JPH06821U - Door opening and closing device for vehicle air conditioners - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a door opening / closing device for an air conditioner for an automobile, in which a pin does not break due to an opening / closing force when a cable is operated. A door opening / closing device in which a door opening / closing lever 9 is provided in a unit case, a ring 29 at the tip of a cable 27 is hooked on a locking pin 21 of the lever 9, and the door is opened / closed by operating the cable 27. A ring pressing member 23 is provided around the locking pin 21 of the lever 9, and the cable 27
During operation, the ring 29 is held at two points, the ring pressing member 23 and the locking pin 21.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of a door opening / closing lever of a vehicle air conditioner.

[0002]

[Prior art]

 Generally, a vehicle air conditioner is provided with modes such as a DEF mode, a FOOT mode, and a VENT mode, and this type of air conditioner is provided with a mode switching door or the like for switching each mode. This door is usually attached to a shaft, and a lever for opening and closing the door is attached to this shaft. As shown in FIG. 8, this lever is provided with a pin 51, and a ring 54 at the tip of a cable 53 is fitted into this pin 51 as shown in FIG. Then, by operating the cable 53, the lever 55 swings, and the door is opened and closed via a shaft (not shown) connected to the lever 55.

[0003]

[Problems to be solved by the device]

 However, the conventional configuration has a problem that the opening / closing force transmitted through the ring 54 is directly applied to the pin 51 when the cable 53 is operated.

Conventionally, in order to reduce the size, the pin 51 of the lever 55 has a small diameter and is made of resin. In such a case, when the opening / closing force is directly applied, the pin 51 is There is a risk that 51 may break.

Therefore, an object of the present invention is to solve the problems of the above-described conventional technology, and to provide a door opening / closing device for an automobile air conditioner in which a pin does not break due to an opening / closing force during cable operation. To provide.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a door opening / closing device in which a door opening / closing lever is provided in a unit case, and a locking pin of the lever is hooked with a ring at a cable end to open / close the door by a cable operation. A ring pressing member is provided around the locking pin of the lever, and the ring is held at two points when the cable is operated, the ring pressing member and the locking pin.

[0007]

[Action]

 According to the present invention, since the ring is supported by the pin and the ring pressing member at the time of operating the cable, the opening / closing force at the time of operating the cable is distributed to two places, and the force applied to the pin is the conventional one. It is reduced to almost half compared with. Therefore, even if, for example, the pin is thinly made of resin, breakage of the pin is unlikely to occur.

[0008]

【Example】

 An embodiment of a door opening / closing device for a vehicle air conditioner according to the present invention will be described below with reference to FIGS.

In FIG. 4, reference numeral 1 denotes a plastic unit case. A flange 3 is provided at the opening of the unit case 1, and a door 5 is provided inside the flange 3 so as to be able to block the ventilation passage of the case 1. The door 5 is attached to a door shaft 7 that penetrates the case 1, and a lever 9 is fixed to an end portion 7 a of the door shaft 7. An operation cable 27 is connected to the lever 9, and the operation cable 27 is connected to a controller (not shown).

The illustrated door 5 is a door that is opened in the VENT mode, and the selection of the VENT mode is performed by the controller. That is, when the controller is operated, the door 5 is also opened / closed via the cable 27 and the lever 9. The case 1 is also equipped with a FOOT mode and a door opened in the DEF mode.

By the way, the present embodiment is characterized by the structure for connecting the tip of the lever 9 and the tip of the operation cable 27.

In FIG. 1, a locking pin 21 is provided at the tip of the door opening / closing lever 9, and a ring-shaped ring pressing member 23 is provided around the locking pin 21. A part 25 of the ring pressing member 23 is cut out, and an operation cable 27 is passed through the cutout portion 25 as shown in FIG.

A ring 29 for connection is fixed to the tip of the cable 27, and the ring 29 is fitted between the locking pin 21 and the ring pressing member 23. The ring 29 may be formed by winding the tip of the cable 27 into a coil spring shape.

According to this, as shown in FIG. 2, when the cable 27 is pulled in the direction of the arrow X, the inner circumference of the ring 29 and the outer circumference of the locking pin 1 come into contact with each other at a point P ₁ , and The outer periphery of the ring 29 and the inner periphery of the ring pressing member 23 come into contact with each other at a point P ₂ , and as shown in FIG. 3, when the cable 27 is pushed and moved in the direction of the arrow Y, the inner periphery of the ring 29 is engaged. The outer circumference of the stop pin 1 contacts at the point P ₃ , and the outer circumference of the ring 29 contacts the inner circumference of the ring pressing member 23 at the point P ₄ .

Next, the operation of the embodiment will be described with reference to FIG.

By fitting the ring 29 connected to the cable 27 between the locking pin 21 and the ring pressing member 23 and operating the cable 27, the lever 9 swings and is connected to the lever 9. The door 5 is opened and closed via the shaft 7.

When the cable is operated, the opening / closing force transmitted through the ring 29 is not directly applied to the pin 21, and two points (for example, P ₁ , P ₂ , or It is held in P _3, P _4). Therefore, if the opening / closing force is directly applied to only the pin 21, the pin 21 may be broken, but since the opening / closing force is held at two points, it is extremely difficult to break.

This means that even if the locking pin 21 becomes thin due to downsizing, since the opening / closing force is held at two points, the opening / closing force applied to the pin 21 is halved, which makes it difficult to break and the performance is improved. It shows that a good device can be provided.

Therefore, according to this embodiment, even if the operation cable 27 is operated in either of the directions X and Y, the ring 29 is always supported at two points of P ₁ or P ₂ , P ₃ or P ₄ . Therefore, the opening / closing force of the operation cable 27 acting on the locking pin 21 is halved. Therefore, even if the thickness of the locking pin 21 is thin, or if it is made of resin, it can withstand strength. Can be Further, since the ring 29 is supported at two points, so-called looseness between the engaging portions is reduced, and the force for holding the ring 29 is increased, so that the ring 29 is less likely to come off.

When the operation cable 27 is operated in the X and Y directions, the lever 9 swings, so that the cable 27 swings around the locking pin 21 with a predetermined swing width. Then, the notch 25 is provided in the ring pressing member 23 by an amount corresponding to the swing width.

However, the cutout portion 25 may be formed by cutting out a part of the height of the ring pressing member 23, as shown in FIG. Further, based on the same idea, as shown in FIG. 6, the ring pressing members 31, 33 may be provided at a predetermined interval, and the ring pressing member 35 may be provided so as to face the ring pressing members 31, 33. . According to this, when the operation cable 27 is operated, the ring 29 comes into contact with any one of the ring pressing members 31, 33, and 35, so that the opening / closing force can be dispersed as in the above-described embodiment. it can.

FIG. 7 shows another embodiment.

According to this, the lever 40 is provided with the locking pin 41, and the slit 43 is provided at the tip thereof. When the ring 45 of the operation cable 44 is fitted therein, if the ring 45 is pushed from above, the diameter of the tip of the locking pin 41 is reduced by the amount of the slit 43, and after the ring 45 is fitted, The tip of the stop pin 41 is restored to its original thickness.

According to this, the ring 45 is prevented from coming off by the outer peripheral portion 41a of the pin 41, so that the connection will not be disconnected.

[0025]

[Effect of device]

 In the present invention, when the cable is operated, the ring is held at two points, the ring pressing member and the locking pin, so that the opening / closing force transmitted through the ring is distributed directly to the two places, not directly on the pin. Therefore, the force applied to the pin is reduced to about half that of the conventional one, and there is an effect that pin breakage is less likely to occur.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a door opening / closing device for a vehicle air conditioner according to the present invention.

FIG. 2 is likewise a vertical sectional view.

FIG. 3 is likewise a vertical sectional view.

FIG. 4 is a perspective view showing a unit case.

FIG. 5 is a perspective view of a lever tip according to another embodiment.

FIG. 6 is a plan view of the tip of a lever showing another embodiment.

FIG. 7 is a plan view of the tip of a lever showing another embodiment.

FIG. 8 is a perspective view showing a conventional lever tip.

FIG. 9 is likewise a vertical sectional view.

[Explanation of symbols]

1 unit case 9 door opening / closing lever 21 locking pin 23 ring pressing member 25 notch 27 operation cable 29 ring P ₁ , P ₂ , P ₃ , P ₄ contact point

Claims (1)

[Scope of utility model registration request] 1. A door opening and closing device for opening and closing a door by operating a cable by providing a door opening and closing lever on a unit case, and hooking a ring at the tip of the cable on the locking pin of the lever, and surrounding the locking pin of the lever. 2. A door opening / closing device for a vehicle air conditioner, characterized in that a ring pressing member is provided in the ring, and the ring is held at two points of the ring pressing member and the locking pin when a cable is operated.