JP3641671B2 - Cable-driven heater control device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cable-driven heater control device.
[0002]
[Prior art]
In general, a heater control device mounted on a vehicle has three operation links 2, 3, 4 for mode switching, temperature control, and inside / outside air switching, as shown in FIG. The control link 7 is slidably inserted into the outer cable 7a of the control cable 7 and the operation link 6 of the heater unit 5 serving as the operation medium corresponding to the operation link 2 for mode switching. The temperature control operation link 3 and the corresponding operation medium operation link (not shown) are slidably inserted into the outer cable 8a of the control cable 8 through the inner cable 7b. Connected by an inner cable 8b, the operation link 4 for switching the inside / outside air and the corresponding operation link (not shown) of the operated medium are controlled. The cable 9 is connected by an inner cable 9b slidably inserted into the outer cable 9a of the cable cable 9, and the control cables 7, 8, 9 are connected to the cable holding portions 10, 11, 12 formed in the heater control body 1. The outer cable 7a, 8a, 9a has a configuration in which the base ends are fixed.
[0003]
The mode switching operation link 2 includes a bevel gear portion 15 that meshes with a bevel gear 14 that rotates by turning the mode switching operation dial 13, and swings in conjunction with the operation of the operation dial 13. It comes to move.
[0004]
The temperature control operation link 3 includes a bevel gear portion 18 that meshes with a bevel gear 17 that is rotated by turning the temperature control operation dial 16, and is interlocked with the operation of the operation dial 16. To swing.
[0005]
Furthermore, the operation link 4 for switching the inside / outside air is swung by sliding an operation lever 19 extending integrally from the operation link 4 in the horizontal direction.
[0006]
In FIG. 3, reference numeral 20 denotes a duct through which hot air or cold air passes.
[0007]
[Problems to be solved by the invention]
In the conventional cable-driven heater control device as shown in FIG. 3, the operation links 2, 3, 4 and the cable holding portions 10, 11, 12 are provided at substantially the same height level on the same surface of the heater control body 1. Therefore, it is necessary to install the cable holding portions 10, 11, and 12 outside the swing range of the operation links 2, 3, and 4, and the installation positions of the cable holding portions 10, 11, and 12 are limited. As a result, in the case of the example of FIG. 3, the control cable 7 that needs to be arranged avoiding interference with the duct 20 is particularly bent, and the operating force at the time of mode switching becomes heavy. Had.
[0008]
In addition, grease for smooth operation is applied to the meshing portions of the bevel gears 14 and 17 and the bevel gear portions 15 and 18 of the operation links 2 and 3, but these portions are covered. Therefore, when the heater control body 1 is assembled to the instrument panel (not shown), the grease adheres to the hand of the worker, and the instrument panel or the like may become dirty.
[0009]
In view of such circumstances, the present invention can increase the degree of freedom of the control cable wiring, can loosen the bending of the control cable, can reduce the operating force of the operation link for heater control, and can be used as a heater control body. It is an object of the present invention to provide a cable-driven heater control device that can prevent contamination by grease when assembled.
[0010]
[Means for Solving the Problems]
According to the present invention, a plurality of operation links are swingably disposed in the heater control body, and each operation link and the corresponding operation link of the operated medium are slidable in the outer cable of the control cable. A cable-driven heater control device that is connected by an inserted inner cable and that fixes a base end portion of the outer cable of the control cable to a cable holding portion formed in the heater control body,
The heater control body is provided with a shielding plate for covering the operation link, and a cable holding portion of a control cable connected to a desired operation link is formed on the shielding plate, and the desired operation link is provided. The present invention relates to a cable-driven heater control device characterized in that its tip is bent so as to substantially coincide with the upper surface level of the shielding plate.
[0011]
According to the above means, the following operation can be obtained.
[0012]
The heater control body is provided with a shielding plate for covering the operation link, and a cable holding portion of a control cable connected to a desired operation link is formed on the shielding plate, and the desired operation link is provided. If the tip part is bent so that it substantially coincides with the upper surface level of the shielding plate, the cable holding portion of the desired operation link can be installed within the swing range of the adjacent operation link, and the cable holding The restriction of the installation position of the unit is relaxed, and the control cable connected at one end to the cable holding unit of the desired operation link is passed through the upper side of the other operation link to become the operation link of the operated medium. As a result, it is not necessary to reduce the bending of the control cable, which reduces the operating force in heater control. Want.
[0013]
In addition, since a shield plate covering the operation link is provided on the heater control body, even when grease is applied to the operation link covered by the shield plate, the worker control body can be attached when the heater control body is assembled to the instrument panel. Since the hand does not directly touch the grease application portion, it is difficult for the grease to adhere to the worker's hand, and the instrument panel and the like are prevented from becoming dirty.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0015]
1 and 2 show an example of an embodiment of the present invention. In the figure, the same reference numerals as those in FIG. 3 denote the same components, and the basic configuration is the conventional configuration shown in FIG. As shown in FIGS. 1 and 2, the heater control main body 1 is provided with a shielding plate 21 for covering the operation links 2 and 3, and the shielding plate is similar to the above. The cable holding part 10 of the control cable 7 connected to the operation link 2 for mode switching is formed on 21 and the operation link 2 for mode switching is at the top surface level of the shielding plate 21. It is in a point that is bent so as to substantially match.
[0016]
In the case of the illustrated example, the shielding plate support 1b is integrally formed on the front side of the base 1a of the heater control body 1, and the boss 1c is integrally formed at the required position on the back side of the base 1a. For attaching the shielding plate 21 to the base 1a, first, a pin 21a projecting from the shielding plate 21 is inserted into a hole 1d formed at a required position of the shielding plate support portion 1b, and the boss portion 1c is inserted. On the other hand, in a state where the tightening hole 21b of the shielding plate 21 is aligned, the screw 22 is screwed into the boss portion 1c from the tightening hole 21b of the shielding plate 21, and the shielding plate 21 is tightened to the base 1a.
[0017]
Next, the operation of the illustrated example will be described.
[0018]
As described above, the shielding plate 21 covering the operation links 2 and 3 is provided in the heater control main body 1, and the cable holding of the control cable 7 connected to the operation link 2 for mode switching is provided on the shielding plate 21. When the portion 10 is formed and the operation link 2 for mode switching is bent so that the tip end portion thereof substantially coincides with the upper surface level of the shielding plate 21, the cable holding portion 10 of the operation link 2 is adjacent to the operation link 2. The operation link 3 can be installed within the swinging range, the restriction of the installation position of the cable holding unit 10 is relaxed, and the control cable 7 having one end connected to the cable holding unit 10 is connected to the operation link. It is possible to connect to the operating link 6 of the heater unit 5 by passing the upper side of 3 and 4, and as a result, it is necessary to avoid the interference with the duct 20. It is not necessary to reduce the bending of a control cable 7, the operating force at the time of mode switching is lightened.
[0019]
Grease for smoothing the operation is applied to the meshing portions of the bevel gears 14 and 17 and the bevel gear portions 15 and 18 of the operation links 2 and 3. Since the shielding plate 21 covering the operation links 2 and 3 is provided, an operator's hand does not directly touch the grease application portion when the heater control body 1 is assembled to the instrument panel (not shown). As a result, it is difficult for grease to adhere to the hands of workers, and the instrument panel and the like can be prevented from becoming dirty.
[0020]
Thus, the degree of freedom of the control cable 7 can be increased, the bending of the control cable 7 can be loosened, the operation force of the heater control operation link 2 can be reduced, and the heater control body 1 can be assembled. It is possible to prevent soiling due to grease.
[0021]
Note that the cable-driven heater control device of the present invention is not limited to the above-described illustrated examples, and it is needless to say that various modifications can be made without departing from the gist of the present invention.
[0022]
【The invention's effect】
As described above, according to the cable-driven heater control device of the present invention, it is possible to increase the degree of freedom of the control cable routing, to loosen the bending of the control cable, and to operate the operation link of the heater control. In addition, it is possible to achieve an excellent effect that grease can be prevented from being contaminated when the heater control body is assembled.
[Brief description of the drawings]
FIG. 1 is a plan view of an example of an embodiment for carrying out the present invention.
FIG. 2 is a side sectional view of an example of an embodiment for carrying out the present invention, and is a cross-sectional view corresponding to the II-II section of FIG.
FIG. 3 is a plan view of a conventional example.
[Explanation of symbols]
1 Heater control body 2 Operation link 3 Operation link 4 Operation link 5 Heater unit (operated medium)
6 Operation link 7 Control cable 7a Outer cable 7b Inner cable 8 Control cable 8a Outer cable 8b Inner cable 9 Control cable 9a Outer cable 9b Inner cable 10 Cable holding part 11 Cable holding part 12 Cable holding part 21 Shielding plate

Claims (1)

In the heater control body, a plurality of operation links are swingably arranged, and each operation link and the corresponding operation link for the operated medium are slidably inserted into the outer cable of the control cable. A cable-driven heater control device comprising a cable holding portion formed in the heater control main body and a base end portion of the outer cable of the control cable fixed to the cable holding portion formed by connecting with a cable,
The heater control body is provided with a shielding plate for covering the operation link, and a cable holding portion of a control cable connected to a desired operation link is formed on the shielding plate, and the desired operation link is provided. The distal end of the cable is bent so that it substantially coincides with the upper surface level of the shielding plate, and the cable holding portion of the desired operation link can be installed within the swing range of the adjacent operation link, and the desired operation link A cable-driven heater control device characterized in that a control cable having one end connected to a cable holding portion of a link can be connected to an operating link of an operated medium by passing the upper side of another operating link .

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