JP2686110B2 - Massage machine for vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial applications]

The present invention relates to an automatic difference and a massage machine installed on a backrest of a seat of a vehicle such as a train or an airplane.

[Prior art]

There are various types of massage drive devices for applying pressure stimuli to the back of the human body as the pressure drive mechanism for the treatment elements.However, in the case where they are installed on the backrest of a vehicle seat, the following points must be noted. I won't. That is, when a shock is applied, such as when traveling on uneven roads or when there is a rear-end collision,
In the case of mechanically pressing the treatment element, the impact is applied to the human body as it is, which is very dangerous.
In order to avoid this danger, some treatment elements are configured with a flexible cushion body, but this cannot be expected to have a sufficient massage effect. In consideration of these points, it is preferable to use a form in which an air actuator that expands and contracts by air such as an air sac is used to drive a treatment element having a certain degree of rigidity.

[Problems to be solved by the invention]

With this air actuator, when an impact is applied, the air actuator is compressed, so that the impact applied to the human body is alleviated, and therefore the safety is high. However, this shock mitigation level is not sufficient in terms of safety. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle massager that is highly safe and has a high massage effect.

[Means for Solving the Problems]

Therefore, the present invention is a massage machine which is disposed on the backrest of a seat of a vehicle and presses and drives a treatment element with an air actuator which expands and contracts by air, and an impact detecting means and an output of the impact detecting means. And an emergency exhaust means for exhausting the air in the air actuator. [Operation] According to the present invention, when a shock is applied, the air in the air actuator is discharged by the emergency exhaust means, so that the shock given to the human body by the treatment element is extremely small. [Embodiment] The present invention will be described in detail below with reference to the illustrated embodiment. As shown in FIG. 1, this massage machine includes a massage unit 1, a drive unit 2, and an operating device 3. . The massage unit 1 is incorporated in the backrest of a seat, and includes a base plate 11, a pair of main bodies 12 and 12 fixed on the base plate 11, and a treatment element 13 attached to each main body 12. As shown in FIG. 2, each main body 12 is formed by arranging an air actuator 4 to which a treatment element 13 is fixed in a cylinder 45 having a bottomed cylindrical shape. The air actuator 4 in this case includes a bellows-like rubber 41, an upper plate 40 and a lower plate 42 that are fixed to both ends of the bellows-like rubber 41 by tightening rings 43 to close openings at both ends of the bellows-like rubber 41, and the bellows-like rubber 41. The treatment element 13 is fixed to the upper plate 40 by an intermediate ring 44 which is attached to the outer periphery of the intermediate portion of the above to suppress radial deformation of the bellows rubber 41. Then, by guiding the cylindrical portion 47 provided on the outer peripheral edge of the upper plate 40, the treatment element 3 is projected to the cylinder 45 that makes the movement of the treatment element 13 due to the expansion and contraction of the air actuator 4 stable. An opening 46 is formed to allow it. The drive unit 2 has an air pump 21 as shown in FIG.
And an exhaust valve 22, a pressure sensor 23, and a control circuit 20.
An exhaust valve 22 and a pressure sensor 23 are connected to a pipe 5 that connects with the. The control circuit 20 receives the input from the operating device 3 and the pressure sensor 23.
The operation of the air pump 21 and the exhaust valve 22 is controlled according to the output of the control circuit 20. When an operation command is input from the operation device 3, as shown in FIG. Causes the following operation to be performed periodically. That is, with the exhaust valve 22 closed, the air pump 21 is operated to expand the air actuator 4, thereby causing the treatment element 13 to project from the surface of the cylinder 45. When the internal pressure of the air actuator 4 detected by the pressure sensor 23 reaches the set value, the air pump 21 is stopped and the exhaust valve 22
Is kept closed for a while, and when the required time has elapsed, the exhaust valve 22 is opened and the air in the air actuator 4 is discharged. In this massage machine, by changing the set value and changing the air pressure when the air pump 21 stops, the strength of the finger pressure in the finger pressure operation due to the protrusion of the treatment element 13 can be adjusted. Further, here, the output value of the pressure sensor 23 is constantly monitored by the control circuit 20, and when the pressure becomes abnormally high or a sudden pressure rise occurs, that is, some impact is applied to the vehicle, the air actuator When a situation occurs in which 4 is compressed, the control circuit 20 immediately opens the exhaust valve 22 to perform emergency exhaust. This state is shown in FIG. 6 (b). Although the impact is detected here by the change in the air pressure, a separate acceleration sensor may be provided to detect the impact, and the exhaust valve 22 is also used for emergency exhaust. Although shown as a matter of course, a valve only for emergency exhaust may be provided. Further, when the impact detection is detected by the pressure increase, the emergency exhaust valve itself may detect the pressure increase and automatically exhaust, for example, a spring type relief valve. FIG. 4 and FIG. 5 show an example when installed in a car. As shown in the figure, the massage unit 1 is incorporated into the backrest of the seat 6 and the drive unit 2
Is installed in the trunk room 7, the appearance of the seat is not impaired, the operation sound of the air pump 21 does not reach the inside of the vehicle, and the drive unit 2 is easily maintained. The operation device 3 may be installed on the center armrest 8.

【The invention's effect】

As described above, in the present invention, the impact detection means and the emergency exhaust means for discharging the air in the air actuator by the output of the impact detection means are provided, and when the impact is applied, the air in the air actuator is removed. Since it is discharged by the emergency exhaust means, the impact given to the human body by the treatment element is extremely small, and the safety is high. It is possible to use those having a high massage effect and high rigidity without any problem.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a step sectional view of a main body in the massage unit of the above, FIG. 3 is a schematic piping diagram of the same as above, and FIGS. 4 and 5 are installed in an automobile. 6 (a) and 6 (b) are time charts showing the same operation, where 1 is a massage unit, 4 is an air actuator, 13 is a treatment element, 22 is an exhaust valve, and 23 is an exhaust valve. Indicates a pressure sensor.

Claims (1)

(57) [Claims] 1. A massage machine, which is disposed on a backrest of a seat of a vehicle and presses and drives a treatment element with an air actuator which expands and contracts by air, and which comprises an impact detecting means and an output of the impact detecting means. A vehicle massager, comprising: an emergency exhaust means for exhausting air in the air actuator.