JPS6397785A - Window lifting gear for automobile - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Description: TECHNICAL FIELD The present invention relates to a manual window raising device for motor vehicles, which is a significant improvement over prior art devices for the same purpose.

Manual window raising devices known in the prior art generally consist of a cylindrical drum provided with a spiral groove on the outside, on which a drum starting from the distal end of the groove and located near a central area and extending in the opposite direction. Said cable is wound with a cable having two free ends projecting tangentially outwards, said cable being suitably guided and supporting a glazing support in its intermediate region and being dynamically coupled to each crank. Due to the initial rotation of the drum,
Transmits straight upward or downward motion to the window glass. Modern window lifting devices are designed to avoid problems for the user with the free movement of the window glass, such as the window opening inadvertently due to the window's own weight or when trying to force the window open from the outside. incorporates a braking mechanism, which is inserted between the working crank and the helical drum mentioned above. This braking mechanism includes a helical spring under tension housed in a spring holder box, the ends of which are in the form of hooks, which suppress the free rotation of the drum with strong pressure when stationary, and when the crank is in one direction. Alternatively, when operated in the other direction, it pulls one end of the spring hooked thereon, greatly reducing the friction value and causing the drum of the device to move.

Problems to be Solved by the Invention Conventional manual window lifting devices are large-scale devices because the above components are placed side by side, but each of these components can be redesigned and made smaller. In addition, if the number of components can be reduced to simplify assembly, the space inside the door can be increased by reducing the volume of the device.
It is also extremely useful as it leads to cost reduction. It is therefore an object of the present invention to provide an inexpensive window lift device that changes the design of the components, reduces the number of components, and significantly reduces the width and therefore the volume of the device.

Means for solving the problem According to the invention, the above object is achieved by providing an operating crank, a cylindrical drum (1) provided with a spiral groove (2) on the outside, and a brake inserted and connected between them. the cylindrical drum (1) also has a cylindrical hollow part (3) in one of its bases;
From there, there is a core part (4) with a through hole (5) in the center.
) protrudes, and two lugs (6) extend against the base, positioned so as to create two symmetrical spaces with respect to the through-hole (5) from both sides of the core, and rest on the drive shaft (8) of the device. Several arms are provided (7, 7°
) with a predetermined clearance.

The automotive window lifting device of the present invention has a wide base with a hole for easy assembly.
A helical spring is arranged in the holder box, the ends of the spring are bent towards the center of the helix, and the braking mechanism, which is exposed to torsional stress, is inside the cylindrical drum and its inner surface and the curved ends of the above-mentioned springs, which are precisely housed in the space between the core projecting from the bottom of the hollow and located on one side of each of the lugs, forming a very compact assembly. Motsu.

The automotive window lift device of the present invention is further characterized in that the outer edges of the base plate, on which the remaining components are assembled, fit with mutually corresponding parts of the sealing cover thereof, are asymmetrical, and the outer edges of the base plate are asymmetrical, and the outer edges of the base plate are asymmetrical, and the outer edges of the base plate are asymmetrical, on which the remaining components are assembled. It has some tabs on the hooked end, and features a feature that makes it easy to assemble, so it can only be assembled in certain positions.

The manual window lifting device of the present invention will be described below with reference to the drawings.
(See Figures 1 and 2)
A hollow part 3, which is also cylindrical, is provided on top of the ring, from which a core 4 with a through hole 5 protrudes.
Two lugs 6 extend through it and into contact with said base on both sides, said lugs 6 creating two symmetrical spaces in the hollow part 3, into which several respective spaces with a predetermined clearance are arranged. Arm 7-7” (not shown) is accommodated;
They are shaped in such a way that they leave a free circular space in which a braking mechanism is accommodated, which consists of a spring holder box with a wide base 9' and a spiral spring 10
, both ends of the spring lO are curved towards the center of the helix and are also subjected to torsional stress, constantly contacting and exerting pressure on the inner wall of the case 9.

This window lifting device preferably has a base plate 1 made of metal.
1, other component parts are assembled on this base plate, and a molded cover 12 is provided,
It fits into the base in a unique position thanks to its asymmetrical envelope and the end of the cable 13, which transmits the movement of the drum 1 to the motor vehicle window frame. The base plate 11 is provided with an outer periphery with an edge 14 at some height around its entire circumference, and is provided with a tab 15 for fixing the above-mentioned cover 12, so that assembly work during manufacturing is extremely easy. be.

[Brief explanation of the drawing]

Fig. 1 is a partial cross-sectional view of the main part of the window raising device according to the present invention (a cross-sectional view taken along the line I-I in Fig. 3, which will be described later); Fig. 2 is a partial cross-sectional view similar to Fig. 1; 1, some of the constituent parts are shown in the W position compared to FIG. 1; FIG. 3 and FIG. 1 are side views of the window lifting device according to the present invention. patent application agent

Claims (3)

[Claims] (1) An operating crank, consisting of a cylindrical drum (1) provided with a spiral groove (2) on the outside and a braking mechanism (9, 10) inserted and connected between them, said cylindrical drum ( There is also a cylindrical hollow part (3) in one of the bases of 1), from which protrudes a core part (4) with a through hole (5) in the center, and a through hole (5) from both sides of the core. Extending against the base are two lugs (6) positioned so as to create two symmetrical spaces relative to each other, each of several arms (7, 7' ) with a predetermined clearance. (2) Consists of a spring holder box (9) with a wide base provided with holes to facilitate assembly, in which a helical spring (10) is placed, the ends of the spring being curved towards the center of the helix; The braking mechanism (9, 10), which is rotated and subjected to torsional stress, is mounted on a cylindrical drum (1).
of said spring (10) located on either side of one of the lugs (6), located inside the space exactly in the space consisting of the inner surface and the core (4) projecting from the bottom of the hollow part (3). 2. The device of claim 1, wherein the device forms a very compact assembly with a curved end. (3) The remaining components are assembled thereon, with the circumferential edges of the base plate (11) being asymmetrical and fitting with the mutually corresponding circumferential edges of the sealing cover (12), and the above-mentioned cover (
12) on the edge (14) to secure it.
15), and therefore can be assembled in one place and is easy to assemble.