Window regulator apparatus

Abstract: A window regulator apparatus includes a guide rail (3) fixed within a door, a guide member mounted on the guide rail (3), a driving mechanism fixed within the door for up- and downwardly moving a window glass (2) along the guide rail (3), a wire (7) hung on the guide member and driving mechanism for transmitting a moving force to the window glass (2), a bracket member (8) fixedly connected to the window glass (2) and operatively connected to the wire (7), and a resilient member (11) mounted on the guide rail (3) for preventing the guide rail (3) and window glass (2) from the contact.

Description: The present invention relates to a window regulator apparatus according to the features indicated in the preamble of claim 1. The present invention starts from a prior art as it is known from US 4 669 221. In this document an apparatus is disclosed including a rail member fixed within a door, driving means (6) fixed within said door for up- and downwardly moving a window glass (2) along said rail member; a wire member (7) hung on said pulley and driving means (9, 10) for transmitting a moving force to said window glass; a bracket member (8) fixedly connected to said window glass and operatively connected to said wire member. Generally, a window regulator apparatus of a wire type is known, for example, by Japanese Utility Model Laid-Open No. 62 (1987) - 671. This window regulator comprises a door, a window glass up- and downwardly movably supported on the door, a guide rail fixed in the door and rotatably supporting pulleys at upper and lower portions thereof, a driving mechanism laterally fixed between the pulleys in the door, a wire hung between the pulleys and the driving mechanism, a bracket fixedly connected to the window glass and connected to the wire, and a roller fixed to the bracket and slidably provided on the guide rail, thereby moving the wire by actuating the driving mechanism and up- and downwardly moving the window glass through the roller and bracket. However, power of transverse direction is applied to the window glass in the above mentioned window regulator apparatus, the window glass comes down and is contacted with the guide rail. As this result, there is the danger of the window glass being damaged by the guide rail. One of the objects of the present invention is to provide an improved window regulator apparatus that overcomes the above mentioned disadvantages of the prior art. Another object of the present invention is to provide an improved window regulator apparatus, wherein a window glass is supported by a resilient member, when power of transverse direction is applied to the window glass and the window glass comes down, whereby there is no contact between the window glass and the guide rail, so that the window glass is prevented from being damaged. According to the present invention this object is achieved by the advantageous measures indicated in claim 1. Hence, according to the present invention, a resilient member is provided on said pulley for preventing said rail member and window glass from contact. The invention is advantageously developed by the measures mentioned in the subclaims. The present invention will be better understood from the following detailed description when considered in connection with accompanying drawings, wherein Fig. 1 shows a plain view of a window regulator apparatus according to the present invention; Fig. 2 is a sectional view of Fig. 1; and Fig. 3 is a view similar to Fig. 2, however, showing a main portion of the window regulator apparatus. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to Figs. 1, 2, a window glass 2 is up- and downwardly movably disposed in a door 1. A guide rail 3 is fixedly connected in the door thereto. A pulley 4 is rotatably mounted on a upper portion of the guide rail 3 and a shoe 5 is fixed to a lower portion of the guide rail 3. A driving mechanism 6 is laterally located between the pulley 4 and the shoe 5, and a wire 7 is hung on the pulley 4 and shoe 5 and driving mechanism 6 in a triangular shape. A bracket 8 is fixed to a lower portion of the window glass 2 and is fixed to the wire 7 through a hook 9 and is up-and downwardly movably supported through shoes 10, 10. When the driving mechanism 5 is actuated in the window regulator apparatus according to the above mentioned construction, the wire 7 is moved and the window glass 2 is up- and downwardly moved along the guide rail 3 through bracket 8, hook 9, and shoes 10, 10. As shown in Figs. 1 to 3, a resilient member 11 is fixedly connected to a head portion of a pin 12 which is a pivot shaft of the pulley 4 rotatably supported on a top portion of the guide rail 3. Accordingly, the window glass 2 is supported by the resilient member before the guide rail 3 and the window glass 2 are contacted, even if force of transverse direction (direction A shown in Fig. 2) is applied on the window glass 2 and the window glass 2 comes down. Therefore, the window glass 2 and the guide rail 3 are prevented from the contact and the window glass 2 is prevented from the damage. It is not necessary to provide a clearance between the window glass 2 and the guide rail 3 for preventing from the contact, and it is possible to reduce the width of the door 1. According to the present invention, the window regulator apparatus includes the door 1, the window glass 2 up- and downwardly movably supported on the door 1, the guide rail 3 fixedly connected to the door 1 and rotatably supporting the pulley 4 on the upper portion of the guide rail 3, the driving mechanism 6 laterally fixed between the pulley 4 and shoe 5 within the door 1, the wire 7 hung on pulley 4 and shoe 5 and driving mechanism 6, and the bracket 8 fixed to the window glass 2 and connected to the wire 7. The resilient member 11 is fixedly connected to the head portion of the pin 9 which is a pivot shaft of the pulley 4 rotatably supported on the top portion of the guide rail 3. Accordingly, the window glass 2 and the guide rail 3 are prevented from the contact and the window glass 2 is prevented from the damage. Further, it is not necessary to provide a clearance between the window glass 2 and the guide rail 3 for preventing from the contact, so that it is possible to reduce the width of the door 1. In case that the resilient member 11 is directly mounted on the pulley 4, the above mentioned same function and results can be attained.

Claims: A window regulator apparatus including a rail member (3) fixed within a door; a pulley (4) mounted on said rail member; driving means (6) fixed within said door for up- and downwardly moving a window glass (2) along said rail member; a wire member (7) hung on said pulley and driving means (9, 10) for transmitting a moving force to said window glass; a bracket member (8) fixedly connected to said window glass and operatively connected to said wire member; characterized by a resilient member (11) provided on said pulley for preventing said rail member and window glass from contact. A window regulator apparatus as set forth in claim 1, wherein said pulley is provided on an upper portion of said rail member. A window regulator apparatus as set forth in claim 1, further comprising: pin means (12) fixedly connected to said rail member. A window regulator apparatus as set forth in claim 3, wherein said resilient member is mounted on said pin means, which is a pivot shaft of said pulley.

Inventors: ISOMURA YUKIO, KUKI NOBUYUKI, SAKAKIBARA YOSHIKAZU, SUZUMURA HIROKAZU, ISOMURA, YUKIO, KUKI, NOBUYUKI, SAKAKIBARA, YOSHIKAZU, SUZUMURA, HIROKAZU
Applicants: AISIN SEIKI, AISIN SEIKI KABUSHIKI KAISHA
Application year: 1990
Main classification: E05F11
IPC codes: B60J1, E05F11, E05F7