JP2009185841A - Decorative plate for drum brake - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a decorative plate for a drum brake capable of being mounted without changing the offset of a wheel. <P>SOLUTION: The decorative plate 1 for the drum brake includes a decorative part 12 imitating a disc brake, and a mounting part 11 for mounting the decorative part 12 on the drum brake 16 provided inside the wheel 3 having cavities 7. The drum brake 16 has a protruded portion 21 formed on the outer periphery, and the protruded portion 21 is formed at the approximate center in the axial direction of the drum brake 16. The mounting part 11 is fixed to the protruded portion 21. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a drum brake decorative plate applied to a drum brake mounted on a wheel of an automobile.

Conventionally, as this kind of decorative plate for a drum brake (hereinafter referred to as a decorative plate), a spacer main body fixed between a wheel hub and a drum brake drum to which the hub is attached; There has been disclosed a wheel offset adjusting spacer provided with a pseudo disk portion simulating a disk brake formed to project on the outer edge (for example, Patent Document 1).
With such a configuration, in Patent Document 1, the pseudo disk portion covers the drum brake and prevents the drum brake from being seen through the opening of the wheel, and it looks as if the disk brake is employed. Demonstrate the effect of being able to.
Noto 3055112 gazette

  However, in Patent Document 1, since the wheel offset adjusting spacer is fixed between the hub and the drum of the wheel, it has already been adjusted so that the wheel does not interfere with the undercarriage or the wheel does not protrude from the vehicle body. In this case, the wheel offset is offset in the minus direction by using the wheel offset adjusting spacer, and there is a problem that the offset of the wheel has to be changed.

  Therefore, in view of the above-described problems, an object of the present invention is to provide a drum brake decorative plate that can be attached without changing the offset of the wheel.

  In order to achieve the above object, the invention according to claim 1 is a drum brake decorative plate comprising: a mounting portion attached to a drum brake provided inside a wheel having an opening; and a decorative portion imitating a disc brake. The drum brake has a convex portion formed on an outer periphery thereof, the convex portion is provided at substantially the center in the axial direction of the drum brake, and the mounting portion is fixed to the convex portion. .

  According to a second aspect of the present invention, there is provided an opening penetrating one side and the other side of the decorative part, an opening penetrating the one side surface and the other side surface of the decorative part, and the one side through the opening. And a fin formed to guide air from the surface side to the other surface side.

  In the invention according to claim 3, the attachment portion can be detachably attached to the convex portion even when either the one side surface or the other side surface of the decoration portion is opposed to the wheel. It is characterized by being.

  According to the drum brake decorative plate of the first aspect of the present invention, the drum brake decorative plate can be mounted on the drum brake without changing the offset of the wheel. Further, since the drum brake is provided at substantially the center in the axial direction, the contact area between the wind generated when the vehicle travels and the drum brake increases, so that the drum brake can be efficiently cooled.

  According to the drum brake decorative plate of the second aspect, the drum brake can be cooled more efficiently by actively guiding air to the drum brake. Further, by changing the flow velocity of the air flowing under the floor of the vehicle, the air resistance of the vehicle can be changed and the aerodynamic characteristics of the vehicle can be adjusted.

  Further, according to the decorative plate for drum brake according to claim 3, since both the front and back surfaces can be used properly, one type of decorative plate has two types of characteristics, that is, from one side to the other side across the decorative plate. The two types of aerodynamic characteristics obtained by guiding air from the other side to the one side can be properly used.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. A drum brake decorative plate (hereinafter referred to as a decorative plate) 1 shown in FIG. 1 is disposed inside a wheel 3 in a wheel 2 equipped with a drum brake (not shown in the figure).

  The drum brake is not particularly limited. For example, the drum brake includes a bottomed cylindrical drum and a shoe, the shoe is incorporated inside the drum, and the shoe is pressed against the drum from the inside for braking.

  The wheel 3 includes a hub 4, a rim 5, and a plurality of (six in this figure) spokes 6 radially formed from the hub 4 toward the rim 5. There are holes 7 formed between them. The wheel 3 is fixed to the wheel 2 by bolts 8 and nuts 9 provided on a drum (not shown in the drawing) that rotates together with the wheel 2 in the rim 5. Thus, the inside of the wheel 3 can be visually recognized from the outside.

  Conventionally, in the wheel 2 in which the drum brake is adopted, a part of the drum brake and the components of the wheel 2 such as a shock absorber can be visually recognized through the air hole 7. It was confirmed that the brake was used.

  On the other hand, the decorative plate 1 according to the present embodiment is configured as described above, and further disposed inside the wheel 3, thereby blocking the view from the outside to the inside of the wheel through the holes, In appearance, the wheel 2 can appear as if a disc brake is employed.

  As shown in FIG. 2, the decorative plate 1 is formed of a donut-shaped disk-shaped member made of metal, for example, SUS304, and includes a mounting portion 11 and a decorative portion 12. The mounting portion 11 includes a through hole 13 formed in the center of the disk-shaped member and a bolt insertion hole 14 formed uniformly around the through hole 13. The bolt 15 is inserted into the bolt insertion hole 14. By doing so, the decorative plate 1 can be fixed to the drum brake 16.

  The decorative portion 12 is constituted by a flat surface portion of a disk-shaped member, and a plurality of slits 17 simulating a groove of a disc brake are formed on the surface. The slit 17 extends from the through-hole 13 side toward the outer edge 12a side, and one end 17a on the outer edge 12a side is gently inclined in one circumferential direction. The decorative portion 12 is formed in a size that can be viewed from the outside of the wheel 3 through the hole 7 of the wheel 3 when attached to the drum brake 16.

  As shown in FIG. 3, the decorative plate 1 is fixed to a convex portion 21 provided on the drum 20 of the drum brake 16. The convex portion 21 is formed so that the decorative plate 1 can be held substantially at the center of the drum brake 16 in the axial direction. Specifically, the convex portion 21 is an outer peripheral edge of the drum 20 and is formed in a flange shape at substantially the center in the axial direction of the drum brake 16. A female screw 22 is formed in the convex portion 21 at a position corresponding to the bolt insertion hole 14.

  In the decorative plate 1 configured as described above, before the wheel 3 is mounted, the through hole 13 is fitted into the drum 20 from the outside, and the bolt insertion hole 14 is formed in the female screw 22 formed on the convex portion 21 of the drum 20. In addition, the bolt 15 is inserted into the bolt insertion hole 14 and is fixedly attached to the drum brake 16.

  Next, the wheel 3 is mounted by inserting a mounting hole (not shown) of the wheel 3 into a bolt 8 protruding substantially vertically from the wheel 3 mounting surface of the drum brake 16 and screwing a mounting nut 9. In this way, the decorative plate 1 is attached and fixed to the inside of the wheel 3. Here, the decorative plate 1 can be seen as if a disc brake is adopted by visually recognizing the decorative portion 12 from the hole 7 of the wheel 3.

  The decorative plate 1 is fixed to a convex portion 21 provided on the outer peripheral edge of the drum 20. Thereby, since the decoration plate 1 is fixed without being interposed between the drum brake 16 and the wheel 3 as in the prior art, it can be attached without changing the offset of the wheel 3.

  Further, since the convex portion 21 provided on the drum 20 is provided at substantially the center in the axial direction of the drum brake 16, the wind generated when the vehicle 25 travels (arrow in FIG. 4) and the drum brake 16 come into contact with each other. Therefore, the drum brake 16 can be efficiently radiated and the drum brake 16 can be efficiently cooled by the wind.

  Further, since the decorative plate 1 is simply provided with the slit 17 in the decorative portion 12, the air resistance of the air flowing through the outer side 25a and the inner side 25b of the wheel 2 under the floor of the vehicle 25 as the vehicle 25 travels is reduced. It can be prevented from changing (FIG. 4).

  Next, a modified example of the present invention will be described. The decorative plate 30 shown in FIGS. 5 and 6 includes an opening 32 penetrating the one side surface 31a and the other side surface 31b of the decorative portion 31, and the other side surface 31b from the one side surface 31a side through the opening 32. And fins 33 formed to guide air to the side. Specifically, the decorative plate 30 is cut out in a U shape to form a tongue piece, and the tongue piece is pushed from one side to the other side to form a fin 33 and a U-shaped opening 32 is formed. Form. The decorative plates shown in FIGS. 5 and 6 are formed symmetrically and are used as a pair. The decorative plates shown in FIGS. 5 and 6 are formed so as to be attachable to both the left and right wheels of the vehicle 25, respectively.

  The decorative plate 30 formed in this way may be attached to the drum brake 16 with one side surface 31a facing the wheel 3 side, that is, the outer side 25a of the vehicle 25, and the other side surface 31b is one side with the outer side 25a of the vehicle 25 as one side. The surface 31a may be attached to the drum brake 16 with the surface 25a facing the inner side 25b of the vehicle 25. By appropriately changing the front and back of the decorative plate 30, the air flow with respect to the vehicle 25 can be adjusted.

  That is, in the case where the decorative plate 30 shown in FIGS. 5 and 6 is attached with the one side surface 31a facing the outer side 25a of the vehicle 25, the air flows from the other side surface 31b side as the vehicle 25 moves forward. Since the air is discharged toward the one-side surface 31a, air is discharged from the inner side 25b of the vehicle 25 to the outer side 25a as shown in FIG.

  On the other hand, when the decorative plate 30 shown in FIG. 5 and FIG. 6 is attached with the other side 31b facing the outer side 25a of the vehicle 25, as the vehicle 25 moves forward, the air is moved from the one side surface 31a side. Since the air is sucked into the side surface 31b, air is discharged from the outer side 25a of the vehicle 25 to the inner side 25b as shown in FIG.

  In this manner, the decorative plate 30 shown in FIGS. 5 and 6 can change the amount of air on the one surface 31a side and the other surface 31b side with the decorative plate 30 sandwiched between the fins 33. Thus, the decorative plate 30 can appropriately change the air flow generated by the traveling of the vehicle 25. Therefore, the decorative plate 30 can efficiently cool the drum brake 16 by actively guiding air to the drum brake 16. Further, the decorative plate 30 can change the air resistance of the vehicle 25 and adjust the aerodynamic characteristics of the vehicle 25 by changing the flow velocity of the air flowing under the floor of the vehicle 25.

  Further, the decorative plate 30 is not only attached to the drum brake 16 with the one side surface 31a facing the wheel 3 side, that is, the outer side 25a of the vehicle 25, but also the same decorative plate 30 with the other side surface 31b as the outer side 25b of the vehicle 25. The side surface 31a is configured to be attached to the drum brake 16 toward the inner side 25b of the vehicle 25. That is, the attachment portion 11 of the decorative plate 30 includes the through hole 13 and the bolt insertion hole 14, and has the same configuration on the one side surface 31a and the other side surface 31b. As a result, the decorative plate 30 can be used on both the front and back sides. Therefore, the decorative plate 30 is sandwiched by one type of decorative plate with two types of characteristics, that is, the combination of the rotation direction of the wheel 2 and the direction of the fins. Two types of aerodynamic characteristics obtained by guiding air from the side surface 31a side to the other side surface 31b side and from the other side surface 31b side to the one side surface 31a side can be used properly.

  The present invention is not limited to this embodiment, and various modifications can be made within the scope of the gist of the present invention. For example, in the above-described embodiment, the case where the slit 17 is provided in the decorative portion 12 and the case where the opening 32 and the fin 33 are provided have been described. However, the present invention is not limited to this, as if it is a disc brake. It is sufficient if it can be seen, and a plurality of grooves or a plurality of holes may be provided.

  Further, in the present embodiment, the case where the convex portion 21 is provided on the outer peripheral edge of the drum 20 and the decorative panel is attached to the convex portion 21 has been described, but the present invention is not limited thereto, and is originally formed on the drum brake 16. It is good also as attaching a panel for a decoration to the fin for heat dissipation.

It is a front view which shows the use condition of the decoration plate which concerns on this embodiment. It is a front view which shows the structure of the decoration plate which concerns on this embodiment. It is a longitudinal cross-sectional view which shows the structure of the decoration plate which concerns on this embodiment. It is a figure which shows the flow of the air in the use condition of the decoration plate which concerns on this embodiment, (a) Side view, (b) Plan view. It is a perspective view which shows the modification of the decoration plate which concerns on this embodiment. It is a perspective view which shows the modification of the decoration plate which concerns on this embodiment. It is a top view which shows the flow of the air in the use condition of the modification of the decoration plate which concerns on this embodiment, and is a figure which shows a mode that air is flowing from the inner side of a vehicle to the outer side of a vehicle. It is a top view which shows the flow of the air in the use condition of the modification of the decoration plate which concerns on this embodiment, and is a figure which shows a mode that air is flowing from the outer side of a vehicle to the inner side of a vehicle.

Explanation of symbols

1 Decoration plate (Drum brake decoration plate)
3 Wheel 7 Hole
11 Mounting part
12 Decoration part
16 Drum brake
21 Convex
32 openings
33 fins

Claims (3)

A decorative plate for a drum brake comprising a decorative portion simulating a disc brake, and a mounting portion for attaching the decorative portion to a drum brake provided inside a wheel having holes,
The drum brake has a convex portion formed on an outer periphery, and the convex portion is provided at a substantially center in the axial direction of the drum brake,
The drum brake decorative plate, wherein the attachment portion is fixed to the convex portion. An opening penetrating one side surface and the other side surface of the decorative portion;
The drum brake decorative plate according to claim 1, further comprising a fin formed to guide air from the one surface side to the other surface side through the opening.   The attachment part can be detachably attached to the convex part even when either the one side surface or the other side surface of the decoration part is opposed to the wheel. Decorative plate for drum brakes.

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