JPH0520857Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention relates to an electric vehicle window opening/closing device such as an electric sunroof or an electric window regulator, and is particularly applicable to mechanical applications. This invention relates to an electric vehicle window opening/closing device that uses a voltage level setting means that sets a voltage level in accordance with an operational amount, and sets the window open state according to the voltage level set by the voltage level setting means. .

(Prior Art) Conventionally, this type of electric vehicle window opening/closing device is known, for example, as described in Japanese Utility Model Application No. 59-196671.

As shown in FIG. 8, this device consists of a motor M that drives a window opening/closing mechanism, a control device P that controls the motor M, and a slide volume 11. Then, the control device P drives the motor M according to the voltage level set by the slide volume 11, and sets the window open state corresponding to the voltage level, as shown in FIG. . Note that the control device P that controls the motor M according to the set voltage level at the slide volume 11 is described in the above publication, so
The explanation will be omitted.

As shown in FIG. 7, an operation switch 10 having a slide volume 11 is attached to a door (not shown) in the vehicle interior, and its operation knob 12
The opening/closing position of the window is set according to the mechanical operation position of the window. Therefore, there is an advantage that desired window opening/closing operations can be performed without malfunction.

(Problems to be Solved by the Invention) However, in the conventional device, the resistance change amount of the slide volume 11 is set to change linearly with the mechanical operation amount of the operation knob 12.
Moreover, the total mechanical stroke of the operating knob 12 is made as small as possible to ensure prompt setting of the window between fully closed and fully opened.

For this reason, it is extremely difficult to finely adjust the window opening position, and in particular, when smoking, fine adjustment of the window opening degree near the fully closed position becomes extremely complicated, and there is a problem in that it is difficult to set the desired opening degree.

Therefore, an object of the present invention is to make the relationship between the mechanical operation amount and the amount of change in the voltage level non-linear in the voltage level setting means, thereby facilitating fine adjustment of the opening degree when the window is fully closed. .

[Structure of the idea]

(Means for Solving the Problem) In order to solve this problem, in the present invention, in the conventional device described above, the amount of change in the voltage level of the voltage level setting means with respect to the mechanical operation amount near the fully closed window is set to be small. .

(Function) As a result, even if the amount of mechanical operation is large near the fully closed window, the voltage level does not change much, and therefore the amount of opening of the window changes only slightly. In other words, it is possible to finely adjust the opening degree when the window is fully closed.

(Embodiments) Preferred embodiments of the present invention will be described below with reference to the drawings. Note that the main configuration of the electric vehicle window opening/closing device is the same as the conventional device described above, so a description thereof will be omitted.

Slide volume 1 as voltage level setting means
1, as shown in FIGS. 1 to 3, has a hollow case 16 made of resin, and a slider 12a is slidably disposed inside the case 16. The slider 12a is made of resin and is formed integrally with the operation knob 12. The operation knob 12 extends upward through an opening 13 formed in the case 16 and can be slid.

At the bottom of the case 16, a long common electrode piece 18 and a resistor 15 are provided side by side with a predetermined gap therebetween. On the other hand, a brush 14 having a pair of contact pieces is attached to the slider 12a.
Each contact piece electrically and slidably contacts the common electrode piece 18 and the resistor 15, respectively.

Further, terminals 17a and 17b are attached to both ends of the electrode piece 18 and the resistor 15, respectively, and extend below the case. In FIG. 1, only the electrode piece 18 and the terminals 17a and 17b provided at one end of the resistor 15 are shown, and the terminal at the other end is omitted. Each terminal 17a at both ends of the resistor 15 is connected to a reference voltage and ground, respectively. Further, one terminal 17b of the common electrode piece 18 is connected to a control device (see FIG. 8).

A notch mechanism 20 is provided between the case 16 and the slider 12a, which gives a sense of moderation to the operation of the operating knob 12 and allows the operating knob 12 to be held. The notch mechanism 20 is connected to the case 1.
A plurality of recesses 16a are formed at appropriate intervals in the longitudinal direction of the side wall of the slider 12a, and a ball 22 is fitted into a hole 12b formed in the side of the slider 12a, and the ball 22 is urged toward the recess 16a. It consists of a spring 21. Note that the recess 16a has a conical shape so that the ball 22 can be smoothly engaged and disengaged.

Next, the resistor 15 will be explained in detail.

As shown in FIG. 3, the resistor 15 includes a low resistivity portion 15b disposed over the entire length of the resistor 15, and a high resistivity portion 15b disposed on the left half of the low resistivity portion 15b. It consists of a resistivity portion 15a. In other words, since the resistance of the left half is the parallel value of the high resistivity portion 15a and the low resistivity portion 15b, the resistivity is set to be lower than that of the right half of the low resistivity portion 15b alone. And brush 14
is in contact with the upper surface of the resistor 15.

Therefore, in the resistor 15, the relationship between the stroke (operation amount) of the operation knob 12 and the proportion (resistivity) of the total resistance is as shown in FIG.
In other words, as shown by the polygonal line A, the rate of increase in resistivity with respect to the stroke amount changes at the position where the stalk is half (20 mm) of the total stroke. Even at this position where the stroke amount is half, the resistivity is set to be 12.5%. Therefore, near the fully closed position, the resistivity does not increase much with respect to the stroke amount.

In addition, as shown in FIG. 4, the resistor 1
15 may be formed. As a result, the resistor 11
5 can also be made such that the resistivity increases with stroke in an exponential relationship, as shown by curve C in FIG. In this case as well, the resistivity does not increase significantly with respect to the stroke amount near the fully closed window.

In addition, in the resistor 115, the middle and resistivity portion 15
b, the end of 115a is formed obliquely,
The change in resistivity of the resistor 115 is made smooth without bending.

As shown in Figure 5, when the resistivity is set to 100% at all stroke positions, the relationship between stroke and resistivity is linear (straight line C) as in the past. In comparison, resistor 15,1
15, the resistivity does not increase much near the fully closed window.

Since such a slide volume 11 is used in this embodiment, when the window is fully closed, the operation knob 1
Even if the common electrode piece 18 is slid (stroked), the resistivity does not change much, and the set voltage level output from the common electrode piece 18 does not become very large. Therefore, the window only moves slightly, making it easy to finely adjust the opening degree.

Furthermore, since the resistivity is 100% at all stroke positions as in the conventional case, the operation between fully closed and fully open can still be performed quickly as before.

[Effect of idea]

As described above, in the present invention, the voltage level setting means sets a small amount of change in the voltage level with respect to the mechanical operation amount near the fully closed window. As a result, when the window is fully closed, the voltage level does not change much even if the amount of mechanical operation is large;
The amount of window opening changes only slightly. In other words, it is possible to finely adjust the opening degree when the window is fully closed.

Furthermore, the present invention has the excellent effect of improving the operability of a conventional electric vehicle window opening/closing device with an extremely simple configuration in which the characteristics of the voltage level setting means are changed.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the external appearance of a slide volume used in an electric vehicle window opening/closing device according to the present invention, Fig. 2 is a cross-sectional view taken along the - line in Fig. 1, Figs. Figure 4 is a perspective view showing different aspects of the resistor, Figure 5 is a graph showing the relationship between stroke and resistivity in the resistor, Figure 6 is an explanatory diagram showing an automobile window, and Figure 7 is a window opening/closing device. An external perspective view showing the operation switch 10 of the eighth
The figure is a system diagram of a conventional electric vehicle window opening/closing device. M...Motor, P...Control device, 11...Slide volume.

Claims (1)

[Claims for Utility Model Registration] Consisting of a motor that drives a window opening/closing mechanism, a control device that controls the motor, and a voltage level setting means that sets a voltage level according to the amount of mechanical operation, the voltage In an electric vehicle window opening/closing device, the control device drives the motor according to a voltage level set by the level setting means and sets a window open state corresponding to the voltage level, wherein the voltage level setting means , an electric vehicle window opening/closing device in which the amount of change in voltage level relative to the amount of mechanical operation near the window fully closed is set to be small, making it possible to finely adjust the opening degree near the fully closed window.