TWM648634U - Roller blind with adjustable booster spring and adjustment device thereof - Google Patents

Abstract

A roller blind with adjustable power-assisted spring and its adjustment device. The adjustment device includes: an adjustment spring, an adjustment piece and a sleeve; when the other end of a power-assist spring is positioned, by rotating the adjustment piece, the adjustment piece A toggle part pushes a bump of the adjustment spring and a piece of the sleeve, so that the adjustment spring stores an elastic potential energy and stops tightening a shaft, and the sleeve drives the booster spring to twist and change the booster force. The elastic force of the spring; after the adjustment member stops rotating, the block pushes the convex point away from the other convex point, causing the adjustment spring to release the elastic potential energy and re-tighten the shaft, thereby positioning the sleeve . In this way, the elastic force of the booster spring can be adjusted without using additional tools or reserving space for tool operations.

Description

Adjustable power spring roller blind and its adjustment device

The invention relates to a roller blind and its adjusting device, in particular to a roller blind with an adjustable power-assisted spring and its adjusting device.

Traditional up-and-down roller blinds often use a rewinding mechanism containing a spring to roll the curtain. During the process of pulling down the curtain, the spring stores the elastic potential energy, and during the process of retracting the curtain, the spring releases the stored elastic energy. It can assist in driving the rewinding mechanism to retract the curtain fabric, reducing the strength required by the user.

In order to adjust the spring retraction force according to the weight of the curtain, the Republic of China Patent No. M587968 proposed an elastic force adjustment structure, which includes: a shaft including a socket; an operating member including a through hole; and a first elasticity. component; an adjustment and fixation mechanism includes a second elastic component, a control component, a shaft base, a fixed seat and a C-shaped buckle, the control component includes an adjustment part; and a sleeve. And a rolling device for roller blinds using the elastic adjustment structure, further including an outer tube, a movable rotating shaft, a sleeve and two brackets. By operating the adjustment part, the control member drives the rotation of the shaft and changes the first elastic potential energy of the first elastic member, and the change in the second elastic potential energy of the second elastic member drives the reset of the operating member, This achieves the effect that the rolling force of the first elastic member can be adjusted and the adjusted state can be fixed without disassembling the roller of the roller blind.

However, when multiple sets of roller blinds are installed continuously, or the roller blinds are installed close to the wall, there may not be enough space for tools such as a hex wrench to reach into the operating adjustment part, and the entire roller blind must eventually be removed. Full spring retraction force.

Therefore, the inventor provides an adjustment device for a roller blind power spring, which is provided on a roller blind body. The roller blind body includes an adjacent shaft and a power assist spring. The adjustment device for the roller blind power spring includes: an adjustment device. A spring is bundled at one end of the shaft, and two protrusions are formed at both ends of the adjustment spring, which are adjacent to each other and extend away from the shaft respectively; an adjustment piece is provided at one end of the shaft, and the adjustment piece has two dials. a moving part, the protrusions are located between the dialing parts; and a sleeve is sleeved on the adjusting member, the sleeve has a piece located between the protrusions, and one end of the booster spring is combined with the Sleeve; when the other end of the power-assisting spring is positioned, by rotating the adjustment member, one of the toggle parts pushes one of the bumps and the block, so that the adjustment spring stores an elastic potential energy and stops tightening the shaft. rod, and the sleeve drives the booster spring to twist and change the elastic force of the booster spring; after stopping rotating the adjustment member, the block pushes one of the protrusions away from the other protrusion, causing the adjustment spring to release the The elastic potential energy re-tightens the shaft, thereby positioning the sleeve.

The inventor also provides a roller blind with an adjustable power-assisted spring, which includes: a roller blind body with an adjacent shaft and a power-assisted spring; and the adjustment device of the aforementioned roller blind power spring, which is provided on the roller blind body.

Further, the roller blind body includes an outer tube, a cord is wound around the outer tube, and a socket is engaged with the outer tube, and the other end of the power-assisting spring is combined with the socket.

Further, the roller shutter body includes two brackets arranged at both ends of the outer tube.

Furthermore, the adjusting member has an adjacent barrel portion and a ring portion. The barrel portion has an opening and two wall surfaces located on both sides of the opening as the dialing portion. The adjusting spring is accommodated in the barrel portion. The protrusions extend into the opening.

According to the above technical characteristics, the following effects can be preferably achieved:

1. By adjusting the spring and adjusting parts, the elastic force of the power-assisted spring can be adjusted without the need for additional tools or reserved space for tool operation. It can be more widely used in various dense installations and wall installations with roller blinds. places of demand.

2. In addition to being used for rolling corded, cordless, and even top-down roller blinds or curtains made of various materials, it can also be widely used in other places, such as projection screens, rolling doors, and other places where there is a need to adjust the internal spring elasticity.

Based on the above technical features, the main functions of the adjustable power-assisted spring roller blind and its adjustment device of this invention will be clearly demonstrated in the following embodiments.

Please refer to the first to third figures, which illustrate a roller blind with an adjustable power-assisted spring (hereinafter referred to as the roller blind 100) according to an embodiment of the invention, including a roller blind body 1 and an adjustment device for the roller blind power spring (hereinafter referred to as the roller blind 100). Hereinafter referred to as the adjusting device 2), the adjusting device 2 is provided on the roller shutter body 1.

The roller shutter body 1 contains:

A shaft actually has a first shaft 11 and a second shaft 12 that are locked and coupled to each other. The first shaft 11 is generally a square tube, and the second shaft 12 is generally a round tube. The second shaft 12 has a square groove inside that matches the first shaft 11 .

A power-assisting spring 13 is sleeved on the outside of the first shaft 11 .

A set of adapters 14 is sleeved on the outside of the first shaft 11 .

An outer tube 15 is sleeved on the first shaft 11 , the booster spring 13 and the socket 14 , and the outer tube 15 is engaged with the socket 14 .

Two brackets 16 are provided at both ends of the outer tube 15 .

Please refer to the second to fourth figures. The adjustment device 2 includes:

An adjustment spring 21 is bundled with the second shaft 12. Two protrusions 211 are formed at both ends of the adjustment spring 21, adjacent to each other and extending away from the second shaft 12 respectively. In the preferred embodiment of the present invention, the adjusting spring 21 includes three adjacent small springs, and each small spring has two protrusions 211 .

An adjusting member 22 is provided on the second shaft 12. The adjusting member 22 has two dialing parts, and the protruding point 211 is located between the dialing parts.

In more detail, the adjusting member 22 has an adjacent cylindrical portion 221 and a ring portion 222. The cylindrical portion 221 has an opening 223, and two wall surfaces 224 are located at both sides of the opening 223 as the dial. part, the adjustment spring 21 is accommodated in the barrel part 221, and the protrusion 211 extends into the opening 223.

A sleeve 23 is sleeved on the adjusting member 22. The sleeve 23 has a piece 231 located between the protrusions 211. One end of the booster spring 13 is combined with the sleeve 23, and the other end of the booster spring 13 is Combined with the sleeve 14.

Please refer to the first and fifth figures. The roller blind 100 also includes a curtain fabric 17 wound around the outer tube 15 .

In actual implementation, the curtain 17 can be made of various materials, and the roller blind 100 can also be configured as a corded or cordless up-and-down roller blind or curtain, and can be fixed at a desired location through the bracket 16 . The adjusting device 2 can even be widely used in other places, such as projection screens, rolling doors and other places where there is a need to adjust the internal spring elasticity.

Please refer to the third and fifth figures. After the outer tube 15 is rotated and the curtain 17 is pulled down, the outer tube 15 drives the sleeve 14 to rotate so that the power-assisting spring 13 stores elastic potential energy, and the curtain 17 needs to be pulled down. When the curtain 17 is retracted, the power-assisted spring 13 releases the elastic potential energy to drive the sleeve 14 and the outer tube 15 to rotate, thereby assisting in retracting the curtain 17 .

Please refer to the first, sixth and seventh figures. When the power-assisting spring 13 is to be tightened, since the outer tube 15 is not rotated, the other end of the power-assisting spring 13 is equivalent to being held by the sleeve member 14 and the The outer tube 15 is positioned.

At this time, when viewed from the direction of Figure 6, by rotating the adjustment member 22 counterclockwise, the barrel 221 rotates counterclockwise, and one of the walls 224 abuts one of the protrusions 211, causing the adjustment spring 21 to stop tightening the Second shaft 12.

Continuing to rotate the adjusting member 22, one of the walls 224 pushes one of the protrusions 211 against the block 231. The adjusting member 22 drives the sleeve 23 to rotate counterclockwise, and the sleeve 23 in turn drives the booster spring 13 Twist to increase the elastic force of the booster spring 13.

After the adjustment member 22 stops rotating, since the power-assisting spring 13 has a tendency to return, the power-assisted spring 13 will drive the sleeve 23 to rotate clockwise, allowing the block 231 to push one of the protrusions 211 clockwise, thereby causing the One of the protruding points 211 is relatively far away from the other protruding point 211 , the adjusting spring 21 re-tightens the second shaft 12 , and the sleeve 23 and the boosting spring 13 are positioned.

Please refer to Figures 8 and 9. When the power assist spring 13 is to be loosened, the adjusting member 22 is rotated clockwise, so that the barrel 221 is rotated clockwise, and another wall 224 is pressed against the Another protrusion 211 causes the adjustment spring 21 to stop tightening the second shaft 12 .

Continuing to rotate the adjusting member 22 , the other wall 224 pushes the other protruding point 211 against the block 231 , the adjusting member 22 drives the sleeve 23 to rotate clockwise, and the sleeve 23 in turn drives the booster spring 13 Twist to reduce the elastic force of the booster spring 13.

After the adjustment member 22 stops rotating, the power-assist spring 13 also drives the sleeve 23 to continue to rotate clockwise because the power-assist spring 13 wants to return, allowing the block 231 to push one of the protruding points 211 clockwise, thereby causing one of the protruding points 211 to rotate clockwise. Also relatively far away from the other protruding point 211 , the adjusting spring 21 re-tightens the second shaft 12 , and the sleeve 23 and the boosting spring 13 are positioned.

Please refer to the second and third figures again. Through the adjustment spring 21 and the adjustment member 22, the elastic force of the booster spring 13 can be adjusted and positioned without using additional tools or reserving tool operating space. , can be more widely used in various places where the roller blinds 100 are densely arranged or where the roller blinds 100 are required to be arranged close to the wall.

Based on the description of the above embodiments, one can fully understand the operation, use and effects of the present invention. However, the above embodiments are only preferred embodiments of the present invention and should not be used to limit the implementation of the present invention. Scope, that is, simple equivalent changes and modifications based on the patent application scope and creation description content of this creation, are all within the scope of this creation.

100:Roller blind 1: Roller blind body 11:First shaft 12:Second shaft 13:Power-assisted spring 14:Sockets 15:Outer tube 16: Bracket 17: curtain 2: Adjustment device 21:Adjust spring 211:Bump 22:Adjustment parts 221: Barrel part 222: Ring Department 223:Open your mouth 224:Wall 23:Sleeve 231:Block

[The first picture] is an exploded view of the embodiment of this invention, illustrating the entire roller blind.

[The second picture] is the second exploded view of the embodiment of this invention, illustrating the adjustment device part.

[The third picture] is a cross-sectional view of the embodiment of this invention, illustrating the entire roller blind.

[The fourth picture] is the second cross-sectional view of the embodiment of this invention, illustrating the adjustment device part.

[The fifth picture] is a three-dimensional appearance diagram of this embodiment of the invention, illustrating the entire roller blind.

[Figure 6] is a cross-sectional view of the embodiment of this invention in the implementation state, illustrating the counterclockwise rotation of the ring.

[Figure 7] is the second cross-sectional view of the embodiment of this invention in the implementation state, illustrating the tightening of the booster spring.

[Figure 8] is the third cross-sectional view of the embodiment of this invention in the implementation state, illustrating the clockwise rotation of the ring.

[Figure 9] is the fourth cross-sectional view of the embodiment of this invention in the implementation state, illustrating how to loosen the power assist spring.

12:Second shaft

13:Power-assisted spring

16: Bracket

2: Adjustment device

21:Adjust spring

211:Bump

22:Adjustment parts

221: Barrel part

222: Ring Department

223:Open your mouth

224:Wall

23:Sleeve

231:Block

Claims (6)

An adjustment device for a roller blind power spring, which is provided on a roller blind body. The roller blind body includes an adjacent shaft and a power assist spring. The adjustment device for the roller blind power spring includes: An adjustment spring is bundled at one end of the shaft. Two protrusions are formed at both ends of the adjustment spring, adjacent to each other and extending away from the shaft respectively; An adjusting piece is provided at one end of the shaft. The adjusting piece has two dialing parts, and the protruding point is located between the dialing parts; and A sleeve is sleeved on the adjusting member. The sleeve has a piece located between the protrusions, and one end of the booster spring is combined with the sleeve; When the other end of the power-assisting spring is positioned, by rotating the adjusting member, one of the toggle parts pushes one of the protrusions and the block, so that the adjusting spring stores an elastic potential energy and stops tightening the shaft, and The sleeve drives the booster spring to twist and changes the elastic force of the booster spring; After the adjustment member stops rotating, the block pushes one of the protrusions away from the other protrusion, causing the adjustment spring to release the elastic potential energy to re-tighten the shaft, thereby positioning the sleeve. The adjustment device of the roller blind power spring as described in claim 1, further, the adjustment member has an adjacent tube part and a ring part, the tube part has an opening, and has two wall surfaces located at both sides of the opening. As the dialing part, the adjusting spring is accommodated in the barrel part, and the protruding point extends into the opening. An adjustable power-assisted spring roller blind, including: A rolling shutter body with an adjacent shaft and a power-assisting spring; and The adjustment device of the roller blind power spring described in claim 1 is provided on the roller blind body. The roller blind with adjustable power-assisting spring as described in claim 3, further, the roller blind body includes an outer tube, a cord is wound around the outer tube, and a set of connectors is engaged with the outer tube, and the power-assisted spring The other end is coupled to the socket. As for the roller blind with adjustable power-assisting spring as described in claim 4, further, the roller blind body includes two brackets arranged at both ends of the outer tube. The roller blind with adjustable power-assisted spring as described in claim 3, further, the adjusting member has an adjacent tube part and a ring part, the tube part has an opening, and has two wall surfaces located at both sides of the opening. As the dialing part, the adjusting spring is accommodated in the barrel part, and the protruding point extends into the opening.

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