TWM539926U - Stair elevating chair structure having double rollers - Google Patents

Description

Double row roller stair lift structure

The present invention relates to a double-row roller stairlift structure, which is capable of holding the rails by double-row rollers, and can be lifted and lowered relatively stably on the rails.

Related to, the appearance of stairlifts is a product of modern civilization. As far as the current buildings are concerned, the general high-rise buildings are equipped with lifts or escalators for people to go up and down the floors. However, for traditional transvestites or some of the early construction of apartment buildings with less than five floors, most of them are stairs to reach the floor to be reached.

Therefore, for the average person, it is not difficult to go up and down the stairs. However, for some people with disabilities or patients with impaired mobility or those who are old and weak, it is very difficult to go up and down the stairs. Therefore, the European and American regions have already been very difficult. The stair lift chair is designed for people with reduced mobility to go up and down the stairs.

The conventional lifting chair clamping device is designed as a single-row wheel. Please refer to Figure 1 for a schematic view of the appearance of the chair. The chair back 10 has a clamping at the rear end of the chair. The device 11 and a transmission device 12 (please refer to FIG. 2), the clamping device 11 is clamped to the upper rail 21, and the transmission device 12 extends with a gear 121, and the gear 121 and the lower rail The tooth rows 220 disposed on the 22 are engaged, and the gears 121 are moved by the transmission 12 to move on the lower rails 22.

As for the clamping device 11 , the upper roller 111 , the lower roller 112 , the deflecting plate 113 and the positioning piece 114 are included. The upper and lower rollers 111 and 112 are fixedly positioned by the deflecting piece 113 and the positioning piece 114, and are clamped to the upper rail 21. By the yaw piece 113, the yaw can be generated as the upper rail 21 moves, which facilitates the running movement of the chair lift.

However, the biggest loss of the single row of rollers is that the clamping device 11 is fastened to the back of the chair 10, and the entire chair is only held by a single row of rollers. Although it does not fall, the stability is poor, and it is easy to shake when moving. Stable, affecting the occupants have security concerns.

The creators have not been able to meet the needs of the single-row roller clamping device, so they are actively investing in R&D reforms and concentrating on solutions, and relying on their own professional and years of work experience, and after several trials. After the correction and improvement, I finally created a double-row roller. Clamping device.

The present invention relates to a double-row roller stairlift structure, which is mainly located behind the chair of the chair, and has a clamping device and a transmission device, and the transmission device is clamped to the lower rail and clamped. The device is clamped to the upper rail to maintain the stability of the chair lift, making the chair lift very smooth and smooth.

The clamping device has two rows of upper and lower rollers, and the roller is clamped and positioned by the deflecting piece and the positioning piece, because the double row of rollers makes the distance on the rail strip contact with the upper rail, increasing The stabilizing effect of the chair lift. Moreover, the double-row roller is not in a straight line, but is offset by an angle from both sides, and a gap is formed because if the double-row roller is bent in an angle on the rail, it cannot move at all, even if the roller has a gap. It can be yawed, and the position of the tangential line of the bent rail cannot be moved at all according to the angle of the bending, so the upper and lower rollers will be stuck and cannot operate without adjusting the angle of the roller.

Furthermore, the creation can use the offset angle set by the upper and lower rollers, and the gap setting can control the clamping device to smoothly advance regardless of the movement in a straight line or a curved road, especially when moving in a curve. When the angle changes, it may cause the rollers of any row to be like to offset the rails. However, by setting the gaps, the rollers can be properly traversed, and can completely travel on the rails, making the chair more In addition to the smoothness, the most important is the clamping device of the double-row roller, which makes the roller move more smoothly.

[study]

1‧‧‧ chair lift

10‧‧‧Back of the chair

11‧‧‧Clamping device

111‧‧‧Upper scroll wheel

112‧‧‧Lower scroll wheel

113‧‧‧Partial film

114‧‧‧ Positioning film

12‧‧‧Transmission

121‧‧‧ Gears

21‧‧‧Upper rail

22‧‧‧low rail

220‧‧‧ teeth row

[this creation]

21‧‧‧ rails

3‧‧‧Lifting chair

30‧‧‧Back of the chair

4‧‧‧Clamping device

41‧‧‧Upper wheel

42‧‧‧Lower scroll

43‧‧‧ yaw

44‧‧‧ Positioning film

5‧‧‧Transmission

Figure 1 is a schematic view of the appearance of a conventional chair.

Figure 2 is a schematic view of a conventional lift chair clamping and transmission device.

Figure 3 is a schematic view of the three-dimensional appearance of the chair lift.

Figure 4 is a schematic view of the structure of the present clamping device.

Figure 5 is a top view of the creation of the clamping device.

Figure 6 is a top view of the creation of the clamping device.

Figure 7 is a schematic diagram of the movement of the present clamping device.

Figure 8 is a schematic diagram 2 of the movement of the present clamping device.

Figure 9 is a schematic diagram of the movement of the present clamping device.

First, please refer to the third perspective view of the present invention. The chair 3 is provided with a clamping device 4 and a transmission device 5 at the rear end surface of the seat back 30 (please refer to FIG. 4). The transmission device 5 is the same as the conventional one, and therefore, the focus of the present invention is on the clamping device 4, and the clamping device 4 at the rear end of the seat back 30 is composed of a double row of upper rollers 41 and corresponding The lower roller 42 is composed of a yaw piece 43 and a positioning piece 44 for fixing and positioning the double row of upper and lower rollers 41 and 42 and clamping the upper rail 21 with a gap. When the upper rail 21 moves, a traverse occurs, which makes the chair 3 move more smoothly on the rail.

For the double-row roller, please refer to FIG. 5, which is a top view of the clamping device. The double row upper and lower rollers 41 and 42 of the clamping device 4 are not arranged in a straight line but are offset on both sides. An angle is shifted for the purpose of moving smoothly on the rails 21. Since the double row upper and lower rollers 41, 42 have a certain interval, they are clamped on the rail 21 by double points, and the stability of the chair is extremely high, and no shaking occurs when moving.

However, since the rails 21 are not all straight lines, there must be a bent portion, and if the rollers are in a straight line, they must be stuck at the turn and cannot move. The creation shifts the upper and lower rollers 41 and 42 by an angle and is provided with a gap. Therefore, when traveling in a straight line, the upper and lower rollers 41 and 42 seem to be offset from the rail 21, but the gap is used to make up, The lower rollers 41, 42 produce a partial yaw that can be held on the rails 21. When encountering a turn, please refer to Fig. 6, the front and lower rollers 41, 42 of the front end can be turned by the offset angle, but the angle is too small, the front upper and lower rollers 41, 42 are utilized by the gap. The yaw is generated while being held on the rail 21, and the opposite rear upper and lower rollers 41, 42 are also smoothly moved on the rail 21 with the gap being offset.

For the condition of the clamping device 4 and the movement of the rail, please refer to FIG. 7 , which is a schematic diagram of the movement of the clamping device 4 of the present invention when the rail is clamped to the rail 21 . 5)), the front and rear upper and lower rollers 41, 42 are provided with an offset angle and are clamped on the rail 21, but the gap can be used to make the roller moderately yaw, so it can be kept stable when straight. Smooth. When starting to turn (refer to Figure 8), start the steering with the angle of its offset (as shown in Figure 6), but the angle of the upper and lower rollers 41 (42) should not be too large, otherwise in the straight line Can not travel when the rails. Therefore, when the transmission device 5 continues to push, the front and lower rollers 41 and 42 are held by the yaw to be clamped on the rail 21, and the rear upper and lower rollers 41 and 42 are also retained by the yaw. 21, indeed To ensure the stability of the chair lift, when the front and lower rollers 41 and 42 are turned back to the linear rail 21, please refer to Figure 9 again. At this time, the rear upper and lower rollers 41 and 42 also use the gap. The yaw is held on the rail 21, and the front and rear upper and lower rollers 41, 42 have returned to the linear rail 21 and remain clamped on the rail 21 (again, as shown in Fig. 7), the clamping In addition to maintaining the stability of the chair lift, the device 4 can utilize the lower double row upper and lower rollers 41, 42 to facilitate the steering movement, so that the travel is smoother and more stable.

Moreover, since the angles at both ends of the upper and lower rollers 41 and 42 of the double row are not large, when the straight line advances, the yaw function generated by the gap can make the double row upper and lower rollers 41 and 42 smooth. Advancing on the rails 21.

In summary, the design of the double-row roller allows the chair to have better stability, avoiding swaying during travel, and the roller at both ends is intentionally offset by an angle, which is convenient for smooth turning when traveling. Smooth, it has become more advanced than the traditional, and actually filed a patent application according to law.

21‧‧‧ rails

30‧‧‧Back of the chair

4‧‧‧Clamping device

41‧‧‧Upper wheel

42‧‧‧Lower scroll

43‧‧‧ yaw

44‧‧‧ Positioning film

5‧‧‧Transmission

Claims (3)

The utility model relates to a double-row roller stair lift chair structure, which is mainly provided with a double-row roller clamping device on the back of the stair lift chair, which has a double row upper and lower roller, and uses a biasing piece and a positioning piece to double row The roller is fixedly positioned, and the double row of rollers is offset at an angle to both sides and maintains a traversing gap. The double-row roller stairlift structure according to claim 1, wherein the double-row roller can smoothly advance on the linear rail or the curved rail by the gap. The double-row roller stairlift structure according to claim 1, wherein the double-row roller uses the angle of the offset of the two sides of the roller and the traverse of the gap during the turning, which is beneficial to the roller advancement.