KR101649515B1 - Expandable device with spring - Google Patents

Expandable device with spring Download PDF

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Publication number
KR101649515B1
KR101649515B1 KR1020150066217A KR20150066217A KR101649515B1 KR 101649515 B1 KR101649515 B1 KR 101649515B1 KR 1020150066217 A KR1020150066217 A KR 1020150066217A KR 20150066217 A KR20150066217 A KR 20150066217A KR 101649515 B1 KR101649515 B1 KR 101649515B1
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KR
South Korea
Prior art keywords
spring
elastic
elastic portion
guide tube
members
Prior art date
Application number
KR1020150066217A
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Korean (ko)
Inventor
이명천
이영우
이상훈
강윤식
Original Assignee
국방과학연구소
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Priority to KR1020150066217A priority Critical patent/KR101649515B1/en
Application granted granted Critical
Publication of KR101649515B1 publication Critical patent/KR101649515B1/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
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
    • 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

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

Abstract

The present invention provides an expandable device which comprises: an elastic unit arranged in one direction, and formed to be provided with an elastic force; a first member arranged at one end of the elastic unit; and a second member arranged in the other end of the elastic unit, and formed for a relative distance with the first member to be adjusted in the one direction. Moreover, the elastic unit is formed to receive a compressive force by relative distance adjustment of the first and the second member, and in the inside of the elastic unit, an electric wire can be arranged in the one direction.

Description

EXPANDABLE DEVICE WITH SPRING [0002]

The present invention relates to a length extension device that uses multiple springs to increase lift efficiency and to extend the length by the required height.

A length extension device such as a telescoping mast is a device for mounting an application device, for example, a transmission / reception antenna of a broadcast relay vehicle, a camera for photographing, or an observing device at the uppermost stage and freely raising or lowering it.

In addition, the length extension device is used for military purposes, and a communication device such as a surveillance sensor such as a video camera or a communication device such as an antenna is mounted on the uppermost stage and is extended vertically to a necessary height, thereby widening observation range or improving communication performance do.

Since the length expanding device is mounted on a moving vehicle or the like, it is required to have a rigid structure so that it can be operated even during start-up and is light and free from shaking.

However, there is a system such as a hydraulic, pneumatic or belt type which is generally used in the above-mentioned length expanding device. Such an expanding device has disadvantages such as a hydraulic pressure, a pneumatic generator and a ball screw in a cylinder, . In addition, since the length expanding device requires a plurality of rollers and a belt therein, there is a problem that the cable of the sensing sensor mounted on the upper end is exposed to the outside. Korean Patent Registration No. 10-1372331, which is designed to improve this, has a length extension device, but it has a structural problem that it is difficult to ascend when a heavy duty device is mounted on the upper part.

SUMMARY OF THE INVENTION The present invention is directed to providing a length expanding device capable of facilitating a synergistic effect by applying a spring capable of supporting the weight of various mission devices installed in the upper portion of the length expanding device.

According to an aspect of the present invention, there is provided a length expanding device including: an elastic portion disposed in one direction to receive an elastic force; a first member disposed at one end of the elastic portion; And a second member disposed at the other end of the elastic portion and adapted to adjust a relative distance with respect to the first member in the one direction, wherein the elastic portion is provided with a compression force by a relative distance adjustment of the first and second members And the wire is arranged inside the elastic portion in the one direction.

According to one embodiment of the present invention, the elastic portion includes a first spring, one end of which is coupled to the first member, and a second spring, which is installed to be accommodated in the inside of the first spring, And a second spring to which the other end is coupled to the second member.

Wherein a first guide tube is provided between the first spring and the second spring in contact with an end of the first spring and the second spring, A first flange portion extending inwardly from an inner periphery of one end of the guide tube and a second flange portion extending outward from an outer periphery of the other end portion of the first guide tube so as to contact the end portion of the second spring, have.

Wherein the first member has an inner tube extending along the inner circumference of the first spring in the one direction and the second member has an outer tube extending along the outer circumference of the second spring in the one direction can do.

The elastic portion further includes a third spring provided between the first and second springs and arranged to receive the outer circumference of the first spring and received by the second spring at the inner circumference of the second spring .

A second guide tube contacting the one end of the first spring and the third spring is provided between the first spring and the third spring, and between the second spring and the third spring, And a third guide tube contacting the other end of the third spring.

According to another aspect of the present invention, the elastic portion is provided with a length adjusting portion fixed to the first and second members so as to adjust the length between the first and second members, The adjustment portion includes a plurality of tubes, and the plurality of tubes are accommodated in one of the tubes adjacent to each other.

According to another embodiment of the present invention, the elastic portion is formed of a wave spring.

The inner guide tube may be coupled to one point of the inner periphery of the elastic portion, and the outer guide tube may be coupled to one point of the outer periphery of the elastic portion.

The length extension device of the present invention is characterized in that in the lengthwise extension device composed of a hollow shaft, various various springs and guide tubes capable of supporting the entire weight or a part of the weight of the upper part of the length- Respectively. Further, the spring has an inner space, and the electric wire can be disposed.

As a result, the length expanding device is easy to ascend and reduces the driving torque load of the driving motor for lifting the length extending device. In addition, the length extending device reduces the load of the driving device such as the speed reducer, thereby reducing the overall power consumption, improving the reliability and durability of the equipment, and making the equipment lighter.

1 is a conceptual diagram showing a plan view and an operating state of a length expanding apparatus according to a first embodiment of the present invention;
2 is a conceptual diagram showing a plan view and an operating state of a length expanding apparatus according to a second embodiment of the present invention;
3 is a conceptual diagram showing a plan view and an operating state of a length expanding apparatus according to a third embodiment of the present invention;
4 is a conceptual diagram showing a top view and an operating state of a length expanding apparatus according to a fourth embodiment of the present invention;
5 is a conceptual diagram showing a plan view and an operating state of a length expanding apparatus according to a fifth embodiment of the present invention;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

In the present specification, the same or similar reference numerals are given to different embodiments in the same or similar configurations. As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The length extension devices 100, 200, 300, 400, and 500 of the present invention include the first to fifth embodiments. Hereinafter, with reference to the drawings, the first to fifth embodiments of the length-extending devices 100, 200, 300, 400, and 500 of the present invention will be described in order. The description of the first to fifth embodiments may be duplicated or omitted from the description of the same configuration, which will be replaced with the previously described portions.

1 to 5, the distance between the first and second members 120 and 130 of the length-extending devices 100, 200, 300, 400, and 500 is minimized at the lower left, middle, A view showing a state in which the distance between the first and second members 120 and 130 is spaced by a certain distance and a view for maintaining a maximum distance between the first and second members 120 and 130 are respectively shown.

1 is a conceptual diagram showing a plan view and an operating state of a length-extending device 100 according to a first embodiment of the present invention.

Referring to FIG. 1, a length extending apparatus 100 according to a first embodiment of the present invention includes an elastic portion 110, first and second members 120 and 130.

The elastic portion 110 is disposed in a 'one direction' that is the direction in which the length-extending device 100 of the present invention is adjusted in length, and is provided with elasticity by adjusting the relative distance to the first and second members 120 and 130. When the relative distance between the first and second members 120, 130 is increased by the relative distance adjustment between the first and second members 120, 130, the elastic portion 110 is made to receive a relatively weak compressive force . On the other hand, when the relative distance between the first and second members 120 and 130 is approximated by the relative distance adjustment between the first and second members 120 and 130, the elastic part 110 has a relatively strong compressive force .

A distribution passage is formed in the inner space 116 of the elastic part 110 so that electric wires passing in one direction can be disposed.

The elastic portion 110 may be formed of, for example, a compression spring.

The first and second members 120 and 130 are disposed at both ends of the elastic portion 110 so that a wire passing through the inside of the elastic portion 110 is extended and extended through the first and second members 120 and 130 And can be made to come out of the device 100. The first and second members 120 and 130 are coupled to both ends of the elastic portion 110. For example, the first and second members 120 and 130 can be understood as a flat tube shape, a token shape, or the like, and a hollow shape at the center thereof. An upper part of the left side of Fig. 1 shows an example of a shape in which the middle part is empty.

1 shows an example in which the elastic portion 110 is compressed and then decompressed by the relative distance adjustment of the first and second members 120 and 130. [ The lower left figure shows an example in which the relative distance between the first and second members 120 and 130 is getting closer so that the elastic part 110 is subjected to a relatively strong compressive force and the right figure shows the first and second members 120 130 are spaced apart from each other and the elastic portion 110 receives a relatively weak compressive force.

FIG. 2 is a conceptual diagram showing a plan view and an operating state of a length expanding apparatus 200 according to a second embodiment of the present invention.

Referring to FIG. 2, the length expanding apparatus 200 according to the second embodiment of the present invention includes an elastic portion 210, first and second members 220 and 230, I will replace the example part.

The elastic portion 210 of the length-extending device 200 according to the second embodiment includes the first and second springs 213 and 215. An example in which the first spring 213 is disposed on the upper side and is accommodated by the second spring 215 disposed on the relatively lower side is shown in FIG.

One end of the first spring 213 is coupled to the first member 220 and the other end of the second spring 215 located on the opposite side of the first spring 213 is connected to the second member 230 . The first member 220 has an inner tube 225 extending along the inner periphery of the first spring 213 in the direction in which the first and second spring 213 and 215 are disposed, The member 230 has an outer tube 235 extending along the outer periphery of the second spring 215 in the direction in which the first and second springs 213 and 215 are disposed.

A first guide tube 240 for guiding the first and second springs 213 and 215 is provided between the first and second springs 213 and 215. First and second flange portions 243 and 247 are formed at both ends of the first guide tube 240. The first flange portion 243 extends inward from the inner periphery of one end of the first guide tube 240 and the second flange portion 247 extends outward from the outer periphery of the other end portion of the first guide tube 240 do.

2 shows a section of the first guide tube 240 in a cylindrical shape and includes a first flange 243 contacting the lower end of the first spring 213 and a second flange 243 contacting the lower end of the second spring 215. [ A second flange is also shown.

FIG. 2 shows an example in which the elastic part 210 is compressed by the relative distance adjustment of the first and second members 220 and 230, and then the compression is released. The lower left figure shows an example in which the relative distance of the first and second members 220 and 230 is getting closer so that the elastic part 210 receives a relatively strong compressive force and the right figure shows the first and second members 220 230 are away from each other and the elastic portion 210 receives a relatively weak compressive force.

An example of how the relative distance between the first and second members 220 and 230 approaches is shown in the lower left figure. The first and second springs 213 and 215 may be appropriately guided and the relative distance of the first and second members 220 and 230 may be made shorter.

The first and second springs 213 and 215 are guided by the inner and outer tubes 225 and 235 and the guide tube 240 when the height of the lengthwise expansion device 200 is adjusted It is possible to stably adjust the height.

Thus, the relative distance of the length-extending device 200 is adjusted by the first and second members 220 and 230 and the elastic portion 210.

Meanwhile, a distribution passage is formed in the internal space 216 of the elastic part 210, in which electric wires passing in one direction can be disposed.

3 is a conceptual diagram showing a plan view and an operating state of the length expanding apparatus 300 according to the third embodiment of the present invention.

The length extension device 300 according to the third embodiment includes the elastic portion 310 and the first and second members 320 and 330 and the elastic portion 310 includes the first and second springs 313 and 315 ). This has been described above in the description of the first and second embodiments.

Referring to FIG. 3, the length extending device 300 according to the third embodiment of the present invention may further include a third spring 318 installed between the first and second springs 313 and 315. The third spring 318 is arranged to receive the outer circumference of the first spring 313 and is made to be received by the second spring 315 at the inner circumference of the second spring 315. [

Further, second and third guide tubes 344 and 346 may be provided between the first to third springs 313, 315 and 318.

The second guide tube 344 is configured to contact the ends of the first and third springs 313 and 318 between the first spring 313 and the third spring 318. The second and third guide tubes 344 and 346 may have the same shape as the first guide tube 240 described above and the first and second flange portions 243 and 247 of the first guide tube 240 may have the same shape, The third and fourth flange portions 343a and 347a in the second guide tube 344 and the fifth and sixth flange portions 343b and 347b in the third guide tube 346 do.

3, the third flange portion 343a extends inward from the inner periphery of one end of the second guide tube 344 to abut the lower end of the first spring 313, and the fourth flange portion 347a extend outward from the outer periphery of the other end of the second guide tube 344 so as to come into contact with the upper end of the third spring 318. [

On the other hand, the fifth flange portion 343b of the third guide tube 346 extends inward from the inner periphery of the lower end of the third guide tube 346 so as to contact the lower end of the third spring 318, 6, the flange portion 347b extends outward from the outer periphery of the upper end of the third guide tube 346 so as to come into contact with the upper end of the second spring 315. As shown in Fig.

As the relative distance between the first and second members 320 and 330 is adjusted, the first to third springs 313, 315, and 318 are compressed and then uncompressed. In this case, The three guide tubes 344 and 346 guide the first to third springs 313, 315 and 318.

On the other hand, the fact that the electric wires are arranged in one direction in the inner space 316 of the first to third springs 313, 315 and 318 has been described in the first embodiment.

4 is a conceptual diagram showing a plan view and an operating state of a length expanding apparatus 400 according to a fourth embodiment of the present invention.

Referring to FIG. 4, the length expanding apparatus 400 according to the fourth embodiment is further provided with a length adjusting unit 450 in the length expanding apparatus 400 according to the first embodiment. The length adjuster 450 is fixed to both the first and second members 420 and 430 so that the length between the first and second members 420 and 430 is adjusted.

The length adjuster 450 includes a plurality of tubes 455, each of which is configured to be received in one of the adjacent tubes. 4 shows an example in which a plurality of tubes are accommodated in the lower tube, respectively.

When the second member 430 moves closer to the first member 420 and the elastic part 410 is compressed, the tubes 455 partially move toward the first member 420, And is accommodated in the tube 455. Referring to the center view of FIG. 4, a structure is formed in which each of the tubes 455 is partially inserted into another tube 455 arranged on the lower side. Further, when the second member 430 is moved away from the first member 420 so that the elastic portion 410 is subjected to a relatively weak compressive force, the plurality of tubes 455 are accommodated for a relatively small length do.

4 shows an example in which the distance between the first and second members 420 and 430 is relatively short, in which the tubes 455 of the length adjuster 450 are spaced apart from the adjacent tubes And a maximum accommodating structure are shown. 4 shows an example in which the distance between the first and second members 420 and 430 is relatively large, in which the tubes 455 of the length adjuster 450 are connected to adjacent tubes And a maximum accommodating structure are shown.

When the elastic part 410 receives a relatively weak compressive force, an end portion of each tube 455 is prevented from coming off so as to prevent the plurality of tubes 455 from being separated from each other. .

On the other hand, electric wires are arranged in one direction in the inner space 416 of the length adjusting part 450.

5 is a conceptual diagram showing a plan view and an operating state of a length expanding apparatus 500 according to a fifth embodiment of the present invention.

Referring to FIG. 5, the elastic portion 510 of the length-extending device 500 according to the fifth embodiment may be a wave spring. Inner and outer guide tubes 551 and 555 are coupled to the inside and the outside of the elastic part 510, respectively. For example, the inner and outer guide tubes 551 and 555 may be welded to one or more points 557 on the inner and outer sides of the elastic portion 510, which are represented by small circles in FIG. Warpage of the elastic portion 510 can be prevented when the distance between the first and second members 520 and 530 is adjusted by the inner and outer guide tubes 551 and 555. [

The inner and outer guide tubes 551 and 555 may have the same length in one direction. In this case, as shown in the lower left portion of FIG. 5, any one of the inner and outer guide tubes 551 and 555 The relative distance between the first and second members 520 and 530 may be minimized as compared with the case where one length is long.

The elastic portion 510 of the fifth embodiment is formed as a wave spring, and thus has a larger compression contrast expansion than an elastic portion having a common coil spring.

The length expanding apparatus described above is not limited to the configuration and the method of the embodiments described above, but the embodiments may be configured by selectively combining all or a part of each embodiment so that various modifications can be made.

In addition, the detailed description of the invention described above is a concrete example for the inventors of the present invention to carry out the invention as an embodiment of the present invention, and the applicant's right is not limited thereto. The applicant's rights are set forth in the claims set forth below.

Claims (9)

An elastic part arranged in one direction to receive an elastic force;
A first member disposed at one end of the elastic portion; And
And a second member disposed at the other end of the elastic portion and adapted to adjust a relative distance with respect to the first member in the one direction,
Wherein the resilient portion is configured to receive a compressive force by a relative distance adjustment of the first and second members, and a wire is arranged in the elastic portion in the one direction,
The elastic portion
A first spring having one end coupled to the first member; And
And a second spring which is installed inside the first spring so as to be accommodated therein and whose other end located opposite to the first spring is coupled to the second member,
Wherein a first guide tube is provided between the first spring and the second spring to contact the ends of the first spring and the second spring,
In the first guide tube,
A first flange portion extending inward from an inner periphery of one end of the first guide tube so as to contact an end portion of the first spring; And
A second flange portion extending outwardly from an outer periphery of the other end portion of the first guide tube so as to be in contact with an end portion of the second spring,
Wherein the first member has an inner tube extending along the inner periphery of the first spring in the one direction,
And the second member has an outer tube extending along the outer periphery of the second spring in the one direction. delete delete delete The method according to claim 1,
The elastic portion
And a third spring provided between the first and second springs and arranged to receive the outer circumference of the first spring and received by the second spring at the inner circumference of the second spring, Extension device. 6. The method of claim 5,
A second guide tube is provided between the first spring and the third spring to contact one end of the first spring and the third spring,
And a third guide tube is provided between the second spring and the third spring to contact one end of the second spring and the other end of the third spring. An elastic part arranged in one direction to receive an elastic force;
A first member disposed at one end of the elastic portion; And
And a second member disposed at the other end of the elastic portion and adapted to adjust a relative distance with respect to the first member in the one direction,
Wherein the resilient portion is configured to receive a compressive force by a relative distance adjustment of the first and second members,
Wherein the elastic portion is disposed inside the elastic portion so that electric wires can be arranged in the one direction,
Wherein the elastic portion is provided with a length adjusting portion which is fixed to both the first and second members so as to adjust the length between the first and second members,
The length adjusting unit may include a plurality of tubes each having a circular shape, and each of the tubes may be inserted into or withdrawn from one of adjacent tubes according to the magnitude of a compressive force acting on the elastic part, And adjusts the distance between the first member and the second member. An elastic part made of a wave spring and arranged in one direction to receive an elastic force;
A first member disposed at one end of the elastic portion; And
And a second member disposed at the other end of the elastic portion and adapted to adjust a relative distance with respect to the first member in the one direction,
The resilient part is made to undergo a compressive force by the relative distance adjustment of the first and second members,
Wherein the resilient portion is provided with an electric wire arranged in the one direction,
Wherein an inner guide tube is coupled to one point of an inner periphery of the elastic portion, and an outer guide tube is coupled to a point of an outer periphery of the elastic portion. delete
KR1020150066217A 2015-05-12 2015-05-12 Expandable device with spring KR101649515B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200074685A (en) * 2018-12-17 2020-06-25 주식회사 카펙발레오 Torque convertor for vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0853195A (en) * 1994-08-10 1996-02-27 Nasu Toa Kk Valve in container for beverage
JP2002358818A (en) * 2001-06-01 2002-12-13 Sanyo Kiki Co Ltd Electric equipment elevating device
JP2009192035A (en) * 2008-02-18 2009-08-27 Showa Hatsujo Seisakusho:Kk Spring characteristic adjustment method of compression type coil spring, and spring characteristic adjustment type compression energizing body

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0853195A (en) * 1994-08-10 1996-02-27 Nasu Toa Kk Valve in container for beverage
JP2002358818A (en) * 2001-06-01 2002-12-13 Sanyo Kiki Co Ltd Electric equipment elevating device
JP2009192035A (en) * 2008-02-18 2009-08-27 Showa Hatsujo Seisakusho:Kk Spring characteristic adjustment method of compression type coil spring, and spring characteristic adjustment type compression energizing body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200074685A (en) * 2018-12-17 2020-06-25 주식회사 카펙발레오 Torque convertor for vehicle
KR102594854B1 (en) * 2018-12-17 2023-10-26 주식회사 카펙발레오 Torque convertor for vehicle

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