JPH0252074B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a wind regulator for an automobile, and more particularly to an improvement in a cable-driven wind regulator.

There are various types of devices for adjusting the window glass of an automobile up and down (opening and closing), that is, wind regulators. The most common type currently in use is the arm drive system shown in FIG. By rotating a handle 1 provided on the inside of the vehicle, a pinion (not shown) rotates and an arm 2 provided with a gear portion is rotated.
is driven and further cooperates with the arm 3 to move the window glass 4 up and down. However, as a recent trend, efforts are being made to reduce the total weight of automobiles as much as possible. From this point of view, all cable-driven wind regulators are unfavorable because they are mainly made of iron (arms, etc.). Therefore,
There is a trend toward reconsidering cable-driven or tape-driven types, which are easy to reduce weight.

FIG. 2 is a schematic diagram of a conventionally proposed cable-driven wind regulator. 20 is a gap in the door into which the window glass 21 fits, 22 is a glass holder provided at the lower end of the window glass 21, 23 is a cable holding piece fixed to the glass holder 22, and the cable 24 is bent into a substantially V shape. It is movable within the cylindrical cable guide 25, and one end thereof is fixed to the cable holding piece 23. The cable 24 consists of a flexible core material 24a and a wire material 24b spirally wound around the circumferential surface of the core material. One arm of the approximately V-shaped cable guide 25 is provided along the moving direction of the window glass 21, that is, the vertical direction, and is fixed to the door frame by a fixing member 26 at the lower end of the arm. A driving section 27 is provided intermediately from this fixed member to the free end of the other arm side via the bent section 25'. Of course, the drive section 27
is fixed to the door frame. When the operation handle 28 of the drive unit 27 is rotated, the cable is linearly driven by a pinion gear linked thereto, and the window glass 21 is moved up and down. However, in this way, the cable is connected to the approximately V-shaped cable guide 25.
However, since the cable holding piece 23 and the drive unit 27 are provided at a considerable distance, the drive force is not sufficiently transmitted. This is the music composition part 2
This is largely due to the fact that the cable 24 bends as it moves along the path 5'. Operate this handle 2
From the perspective of the person operating 8, it is not smooth to move the window glass 21 up and down, and the operation is quite "heavy".
It should give you that feeling.

In FIG. 2, the drive unit 27 is located in the part shown as the Z range.
The fact that it is not possible to arrange this will be explained based on the detailed cross-sectional views of FIGS. 3 to 6. Figure 3 is Figure 2A
-A line cross section, Figure 4 is Figure 3 D-D line cross section, Figure 5
The figures are a cross section taken along the line B--B in FIG. 2, and FIG. 6 is a cross-section taken along the line C--C in FIG. 5. Note that the "Z range" here refers to the range from the lower end of the window glass 21 to the fixing member 26.
This refers to the area related to the linear cable guide 25 that reaches . In other words, it refers to the linear portion immediately below the glass holding piece 23 within a range that can move up and down from the lower end of the window glass 1.

3 and 4, the manner in which the window glass 21 and the cable 24 are connected is explained in more detail.
1 is a glass holder 2 via a cushioning material 31 such as rubber.
2. A set plate 32 is fixed to approximately the center of one side of the glass holder 22 by welding (X in the figure indicates a welding location), and a cable holding piece 23 is fixed to this set plate 32 with bolts and nuts. As shown in FIG. 4, this cable holding piece 23 has a mounting portion 23a extending in the opposite left and right directions forming a mounting portion to the set plate 32, and a vertical portion extending in the vertical direction from each opposing end of this mounting portion. It consists of a portion 23b and a cylindrical portion 23c which forms a tube at the end of the vertical portion 23b and tightly wraps and fixes the core material 24a of the cable, and is made by bending a single plate-shaped material. cable guide 2
5 has a slit 25S cut out over the range of movement of the cable holding piece 23 through which the vertical portion 23b passes in the vertical direction.

FIG. 5 is a cross-sectional view of the drive unit 27, and a pinion gear 52 is fixed to a shaft 51 that is rotated by operating the operating handle 28. As shown in FIG. Cable guide 25
In the drive portion 27, the pinion gear 52 is held in a recessed portion of the door body, and an arcuate portion that is a part of the pinion gear 52 enters the notch opening 53 of the guide 25. The tips of the teeth of the pinion gear 52 are arranged at positions where they abut or are slightly compressed against the outer peripheral surface of the flexible core material 24a (sixth
figure). In conjunction with the rotating operation of the operating handle 28,
The pinion gear 52 has a spirally wound wire 24b.
The wire rod 24b is engaged with the wire rod 24b, and the cable 24 is moved upward or downward. The cable holding piece 23 moves so that its vertical portion 23b is guided vertically through the slit 25S, thereby moving the window glass 21 upward or downward.

By the way, in such conventionally proposed cable-driven wind regulators, the drive unit 2
Since the holding piece 23 interferes with the drive part 27
There was a drawback that it could not be arranged in the so-called "Z range".

Therefore, the main object of the present invention is to control the driving part of a cable-driven wind regulator within the "Z range", that is, the range of the upper and lower limits of movement of the window glass, and approximately from the connection position between the window glass and the cable. The object is to be able to arrange it in a position range of a certain distance directly below. By doing so, the operating load can be lightened and the configuration can be simplified, so that it is possible to reduce the weight and contribute to cost reduction.

Hereinafter, this invention will be explained in detail based on the embodiments shown in the drawings from FIG. 7 onwards.

FIG. 7 shows one embodiment. Cable drive section 70
is placed in the "Z range". This is the second conventional example.
This corresponds to the figure. Note that the same reference numbers as in FIG. 2 indicate the same or equivalent parts.
When the operating handle 71 is operated, the cable holding piece 80 freely passes through the drive unit 70 and closes the window glass 21.
can be moved up and down in the Z range.

8 and 10 show the structure of this cable holding piece 80 and the manner in which the drive section 70 passes through it. As clearly shown in FIG. 10, the cable holding piece 80 has mounting portions 81, 81 extending in opposite left and right directions along the surface of the set plate 32 to form a mounting portion to the set plate 32;
The mounting portion 81 has vertical portions 82, 82 extending perpendicularly to the set plate surface from the ends facing each other, and each of the vertical portions 82 is bent at right angles in the same direction. Parallel parts 83, 83 almost parallel to the plane
, a fixed part 84 fixed to the core material 24a of the cable 24 at the distal end of the parallel part 83, and a rack part 85 formed with unevenness having a pitch approximately equal to the pitch of the wire 24b (or the pitch of the tooth row of the pinion gear). It consists of The wire rod 24b is not wound around the part of the cable core material 24a that is in contact with the rack part 85, and the wire rod 24b is bent into a substantially U-shape from one end of the tooth row of the rack part 85 to the other end, so that the wire rod 24b is continuous. be done. However, this is for convenience in manufacturing the cable, and the approximately U-shaped bent portion may be omitted unless there is a particular need for continuous connection. In other words, the wire rod 2 is held at both ends of the tooth row of the rack part 85.
It is sufficient to leave the spiral winding of 4b. In this way, the wire rod 24b of the cable 24 and the rack part 85 provided at the end of the cable holding piece 80 seemingly form a series of racks. Of course, the length of this series of racks must be at least the length of the line segment connecting the upper and lower limits of the lower end of the window glass 21, and therefore, as shown in FIG. A cable 24 (of course, a cable guide 25 for guiding the cable is also integrally provided) is provided in advance to be bent toward the inside of the door. The pinion gear 72 of the drive unit 70 is provided with the drive unit 70 (this drive unit 70 is fixed to the door frame) so as to be parallel to the parallel portion 83, and is rotatable by the rotation shaft 73 of the operation handle 71. It is. On the other hand, cable guide 2
Of course, a slit 25S is cut out in 5 for passing the tip of the parallel portion 83 in the vertical direction over the movement range of the cable holding piece 80. An opening 90 is formed on one side of the cable guide 25 passing through the drive section 70, into which the gear section 72' of the pinion gear 72 is fitted.

In operation, the operating handle 71 of the drive unit 70
When the pinion gear 72 is rotated to the left (direction L in FIG. 9), the pinion gear 72 rotates, and the gear part 72' presses the spiral wire 24b of the cable 24 meshing with it, pushing the cable 24 upward. , window glass 21
Push upward (window glass closing operation). on the other hand,
When the operating handle 71 is rotated to the right (in the direction opposite to L in FIG. 9), the gear section 72' is initially moved to the wire section 2.
4b and pulls the window glass 21 downward. When the cable holding piece 80 just reaches the drive part 70, the rack part 85 formed at one end of the cable holding piece 80 and the gear part 7 are removed, as shown in FIG.
2' are engaged with each other, pushing down the cable holding piece 80, and engaging with the spiral wire 24b continuing to the rack portion 85, further pulling down the window glass 21 downward. This state continues until the lower end of the window glass 21 almost reaches the top of the cable guide attachment member 26. This position is the lower limit position of the window glass 21,
This completes the operation of fully opening the window glass. Also,
Needless to say, vertical adjustment is possible at any position.

As described above, according to the present invention, the cable guide is provided in the vertical movement direction of the window glass, and its upper and lower ends are gently curved, while the window glass holding piece is attached to the cable, and the cable guide is connected to the cable rack part. Since the rack parts of the same pitch are formed in the overlapping parts of the holding pieces, even if a pinion (drive part) that meshes with each rack part is provided at approximately the middle position in the vertical direction of the cable, the holding pieces will not be attached to the pinion. It allows free movement above and below the pinion without interference.

Therefore, there is no need to guide the cable with a roughly V-shaped cable guide as in the past.
The operating load on the drive unit (pinion) can be reduced, and the structure is simplified and weight can be reduced compared to the conventional example, which has the effect of reducing costs.

Note that the upper and lower ends of the cable guide according to the present invention are not bent into a V-shape as in the conventional case, but are gently curved, so there is almost no resistance to movement of the cable.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of an arm drive type wind regulator, Fig. 2 is a schematic diagram of a conventionally proposed drive type wind regulator, and Fig. 3 is Fig. 2A-
4 is a sectional view taken along the line D-D in FIG. 3, FIG. 5 is a sectional view taken along the line B-B in FIG.
-C line sectional view. FIG. 7 is a diagram showing an embodiment of the present invention, FIG. 8 is an explanatory diagram of details of the cable attachment section, and FIGS. 9 and 10 are explanatory diagrams for explaining the relationship between the cable holding piece and the drive section. In the figure, the 10th
The figure is a sectional view taken along the line XX in FIG. 9. 20...Gap in car door, 21...Window glass, 22...Glass holder, 24...Cable,
24a... core material, 24b... spirally wound wire rod, 32... set plate, 70... drive unit,
71...operation handle, 72...pinion gear,
80... Cable holding piece, 85... Rack part.

Claims (1)

[Claims] 1. A window glass of an automobile is provided on the vehicle body so as to be movable up and down within a certain distance, and a holding piece is attached to the lower end of the window glass, while a window glass storage section at the bottom of the vehicle body is provided with a holding piece in the vertical movement direction of the window glass. A cable guide is provided at the cable guide, and the upper and lower ends of the cable guide are each gently curved in the longitudinal direction of the vehicle body within the storage section, and a rack portion is formed on the cable guided by the cable guide, and the holding piece is attached to the cable guide. A rack portion of the same pitch is formed in the portion of the holding piece that overlaps the rack portion of the cable, and a pinion that engages with the rack portion is rotatably located approximately in the vertically intermediate position of the cable guide. A cable-driven window regulator, characterized in that the cable is moved up and down by rotation of the pinion, and the window glass is moved up and down via the holding piece.