JPH0537572U - Waterproof structure of motor for retractable light - Google Patents

Abstract

(57) [Summary] [Purpose] In addition to the intrusion of water droplets from the road surface, it is possible to prevent the intrusion of mist-like water droplets due to steam car washing in the engine room, etc., to further prevent water droplet intrusion, and good workability. A waterproof structure for a retractable motor is provided. [Structure] Operation knob 32 attached to rotating shaft 30
Is a retractable light motor 20 mounted and fixed to a vehicle body facing a road surface. The skirt is mounted on a motor housing 21 of the motor 20 and prevents water droplets from flowing from the peripheral surface of the motor 20 to the operation knob 32. 52, and a collar portion 40 formed around the operation knob 32 so as to cover the breathing hole 36 of the motor 20 in a spaced manner,
The collar portion 40 is provided on the inner peripheral side of the skirt 52.
A cover portion 62 which cooperates with the bent portion to form a bent gap 60.
And

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improved waterproof structure for a retractable light motor.

[0002]

[Prior Art]

 In recent years, retractable headlights are widely used in vehicles due to styling and aerodynamic shaping of the body.By operating buttons on the driver's seat, the motor for the lights is driven and the lights are turned on. It is controlled by switching to an open state where it can be used or a closed state where the light is stored inside the body.

Since the headlight is one of the important safety parts of the vehicle, even if the motor fails, it is necessary to operate the light or the cover to the open state without tools. For this reason, the light motor is provided with an operation knob as a manual operation unit at the end opposite to the output side of the rotary shaft. Even if the motor fails for some reason, a person can rotate the rotary shaft using the operation knob to open the retractable headlight.

By the way, in recent vehicles, the space in the engine room tends to be small due to styling and aerodynamic shaping of the body. Therefore, in the retractable light motor, the operation knob of the motor is placed on the road surface. As such, it is often attached to the bottom of the vehicle body so that the operation knob can be manually operated from the lower side of the vehicle body.

FIG. 7 shows an example of such a retractable headlight mechanism. In FIG. 7, a headlight 14 is attached to a body 10 via a mounting shaft 12 so as to be openable and closable. By transmitting the rotation output of the motor 20 to one end side of the link mechanism 24 via the speed reducer 22, the headlight 14 attached to the other end side of the link mechanism 24 is formed to be opened and closed. ..

FIG. 8 shows a series of opening / closing operations of the retractable headlight 14 controlled by using the link mechanism 24.

As described above, in such a retractable headlight mechanism, a failure occurs in the motor 20 when the headlight 14 is unusable, for example, in the state shown in FIGS. Also, it is required that the headlight 14 can be opened to a usable state by a manual operation as shown in FIG.

FIG. 9 shows an example of a conventional retractable light motor 20 formed for such a purpose. The motor 20 has an operation knob 32 for manual operation on one end side of a rotary shaft 30. Is attached and fixed.

The motor 20 is located below the inside of the body 10 between the tire housing 26 and the radiator cooling air duct 28, and its operation knob 32 is attached and fixed so as to face the road surface (see FIG. 7). As a result, even if the motor 20 breaks down for some reason, the driver or operator puts his / her hand under the body 10 and manually operates the operation knob 32, so that the headlight 14 is in any position. Can also be brought into the usable open state shown in FIG. 8 (C).

However, when the motor 20 is attached to such a position, water droplets splashed up from the road surface or water droplets that enter from the air duct 28 adhere to the motor 20 and are attached integrally with the rotary shaft 30. Water droplets may flow into 32 and freeze up, or may enter into the inside through the breathing hole 36 of the motor 20, which may be a major cause of motor failure.

Therefore, in the conventional motor 20, as shown in FIG. 9, the waterproof cap 38 is detachably fitted and fixed from the operation knob side to solve the above problem.

However, this conventional waterproof technology has the following problems.

First, when the operation knob 32 is manually operated, the waterproof cap 38 must be removed from the motor 20 each time, and the waterproof cap 38 must be attached again after the manual operation is completed, resulting in poor workability.

Particularly, since the worker attaches and detaches the waterproof cap 38 from the bottom side of the body 10 by what is called “blind work”, it is extremely difficult to reattach the waterproof cap 38 once removed to the motor 20. It is troublesome and the installation is likely to be incomplete.

If the waterproof cap 38 is not attached properly, the waterproof function of the motor 20 is deteriorated and the motor failure becomes fatal.

Next, it is easy to forget to attach the waterproof cap 38 to the motor 20 after the manual operation of the operation knob 32 is completed. In particular, if the driver forgets to put on the waterproof cap 38 at the time of inspecting a vehicle at a maintenance shop or the like, the driver will not notice this and will drive around the vehicle.

Furthermore, if some kind of external force is applied to the waterproof cap 38, the waterproof cap 38 will fall out.

Further, such a waterproof cap 38 is generally made of resin or rubber and tends to change over time. Therefore, if the waterproof cap 38 is left attached to the motor 20 for a long period of time, the waterproof cap 38 will stick to the motor 20 and it will be difficult to remove it easily. Therefore, the motor 20 is dropped from the motor 20 very easily.

Therefore, the present applicant previously proposed a waterproof structure for a retractable light motor as disclosed in Japanese Utility Model Laid-Open No. 2-110958 in order to solve such a conventional problem.

As shown in FIG. 10, the waterproof structure of the retractable light motor has a skirt 52 attached to the housing 21 of the motor 20 to prevent water droplets from flowing into the rotary shaft 34 from the peripheral surface of the motor 20. At the same time, a brim portion 40 is formed around the operation knob 32 so as to cover the breathing hole of the motor 20 in a spaced-apart manner, and the water drop splashed up from the road surface by the collar portion 40 enters the breathing hole 36. By preventing this, the workability and waterproofness are made excellent.

[0021]

[Problems to be solved by the device]

 The waterproof structure of the retractable light motor according to the above proposal effectively prevents water droplets splashed from the road surface from entering the breathing hole 36, but there is a possibility that it may enter the breathing hole 36. As the water droplets, in addition to the water droplets from the road surface, mist water droplets due to steam car washing in the engine room or the like are considered, and the mist water droplets enter the breathing hole 36 by the steam car washing in the engine room or the like. It is also necessary to prevent this, and it is desirable to further prevent water droplets from entering.

Therefore, in the present invention, in addition to the intrusion of water droplets from the road surface, it is possible to prevent the intrusion of mist-like water droplets due to the steam car wash in the engine room, etc. The purpose is to provide a good waterproof structure for a retractable motor.

[0023]

[Means for Solving the Problems]

 In order to achieve the above object, the invention of claim 1 is a retractable light motor in which a manual operation part attached to a rotary shaft is fixed to a vehicle body facing a road surface, and the motor is provided in a housing of the motor. A skirt member that is attached to prevent water from flowing from the motor peripheral surface to the manual operation part, a brim portion formed around the manual operation part so as to cover the breathing hole of the motor in a spaced manner, and the skirt. A cover portion which is provided on the inner peripheral side of the member and which forms a bent gap in cooperation with the collar portion.

Further, the invention of claim 2 is a retractable light motor in which the manual operation part attached to the rotary shaft is attached to the vehicle body facing the road surface, and is attached to the housing of the motor. A skirt member that prevents the flow of water droplets from the motor peripheral surface to the manual operation part, and a breathing hole of the motor are separated from each other, and a bent gap is formed corresponding to the inner peripheral shape of the skirt member. As described above, a collar portion formed around the manual operation portion is provided.

[0025]

[Action]

 Next, the operation of the present invention will be described.

First, a brim portion is formed around the manual operation portion so as to cover the breathing hole of the motor to prevent water droplets splashed from the road surface from entering the breathing hole. Furthermore, a skirt is provided around the motor housing to surround the manual operation part to prevent water droplets from flowing from the motor peripheral surface to the rotating shaft.

As a result, even if the motor is mounted and fixed so that the manual operation unit faces the road surface with the exposed portion, the water droplets flowing from the motor peripheral surface to the rotating shaft and the water droplets splashed from the road surface are prevented. It is possible to prevent invasion into the breathing hole.

Therefore, it is possible to directly manually operate the manual operation unit without the need to attach and detach the waterproof cap as in the conventional device, and the operability is greatly improved.

Further, the skirt is fitted and fixed to the motor from the manual operation part side, the front end part is opened, and a cylindrical body that covers the rotation shaft side end part of the motor and the periphery of the manual operation part is formed. is doing. A breathing hole for the motor is formed in the motor housing, and a brim portion is formed around the manual operation portion so as to cover the breathing hole in a spaced manner.

This not only prevents the flow of water droplets from the peripheral surface of the motor to the rotary shaft, but also prevents water droplets from directly flowing between the collar portion provided on the manual operation portion and the motor body. Intrusion (for example, intrusion of water droplets from the radiator cooling air duct) can be prevented, and the waterproof effect can be further enhanced.

Further, a cover portion which cooperates with the collar portion to form a bent gap is provided on the inner peripheral side of the skirt member (claim 1), or the bent gap is formed corresponding to the inner peripheral shape of the skirt member. The collar portion is formed so as to be formed (claim 2).

As a result, mist-like water droplets caused by steam car washing in the engine room or the like are blocked by the bent gaps and prevented from entering the breathing hole, and as a result, more reliable prevention can be achieved.

[0033]

【Example】

 Next, a preferred embodiment of the present invention will be described with reference to the drawings. The members corresponding to those in the above-mentioned prior art are designated by the same reference numerals and the description thereof will be omitted.

FIG. 1 shows a preferred embodiment of a waterproof structure for a retractable light motor according to the present invention.

In the motor 20 of the embodiment, the operation knob 32 as a manual operation portion is attached and fixed to one end side of the rotary shaft 30 by using a screw 44, as in the conventional example.

Around the operation knob 32, a brim portion 40 formed so as to cover the breathing hole 36 of the motor 20 in a spaced manner is provided to prevent water droplets splashed from the road surface from entering the breathing hole 36. I am trying to do it.

The operation knob 32 of the embodiment is formed in a cylindrical shape in which an opening is formed on the motor side of the operation knob 32 attached to the rotary shaft 30, and the flange portion 40 described above has a ring shape from the opening end. Is installed near.

Although the size of the collar portion 40 varies depending on the size of the operation knob 32, the position of the breathing hole 36 of the motor 20, and the like, if it is formed to a size that the breathing hole 36 is hidden from the outside. It is enough.

When the operation knob 32 is attached to the rotary shaft 34, water flowing down from the peripheral surface of the motor accumulates in the inside 46 of the operation knob 32, and the accumulated water freezes to operate the rotor 34 in a cold region. It can be disabled.

Therefore, the operation knob 32 of the embodiment is provided with a plurality of drain holes 42 on the bottom surface thereof so as to drop and remove the water accumulated in the inside 46.

Note that, in this case, it is conceivable that water drops splashed up from the road surface may conversely enter the inside of the operation knob 32 from the water drain hole 42. For this reason, the water drain hole 42 of the embodiment is provided with a water return wall 42a at the upper part thereof, and is formed so as to communicate with the inside 46 of the operation knob 32 through the openings 42b on both sides of the water return wall 42a. ing .

Further, the housing 21 of the motor 20 is provided with a skirt 52 for preventing water droplets from flowing into the rotary shaft 30 from the peripheral surface of the motor 20.

The skirt 52 may be provided integrally with the motor housing 21 or may be provided separately.

In this embodiment, the skirt 52 is fitted and fixed to the motor 20 from the side of the operation knob, and is formed separately from the motor 20.

The skirt 52 is made of a material such as resin or rubber, and is formed so as to be securely fitted and fixed to the end portion of the motor 20 with a certain elastic force. The tip of the skirt 52 is opened, and is formed in a tubular shape that covers the rotating shaft 30 of the motor 20 and the operation knob 32.

As a result, not only the water droplets flowing from the peripheral surface of the motor 20 but also the water droplets blown from around the motor 20 are surely prevented from entering through the gap between the operation knob 32 and the motor 20. The waterproof function can be further enhanced.

Further, a cover portion 62 is formed on the inner peripheral surface of the skirt 52 in cooperation with the collar portion 40 to form a curved gap 60.

The cover portion 62 is formed integrally with the skirt 52 so as to project in a ring shape from a substantially central position in the vertical direction of the inner wall surface of the hanging portion 64 to a position below the brim portion 40.

Further, the tip of the cover portion 62 is set so as to overlap with the tip of the collar portion 40 in the up and down direction in a separated state, and is connected to the inside of the motor 20 and the outside air through the breathing hole 36 and the gap 60. Can communicate with each other.

As described above, due to the presence of the cover portion 62, even when steam car washing is performed in the engine room or the like, mist-like water droplets are blocked by the cover portion 62 from the breathing hole 36 into the motor 20. It will not invade and will be more reliably waterproofed. Even in this state, sufficient breathing in the motor 20 is ensured through the gap 60.

Further, in the present embodiment, the waterproof effect can be obtained only by changing the shape of the skirt 52, so that it is possible to achieve the intended purpose without increasing the number of parts and the number of work steps. Become.

The present embodiment has the above configuration, and its operation will be described below.

The motor 20 of this embodiment is attached and fixed to the vehicle so that the operation knob 32 faces the road surface, for example, as shown in FIG.

In the motor 20, the skirt 52 has an opening formed at the tip thereof so that the operating knob 32 is always exposed to the road surface side.

Therefore, when manually operating the operation knob 32, it is not necessary to perform work such as attaching and detaching the waterproof cap as in the conventional case, and a hand is directly inserted from the lower side of the vehicle to directly operate the operation knob 32. It is possible to improve the workability.

At this time, since the skirt 52 of the embodiment is formed by using a material having a high flexibility such as rubber or resin, the skirts 52 are not moved when the operation knob 32 is manually operated. The skirt 52 does not interfere with the manual operation of the operation knob 32 because the skirt 52 flexibly deforms according to the position of the hand.

Even if the operation knob 32 is exposed as described above, since the breathing hole 36 of the motor 20 is sufficiently covered from the outside by using the collar portion 40, water droplets enter the breathing hole 36. Can be reliably prevented.

Further, the skirt 52 can reliably prevent the flow of water droplets from the peripheral surface of the motor 20 toward the rotating shaft 30 and the intrusion of water droplets from the gap between the collar portion 40 and the motor 20. it can.

As a result, even when the operation knob 32 is exposed, it is possible to sufficiently keep the breathing hole 36 and the rotating shaft 30 waterproof. Further, even if a water droplet enters the operation knob 32 through the gap between the motor and the collar portion 40, the invading water droplet is dropped and removed downward through the water drain hole 42 provided on the bottom surface of the operation knob 32. The water accumulated in the inner portion 46 of the operation knob 32 does not freeze and hinder the operation of the motor 20.

Further, when steam car washing is performed in the engine room or the like, mist-like water droplets are generated and try to get into the breathing hole 36 of the motor 20, but the presence of the cover portion 62 formed integrally with the skirt 52 exists. By this, the invasion into the breathing hole 36 is prevented, and more reliable prevention is achieved.

The presence of the cover portion 62 also secures the suction inside the motor 20 through the gap 60.

FIG. 2 shows another embodiment of the present invention.

In this embodiment, the lower end of the inner tubular portion 66, which is the attachment portion of the skirt 52 to the motor 20, is hung down to a position below the collar portion 40, and the lower end of the inner tubular portion 66 is flanged inside. Since the cover portion 68 is integrally bent by bending the cover portion 68, the tip end of the cover portion 68 and the tip end of the collar portion 40 are overlapped in the vertical direction in the separated state, and the gap 60 is formed therebetween. ..

Other configurations and operations are the same as those in the above-mentioned embodiment, and the description thereof will be omitted.

FIG. 3 shows still another embodiment of the present invention.

In this embodiment, the cover 70 formed separately from the skirt 52 is attached to the inner wall surface of the skirt 52, and the tip end of the cover 70 and the tip end of the collar portion 40 are separated from each other in the vertical direction. And a gap 60 is formed between them.

The attachment portion 72 of the cover 70 to the skirt 52 is formed in a tubular shape and is fixed to the inner wall surface of the skirt 52 by press fitting or an adhesive agent.

As described above, by forming the cover 70 separately from the skirt 52, it is possible to form the cover 70 without changing the structures of the skirt 52 and the operation knob 32.

Other configurations and operations are the same as those in the above-mentioned respective embodiments, and the description thereof will be omitted.

FIG. 4 shows still another embodiment of the present invention.

In this embodiment, as in the embodiment shown in FIG. 3, a cover 74 is formed separately from the skirt 52, and a tubular mounting portion 76 formed integrally with the cover 74 is provided inside the skirt 52. The outer peripheral surface of the portion 66 is fixed by press fitting or adhesion. Then, the tip end of the cover 74 and the tip end of the collar portion 40 are overlapped with each other in the vertical direction in the separated state, and the gap 60 is formed therebetween.

As described above, by forming the cover 74 separately, the cover 74 can be formed without changing the structures of the skirt 52 and the operation knob 32. Also, the diameter of the cover 74 can be reduced by attaching it to the outer peripheral surface of the inner tubular portion 66 of the skirt 52, and the inner tubular portion 66 of the skirt 52 can be formed by the attachment portion 76 of the cover 74 and the housing of the motor 20. The skirt 52 can be clamped, and the skirt 52 can be securely attached.

Other configurations and operations are the same as those in the above-mentioned respective embodiments, and the explanation thereof will be omitted.

FIG. 5 shows still another embodiment of the present invention.

In this embodiment, the cover portion 78 is integrally formed with the collar portion 40 to form the bending gap 80 corresponding to the inner peripheral shape of the skirt 52.

The cover portion 78 is formed by bending the outer peripheral end of the collar portion 40 upward and further bending the upper end portion outward.

As described above, by integrally forming the cover portion 78 on the collar portion 40, the cover portion 78 can be easily formed only by changing the shape of the collar portion 40.

Other configurations and operations are the same as those of the embodiment shown in FIGS. 1 and 2, and the description thereof will be omitted.

FIG. 6 shows still another embodiment of the present invention.

In this embodiment, as in FIG. 5, the cover portion 82 is integrally formed with the collar portion 40 to form the bending gap 80 corresponding to the inner peripheral shape of the skirt 52.

The cover portion 82 is formed by extending the outer peripheral end of the collar portion 40 to the vicinity of the inner wall surface of the skirt 52 and extending upward from the middle position thereof.

As described above, by integrally forming the cover portion 82 on the collar portion 40, the cover portion 82 can be easily formed only by changing the shape of the collar portion 40.

Other configurations and operations are similar to those of the embodiment shown in FIGS. 1, 2 and 5, and the description thereof will be omitted.

Although the retractable light motor described in each of the above embodiments stores the light itself, the invention is not limited to this, and includes a motor that fixes the light and opens and closes only the light cover. ..

It is needless to say that the present invention is not limited to the above-mentioned embodiment, and various modifications can be made within the scope of the present invention.

[0086]

[Effect of the device]

 As described above, according to the present invention, in the retractable light motor mounted on the vehicle with the manual operation part facing the road surface, sufficient waterproof performance is provided without providing a waterproof cap that completely covers the manual operation part. Therefore, it is not necessary to remove the waterproof cap each time the manual operation section is manually operated, and the workability is greatly improved.

Further, since it is not necessary to attach / detach the waterproof cap during manual operation of the manual operation part, there is a problem that the waterproofness is deteriorated due to forgetting or removing the waterproof cap, imperfect attachment of the waterproof cap, etc. Therefore, the motor itself can always be sufficiently protected.

Further, a cover portion which cooperates with the collar portion to form a bent gap is provided on the inner peripheral side of the skirt member, or the bent gap is formed corresponding to the inner peripheral shape of the skirt member. Since the rib is formed, mist-like water drops caused by steam car washing in the engine room, etc. are blocked by the bent gaps to prevent entry into the breathing holes, and as a result, more reliable prevention can be achieved. it can.

[Brief description of drawings]

FIG. 1 is an explanatory view of a waterproof structure of a retractable light motor according to an embodiment of the present invention.

FIG. 2 is an explanatory view of a waterproof structure for a retractable light motor according to another embodiment of the present invention.

FIG. 3 is an explanatory view of a waterproof structure of a retractable light motor according to still another embodiment of the present invention.

FIG. 4 is an explanatory view of a waterproof structure for a retractable light motor according to still another embodiment of the present invention.

FIG. 5 is an explanatory view of a waterproof structure of a retractable light motor according to still another embodiment of the present invention.

FIG. 6 is an explanatory view of a waterproof structure for a retractable light motor according to still another embodiment of the present invention.

FIG. 7 is an explanatory diagram of a drive mechanism of a general retractable headlight.

8A to 8C are explanatory diagrams showing a series of operations of the drive mechanism shown in FIG. 7, and FIGS. 8A to 8C are explanatory diagrams of a series of operations for changing the headlight from a closed state to an open state. (C) ~
(E) is an explanatory view of a series of operations for changing the headlight from the open state to the closed state.

FIG. 9 is an explanatory view showing an example of a waterproof structure of a conventional retractable light motor.

FIG. 10 is a diagram showing another conventional example.

[Explanation of symbols]

20 motor 21 motor housing 30 rotary shaft 32 operation knob 36 breathing hole 40 collar part 52 skirt 60,80 gap 62,68 cover part 70,74 cover
AS011702

Claims (2)

[Scope of utility model registration request] 1. A retractable light motor in which a manual operation part attached to a rotary shaft faces a road surface and is fixed to a vehicle body, the manual operation part being attached to a housing of the motor, and the manual operation part from a peripheral surface of the motor. A skirt member for preventing water droplets from flowing into the skirt member, a collar portion formed around the manual operation portion so as to cover the breathing hole of the motor in a spaced manner, and a collar provided on the inner peripheral side of the skirt member. A waterproof structure for a retractable light motor, comprising: a cover part that cooperates with the part to form a bent gap. 2. A retractable light motor, wherein a manual operation part attached to a rotary shaft is attached to a vehicle body so as to face a road surface, and the manual operation part is attached to a housing of the motor. A skirt member for preventing the inflow of water droplets, and a space around the manual operation portion so as to cover the breathing hole of the motor in a spaced manner and form a curved gap corresponding to the inner peripheral shape of the skirt member. A waterproof structure for a retractable light motor, characterized by comprising a formed collar portion.