JPH09318467A - Powered window-opening/closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow sure action of a pressure-sensitive tube sensor to the action direction of a wide external force, relating to a power window comprising a pinching-prevention mechanism. SOLUTION: Facing surfaces 42a and 43a of both band-like electrodes 42 and 43 are so bent that a cross-section shape becomes a protruded shape in the open direction side of a window glass 2. With this, against the external force from an arbitrary direction, drop of external force component acting at a right angle on both facing surfaces 42a and 43a and increase of external force component acting, in tangent line direction, to both facing surfaces 42a and 43a are suppressed. Thus, to a wide acting direction of external force, both facing surfaces 42a and 43a contact to each other with sure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power window opening and closing device (power window) for a vehicle, and is effective when applied to a power window having an anti-jamming mechanism.

[0002]

2. Description of the Related Art As a structure of a power window having a trapping prevention mechanism, for example, there is a device described in Japanese Utility Model Laid-Open Publication No. 64-53389. According to this invention, a sensing means such as a pressure-sensitive tube sensor for sensing an external force is provided along the indoor side edge of the window frame, and the external force caused by the foreign material sandwiched between the window glass and the window frame is detected by the sensing means. Then, the drive motor for raising and lowering the window glass is stopped.

As the sensing means 4, for example, Japanese Patent Laid-Open No. 7-
In Japanese Patent Publication No. 141958, as shown in FIG. 6, a pair of strip electrodes 42, 43 are arranged side by side on the same surface side of the inner circumference of the tube 41, and stranded conductors 42a, 43a are embedded in these strip electrodes 42, 43, respectively. In addition, a belt-shaped electrode 43b has been devised, which is provided on the inner peripheral surface of the tube 41 on the opposite surface side so as to be in contact with the belt-shaped electrodes 42 and 43 when the tube 41 is pressed and deformed so as to establish conduction between them.

[0004]

The direction of the sandwiching external force in the power window or the like changes depending on the relative positional relationship between the window frame and the window glass and the sensing means, but is perpendicular to the sensing means (see FIG. 6). It is rare to apply from the up and down direction, and external force often acts from the diagonal lateral direction.

On the other hand, the sensing means described in the above publication has the strip electrode 43 provided on the opposing surfaces of the strip electrodes 41 and 42.
Since b is made conductive by contacting the strip electrodes 41, 42, the strip electrodes 41, 42, 43b
On the other hand, when an external force is applied obliquely in the lateral direction, the external force component that acts at a right angle on the strip electrodes 41, 42, 43b is reduced, so the force pressing the tube 41 is reduced. On the other hand, since the external force component acting in the tangential direction of the strip electrodes 41, 42, 43b becomes large, the strip electrodes 41, 42 or the strip electrode 43b are displaced laterally. Therefore,
Depending on the acting direction of the external force, the strip electrodes 42, 43 and the strip electrode 43b may not come into contact with each other when the tube 41 is pressed and deformed.

In view of the above points, it is an object of the present invention to reliably actuate a sensing means in a wide external force acting direction in a power window having a trapping prevention mechanism.

[0007]

The present invention uses the following technical means in order to achieve the above object. Claim 1
In the invention described in 3, the opposing surfaces (42a, 43a) of the strip-shaped electrodes (42, 43) of the sensing means (4) have a window body (2) having a cross-sectional shape of the opposing surfaces (42a, 43a). Is bent so as to be convex toward the opening direction side.

As a result, in response to an external force from any direction,
It is possible to suppress a decrease in the external force component acting at right angles to the facing surfaces (42a, 43a) and an increase in the external force component acting in the tangential direction of the facing surfaces 42a, 43a. Therefore, the both facing surfaces 42 are surely secured against the action direction of a wide external force.
a and 43a can be contacted. Claim 2
As in the invention described in the above paragraph, the sensing means (4) is connected to the window body (2).
It may be inserted in a weather strip (5) that seals the gap between the window frame (3) and the window frame (3).

According to the third aspect of the invention, the weather strip (5) is characterized in that the inner wall of the weather strip (5) is formed with a projection (51) projecting toward the sensing means (4).
As a result, the surface pressure acting on the tube (41) increases, so that the sensing means (4) can be operated more reliably. The insulating member may also serve as the weather strip (5).

Incidentally, the reference numerals in the parentheses of the above-mentioned means indicate the corresponding relations with the concrete means described in the embodiments described later.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention shown in the drawings will be described. (First Embodiment) FIG. 1 shows a vehicle door having a powered window opening / closing device (power window mechanism) having a pinching prevention mechanism. Reference numeral 1 denotes a window glass (window body) 2 for opening / closing a window opening 3a. A drive motor for driving up and down, and 3 is a window frame that defines the window opening 3a. A single pressure-sensitive tube sensor (sensing means) 4 that senses an external force is arranged on the indoor side edge of the window frame 3 from the front side portion 3a to the upper side portion 3b of the window frame 3. This pressure-sensitive tube sensor 4
As shown in FIG. 2, it is inserted in a weather strip 5 that seals the gap between the window glass 2 and the window frame 3.

Reference numeral 5a is a metallic core material for increasing the mechanical strength of the weather strip 5, and this core material is usually bent along the cross-sectional shape of the window frame 3. The pressure-sensitive tube sensor 4 emits a signal 4a when an external force of a predetermined value or more acts, and when the signal 4a is emitted,
The signal 4a is input to the control device 6. And signal 4
When a is input, the control device 6 issues a stop signal 6a to the drive motor 1 so as to stop the lifting and lowering of the window glass 2 (see FIG. 1). With the configuration described above, the closing movement stopping means for stopping the movement of the window glass 2 in the closing direction is formed.

By the way, as shown in FIG. 2, the structure of the pressure-sensitive tube sensor 4 is such that a long tube (insulating member) 41 made of an elastically deformable material such as a rubber tube is provided on an inner peripheral wall of the tube 41 so that the length of the tube 41 is long. Two strip plate-shaped electrodes 42 and 43 made of a conductive rubber material that extend in the direction and face each other with a predetermined distance in the tube 41 are provided. The conductive rubber material is a rubber material mixed with a conductive material such as metal.

A gap 44, which serves as an insulating portion, is formed between the facing surfaces 42a, 43a of the strip-shaped electrodes 42, 43, and the facing surfaces 42a, 43a have a cross-sectional shape of the window glass 2. The core material 5a is formed so as to be convex toward the opening direction side.
Is bent along. Both strip plate electrodes 42, 43
A predetermined voltage is applied in between, and when the opposing surfaces 42a and 43a come into contact with each other as the tube 41 is deformed by an external force, that is, when the distance between the opposing surfaces 42a and 43a is reduced and changed, the signal 4a is transmitted. Is emitted.

Next, the features of this embodiment will be described. According to the present embodiment, since the facing surfaces 42a and 43a are bent so that their cross-sectional shapes are convex toward the opening direction side of the window glass 2, the facing surfaces 42a and 43a face each other against an external force from an arbitrary direction. Surface 4
It is possible to suppress a decrease in the external force component acting at a right angle to 2a, 43a and an increase in the external force component acting in the tangential direction of the opposing surfaces 42a, 43a. Therefore, the opposing surfaces 42a and 43a can be surely brought into contact with each other in the action direction of a wide external force.

Further, the cross-sectional shape of the pressure-sensitive tube sensor 4 is bent along the core material 5a to form a recess 4 on the core material 5a side.
5 (see FIG. 2), the recess 45 facilitates positioning when inserting the pressure-sensitive tube sensor 4 into the weather strip 5. As a result, assembling workability is improved, so that it is possible to reduce the manufacturing cost of the power window having the pinch prevention mechanism.

Further, since the concave portion 45 of the pressure-sensitive tube sensor 4 is assembled so as to sandwich the window frame 3, even if an external force is applied from the longitudinal direction of the pressure-sensitive tube sensor 4 (window frame 3), the pressure-sensitive tube sensor 4 can be sensed. It is possible to suppress the problem that the pressure tube sensor 4 is displaced in the external force direction. (Second Embodiment) In the first embodiment, the strip plate electrodes 42 and 43 are arranged in the tube 41 forming the insulating member, but in the present embodiment, the tube 41 is eliminated as shown in FIG. The weather strip 5 constitutes an insulating member.

As a result, the strip-shaped electrodes 42 and 43 can be formed and arranged at the same time when the weather strip 5 is formed (extrusion molding), so that the pressure-sensitive tube sensor 4 is weathered as in the first embodiment. The step of inserting the strip 5 can be omitted. Therefore, it is possible to reduce the manufacturing cost together with the fact that the material cost can be reduced due to the elimination of the tube 41.

(Other Embodiments) By the way, according to the present invention, as shown in FIG.
The present invention can be implemented by forming a plurality of protrusions 51 protruding toward the pressure-sensitive tube sensor 4. As a result, the surface pressure acting on the tube 41 increases,
The pressure-sensitive tube sensor 4 can be operated more reliably.

Further, in the space 44 of the pressure sensitive tube sensor 4, a foamed resistor or the like whose resistance value changes according to the pressure (stress) acting on itself may be arranged. Further, in the above-described embodiment, the cross-sectional shape of the pressure-sensitive tube sensor 4 is bent in a substantially U shape, but it may be bent in a substantially J shape as shown in FIG. 5 illustrates the pressure-sensitive tube sensor 4 according to the first embodiment as an example, the present modification is not limited to this, and the pressure-sensitive tube sensor 4 according to the second embodiment is used. Good.

[Brief description of drawings]

FIG. 1 is a schematic view showing an outline of a power window mechanism of the present invention.

FIG. 2A is a sectional view (sectional view taken along the line AA of FIG. 1) of the pressure-sensitive tube sensor according to the first embodiment, and FIG. 2B is an enlarged view of a portion B of FIG.

3A is a sectional view (corresponding to the sectional view taken along the line AA of FIG. 1) of the pressure-sensitive tube sensor according to the second embodiment, and FIG.
[Fig. 3] is an enlarged view of a B part in (a).

FIG. 4 is a cross-sectional view showing another embodiment.

FIG. 5 is a cross-sectional view showing another embodiment.

FIG. 6 is a perspective view of a sensing means according to the related art.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Drive motor, 2 ... Window glass (window body), 3 ... Window frame, 4
... Pressure-sensitive tube sensor (sensing means), 5 ... Weather strip, 6 ... Control device, 41 ... Tube (insulating member), 4
2, 43 ... Strip plate electrodes, 42a, 43a ... Opposing surfaces, 44
... voids.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location G01V 9/00 4235-5G H01H 13/52 D H01H 13/18 B60J 1/16 A 13/52 1 / 17 A

Claims (4)

[Claims] 1. A window body (2) which opens and closes a window opening (3a) formed by a window frame (3), and a sensing means which is arranged on the inner peripheral edge of the window frame (3) and senses an external force. (4) and closing movement stopping means (1, 6) for stopping movement of the window body (2) in the closing direction when the external force detected by the detection means (4) exceeds a predetermined value. In the powered window opening / closing apparatus, the sensing means (4) includes a long elastically deformable insulating member (41, 5) arranged along the window frame (3), and the insulating member (41). 5) and two strip plate electrodes (42, 43) each having a facing surface (42a, 43a) facing each other at a predetermined distance in the insulating member (41, 5). The sensing means (4) comprises the insulating member (4) by an external force.
1, 2) when the two strip-shaped electrodes (42,
43) an external force is sensed by a change in the distance between the two strip plate electrodes (42, 43), and the opposing surfaces (42) of the strip plate electrodes (42, 43).
a, 43a) is bent such that the cross-sectional shape of the facing surfaces (42a, 43a) is convex toward the opening direction side of the window body (2). . 2. The sensing means (4) comprises the window body (2).
2. The powered window opening / closing device according to claim 1, which is inserted in a weather strip (5) that seals a gap between the window frame (3) and the window frame (3). 3. A projection (5) projecting toward the sensing means (4) on the inner wall of the weather strip (5).
The powered window opening / closing apparatus according to claim 2, wherein 1) is formed. 4. The insulating member is formed of the strip-shaped electrodes (4).
The power-operated window opening / closing device according to claim 2 or 3, wherein the power-operated window opening / closing device has the inside of (2, 43) and also serves as the weather strip (5).