KR20160132549A - Dual directional spring being able to adjust length - Google Patents

Dual directional spring being able to adjust length Download PDF

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Publication number
KR20160132549A
KR20160132549A KR1020150065195A KR20150065195A KR20160132549A KR 20160132549 A KR20160132549 A KR 20160132549A KR 1020150065195 A KR1020150065195 A KR 1020150065195A KR 20150065195 A KR20150065195 A KR 20150065195A KR 20160132549 A KR20160132549 A KR 20160132549A
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KR
South Korea
Prior art keywords
length
length adjusting
present
fixing nut
elastic
Prior art date
Application number
KR1020150065195A
Other languages
Korean (ko)
Inventor
최종욱
Original Assignee
(주) 마운틴캠핑
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 (주) 마운틴캠핑 filed Critical (주) 마운틴캠핑
Priority to KR1020150065195A priority Critical patent/KR20160132549A/en
Publication of KR20160132549A publication Critical patent/KR20160132549A/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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/041—Wound springs with means for modifying the spring characteristics
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/12—Attachments or mountings
    • F16F1/121—Attachments or mountings adjustable, e.g. to modify spring characteristics

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)

Abstract

The present invention relates to a length-adjustable bidirectional tension spring. More specifically, the spring includes: an elastic unit which is formed by winding a coil spirally; a fixing nut unit which is installed and fixed to the inside of the both sides of the elastic unit; a first length adjustment unit which is screwed to one side of the fixing nut unit to be movable up and down and has a cap, a washer, and a length adjusting nut in the lower part; and a second length adjustment unit which is screwed to the other side of the fixing nut unit to be movable up and down and has a cap, a washer, and a length adjusting nut in the lower part. In the lower part of each of the first and the second length adjustment unit, a head is formed, wherein a rotational ring unit is rotationally coupled to the head. According to the present invention, by adjusting the length, the present invention can change the elasticity and improve the compatibility of the tension spring.

Description

DUAL DIRECTIONAL SPRING BEING ABLE TO ADJUST LENGTH

More particularly, the present invention relates to a bi-directional tension spring capable of freely adjusting the length by inserting a regulating portion into the elastic body so as to be movable up and down and mounting the loop in both directions of the regulating portion .

A conventional mechanical spring device is a mechanical element that absorbs and accumulates energy by utilizing elastic deformation of an object to effect buffering or the like. Once formed, the elasticity of the spring imparts a physical effect such as an inferiority, By having a fixed elasticity, it exerts an external pressure and a fixed repulsive force by relaxation.

In the case of the conventional unidirectional coil spring, mechanical energy is stored unidirectionally with respect to external relaxation and compressive force, so that the mechanical length of compression and relaxation is short and only a single direction of mechanical energy can be stored. Therefore, a change in mechanical length and a bi-directional double spring structure are required.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a method and an apparatus for adjusting the length of an elastic member, which can be freely adjusted by screwing a first length adjuster and a second length adjuster so as to be movable up and down, And a bi-directional tension spring capable of adjusting the length.

According to an aspect of the present invention, there is provided a bi-directional tension spring including: an elastic part formed by winding a coil spirally; A fixing nut portion fixedly installed on both inner ends of the elastic portion; A first length adjuster screwed to one side of the fixing nut so as to be movable up and down and having a cap, a washer, and a length adjusting nut at a lower end; And a second length adjuster screwed to the other side of the fixing nut so as to be vertically movable and having a cap, a washer, and a length adjusting nut at a lower end thereof, wherein each of the first length adjuster and the second length adjuster And a rotation ring part having a head at a lower end of the part and having the head rotatably coupled thereto.

The bi-directional tension spring according to the present invention may further include a circular ring inserted between the coils so that the fixing nut does not come off the elastic portion.

The bi-directional tension spring according to the present invention may have a bar-like shape, and the first and second length adjusters may have threads formed along the longitudinal direction on the outer surface.

The bi-directional tension spring according to the present invention may be screwed together with the inner circumferential surface of the length adjusting nut and the outer circumferential surface of the first length adjusting portion or the outer circumferential surface of the second length adjusting portion.

As described above, according to the bi-directional tension spring of the present invention, the length of the bi-directional tension spring can be adjusted by adjusting the length of the bi-directional tension spring, and the compatibility of the tension spring can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a bi-directional tension spring capable of adjusting a length according to a preferred embodiment of the present invention;
2 and 3 show an elastic part according to the present invention,
4 is an assembled state diagram of the first length adjuster according to the present invention,
5 is an assembled state diagram of a second length adjuster according to the present invention,
Figure 6 is a perspective view of a rotating annulus according to the present invention, and
FIG. 7 is a perspective view showing a partially assembled state of a bi-directional tension spring capable of adjusting the length according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains.

First, a bi-directional tension spring capable of adjusting a length according to a preferred embodiment of the present invention will be described with reference to FIGS. 1 to 6. FIG.

FIG. 1 is a perspective view showing a bi-directional tension spring capable of adjusting a length according to a preferred embodiment of the present invention, FIGS. 2 and 3 are views showing an elastic part according to the present invention, FIG. 5 is an assembly view of a second length adjuster according to the present invention, and FIG. 6 is a perspective view of a rotation claw according to an embodiment of the present invention.

As shown in FIGS. 1 to 6, the length-adjustable bi-directional tension spring according to the present invention includes an elastic portion 10, a fixing nut portion 20, a first length adjusting portion 30, a second length adjusting portion 40 and a rotating annular portion 50. [

Referring to FIGS. 2 and 3, the elastic portion 10 is a tension spring that is made by winding a coil in a spiral shape in a cylindrical shape and has elasticity to move adjacent coils toward each other.

Further, a fixing nut part 20 to be engaged with the elastic part 10 is provided.

The fixing nut portion 20 is provided at two inner sides of both ends of the elastic portion 10 and is formed with a helical hole 20a along the circumference of the inner circumferential surface thereof, It is preferable that it is formed in a fitting manner. Further, a circular ring 22 is provided between the coils so that the fixing nut portion 20 does not come off the elastic portion 10. When the fixing nut portion 20 is made of a metal material, it can be joined to the elastic portion 10 by welding or integrally formed by casting from the beginning without the circular ring 22.

4 and 5, the first length adjuster 30 and the second length adjuster 40 are formed in a bar shape and include threads 30a and 40a on the outer circumferential surface thereof, 30b, and 40b. Here, the threads 30a and 40a are to be screwed into the threaded hole 20a of the fixing nut 20. At this time, the fixing nut portion 20 serves as a guide to be moved up and down by the rotation of the first length adjusting portion 30 or the second length adjusting portion 40. Therefore, the protruding length of the tension spring is adjusted by releasing or tightening the first length adjuster 30 or the second length adjuster 40.

Caps 32 and 42, washers 34 and 44, and length adjusting nuts 36 and 46 are provided at the lower ends of the first and second length adjusting portions 30 and 40, respectively.

The cap (32, 42) is configured to cover one end of the elastic part (10) and cover it. Washers 34 and 44 are provided between the caps 32 and 42 and the length adjusting nuts 36 and 46 to closely contact the caps 32 and 42 with the length adjusting nuts 36 and 46.

The length adjusting nuts 36 and 46 are formed of hexagonal nuts and have helical holes 36a and 46a formed along the circumference of the inner circumferential surface. Therefore, the length adjusting nuts 36 and 46 prevent the caps 32 and 42 from escaping in the downward direction of the first length adjusting portion 30 or the second length adjusting portion 40. [ In addition, the rotation hook 50 is coupled to the lower ends of the first length adjuster 30 and the second length adjuster 40.

Referring to FIG. 6, the rotation ring 50 has a through-hole 50b having a cylindrical shape penetrating through the inside thereof in both directions. The first length adjusting portion 30 and the second length The engaging protrusions 50a are formed to prevent the heads 30b and 40b of the regulating portion 40 from being pulled out. The heads 30b and 40b are preferably formed in a rectangular shape as shown in FIG. A circular fastening hole 50c is formed in the rotary hook 50. The circular fastening hole 50c has a circular ring 52 in the form of a closed curve as shown in the figure, It is also possible that it is open. A moving body or a fixing body is connected to the circular ring 52. Here, the circular ring 52 prevents the first length adjuster 30 or the second length adjuster 40 from escaping to the other side.

The elastic portion 10, the fixing nut portion 20, the first length adjusting portion 30 and the second length adjusting portion 40 and the rotating claw portion 50 are made of a metal material, It is preferable that it is formed of a material.

Next, the operation of the length-adjustable bi-directional tension spring according to the present invention will be described.

FIG. 7 is a perspective view illustrating a partially assembled bi-directional tension spring capable of adjusting the length according to the present invention.

First, the fixing nut portion 20 is engaged with both inner ends of the elastic portion 10. At this time, it is preferable that the fixing nut portion 20 is coupled to the elastic portion 10 in an interference fit manner.

The circular holes 52 are formed in the through holes 50b so that the heads 30b and 40b of the first length adjusting portion 30 and the second length adjusting portion 40 are inserted into the rotary hook 50, . The length adjusting nuts 36 and 46 are screwed to the lower ends of the first length adjusting portion 30 and the second length adjusting portion 40 and the washers 34 and 44 and the caps 32 and 42 are inserted in this order .

Then, the first length adjusting portion 30 and the second length adjusting portion 40 are screwed into a screw hole 20a formed on the inner surface of the fixing nut portion 20 to complete assembly.

The bi-directionally bi-directionally tensionable spring according to the present invention having such a configuration can be configured such that the first length adjusting portion 30 or the second length adjusting portion 40 is screwed into the helical hole 20a of the fixing nut portion 20 The first length adjuster 30 or the second length adjuster 40 moves to the inside of the elastic portion 10 and when the first length adjuster 30 or the second length adjuster 40 is rotated in the opposite direction, .

The longer the longer length of the first length adjusting portion 30 or the second length adjusting portion 40 is inserted into the elastic portion 10 of the tension spring as described above, the greater the elastic force of the coil, which causes the actual elastic force, On the contrary, when the protrusion length becomes long, the elastic force is decreased.

More specifically, assuming that the tension springs have the same material and coil diameter and the same winding diameter, their elasticity is proportional to the overall length of the coil. Therefore, when the first length adjuster 30 or the second length adjuster 40 is inserted into the elastic part 10 as described above, the length of the portion coupled to the outer side of the rotary claw 50 becomes short, Can be varied.

Therefore, according to the present invention, it is possible to obtain a required elasticity value by adjusting the actual elastic force.

It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

Description of the Related Art [0002]
10. Elastic part 20. Fixing nut part
20a. Spiral hole 22. Circular ring
30. A first length adjuster 40. A second length adjuster
30a, 40a. The threads 30b, 40b. head
32,42. The caps 34,44. washer
36, 46. Length adjusting nuts 36a, 46a. Spiral hole
50. Swivel hook 50a. Jaw
50b. Through ball 50c. Ring fastening hole
52. Circular ring

Claims (4)

An elastic part (10) formed by spirally winding a coil;
A pair of fixing nut portions 20 fixedly installed on both inner ends of the elastic portion 10;
A first length adjusting portion 30 screwed to the one fixing nut portion 20 so as to be vertically movable and having a cap 32, a washer 34 and a length adjusting nut 36 at a lower end thereof;
A second length adjusting portion 40 screwed to the other fixing nut portion 20 so as to be vertically movable and having a cap 42, a washer 44 and a length adjusting nut 46 at a lower end thereof; ≪ / RTI &
The heads 30b and 40b are provided at the lower ends of the first length adjuster 30 and the second length adjuster 40 and the rotary hooks 30b and 40b, 50). ≪ / RTI >
The method according to claim 1,
Wherein the fixing nut portion (20) further comprises a circular ring (22) sandwiched between the coils so as not to be separated from the elastic portion (10). The method according to claim 1,
Wherein the first length adjuster (30) and the second length adjuster (40) are formed in a rod shape, and threads (30a, 40a) are formed along the longitudinal direction on the outer circumferential surface. spring. The method according to claim 2 or 3,
Wherein the inner circumferential surface of the length adjusting nuts (36, 46) and the outer circumferential surface of the first length adjusting portion (30) or the outer circumferential surface of the second length adjusting portion (40) are screwed to each other. .
KR1020150065195A 2015-05-11 2015-05-11 Dual directional spring being able to adjust length KR20160132549A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150065195A KR20160132549A (en) 2015-05-11 2015-05-11 Dual directional spring being able to adjust length

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150065195A KR20160132549A (en) 2015-05-11 2015-05-11 Dual directional spring being able to adjust length

Publications (1)

Publication Number Publication Date
KR20160132549A true KR20160132549A (en) 2016-11-21

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Application Number Title Priority Date Filing Date
KR1020150065195A KR20160132549A (en) 2015-05-11 2015-05-11 Dual directional spring being able to adjust length

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108425969A (en) * 2018-05-07 2018-08-21 浙江武义张氏包装实业有限公司 Stretcher in tension control structure
KR20230087777A (en) * 2021-12-10 2023-06-19 장현실 Bidirectional swivel type spring band for traffic informaion board

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108425969A (en) * 2018-05-07 2018-08-21 浙江武义张氏包装实业有限公司 Stretcher in tension control structure
KR20230087777A (en) * 2021-12-10 2023-06-19 장현실 Bidirectional swivel type spring band for traffic informaion board

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