JP2012052585A - Belt clamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform fastening work of a band rapidly and reliably so as to maximize the efficiency of working.SOLUTION: A belt clamp includes a band 10 formed with a tooth groove 11, a body 20, a buckle part 30, and a throttle bolt 40, and in the body, an inclined edge 23 and an inclined long hole 24 are respectively formed on a side plate 22 formed in a base 21 in face-contact with one end of the band to be inserted, and the buckle part 30 is provided with first and second axis holes 32, 34 on a support plate 31 rotated at an upper part between the side plates, and has a rotary shaft 33 fitted into the inclined long hole and a locking step part 35 to be freely locked with the inclined edge, and further has a stopper 36 to be locked with so as to cover the side plate. The throttle bolt 40 has a screw thread which is fitted to the second axis hole and rotated freely and is meshed with the tooth groove 11 of the band, and is composed of snap grooves 25 in which snap protrusions 37 protruded to the inner side of the stopper are fitted and which are respectively drilled and formed on outer sides of the side plate.

Description

  The present invention relates to a belt clamp, and more particularly, to a belt clamp that reliably and quickly performs a band fastening operation by snap engagement between a snap projection and a snap groove to prevent assembly failure and maximize work efficiency. .

  Generally, ducts and hoses are installed for ventilation, air conditioning, etc. for exhausting indoor air to the outside, or for inducing smoke gas or dust from the factory to the outside. The belt is clamped by a belt clamp to extend its length, or is connected to a duct or hose bent or curved at a different angle to change the fluid flow path.

Korean Patent No. 0658542 (Patent Document 1), in which “belt-type hose band” is presented as another name of “belt clamp”, was published on December 19, 2006 (patent document issued). Is described as follows with reference to Patent Document 1 (in this case, the member names and symbols for each component of Patent Document 1 are the names and names corresponding to the present invention for the sake of understanding of the present invention). (It shall be expressed using a sign).

  3a to 3c are perspective views showing an assembling process of the belt-type hose band according to Patent Document 1. FIG.

  As shown in FIGS. 3a to 3c, a belt-type hose band according to Patent Document 1 includes a band 10, a body 20, a buckle portion 30, and a bolt-shaped member that functions as a worm in cooperation with the band (this specification). In FIG. 4).

  The band 10 can be made of stainless steel that does not easily corrode, and has a tooth groove 11 on the surface.

  The body 20 has one end of the band 10 inserted therein and in surface contact with the portion, one end of the band is spot welded to the base 21, and side plates 22 extending on both sides of the base 21 upward in the drawing. 22 is formed. The side plates 22 and 22 respectively form inclined end edges 23 and 23 that are inclined toward the other end of the band 10, and inclined long holes 24 and 24 that face each other.

  The buckle portion 30 has a first shaft hole 32 in a first bearing plate 38 extending from one end of a support plate 31 rotating at an upper position between the side plates 22 and 22 of the body 20 to the upper side of the drawing, and both sides thereof. The second bearing plate 39 has rotating shafts 33, 33 respectively fitted in the notched arc-shaped inclined elongated holes 24, 24 extended to the upper side and extended upward from the other end of the support plate 31. , A second shaft hole 34, and locking step portions 35, 35 fitted to the inclined end edges 23, 23, respectively, and extended upward from both sides of the support plate 31 so as to extend to the side plates 22, 22. Stoppers 36, 36 which are engaged so as to cover each other.

  The throttle bolt 40 is engaged with or engaged with the tooth groove 11 of the band 10 while being inserted into the first shaft hole 32 and the second shaft hole 34 and rotating there (referred to as “free rotation” in this specification). It has a worm-like thread 41 to be applied.

  When the assembly process of the band 10, the body 20, the buckle part 30, and the throttle bolt 40 is seen, as shown in FIGS. 3 a to 3 c, one end of the band 10 having the tooth groove 11 is placed in the base 21 of the body 20. After inserting and making surface contact with each other, spot welding, and inserting the throttle bolt 40 into the first shaft hole 32 and the second shaft hole 34 of the buckle portion 30 so as to rotate freely, the rotation shaft of the buckle portion 30 is inserted. The assembly is completed in a state in which 33 and 33 are fitted in the direction of the second shaft hole 34 of the inclined long holes 24 and 24 of the body 20, that is, the side plates 22 and 22.

  The fastening process of the belt-type hose band according to Patent Document 1 will be described with reference to FIGS. 4a to 4d.

  4a to 4d are side views showing a fastening process of the belt-type hose band according to Patent Document 1. FIG.

  As shown in FIG. 4 a, with the rotating shafts 33, 33 of the buckle portion 30 fitted in the inclined elongated holes 24, 24 of the body 20, the buckle portion 30 is moved together with the throttle bolt 40 to 90. After rotating to an upright state of ° (vertical) to secure a gap between the support plate 31 and one end of the band 10, for example, the other of the band 10 along the outer peripheral edge of a duct (not shown; hereinafter the same) The end is wound in the direction of the arrow and inserted into the gap between the support plate 31 and one end of the band 10.

  Then, as shown in FIG. 4 c, the buckle portion 30 with the throttle bolt 40 inserted is further rotated, that is, rotated 180 ° from the initial position around the rotation shafts 33, 33. Is engaged with the tooth groove 11 of the band 10.

  Next, as shown in FIG. 4d, the throttle bolt 40 is rotated freely using a screwdriver (for example, an electric screwdriver) D so that the screw thread 41 is engaged with the tooth groove 11 and rotated, so that one end of the band 10 is moved. As a reference, the other end is wound up, that is, tightened to tighten the duct.

  At this time, in the process in which the other end of the band 10 is wound with the one end of the band 10 as a reference, the rotary shafts 33 and 33 move in the inclined elongated holes 24 and 24 toward the inclined end edges 23 and 23, and The locking step portions 35 and 35 of the buckle portion 30 slide along the inclined end edges 23 and 23 of the body 20 and engage with the portions, and are located between the body 20 and the support plate 31. By making the thread 41 of the throttle bolt 40 tightly fixed to the tooth groove 11 of the band 10, the assembly between them is completed.

  5a to 5c are side views showing problems that occur in the fastening process of the belt-type hose band according to Patent Document 1. FIG.

  As shown in FIG. 5B, the belt-type hose band of Patent Document 1 is shown in FIG. 5B in a state where the rotation shafts 33, 33 of the buckle 30 are fitted in the inclined long holes 24, 24 of the body 20, as shown in FIG. , The buckle portion 30 is rotated 90 ° together with the throttle bolt 40 to stand up to secure a gap between the support plate 31 and one end of the band 10, and then, for example, the other end of the band 10 is moved along the outer peripheral edge of the duct. As shown in FIG. 5 c, the buckle part 30 with the throttle bolt 40 inserted is rotated 180 ° and wound into the gap between the support plate 31 and one end of the band 10. When the thread 41 of 40 is matched with the tooth groove 11 of the band 10, an expansion force is generated by the elasticity of the band 10 itself made of stainless steel material, and the electric screwdriver D is used. Even if it tries to rotate the lottle bolt 40, the thread 41 does not match the tooth gap 11 and it floats up, and the locking step portions 35, 35 are smoothly moved along the inclined edges 23, 23. Since it cannot slide and is locked and stopped at the end portions of the inclined end edges 23, 23, there is a problem that makes assembly work extremely difficult.

  As a result, the operator must rotate the electric driver D while pressing the support plate 31 from the top to the bottom (pressing with fingers). This brings about the problem of drastically reducing.

Korean Patent No. 0658542

  The present invention has been developed to overcome the above-mentioned problems and disadvantages. The purpose of the present invention is to provide a belt clamp that can quickly and reliably fasten a band by a snap coupling between a snap projection and a snap groove. It is to provide.

  Hereinafter, means for solving the problem will be described together with reference numerals used in the embodiment for carrying out the invention. This symbol is intended to clarify the correspondence between the description of the claims and the description of the mode for carrying out the invention. Needless to say, it is used for the interpretation of the technical scope of the claims of the present invention. It is not used restrictively.

To achieve the above object, the present invention provides:
A belt clamp including a band 10 in which a tooth groove 11 is formed, a body 20, a buckle 30 and a throttle bolt 40;
The body 20 is
One end of the band is inserted, the base 21 is in surface contact with the one end, side plates 22 and 22 extending upward from both side edges of the base, and the side plate is inclined toward the other end of the band Inclined elongated holes 24, 24 each having end edges 23, 23 and facing each other are formed,
The buckle portion 30 is
The support plate 31 that rotates above the side plates 22 and 22 has a first shaft hole 32 at a position above one end in the longitudinal direction, protrudes from both edges in the width direction, and fits into the inclined elongated holes 24 and 24, respectively. The rotation shafts 33 and 33 to be mounted, and the second shaft hole 34 at the upper position from the other longitudinal end of the support plate 31, protrude from both edges in the width direction, and are respectively associated with the inclined end edges 23 and 23. And have stoppers 36 and 36 that protrude upward from both sides in the width direction of the support plate 31 and lock so as to cover the side plates 22 and 22, respectively. ,
The throttle bolt 40 is
A screw thread 41 that is inserted into the first shaft hole 32 and the second shaft hole 34 and loosely meshes with the tooth groove 11 of the band;
Receiving the snap projections 37, 37 projecting in the stopper 36, 36 in the opposite direction, respectively, and the snap projections formed in the outer side of the side plates 22, 22 in the opposite direction to the facing direction; Snap grooves 25, 25 to be fitted,
The basic feature of the technical construction is to consist of

  In the present invention, the snap projection can be formed in a hemispherical shape, and the snap groove can be formed in an elliptical shape.

  Further, it is preferable that one end of the band that is in surface contact with the base of the body is formed with a bent recess that is fitted and engaged with the base.

  According to the present invention, the snap coupling of the snap projection and the snap groove can speed up the band fastening operation to prevent the assembly failure, and the operability and the efficiency of the assembly can be maximized.

  In the present invention, the buckle portion into which the throttle bolt is inserted is rotated so that the thread of the throttle bolt engages with the tooth groove of the band, and the snap projection of the stopper is engaged with the snap groove of the body firmly. (The “snap engagement” in this specification), the pressing force of the support plate can be maintained as it is, so that even if the expansion force is generated by the elasticity of the band itself, the thread of the throttle bolt does not It can be directly meshed with the tooth groove of the band, and when trying to rotate the throttle bolt with an electric screwdriver, natural operation is possible, of course, the screw thread is meshed with the tooth groove and the other is used as a reference. It is possible to wind up the end so that the duct can be tightened naturally, and without the locking step of the buckle being locked to the end of the inclined edge of the body, Sliding along the inclined edge of the moose, engaging with the inclined edge, the thread of the throttle bolt located between the body and the support plate and the tooth groove of the band are more closely meshed with each other It can be fixed and assembly between each member can be realized quickly and reliably.

  The present invention has an effect that when the snap projection is formed in a hemispherical shape and the support plate is pressed toward the body, the hemispherical curved surface of the snap projection can be easily fitted along the snap groove. When the support plate is removed from the hemisphere, the hemispherical curved surface of the snap projection moves along the snap groove and can be easily separated.

  According to the present invention, the snap groove is formed in an elliptical shape, and the snap projection moves along the elliptical snap groove in combination with the rotation shaft being pushed along the inclined elongated hole, so that the detached state can be guaranteed. .

  In the present invention, if the bent recess is fitted and engaged with the base and spot-welded to the base, the spot-welded state of the base and the bent recess can be maintained firmly even when the band is wound by the throttle bolt. Can be eliminated.

It is a perspective view which shows the assembly process of the belt clamp which concerns on this invention. It is a perspective view which shows the assembly process of the belt clamp which concerns on this invention. It is a perspective view which shows the assembly process of the belt clamp which concerns on this invention. It is a side view which shows the fastening process of the belt clamp which concerns on this invention. It is a side view which shows the fastening process of the belt clamp which concerns on this invention. It is a side view which shows the fastening process of the belt clamp which concerns on this invention. It is a side view which shows the fastening process of the belt clamp which concerns on this invention. It is a perspective view which shows the assembly process of the belt-type hose band which concerns on patent document 1. FIG. It is a perspective view which shows the assembly process of the belt-type hose band which concerns on patent document 1. FIG. It is a perspective view which shows the assembly process of the belt-type hose band which concerns on patent document 1. FIG. It is a side view which shows the fastening process of the belt-type hose band which concerns on patent document 1. FIG. It is a side view which shows the fastening process of the belt-type hose band which concerns on patent document 1. FIG. It is a side view which shows the fastening process of the belt-type hose band which concerns on patent document 1. FIG. It is a side view which shows the fastening process of the belt-type hose band which concerns on patent document 1. FIG. It is a side view which shows the problem which generate | occur | produces in the fastening process of the belt-type hose band which concerns on patent document 1. It is a side view which shows the problem which generate | occur | produces in the fastening process of the belt-type hose band which concerns on patent document 1. It is a side view which shows the problem which generate | occur | produces in the fastening process of the belt-type hose band which concerns on patent document 1.

  A preferred embodiment of the belt clamp according to the present invention will be described with reference to the drawings.

  1a to 1c are perspective views illustrating an assembly process of a belt clamp according to the present invention.

  The belt clamp according to the present invention includes a band 10, a body 20, a buckle portion 30, and a throttle bolt 40 as shown in FIGS. 1a to 1c.

  The band 10 can be made of stainless steel made of a material that does not easily corrode, and has tooth grooves 11 at predetermined intervals parallel to the longitudinal direction on the surface.

  One end of the band 10 is inserted into the body 20 and brought into surface contact with the one end. One end of the band is spot-welded to the base 21, and side plates 22 and 22 extending upward from both side edges in the width direction of the base 21 are provided. Form. The side plates 22, 22 form inclined end edges 23, 23 inclined toward the other end of the band 10, respectively, and form notched arc-shaped inclined elongated holes 24, 24 facing each other.

  The buckle portion 30 is formed with a first shaft hole 32 in a first bearing plate 38 extending from the longitudinal end of the support plate 31 rotating upward between the side plates 22 and 22 of the body 20 upward in the drawing. , Which protrudes from both edges in the width direction, has rotating shafts 33 and 33 fitted in the inclined elongated holes 24 and 24, respectively, and extends from the other longitudinal end of the support plate 31 upward in the drawing. A second shaft hole 34 is formed in the bearing plate 39. Further, locking step portions 35, 35 that protrude from both edges in the width direction and that can be engaged with the inclined edges 23, 23 are provided, respectively, and protrude upward from both sides in the width direction of the support plate 31. , 22 are formed so as to cover each of the stoppers 36, 36.

  The throttle bolt 40 is inserted into the first shaft hole 32 and the second shaft hole 34, and has a worm-like thread 41 that engages or meshes with the tooth groove 11 that forms the engagement hole of the band 10 while rotating freely. Have.

  At this time, the belt clamp according to the present invention is a snap for fitting the snap projections 37, 37 projecting inside the stoppers 36, 36 and the snap projections 37, 37 drilled and formed on the outside of the side plates 22, 22, respectively. Grooves 25 and 25 are included as a configuration.

  The portion of the band 10 that is in surface contact with the base 21 of the body 20 preferably forms a bent recess 12 that fits and engages with the base 21.

  When the assembly process of the band 10, the body 20, the buckle part 30, and the throttle bolt 40 is seen, as shown in FIGS. 1 a to 1 c, one end of the band 10 having the tooth groove 11 is placed in the base 21 of the body 20. The bent concave portion 12 is inserted into and engaged with the base 21, brought into surface contact with each other and spot-welded, so that the throttle bolt 40 rotates freely in the first shaft hole 32 and the second shaft hole 34 of the buckle portion 30. After that, the pivot shafts 33, 33 of the buckle 30 are fitted into the body 20, that is, the inclined long holes 24, 24 of the side plates 22, 22, thereby completing the assembly.

  As in Patent Document 1, when the band 10 is spot welded to the base 21 of the body 20 in a straight line state, the base 21 and the band 10 are separated from each other in the process of winding the band 10 by the rotation of the throttle bolt 40. However, when the bent recess 12 is provided in the band 10, since the bent recess 12 is fitted and engaged with the base 21 and spot welded, even if the band 10 is wound by the throttle bolt 40, It is possible to prevent a phenomenon in which the bent recess 12 is separated from each other.

  The fastening process of the belt clamp according to the present invention will be described with reference to FIGS. 2a to 2d.

  2a to 2d are side views showing a fastening process of a belt clamp according to the present invention.

  As shown in FIG. 2 a, with the rotary shafts 33, 33 of the buckle portion 30 fitted in the inclined long holes 24, 24 of the body 20, the buckle portion 30 is moved together with the throttle bolt 40 to 90. After standing up at 0 ° and securing a gap between the support plate 31 and one end of the band 10, the other end of the band 10 is wound around the outer periphery of a duct (not shown), for example, and the support plate 31 and Insert into the gap between one end of the band 10.

  Then, as shown in FIG. 2c, the buckle portion 30 to which the throttle bolt 40 is inserted is rotated, that is, rotated by 180 ° about the rotating shafts 33 and 33, and the thread of the throttle bolt 40 is rotated. 41 coincides with the tooth groove 11 of the band 10, and the snap projections 37, 37 of the stoppers 36, 36 are fitted into the snap grooves 25, 25 of the body 20 and snap-engaged.

  The snap projections 37, 37 of the stoppers 36, 36 are fitted into the snap grooves 25, 25 of the body 20, that is, the side plates 22, 22, so that the pressing force of the support plate 31 can be maintained as it is. Therefore, even if a force for expanding the band is generated by the elasticity of the band 10 itself, the thread 41 of the throttle bolt 40 can be brought into close contact with the tooth groove 11 of the band 10 to be engaged.

  Next, as shown in FIG. 2d, the screw bolt 41 is engaged with the tooth groove 11 by rotating the throttle bolt 40 using a screwdriver (electric screwdriver; D), and the other end with reference to one end of the band 10. The duct can be tightened naturally by winding the end.

  At this time, in the process in which the other end of the band 10 is wound with the one end of the band 10 as a reference, the rotary shafts 33 and 33 move in the inclined elongated holes 24 and 24 toward the inclined end edges 23 and 23, and The locking step portions 35 and 35 of the buckle portion 30 slide along the inclined end edges 23 and 23 of the body 20 and engage with the portions, and are located between the body 20 and the support plate 31. By making the thread 41 of the throttle bolt 40 tightly fixed to the tooth groove 11 of the band 10, the assembly between them is completed.

  More specifically, the snap projections 37, 37 of the stoppers 36, 36 are rotated while the buckle portion 30 to which the throttle bolt 40 is inserted is rotated 180 ° so that the thread 41 of the throttle bolt 40 is engaged with the tooth groove 11 of the band 10. Is engaged with the snap grooves 25 and 25 of the body 20 and snap-engaged, so that the pressing force of the support plate 31 can be maintained as it is, and even if a force for expanding the band is generated by the elasticity of the band 10 itself, the throttle bolt 40 Since the screw thread 41 is meshed with the tooth groove 11 of the band 10 as it is, when the throttle bolt 40 is rotated by the electric screwdriver D, natural operation becomes possible, and the thread thread 41 meshes with the tooth groove 11. In addition, the duct 10 can be naturally tightened by winding up the other end with respect to one end of the band 10, and the buckle portion 30 can be locked. 35 and 35 are not hooked to the end portions of the inclined end edges 23 and 23 of the body 20, but naturally slide along the inclined end edges 23 and 23 to engage with the inclined end edges 23 and 23, respectively. 20 and the support plate 31, the screw 41 of the throttle bolt 40 and the tooth groove 11 formed in the band 10 can be kept in close contact with each other. Complete without fail.

  In this embodiment, the snap projections 37, 37 are formed in a hemispherical shape, and the snap grooves 25, 25 are formed in an elliptical shape.

  When the snap projections 37 and 37 are formed in a hemispherical shape, the hemispherical curved surface of the snap projections 37 and 37 is easily fitted along the snap grooves 25 and 25 when the support plate 31 is pressed toward the body 20. When the support plate 31 is separated from the body 20, the hemispherical curved surfaces of the snap projections 37 and 37 can be easily separated from the snap grooves 25 and 25, and the snap grooves 25 and 25 are preferable. Is formed in an elliptical shape, the rotation shafts 33, 33 move along the inclined elongated holes 24, 24 from the upper limit point in the direction of the inclined end edges 23, 23 to the lower limit point in the opposite direction. In combination with being pushed, the snap protrusions 37, 37 can be maintained in the detached state along the elliptical snap grooves 25, 25, which is particularly preferable.

10 Band 11 Tooth groove 12 Bent recess 20 Body 21 Base 22, 22 Side plate 23, 23 Inclined edge 24, 24 Inclined long hole 25, 25 Snap groove 30 Buckle portion 31 Support plate 32 First shaft hole 33, 33 Rotation Shaft 34 Second shaft hole 35, 35 Locking step portion 36, 36 Stopper 37, 37 Snap projection 38 First bearing plate 39 Second bearing plate 40 Throttle bolt 41 Thread D Driver

Claims (3)

Includes a band with tooth gaps, body, buckle and throttle bolt,
The body is
A base into which one end of the band is inserted and in surface contact with the one end, a side plate extending upward from both side edges in the width direction of the base, and an inclined end edge inclined toward the other end of the band of the side plate, Each having a slanted elongated hole facing each other,
The buckle part is
A first shaft hole at a position above one end in the longitudinal direction of the support plate that rotates above the side plates, and a rotation shaft that protrudes from both edges in the width direction and is fitted in each of the inclined long holes; The support plate has a second shaft hole at an upper position from the other end in the longitudinal direction of the support plate, protrudes from both edges in the width direction, and has a locking step portion that can be engaged with each of the inclined end edges, and the support plate Having a stopper that protrudes upward from both sides in the width direction and that is locked to cover each of the side plates,
The throttle bolt is
A thread that is inserted into the first shaft hole and the second shaft hole and loosely meshes with the tooth groove of the band;
further,
A belt clamp comprising: a snap projection protruding from the stopper; and a snap groove for receiving and fitting the snap projection formed in each of the side plates. The snap protrusion is formed in a hemispherical shape,
The belt clamp according to claim 1, wherein the snap groove is formed in an elliptical shape.   The belt clamp according to claim 1 or 2, wherein the band in surface contact with the base of the body has a bent recess.

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