JPS6071319A - Power window system for vehicle - Google Patents

Abstract

PURPOSE:To prevent an obstacle from being forcibly pressed, by a method wherein, when the obstacle is caught in, a pressure detector, located to the peripheral end of the closing side of a window, detects it and immediately stops raising of a glass window. CONSTITUTION:A glass window 2 is adapted to be capable of being contained in a door 1, and link mechanisms 3a-3d are elevated in conformity with movement of the arm member 3a. With a motor 4 run, a rotation force is exerted on the arm member 3a by a gear 5 transferring the rotation of the motor. The motor 4 is forwardly or reversely run through the output of a controller 6, and the output of a pressure detector 7, made of pressure-sensitive rubber, is transmitted to the controller 6 through a lead wire 6a having flexibility. The pressure detector 7 is fastened to the peripheral end of the window 2 by means of adhesive, and when some obstacle is present between a weather strip and the detector 7, a pressure is exerted to output a signal.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is an automatic opening/closing device for a power window system for a vehicle, which detects the obstruction of a part of a human body or the like and stops opening the window. Or it is related to the safety device that lowers it.

〔background〕

In a vehicle power window system that opens and closes the window using a motor drive, the window can be easily opened and closed by operating a switch. On rare occasions, a passenger or a passenger's body was caught between the vehicle and a part of the vehicle.

[Purpose of the invention]

In order to solve this problem, the present invention installs a pressure sensor in a shape (jf) on part or all of the peripheral edge of the window facing the window frame portion or body part of the vehicle, and also installs a pressure sensor in a shape of JF. The present invention is characterized in that a means is provided which is actuated by an electric signal generated in the pressure detecting body when an object exerts pressure, thereby stopping opening of the window.

In the present invention, the pressure sensing body is made of, for example, pressure sensitive rubber, which is one of the semiconductor resin materials whose development has been remarkable in recent years. For example, pressure-sensitive rubber is used that has the characteristic that when the pressure between both sides of a flat rubber plate is zero, the resistance value is almost infinite, and when pressure is applied, the resistance value decreases significantly. .

〔Example〕

The present invention will be explained below based on illustrated embodiments.

FIG. 1 shows a first embodiment of the present invention, and is a view of the right side door of an automobile as viewed from inside the vehicle. In this embodiment, the vehicle is of a type in which the door is not provided with a window frame, and the structure is such that the glass window and the body are brought into contact when the window is closed. In the figure, 1 is the right door, 2 is the glass window that can be stored in that door,
3a, 3b, 3c, 3d are link mechanisms and arm members 3a
The glass window 2 is raised and lowered (opened and closed) as the window rotates. A rotational force is applied to the arm member 3a by a gear 5 that transmits the rotation of the motor 4.

Then, the motor 4 rotates forward and reverse according to the output of the controller 6,
During normal rotation, the glass window 2 rises, and during reverse rotation, it descends. Details of the controller 6 are illustrated in FIG. The output of a pressure detector 7 made of pressure-sensitive rubber is transmitted to the controller 6 via a flexible lead wire 6a, and the structure of the pressure detector 7 is shown in detail in Figure 2. It is illustrated.

FIG. 2 is an enlarged sectional view showing details of the abutted portion in FIG. 1. This figure shows the glass window 2 raised to the top and closed, and in the illustration,
The right side of the glass window 2 is the interior of the vehicle, and the left side is the exterior of the vehicle. 8a, 8b, 8c.

8d and 8e are parts of members forming the body of the automobile. A weather strip 9 is made of foamed urethane rubber to seal the contact area when the glass window 2 is closed. Reference numeral 10 denotes a fixing metal fitting which is welded to the body side member 8b and which engages and fixes the weather strip 9.

Reference numeral 11 denotes a member called a garnish that is attached to a body member and is used to soften the impact applied to the human body during a vehicle collision. The pressure detector 7 is fixed to the peripheral edge of the glass window 2 over an area not shown in FIG. 1 with an adhesive or the like.

FIG. 3 shows the pressure sensing body 7 having a sandwich structure of the first electric Fs 30, pressure sensitive rubber 31, and second electrode 32. FIG. 5 shows the details of the controller 6 and the connection point with the force sensing body 7. The output voltage Va appearing at is applied to one input terminal of the comparator 2I.

A reference voltage vb from a reference voltage generator 21a is applied to the other input terminal of the comparator 21, and the comparator 21 receives an output signal Vc whose output level is switched between activated and deactivated according to the comparison result of the two input voltages. occurs.

22 is an 8NL) element which outputs the output signal Vc of the comparator 21.
and the switch signal Vd of the up switch 23 are input, and an output signal Ve corresponding to the AND of the two signals is generated. 24 is a first relay, and 25 is a second relay. The first relay 24 contacts 24a and 24b when the output signal Vd of the amplifier switch 23 is at the activation level.
is closed, and at that time, an energizing level appears at the output side contact V[, and a deenergizing level appears at the output side contact Vg. The second relay 25 has contacts 25a, 25'b, 25c, 25d, and
When the output signal of the element 22 is at the energizing level, the contact 25b,
25c is closed, and a current flows from the output side contact Vi to vh, thereby causing the motor 26 to rotate in the normal direction and raising the glass window (2).

27 is a down switch which has a mechanical configuration that can be closed only when the up switch 23 is open, and when it is closed, it generates an output signal Vj that is at the energizing level, and at that time energizes the third relay 28, The contacts 28a and 28b are closed. At this time, the output contacts Vk and v7 of the third relay 28! At , a current flows from the contact VA to the contact Vk to the motor 26, thereby causing the motor 26 to reverse and lower the glass window 2. In addition, 1. In the second and third relays 24, 25, and 28, the respective relay coils are not numbered for convenience.

The operation of the device with the above configuration will be explained below. In FIG. 1, a glass window 2 is raised and lowered by a controller 6. In FIG. In this case, the up switch 23 (
When the down switch 27 is closed, the motor 4 (26) rotates in the forward direction and the force glass window 2 continues to rise. When the down switch 27 is closed, the motor 4 (26) rotates in the reverse direction and the glass window 2 continues to rise. Dor 2 descends.

In this case, if some obstacle is interposed between the weather strip 9 and the pressure sensor 7 while the glass window 2 is being raised, pressure will be applied to the pressure sensor 7. Since the case 33 of the pressure detector 7 is easily deformable as shown in FIGS. 3 and 4, the pressure applied to the pressure detector 7 is transmitted to the pressure sensitive rubber 31 via the second electrode 32. When pressure is applied to the pressure sensitive rubber 31, the resistance changes from an insulating state where the resistance value is almost infinite to a substantially energized state where the resistance value is extremely small. Therefore, the first electrode 30 and the second electrode @
32 is in a conductive state.

Therefore, the input voltage Va of the comparator 2I in FIG. 5 becomes smaller than the reference voltage IEVb, and the output of the comparator 21 becomes the energizing level. At this time, the up switch 23
is closed, the output signal Ve of the AND element 22 also becomes the energizing level, and the second relay 25 is energized. As a result, current flows through the motor 26 (4) from the output terminal Vi in the direction of vh, and as a result, the motor 26 rotates in reverse. Therefore, in figure ff11, glass window 2 is connected to motor 4.
It descends in conjunction with the rotation of.

FIG. 6 is an example showing another configuration of the pressure detecting body 7, 37
is the first electrode, 38 is the pressure sensitive rubber, 39 is the second electrode, 4
0 is the case, but case 4° is the glass window 2
It can be installed by fitting it into the

Note that the case 40 may be made separately from the glass window 2 and fixed by being fitted therein, or may be fixed in this shape by welding. Even if the pressure sensing body shown in FIG. 6 is used, the same operation as in the previous embodiment can be obtained, but a stronger bond between the glass window 2 and the pressure sensing body 7 can be obtained.

7 and 8 show still another embodiment t+17
) 't', 41 is a first electrode, 42 is a pressure sensitive rubber, 43 is a second electrode, 44 is a case, and 45 is a filler. The case 44 and the filler 45 are made of elastic materials, but the filler 45 has a softer elasticity than the case 45. As a result, pressure applied from the outside of the case 44 is concentratedly transmitted to the pressure sensitive rubber 42, making the pressure sensitive rubber 42 more sensitive.

FIG. 9 shows still another embodiment of the pressure sensitive body, in which the inner circumferential surface of the case 44 in the example shown in FIGS. 4
4) and the soft member (45) alternately. Therefore, the pressure applied from the outside is concentrated on the pressure sensitive rubber 42, thereby further increasing the sensitivity of the pressure detector. Furthermore, this! The same effect can be obtained by omitting the filler 45 in the example shown in FIG. 89 and making it hollow.

FIG. 10 shows yet another embodiment of the pressure sensor, in which 46 is a first electrode, 47 is a pressure sensitive rubber, and 48 is a second electrode.
49 is a case, and 5o is a filling material. In this example, the voltage applied to the first electrode 46 is applied to the pressure sensitive rubber 47
is applied to the second electrode 48 via. The effect of this example is similar to the example shown in FIGS. 7 and 8, but the pressure-sensitive rubber 47 can receive external pressure directly without using an electrode, which further increases the sensitivity of the pressure detector. be able to.

Although the present invention has been described above based on the illustrated embodiments, the present invention is not limited to these embodiments, and can be implemented by appropriately modifying each part of the configuration within the scope of the claims. be able to. For example, by deactivating the first relay 24 instead of the second relay 25 when an obstacle is detected by the pressure detector, the glass window 2 is stopped at that position when pressure is detected. It is possible to do so.

Furthermore, the same effect can be obtained even if the pressure detector 7 is installed only partially, instead of over the entire upper circumference of the glass window 2, and the cost can be further reduced. can. Further, as a method for fixing the pressure detecting body 7 to the glass window 2, in addition to adhesion, a so-called welding method in which the material is melted and bonded by heating or the like may be employed. Furthermore, the present invention is applicable not only to cases where the door portion does not have a window frame but also to cases where there is a window frame. Further, in addition to using a pressure sensitive body (pressure sensitive rubber) as the pressure sensing body, the same effect as the present invention can be obtained by using a pressure sensing body using an optical fiber.

〔Effect of the invention〕

As described in detail above, according to the present invention, in an automobile power window system, if an obstacle is caught while the glass window is closing, this is immediately detected by the pressure detector, and the glass window is closed. By stopping the window from rising, it is possible to prevent the obstacle from being compressed by the driving force of the motor. Furthermore, in the present invention, since the pressure detection body is provided at the peripheral edge of the glass window, the obstacle comes into contact with the pressure detection body before the obstacle is completely caught in the window, so safety can be ensured. This has an excellent effect.

[Brief explanation of drawings]

Fig. 1 is a partially transparent perspective view showing an embodiment of the present invention, Fig. 2 is an enlarged cross-sectional view showing the abutting portion in the first embodiment, and Fig. 3 is a view of the glass window of the pressure sensor. The installation is an enlarged perspective view showing the structure, FIG. 4 is an enlarged sectional view, FIG. 5 is an electrical wiring diagram showing the configuration of the controller applied to the embodiment, and FIG. 6 is an example of another configuration of the pressure sensor. 7 is a sectional view showing yet another configuration example of the pressure sensing body, FIG. 8 is a sectional view taken along a plane parallel to the glass window in the example of FIG. 7, and FIG. FIG. 10 is a cross-sectional view of a glass window cut in the longitudinal direction showing yet another configuration of the detection body, and FIG. 10 is a cross-sectional view showing still another configuration example of the pressure detection body. 1...door, 2...glass window, 4 (26)
...Motor, 6...Controller, 7...Pressure detector, 9...Weather strip, 21...Comparator, 22...AND! Child, 23...Amplifier switch, 24...IT relay, 25...Second relay, 31.38.42.47...Pressure sensitive rubber, 30.3
7,41°46...first electrode, 32,39,43.
48...Second electrode. Representative Patent Attorney Takashi Okabe

Claims (1)

[Claims] In a power window system for a vehicle that opens and closes a window by driving a motor, the system includes a pressure detection body installed at a circumferential edge on the closing side of the window, and a pressure detection body that responds to the pressure applied to the pressure detection body when the window is opened. and means for stopping opening of the window in response to an electrical signal generated by the vehicle.