from the lock portion. The

  Moreover, even when the dimension between both side pillar parts and the dimension of the unwinding prevention part are lengthened so as to be applied to a belt having a wider width, one end of the unwinding is pivotally supported by the hinge part. By rotating the preventing portion, the other end portion of the unwinding preventing portion is surely fitted into the fitting portion of the locking portion, so that the unwinding preventing portion can be reliably locked with one touch. Furthermore, since one end of the unwinding prevention portion is pivotally supported by the hinge portion, even if the unwinding prevention portion is repeatedly opened and closed, the strength of the hinge portion is prevented from being lowered. Long life.

In addition, the other end portion of the unwinding preventing portion fitted inside the fitting portion is easily locked by engaging the engaging portion provided on the other end portion with any convex portion of the fitting portion. be able to. Moreover, since the other end portion of the unwinding prevention portion can be locked by engaging the engaging portion of the other end portion of the unwinding prevention portion with any convex portion of the insertion portion in this way, Regardless of the winding direction of the winding portion, the other end of the unwinding prevention portion can be locked.

  The fastener according to the present invention is provided with an insertion part for inserting a band and a winding part for winding the band on one end side of both side pillars arranged in parallel with each other at an appropriate distance. The unwinding prevention part for preventing the unwinding of the belt body wound around the winding part is provided at the other end side of the both side pillar parts so as to be openable and closable. The end portion of the band body is fastened by winding the end portion of the band body and / or the vicinity thereof to make the unwinding prevention portion closed. One end of the hook-shaped unwinding prevention portion is pivotally supported around a shaft in a direction intersecting with the longitudinal direction of the side column portion on a hinge portion provided at the other end of the one side column portion. On the other end of the other side column portion, there is provided a lock portion for fitting and locking the other end portion of the unwinding preventing portion in an insertion portion provided with an opening in a part of the annular body.

  In addition, the insertion portion is provided with an extension portion extending to the inside of the both side wall portions at the tip end portions of the both side wall portions standing at the other end of the other side column portion at a required distance, The extending portion is provided with a convex portion toward the bottom portion of the fitting portion, and the other end portion of the unwinding preventing portion has a width dimension capable of passing between both extending portions. Is provided with an engaging portion to be engaged with the convex portion.

  Embodiments of the present invention will be described below in detail with reference to the drawings.

  1 and 2 are perspective views of a fastener according to the present invention. FIG. 1 shows a state in which an unwinding prevention pin 5 described later is open, and FIG. 2 shows a state in which the unwinding prevention pin 5 is closed. Is shown. As shown in FIGS. 1 and 2, the metal fastener has two side pillar portions 2, 2 arranged in parallel with a distance corresponding to the width dimension of a band (band body) to which the fastener is attached. Between the vicinity of one end of the belt, the winding rods 6 and 7 for winding the band are installed in the longitudinal direction of the side pillars 2 and 2 with a distance slightly longer than the thickness of the double band. As a result, a substantially central position between the winding rods 6 and 7 of one side column portion 2 is cut out to form a side column piece portion 21 that faces the tip of the other side column portion 2. An opening 9 for entering and exiting the band is formed.

  The portion of the other side column portion 2 that faces the opening 9 is bent in an arc shape that protrudes outward from the both side column portions 2, 2, and the bent portion 2 b and the two winding rod portions 6, 6 are formed. A region surrounded by 7 is an insertion portion 8 through which a band is inserted from the opening 9. One end of one side column portion 2 and one end portion of the side column piece portion 21 protrude into the opening 9 of the insertion portion 8 to prevent the band inserted into the insertion portion 8 from protruding outward from the opening 9. The protrusion preventing protrusions 2a and 21a are provided. The tips of both protrusion prevention convex portions 2a and 21a are curved, and this causes wrinkles on the surface of the band when the band is inserted into the insertion portion 8 and when the band is taken out from the insertion portion 8. It is prevented.

  Further, one end portion of the other side column portion 2 and the other end portion of the side column piece portion 21 are respectively protruded from the outer winding collar portion 7 to be leg portions 22, 22. A band is inserted between them so that the band wound around the winding collars 6 and 7 does not shift in the width direction. The ends of the leg portions 22 and 22 are also curved so that wrinkles are prevented from occurring on the surface of the band even when the ends of both the leg portions 22 and 22 are in contact with the surface of the band.

  A hinge part 3 is provided at the other end of the one side pillar part 2 described above, and the hinge part 3 is in contact with a band extended from one side of the vinyl house to the other side as will be described later. One end of an unwinding prevention pin (unwinding prevention part) 5 for preventing unwinding of the band wound around the flange parts 6 and 7 is pivotally supported by a stop pin (support shaft) 33. Yes. Further, the other side column portion 2 is provided with a lock portion 4 for fitting the other end portion of the unwinding prevention pin 5 and locking the other end portion.

  FIG. 3 is a side view of one side column portion 2 shown in FIG. 2 and explains the structure of the hinge portion 3. FIG. 4 is a side end view of the other side column portion 2 shown in FIG. 2 and explains the structure of the lock portion 4. As shown in FIG. 3 and FIG. 1, the hinge portion 3 has an annular head portion (support piece portion) 31, 31 with the central axes of both head portions 31, 31 aligned, and the depth of one side column portion 2. It is provided with a required dimension in the direction, and is a flat surface perpendicular to the longitudinal direction of the bottom part 32 and the side column part 2 between the head parts 31 and 31 of the hinge part 3.

  On the other hand, one end of the unwinding prevention pin 5 is provided with an annular base 51 having a slightly smaller outer dimension than the head part 31 of the hinge part 3 and a thickness slightly smaller than the dimension between the head parts 31 and 31. The bottom 51a of the annular base 51 constituting the bottom of the unwinding prevention pin 5 is a flat surface. Then, the annular base 51 is fitted between the head portions 31, 31 of the hinge portion 3, and the stop pin 33 is passed through the head portions 31, 31 and the annular base 51, thereby rotating the unwinding prevention pin 5. It is pivotally supported. At this time, as described above, the thickness dimension of the annular base portion 51 is slightly narrower than the dimension between the head portions 31 and 31, so that the gap between the both side surfaces of the annular base portion 51 and the head portions 31 and 31 is small. A slight amount of play occurs, whereby the other end of the unwinding prevention pin 5 can swing in a direction perpendicular to the longitudinal direction of the unwinding prevention pin 5.

  Therefore, when the unwinding prevention pin 5 is in a closed state, the bottom 51a of the annular base 51 of the unwinding prevention pin 5 comes into contact with the bottom 32 of the hinge portion 3, and the unwinding prevention pin 5 is connected to the side column portions 2 and 2. The rotation of the unwinding prevention pin 5 is stopped in a posture substantially orthogonal to the longitudinal direction of the wire, and the unwinding prevention pin 5 is supported on the bottom portion 32 of the hinge portion 3 in this posture.

  As shown in FIGS. 4 and 2, the lock portion 4 includes flat plate-like side wall portions 41, 41 which are provided in the depth direction of one side column portion 2 with a required dimension therebetween. Side surfaces on which the other end portions of the unwinding prevention pins 5 are fitted by projecting the extending portions 42 and 42 formed in an arch shape from the front end portions of the 41 and 41 toward the inside between the side wall portions 41 and 41. The insertion is made into a substantially rectangular C-shaped insertion portion 44. And the engagement convex parts 43 and 43 which go to the bottom part of the insertion part 44 are provided in the front-end | tip of both the extension parts 42 and 42, respectively.

  On the other hand, at the other end of the unwinding prevention pin 5, the width dimension is made narrower than the width dimension of the other part so that it can pass between the extension parts 42, 42, and the lock part 4 A locking portion 52 for fitting and locking is formed.

  FIG. 4 is an enlarged side view showing a state in which the locking portion 52 of the unwinding prevention pin 5 is locked to the lock portion 4 shown in FIG. As shown in FIG. 4, the locking portion 52 includes a base portion 55 that is vertically long when viewed from the side, and the width dimension of the base portion 55 is slightly narrower than the dimension between the extending portions 42 and 42 of the lock portion 4. It is. The base 55 passes between the extending portions 42 and 42 and is fitted into the fitting portion 44, and is formed on both side edges of the surface of the base 55 that is fitted into the fitting portion 44 and faces the extending portions 42 and 42. The wall portions 53 and 53 having appropriate lengths are provided upright so that the inside of the wall portions 53 and 53 is engaged with the engagement convex portion 43. The unwinding prevention pin 5 is slightly flexible in the depth direction and the width direction of the fitting portion 44, and until the locking portion 52 is inserted between the extending portions 42, 42 of the lock portion 4. By bending the rotated unwinding prevention pin 5 in the depth direction and the width direction of the insertion portion 44, the engagement concave portion 54 of the locking portion 52 is changed to one of the engagement convex portions 43, 43 of the lock portion 4. By engaging with one side, the unwinding prevention pin 5 is locked to the lock part 4 with one touch.

  Next, a method for fastening the end of the band using such a fastener will be described.

  FIG. 5 is a perspective view showing how the fastener shown in FIG. 1 is used, where H is a house. The house H is formed by covering a plurality of arch-shaped bone pipes BP, BP,... Standing in parallel with each other at an appropriate distance with an agricultural polyolefin-based sheet S. The sheet S is composed of bone pipes BP, BP. ,... Are partly locked and fixed to a sheet fixing strip (not shown) laid between them. Further, one or a plurality of horizontal pipes SP (SP) are connected and fixed to the bone pipes BP, BP,...

  On the bone pipes BP, BP,... At one or a plurality of intervals, strip-shaped bands (band bodies) V, V,. Each band V, V,... Is overlapped with a portion in the vicinity of the end of each band V, V,. The portions are wound around the fasteners 1, 1,..., And the bands V, V,... Are extended, and the ends of the bands V, V,. .

  As described above, when the bands V, V,... Are arranged on the bone pipes BP, BP,..., The portions between the adjacent bone pipes BP, BP,. However, for example, by disposing a convex member at an appropriate position of the bone pipes BP, BP,..., It is possible to easily wind and rewind the portion of the sheet S below the convex member. .

  On the other hand, as shown in FIG. 8, a band V, V,... Having a width of about 60 mm is arranged between the bone pipes BP, BP,. The overlapping portions near the ends of V, V, ... are wound around the fasteners 1, 1, ..., respectively, and the bands V, V, ... are extended, and the ends of the bands V, V, ... Can be fastened by fasteners 1, 1,. In this way, by using the wide band V, it is possible to prevent the surface of the sheet S from being wrinkled by rubbing between the band V and the sheet S as much as possible even for the agricultural polyolefin sheet S. it can.

  6 is a partially enlarged perspective view of the house H shown in FIG. 5, and FIG. 7 is a partially enlarged side view of the fastener 1, the sheet S, and the bone pipe BP shown in FIG. In both figures, the same reference numerals are given to the portions corresponding to the portions shown in FIG.

  As shown in FIGS. 6 and 7, with the unwinding prevention pin 5 opened, the doubled portion of the band V is inserted into the insertion portion 8 from the opening 9 of the fastener 1, and in this state, By rotating both side pillars 2 and 2 in an appropriate direction with both winding rods 6 and 7 as rotation axes, the band V is wound around both winding rods 6 and 7, Develop V.

  And if the engagement recessed part 54 provided in the latching | locking part 52 of the unwinding prevention pin 5 is the left direction engagement convex part 43 if it is left rotation in the rotation direction side of the both-side column parts 2 and 2, ie, side view. The band V is brought into contact with the unwinding prevention pin 5 from the outside of the unwinding prevention pin 5. This prevents the band V from rewinding.

  In this way, the engaging portion 52 of the unwinding prevention pin 5 is fitted into the fitting portion 44 constituting the lock portion 4, and the engaging recess 54 provided in the locking portion 52 is provided in the lock portion 4. Since the unwinding prevention pin 5 is locked by engaging with the convex portion 43, even if the band S is bent by the strong wind, the band V is bent. It is possible to prevent the locking portion 52 of the unwinding prevention pin 5 fitted and locked in the fitting portion 44 of the portion 4 from coming off from the lock portion 4.

  Moreover, even if it is a case where the dimension between both side pillar parts 2 and 2 and the dimension of the unwinding prevention part 5 are lengthened so that it may apply to the band V of wider width, the unwinding prevention pin 5 is rotated. Thus, the engaging portion 52 of the unwinding prevention pin 5 is surely fitted into the fitting portion 44 of the lock portion 4, so that the unwinding prevention pin 5 can be reliably locked with one touch. Further, since one end of the unwinding prevention pin 5 is pivotally supported by the hinge part 3, even if the unwinding prevention pin 5 is repeatedly opened and closed, the strength of the hinge part 3 is prevented from being lowered. The life of the fastener 1 is long.

  By the way, the lock of the unwinding prevention pin 5 by the lock portion 4 is performed by engaging the engagement concave portion 54 provided in the engaging portion 52 with any of the engagement convex portions 43 and 43 provided in the insertion portion 44. It can be done easily. Further, the other end portion of the unwinding prevention pin 5 can be locked by engaging the engaging portion 52 of the unwinding prevention pin 5 with any of the engaging convex portions 43 and 43 of the fitting portion 44 in this way. Therefore, the other end portion of the unwinding prevention pin 5 can be locked regardless of the winding direction of the band V around the winding collar portions 6 and 7.

  Furthermore, the bottom portion 32 between the head portions 31 and 31 of the hinge portion 3 is a flat surface, and the bottom portion 51a of the annular base portion 51 of the unwinding prevention pin 5 is also a flat surface, and the unwinding prevention pin 5 is rotated. In this case, the bottom 51a of the annular base 51 is in contact with the bottom 32 of the hinge part 3 so as to support the unwinding prevention pin 5 in a closed position. The rotation can be stopped in a required closed posture.

It is a perspective view of the fastener based on this invention. It is a perspective view of the fastener based on this invention. It is a side view of one side pillar part shown in FIG. It is an enlarged side view which shows the state which the latching | locking part of the unwinding prevention pin latches to the lock part shown in FIG. It is a perspective view which shows the usage condition of the fastener shown in FIG. FIG. 6 is a partially enlarged perspective view of the house shown in FIG. 5. FIG. 7 is a partially enlarged side view of the fastener, sheet, and bone pipe shown in FIG. 6. It is a perspective view which shows the other usage condition of the fastener shown in FIG. It is a front view of the conventional fastener. It is a sectional side view which shows the usage condition of the fastener shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fastener 2 Side pillar part 2a Protrusion prevention convex part 3 Hinge part 4 Lock part 5 Unwind prevention pin 6 Winding hook part 7 Winding hook part 8 Insertion part 9 Opening 31 Head part 32 Bottom part 33 Stopping pin 41 Side wall part 42 Extension part 43 Engagement convex part 44 Insertion part 51 Annular base part 51a Bottom part 52 Locking part 53 Wall part 54 Engagement concave part 55 Base part H House BP Bone pipe SP Horizontal pipe S Seat V Belt

Claims (1)

An insertion part for inserting the belt body and a winding part for winding the belt body are provided on one end side of both side pillar parts arranged in parallel with each other at an appropriate distance, and the other end side of the both side pillar parts. An unwinding prevention part for preventing unwinding of the band wound around the winding part is provided so as to be openable and closable. When the unwinding prevention part is in an open state, an end of the band and In the fastener that fastens the end of the band by winding the vicinity thereof and / or making the unwinding prevention part closed.
One end of a hook-shaped unwinding prevention portion is pivotally supported around an axis in a direction intersecting with the longitudinal direction of the side column portion on a hinge portion provided on the other end of one side column portion, the other end side pillar portion of Ri Oh provided fitting portion is fitted to the other end portion of the front Kimakimodo prevention portion to lock the lock portion,
The fitting portion is provided with an extension portion extending to the inside of the both side wall portions at the tip end portions of the both side wall portions standing at a predetermined distance on the other end of the other side column portion. Each of the protruding parts is provided with a convex part toward the bottom of the fitting part,
The other end portion of the unwinding prevention portion has a width that can pass between both extension portions, and an engagement portion that engages with the convex portion is provided at the other end portion. Characteristic fastener.

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