JP3017227U - Adjust clamp - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the screw of the adjustment clamp from occurring so that the band does not come off. [Structure] The figure shows the adjusting clamp 1 tightening a fitting portion (not shown). In this adjust clamp 1, the screw 3 is lifted upward to release the engagement between the screw 3 and the locking hole (not shown) of the band 2. A lid member 6 is attached to the bracket 5 to prevent the screw 3 from rising up at its L-shaped tip.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an annular adjust clamp, and more particularly, to a clamp clamp having improved tightenability.

[0002]

[Prior art]

 6A to 6C show a conventional adjust clamp 20. In this adjust clamp 20, a screw 22 is attached to one end of a metal belt 21 with a bracket 23 interposed. In addition, a large number of locking holes (not shown) that engage with the thread 22a of the screw 22 are formed in the tip portion 21a at the other end of the belt 21. The method of using this adjust clamp 20 is to raise the screw 22, as shown in FIG. 6A. Then, the adjust clamp 20 is formed into an annular shape by overlapping the both ends of the metallic band 21 in the open state. This is shown in B of FIG.

In the adjust clamp 20, when the screw 22 is raised, the screw thread 22 a does not engage with the locking hole of the belt 21, and the tip portion 21 a of the band 21 can be pulled or returned. The diameter of the annular band 21 can be adjusted freely. Then, in order to fix the diameter of the band 21, as shown in FIG. 6C, the screw 22 is tilted down, and the thread portion 22a of the screw 22 is engaged with the locking hole of the band 21 to make the band Adjustment of 21 is performed by tightening the screw 22.

On the other hand, when the adjust clamp 20 is to be removed from the fitting portion, the screw 22 is raised to easily remove it by releasing the engagement relationship between the thread 22 a of the screw 22 and the locking hole. . As described above, the conventional adjust clamp 20 is characterized in that it can be easily attached and detached and the work can be performed quickly.

[0005]

[Problems to be solved by the device]

 However, although there is no problem when the adjust clamp is used in a stationary place, when it is used in a place where vibration is generated, the screw and the locking hole are disengaged and the band There was a case where it came off.

The present invention has been made in view of the above problems, and an object thereof is to provide an adjust clamp in which the engagement between the screw thread and the locking hole is not disengaged even when the adjust clamp is used in a place where vibration occurs. And

[0007]

[Means for Solving the Problems]

 The above objects are a band having a plurality of locking holes, a bracket attached to one end of the band, a screw that engages with the locking hole of the band, and a flat plate on which the ends of the screws are loosely fitted. And rotatably mounting the flat plate to the bracket, and when the band is looped with both ends overlapped in the longitudinal direction, the screw is tilted to engage the screw thread and the locking hole. In an adjust clamp in which the annular diameter is reduced by tightening the screws, a bracket is provided with a lid member that can be opened and closed, and the opening and closing axis of this lid member is arranged coaxially with the rotation axis of the flat plate. The recess formed on the opening / closing shaft of the member is fitted into the shaft portion of the rotary shaft of the flat plate, and when the lid member is closed, the regulating portion provided on the lid member is fixed. Prevents the screw from coming into contact with the screw It is achieved by adjusting clamps which consists was Unishi.

[0008]

[Action]

 When the adjust clamp is tightening the fitting part, the regulating part of the lid member prevents the screw from rising, so the screw thread of the screw and the locking hole of the band do not come off, and the adjust Even if the clamp is used in a place subject to vibration, the band will not come off.

[0009]

【Example】

 Hereinafter, an adjust clamp according to an embodiment of the present invention will be described with reference to the drawings.

1 and 2 show an adjusting clamp 1 according to the present invention, in which the adjusting clamp 1 is a band 2 made of a strip-shaped stainless steel plate and curved in a circular shape. The tip portion 2a, which is one end in the longitudinal direction of the band 2, is arcuate and has a large number of locking holes 2b of the same shape. A bracket 5 is attached to the rear end 2c of the other end of the band 2 by spot welding. In order to make it easier to attach the bracket 5 to the band 2, the rear end 2c of the band 2 is bent in a slightly convex shape (see FIG. 4), and the bottom of the bracket 5 formed in a U-shape in the recess on the back side thereof. It is attached by applying.

As shown in FIG. 3, the bracket 5 has large-diameter holes 5c and 5d and small-diameter holes 5e and 5f formed on both side plates 5a and 5b thereof, respectively. The bracket 5 has slits 5g and 5h formed in parallel with the small diameter holes 5e and 5f. A flat plate 4 and a screw 3 rotatably attached to the flat plate 4 are disposed inside the bracket 5. The flat plate 4 has a width a slightly smaller than the inner width of the bracket 5, and has shaft portions 4a and 4b projecting from both ends. These shaft portions 4a and 4b are fitted into the large diameter holes 5c and 5d of the bracket 5. The length of the protruding portions of the shaft portions 4a, 4b is slightly larger than the wall thickness of the bracket 5, and when the flat plate 4 is fitted in the large diameter holes 5c, 5d, the tips of the shaft portions 4a, 4b are large diameter holes 5c, 5d. Slightly protruding from.

A round groove 4c is formed below the flat plate 4, and the small diameter portion 3a of the screw 3 is loosely fitted in the round groove 4c. The head 3b of the screw 3 has a hexagonal shape like a hexagonal bolt, and a negative groove 3c is formed as shown in the figure. On the shaft portion 3d side of the screw 3, the neck portion 3e is substantially the same diameter as the small diameter portion 3a and is small, and the shaft portion 3d is formed larger than the diameter of the round groove 4c of the flat plate 4. Threads 3f are formed on the shaft 3d at the same pitch.

The pitch of the threads 3 f is equal to the distance between the locking holes 2 b formed at the tip of the band 2. The height from the root of the thread 3f is smaller than that of the neck 3e, larger in the middle, and smaller than that of the small diameter portion 3a. As shown in FIG. 2, the end 3g of the screw 3 is formed to have a diameter larger than that of the round groove 4c of the flat plate 4.

FIG. 4 shows a roller in which a flat plate 4 on which a screw 3 is loosely fitted is attached to a bracket 5. When the screw 3 is tilted down, the flat plate 4 is arranged substantially vertically to the bottom surface 5h of the bracket 5, and one band 2 is inserted between the lower end portion of the flat plate 4 and the rear end portion 2c of the band 2. There is a gap between the places. Then, as shown in the drawing, when the tip portion 2a of the band 2 is inserted into the gap, the screw thread 3f of the screw 3 and the locking hole 2b of the band 2 (see FIG. 2) mesh with each other. Therefore, the ring-shaped band 2 does not come off.

In this state, when the screw 3 is tightened, the diameter of the annular band 2 becomes small, and the fitting portion (not shown) is tightened. When the screw 3 is lifted up from the state shown in the drawing, the flat plate 4 is rotated counterclockwise around the shaft portions 4a and 4b, and the engagement between the screw thread 3f and the locking hole 2b is released. In the state where the screw 3 is raised, the end 3g of the screw 3 is directed downward, but between this end 3g and the bottom of the bracket 5, a gap of about 3 times the wall thickness of the band 2 is opened, The gap allows the band 2 to slide.

FIGS. 5A and 5B show the lid member 6. The lid member 6 covers the bracket 5. Recesses 6c, 6d are formed in the side plates 6a, 6b of the lid member, and when the lid member 6 is put on the bracket 5, the recesses 6c, 6d penetrate the large diameter holes 5c, 5d of the bracket 5. The shaft portions 4a and 4b projecting from the flat plate 4 are fitted. The recesses 6c and 6d of the cover member 6 are arranged coaxially with the large diameter holes 5c and 5d of the bracket 5 and the shaft portions 4a and 4b of the flat plate. When the lid member 6 is opened and closed, the recesses 6c and 6d serve as opening and closing shafts. In this embodiment, the lid member 6 is covered by the bracket 5 so that the lid member 6 is slightly opened and closed.

Further, holes 6e, 6f are formed in the side plates 6a, 6b of the lid member 6 at positions corresponding to the small diameter holes 5e, 5f of the bracket 5 in a state where the side plates 6a, 6b are arranged with the bracket 5 closed. ing. Therefore, when the lid member 6 is closed, the holes 5e and 6e are aligned on the side plate 6a side and the holes 5f and 6f are aligned on the side plate 6b side to form one through hole. The restriction portion 6g provided at the end portion of the lid member 6 is arranged at a position corresponding to the neck portion 3e of the screw 3. The width of the restricting portion 6g is smaller than the inner width of the bracket 5, and an arc-shaped groove 6h having a curvature substantially the same as the curvature is formed in the portion of the screw 3 that contacts the neck portion 3e.

As shown in FIG. 1, since the opening / closing axis of the lid member 6 and the rotation axis of the flat plate 4 are on the same axis, the lid member 6 and the screw 3 have the groove 6 h and the screw 3 of the lid member 6. It can be opened and closed while being in contact with the neck portion 3e. That is, it is not necessary to open the lid member 6 and then raise the screw 3 to remove the band 2, and if the screw 3 is raised, the lid member 6 is opened together with the screw 3.

The structure of the adjust clamp 1 according to the embodiment of the present invention has been described above. Next, its operation will be described.

In the adjust clamp 1, the band 2 is wound around a fitting portion such as a hose or a pipe (not shown). Then, as shown by the alternate long and short dash line in FIG. 1, the adjusting clamp 1 is formed into an annular shape by overlapping both ends of the band 2 with the screw 3 and the lid member 6 raised. When the screw 3 is raised, there is no engagement between the screw thread 3f and the engagement hole 2b, and the annular diameter of the band 2 can be increased or decreased. As a result, the fitting portion such as the hose or pipe is tightened by pulling the front end portion 2a of the band 2 with the screw 3 still raised. That is, since some of the locking holes 2b formed in the tip portion 2a of the band 2 are passed through, the fitting portion can be temporarily fixed without rotating the screw 3 for each locking hole 2b.

When the lid member 6 is tilted clockwise in this state, since the groove 6h of the lid member 6 is engaged with the neck portion 3e of the screw 3, the screw 3 is tilted and the screw thread 3f of the screw 3 is removed. The locking hole 2b of the band 2 is engaged. Then, by tightening the screw 3, the fitting portion is completely fixed by the band, and the work is completed. At this time, since the groove 6h of the regulating portion 6g of the lid member 6 regulates the neck portion 3e of the screw 3, the screw 3 does not rise and the band 2 is thereby prevented from coming off.

When the fitting portion is subjected to vibration, the lid member 6 is tightly fitted to the bracket 5 for a short time, so it is sufficient to cover the lid member 6 with The screw 3 is not raised and the engagement with the locking hole 2b of the band 2 is not released. However, if the tightening is long-term or semi-permanent, a locking member such as wire is inserted through the through hole formed by the holes 6e and 6f of the lid member 6 and the small diameter holes 5e and 5f of the bracket 5 to remove the lid member. You don't have to open 6. In this case, since the slits 5g and 5h formed in the bracket 5 are opened, the inner portion of the bracket 5 can be seen, and a locking member such as a wire can be easily passed through the hole.

On the other hand, when removing the adjust clamp 1 from the fitting portion, the engagement between the screw thread 3 f of the screw 3 and the locking hole 2 b of the band 2 can be released by raising the lid member 6 and the screw 3. The band 2 can then be removed by simply pulling out the tip 2a of the band 2 from the bracket 5.

As described above, in this embodiment, the fitting portion can be temporarily fixed by pulling the tip portion 2a of the band 2 in advance, so that the tightening of the screw 3 can be minimized and the work can be performed. Can be greatly shortened.

Further, after the adjusting clamp 1 tightens the fitting portion, the screw 3 occurs not only when the fitting portion is a stationary portion but also when it is subjected to vibration or when it is rotated. The adjust clamp 1 can securely tighten the fitting portion. Further, since the lid member 6 of this embodiment is attached to the bracket 5 by utilizing the shaft portions 4a and 4b of the flat plate 4 without using screws or the like, the assembly is easy and the number of parts is small. Not only the assembly time can be shortened, but also the cost can be reduced.

Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made based on the technical idea of the present invention.

For example, in the above-described embodiment, a locking member such as wire is used for the means for fixing the bracket 5 and the lid member 6 to the small diameter holes 5e and 5f of the bracket 5 and the holes 6e and 6f of the lid member 6. However, it is also possible to provide a convex portion on the bracket 5 side and a concave portion on the lid member 5 side to fit them.

Further, in the above embodiment, the recesses 6c and 6d of the lid member 6 are fitted to the shaft portions 4a and 4b of the flat plate 4, but holes are provided in place of the recesses 6c and 6d of the lid member. Alternatively, the ends of the shaft portions 4a and 4b may be penetrated therethrough and caulked.

[0029]

[Effect of device]

 According to the present invention, after the fitting portion is tightened to the adjust clamp, even if the fitting portion is vibrated, the screw thread of the screw and the locking hole are not disengaged, and the adjustment clamp is The fitting portion can be securely tightened. Further, the lid member can be easily attached to the bracket without using screws or the like, which can shorten the assembly time and reduce the cost.

[Brief description of drawings]

FIG. 1 is a side view showing that an adjusting clamp according to an embodiment of the present invention is formed into an annular shape and a lid member is closed to prevent a screw from being raised.

FIG. 2 is a plan view showing that the band of the adjust clamp is flatly extended and the lid member is opened.

FIG. 3 is a perspective view showing a method of attaching the bracket and the flat plate of the adjust clamp.

FIG. 4 is a side view showing a state where a lid member is attached to the adjust clamp.

FIG. 5A is a side view showing a lid member of the adjust clamp. FIG. 5B is a front view of the same.

FIG. 6A is a side view showing a state where a conventional adjustment clamp is opened. FIG. 6B is a side view showing that the bands of the adjust clamp are overlapped. FIG. 6C is a side view showing that the band and the screw are engaged.

[Explanation of symbols]

 1 Adjust Clamp 2 Band 2b Locking Hole 3 Screw 3f Screw Thread 4 Flat Plate 4a, 4b Shaft Member 5 Bracket 5e, 5f Small Diameter Hole 6 Lid Member 6c, 6d Recess 6e, 6f Hole 6g Restricting Part 6h Groove

Claims (2)

[Scope of utility model registration request] 1. A band having a plurality of locking holes, a bracket attached to one end of the band, a screw engaging with the locking hole of the band, and a flat plate on which the end of the screw is loosely fitted. The flat plate is rotatably attached to the bracket, and when the band is looped so that both ends are overlapped in the longitudinal direction of the band, the screw is tilted to engage the screw thread and the locking hole. In an adjust clamp in which the annular diameter is reduced by tightening the screws, a bracket is provided with a lid member that can be opened and closed, and the opening / closing axis of the lid member is arranged coaxially with the rotation axis of the flat plate. The recess formed in the opening / closing shaft of the member is fitted into the shaft portion of the rotary shaft of the flat plate, and when the lid member is closed, the regulating portion provided on the lid member is screwed. So that it does n’t screw up Adjust clamp consisting of things. 2. When the lid member is closed, a hole is formed through the lid member and both side plates of the bracket, and the locking member is inserted into the hole so that the lid member is fixed to the bracket and does not open. The adjust clamp according to claim 1, wherein