KR101754702B1 - Hose clamp having band spring - Google Patents

Hose clamp having band spring Download PDF

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Publication number
KR101754702B1
KR101754702B1 KR1020150124641A KR20150124641A KR101754702B1 KR 101754702 B1 KR101754702 B1 KR 101754702B1 KR 1020150124641 A KR1020150124641 A KR 1020150124641A KR 20150124641 A KR20150124641 A KR 20150124641A KR 101754702 B1 KR101754702 B1 KR 101754702B1
Authority
KR
South Korea
Prior art keywords
band
pair
hose
support surface
ring
Prior art date
Application number
KR1020150124641A
Other languages
Korean (ko)
Other versions
KR20170027975A (en
Inventor
조시현
이기건
Original Assignee
유신정밀공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 유신정밀공업 주식회사 filed Critical 유신정밀공업 주식회사
Priority to KR1020150124641A priority Critical patent/KR101754702B1/en
Publication of KR20170027975A publication Critical patent/KR20170027975A/en
Application granted granted Critical
Publication of KR101754702B1 publication Critical patent/KR101754702B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/02—Hose-clips
    • F16L33/08—Hose-clips in which a worm coacts with a part of the hose-encircling member that is toothed like a worm-wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
    • F16B2/065—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using screw-thread elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
    • F16B2/08—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using bands
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/24—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with parts screwed directly on or into the hose

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a hose clamp for fastening a hose to a hose or the like, and includes a band forming a ring in a state where both end portions are overlapped with each other, and a locking adjusting portion fastened to an overlapping end portion of the band, An arc strap disposed inside the band forming the ring and having a predetermined length in the circumferential direction and facing concave toward the center; And a pair of resilient bending portions extending from both ends of the support surface portion so as to be symmetrical to each other and pressing the arc strap inward through the support surface portion, And a band spring extending from the ends of the pair of elastic bending arms so as to be symmetrical to each other and having a pair of fixed ends fixed to the bands. This makes it possible to maintain the fastening force even when a phenomenon that the hose is temporarily loosened due to hardening or aging of the hose at the fastening portion of the hose clamp once fastened.

Description

[0001] HOSE CLAMP HAVING BAND SPRING [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a hose clamp to be fastened to a connecting portion or the like to fasten a hose, and more particularly, to a hose clamp having a band spring that allows a fastened state of a fastened portion to be maintained continuously.

1, the conventional hose clamp 1 has a structure in which both end portions of a band 2 are fastened to a locking regulating portion 3 and a hose (not shown) The fastening force to the hose can be maintained by tightening the band 2 by turning the screw 4 on the adjustment portion 3 side.

However, according to the conventional hose clamp 1, there is a problem that the elasticity of the tightened hose is lowered with the lapse of time, and the tightened band 2 is loosened.

In this case, it is inconvenient to tighten the screw 4 on the locking adjusting portion 3 again, and when the hose clamp 1 is fastened to a number of places such as a machine or an automobile, There is a problem that it is close to impossible.

[Prior Art Literature]

Japanese Patent Application Laid-Open No. 10-2008-0045692 (published on May 23, 2008)

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a hose clamp capable of continuously maintaining a fastening force even when a phenomenon of loosening due to hardening or aging of the hose occurs at the fastening portion of the hose clamp once fastened.

In order to achieve the above object, the present invention provides a hose clamp comprising a band forming a ring in which both end portions are overlapped, and a locking regulating portion fastened to an overlapping end portion of the band to change a diameter of the ring, An arc strap having a predetermined length and disposed inside the band forming the ring and facing concave toward the center; And a pair of resilient bending portions extending from both ends of the support surface portion so as to be symmetrical to each other and pressing the arc strap inward through the support surface portion, And a band spring extending from the ends of the pair of elastic bending arms so as to be symmetrical to each other and having a pair of fixed ends fixed to the bands, .

Here, the pair of elastic bending arms may extend through the band and extend inward and outward of the band.

The pair of elastic bending arms may include a vertical arm portion extending radially from both ends of the support surface portion and extending through the band and extending inwardly and outwardly of the band, And may have a tangential arm portion bent in an end rotor and extending in a tangential direction to a band forming the ring.

In this case, an opening is formed in the band so that the vertical arm portions of the pair of elastic bending arms symmetrically pass through each other, and the support surface portion is formed by the pair of elastic bending arm portions inside the opening It can be supported so as to be able to move up and down in the radial direction.

As described above, according to the hose clamp according to the present invention, an arc strap is disposed inside the ring-shaped band for accommodating the hose on the inner side, and the band spring is used to tighten the inner hose while elastically pressing the arc strap The hose may still be held in the band by the arc strap which receives the elastic pressing force of the band spring even if the hose is loosened due to the use environment or time lapse.

1 is a perspective view of a hose clamp according to the prior art,
2 is a front view of a hose clamp according to an embodiment of the present invention;
Figure 3 is an enlarged perspective view of the main part of the hose clamp of Figure 2,
Figs. 4A and 4B are views for explaining the action of the hose clamp of Fig. 2, and are schematic views showing a state before and after deformation of the main portion.

2, the hose clamp 10 according to the embodiment of the present invention is configured such that the band 12 forms a ring so that the both end portions 12-1 and 12-2 are overlapped with each other, 13). The locking adjusting portion 13 is a structure for generating a fastening force for the hose accommodated inside by adjusting the diameter of the band 12 by adjusting the screw 14 attached thereto. Such a configuration and operation mechanism are quite different from the conventional art, and thus a detailed description thereof will be omitted.

In particular, the hose clamp 10 according to the embodiment of the present invention is provided with an arc strap 15 disposed inside the band 12 forming the ring and extending in the circumferential direction.

Therefore, the hose (not shown) received inside the band 12, together with other parts of the band 12, are held in contact with the arc strap 15 and tightened. On the other hand, a band spring 19 is elastically pressed inward against the arc strap 15 inside the band 12.

Therefore, the hose (not shown) on the inner side of the band 12 is rotated in the clockwise direction with respect to the one end portion 12-2 with the adjustment of the locking adjustment portion 13 so that the other end portion 12-1 rotates clockwise The overlapping portion gradually increases. In such a case, the arc strap 15 is always brought into contact with the inner hose together with the other portions of the band 12 to apply a coarse input.

2 and 3, the band spring 19 according to the present embodiment is disposed inside the band 12 to be engaged with the central portion of the arc strap 15 by being engaged with the center of the arc strap 15, And has a central support surface portion 19a and extends symmetrically with respect to each other in the circumferential direction of the support surface portion 19a to elastically press the arc strap 15 inward through the support surface portion 19a And an elastic bending arm portion 19-1.

The support surface portion 19a is fixedly coupled to the arc strap 15 by bending and tightening the clip portion 15a protruding from the middle portion of the arc strap 15. [

The band spring 19 is connected to the slits 12b and 12c on the side of the band 12 through a pair of fixed end portions 19d extending from the respective ends of the pair of elastic bending arm portions 19-1 Inserted, and joined together.

Particularly, in this embodiment, the band 12 has an opening 12a formed therethrough corresponding to the central support surface portion 19a of the band spring 19 so that a pair of elastic bending arm portions 19-1 are connected to the band May extend through the inside and outside of the base 12.

The pair of elastic bending arm portions 19-1 extend vertically from the support surface portion 19a on the inner side of the opening 12a, that is, in the radial direction, and pass through the opening 12a to the outside And a tangential arm portion 19c extending in the tangential direction from the outer end portion of the vertical arm portion 19b to the band 12 formed by bending the ring.

As a result, the vertical arm portions 19b of the pair of bending arm portions 19-1 are structured such that they penetrate the inside and outside of the band 12 symmetrically with each other at the inside of the opening 12a, The supporting surface portion 19a and the arc strap 15 coupled thereto are structured to be supported so as to be vertically movable in the radial direction with respect to the opening 12a on the inside of the band 12. [

As described above, according to the hose clamp 10 having the arc strap 15 and the band spring 19, a hose (not shown) is inserted inwardly in the initial state of Fig. 4A and the lock adjusting portion 13 is adjusted The band 12 is tightened so that the arc strap 15 in close contact with the hose 15 and the band 12 gradually approaches the outer band 12 as shown in FIG. 4B , The elastic bending arm portion 19-1 of the band spring 19 is gradually opened due to the pressing of the arc strap 15 in this process.

Therefore, the initial state in which the hose is tightened by the hose clamp 10 is as shown in Fig. 4B.

4B, when the force for pressing the hose clamp 10 side band 12 and the arc strap 15 is lowered and the tightening force is to be loosened due to the lack of elasticity in accordance with the use environment and the passage of time, An elastic restoring force is generated in a direction in which the elastic bending arm portion 19-1 that is worn is caught, so that the arc strap 15 is pressed inward through a central support surface portion 19a extending into the band 12, As a result, the inner hose is exerted as a force to further tighten the hose.

With such a mechanism, it is possible to cover the problem of the tightening force deterioration caused by the elasticity of the hose inside the band 12 falling within a range where the band spring 19 exerts an elastic force to some extent or more.

On the other hand, since the hose clamp 10 described above is only one embodiment for explaining the present invention, it is difficult to understand that the scope of the invention and the technical scope of the present invention are limited to those described above.

The scope of the present invention is defined by the appended claims and their equivalents.

10: Hose Clamp 12: Band
12a: opening 12b, 12c: slit
13: Locking adjustment part 14: Screw
15: arc strap 15a: clip portion
19: Band spring 19a: Support surface
19b: vertical arm portion 19c: tangential arm portion
19d: fixed end portion 19-1: elastic bending arm portion

Claims (4)

A band for forming a ring in a state in which both end portions are overlapped with each other, and a locking adjusting portion which is fastened to the overlapping end portion of the band to change the diameter of the ring,
An arc strap having a predetermined length in the circumferential direction and disposed inside the band forming the ring and facing concave toward the center;
And a pair of resilient bending portions extending from both ends of the support surface portion so as to be symmetrical to each other and pressing the arc strap inward through the support surface portion, Further comprising a band spring having an arm portion and a pair of fixed ends extended from the ends of the pair of elastic bending arm portions so as to be symmetrical to each other and fixed to the band,
Wherein the pair of elastic bending arms extend through the band and extend inwardly and outwardly of the band,
Wherein the pair of elastic bending arms each have a vertical arm portion extending radially from both ends of the support surface portion and extending through the band and extending inwardly and outwardly of the band and an outer end rotor portion And a tangential arm portion bent in a tangential direction to a band forming the ring,
Wherein the bands are formed with openings through which the respective vertical arm portions of the pair of elastic bending arms penetrate symmetrically with each other,
Wherein the support surface portion is supported so as to be able to move in a radial direction by the pair of elastic bending arm portions inside the opening. delete delete delete
KR1020150124641A 2015-09-03 2015-09-03 Hose clamp having band spring KR101754702B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150124641A KR101754702B1 (en) 2015-09-03 2015-09-03 Hose clamp having band spring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150124641A KR101754702B1 (en) 2015-09-03 2015-09-03 Hose clamp having band spring

Publications (2)

Publication Number Publication Date
KR20170027975A KR20170027975A (en) 2017-03-13
KR101754702B1 true KR101754702B1 (en) 2017-07-07

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Application Number Title Priority Date Filing Date
KR1020150124641A KR101754702B1 (en) 2015-09-03 2015-09-03 Hose clamp having band spring

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7026712B2 (en) * 2020-02-14 2022-02-28 新コスモス電機株式会社 Alarm
JP7026711B2 (en) * 2014-07-29 2022-02-28 オランジュ Frame loss management in FD / LPD transition context

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7026711B2 (en) * 2014-07-29 2022-02-28 オランジュ Frame loss management in FD / LPD transition context
JP7026712B2 (en) * 2020-02-14 2022-02-28 新コスモス電機株式会社 Alarm

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E701 Decision to grant or registration of patent right