Device for moving vertically sliding walls, windows, or the like, especially for motor vehicles
Patent Information
- Application Number
- DEW0064687
- Authority / Receiving Office
- DE · DE
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 1923-05-04
- Filing Date
- 1923-09-27
- Publication Date
- 1924-07-03
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing devices for vertically moving walls or windows in motor vehicles lack effective mechanisms for automatic braking and precise control when the driving force stops, leading to potential noise and inefficiency.
A device utilizing a friction surface on a drive shaft with a conical design and a ball ratchet mechanism, where a spring engages and disengages the friction surfaces to lock the drive roller, ensuring precise control and automatic braking when the driving force ceases.
The device provides silent operation by maintaining tension in the chain or band, requiring minimal force for movement and ensuring the wall or window remains in position without noise or sway, enhancing operational efficiency.
Description
[0001] Device for moving vertically displaceable walls, windows, or the like, in particular for motor vehicles. The present The invention relates to a device for moving vertically displacing walls by means of a roller pulley guided by a flexible band or chain and aims r.- to automatically brake and lock the wall as soon as the driving force ceases, 2. at Reinstating the driving force automatically causes the wall to be exposed or released before its movement is initiated.
[0002] The novelty of the device consists in that the traction element is mounted on a surface equipped with a friction surface or a sprocket, on which to move the driving (crank) shaft axially <Antriebsrolle geführt wird, die sich mit einer zweckmäßig kegelförmig gestalteten l\'.eilbfläche unter der Wirkung einer Feder äegen eine feststehende friction surface, and (let a ball stop be engaged between the drive shaft and the roller, which is compressed by the spring when Bek5 is engaged) which disengages the friction surfaces, but in rest allows the roller to be locked by frictional engagement of the friction surfaces.
[0003] The drawing shows the new device in an example _lusfiilirungsforin, with Fig. i showing a front view, Fig. 2 a section along line AA of Fig. i.
[0004] The illustrated example relates to (the window of a motor vehicle, the lower support of which is a crossbeam i with two reversing rollers 2 and 2' for the chain or other flexible band 3, which is attached to the car body in :1. This chain 3 runs over a roller 2, then via a movable drive roller 5 (Fig. 2), a lower reversing roller 6, whose axle is fixedly connected to the car body, furthermore via a roller 2' and is attached with its end to an Arni 7, which is pivoted at 8 and is under the influence of a spring 9, «-which the chain 3 holds its breath.
[0005] The drive roller 5 is connected to a sleeve io, which rotates freely on the driving crankshaft ii, which is fixed in a The housing 12, connected to the car body, rests on the shaft 12. A crank 13 is keyed onto the shaft 12. A disc 1- is also mounted on the shaft, which is connected to the shaft. The inner surface of the sleeve 10 is provided with spherical cavities 15. The inner surface of the sleeve 10 also has such cavities 16, which are located in special, on the bluff The arranged h-inserts 17 are attached. Balls 18 lie between these cavities 15 and 16. On the other hand, springs i9 act between a disc 20, which is screwed onto (a free end of the drive shaft ii, and the .nut io, so that the friction surface io2 of this effort (a The surface (which in the illustrated embodiment is conical, but can also have other shapes) always corresponds to the corresponding friction surface 122. the housing 12 is pressed to cause the dolly 5 to lock into place.
[0006] When inaii now moves the crank 13, the shaft ii straightens until the balls 18 are clamped between the recesses 15, 16. From this moment on, every further rotation of the shaft ii causes two forces to act on the sleeve io: one that makes the sleeve io slide on its shaft. the other, which rotates the sleeve. Since the friction between surfaces io2 and i22 is high at the beginning, the sleeve does not rotate, but It shifts or moves in the direction of its shaft until the friction has decreased sufficiently to allow the sleeve to be turned. -With other `cakes, the sleeve io is first released, and then it participates in the rotation of the shaft ii.
[0007] When the driving force ceases, the springs i9 again cause the sleeve io to be locked in place.
[0008] The disc is thus automatically fixed in the position or orientation in which it is located when the driving force ceases.
[0009] Because the chain 3 is constantly held taut by the spring g, a back-and-forth swaying is not possible, which means (let the The device makes no noise while the car is driving or moving.
[0010] Since the disc is lifted by means of a type of pulley system, only a small force is needed to move the disc. Of course, any other facility of this type can also be used for this purpose.
Claims
[0011] PATENT-AN SPRUCI3: Device for moving vertically displacing walls, windows or the like, in particular for Motor vehicle, by means of a flexible belt or chain guided over a roller pulley, characterized in that (the traction element over a drive roller (5) equipped with a friction surface or a sprocket, which is axially movable on the driving (crank) shaft (ii), which, with a suitably conical friction surface (toll) under the action of a spring (i9) against a stationary friction surface (122) lays, and that a ball locking mechanism (15, 16, 18) is inserted between the drive shaft (11) and the roller (5), which during motion transmission By compressing the spring (ig), the friction surfaces (10" and 122) are disengaged, but the locking of the roller (5) is prevented. Frictional engagement of the friction surfaces (io'L and 122) is enabled.