JPS6334224A - Position detecting device for closing member - Google Patents

Abstract

PURPOSE:To decrease the number of necessary components, by meshing an external gear fitted on an eccentric shaft, with an internal gear having a tooth number less than that of the external gear, and by providing a control section for controlling detection switches on the outer periphery of the internal gear. CONSTITUTION:An external gear 39 eccentrically moves in association with the rotation of an eccentric shaft 37, and therefore, an internal gear 45 is rotated by a predetermined amount. Further, when the internal gear 45 comes to a set position, a control section 47 turns on switches ST1, ST2. Accordingly a drive motor 7 comes to a stop so that the lid 1 may be completely closed or opened. Therefore, with the provision of the above-mentioned position detecting device, the position of the gear may be detected without using a cam plate, thereby is possible to reduce the necessary number of components and to aim at enhancing the man-hours of assembly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention relates to an intermediary detection device for opening/closing bodies such as lids or window panels suitable for IJ' roofs of automobiles.

[Prior art 1] Conventionally, for example, the lid of a linux is supported by a shim that is slidable along a guide rail, and a drive cable is connected to the shim, and the lid is connected to a drive motor. It has a structure in which the lid is opened and closed via a shoe by pushing and pulling.

[Problem to be Solved by the Invention 1] As described above, the lid is opened and closed by the drive cable, but the fully open position and the full position of the lid are detected by a detection switch such as a microswitch.

Conventional known means for detecting the position of the lid using a detection switch include, for example, Japanese Patent Application Laid-Open No. 558-30830.
The one described in the publication No. 1 is known.

This conventional position detection means has a cam plate attached to the drive shaft interlocked with the IY roof drive motor via a Kl-I V reduction gear, and a micro switch that cooperates with the cam surface of the cam plate. 4 No roof fully closed and fully open f1
71 is detected.

The Kl-I V reduction gear A7 consists of an external tooth width mounted on the drive shaft and an internal gear that meshes with the external tooth width and has one more tooth than the external gear. Furthermore, since the cam plate is equipped with a cam, the number of main components increases, which is undesirable from the viewpoint of structure and assembly man-hours.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a position detection device for an opening/closing body that is preferable in terms of structure and assembly man-hours by reducing the number of main components.

[Means for Solving the Problems] In order to achieve the above object, the present invention includes an eccentric shaft that is conductively connected to the power transmission mechanism of the opening/closing body and rotated by a drive motor, and an eccentric shaft that is mounted on the eccentric shaft. an external gear which can be displaced by a predetermined amount by rotation of an eccentric shaft; an internal gear which meshes with the external gear, has at least one more tooth than the external gear, and has a control section on its outer periphery; and a detection switch that is controlled to be turned on or off by the control section.

[Function] The main components of such a device include an eccentric shaft rotated by a drive motor, an external gear attached to the eccentric shaft, and an internal gear with a sizing mechanism that meshes with the external gear and has a control section on its outer periphery. and a detection switch that is turned on and off by the control unit, making it possible to omit the conventional cam plate.
Silk (=I l:J becomes easy.

Moreover, since the number of parts is reduced, the structure is simpler.

[Embodiment] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings of FIGS. 1 to 10.

In FIG. 4, reference numeral 1 indicates a lid installed in the roof frontage 3, and the lid 1 is interlocked with a drive motor 7 via a guard wire 5.

The drive motor 7 can be rotated forward and reverse by a hand switch (not shown), and is located inside the roof 9, with the motor axis X along the vehicle width direction, and is located at the flange 15 of the gear case 13 that houses the power transmission mechanism 11. It is fixed with bolt 17.

A worm 21 is provided on the output shaft 19 of the drive motor 7, and a worm oil 23 is provided on the output shaft 19 of the drive motor 7.
They interlock at right angles.

The worm oil 23 is connected to the first gear shaft 27 of the first gear 25.
The first gear 25 is pivotally connected to the second gear 31 via an intermediate gear λ729.

The second gear shaft 33 of the second gear 31 projects outward from the gear case 13, and a sliding drive gear 35 is fixed to the projecting end 33a.

The drive gear 35 meshes with the gear portions of the guard cables 5, 5, and the lid 1 can be opened and closed by the gear A7-dwire 5, 5, which moves with forward or reverse rotation of the drive gear 35.

The first gear shaft 27 of the first gear 25 is provided with an eccentric shaft 37 protruding from the gear case 13, and the eccentric shaft 37 is connected to the first gear shaft 27.
It is deviated by α from the axis W of the gear shaft 27.

An external gear 39 having gears on the outer periphery is attached to the eccentric shaft 37, and a protruding pin 43 protruding from the gear case 13 is engaged with the engagement holes 41, 41 provided at the front and rear with a desired amount of play. It matches. As a result, the external gear 39 moves by the eccentric position α of the eccentric shaft 37 due to the rotation of the eccentric shaft 37.

In this case, the external gear 39 is prevented from rotating around the first gear shaft 27 by the protruding pin 713, but is allowed to revolve (swing) due to the play and the eccentric shaft 37.

The relationship between the protruding pin 43 that supports the external gear 39 on the gear case 13 and the engagement hole 41 is as shown in FIG. It is also possible to engage the engagement hole 41 provided in the gear case 39 with a desired amount of play.

On the other hand, the external gear 39 has an internal gear 1' pivotally connected to the upper part of the first gear shaft 27! 5 meshes, and the internal gear 4
The number of teeth of 5 is set to one more tooth than the number of teeth of external gear 39,
The internal gear 45 moves 1 times by the displacement movement of the external gear 39.
It will start rotating by the amount of teeth.

That is, the rotation directions of the three internal gears are rotated forward and reverse through the external gear 39 by the clockwise and counterclockwise rotations of the eccentric shaft 37.

Further, on the outer periphery of the internal gear 45, concave control portions 47 and 4 are provided.
7 is provided in two places on the upper and lower sides, and the gas case 39 is provided with a first
-Second detection switches ST+ and ST2 are provided respectively.

1st and 2nd detection switch S - ST2 is a position detection switch for fully closing the door and fully opening the lid in this embodiment, and the switch terminals S1 and S2 of each detection switch ST+ and ST2 are controlled. By contacting the parts 47, 47, the operation of the drive motor 7 is stopped, and the lid 1 can be fully opened and the fully open position can be obtained.

d3.49 is a manual shaft provided on the first gear shaft 27, and the key protrusion 53 is normally pressed by the biasing spring 51 by Δ-1.
1 wheel 23 is set at a position where they engage with each other. As a result, the worm wheel 23 and the 2117th shaft 27 are integrated through the key protrusion 53; The engagement between the wheel 23 and the second gear shaft 27 is released, and the operation of the drive gear 35, that is, the guard wire A75.5 can be manually controlled.

In this A◇ direct detection device for the opening/closing body configured as shown in FIG. Move and slide lid 1.

On the other hand, due to the rotation of the eccentric shaft 37, the external tooth width 39 is displaced (1 hole v
j) Exercise. Due to this displacement movement of the external tooth width 39, the internal gear 45 that meshes with the external gear 39 rotates a predetermined portion.

When the set position is reached, the control unit 47 controls the first position.
Alternatively, the second detection switch ST+-8T2 is turned on. As a result, the drive motor 7 is stopped and the lid 1 is moved to the closed or fully open position by 1q. Type 1 components of the position detection device in this case are an eccentric shaft 37 rotated by a drive motor 7, and an external tooth width 3 mounted on the eccentric shaft 37.
9 meshes with the external gear 39 and controls the control section 47 at the same time.
Since the conventional cam plate can be omitted, the number of assembly parts can be simplified. Also, since there are fewer parts, the structure is easier to inspect.

FIGS. 9 and 10 show modified examples of the mounting position of the detection device. That is, the external gear 39 is attached to the eccentric shaft 37, and the internal gear 45 having the control section 47 is engaged with the outer periphery of the three external gears, which is the same as in the previous embodiment, but the eccentric shaft 37 is It is fixed to an eccentric shaft drive gear 57 that meshes with the first gear 25. Thereby, the height i'' from the bottom of the gear case 13 to the internal gear 45 can be set small. As a result, the space occupied inside the roof becomes smaller, making it possible to raise the interior ceiling.

Furthermore, by attaching the flange 15 to the main body of the gear case 13 so as to be inclined by 0 minutes along the roof 9 as shown in FIG. 7, the gear case 13 can be moved toward the roof 9 side (upward in FIG. 7). The result is the same as in Figure 10 (L+ -(1
+) It becomes possible to raise the ceiling in the branch room.

In this case, if the height of the ceiling remains the same as before, the gear case 13 can be shifted toward the roof 9 side, making it possible to move forward as shown in FIG. It is now possible to move forward, and the roof can be opened wide enough to open 1]3.

In addition, the space (4 is limited to the lid, so there are 4 rooms compared to t, and the width is 1wW; for example, the window glass in my city is t).

[Effects of the Invention] As explained above, the opening/closing body of the present invention has the following advantages: 1) If the opening/closing body of the present invention is used, the number of main components can be reduced compared to the conventional one. Not only can this be done, but the announcement will also be concise.

[Brief explanation of the drawing]

FIG. 1 shows the first position detecting device for an opening/closing body according to the present invention.
This is an embodiment, and FIG. 3 is a sectional view taken along the line T-'IX. FIG. 2 is a sectional view taken along the line n-X of FIG.
The figure is a plan view of the state in which it is applied to a lin roof, and Figure 5 is an external view.
! A sectional view showing another embodiment of the engagement means having a south width of 21;
Figure 6 is a sectional view taken along the line Vl-Vl in Figure 4, Figures 7 and 8.
Fig. 1 is a cross-sectional view similar to Fig. 6 showing a modification of the position detection device (=Ht); Fig. 9 is a second embodiment of the present invention; Front view, Figure 10 is Figure 9
It is a sectional view taken along the line XX in the figure. Explanation of main drawing symbols 1... Opening/closing body 7... Drive motor 11... Power transmission mechanism 37... Eccentric shaft 39... External gear 45... Internal gear 47... Control Department

Claims (1)

[Claims] An eccentric shaft that is conductively connected to a power transmission mechanism of the opening/closing body and rotated by a drive motor, an external gear that is attached to the eccentric shaft and can be displaced by a predetermined amount by rotation of the eccentric shaft, and the external tooth width. A position detection device for an opening/closing body comprising an internal gear that meshes with the internal gear, has at least one more tooth than the external gear, and has a control section on its outer periphery, and a detection switch that is controlled to be turned on and off by the control section. .