JPH0252075B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wind regulator for an automobile, and more particularly to an improvement in a tape-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, arm-driven wind regulators are not preferable because they are mainly made of iron (arms, etc.). Therefore, there is a tendency to reconsider the cable-driven type or tape-driven type, 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 the 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 the window glass 21, 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 Figure 2, the range indicated as Z (hereinafter referred to as “Z range”)
The third point is that the drive unit 27 cannot be installed in the
The explanation will be made based on the detailed cross-sectional views shown in FIGS. 6 to 6. Figure 3 is a cross section taken along the line A-A in Figure 2, and Figure 4 is a cross section of Figure 3.
Figure 5 is a cross section taken along the line B-B in Figure 2.
and FIG. 6 is a cross section taken along the line CC in FIG. Note that the "Z range" herein refers to an area related to the linear cable guide 25 from the lower end of the window glass 21 to the fixing member 26. In other words,
This refers to the linear portion immediately below the cable holding piece 23 within the 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, a slot 25S is cut out over the movement range of the cable holding piece 23 for passing the vertical portion 23b 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 slot 25S, thereby moving the window glass 21 upward or downward.

The conventional tape driven type wind regulator is similar to the cable driven type described above. In the tape drive type, as shown in Figure 7,
The window glass 21 is moved up and down by moving the tape-like body 34 (hereinafter referred to as "tape") up and down. The tape 34 is molded from a flexible and relatively rigid synthetic resin material and consists of a base 34a and a rack formed on the base 34a. Base 34 at the upper end of this tape 34
a and the end of the holding piece 23 are fixed, and the vertically rising portion 23b of the holding piece 23 can move up and down within a slot 35s cut out vertically in the tape holder 35. The tape 34 is driven by a drive section, and as shown in FIG.
4b is based on the rotation of pinion 52' meshing with pinion 4b.
This is the same as described for the cable drive type in FIG. Of course, tape guide 3
5, the tooth part of the pinion 52' is attached to the rack part 34b.
An opening 53' is provided so that the opening 53' can be engaged with the opening 53'. Note that 51' is a rotating shaft of the handle 28 of the driving section, and is fixed to a pinion 52'.

By the way, such conventionally proposed cable- or tape-driven wind regulators have the disadvantage that the drive part cannot be disposed in the so-called "Z range" because the holding piece interferes with the drive part. Ta.

Therefore, the main object of the present invention is to move the drive unit in a tape-driven window regulator in particular to the "Z range", that is, the range of the upper and lower limits of movement of the window glass, from the connection position between the window glass and the tape. The object is to be able to arrange it in a position range of a certain distance almost 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. 9 onwards.

FIG. 9 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 numerals as in FIG. 2, FIG. 7, and FIG. 8 indicate the same or equivalent parts, and detailed explanation thereof will be omitted. The length of the tape 34 is set to be slightly longer than the upper and lower limits of movement of the window glass 21, and the tape holding piece 80 is attached to approximately the middle portion of the tape 34 in the length direction. A tape guide 35 that accommodates the tape 34 together with a series of racks provided at its tip and guides its movement is provided in a straight line approximately along the movement range of the window glass 21, and its end is attached to the door. It is fixed to the frame by a fixing member 26 or the like. The tape guide 35 is installed in the slot 35 cut out in the vertical direction.
The tape holding piece 8 is placed so that s is almost parallel to the surface of the window glass 1.
It is attached so that it faces the tip of the 0. Needless to say, a slot-shaped groove is cut out in the casing of the drive unit 70 at a location corresponding to the slot 35s. Further, both ends of the tape guide 35 in the longitudinal direction are bent inward so as not to protrude outward from the upper and lower ends of the door frame. As shown in the figure, when the window glass 21 is at approximately the uppermost position, the tape 34 is attached to the tape guide 35 by a certain length.
exposed from the top edge. As the window glass 21 is lowered as the tape 34 is driven, the exposed tape 34 is drawn into the tape guide 35,
Conversely, the other end (lower end) of the tape 34 enters the hollow portion at the bottom of the tape guide 35. When the operating handle 71 is operated, the tape holding piece 80 freely passes through the drive unit 70 and is attached to the window glass 2.
1 can be moved up or down in the Z range.

FIG. 10 is a schematic sectional view for simultaneously showing and explaining the shape of the tape holding piece 80, the attachment state of the tape holding piece 80 and the tape 34, and the relationship between the pinion 52' and the tape 34. The tape holding piece 80 is connected to the set plate mounting portions 81, 8.
1, a vertical portion 82, a parallel portion 83, and tape attachment portions 84, 84. The set plate attachment portions 81, 81 are portions that extend in opposite left and right directions along the surface of the set plate 32, and are fixed to the set plate 32 with screws 85. The vertical portion 82 is a portion extending substantially perpendicular to the surface of the set plate 32. A parallel portion 83 is a portion that is substantially perpendicular to this vertical portion 82, in other words, substantially parallel to the set plate surface. A portion of the distal end of the parallel portion 83 that is bent in the left-right opposite direction so as to be substantially perpendicular to the parallel portion 83 forms a tape attachment portion. Preferably, tape retaining piece 80 is made from one piece. That is, a cut of an appropriate length is made in the upper and lower parts of a plate-shaped iron plate having an appropriate width and an appropriate length in the longitudinal direction. Then, the pair of pieces separated by this cut are bent 90 degrees in opposite directions. After bending each of the upper and lower parts at 90 degrees, the iron plate may be bent at approximately 90 degrees in the longitudinal direction at approximately the center of the plate. In this way, a member having a relatively complicated shape like the tape holding piece 80 can be
This has great advantages in terms of man-hours and costs compared to forming separate parts by welding. The parallel portion 83 of the tape holding piece 80 is fitted into the slot 35s of the tape guide 35, but the tape attachment portion 8
4 and 84 fit into recesses formed in the base 34a of the tape 34 in the width direction and are screwed by screws 85 and 85. Of course the tape mounting part 84, 8
4 is provided with a female screw hole. In order to ensure this fixation, the screws are not limited to two places, but may be screwed at two or more places.

On the other hand, the pinion 52' of the drive unit 70 has its teeth 52'' entering the inside of the tape guide 35 through an opening 53' which is a part of the tape guide 35 cut out.
It is attached to mate with a series of lugs on tape 35. Of course, the disk surface of the pinion 52' is arranged parallel to the window glass 21, and therefore the direction in which the teeth of the rack portion 34b of the tape 35 protrude is approximately parallel to the surface of the window glass 21.

When the operating handle 71 in FIG. 9 is rotated, the pinion 52' rotates and its teeth 52'' drive the rack portion 34b of the tape 34. As shown in FIG. 11, the pinion 52' is rotated clockwise. When the pinion 52' is rotated counterclockwise, the rack part 34b is pushed down and the window glass 21 is lowered (opening operation). 21 rises (opening operation). When the tape holding piece 80 just comes to the drive unit 70, the parallel part 83 of the holding piece 80 freely passes through the vertical groove cut out in the housing of the drive unit 70, and the tape is attached. A series of rack parts 34b are also provided on the base part 34a of the tape to which the part 84 is fixed, so that the pinion 52'
can continuously drive the tape 34 upward or downward in this section as well. It goes without saying that the window glass 21 can be freely adjusted up and down at any position.

As described above, according to the present invention, the tape guide is provided in the vertical movement direction of the window glass, and the lower end is gently curved, while the window glass holding piece is attached to the other surface of the tape. Since the rack part is formed on one side of the tape, even if a pinion (driving part) that engages with the rack part is provided approximately in the middle of the tape guide in the vertical direction, the holding piece will not interfere with the pinion. The pinion can now move freely upwards and downwards.

Therefore, there is no need to guide the cable with a roughly V-shaped cable guide as in the conventional case, so the operating load on the drive unit (pinion) can be reduced, and the structure is simpler than the conventional example. It is possible to reduce the weight by reducing the weight, which has the effect of reducing costs.

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

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of an arm-driven wind regulator, Fig. 2 is a schematic diagram of a conventionally proposed cable-driven wind regulator, Fig. 3 is a sectional view taken along the line A-A in Fig. 4 is a cross-sectional view taken along the line D--D in FIG. 3, FIG. 5 is a cross-sectional view taken along the line B--B in FIG. 2, and FIG. 6 is a cross-sectional view taken along the line C--C in FIG. FIG. 7 is an explanatory diagram of the mounting part of a tape-driven wind regulator, FIG. 8 is an explanatory diagram of a state in which the tape is driven by a pinion, and FIG. 9 is a diagram showing an embodiment of the present invention. FIG. 10 is a schematic sectional view mainly for explaining the shape of the tape holding piece, and FIG. 11 is an explanatory view of the state in which the tape holding piece passes through the drive section. 20...Gap in car door, 21...Window glass, 34...Tape, 34a...Base of tape,
34b... Rack part, 70... Drive part, 71...
Operation handle, 52'...pinion, 53'...opening, 80...tape holding piece, 83...parallel portion,
84... Tape attachment 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 tape guide is provided at the upper and lower ends of the tape guide.
Each tape is gently curved in the longitudinal direction of the vehicle body within the storage section, and a rack portion is formed on one side of the tape guided by the tape guide. A pinion that engages with the rack portion is rotatably provided at a substantially intermediate position, and rotation of the pinion moves the tape up and down, thereby moving the window glass up and down via the holding piece. tape-driven wind regulator.