JPH0523739Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a drum casing. More specifically, the present invention relates to a drum casing of a wind regulator drive device.

[Prior Art] A window regulator is used to raise and lower the window glass of an automobile, and is configured as shown in FIG. 10, for example. In the figure, 50 is a driving device and 60 is a driven device. A winding drum 52 is housed in a drum casing 51, and wires 5 and 6 are wound around the winding drum 52. The winding drum 52 is rotated in both forward and reverse directions by a handle 55, whereby the wires 5 and 6 are wound or unwound. On the other hand, the driven device 6
0 is equipped with a guide rail 61 that is attached in the door panel and extends in the vertical direction, and a carrier 62 is slidably attached to the guide rail 61. Note that the window glass 63 is fixed to this carrier 62. Further, wire guides 64 and 65 are provided at the upper and lower ends of the guide rail 61, and the wires 5 and 6 are guided by them. The ends of the wires 5 and 6 are fixed to the carrier 62, and when the wires 5 and 6 are pushed and pulled by the driving device 50, the window glass 63 is raised and lowered.

Conventionally, the drum casing 51 of the drive device 50 has a drum storage section that accommodates the winding drum 52, but each of these is formed in a perfect circular recess with a diameter slightly larger than the drum diameter, and the center portion A bearing is provided to support the drum. Then, the handle shaft is inserted into the winding drum 52 and the bearing, and the winding drum 52 is assembled into the drum casing 51.

[Problems to be solved by the invention] In the conventional drum casing, the winding drum 52 and the wires 5 and 6 are connected to the drum casing 5.
Wires 5 and 6 must be assembled in 1.
cannot absorb the slack. For this reason, an adjustment screw mechanism 53 is provided in the drum casing 51 at a portion through which the wires 5 and 6 are passed, and by turning the adjustment screw, the slack of the wires 5 and 6 is absorbed.

However, if this is done, an adjustment process is required in addition to the assembly work, and there is a problem that assembly takes time. Further, since the adjustment screw mechanism 53 is provided, the outer diameter of the drive device, especially the height H, becomes large, which is disadvantageous in terms of space design.

In view of the above circumstances, it is an object of the present invention to provide a drum casing in which wires can be adjusted at the same time during assembly work and whose outer diameter can be made compact.

[Means for Solving the Problems] The present invention is a drum casing for a wind regulator drive device, which includes a drum storage portion that accommodates a cylindrical wire winding drum, and a wire wound around the winding drum. and a guide portion for guiding the two wires to the outside in directions having the same directional component, respectively, and a guide portion for guiding the winding drum in the drum storage portion in the same direction as the same directional component. and a space in which the winding drum can be moved in the opposite direction, and when the winding drum is located near the end in the same direction as the same direction component in the drum housing, no tension is applied to the wire passing through the guide part, and the same The wire is characterized in that a tension is applied to the wire when the wire is moved toward the end in a direction opposite to the direction component.

In the scope of the utility model registration claim, "directions having the same directional component" means two wires led in opposite directions (directions in which the directions of both wires make 180 degrees to each other). This means excluding only cases.

[Function] In the present invention, since a space is provided in the drum housing to allow the winding drum to be moved, the winding drum can be moved to the ends of the two wires in the same direction in the drum housing. Tension can be applied evenly to the two wires by wrapping the wire around the winding drum tightly at the offset position, and then moving the winding drum toward the end in the direction opposite to the same direction component. Therefore, according to the present invention, the drive device can be assembled without requiring any particular adjustment process.

[Example] Next, embodiments of the present invention will be described.

Fig. 1 is a front view of a drum casing according to an embodiment of the present invention, Fig. 2 is a perspective view of the drum casing, Fig. 3 is a diagram showing the shape of the storage section of the drum casing, and Figs. 4 and 5. 1 and 2 are cross-sectional views taken along the - line in FIG. 1, showing the state of the winding drum during and after assembly, FIG. 6 is a perspective view of the winding drum, and FIG. 7 is a view of the winding drum. FIGS. 8 and 9 are front views showing other examples of the regulator, and are views showing states during and after the winding drum is assembled in the drum casing according to another embodiment.

In Figures 1 and 2, 1 is a drum casing;
2 is a drum storage section, and 3 is a guide section.

The drum storage section 2 is a recess for storing a winding drum for wire winding, and is surrounded by a bottom wall 11 and a peripheral wall 12, and is closed with a lid (not shown). Further, a bearing 23 is formed on the bottom wall 11, and a partition wall 25 is formed on the bottom wall 11 inside the peripheral wall 12 so as to form a groove 24.

Here, the winding drum accommodated in the storage section will be explained based on FIG. 6. The winding drum 4 has a winding trunk 13 and a flange 14, and a circumferential rib 15 is formed on the back surface of the flange 14. Winding trunk 13
Both the flange 14 and the flange 14 have a traditional configuration, and are in the shape of a perfect circular cylinder and a perfect circular disk. A hole 16 for passing the handle shaft is formed in the center of the winding trunk 13, and a locking protrusion 17 is formed on the end surface of the winding trunk 13 for restraining free rotation of the handle shaft. Further, end locking portions 18 and 19 for the wires 5 and 6 are formed on the end face of the winding drum 13 and the surface of the flange 14, and a terminal nipple 21 of the wire 5 and a terminal nipple 22 of the wire 6 are respectively locked. has been done. wires 5, 6
The wires 5 and 6 are wound around the winding trunk 13 in opposite directions, and the other ends of both wires 5 and 6 are connected to a carrier as shown in FIG. Therefore, although there are two wires 5 and 6 in form, functionally it can be considered that one wire is wound in a closed loop.

FIG. 3 shows the shape of the drum storage section 2. As shown in FIG. The peripheral wall 12 of the drum storage portion 2 has a shape in which a semicircular arc a with a radius r centered on the center O ₁ and a semicircular arc b with a radius r centered on the center O ₁ are connected by straight lines c and d. Therefore, the horizontal diameter (2·r) of the drum storage portion 2 is slightly larger than the diameter of the flange 14 of the winding drum 4, and the vertical diameter is slightly larger than the diameter of the flange 14 of the straight portions c and d. The length is longer than the horizontal diameter. This elongated portion serves as a space for moving the winding drum 4. As shown in FIG. 1, the bearing 23 is formed so that its center is located at the center _O1 .

As shown in FIGS. 1 and 2, the guide portion 3 is provided connected to the upper semicircular portion of the drum storage portion 2. As shown in FIGS. This guide part 3 is a first part for passing the wire 5 through.
It consists of a guide groove 27, a first cylindrical part 28, a second guide groove 29 for passing the wire 6, and a second cylindrical part 30, and the first guide groove 27 and the second guide groove 29 are formed in parallel.

Next, the assembly procedure of the present invention will be explained. FIG. 4 shows the state during assembly. The winding drum 4 is pushed toward the upper end within the drum storage section 2. Assembling work is performed in this state, and the wires 5 and 6 passed through each guide groove are wound around the winding drum 4. Note that the conduit 7 of the wire 5 is inserted into the first cylindrical portion 28 via a cap 31, and is supported by a spring 32 for applying tension to the wire 5. A similar support structure is used for the wire 6 as well. In this state, the wires 5 and 6 are only connected to the drum 4, and even tension is not yet applied to both wires 5 and 6.

Then, as shown in FIG.
Press down. In this way, since the wires 5 and 6 are connected in a substantially closed loop, tensions in opposite directions act on both wires 5 and 6, and tensions of equal magnitude are applied to the wires 5 and 6. It comes to work. Then, by inserting the handle shaft 8 into the hole 16 of the winding drum 4 and the bearing 23, assembly and tension adjustment are completed. The handle shaft 8 has an insertion portion 34 inserted into the bearing 23 at the tip, a spline portion 35 for fixing the handle at the base end, and a protrusion 36 that engages with the protrusion 17 of the drum 4 in the middle. Therefore, when the assembled state as shown in the figure is reached, by rotating the handle shaft 8, the winding drum 4 can be rotated freely.

Next, another embodiment will be described.

As shown in FIG. 7, some wind regulators have wires 5 and 6 extending separately from a driving device 50 toward both ends of a driven device 60 and arranged in a substantially triangular shape. The drum casing of the present invention can also be applied to the drive device in this type of wind regulator.

The explanation will be given below based on FIGS. 8 and 9.

In this embodiment, guide portions 3a and 3b extend in a V-shape with respect to the drum casing 1. The wires 5 and 6 wound around the winding drum 4 are connected to the guide portion 3.
a, 3b. The drum storage section 2 has an oval shape similar to the embodiment described above, and is elongated in the vertical direction in the figure. In the state during assembly shown in Figure 8,
The winding drum 4 is moved toward the lower end inside the drum storage section 2. Assembling work is performed in this state, and the wires 5 and 6 passed through the respective guide portions 3a and 3b are wound around the winding drum 4. In this state, wire 5,
6 has only been connected to the drum 4, and both wires 5 and 6 are not yet under equal tension.

Then, as shown in FIG.
is pushed upward in the figure. In this way, the wires 5, 6 are connected in a substantially closed loop, so that both wires 5, 6 are subjected to tensions in slightly opposite directions, and an equal magnitude of tension is applied to the wires 5, 6. comes into play. After that, the handle shaft is inserted and assembled in the same manner as in the previous embodiment, and by rotating the handle shaft 8, the winding drum 4 can be rotated freely.

In the above two embodiments, the drum storage section 2 has an oval shape, but is not limited to this, and may have an oval shape or other shapes. That is, the winding drum 4 is connected to the wires 5 and 6.
Any shape is acceptable as long as it can be moved between a position where tension can be applied and a position where tension can be loosened.

[Effects of the invention] According to the invention, the tension of the wire can be adjusted at the same time as the assembly work, so the assembly man-hours are shortened, and
Since an adjustment screw mechanism or the like is not required, the height of the drive device can be reduced.

[Brief explanation of drawings]

Fig. 1 is a front view of a drum casing according to an embodiment of the present invention, Fig. 2 is a perspective view of the drum casing, Fig. 3 is a diagram showing the shape of the storage section of the drum casing, and Figs. 4 and 5. 1 and 2 are cross-sectional views taken along the - line in FIG. 1, showing the state of the winding drum during and after assembly, FIG. 6 is a perspective view of the winding drum, and FIG. 7 is a view of the winding drum. A front view showing another example of the regulator, FIGS. 8 and 9 are views showing states during and after the winding drum is assembled in a drum casing related to another example, and FIG. 10 is a wind regulator. FIG. 2 is a perspective view showing the basic configuration of a turator and a conventional drive device. Main symbols in the drawing, 1...Drum casing, 2
... Drum storage section, 3 ... Guide section, 4 ... Winding drum, 5, 6 ... Wire, 8 ... Handle shaft,
23...Bearing.

Claims (1)

[Scope of utility model registration request] The drum casing of the wind regulator drive device includes a drum storage portion that accommodates a cylindrical wire winding drum, and two wires wound around the winding drum that are arranged in the same direction. a guide portion for guiding the winding drum to the outside in a direction having the same direction component, and a space is provided in the drum storage portion to allow the winding drum to move in the same direction and in the opposite direction to the same direction component; When the pick-up drum is located near the end in the same direction as the same direction component in the drum storage section, and no tension is applied to the wire passing through the guide section, and the drum is moved toward the end in the opposite direction to the same direction component. A drum casing configured to apply tension to the wire.