JPH021153Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a seat that generates a seating signal when a user takes a seat.

[Prior art]

In general, it is desirable for transportation drivers to be aware of the seating status of passengers, such as expressway route buses where the law does not allow standing passengers, and aircraft where weight balance is required. etc., it is especially important to understand the seating situation of passengers. For this reason,
Conventionally, when a passenger is seated, a Matsuto switch detects the weight on the seat, and the signal generated at this time is used.

However, since the load when sitting is averaged and distributed over the entire cushion of the seat, the pressure applied to the unit area of the Matsuto switch becomes smaller, which worsens the sensitivity and makes it easier for people to sit towards the front or side. There was a drawback that seating detection could not be performed when the vehicle was seated.

[Purpose and structure of the invention]

Therefore, the purpose of this invention is to provide a seat that has good sensitivity and can reliably detect seating even when the seat is unevenly seated.

In order to achieve this purpose, this idea
The weight applied to the seat is transmitted to the pressure plate, and the pressure detection switches arranged in a predetermined number on the entire surface of the pressure plate are pressed by the pressure plate. below,
This invention will be explained in detail using drawings showing examples.

〔Example〕

FIG. 1 is a side view showing an embodiment of this invention. In the figure, 1 is a cushion, 2 is a pressing plate that receives the user's weight imposed on the cushion 1, and 3 has an area approximately equal to the area of the pressing plate 2;
4 is a flat plate, and 5 is a seat base. Of these, the pressing plate 2, the matto switch 3, and the flat plate 4 constitute a load detection device. are doing.

FIG. 2 is a side view of the matsuto switch 3, and FIG. 3 is a plan view, in which protrusions 3a to 3d, which act as contact portions that come into contact with the pressing plate 2, are arranged evenly over the entire surface of the detection surface. The mat switch 3 is configured to send a seating signal from the signal line 3e even when pressure is applied to any of the protrusions 3a to 3d.

In the seat configured as described above, when a user sits in a proper position, the weight of the user is transmitted to the pressing plate 2 via the cushion 1. As a result, the pressing plate 2 presses the mat switch 3 with its entire surface. As mentioned above, the Matsuto switch 3 has four protrusions 3a to 3d arranged over the entire surface of the press plate 2, so the press plate 2 has all the protrusions 3.
Press a to 3d.

On the other hand, when the user is seated unevenly, the weight of the user is not evenly distributed on the cushion 1, but is biased toward a specific part, and this is transmitted to the pressing plate 2.
In this case, the weight transmitted to the matsu switch 3 via the press plate 2 is not applied uniformly over the entire surface of the press plate 2, but the protrusions 3a to 3d of the matsu switch 3 are distributed over the entire surface of the press plate 2. As a result, the pressing plate 2 necessarily presses any one of the protrusions 3a to 3d. As a result, even if the vehicle is unevenly seated, the mat switch 3 reliably detects the seating and sends a seating signal from the signal line 3e.

The Matsuto switch 3 used in this invention supports all of the user's weight on the cushion by the four protrusions 3a to 3d, so the protrusions 3a to
The load applied per unit area of 3d is increased and the sensitivity is improved. For this reason, the protrusions 3a~
Sensitivity can be freely adjusted by adjusting the area of the 3d top or the number of protrusions. In this case, about 3 to 10 pieces are required, and the most appropriate number is about 3 to 10 pieces.

Figure 4 shows a plurality of seats 6 configured in this way.
The seating signals of ₁ to 6 _o are monitored by the monitoring device 7, and a layout diagram of the seats is shown on the panel surface of the monitoring device 7, and the portion of the seats that are occupied is displayed. For example, crew members can monitor the seating distribution of passengers. As a result, the crew can instruct the users to sit in a distributed manner if necessary, which is particularly effective for situations where the load distribution is strictly restricted, such as during takeoff and landing of an aircraft.

Figure 5 shows the pressure plate 2, matsu switch 3, and flat plate 4.
It is _a perspective view when the load detection device ₈ consisting of
have a width slightly narrower than the user's body width, and are placed at a predetermined distance. And load detector 8 ₁
The seating distribution of users can be monitored by monitoring the signals from each of ~8 _o , and since it is rare for users to sit on both adjacent load detectors at the same time, in such cases, the buzzer If a warning sound is emitted to warn users to sit in the correct position, the designed number of passengers can be seated, and the efficiency of seat utilization can be increased.

In the above embodiments, the matsuto switch is provided with a protruding part, but the pressing plate may be provided with a protruding part, and if the matsuto switch is provided with a protruding part, the protruding part is not upward as shown in FIG. 2 but downward. It may be set in

[Effect of idea]

As explained above, since the seat according to the present invention concentrates the load on the seat at several points on the mat switch surface, it has good sensitivity and has the effect of being able to reliably detect seating even when the seat is unevenly seated.

[Brief explanation of the drawing]

Fig. 1 is a side view showing one embodiment of this invention, Fig. 2 is a side view of a matsu switch, Fig. 3 is a plan view of the matsu switch, Fig. 4 is a block diagram showing an example of application, and Fig. 5 is a side view of a matsu switch. It is a perspective view showing an example of application. _DESCRIPTION OF SYMBOLS 1...Cushion, 2...Press plate, 3...Matsu switch, 3a-3d...Protrusion part, 4... Flat plate, _81-85 ...Load detection device.

Claims (1)

[Scope of utility model registration request] A seat that sends a seating signal when a load is applied consists of a pressure plate and a pressure detection switch, which has an area approximately equal to the area of the pressure plate and whose detection surface faces the pressure plate. The press plate and the pressure detection switch are provided with a load detection device that detects the load based on the pressure applied relatively between the plate and the pressure detection switch, and the pressure plate and the pressure detection switch are arranged in such a manner that the pressure plate and the pressure detection switch are evenly distributed in the opposing area. A seat characterized by contact at a plurality of contact areas.