JPH04132891U - Motorcycle and tricycle seats with variable hardness cushions - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose of the present invention is to
To provide a seat for motorcycles and tricycles whose cushion hardness can be varied. [Structure] In the present invention, the cushion material 20 is composed of a main cushion material 21 and a sub-cushion material 22.
and the sub-cushion material 2 held between the lower plate 32
2 is arranged, and the sub-cushion material 22 is compressed by the adjusting means 30 to make the hardness of the cushion material 20 variable.
Under normal conditions, when a load is applied to the position where the sub-cushion material 22 is provided, the main cushion material 21 and the sub-cushion material 22 are flexible. To adjust the cushioning material 20, the lower plate 32 pushes up and compresses the sub-cushioning material 22 toward the skin material, but the position of the upper plate 31 is regulated by the guide bin 33, and the sub-cushioning material 22 is moved by the lower plate 32. Even if the sheet is compressed, this compression will be performed between the upper plate 31 and the lower plate 32, and the appearance of the sheet will not be affected.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to seats for motorcycles and tricycles, and in particular to variable cushion hardness. Regarding seats for motorcycles and tricycles that can be used.

0002

[Conventional technology]

Various technologies have been proposed to vary the cushion hardness of motorcycle and tricycle seats. For example, there is a technique using an air bag as shown in FIG. this An air bag 63 is provided between the cushion material 61 and the bottom plate 62. By adjusting the amount of air filled into this air bag 63, This is a technology that allows the cushion hardness to be varied. In addition, as shown in Fig. 7, the cushioning material 71 and the bottom of the motorcycle/tricycle seat A plate 73 is placed between the plate 72 and the plate 73 is placed on the cushioning material 71 side. In other words, by applying a force to the skin material side using a coil spring (or leaf spring) 74, the cushion hardness is applied. A technique in which the degree is variable has also been proposed.

[Problem that the idea aims to solve]

0003 In the conventional technology shown in FIGS. 6 and 7 above, as shown by the chain lines in FIGS. There is a problem in that the external shape of the seat for mopeds and tricycles changes; When shaped, there is no excess on the skin material, etc. that makes up the seat for motorcycles and tricycles under no-load conditions. There was a problem with durability due to the added tension. In addition, if an air bag 63 as shown in Fig. 6 is used, a pump for filling air can be used. (not shown), resulting in a complicated mechanism and an increase in costs. There was a problem. In addition, as shown in Figure 7, the cushion hardness can be varied using coil springs, leaf springs, etc. In this technique, it is necessary to dampen the spring 74 accurately. It is necessary to use damping means, for example, a separate cushioning material for damping purposes. , resulting in an increase in the number of structural members.

0004 The purpose of this invention is to change the cushion hardness without deforming the appearance. Our goal is to provide seats for motorcycles and tricycles that can be used for motorcycles and tricycles.

[0005]

[Means to solve the problem]

The motorcycle/tricycle seat equipped with the variable hardness cushion according to the present invention has a bottom A system for motorcycles and tricycles consisting of a cushioning material placed on a plate and covered with a skin material. In the seat, the cushioning material covers at least the bottom plate in the load area. A main cushion material with a recess formed on the front side, and an upper plate inside the recess. and a sub-cushion material sandwiched between the lower plate and the sub-cushion material. The hardness of the cushioning material is made variable by compressing the cushioning material using an adjusting means. It is.

[0006] As an adjustment means, one end of the sub-cushion material is fixed to the bottom of the upper plate. and is arranged to be able to slide on the bottom plate and extend below the bottom plate. The guide pin is attached to the bottom plate and is arranged so that it can extend below the bottom plate. adjustment screw and an adjustment dial that screws together with the adjustment screw at the lower position of the bottom plate. The structure consists of the following.

[0007]

[Effect]

In this invention, the cushion material is composed of a main cushion material and a sub-cushion material. It is held in the recess of the main cushion material by the upper plate and the lower plate. Place the sub-cushion material, compress the sub-cushion material using the adjusting means, and then Since the hardness of the cushioning material is variable, the position of the sub-cushioning material can always be adjusted. When a load is applied, the main cushion material and the sub cushion material become flexible. subk The flexibility of the cushioning material means that when the top plate is pushed toward the bottom plate, the adjustment means The guide pin that makes up the guide slides on the sub-cushion material and the lower plate. The dowel acts as a guide and flexes smoothly.

[0008] More specifically, one end is fixed to the bottom of the top plate as an adjustment means. It can slide on the sub-cushion material and the bottom plate, and extends below the bottom plate. A guide pin that can be removed and a guide pin that is attached to the bottom plate and attached to the bottom plate. The adjustment screw is arranged so that it can be extended to the bottom plate, and the adjustment screw and the bottom plate are connected to It is equipped with a matching adjustment dial and an adjustment screw located on the lower plate. By rotating the adjustment dial that is screwed into the Push up and compress the material. However, the position of the upper plate is Even if the sub-cushion material is compressed by the lower plate, This compression occurs between the upper plate and the lower plate, and the sheet It does not affect the appearance of the product.

[0009] In this way, by rotating the adjustment dial, you can adjust the hardness of the sub-cushion material. When riding, the hardness can be changed to reduce fatigue and reduce stress. You can change the top point. Also, if the load area is the backrest position It can be effective as a lumbar support.

0010 In addition, in this invention, the urethane foam that makes up the sub-cushion material that adjusts the load is High quality grade can be used for the cushion and other parts i.e. the main cushion. The main purpose of the material is the appearance shape, and the material is inexpensive and does not have much of a cushioning effect. grade, we can provide inexpensive, high-quality sheets. can.

[0011]

【Example】

Hereinafter, one embodiment of the present invention will be described based on the drawings. In addition, the parts explained below The material, arrangement, etc. do not limit the invention, and may be modified in various ways within the spirit of the invention. It is something that can be done. 1 to 5 show one embodiment of the present invention, and the present invention is for use in motorcycles and tricycles. The seat S is a single seat, and includes a bottom plate 10 and a cushion material 20. , an adjusting means 30, and a skin material 40, and in this example, the load area is This will be explained using the seating area as an example, but the load area includes the back rest and waist rest. It can be done. In addition, the skin material 40 of this example is coated with the traction material 20 and is Although the terminal is processed at the back end of the plate 10, it is possible to use a conventionally known method. The details are omitted.

0012 The bottom plate 10 of this example has four insertion holes 11 in the seating area X, which is a load area. , 11 . There is. The other configurations are the same as those of the well-known bottom plate.

[0013] The cushion material 20 of this example includes a main cushion material 21 and a sub-cushion material 2. It is composed of 2. The main cushion material 21 of this example can be formed by hot curing or the like. The external shape of the seat is made of low-cost, low-density urethane foam, etc. This is sufficient material. For this reason, it has traditionally had a good seat cushion effect. There is no need to use cushioning materials that meet various conditions. This main The cushion material 21 has a seating area X formed in an external shape and located approximately in the center of the seat. A recess 21a that is open toward the bottom plate 10 is formed in the bottom plate 10.

[0014] The sub-cushion material 22 in this example is made of high elasticity urethane foam or foam. Rubber, etc., such as high-density urethane formed by cold curing etc. It is a foam with a specific gravity of 0.075, hardness of 36 kg/diameter of 200 mm. This sub-cushion material 22 is connected to an upper plate 31 constituting an adjusting means 30 which will be described below. and the lower plate 32, and the recess 21a of the main cushion material 21 The sub-cushion material 22 has guide pins (described later) at the four corners. A hole 22a is formed through which the tube 33 is inserted.

[0015] The adjusting means 30 of this example includes an upper plate 31, a lower plate 32, and a guide pin. It is composed of a ring 33, an adjustment screw 34, an adjustment dial 35, and the like. As shown in FIG. 3, the upper plate 31 of this example has both sides of the sheet width bent downward. It is composed of a rectangular plate with a bent part 31a, and its upper surface A reinforcing rib 31b is formed in the. The reinforcing rib 31b of this example is protruded downward. using things. In addition, guide pins are provided on the lower side (back side) of the four corners of the upper plate 31. A guide pin 33 is integrally fixed to the free end of the guide pin 33. Hole 22a of section material 22, hole 32a of lower plate 32, and bottom plate 10 After inserting the stop ring 33a through the hole 11, insert the stop ring 33a from the back side of the bottom plate 10. is installed. Further, the upper plate 31 may be formed of sheet metal; in this case, The guide pin 33 is fixed by welding or the like.

[0016] The lower plate 32 is made of a plate, and has an insertion hole 32 through which the guide pin 33 is inserted. a is formed, and this insertion hole 32a is connected to the insertion hole 11 of the bottom plate 10. It is drilled to match the Further, an adjustment screw is provided at approximately the center of the lower plate 32. 34 is integrally attached. This adjustment screw 34 is attached to the bottom plate 10. The bottom plate 10 is arranged so as to extend from the through hole 12 formed in the bottom plate 10 to the lower side. . The adjustment screw 34 extending from the bottom plate 10 is connected to an adjustment dial 35. They are screwed together and assembled to prevent rattling.

[0017] Next, based on FIGS. 2, 4, and 5, we will explain the operation of the embodiment with the above configuration. I will explain. When the cushion hardness is not adjusted, it is normally in the state shown in Figure 2. When a load is applied to the cushion material 20, the main cushion material 21 and the sub cushion material The tension member 22 is flexible. That is, due to the load, as shown in Figure 4, the main cook The tension material 21 is flexible and presses against the upper plate 31. and upper plate 3 1, the sub-cushion material 22 becomes flexible. At this time, the upper plate 31 A guide pin 33 is attached to the sub-cushion material. 22 hole 22a, the hole 32a of the lower plate 32, and the hole 11 of the bottom plate 10. It is guided and flexes smoothly toward the bottom plate 10 side. When the load is removed, Restore as shown in Figure 1.

[0018] Next, when changing the cushion hardness, the adjustment means is used. That is, FIG. 5 is a sectional view showing a state in which the cushion hardness is changed, and in this example, the adjustment screw When the adjustment dial 35 screwed into the adjustment dial 34 is rotated, the lower plate 32 is As the screw 34 rotates, the sub-cushion material 22 is compressed and moved toward the upper plate 31 side. Moving. As a result, the sub-cushion material 22 is compressed and the cushion hardness increases. At the same time, the amount of flexibility of the sub-cushion material 22 increases with respect to the upper plate 31 and the lower plate. 32. However, the guide pin 33 The upper position of the upper plate 31 is regulated, and the sub-cushion material 22 is Even though it is compressed upwardly by the plate 32, this compression is caused by the upper plate 31 and the lower plate. rate 32 and may affect the appearance of the sheet. do not have. In this way, by rotating the adjustment dial 35, the sub cushion material 22 The hardness can be changed, and when riding, the variable hardness reduces fatigue. You can also change the hip point.

[0019]

[Effect of the idea]

As explained above, the motorcycle/tricycle seat according to the present invention has no deformation in appearance. Change the hardness of the seat cushioning material by varying the hardness of the sub-cushioning material without can do.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a seat for a motorcycle or tricycle according to the present invention.

FIG. 2 is a cross-sectional view of the seat for motorcycles and tricycles according to the present invention.

FIG. 3 is a perspective view of the upper plate of the present invention.

FIG. 4 is a cross-sectional explanatory diagram of the operation of the present invention.

FIG. 5 is a sectional view similar to FIG. 2 showing a state in which the cushion hardness according to the present invention is attached.

FIG. 6 is a schematic cross-sectional view showing a conventional example.

FIG. 7 is a schematic cross-sectional view showing another example of the conventional example.

[Explanation of symbols]

10 Bottom plate 20 Cushion material 21 Main cushion material 21a recess 22 Sub cushion material 30 Adjustment means 31 Adjustment means (upper plate) 32 Adjustment means (lower plate) 33 Adjustment means (guide pin) 34 Adjustment means (adjustment screw) 35 Adjustment means (adjustment dial) 40 Skin material S sheet

Claims (2)

[Scope of utility model registration request] 1. A motorcycle/tricycle seat comprising a cushioning material placed on a bottom plate and covered with a skin material, wherein the cushioning material has a recess formed on the bottom plate side at least in a load area. a main cushion material, and a sub-cushion material disposed in the recess between the upper plate and the lower plate, and the hardness of the cushion material can be varied by compressing the sub-cushion material by an adjusting means. A seat for motorcycles and tricycles equipped with a variable hardness cushion. 2. The adjusting means includes a guide pin having one end fixed to the lower part of the upper plate so as to be slidable on the sub-cushion material and the lower plate and extendable below the bottom plate; A variable hardness cushion comprising: an adjustment screw attached to a plate so as to extend below the bottom plate; and an adjustment dial screwed into engagement with the adjustment screw at a position below the bottom plate. Equipped with seats for motorcycles and tricycles