JPH0629063Y2 - Locking mechanism for automobile sun visor - Google Patents

Description

[Detailed Description of the Invention] <Industrial field of application> The present invention relates to a locking mechanism of a sun visor for automobiles, and in particular, as a safety measure, the outer edge of an engaging recess opened at the free end of the sun visor is made of a soft skin. It is designed to be wrapped up.

<Prior Art> According to Japanese Patent Application No. 60-266069 and Japanese Patent Application No. 60-266070 filed previously, the applicant has a light-shielding state in which the vehicle is pivotally attached to a ceiling wall of an automobile and hung from the ceiling surface, A sun visor for automobiles that can rotate in a non-light-shielding state almost parallel to the ceiling surface,
This sun visor has an engaging recess that opens at the free end that is the lower end in the light-shielded state, and a ceiling surface that protrudes into the engagement recess when the sun visor is in the non-light-shielding state and holds the sun visor in the non-light-shielding state. A locking mechanism for an automobile sun visor having a supported locking projection is proposed.

<Problems to be solved by the device> However, when the sun visor is in the light-shielded state, the free end, which is the lower end of the sun visor, is located above the driver or the assistant. There is a risk of bumping.

Therefore, as a safety measure, it is required that the portion that may hit the head or the forehead be covered with a soft material.

Therefore, the same consideration is required when the engaging recess is provided at the free end of the sun visor, but this point is not taken into consideration in the previous application.

<Means for solving the problem> Therefore, the locking mechanism of the automobile sun visor of the present invention is pivotally attached at one end to the ceiling wall of the automobile and hangs down when the light is blocked, and when the light is not blocked, the free end is placed along the ceiling. As a locking mechanism for the sun visor to be locked, a box-shaped base made of elastic plastic is attached to the free end of the sun visor, a box-shaped inner case of the same quality is engaged in the base, and the hollow part of the case is moved outward. The inner case, which is designed to receive the ceiling-side locking projection, is inserted into the inside of the base until it sinks. The inner case has a chevron projection on the outer periphery at a right angle to the insertion direction. And, the chevron-shaped protrusion is a quartet fragment by the X-shaped slit cut into the part of the outer skin of the sun visor that covers the base accommodating part, as the inner case is inserted, It is characterized in that it has a size suitable for being pressed into each inner wall of the base while being digged in and fixed so that it cannot be pulled out backwards.

<Operation> Therefore, according to the present invention, as shown in FIG. 1, the inner case 15 may be fitted into the accommodating portion 12 of the base 13 together with the outer skin 11. That is, when the inner case 15 is fitted, as shown in FIG. 14 and FIG.
A part of the
The outer edge of can be covered with the soft epidermis 11.

<Example> The present invention will be described below based on an example shown in the drawings.

In FIG. 2, reference numeral 1 denotes left and right sun visors for a driver's seat and a passenger's seat, and a horizontal shaft 2 of this sun visor 1 is rotatably attached to a bracket 4 fixed to a ceiling wall 3. Here, as shown in FIG. 3, the ceiling wall 3 is provided with recesses 5 substantially the same size as the left and right sun visors 1, and the brackets 4 are fixed in the recesses 5 to fix the sun visor 1 to the ceiling wall 3 When the non-light-shielding state is almost parallel to the above, the sun visor 1 is housed in the recess 5 with the snap ring so as to be flush with the ceiling wall 3. In FIG. 2, the right sun visor 1 is in a non-light-shielding state substantially parallel to the ceiling wall 3, and the left sun visor 1 is in a light-shielding state in which the sun visor 1 rotates downward about the horizontal axis 2.

On the other hand, as shown in FIGS. 2 and 3, each sun visor 1
The engaging recess 6 is provided at the free end which is the lower end in the light-shielded state, and when the sun visor 1 is in the non-light-shielding state, the ceiling wall 3 facing the engagement recess 6, that is, the inner edge of the recess 5 is provided. Incorporates a latch mechanism 8 provided with a locking convex portion 7 which projects into the engaging concave portion 6 and holds each sun visor 1 in a non-light-shielding state.

The sun visors 1 located on both the left and right sides and the latch mechanism 8 for locking the sun visors 1 are paired with each other and have the same structure. Therefore, the sun visor 1 on one side and the latch mechanism 8 thereof will be described below.

The sun visor 1, as shown in FIGS. 1 and 4,
A hard thin plate material 9 such as ABS resin, a light and relatively thick pad material 10 such as foamed polyurethane adhered to the upper surface of the plate material 9, and fluff covering the plate material 9 and the outer surface of the pad material 10. It is composed of a soft skin 11 such as a relatively short moquette or PVC sheet. The tip of the free end of the pad material 10 has a sector shape whose cross section is approximately 1/4 circular.

As shown in FIG. 4, the engaging concave portion 6 is fitted with a base 13 having a hollow accommodating portion 12 whose one end is at least open, and a snap fit into the accommodating portion 12 of the base 13 to form the engaging convex portion. It is composed of an inner case 15 having a hollow portion 14 for receiving 7 and the base 13 and the inner case 15 are molded articles of elastic plastic (FIG. 4).

As shown in FIG. 5 to FIG. 9, the base 13 has a box-shaped housing 12 with front and rear surfaces opened, and a pair of laterally projecting mounting pieces 16 and 16 are provided at both left and right ends. ing. Then, the left and right side walls 17, 17 of the accommodating portion 12 are formed into a fan shape having a substantially 1/4 circular shape, the front edge of which is substantially aligned with the free end surface of the pad material 10, and the inner case 15 is provided at the rear end thereof. The tongue-shaped elastic claw pieces 18, 18 to be locked project inwardly facing each other. Further, a lateral L-shaped bent rising portion 19 is provided at the rear end of the bottom wall of the housing portion 12, and the rising portion 19 regulates the insertion amount of the inner case 15. It should be noted that a mounting hole 16 'that penetrates vertically is provided at the center of each mounting piece 16.

On the other hand, as shown in FIGS. 10 to 13, the inner case 15 has a hollow box shape with an open front surface, and its rear surface is closed by a partition wall 20. Further, on the left and right side surfaces of the inner case 15, recesses 21, 21 into which the elastic claw pieces 18 are fitted are provided at the rear ends thereof, and a plurality of chevron-shaped projections 22 ... . Further, the front edge portion of the inner case 15 is a substantially arcuate surface along the front edge of the side wall 17 of the base 13.

Next, the procedure for assembling the base 13 and the inner case 15 will be described. As shown in FIG. 4, first, a notch 10 'into which the base 13 fits in the snap is provided at the free end of the pad material 10. The base 13 is fitted into the cutout portion 10 ', and the bottom surface thereof is placed on the upper surface of the plate member 9, and the mounting hole 16' of the mounting piece 16 is mounted.
Then, the pin 23 is driven into the plate member 9, and the tip of the pin 23 is caulked to fix it. Then, as shown in FIG. 1, the entire outer surfaces of the plate material 9 and the pad material 10 are covered with a skin 11. When the outer skin 11 is covered, the front surface of the opening of the accommodating portion 12 of the base 13 is also covered with the outer skin 11. Therefore, an X-shaped slit 24 is inserted in the outer skin 11 that covers the front surface of the opening, and the inner case is aligned with this slit 24.
It suffices to insert 15 from the rear end toward the accommodating portion 12 of the base 13.

That is, when the inner case 15 is inserted,
Each of the divided pieces 11 ′ divided into four by the slit 24 on the outer peripheral surface of 15 is fitted into the accommodating portion 12 while being sunk from four sides. Then, when the inner case 15 is inserted further deeply into the accommodating portion 12, the rear end thereof comes into contact with the rising portion 19 of the base 13 and stops, and at that time, the elastic claw piece 18 of the base 13 is fitted into the recess portion 21 of the inner case 15. The inner case 15 is fixed in the accommodating portion 12 so as not to slip backward. Also, at this time, each minute piece 11 'sunk with the inner case 15 is also
It is tightly sandwiched between the inner wall surface inside the housing 12 and the outer wall surface of the inner case 15, and the protrusion of the inner case 15
22 bites into each segment 11 'and is fixed so as not to slip backward.
The protrusion 22 of the inner case 15 also has a function of hooking each of the fragments 11 ′ and pulling it into the accommodating portion 12 when the inner case 15 is inserted.

By thus fitting the inner case 15 into the accommodation portion 12 of the base 13, the opening end surface of the accommodation portion 12 of the base 13 is covered with the skin 11.
The outer front surface of the hollow portion 14 of the inner case 15 is sunk into the base 13 as shown in FIG. 14 to open as an engaging recess 6 at the free end of the sun visor 1.

Next, the latch mechanism 8 will be briefly described. The latch mechanism 8 is fixed on a frame-shaped housing 25 and a bottom wall of the housing 25 as shown in FIG. A fixing member 27 having a cam groove 26, and a locking convex portion 7 which is held on the upper surface of the fixing member 27 so as to be slidable in the front-rear direction and which projects at the tip into the engaging concave portion 6 of the sun visor 1. Between the locking member (28) and the lower surface of the locking member (28) and the upper surface of the fixing member (27), it is possible to move slightly up and down with respect to the locking member (28) and to move in the width direction of the locking member (28). An actuating member 32 that is retained and that has a projection 29 that traces the cam groove 26 on its lower surface and an action piece 31 that projects upward through a guide hole 30 formed in the width direction of the locking member 28 on its upper surface,
A push lead 33, which is held movably in the vertical direction along the front wall of the housing 25, a first arm 34 that acts on the action piece 31 of the actuating member 32, and a second arm 35 that acts on the push button 33.
A rotation lever 36 pivotally mounted between both side walls of 25, a torsion spring 37 for urging the rotation lever 36 in one direction, and a coil spring 38 for urging the locking member 28 in the backward direction. Other members except the torsion spring 37 and the coil spring 38 are plastic molded products.

A frame-shaped receiving frame 39 that guides the vertical movement of the push button 33 is provided on the upper portion of the front wall of the housing 25, and a stopper piece 40 laterally extended from the upper end of the push lead 33 contacts the receiving frame 39 from above. This restricts the lowermost position of the push button 33.

Further, on the upper portions of both side walls of the housing 25, the short shafts 41, 41 are projected from the left and right with a space slightly wider than the thickness of the rotary lever 36, and the rotary lever 36 is pivoted on one of the short shafts 41. While wearing it, wind the torsion spring 37 around the other short shaft 41,
One end of the torsion spring 37 is fastened to the inner surface of the side wall from which the short shaft 41 projects, and the other end is fastened to the turning lever 36. Therefore, the torsion spring 37 biases the turning lever 36 in one direction, and also prevents the turning lever 36 from coming off the short shaft 41.

Further, the fixing member 27 is provided with a boss 42 extending rearward, and the receiving member 43 is provided on the rear portion of the upper surface of the locking member 28.
The coil spring 38 is compressed between the boss 42 and the receiving piece 43.
Therefore, in the locking member 28, the locking projection 7 is the housing 25.
The coil spring 38 constantly urges the retracted position of the front wall of the door into the retracted position.

On the other hand, as is well known, the bottom of the cam groove 26 gradually becomes shallower from the starting position 26a to the front of the half-circle heart-shaped intermediate position 26b, and deeper again at the intermediate position 26b, and the remaining half-circle starting position 26a. The front is gradually shallower so that the protrusion 29 can circulate in only one direction. Therefore, the operating member 32 that slides the lower end of the protrusion 29 on the bottom of the cam groove 26 is
The locking member can move slightly up and down with respect to the locking member 28.
It must be movably held in the width direction of 28.

Further, the first arm 34 of the rotating lever 36 is provided with the operating piece 31 of the operating member 32.
Is normally located behind, but the operating member 32 is the locking member.
By using the fact that the action piece 31 of the actuating member 32 and the first arm 34 of the turning lever 36 are staggered in the lateral direction by moving 28 in the width direction, The engagement relationship of the action piece 31 of the operating member 32 is released. Furthermore, in addition to this, when the action piece 31 of the actuating member 32 and the first arm 34 of the rotating lever 36 rub against each other, tapered surfaces 31 ',
34 'is formed, and both tapered surfaces 31', 34 'come into contact with each other and slide, whereby the rotating lever 36 slightly moves on the axis thereof against the biasing force of the torsion spring 37, and the acting piece 31 Dodge sideways and try to go too far.

Although the cam groove 26 is formed on the upper surface of the fixing member 27 and the fixing member 27 is fixed on the bottom wall of the housing 25, the present invention is not limited to this, and the cam groove 26 is directly formed on the bottom wall of the housing 25. If possible, the fixing member 27 becomes unnecessary.

Next, the operation of the sun visor will be described.

First, when the sun visor 1 is used in a light-shielded state, the second arm 35 of the rotating lever 36 projects into the blind hole 33 'opened on the upper rear surface of the push button 33, and the bottom of the blind hole 33' is closed. An operating member that pushes downward to press the push button 33 to the lowest position, and the other first arm 34 projects from the upper surface of the locking member 28 in the retracted position.
The protrusion on the lower surface of the operating member 32 located behind the working piece 31 of 32.
The lower end of 29 is in contact with the bottom of the starting position 26a of the cam groove 26 (FIGS. 20 (a) and (b)).

Next, when the sun visor 1 in the light-shielded state is rotated upward about the horizontal axis 2 to return to the non-light-shielded state, the free end of the sun visor 1 is located at the lower end of the push button 33 just before the non-light-shielded state. The contact is made, and the push button 33 is gradually pushed up by the subsequent operation. Therefore, the second arm 35 of the rotating lever 36 pushes up at the bottom of the blind hole 33 'of the push button 33, so that the rotating lever 36 rotates upward against the urging force of the torsion spring 37 and the push button
The doorway 44 is opened as 33 rises. On the other hand, when the turning lever 36 turns, the first arm 34 pushes the action piece 31 of the actuating member 32 from behind, and accordingly, the locking member 28 moves forward against the bias of the coil spring 38. Then, the locking convex portion 7 of the locking member 28 projects outward from the entrance 44, and projects into the engaging concave portion 6 of the sun visor 1. As the actuating member 32 advances, its projection 29 traces in the cam groove 26 from the starting position 26a to the intermediate position 26b, at which time the actuating member 32 also moves in one direction in the width direction of the locking member 28. Move slightly.

And the sun visor 1 goes too far in the non-light-shielded state,
If it is rotated to a position where it cannot rotate any more, the operating member
The projection 29 of 32 is a guide path 26c to the intermediate position 26b in the cam groove 26.
It reaches the entrance of (Fig. 21 (a), (b)).

Therefore, when the hand is released from the sun visor 1, the restoring force of the torsion spring 37 acts to rotate the rotating lever 36 in the reverse direction to push the push button 33.
To push back the locking member 28 to the retracted position due to the restoring force of the coil spring 38, but the operating member 32 retracts as the locking member 28 slightly retracts, 29
Passes through the guide path 26c in the cam groove 26,
It reaches 26b and is locked so that it cannot be returned (Fig. 22 (a),
(b)). For this reason, the locking member 28 stops when it is slightly retracted, and the locking projection 7 of the locking member 28 engages with the engaging recess 6 of the sun visor 1.
The sun visor 1 is locked in a non-light-shielded state because it is in a state in which it has rushed in.

By the time the projection 29 passes through the guide path 26c in the cam groove 26 and reaches the heart-shaped intermediate position 26b, the actuating member 32 also slightly moves in the width direction of the locking member 28 in the opposite direction. Moving. Further, since the push button 33 is also slightly lowered, it is pushed by the lower end of the push button 33 and the sun visor 1 returns a little downward and rotates, but the upper surface of the locking convex portion 7 is the upper surface of the engaging concave portion 6 facing downward. The return rotation of the sun visor 1 is stopped only by being pressed against.

On the other hand, in order to bring the sun visor 1 locked in the non-light-shielding state into the light-shielding state again, the free end of the sun visor 1 is pushed toward the bottom of the recess 5 of the ceiling wall 3. This allows the push button
33 and the second arm 35 of the turning lever 36 are pushed up, the turning lever 36 turns against the torsion spring 37, and its first arm.
The action piece 31 of the operating member 32 is pushed by 34, and the locking member 28 advances. Then, as the locking member 28 advances, the projection 29 of the actuating member 32 enters the escape passage 26d in the cam groove 26, which has an inclination opposite to that of the guide passage 26c (Figs. 23 (a), (b)). )). At this time, since the actuating member 32 moves in the width direction of the locking member 28, which is the same as when the actuating member 32 moves to the guide path 26c, the protrusion 29 of the actuating member 32 has the projection 29 of the escape path 26d.
When reaching the outlet of the action member 32, the action piece 31 of the actuating member 32 and the first arm 34 of the turning lever 36 are staggered in the lateral direction.

Therefore, the locking member 28 is quickly pushed back to the retracted position by the restoring force of the coil spring 38, and at that time, the locking projection 7 is withdrawn from the inlet / outlet 44 and comes out of the engagement recess 6 of the sun visor 1. At the same time, the rotation lever 36 is returned and rotated by the restoring force of the torsion spring 37, and the bottom of the blind hole 33 'of the push button 33 is pushed down by the second arm 35 thereof, so that the push button 33 descends to the lowest position and the push button 33 Pushed by the lower end of 33, the free end of the sun visor 1 projects a little below the recess 5 of the ceiling wall 3.

As the locking member 29 is pushed back, the operating member 32
The projection 29 of the cam follows the remaining half circumference of the cam groove 26 and the starting position 26
Returning to a, the actuating member 32 also slightly moves in the width direction of the locking member 28 in the opposite direction to that at this time, so that the projection 29
The first arm 34 of the rotating lever 36 is positioned again behind the action piece 31 of the actuating member 32 at the position where the first arm 34 has returned to the starting position 26a (first position).
Fig. 24 (a), (b)).

In this way, the free end of the sun visor 1 is slightly projected from the recess 5 of the ceiling wall 3, so insert your finger into the recess 5,
By grasping the free end of the sun visor 1 and rotating it downward about the horizontal axis 2, the light can be shielded.

Not only the sun visors 1 for the driver's seat and the passenger's seats located on the left and right, but also a center sun visor 1'located between the two seats can be used as a locking mechanism (Fig. 2).

Further, the latch mechanism 8 may be provided with a locking convex portion 7 which projects into the engaging concave portion 6 of the sun visor 1 and holds each sun visor 1 in a non-light-shielding state. It may be provided outside.

<Effect of the Invention> As described above, according to the present invention, by fitting the inner case 15 together with the outer skin 11 into the accommodating portion 12 of the base 13 until it sinks, and at the same time, the outer skin 11 is retracted and fixed so that it cannot be pulled out backward. The outer edge of the housing portion 12 of the base 13 is a sun visor 1
Since it can be covered with the skin 11 like the surface of the sun visor 1, it is safe even when the driver, assistant, head or forehead is hit on the free end which is the lower end of the sun visor 1 in the light-shielded state. Not only that, the sun visor 1 can be reliably locked in the non-light-shielded state, so that it is possible to reliably prevent the sun visor 1 from inadvertently changing from the non-light-shielded state to the light-shielded state during operation.

Further, since the outer skin is wound so as to cover and hide the outer edge of the accommodating portion only by fitting the inner case, it is not necessary to separately wind the outer skin on the outer edge of the accommodating portion, and the manufacturing work efficiency can be improved. Furthermore, even if the base or inner case is provided at the free end that is most noticeable in the light-shielded state, these are not exposed on the surface of the sun visor, so that they do not hurt the driver or passengers and do not damage their appearance.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a partially exploded perspective view, FIG. 2 is a perspective view of a sun visor used in a light-shielded state and a non-light-shielded state, and FIG. 3 is a ceiling wall. And FIG. 4 is an exploded perspective view showing the relationship between the sun visor and the sun visor.
The figure is a front view of the base, FIG. 6 is the same side view, FIG. 7 is the same plan view, FIG. 8 is a cross-sectional view taken along the line VIII-VIII of FIG. 5, and FIG. 9 is IX- of FIG. A sectional view taken along the line IX, FIG. 10 is a front view of the inner case, FIG. 11 is a side view of the same, FIG. 12 is a plan view of a half section, and FIG. 13 is a line XIII-XIII of FIG. 14 is an enlarged cross-sectional view of the engaging recess, FIG. 15 is a horizontal cross-sectional view of the same as above with respect to different halves, FIG. 16 is an exploded perspective view of the latch mechanism, and FIG. Fig. 18 is a longitudinal cross-sectional view of the assembled state of Fig. 18, Fig. 18 is a rear view of Fig. 19, Fig. 19 is a plan view of a part of the cross-section, and Figs. 20 (a), (b) to Fig. 24 (a), (b [Fig. 4] is an explanatory diagram showing the relationship between the sun visor and the latch mechanism at each operation stage of the sun visor. In the figure, 1 is a sun visor, 2 is a horizontal axis, 3 is a ceiling wall, 4
Is a bracket, 6 is an engaging concave portion, 7 is a locking convex portion, 8 is a latch mechanism, 9 is a plate material, 10 is a pad material, 11 is a skin, 12 is a housing portion, 13 is a base, 14 is a hollow portion, 15 is a The inner cases are shown respectively.

Front page continued (72) Inventor Makoto Tamuratani 2 Takaracho, Kanagawa-ku, Yokohama, Kanagawa Nissan Motor Co., Ltd. 72) Creator Masumi Fukumoto 1 184, Maioka-cho, Totsuka-ku, Yokohama-shi, Kanagawa 1 Nifco Co., Ltd. (56) References: 62-116308 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A locking mechanism for a sun visor, one end of which is pivotally attached to an automobile ceiling wall, which hangs down when light is blocked, and whose free end is locked in a posture along the ceiling when not blocked, as a locking mechanism for the sun visor. Attach a box base made of elastic plastic,
Engage a box-shaped inner case of the same quality in the base,
The hollow part of the case is directed outwards to receive the ceiling-side locking projection, and the inner case that is inserted into the base until it sinks is located on the outer periphery of the case in the insertion direction. It has a chevron projection that runs at a right angle, and the chevron projection is inserted into the inner case by inserting a quartet with an X-shaped slit cut into the portion of the skin of the sun visor that covered the base accommodating portion. The locking mechanism of the automobile sun visor is characterized in that it has a size suitable for being pressed against each inner wall of the base while being pushed in and fixed so that it cannot be pulled out backwards.