JPH0565685U - Vehicle step opening and closing device - Google Patents

Abstract

(57) [Summary] [Purpose] To allow the steps of a vehicle to be opened in an emergency even if the vehicle speed does not reach zero or the parking brake is not applied. [Constitution] The step opening / closing device 10 is provided with a controller 28 which shuts off the switch opening / closing switch 26 from the power source when the vehicle speed detector 32 or the parking brake detector detects zero vehicle speed or the operation of the parking brake. Further, a manual emergency switch 36 is provided in parallel with the controller 28. In an emergency, the controller 28 is bypassed by closing the emergency switch 36, and the step opening / closing switch 26 is directly connected to the battery power source 24. Therefore, even if the vehicle is completely stopped or the parking brake is not applied, The step can be opened by closing the open / close switch 26.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of an opening / closing device of an opening / closing step that is locked in a vehicle while traveling and is opened for convenience of passengers getting on and off when the vehicle is stopped.

[0002]

[Prior Art]

 Generally, a step opening / closing device of this type drives the step 18 so as to open and close the step 18 pivotally supported by a bracket 16 depending from a floor 12 of the vehicle, as shown in FIG. As shown in FIG. 4, the fluid actuator 20 is provided with a fluid actuator 20 such as an air cylinder, and an electromagnetic valve 22 for driving the fluid actuator 20 and an electromagnetic valve 22 for exciting the electromagnetic valve 22. A step opening / closing switch 26 and a controller 28 provided between the valve 22 and the battery power source 24 are provided. In FIG. 4, reference numeral 30 is a fuse. The controller 28 can connect the step opening / closing switch 26 to the battery power supply 24 only when the vehicle speed detector 32 detects the stop of the vehicle or the parking brake detector detects the operating state of the parking brake. It is controlled so that it can be done.

When the vehicle is traveling, the vehicle speed detector 32 detects the traveling of the vehicle and the parking brake detector detects the non-operation state of the parking brake. Disconnecting 26 from battery power 24, and thus closing step open / close switch 26 does not inadvertently open step 18. On the other hand, when the vehicle is completely stopped, the vehicle speed detector 32 or the parking brake detector activates the controller 28 to connect the battery power supply 24 and the step opening / closing switch 26. Therefore, if the step opening / closing switch 26 is closed. By exciting the electromagnetic valve 22 to drive the fluid actuator 20, step 18 can be opened as shown in FIG. 3 to allow the passenger to get on and off.

[0004]

[Problems to be solved by the device]

 However, in this conventional step opening / closing device, the step opening / closing switch 26 is operated unless the vehicle speed reaches zero or the parking brake is operated even when the vehicle arrives at the scene, such as in an emergency such as fire fighting. Since it was not possible to open the step even if it was closed, there was a drawback that emergency work such as fire fighting activities could not be performed.

An object of the present invention is to avoid the above-mentioned drawbacks and to open a step in an emergency even when the vehicle speed does not become zero or the parking brake is not applied. To provide.

[0006]

[Means for Solving the Problems]

 A first means for solving the problems of the present invention is to provide a fluid actuator for driving the step to open and close a step of a vehicle, an electromagnetic valve for driving the fluid actuator, and an electromagnetic valve for exciting the electromagnetic valve. Is equipped with a step open / close switch and a controller provided between the power supply and the power supply.The controller uses the step open / close switch as a power source when the vehicle speed detector or the parking brake detector detects the stop of the vehicle or the operating state of the parking brake. An object of the present invention is to provide a step opening / closing device for a vehicle, which is further provided with an emergency switch means in parallel with a controller in a step opening / closing device for a vehicle that is controlled so as to be connectable.

A second problem solving means of the present invention is a vehicle step opening / closing device according to the first problem solving means, wherein the emergency switch means comprises an electromagnetic switch which is closed in association with an alarm switch. The present invention is to provide a step opening / closing device for an existing vehicle.

[0008]

[Action]

 Thus, when the emergency switch means is provided in parallel with the controller of the step opening / closing device, the controller is bypassed by closing the emergency switch means in case of emergency, so the step opening / closing switch is directly connected to the power source and the vehicle is Even if the vehicle is not completely stopped or the parking brake is not applied, the step can be opened by closing the step opening / closing switch, so that an occupant can get on and off immediately in an emergency.

[0009]

【Example】

 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now to the drawings in detail, FIG. 1 shows a step opening / closing device 10 for a vehicle according to the present invention. The step opening / closing device 10 opens and closes a step 18 of a vehicle. A fluid actuator 20 (see FIG. 3) such as an air cylinder that drives step 18, an electromagnetic valve 22 that drives the fluid actuator 20, an electromagnetic valve 22 and a battery power supply 24 that energize the electromagnetic valve 22. A step opening / closing switch 26 and a controller 28 provided between the two are provided.

The controller 28 may connect the step opening / closing switch 26 to the battery power source 24 when the vehicle speed detector 32 or the parking brake detector (not shown) detects a stop of the vehicle or an operating state of the parking brake. Control to be able to.

The step opening / closing device 10 of the present invention further includes an emergency switch device 34 in parallel with the controller 28. In the embodiment of FIG. 1, this emergency switch means 34 consists of a single manual emergency switch 36.

Next, referring to the operation of the vehicle step opening / closing device 10 of the present invention, the emergency switch 36 is normally opened, and the vehicle speed detector 32 causes the vehicle to travel when the vehicle is traveling. The controller 28 disconnects the step opening / closing switch 26 from the battery power source 24, and therefore the step 18 fails even if the parking brake detector detects that the parking brake detector is not operating. I can't open it. On the other hand, when the vehicle is completely stopped, the vehicle speed detector 32 or the parking brake detector activates the controller 28 and connects the battery power supply 24 to the step opening / closing switch 26. Therefore, if the step opening / closing switch 26 is closed, The electromagnetic valve 22 is excited to drive the fluid actuator 20, and step 18 can be opened as shown in FIG.

On the other hand, when the vehicle is urgently dispatched for the purpose of fire fighting or the like, the emergency switch 36 is closed, so that even if the vehicle arrives at the scene and the vehicle speed does not become zero or the parking brake is not activated, The step 12 can be opened by closing the step open / close switch 26.

FIG. 2 shows another embodiment of the present invention. In this embodiment, the emergency switch means 34 comprises an electromagnetic switch 40 which is closed in conjunction with an alarm switch 38. In the embodiment shown in FIG. 2, the alarm switch 38 is shown as a warning light switch for driving the red warning light 42 which is driven at the time of emergency dispatch, but this is also a siren motor driven at the time of emergency dispatch. It may be a siren switch for driving.

The device of FIG. 2 is also similar to the device of FIG. 1 unless the electromagnetic switch 40 is normally open and the vehicle speed detector 20 or the parking brake detector is activated, the step opening / closing switch 26 is closed. 18 cannot be opened, but when the alarm switch 38 is closed during an emergency dispatch, the electromagnetic switch 40 is closed and the red warning light 42 or silencer operates to generate a warning and bypass the controller 28. Therefore, even if the vehicle is not completely stopped or the parking brake is not applied, the step opening / closing switch 26 can be closed to open the step 18. Therefore, after arriving at the scene, the occupant can immediately get off the vehicle and perform an emergency work.

[0016]

[Effect of the device]

 According to the present invention, as described above, since the emergency switch means is provided in parallel with the controller of the step opening / closing device, in an emergency, the controller is bypassed by closing the emergency switch means. Is directly connected to the power supply, so that after arriving at the site, the step can be opened by closing the step open / close switch even if the vehicle is not completely stopped or the parking brake is not applied, and accordingly, in the event of an emergency There is a real benefit of getting on and off immediately. In particular, if the emergency switch means is an electromagnetic switch that is excited by an alarm switch, the controller is bypassed at the same time as the emergency dispatch, there is no need to provide a separate manual emergency switch, and the emergency switch is economical. Never forget the closing operation of the means.

[Brief description of drawings]

FIG. 1 is a circuit diagram of an embodiment of a step opening / closing device for a vehicle according to the present invention.

FIG. 2 is a circuit diagram of another embodiment of a step opening / closing device for a vehicle according to the present invention.

FIG. 3 is a side sectional view showing a mounting structure of a vehicle step.

FIG. 4 is a circuit diagram of a conventional step opening / closing device for a vehicle.

[Explanation of symbols]

 10 Vehicle Step Opening / Closing Device 12 Door 14 Floor 16 Bracket 18 Step 20 Fluid Actuator 22 Electromagnetic Valve 24 Battery Power 26 Step Opening / Closing Switch 28 Controller 37 Vehicle Speed Detector 34 Emergency Switch Means 36 Manual Emergency Switch 38 Alarm Switch 40 Electromagnetic Switch 42 Red Alarm light

Claims (2)

[Scope of utility model registration request] 1. A fluid actuator that drives the step so as to open and close a step of a vehicle, an electromagnetic valve that drives the fluid actuator, and an electromagnetic valve that excites the electromagnetic valve and is provided between the electromagnetic valve and a power source. And a controller, wherein the controller connects the step opening / closing switch to the power source when the vehicle speed detector or the parking brake detector detects that the vehicle is stopped or the parking brake is applied. A step opening / closing device for a vehicle, wherein the step opening / closing device for a vehicle is further provided in parallel with the controller. 2. The step opening / closing device for a vehicle according to claim 1, wherein the emergency switch means comprises an electromagnetic switch that is closed in association with an alarm switch.