JPH10131919A - Band fastening fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a band fastening fixture which can maintain holding force more surely of a band fastened, for instance, even in the case of a little elastically loosening the band, can hold a holding condition, in addition to excellence in a simple constitution and mounting operability. SOLUTION: In a resin-made band fastening fixture formed with a total unit in almost U shape to be provided with fastening piece parts 23a, 23b regulating from both sides a bar unit 3 inserted in the inside by forming U-shaped both side parts, and through holes 24, 25 provided in a tip end side of each fastening piece part 23a, 23b to insert a band 5, in both the fastening piece parts 23a, 23b, mutual tip end sides are formed capable of approaching, a position of each through hole 24, 25 is provided to be displaced in a direction extending the band 5 in an adjacent condition, also of the fastening piece parts, a lock pawl part 30, protrusively provided with one fastening piece part 23a outside a hole upper edge of this through hole 24, is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a state in which one end of a fixing band used for holding a sheet material covering a greenhouse or a truck bed is tensioned to a rod body such as a pipe. The present invention relates to a band tightening device for holding down a band.

[0002]

2. Description of the Related Art As shown in the overall view of FIG. 7 to which the present invention is applied, for example, when a simple plastic greenhouse 1 is constructed, a skeleton is formed by pipes 2 and 3, and It is used when the upper part is covered with a vinyl sheet 4 and the vinyl sheet 4 is tightened by using a band-shaped band 5 while tightening the pipes 3 at both ends.
That is, the plastic greenhouse 1 shown in FIG. 7 is constructed by arranging a plurality of arched pipes 2 in parallel on the ground and connecting them with linear pipes 3 fixed on the ground on both sides. After that, the vinyl sheet 4 is put over the pipe 2 to keep the shape, and the band 5 is laid over the vinyl sheet 4 in a state substantially parallel to the pipe 2.
The band 5 is fixed to the pipe 3 while pulling one end of the band 5 to hold down the vinyl sheet 4.

Although FIG. 1 schematically shows the structure, for example, as a countermeasure against strong wind, when the total length of the house is about 100 m, bands 5 may be attached at intervals of 10 to 15 cm. Therefore, the band fastener used is
It is preferable that the band 5 can be securely fixed to the pipe 3 while being stretched while the length of the band 5 is being adjusted. In addition, it is preferable that the band 5 can be easily attached and detached because many are used at the same time.

FIG. 13 shows a conventional example of a band tightening device. FIG. 13 (a) shows a use state corresponding to an enlarged portion of FIG. 7, and FIG. 13 (b) shows a state taken along line CC of FIG. It is an expanded sectional view along. The band tightening tool 6 is made of resin, and has a pair of rectangular frames 10a and 10b, a bendable connecting band 11 connecting both the rectangular frames 10a and 10b, and the rectangular frame 1 when used.
Support rod 12 arranged so as to traverse left and right inside Ob
And

[0005] For example, the other end of the band 5 is fixed to the pipe 3 on one side at the other end of the greenhouse 1 by an appropriate means. Next, one end of the band 5 is extended to one end through the top of the greenhouse 1, and the one end of the band 5 is hung on a band fastener 6 attached to the pipe 3. In this case, the attachment of the band tightening tool 6 to the pipe 3 is performed by winding the connecting band 11 between both the frame bodies 10a and 10b around the pipe 3 and folding the connecting band. Next, one end 5a of the band 5 is inserted into the frame from one side of the rectangular frames 10a, 10b toward the other side, and at the other end, the one end 5a is bypassed by the support rod 12, and again. When the band 5 is inserted into the gap 13 and one end 5a of the band 5 is strongly pulled, the length of the band 5 is adjusted in proportion to the amount of the pull, and the band 5 is held in a tensioned state.
The band tightening device 6 may be used for fixing both ends of the band 5.

[0006]

However, the band fastener 6 having the above-mentioned conventional structure has the following problems.
First, in the mounting operation, the connecting band 11 is wound around the pipe 3, the two frame members 10a, 10b are brought into contact with each other while being deformed into a U-shape, and the support rod 12 is arranged on the square frame members 10a, 10b. And both forms 10
a, 10b and the supporting rod 12 while holding the band 5
Since one end 5a must be incorporated, the operability is poor and the usability is poor. Secondly, the holding force for maintaining the band 5 in a tensioned state mainly includes a force for sandwiching the band portion between the support rod 12 and the upper side of the rectangular frame 10b as shown in FIG. It depends on the force with which the band portion bypassing the outer corner portion of the upper side portion 10a is pressed by the outer band portion. However, if the band 5 is elastically extended to some extent due to long-term use, for example, the pressing force is weakened, the one end 5a is pulled back by the tension of the band 5, and the tensioned state is not maintained.
In this case, the band 5 must be tensioned again by pulling the one end 5a. Third, when removing the used fasteners 6 by dismantling the greenhouse,
For example, since the band 5 must be pulled back toward the fastener 6 from the state shown in FIG. 2B to form a bend between the band 5 and the one end 5a, the one end 5a must be returned to the gap 13 side. It takes time and troublesome work to remove the fasteners 6.

[0007] The present invention has been made in view of the above problems. The first object is that, in addition to the simple structure and the excellent operability of the mounting, the holding force of the tensioned band can be more reliably maintained. For example, even when the band is elastically slightly loosened, the holding state is maintained. It is an object of the present invention to provide a band tightening device capable of maintaining the band. A second object is to enable the removal to be performed more quickly. Further, other objects will be sequentially clarified in the contents described below.

[0008]

In order to achieve the above object, according to the present invention, as exemplified in the first embodiment of FIGS. 1 to 7, one end of a band 5 is pressed against a fixed rod 3 in a tensioned state. A pair of clamping pieces 23a and 23b, which form a substantially U-shape, define both sides of the U-shape, and regulate the rod 3 inserted therein from both sides;
In a resin band tightening tool provided with through holes 24 and 25 provided at the distal ends of the a and 23b and through which the band 5 is inserted, both of the tightening pieces 23a and 23b are formed such that the distal ends thereof can approach each other. , The position of each through hole 24, 25,
In the approaching state, the band 5 is provided so as to be shifted in a direction in which the band 5 is extended, and one of the fastening pieces 23a is provided so as to protrude outside the upper edge of the through hole 24. One end 5a of the band 5 having the pawl portion 30
Through the through holes 24 and 25 and the other fastening piece 2
By detouring around the upper side 25a of the hole 3b, and again inserting and pulling through the through hole 24 of one of the fastening pieces 23a, the locking claw 30 is brought into contact with the corresponding part of the band 5 in a state where the band 5 is tightened. It is designed to bite and prevent the band from returning. According to the present invention, the rod 3 is simply attached to the rod 3 by inserting the rod 3 into the U-shape. When the band 5 is to be tensioned, one end 5a is incorporated and the band 5 is pulled. 5 can be reliably prevented from returning to the corresponding portion of the band 5.

The following aspects of the present invention are more preferred.
First, one of the fastening pieces 23a has the locking claw 30 formed in a sawtooth shape, and protrudes from the base side of the locking claw 30 substantially parallel to the locking claw. This is a configuration having a second locking claw portion 31. In this configuration, the band 5 is simultaneously regulated by the locking claw 30 and the second locking claw 31, so that the band 5 can be more reliably prevented from returning.

Second, one of the fastening pieces 23a has an operation piece 28 extending integrally therethrough with a through hole 24 interposed therebetween, and the operation piece 28 is elastically moved toward the other fastening piece 23b. By tilting the locking claw, the state where the locking claw 30 bites the band side can be released. An insertion hole 28a penetrating the operation piece 28 is provided.
It is more preferable that a finger or a dedicated member can be operated by being hooked from a. With this configuration, a large number of band fasteners can be easily and quickly removed from the one end 5a of the band 5 during disassembly or the like.

Third, a rod 3 is attached to the U-shaped folded portion.
And an annular portion 21 having an opening capable of pushing in the fastening portion 23a.
A configuration is provided in which a projection 29 for preventing the rod 3 inserted into the annular portion 21 from being removed is provided on the opposed inner surface of 23b. In this configuration, when the band fastener is attached to the rod 3, the attached state can be reliably maintained, and the band fastener is in an upright state, so that the next operation of assembling the one end 5a of the band 5 can be performed more easily. Can be done quickly.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 to 7 and a second embodiment of FIGS. 8 to 12. In the description of the embodiment, various technically preferable limitations are added because they are preferable examples of the invention. However, the scope of the present invention is not limited to these modes unless otherwise specified in the following description.

(First Embodiment) FIGS. 1 to 7 show a band fastener according to a first embodiment of the present invention. FIG. 1 is an explanatory view of the operation of the band fastener, and FIG. 2 is an external view of the band fastener. 3 is a view of the band tightening tool as viewed from above and below, FIG. 4 is a view as viewed from the front and back, FIG. 5 is a view as viewed from the side, and FIG. 6 is A in FIG.
FIG. 7 is a longitudinal sectional view seen from the direction of the line A, and FIG. 7 is a view for explaining a use state. The band tightening device 20 is a resin molded body, and is provided at a substantially U-shaped folded portion and has an annular portion 21 having an opening through which the pipe 3 can be inserted, and a fastening piece forming both ends of the U shape. Parts 23a and 23b and band through holes 2 provided in each of the fastening pieces 23a and 23b.
4, 25, and an operation piece 28 extending from the end of the fastening piece 23a.

The annular portion 21 is formed so as to be substantially equal to or slightly smaller than the outer shape of the pipe 3, and is designed so that at least half the circumference of the pipe 3 is wound with the pipe 3 inserted therein. I have. Further, on the outer peripheral surface side of the annular portion 21, a reinforcing rib 22 is integrally formed over a substantially entire width at a middle portion between the left and right sides. The reinforcing ribs 22 increase the rigidity of the annular portion 21 and suppress the shape of the annular portion 21 from spontaneously opening outward with a set, etc., and maintain the initial state, that is, the shape or state immediately after manufacturing.

The fastening pieces 23a and 23b are
It extends continuously in the same direction from both open end portions. On each inner surface of the fastening pieces 23a and 23b,
At the portion near the annular portion 21 side, a protrusion 29 for retaining is provided to face. In addition, each fastening piece 23a,
23b, the fastening piece 23a is the fastening piece 2
3b, and has an operation piece portion 28 with an insertion hole 28a formed at the front end thereof and extending in the same direction. Through holes 24 for passing the band 5 in the front-rear direction (the direction in which the fastening pieces 23a and 23b face each other) are formed at the distal ends of the fastening pieces 23a and 23b.
25 is formed to be substantially the same width as the belt 5 or slightly wider. In this case, since the fastening piece 23a is formed slightly longer than the fastening piece 23b, the through holes 24 and 25 formed at the distal end portions of the fastening pieces 23a and 23b are also in the vertical direction. Thus, the lengths of the fastening pieces 23a and 23b are shifted by an amount corresponding to the shift. That is, the through hole 24 is located slightly above the through hole 25.

Further, the front end portions of the fastening pieces 23a and 23b forming the through holes 24 and 25 are formed to be thicker than the other parts, and each of the fastening pieces 23
Guide walls 26 for guiding the band 5 from both sides are formed on both left and right sides of the outer surfaces of the a and b. On the inner surfaces of the fastening pieces 23a and 23b, planar protrusions 27a and 27b slightly bulging inward are formed on the upper edges of the through holes 24 and 25, respectively. The protruding portion 27b forms a part of the hole upper side portion 25a of the through hole 25. Since the through-hole 24 is located slightly above the through-hole 25 as described above, when the distal ends of the two fastening pieces 23a and 23b are close to each other, it is clear from the enlarged view of FIG. As described above, the raised portion 27b contacts the lower side of the raised portion 27a, that is, the inner surface of the fastening piece 23a, and forms a gap between the end surface of the raised portion 27a and the raised portion 27b according to the thickness of the band 5, In addition, the band 5 that passes through the gap can be sandwiched.

In addition, a locking claw portion 30 is provided between the two guide walls 26 of the fastening piece portion 23a and includes an outer portion including the upper edge of the through hole 24. A second locking claw portion 31 protrudes from the base side of 30. The locking claw portion 30 is formed in a saw blade shape having a plurality of continuous claws. On the other hand, the second locking claw 3
1 is that the tip has a slight gap with the locking claw portion 30,
In addition, it is provided substantially parallel to the locking claw portion 30 and has a substantially triangular cross section and a continuous thin protruding plate shape.

Next, the procedure for tightening the band 5 against the greenhouse 1 using the above-described band tightening tool 20 will be outlined together with the operation. In the case where the band tightening device 20 of the present invention is used, the descriptions in the paragraphs 0002 and 0003 apply as they are. The mounting procedure is such that, for example, the other end of the band 5 is fixed to the other end side of the greenhouse 1 by appropriate means (this band tightening tool 20 may be used). Next, one end 5a of the band 5 is
, And is extended to one end side. At this one end side, the bar 3 is operated to be hooked via the band fastener 20.

First, the band fastener 20 is attached to the pipe 3. In this case, the fastening pieces 23a, 23b
When the pipe 3 is inserted or pushed into the annular portion 21 from between the above, the band fastener 20 is temporarily attached. If the inner diameter of the annular portion 21 is substantially equal to or slightly smaller than the outer shape of the pipe 3, the band fastener 20 is elastically engaged with the pipe 3 and the fastening pieces 23a, 23b are formed. Keep upright. Therefore, in this holding state, the next operation of incorporating the one end 5a of the band 5 and tightening it can be performed satisfactorily (for example, even with one-handed operation). Also, due to the presence of the reinforcing rib 22, the fastening pieces 23a and 23b
Since the opening movement is restricted by using the fulcrum as a fulcrum, there is no risk of accidental falling down, and even if the pipe 3 is disposed at a higher position from the ground, there is a possibility that the pipe 3 may fall out of the pipe 3 due to the presence of the projection 29. Absent.

Next, an operation of incorporating the one end 5a of the band 5 and tightening it is performed. In this case, after passing one end 5a of the band 5 through the through hole 24 of the fastening piece 23a,
It passes through the through hole 25 of the fastening piece 23b, and further bypasses the tip side of the hole upper side 25a forming the through hole 25, and inserts it into the through hole 25 of the fastening piece 23a. In addition, since the band 5 has not been stretched yet, the insertion operation of each of these fastening operations maintains the initial interval between the fastening pieces 23a and 23b, and the operator can perform the operation with one hand. Then, from this state, one end 5a of the band 5 is strongly pulled. Then, the length of the band 5 is adjusted in proportion to the amount of the pull, and the band 5 is strongly stretched. FIG. 1A and FIG. 8A show a state in which the band 5 is stretched in this manner. Of course, this operation can also be performed with one hand.

In this structure, the through holes 24, 2
Since the position of the band 5 is shifted in the direction in which the band 5 is extended, the one end 5a passing through the through holes 24, 25 is fastened around the hole upper side 25a forming the through hole 25. be able to. Accordingly, first, the support rod 12 required in the conventional structure (see FIG. 13) is not required, and simplification can be achieved. Secondly, since the upper side portion 25a of the hole is directly pulled toward the through hole 24 by the pulling force of the one end 5a, the front end sides of the fastening pieces 23a and 23b are easily brought into close contact with each other, and the pulling operation can be performed smoothly. it can. Third
In the final state of the pulling operation, as shown in the enlarged view of FIG. 7, the protruding portion 27b contacts the lower side of the protruding portion 27a, that is, the inner surface of the fastening piece 23a, and the end face of the protruding portion 27a and the protruding portion 27b. Between the band 5 and the band 5 can be strongly sandwiched.

Further, when the pulling operation has been performed to some extent, the band portion bypassing the upper edge portion of the through hole 25 is in contact with the locking claw portion 30, and furthermore, the band portion 5 has its tension force to some extent. Since it is pushed to the locking claw portion 30 side, it is subjected to the biting action of the locking claw portion 30 (see the enlarged portions in FIGS. 1A and 8A). As a result,
Even if the operator stops the pulling operation in the middle, the band 5 is locked in the tensioned state. Therefore, when the worker starts the pulling operation again, the worker can start the pulling operation from the above-mentioned halfway state, and the work efficiency is high. Further, after the pulling operation is completed and the worker releases the pulling force, the band portion bypassing the upper edge of the through hole 25 is engaged with the locking claw portion 30.
With the second locking claw portion 31,
In addition to the biting action of the locking claw portion 30, the resistance of the second locking claw portion 31 is also received, so that the bending of the band 5, that is, the return of the one end 5 a can be more reliably prevented.

Further, in this structure, one end 5a of the band 5 is
Can be removed very simply and quickly from the band tightening tool 20 using the. That is, the operator pushes the operation piece 28 in the direction of the tightening piece 23b, that is, the locking claws 30 and 31 away from the belt portion to elastically incline (see FIGS. 1B and 8B). See each enlargement). When removing from a large number of band fasteners 20, for example, an L-shaped operation member is prepared, and this operation member is hooked on the operation piece 28 through the insertion hole 28a, and the operation piece 28 is pulled. When tilted more efficiently, it can be performed efficiently. When the operation piece 28 is tilted as described above, first, after the locking claw 31 separates from the band portion, the sharp tip of the locking claw 30 separates from the band portion to release the biting state. You. Then one end 5
Since the a side is originally pulled in the returning direction by the tension of the band 5, the band 5 is smoothly pulled while sliding along the lower surface of the locking claw portion 30 or the upper edge of the through hole 24. The initial state is loose. Therefore, the worker only needs to pull out the band 5 from the state with respect to the band fastener 20. Note that, of course, the band fastener 20 is pulled out of the pipe 3 and removed.

(Second Embodiment) FIGS. 8 to 12 show a second embodiment of the band fastener according to the present invention, FIG. 8 is an explanatory view of the operation of the band fastener, FIG. 9 is an external view of the band fastener. FIG.
0 is a view of the band tightening tool as viewed from above and below, FIG. 11 is a view as viewed from the front and back, FIG. 12 (a) is a view as viewed from the side, and FIG. FIG. 4 is a longitudinal sectional view as viewed from the direction of the line B. The band tightening member 40 is a resin molded body, and is provided at a substantially U-shaped folded portion and has an annular portion 41 having an opening through which the pipe 3 can be inserted, and a clamping piece forming both ends of the U-shaped portion. Parts 43a, 43b and band through holes 44, 45 provided in the respective fastening pieces 43a, 43b.
And an operation piece 4 extending to an end of the fastening piece 43a.
8 are provided integrally. That is, the band fastener 40 of the second embodiment has the same basic structure as that of the first embodiment, and is different only in that it is used when the pipe 3 is small in diameter. For this reason, in the description of the embodiment, since the contents of paragraphs 0014 to 0023 apply as they are in the next reread, the reread is listed and duplicated description is omitted, and only different points will be described.

(Read) The annular portion 21 is replaced with the annular portion 41.
The reinforcing ribs 22 are attached to the reinforcing ribs 42, and the fastening pieces 23a,
23b to the fastening pieces 43a, 43b, the through holes 24,
25 to the through holes 44 and 45, the hole upper side 25a to the hole upper side 45a, the guide wall 26 to the guide wall 46, and the ridge 27
a and 27b to the raised portions 47a and 47b, the operation piece 28 to the operation piece 48, the insertion hole 28a to the insertion hole 48a, the projection 29 to the projection 49, and the locking claw 30 to the locking claw. In step 50, the second locking claw 31 is replaced with the second locking claw 51, respectively.

The band fastener 40 of the second embodiment includes a pipe 3
Is used when the diameter is small (in other words, in the case of a wire or the like), the annular portion 41 is also extremely small.
The annular portion 41 is the same as the first embodiment in that the annular portion 41 is provided in a substantially U-shaped folded portion and has an opening through which the small-diameter pipe 3 can be inserted.
The protrusion 49 for preventing the slippage is devised. That is, the protrusion 49 is located on the inner surface of the fastening pieces 43a and 43b facing each other as compared with the protrusion 29 of the first embodiment, and
It is provided at a position very close to 1. This is because, since the annular portion 41 is small, the pressure contact force in a state where the pipe 3 is pushed into the annular portion 41 is also weak, and without the projection 49, the band tightening tool 40 falls out of the pipe 3 or falls down. However, when the band tightening member 40 tries to fall down, the protrusion 29 is provided close to the inscribed circle of the annular portion 41 as in the second embodiment. , And can be prevented from completely falling down, thereby improving workability.

In each of the above-described embodiments, the case where the band is used to fix a band in a simple greenhouse has been described. However, the band fasteners 20 and 40 are not limited to this, and may cover, for example, a truck bed. Naturally, it can also be used to hold the fixed band used to suppress the sheet-like material in tension.

[0028]

As described above, according to the band tightening device of the present invention, the rod can be attached to the rod simply by inserting the rod into the U-shape. When assembled and pulled, the locking claw bites into the corresponding portion of the band, so that the band can be reliably prevented from returning. Therefore, in addition to the simple configuration and excellent mounting operability, the tensioned band holding force can be more reliably maintained,
Even when the band is elastically slightly loosened due to long-term use, the holding state can be maintained, thereby improving the quality.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an operation of a band fastener according to a first embodiment of the present invention.

FIG. 2 is an external perspective view of the band fastener of the first embodiment.

FIG. 3 is a view of the band fastener of the first embodiment as viewed from above and below.

FIG. 4 is a view of the band fastener of the first embodiment as viewed from the front and back.

FIG. 5 is a side view of the band fastener of the first embodiment.

FIG. 6 is a longitudinal sectional view as seen from the direction of the line AA in FIG. 4 (b).

FIG. 7 is a schematic perspective view showing the band fastener of the first embodiment in a used state.

FIG. 8 is a cross-sectional view showing the operation of the second embodiment of the band fastener according to the present invention.

FIG. 9 is an external perspective view of the band fastener of the second embodiment.

FIG. 10 is a view of the band fastener of the second embodiment as viewed from above and below.

FIG. 11 is a front view and a rear view of the band fastener of the second embodiment.

FIG. 12 is a side cross-sectional view of the band fastener of the second embodiment.

FIG. 13 is a view showing an example of a conventional band tightener for a greenhouse in use.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Greenhouse 3 Pipe (rod body) 5 Band 20 and 40 Band tightening tool 21 and 41 Ring part 23a and 23b Tightening piece part 42a and 42b Tightening piece part 24 and 34 Through hole 45 and 45 Through hole 28 and 48 Operation piece part 28a, 48a Insertion holes 30, 50 Locking claw portions 31, 51 Second locking claw portions

Claims (5)

[Claims] An end of a band is pressed against a fixed rod body in a tensioned state, and the whole is substantially U-shaped.
A resin comprising a fastening piece that forms the both sides of the shape and regulates the rod inserted into the inside from both sides, and a through hole provided at the tip end of each of the fastening pieces and through which the band is inserted. In the band tightening device, the two tightening pieces are formed such that their distal ends are accessible to each other, and the positions of the respective through holes are shifted in a direction in which the band is extended in the close state. Along with
One of the fastening pieces has a locking claw projecting outside the upper edge of the through hole, and one end of the band passes through each of the through holes, and By bypassing the upper side of the hole of the tightening piece, and again inserting and pulling through the through hole of one of the tightening pieces, the locking claw bites into the corresponding part of the band in a state where the band is tensioned. A band tightening device that prevents the band from returning. 2. One of the fastening pieces has a locking claw portion formed in the shape of a sawtooth blade, and protrudes from a base side of the locking claw portion substantially in parallel with the locking claw portion. The band fastener according to claim 1, further comprising a second locking claw portion. 3. The method according to claim 1, wherein the one fastening piece has an operating piece integrally extending through the through hole, and the operating piece is elastically inclined toward the other fastening piece. The band tightening device according to claim 1, wherein a state in which the locking claw bites the band side can be released. 4. The band tightening device according to claim 3, wherein the operation piece portion has a penetrating insertion hole. 5. An annular portion having an opening capable of pushing the rod body is formed in the U-shaped folded portion,
2. The band tightening device according to claim 1, further comprising a projection on an inner surface of each of the fastening pieces approaching the annular portion to prevent the rod inserted into the annular portion from coming off.