JP3057004U - Waterproof structure of elevator chair device for outdoor stairs - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To protect the electric and drive system components of a lift drive unit below a chair seat of an outdoor stair lift chair device from the wetness of rainwater, etc. And a waterproof structure that can be operated and driven safely without failure for a long time. A waterproof case (1) is provided below a seat plate (A) of a chair seat (C) in an outdoor stair lift chair device, and an electric system component (2) for driving the chair seat (C) up and down in the waterproof case (1). And the drive system components 3 are stored. A drain hole 4 is provided at the lowest part of the bottom plate 1a of the waterproof case 1. Further, in the waterproof case 1, the whole of the built-in electronic board 6 is further collectively stored in the resin waterproof case 7.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a waterproof structure for protecting a component in a lifting drive unit disposed under a chair seat from being wet by rainwater or the like in an outdoor stair climbing chair device.

[0002]

[Prior art]

 At present, various types of lifting chair devices arranged side by side on the stairs (symbol S shown in FIG. 1) have been proposed and implemented. Most of them are for indoor use, so it is not necessary to assume that the equipment will get wet, and there is no one that actively takes waterproof measures. Further, in a general stair climbing chair device, a driving device portion having a driving system or an electric system of a chair seat (reference numeral C shown in FIG. 1) is covered with a seat plate (reference numeral A shown in FIG. 1). As a result, the seat plate performs the function of an umbrella, so that even if the elevator device is taken out of the room as it is, the structure is not directly affected by water leakage.

The present inventor has been engaged in the manufacture and sale of a stair climbing chair device having a rotating seat. When the device is installed outdoors, the lower part of the seat may be partially exposed due to the direction change due to the rotation of the seat. If rain falls on it, even if it has a safety cover, rainwater will flow into the cover through gaps such as seams of the cover, and the built-in mechanical parts such as the electric and drive systems will get wet. I realized the necessity of countermeasures for water leakage.

[0004] When a part built in the lower part of the seat gets wet, the corrosion of the metal in that part deteriorates, and in the worst case, it becomes impossible to travel, and in an electric system, water droplets and mold generated in water droplets are generated. For example, the circuit may be damaged due to, for example, trouble of abnormal control.

[0005] Further, even if there is no direct intrusion of rainwater, if the exposed rail (reference numeral L shown in FIG. 1) is wet with rainwater, the adhering water droplets cause the traveling drive gear and guide roller ( Infiltration into the inside through the components R) shown in FIG. 1 or the like, indirectly wets the components centering on the driving parts thereof, and furthermore, when heavy rain is encountered, the water may spread to the electric system components. Furthermore, even if it does not get wet directly with rainwater, if the humidity is high in the summer, if the metal is cold, condensation will form on the metal surface inside the device, which will cause various components and electronic circuits. It may cause wetting.

[0006] In addition, for people with physical disabilities, the stairs themselves are very dangerous spaces where a fall may occur, and sudden failure of the stair lift chair device in that space may cause serious danger. May develop. In particular, an accident at the top of the stairs can result in a large fall accident.

[0007]

[Problems to be solved by the invention]

 The present invention has been made in view of the above circumstances, and in an outdoor stair climbing chair device, protects electric and drive components built in a lower part of a chair seat from rain, etc. The purpose of the present invention is to provide a waterproof structure capable of preventing electric circuit components from being damaged and preventing the circuit from being damaged for a long period of time.

[0008]

[Means for Solving the Problems]

 In order to solve the above problem, the present invention provides a waterproof case 1 at a lower portion of a seat plate A of a chair seat C in an outdoor stair climbing chair device, and moves the chair seat C up and down in the waterproof case 1. This is a waterproof structure of an outdoor stair climbing chair device containing an electric system component 2 and a driving system component 3 for driving.

Further, in the above-described configuration, a water draining hole 4 is provided at the lowest portion of the bottom plate 1a of the waterproof case 1.

Further, in the above configuration, the operation switch is a waterproof switch 5.

Further, in the above configuration, in the waterproof case 1, the whole of the built-in electronic board 6 is further housed in a waterproof case 7 made of resin.

[0012]

[Embodiment of the invention]

 Embodiments of the present invention will be specifically described below with reference to the drawings. According to the present invention, as shown in FIG. 1, a waterproof case 1 is provided below a seat plate A of a chair seat C in an outdoor stair climbing chair device, and the chair seat C is moved up and down in the waterproof case 1. This is a waterproof structure of an outdoor stair climbing chair device that houses and configures an electric system component 2 and a driving system component 3 for driving. The waterproof case 1 can be made of metal or resin, but is preferably made of resin from the viewpoint of preventing dew condensation. A drain hole 4 is provided at the lowest part of the bottom plate 1a of the waterproof case 1.

An operation switch for driving the chair seat C up and down is a waterproof switch 5 that does not allow water to enter the inside thereof. Then, in the waterproof case 1, the whole of the built-in electronic substrate 6 is further collectively stored in the resin waterproof case 7.

[0014]

[Effect of the invention]

 As described above, the present invention protects the electric components 2 and the electric components 3 incorporated in the outdoor stair climbing chair device from the wetness of rainwater and the like by the waterproof case 1 and corrodes and deteriorates the mechanical components. In addition, by preventing the circuit of the electric system component 2 from being damaged, it is possible to safely operate and drive without causing a long-term failure. Further, by providing a drain hole 4 at the lowest portion of the bottom plate 1a of the waterproof case 1, even if water droplets are generated in the waterproof case 1 due to dew condensation on the metal surface or the like, the liquid drops. So that they don't collect.

Further, if the operation switch for raising and lowering the chair seat C is the waterproof switch 5, even if the surface is wet with rainwater, the switch function is protected. Also, if the whole of the built-in electronic board 6 is collectively stored in the waterproof case 7 in the waterproof case 1, rainwater may enter the waterproof case 1 or exude moisture. However, the electronic circuit is protected, and the chair seat C can be safely operated for a long time.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal side view of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Waterproof case 1a Waterproof case bottom plate 2 Electric parts 3 Drive system parts 4 Drain hole 5 Waterproof switch 6 Built-in electronic board 7 Resin waterproof case

Claims (4)

[Utility model registration claims] A waterproof case (1) is provided below a seat plate (A) of a chair seat (C) in an outdoor stair climbing chair device, and a chair seat (C) is provided in the waterproof case (1). ) Is a waterproof structure of an outdoor stair lift chair device containing an electric system component (2) for driving up and down and a drive system component (3). 2. The waterproof structure of an outdoor stair climbing chair device according to claim 1, wherein a drain hole (4) is provided at the lowest part of the bottom plate (1a) of the waterproof case (1). 3. The waterproof structure of an outdoor stair climbing chair device according to claim 1, wherein the operation switch is a waterproof switch (5). 4. The waterproof case (1), wherein the whole of the built-in electronic board (6) is housed collectively in a resin waterproof case (7). The waterproof structure of the climbing chair device for outdoor stairs according to claim 1.