JPH0322462Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a case mounting structure for a drive device in an automobile wind regulator.

Conventionally, this type of drive device houses a drum pivotally supported on a rotating shaft in a case with one drive side open, and a pulling wire and a pulling wire are wound around this drum, and the drum is wound around the rotating shaft. It has a structure in which one end is connected to the handle.

In addition, the opening of the case is closed with a ring-shaped cover plate that is inserted into the rotating shaft, and this cover plate is attached to the case by screwing or caulking, which reduces the time and effort required for assembly. It was something that required

In the present invention, the lid plate and the case are provided with an engaging piece and an engaging part that can be engaged when they come into contact with each other and are rotated in one direction, and the lid is covered with an elastic protruding piece that protrudes from the case. It is an object of the present invention to provide a case mounting structure for a wind regulator that prevents the plate from rotating in the opposite direction.

The case where the present invention is applied to the illustrated automobile wind regulator will be explained below. First, the entire wind regulator will be described schematically, and in FIGS. 3 to 6, only the mounting structure of the case will be explained. Explain.

Reference numeral 1 denotes a vertically facing rail fixed to the inner panel (not shown) of the door, and a carrier plate 3 fixed to the window glass 2 is attached to the rail 1.
is attached so that it can slide vertically.

Two wires 4, 5 are attached to the carrier plate 3.
Each end of the wire 4 is fixed, and one wire 4 rises upward along the rail 1, and then is guided to a guide roller 6 that is pivoted to the top of the rail 1 and a flexible cable conduit 7. case 9 in the drive device 8
After being wound around the outer periphery of the first drum 10, the end thereof is fixed to the outer periphery of the first drum 10.

The other wire 5 hangs down from the carrier plate 3, then rotates the guide roller 11 pivoted on the lower part of the rail 1 by half a turn, rises upward parallel to the rail 1, and is attached to an appropriate guide from the upper part of the rail 1. The wire 4 is guided by the piece 12 and the cable conduit 13 into the case 9, and is wound around the outer periphery of the second drum 14 in the opposite direction to the winding direction of the wire 4 to the first drum 10 described above. is fixed to the outer periphery of the second drum 14.

The case 9 includes a bottomed cylindrical portion 9a that accommodates the first drum 10 and the second drum 14, and a guide that extends in the tangential direction of the cylindrical portion 9a in a bifurcated manner and guides the wires 4 and 5. The opening of the bottomed cylindrical portion 9a is fixed to the inner panel of the door while being closed by a cover plate 15, as will be described in detail later.

At the center of the bottomed cylindrical portion 9a of the case 9, there is a lid plate 1.
5 and the inner panel, a rotating shaft 16 projecting inward of the door is pivotally installed, and the above-mentioned first drum 10 and second drum 14 are relatively rotatably supported on this rotating shaft 16. . Note that 9d is a boss portion formed at the center of the bottom of the bottomed cylindrical portion 9a of the case 9 in order to support the rotating shaft 16.

The first drum 10 and the second drum 14 form winding drums for the wires 4 and 5, and their opposing end surfaces allow relative rotation in the direction in which the wires 4 and 5 are wound around each other. Ratchet teeth 17a and 17b are formed to mesh with each other so as to prevent relative rotation in opposite directions.

A circular recess 18 is formed on the surface of the first drum 10 facing the bottom side of the case 9, and by biasing the first drum 10 in the direction of winding the wire 4, a circular recess 18 is formed in the recess 18. A spiral spring 19 is housed in order to balance the weight of the window glass 2 acting on the first drum 10 via the wire 4.

A bent portion 19 formed by bending the inner end of the spiral spring 19 at right angles toward the center of the rotating shaft 16
a is locked in a longitudinal slit 20 cut in the outer periphery of the boss portion 9d of the case 9.

The outer end of the spiral spring 19 is folded outward in a U-shape to form a U-shaped bent portion 19b.
The character-shaped bent portion 19b is locked to a locking portion (not shown) cut into the inner circumferential wall of the first drum 10.

21 is a reversal prevention mechanism that transmits the rotational force from the rotating shaft 16 to the second drum 14, but prevents the rotational force from the second drum 14 side from being transmitted to the rotating shaft 16 side, and its structure is different from the conventional one. Since it is the same as a known one commonly used in wind regulator devices, detailed explanation thereof will be omitted.

21a is a compression coil spring that is compressed between the reverse rotation prevention mechanism 21 and the second drum 14, and the spring 21a causes the second drum 14 to
By biasing toward 0, meshing between both ratchet teeth 17a and 17b is ensured.

Thus, if the wires 4 and 5 are not loose, the handle 22 attached to the tip of the rotating shaft 16
By rotating clockwise or counterclockwise in FIG. 1, the first drum 10 and the second drum 14 rotate together, the wires 4 and 5 reciprocate, and the carrier plate 3, the window glass 2 can be raised and lowered along the rail 1.

In addition, if the wires 4 and 5 become loose,
By relatively rotating the first drum 10 and the second drum 14 in the direction in which the wires 4 and 5 are wound around each other, the slack in the wires 4 and 5 is removed.

Next, the attachment structure of the lid plate 15 to the case 9 will be explained with reference to FIGS. 3 to 6, with both parts taken out for ease of understanding.

As shown in FIG. 3, the cover plate 15 has a cylindrical portion 15b in the center of a disk-shaped base plate 15a, and a shaft hole 15c in the center of the cylindrical portion 15b to receive the bearing of the rotating shaft 16. The tubular portion 15b has an annular projection 1 directed toward the inside of the case 9 at its base.
5e is installed protrudingly.

On the outer circumferential surface of the substrate 15a, three engaging pieces 23 extending radially from the center of the shaft hole 15c and each having a substantially L-shaped tip are arranged in a row at equal intervals in the circumferential direction. It protrudes on the side opposite to the cylindrical part so as to be parallel to the substrate 15a via the stepped part 23b of the lower part.

An engagement groove 23c is cut on the outer circumferential surface of the engagement piece 23 close to each step 23b of each engagement piece 23, and a female thread is provided at the center of the semicircular free end. 24 is engraved.

On the upper edge of the outer peripheral surface of the bottomed cylindrical portion 9a of the case 9, engaging portions, that is, three collar pieces 26, 27, 28 are horizontally protruded in the radial direction at equal intervals of 120 degrees on the same circumference. and the upper surface of each collar piece 26, 27, 28 is located above the upper surface 9e of the bottomed cylindrical portion 9a by the thickness of the substrate 15a, so that the inner end surface thereof is It serves as a guide surface 25.

Each of the flange pieces 26, 27, 28 has blocking surfaces 26a, 27a, 28a facing each other in the clockwise direction in FIG. There are hanging walls 26b and 27 on two sides that are L-shaped when viewed from above.
b, 28b are hanging down. Note that the hanging wall 28b of the collar piece 28 sandwiched between the guide tubes 9b and 9c
is formed integrally with the inner wall of the guide tube 9c.

At the center of each collar piece 26, 27, 28, there is a mounting hole 2.
9 is drilled.

Further, adjacent to the blocking surface 28a of the flange piece 28, a proximal end thereof is connected to the inner wall of the guide tube 9c so as to protrude into the rotation locus of the engagement piece 23, and has a plate shape. An elastic protrusion 30 is provided in a protruding manner. This elastic protrusion 30 has an elastic force, and its tip 30a can be slightly elastically deformed in the radial direction with respect to the bottomed cylindrical portion 9a and in the axial direction of the boss 9d, and always on the substrate 15a.
It protrudes from the upper surface by a length S.

A cover plate 1 is attached to the case 9 configured as described above.
5, first fit the base plate 15a of the cover plate 15 onto the guide surface 25 on the opening surface of the case 9, and then connect the free end 23a of each engagement piece 23 to each flange piece 2.
6, 27, 28 blocking surfaces 26a, 27a, 28a
to face.

At this time, since the engaging pieces 23 are provided at three locations at equal intervals of 120 degrees, they can be matched with the collar pieces 26, 27, and 28 at any position provided at 120 degrees each.

Next, the cover plate 15 is moved by the required angle onto the guide surface 2.
5 in the clockwise direction in FIG. 3, and slide each free end 23a into the lower surface of each collar piece 26, 27, 28. That is, the outer circumferential surface of the engagement piece 23 facing the collar piece 28 rotates while elastically deforming the elastic protrusion 30 outward, and each step 23b abuts on each stopper surface 26a, 27a, 28a. until it reaches a position where it cannot rotate.

At this time, the tip portion 30a of the elastic protrusion 30 engages with the engagement groove 23c.

In this mounting position (see Figure 4), the engaging piece 23 is locked to the lower surface of each collar piece 26, 27, 28, so the cover plate 15 moves from the case 9 to the handle side (forward in Figure 4). In addition, the elastic protrusion 30 prevents the substrate 15 from rotating in the opposite direction.

Further, as shown in FIG. 6, after the cover plate 15 is attached, the case 9 is fastened to the panel 31 with the screws 32 through the mounting hole 29 and the female thread 24, but the cover plate 15 and the case are temporarily assembled. 9, in order to ensure the engagement between the two, the elastic protrusion 30 is made to protrude from the substrate 15a by a length S, and the thickness of the elastic protrusion 30 is set so that the engagement does not easily come off. The mutual engagement position is set to be approximately at the center of the two.

When the elastic projecting piece 30 is tightened, the lower surface of the panel 31 presses into the protrusion, and the elastic projecting piece 30 is tightened in the retracted state shown by the two-dot chain line.

In the above embodiment, one pair of drums is pivotally supported on the rotating shaft in the case, but it is also possible to have one pair of drums, and the rotating shaft may be driven by a motor rather than manually. It may be something.

As explained in detail above, the case mounting structure of the wind regulator of the present invention includes an engagement piece having an engagement groove protruding from the outer peripheral surface of the cover plate, and the cover plate is attached to the case with the rotation axis centered. an engaging portion that engages the engaging piece when the lid plate is rotated by a required angle in the locking direction; and an engaging portion that engages the engaging piece when the lid plate is rotated by a predetermined angle in the locking direction; Attaching the cover plate to the case is completed by simply bringing the cover plate into contact with the case and rotating it in one direction.

Therefore, there is an advantage that the lid can be easily attached to the case in a short time.

Moreover, since no screw-fastening work is required, the number of parts is reduced, which has the advantage of lowering the cost of the wind regulator.

[Brief explanation of the drawing]

FIG. 1 is a front view of a wind regulator to which an embodiment of the present invention is applied, and FIG. 2 is an A of FIG.
- A vertical cross-sectional view taken along line A; FIG. 3 is a plan view showing only the case and lid shown in FIG. 2; FIG. 4 is a plan view showing the case shown in FIG. 3 with the lid attached. , FIG. 5 is a longitudinal sectional view taken along the line B--B in FIG. 4, and FIG. 6 is a longitudinal sectional view taken along the line C--C in FIG. 4. DESCRIPTION OF SYMBOLS 1... Rail, 2... Window glass, 3... Carrier plate, 4, 5... Wire, 8... Drive device, 9... Case, 10... First drum, 14...
...Second drum, 15...Lid plate, 21...Reverse rotation prevention mechanism, 23...Engagement piece, 23c...Engagement groove, 2
6, 27, 28... collar piece, 30... elastic protrusion piece.

Claims (1)

[Scope of utility model registration request] A drum pivotally supported on a rotating shaft is housed in a case with one drive side open, and a pulling wire and a pulling wire are wound around the drum, and
In the case mounting structure of a wind regulator in which an opening of the case is closed with a cover plate fitted into the rotating shaft with a shaft hole, an engagement piece having an engagement groove is provided protrudingly on the outer peripheral surface of the cover plate, The case includes an engagement portion that engages with the engagement piece when the cover plate is rotated by a predetermined angle in the locking direction about the rotation axis, and a cover plate that elastically engages with the engagement groove. A case mounting structure for a wind regulator, characterized in that it is provided with an elastic protrusion that can prevent rotation in a direction opposite to a locking direction of the wind regulator.