JPH03123Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" The invention has an integrally molded pad material and a support placed on the back of the pad material, and an air bag for adjusting the sitting posture is provided within the pad material. Concerning built-in seats.

``Prior Art'' In such a conventional seat, as shown in FIGS. 4 and 5, an air bag 2 is built into an integrally molded pad material 1, and an air bag 2 is attached to the back of the pad material 1 as a support. When the zigzag spring 3 is arranged, there is a risk that the supply/discharge pipe 2a of the air bag 2, which passes through the pad material 1 and extends rearward from between the zigzag springs 3, may interfere with the zigzag spring 3 and be damaged due to wear or the like. Therefore, carefully select the position of the supply/discharge pipe 2a, and if the supply/discharge pipe 2a bends at the rear, it will easily hit the zigzag spring 3, so in order to protect the supply/discharge pipe 2a, connect the supply/discharge pipe 2a with a corrugated tube 2b. It was common to cover it.

``Problems to be solved by the invention'' However, in such a conventional seat, the setting position of the supply and exhaust pipe 2a is limited to a narrow range, and the corrugated tube 2b is required, making it structurally complex and expensive. Moreover, Colgate tube 2
There was a problem in that the zigzag spring 3 hit the zigzag spring 3 and produced an unpleasant interference sound, making it uncomfortable.

The present invention was made with attention to these conventional problems, and the purpose is to provide a seat that solves the above problems by having a simple structure and not emitting unpleasant interference noise. It is said that

``Means for Solving the Problems'' The gist of the present invention to achieve the above object is to have a pad material integrally molded and a support disposed on the back of the pad material, In a seat with a built-in air bag for adjusting the seating condition,
An air supply and exhaust pipe extends rearward from the air bag through the pad material and between the supports,
The seat is characterized in that a protective protrusion that surrounds the supply and discharge pipe to a height such that the supply and discharge pipe passes through the support body is integrally provided on the pad material.

"Function" Therefore, the protective protrusion surrounds and protects the supply/discharge pipe of the air bag until the supply/discharge pipe passes through the support body, eliminating the need for a corrugated tube for protection, and the protective protrusion protects the supply/discharge pipe from the support body. Because it is interposed between the drainage pipe and
The range of positions where supply and exhaust pipes are installed is larger than in the past.

“Embodiment” An embodiment of the present invention will be described below based on the drawings.

1 to 3 show an embodiment of the present invention.

As can be seen in Figure 3, the backrest 11 of the seat 10
A pad material 20 made of an integrally molded urethane foam or the like is coated with a skin material 12, and the backrest 11 is covered with a skin material 12.
A zigzag spring 30 is disposed as a support so as to spread over the back of the pad material 20 within the pad material 20, and an air bag 40 constituting a lumbar support mechanism for adjusting the seating state is built in the pad material 20.

As can be seen in Figures 1 and 2, the air bladder 4
0 is provided with an air supply/exhaust port 41 through which air enters and exits.
The supply/discharge port 41 extends into the through hole 22 drilled in the back surface 21 of the pad material 20, and the supply/discharge pipe 4 is provided at the end of the through hole 22.
2 are connected, and the supply/exhaust pipe 42 is extended rearward from the back surface 21 of the pad material 20 through between the zigzag springs 30, bent at the bend 43, and further extended to be connected to an air source. ing.

A protective protrusion 23 is integrally provided on the back surface 21 of the pad material 20 so as to surround the supply/discharge pipe 42 and protrude rearward, and the height of the protective protrusion 23 is such that the supply/discharge pipe 42 passes between the zigzag springs 30. It is set to the extent that

In the seat having the above configuration, when the pad material 20 is formed, the air bag 40 with the supply/discharge pipe 42 connected to the supply/discharge port 41 is embedded therein, and the installation of the air bag 40 is completed. When air is fed into the air bag 40 from an air source connected to the end of the supply/exhaust pipe 42, the air bag 40 inflates and the degree of contact of the backrest 11 to the waist of the person sitting on the seat 10 changes, causing air to flow into the air bag 40. Optimum seating comfort can be achieved by selecting the appropriate conditions by allowing air in and out.

Only the supply/discharge pipe 42 is connected to the supply/discharge port 41 of the air bag 40, and a protective tube is not required. , elastic protective protrusion 23
is present, so the supply/discharge pipe 42 does not interfere with the zigzag spring 30. Therefore, no interference noise is generated and the user can sit comfortably.

In the above embodiment, the protective protrusion surrounds the entire circumference of the supply/discharge pipe of the air bag in a ring shape, but it may be surrounded intermittently or need not be ring-shaped. Further, although the lumbar support provided on the backrest is illustrated, the present invention may also be applied to the seat and the thigh support provided there. Further, the support may be a panel or the like other than a zigzag spring.

"Effects of the invention" According to the seat according to the invention, when an air bag for adjusting the seating condition is provided, the end of the air supply/discharge pipe to the air bag on the air bag side is made of pad material. Since it is surrounded and protected by the integrally provided protective protrusion, it is only necessary to leave a space between the support and the supply/discharge pipe that is large enough to allow the protective protrusion to intervene, so that the ends of the supply/discharge pipe can be protected. Restrictions on the location of the pipes are relaxed, increasing the degree of freedom in design, and eliminating the need for protection tubes for the supply and exhaust pipes, eliminating the need for parts and assembly.
The air bag can be easily installed, and parts costs and assembly costs can be reduced.

[Brief explanation of the drawing]

Figures 1 to 3 show an embodiment of the present invention, in which Figure 1 is a horizontal sectional view of the main part inside the seat backrest, Figure 2 is a view in the direction of the arrows in Figure 1, and Figure 3 is a perspective view of the main parts of an automobile cabin showing a part of the seat in cross section, Figs. 4 and 5 show a conventional example, and Fig. 4 is a horizontal cross section of the main parts inside the seat backrest. 5 is a view taken along the arrow in FIG. 4. 10... Seat, 11... Backrest, 20... Padded material, 23... Protective protrusion, 30... Zigzag spring, 40... Air bag, 42... Supply/exhaust pipe.

Claims (1)

[Scope of utility model registration request] In a seat having an integrally molded pad material and a support disposed on the back thereof, and in which an air bag for adjusting the seating condition is built in the pad material, the air bag is passed from the air bag through the pad material to the support body. An air supply and discharge pipe extends rearward from between the pads, and a protective protrusion that surrounds the supply and discharge pipe is integrally projected on the pad material to a height such that the supply and discharge pipe passes through the support. A seat characterized by the following: