JPH04210109A - Hose band - Google Patents

Abstract

PURPOSE:To provide a hose band which presents less frictional resistance with a member to be fastened such as a hose, which can perform fastening without generating wrinkles on the hose, and which can well retain the liquid tightness, by applying a dry lubricant to that surface of the band where the hose contacts. CONSTITUTION:The inner surface of a band 2 where a hose 10 comes in contact, when the band 2 is rounded into ring form and wound on the hose 10, is subjected to a chemical formation process for forming a film. Thereover a dry lubricant is applied. This band 2 is rounded into ring form and wound on the hose 10, and the open parts at the two ends of the band 2 are coupled together using a fastening member 3 by means of spot welding 7, etc. The ring dia. is contracted by allowing a jig to cause plastic deformation of a tab 4 provided on the fastening member 3, and thus the hose 10 is tightened. The two mating surfaces are easy to glide with each other because the dry lubricant is applied to the inner surface of the band 2, where the hose is contacting, and the tightening can be made with less frictional resistance with the hose 10 and with no risk of generating wrinkles thereon. Thus the liquid tightness can be retained well.

Description

[Detailed description of the invention]

[00011

[Field of Industrial Application] The present invention relates to a hose band used for fixing a hose or a hose-like member made of rubber, hard resin, or the like. [0002] [0002] A conventionally used metal hose band is a metal band member 1, as shown in FIG. 6, for example.
1 and a tightening member 14 having ears 15. This band-shaped member 11 is rolled into a ring shape and wound around the hose 10, and the open ends of the band-shaped member 11 are connected to the tightening member 14.
The hose 10 is tightened by approaching the hose 10 by caulking. This tightening is carried out by spot welding 13 after one end of the tightening member 14 is positioned by fitting the protrusion 12 into the locking hole 16 at one open end of the strip member 11 and superimposing it, as shown in FIG. The other end side or the other open end of the strip member 11 is similarly fixed by spot welding 13, and the tightening provided on the tightening member 14 is achieved by plastically deforming the ear portion 15 with a jig. , the ring diameter is reduced and the hose 10 is tightened. At this time, the open end of the band member 11 is formed such that the blade end is formed into a convex portion and the other end is formed into a concave portion corresponding to the convex portion, and the two are tightened in a mutually fitted state. In addition, 17 in the figure indicates that the tightening is performed at the ear portion 15.
This is a reinforcing member fixed to the inner surface of the ear portion 15, and is tightened to prevent the tightening from loosening due to the return of deformation when the ear portion 15 is plastically deformed. [0003] Conventionally, as shown in FIG. 8, a metal band member 21 constituting a hose band 20 is rolled into a ring shape, and both ends of the band member 21 are overlapped inside and outside of each other and engaged. The projection 23 is fitted into the stop hole 24. The tightening part provided on a part of the band member 21 is attached to the ear part 25.
By plastically deforming the ring with a jig, the ring diameter is reduced and the hose 10 is tightened. [0004]

[Problems to be Solved by the Invention] However, in the conventional hose band, the inside surface (contact surface) of the hose band
Since the frictional resistance between the hose and the tightened member is large, when the hose is tightened, the hose is pulled on the inner surface of the hose band due to the frictional resistance, creating wrinkles A, as shown in Figures 7 and 8. do. This wrinkle A causes leakage. In view of these points, it is an object of the present invention to provide a hose band that solves the above-mentioned drawbacks. [0005] Means for Solving the Problems To achieve the above object, the present invention provides a hose band that is used by wrapping a metal band-like member around a member to be fastened. A hose band according to claim 1, wherein a dry lubricant is applied to the side surface of the member in contact with the member, and a hose band in which a metal band member is wrapped around a member to be tightened, wherein at least one of the band members is tightened. The member to be tightened has a structure according to claim 2, wherein a drying lubricating oil is coated with a chemical conversion coating on the side surface of the member in contact with the member. [0006]

[Function] Hose bands are made by wrapping a band-shaped member around a member to be tightened, such as a hose, connecting the open ends of the band-shaped member with a tightening member, and tightening with a jig by plastically deforming the ears, or While overlapping both ends of the band-like member inside and out, the protrusion provided on the inner mold portion is fitted into the locking hole provided on the outer mold portion, and the jig is used to tighten the ears. By deforming the ring, the diameter of the ring is reduced and tightened. [0007] At this time, the side surface of the belt-shaped member of the hose band that comes into contact with the member is coated with dry lubricant and is therefore slippery, and the side of the hose band that is tightened has little frictional resistance with the member. Tightening does not cause wrinkles in the member. Chemical conversion coating treatment improves the adhesion of dry lubricating oil. [0008]

[Embodiment] Hereinafter, the present invention will be described in detail with reference to the embodiment shown in FIGS. The belt-shaped member 2 is rolled into a ring shape and wound around the hose 10, and the open ends of the belt-shaped member 2 are connected with a tightening member 3 as shown in FIG.
The tightening provided on the tightening member 3 is to plastically deform the ear portion 4 using a jig as shown in FIG. 4, thereby reducing the ring diameter and tightening the hose 10. [0009] Both ends of the strip member 2 are open free ends, and as shown in FIGS. 1 and 2, one end corresponds to the convex portion 2a and the other end corresponds to the convex portion 2a. They are formed in the recess 2b, and when tightening, they fit into each other and tighten as shown in FIG. The inner surface of this band-shaped member 2 (when rolled into a ring shape and wrapped around the hose 10, the hose 1
A chemical conversion coating treatment 5 is applied to the side (2c) that contacts the 0 (side) 2c as shown in FIG. [00101 This chemical conversion coating treatment 5 is performed by a method such as par-boiling, bonderite, or black coating, and its purpose is to prevent metal corrosion and to improve the adhesion of the paint as a base for painting. [00111 Furthermore, after the chemical conversion coating treatment 5 has been applied, a dry lubricating oil 6 is applied as shown in FIG. This dry lubricating oil 6 may include a mold release agent. The reason why a dry lubricant is used here is because a wet lubricant such as grease will become sticky during work and will not stick to the lubricant. In addition, since the inner surface 2C of the strip member 2 has been subjected to the chemical conversion coating treatment 5 and is coated with the dry lubricant 6, the dry lubricant 6 has good adhesion and adheres well. Incidentally, although the above-mentioned embodiments have been described with respect to the case where a chemical conversion coating treatment is applied, it goes without saying that the dry lubricating oil may be directly applied without a chemical conversion coating treatment in the present invention. [0012] When such a band-like member 2 is used as a member to be tightened, such as a hose 10, for example, as shown in FIG.
The open ends of the clamping member 3 are connected by spot welding 7 or the like, and the clamping member 3 is tightened by plastically deforming the ear part 4 using a jig as shown in FIG. When the ring diameter is reduced and the hose 10 is tightened, since the dry lubricating oil 6 is applied to the inner surface of the strip member 2 (the surface in contact with the hose), it is easy to slip and there is little frictional resistance with the hose 10. As shown in FIG. 4, the hose 10 can be tightened without wrinkles. Therefore, liquid tightness can be maintained well. [0013] It goes without saying that the present invention may be applied to a hose band composed only of a band-like member as shown in FIG. [0014]

Effects of the Invention As described above, according to the present invention, when a belt-like member is tightened, dry lubricant is applied to the side surface in contact with the member, so that a hose or the like that is tightened easily slips due to frictional resistance with the member. The hose can be tightened without causing wrinkles, and liquid tightness is well maintained.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a band-shaped member subjected to chemical conversion coating treatment.

FIG. 2 is a plan view of a belt-shaped member with dry lubricating oil applied onto the surface of the chemical conversion treatment target.

FIG. 3 is a sectional view of the state where it is attached to a hose.

FIG. 4 is a cross-sectional view of the hose in a tightened state.

FIG. 5 is a partial plan view showing the fitted state of the tip of the band member.

FIG. 6 is a sectional view showing a conventional hose band.

FIG. 7 is a sectional view showing how a conventional hose band is tightened.

FIG. 8 is a sectional view showing another conventional example.

[Explanation of symbols]

1 Hose band 2 Band-shaped member 3 Tightening member 4 Tighten at the ears 5 Chemical conversion coating treatment 6 Dry lubricant

[Figure 6]

Claims (2)

[Claims] 1. A hose band that is used by wrapping a metal band-like member around a member to be tightened, characterized in that at least a side surface of the band-like member that comes into contact with the member to be tightened is coated with dry lubricating oil. horse band. 2. A hose band in which a metal band member is used by wrapping it around a member to be tightened, wherein at least a side surface of the band member that contacts the member to be tightened is coated with a drying lubricating oil treated with a chemical conversion coating. A hose band characterized by: