JP2007333078A - Hose band - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hose band capable of being easily manufactured without needing welding, with respect to the hose band having a housing applying a metallic plate as a material and press molded. <P>SOLUTION: This hose band comprises a spindle 60 having a head portion and a shaft portion, and provided with worm teeth on an outer periphery of the shaft portion, the housing 70 composed of the metallic plate, approximately cylindrically press molded so that one side end portion and the other side end portion of the metallic plate are opposed to each other, and rotatably supporting a spindle by inserting the shaft portion of the spindle 60 thereto, and a band plate 80 which is provided with an inserting portion for inserting the shaft portion of the spindle 60 at one end side 82, and in which one end side 82 is disposed between a head portion of the spindle 60 and an end face of the housing 70, the other end side 83 has a worm groove 81 engaged with the worm teeth, and the other end side is inserted between the shaft portion of the spindle 60 and a bottom portion of the housing 70, so that the band plate 80 has the annular shape in such manner that one end side 82 is located at an outer side and the other end side 82 is located at an inner side. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a hose band used when connecting a hose to a connection port of various piping devices.

  When connecting a hose to a connection port provided in various piping equipment such as a blower fan or a faucet, an instrument that fixes the connection between the connection port and the hose by tightening the hose attached to the connection port, so-called "hose" "Clip" is used. As a kind of hose clip, there is a so-called “hose band” that tightens the hose by reducing the diameter of an annular band plate. In the hose band, as shown in FIG. There is a type that includes a spindle 10 having a diameter of the annular strip 30 provided with the worm groove 31 by rotating the spindle 10.

  In the hose band 1 using such a worm 10, the housing 20 that rotatably supports the spindle 10 is provided integrally with the band plate 30. The housing 20 is formed of a metal plate. It is common.

  The structure of the housing 20 will be described in detail. As shown in FIG. 5, the housing 20 is formed by bending a metal plate as a raw material, so-called “press molding”. The end portion 21 and the other end portion 22 are formed in a substantially cylindrical shape so as to face each other. The substantially cylindrical housing 20 is externally fitted to one end side 32 of the band plate 30 and is fixed to the band plate 30. Further, the housing 20 has a bottom 23 at a portion where the one end 21 and the other end 22 of the material are abutted, and the band 23 is located inside the annular strip 30. It is fitted on the plate 30.

  Thus, in the hose band 1 in which the housing 20 is formed of a metal plate, the spindle 10 is rotated to reduce the diameter of the annular band plate 30, and thus the hose attached to the connection port is firmly tightened. An enormous force is applied to the end surface of the housing 20 that comes into contact with the head portion 10, and the space between the one end portion 21 and the other end portion 22 of the material is widened at the bottom portion 23 of the substantially cylindrical housing 20. There is a possibility that the shaped housing 20 is deformed in the radial direction. Therefore, in the conventional hose band 1, the one side edge part 21 and the other side edge part 22 which were faced | matched were welded (refer the code | symbol "a" part of FIG. 5). In addition, in order to fix the housing 20 to the band plate 30, the housing 20 is fixed to the band plate 30 by spot welding the bottom portion 23 of the housing 20 to the band plate 30 (part “b” in FIG. 5). reference).

  The above background art is a general matter, and the applicant of the present application has no particular knowledge of documents describing this background art at the time of filing.

  In the conventional hose band, since one end and the other end of the materials that are abutted with each other must be welded to each other at the bottom of the housing, the manufacturing operation of the housing is complicated. Further, when the housing is assembled to the band plate, the housing must be spot-welded to the band plate, so that the work of assembling the housing to the band plate is complicated. Therefore, the conventional hose band has a complicated manufacturing operation.

  The present invention has been made in view of the above circumstances, and provides a hose band in which a housing is press-molded using a metal plate as a raw material, and can be easily manufactured without requiring welding. Is an issue.

The main means taken by the present invention to solve the above problems are as follows:
“A spindle having a head and a shaft, and worm teeth formed on the outer periphery of the shaft,
Using a metal plate as a raw material, it is press-formed in a substantially cylindrical shape so that one end and the other end of the metal plate face each other, and the spindle is rotated by inserting the shaft portion of the spindle. A housing that supports movement;
An insertion part for inserting the shaft part of the spindle is provided on one end side, and the one end side is interposed between the head part of the spindle and the end surface of the housing, while the worm tooth is provided on the other end side. A meshed worm groove is provided, and the other end side is inserted between the shaft portion of the spindle and the bottom portion of the housing, and an annular band is formed so that the one end side is the outside and the other end side is the inside. A hose band characterized by comprising a plate "
It is.

  In the hose band configured as described above, since one end side of the band plate is interposed between the head portion of the spindle and the end surface of the housing, the head portion and the end surface of the housing do not directly contact each other. Therefore, even if the spindle is rotated to reduce the diameter of the annular band plate and thereby the hose attached to the connection port is firmly tightened, the housing formed in a substantially cylindrical shape from the head of the rotating spindle No force is applied to the end face of the housing to deform the housing in the radial direction. For this reason, in the hose band having the above-described configuration, it is not necessary to weld the one end and the other end of the material so as not to be separated from each other, and the welding work can be omitted when forming the housing.

  In addition, since one end side of the band plate is interposed between the spindle head and the end surface of the housing in a state where the shaft portion of the spindle is inserted into the insertion portion, the spindle and housing are assembled on one end side of the band plate. Will be attached. Therefore, the welding operation for fixing the housing to the band plate can be omitted.

  Thus, even if the housing is a hose band formed by press-molding a metal plate as a material, the hose band having the above-described configuration can be easily manufactured without requiring welding. In addition, since it is not necessary to insert the band plate into the housing and fix the band plate and the housing, the total length of the band plate can be shortened by the amount not required to be inserted into the housing, and the material of the band plate is reduced. It can also be made.

In the above means,
“The housing has a bottom portion at which one side end and the other end of the metal plate as a material face each other,
In the bottom portion, the one side end portion and the other side end portion of the metal plate are separated from each other at a predetermined interval.
It is good.

  In the hose band according to the present invention, the other end side of the band plate is inserted between the shaft portion of the spindle supported by the housing and the bottom portion of the housing. Therefore, when the hose is tightened, the other end side of the band plate is inserted. A back surface and the inner surface of the bottom part of a housing contact. Here, when the strip is formed of a thin material and the worm groove is formed in a penetrating shape, the top of the worm tooth peak of the spindle protrudes from the back of the strip and the bottom of the housing There is a risk of causing troubles such as touching.

  In the hose band configured as described above, since one end and the other end of the metal plate constituting the housing are spaced apart from each other at a predetermined interval at the bottom of the housing, the worm teeth of the spindle are located at the bottom of the housing. A relief of a predetermined width is formed so as not to contact. Therefore, it can prevent that the above-mentioned trouble arises. Further, when the substantially cylindrical housing is formed of the metal plate, the metal plate is spaced apart at a predetermined interval without causing the one end and the other end of the metal plate to face each other, so that the housing material can be reduced.

  As described above, according to the present invention, it is possible to provide a hose band in which a housing is formed by press-molding a metal plate as a raw material, and can be easily manufactured without requiring welding.

  Next, an example as an embodiment of the hose band concerning the present invention is explained in detail.

  The hose band according to the present invention connects a hose to the connection port of various fluid piping devices such as a gas piping device such as a blower fan or a ventilation duct, a liquid piping device such as a water tap or a hydraulic pressure generator. Although not shown, it is attached to the outer periphery of the hose attached to the connection port of various piping devices, and the hose attached to the connection port is firmly fixed by tightening the hose It is. In particular, it can be suitably used for tightening the hose so that the hose attached to the connection port does not fall off or loosen in various pipes in an environment where intense vibration occurs, such as an air duct of an automobile. Is.

  As shown in FIG. 1, a hose band 50 according to the present invention includes a spindle 60 having worm teeth 63 (see FIG. 2), a housing 70 that rotatably supports the spindle, and the worm teeth 63 on the other end side. And a belt plate 80 having an annular shape so that one end side 82 is on the outside and the other end side 83 is on the inside.

  Next, the spindle 60, the housing 70, and the strip plate 80 will be described in detail with reference to FIG.

  The spindle 60 has a head portion 61 and a shaft portion 62, and the worm teeth 63 are spirally formed on the outer periphery of the shaft portion 62. The head 61 is provided with a tool hook (in this example, a hexagonal tool hook) on which a tool such as a spanner can be hung, and the spindle 60 is rotated by the tool.

  The housing 70 is formed in a substantially cylindrical shape by press molding using a metal plate punched and formed in an appropriate shape as a raw material so that one end 72a and the other end 72b of the metal plate face each other. It is. Here, the bottom portion 72 of the housing 70 (the portion that is the inside of the hose band 50) is configured by the portion where the one side end portion 72a and the other side end portion 72b face each other. Further, the one side end portion 72a and the other side end portion 72b of the metal plate are opposed to each other so as to be separated from each other by a predetermined interval, and the gap between the one side end portion 72a and the other side end portion 72b of the metal plate is separated. Thus, a relief 73 of a worm tooth 63, which will be described in detail later, is formed. In addition, a semicircular arc-shaped insertion portion 71 through which the shaft portion 62 of the spindle 60 is inserted is provided at both end surfaces in the length direction of the housing 70, and the shaft portion 62 of the spindle 60 is inserted into the insertion portion of the housing 70. It is inserted through 71 and is rotatably supported by the housing 70.

  The band plate 80 in which the one end side 82 and the other end side 83 are overlapped to form an annular shape is bent so that the one end side 82 extends outward in the radial direction. An insertion portion 84 for rotatably inserting the shaft portion 61 of the spindle 60 is provided. Then, the spindle 60 is inserted into the one end side 82 of the band plate 80 and the housing 70 is attached to the spindle 60, whereby the spindle 60 and the housing 70 are assembled to the one end side 82 of the band plate 80. In this assembled state, one end side of the band 80 is interposed between the head 61 of the spindle 60 and the end surface of the housing 70.

  One end side 82 of the strip 80 interposed between the head 61 of the spindle 60 and the end surface of the housing 70 is the head 61 of the spindle 60 when the spindle 60 is rotated in the direction in which the strip 80 is tightened. , And the frictional force applied from the head portion 61 of the spindle 60 is prevented from being transmitted to the end surface of the housing 70, and functions as a so-called “washer”. In particular, it functions as a washer that does not rotate with the spindle 60.

  By the way, in this example, the insertion portion 84 provided on one end side of the band plate 80 is formed in a circular shape having a diameter smaller than the mountain diameter of the spindle worm tooth 63 and larger than the valley diameter, When the spindle 60 is assembled to the one end side 82 of the plate 80, the spindle 60 is inserted into the insertion portion 84 of the belt plate 80 while rotating the spindle 60 from the tip of the shaft portion 62 of the spindle 60. Therefore, if the spindle 60 is inserted through the insertion portion 84 of the band plate 80, the spindle 60 will not accidentally fall off the band plate 80. Further, even if a large frictional force is applied from the head 61 of the spindle 60, deformation around the through portion 84 on the one end side 82 of the band plate 80 is difficult to occur.

  In addition, about the insertion part 84 of the strip 80, you may form not in circular shape but in the shape by which one side was open | released like a U shape. In this way, by forming the insertion portion 84 of the band plate 80 into a shape with one side open, when the spindle 60 is assembled to the band plate 80, the spindle 60 is attached to the insertion portion 84 from the opened side. Therefore, the work of assembling the spindle 60 with respect to the band plate 80 can be simplified.

  In the hose band 50 of the present example configured as described above, as shown in FIG. 3, the other end 83 of the strip 80 is attached to the housing 70 assembled with the spindle 60 on the one end 82 of the strip 80. As a result, the entire band plate 80 is annular. Then, by rotating the spindle 60, the position of the other end side 83 of the strip 80 with respect to the housing 70 is adjusted, and the diameter of the annular strip 80 is changed. 50, unlike the conventional one, the other end side 83 sinks inside the one end side 82 of the band plate 80. Therefore, in this example, the distance between the end surface of the housing 70 (the end surface of the portion where the insertion portion 71 is provided) and the end surface of the bottom portion 72 in the length direction of the housing 70 is set on the proximal side of the shaft portion 62 of the spindle 60. The interval is made larger than the interval on the tip side. Thereby, the other end side 83 can be smoothly sunk inside the one end side 82 of the band plate 80.

  Further, in this example, the strip plate 80 is formed from a thin metal plate having a thickness of about 0.5 mm, and the worm groove 81 is formed in a slit hole shape punched through the strip plate 80 and penetrating. Yes. Therefore, if the other end side 83 of the band plate 80 is inserted between the shaft portion 62 of the spindle 60 and the bottom portion 72 of the housing 70 in the housing 70 so as not to rattle, the valley portion of the worm tooth 63 is obtained. And the inner surface of the bottom portion 72 of the housing 70 must be set to be slightly larger than the thickness of the band plate 80, and if this is done, the top of the worm teeth 63 becomes the bottom of the housing 70. It interferes with the inner surface of 72.

  Therefore, in this example, a relief 73 having a predetermined width is provided at the bottom 72 of the housing 70 so that the top of the worm teeth 63 does not interfere with the inner surface of the bottom 72 of the housing 70. As described above, the relief 73 is formed by the gap between the one end 72a and the other end 72b of the metal plate that is the material of the housing 70.

  By the way, in the hose band 50 of this example, the bottom part 72 of the housing 70 is located inside the annular band plate 80. Therefore, the outer surface of the bottom portion 72 of the housing 70 comes into contact with the peripheral surface of the hose to be tightened. Here, the bottom portion 72 of the housing 70 may be formed in a flat shape, but if it is formed in a curved shape that curves in the direction following the outer periphery of the hose, in other words, the bottom portion 72 of the housing 70 is formed in the length of the housing 70. In a direction, when the central portion is formed in a curved shape that is curved so as to approach the shaft portion 62 of the spindle 60 and both end portions are away from the shaft portion 62 of the spindle 60, the tightening force applied to the hose is spread over the entire outer periphery of the hose. A uniform tightening force can be approached, which is preferable.

It is a perspective view which shows an example of the hose band which concerns on this invention. It is the disassembled perspective view which looked at the part of the one end side of the strip in the hose band shown in FIG. 1 from the inner side. It is a cross-sectional front view of the housing part of the hose band shown in FIG. It is a perspective view which shows the conventional hose band. It is the perspective view which looked at the housing of the conventional hose band from the inner side of the hose band.

Explanation of symbols

50 Hose Band 60 Spindle 61 Head 62 Shaft 63 Worm Tooth 70 Housing 71 Insertion Part 72 Bottom 72a One Side End of Material 72b Other Side End of Material 73 Escape 80 Band Plate 81 Worm Groove 82 One End Side of Band Plate 83 The other end side of the band plate 84 Insertion part

Claims (2)

A spindle having a head and a shaft, and worm teeth formed on the outer periphery of the shaft;
Using a metal plate as a raw material, it is press-formed in a substantially cylindrical shape so that one end and the other end of the metal plate face each other, and the spindle is rotated by inserting the shaft portion of the spindle. A housing that supports movement;
An insertion part for inserting the shaft part of the spindle is provided on one end side, and the one end side is interposed between the head part of the spindle and the end surface of the housing, while the worm tooth is provided on the other end side. A meshed worm groove is provided, and the other end side is inserted between the shaft portion of the spindle and the bottom portion of the housing, and an annular band is formed so that the one end side is the outside and the other end side is the inside. A hose band comprising a plate. The housing has a bottom portion where one side end and the other end of the metal plate as a material face each other.
2. The hose band according to claim 1, wherein one end portion and the other end portion of the metal plate are separated from each other at a predetermined interval in the bottom portion.

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