JP2017192730A - Removable arm structure of bath chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a removable arm structure of a bath chair which is easy to replace an arm, is hard to pinch a hand, and has a long service life.SOLUTION: In a removable arm structure of a bath chair, a backrest tube 301 is provided with a fixing member 303, an arm steel frame 304 is connected to the fixing member 303, a plastic protective cover 305 is fitted to a connection portion of the arm steel frame 304 and the fixing member 303, the arm steel frame 304 is provided as a circular arc structure, a circular arc transition part 307 is provided at a connection portion of a terminal end of the arm steel frame 304, an arm cover 308 is fitted over the arm steel frame 304, and the arm cover 308 is fixedly connected to the arm steel frame 304 by a screw 312.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a chair, and more particularly, to an improved removable arm structure bath chair.

  Currently, bath chairs usually have an auxiliary function when a person bathes or showers, and many are used for elderly people or children. The conventional bath chair is inconvenient to maintain and clean the chair arm, and its structure is complicated. The arm must be removed with the arm steel frame, and its removal requires professional work. If the arm cover and the arm steel frame are removed, and after cleaning or maintenance is completed, they are attached with screws, and then cannot be secured with nuts, they will not have an anti-rotation function. If the screws cannot be tightened or loosened, the user cannot remove the arm, and it is difficult to replace, clean and install the arm, and the arm steel frame is easily damaged, which affects the service life. In addition, the conventional arm is easy to pinch and injure fingers during the cleaning process. Soldering is used for the arm steel frame, resulting in increased costs and manufacturing processes.

  Patent document 1 is disclosing the folding chair which is pivotally supported so that a rear leg can be opened and closed with respect to a front leg, and can be folded compactly when not in use.

JP 2011-50641 A

  SUMMARY OF THE INVENTION An object of the present invention is to provide a removable arm structure for a bath chair that allows easy exchange of arms, does not easily pinch a hand, and has a long service life.

  In order to achieve the above object, a removable arm structure for a bath chair according to one aspect of the present invention includes a foot, a seat, and a backrest, and the foot includes a forefoot tube and a hindfoot tube cross-connected. The backrest part is constituted by a backrest pipe and a backrest cushion, the backrest pipe and the forefoot pipe are connected, a fixing member is provided on the backrest pipe, and an arm steel frame is connected to the fixing member. A plastic protective cover is fitted to the connecting portion between the arm steel frame and the fixing member, the arm steel frame is connected to the plastic protective cover and the fixing member by a hexagonal tightening nut, and the arm steel frame is provided as an arc structure. A circular arc transition is provided at the end of the arm steel frame, An arm cover is fitted on the arm steel frame, the arm cover and the arm steel frame are fitted to each other, a round hole is provided in the arm steel frame, and an arm cover plastic member is attached to a connection point at the end of the arm cover A through hole is provided in the arm cover plastic member, the round hole and the through hole communicate with each other, and the arm cover is fixedly connected to the arm steel frame by a screw passing through the round hole and the through hole. The arm cover and the arm steel frame are in a vertically connected state around the fixed member.

  The removable arm structure of the bath chair of the present invention makes it easy to replace the arm, does not easily pinch the hand, and has a long service life.

It is an exploded view of the removable arm structure of the bath chair of an embodiment. It is a figure which shows the structure of the arm structure which can remove the bath chair of embodiment. It is a figure which shows the state which decomposed | disassembled the arm steel frame and arm cover in the removable arm structure of the bath chair of embodiment. It is sectional drawing of the arm structure which can remove the bath chair of embodiment. It is a figure which shows the structure of the arm steel frame in the removable arm structure of the bath chair of embodiment. It is a figure which shows the structure of the arm cover in the removable arm structure of the bath chair of embodiment. It is a figure which shows the structure of the plastic protective cover in the removable arm structure of the bath chair of embodiment. It is a figure which shows the structure of the arm cover plastic member in the removable arm structure of the bath chair of embodiment.

  Hereinafter, the removable arm structure of the bath chair according to the present embodiment will be described with reference to the drawings. Note that each of the embodiments described below shows a preferred specific example of the present invention. Therefore, numerical values, shapes, materials, components, arrangement positions of components, connection forms, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims showing the highest concept of the present invention are described as optional constituent elements. Each figure is a schematic diagram and is not necessarily illustrated strictly.

(Embodiment)
As shown in FIGS. 1 and 2, the removable arm structure of the bath chair includes a foot 1, a seat 2, and a backrest 3, and the foot 1 is cross-connected with a forefoot tube 101 and a hindfoot tube 102. The backrest portion 3 is constituted by a backrest tube 301 and a backrest cushion 302, the backrest tube 301 and the forefoot tube 101 are connected, and a fixing member 303 is provided on the backrest tube 301.

  As shown in FIG. 5, an arm steel frame 304 is connected to the fixing member 303.

  As shown in FIG. 7, a plastic protective cover 305 is fitted to a connection portion between the arm steel frame 304 and the fixing member 303, and the arm steel frame 304 is connected to the plastic protective cover 305 and the fixing member 303 with a hexagonal tightening nut 306. The arm steel frame 304 is provided as an arc structure, and an arc transition portion 307 is provided at a connection portion at the end of the arm steel frame 304.

  As shown in FIG. 6, the arm cover 308 is fitted on the arm steel frame 304, the arm cover 308 and the arm steel frame 304 are fitted to each other, and a round hole 309 is provided in the arm steel frame 304.

  As shown in FIG. 8, an arm cover plastic member 310 is attached to a terminal connection portion of the arm cover 308, a through hole 311 is provided in the arm cover plastic member 310, and the round hole 309 and the through hole 311 communicate with each other, The arm cover 308 is fixedly connected to the arm steel frame 304 when the screw 312 passes through the round hole 309 and the through hole 311, and the arm cover 308 and the arm steel frame 304 are in a vertically dynamic connection state around the fixing member 303. The angle range of the arc transition portion 307 is 30 to 80 degrees, and a positioning pin 313 is provided at the lower end of the connecting portion of the arm steel frame 304, and the arm steel frame 304 has a primary press bending structure.

  The fixing member 303 is fixedly attached to the backrest tube 301. The fixing member 303 is an extending part. Further, the plastic protective cover 305 is correspondingly attached to the fixing member 303. The arm steel frame 304 is correspondingly attached to the plastic protective cover 305. The positions of the plastic protective cover 305 and arm steel frame 304 and the fixing member 303 are made to correspond to each other, and are fixed by tightening with a hexagonal tightening nut 306. The thrust and position are controlled by the magnitude of the tightening torque. The hexagonal tightening nut 306 can prevent rotation. After the attachment of the arm steel frame 304 is completed, the arm cover 308 is fitted into the arm steel frame 304. Arm cover plastic members 310 are attached to both ends. A round hole 309 and a through hole 311 are provided in the arm steel frame 304 and the arm cover plastic member 310. The arm cover 308 and the arm steel frame 304 are tightened with the two screws 312. The two arm covers 308 are strongly pressed on the arm steel frame 304. The arm cover 308 can be removed and cleaned or replaced by loosening the screws 312. A positioning pin 313 is provided at the lower end of the connection location of the arm steel frame 304. A baffle plate is provided at the lower end of the plastic protective cover 305. The positioning pin 313 penetrates the lower end of the plastic protective cover 305 and acts as a stopper.

  After installation is complete, the arm moves freely up and down. The fixing member 303 extends to the backrest tube 301 at a constant pitch, and the connection end of the arm steel frame 304 and the fixing member 303 is an arc transition portion 307. When the arm is retracted due to the distance of the section, it is difficult to pinch the hand, and the volume space in which a person sits further increases.

  The removable arm structure of the bath chair of the present embodiment can provide the following beneficial effects.

  A fixing member 303 is provided on the backrest tube 301, an arm steel frame 304 is connected to the fixing member 303, and a plastic protective cover 305 is fitted to a connection portion between the arm steel frame 304 and the fixing member 303. Is connected to the plastic protective cover 305 and the fixing member 303 by a hexagonal tightening nut 306, the arm steel frame 304 is provided as an arc structure, and an arc transition portion 307 is provided at a connection point at the end of the arm steel frame 304. An arm cover 308 is fitted on 304, and the arm cover 308 and the arm steel frame 304 fit each other. Each of the arm steel frame 304 and the arm cover 308 is provided as an arc structure, and the entire arm is easily plastically produced. The arm steel frame 304 has a primary press bending structure, and after press molding and cutting, the primary bending molding is performed based on the design shape to reduce production and manufacturing costs and time, and increase support strength. The arm steel frame 304 and the arm cover 308 fit each other. The arm cover 308 can be easily attached in the arm steel frame 304. The arm steel frame 304 is connected to the plastic protective cover 305 and the fixing member 303 by a hexagonal tightening nut 306. The hexagonal tightening nut 306 can be used to fix the arm, preventing the arm from rotating and tightening the arm. A plastic protective cover 305 is provided on the fixing member 303, and the plastic protective cover 305, the fixing member 303, and the arm steel frame 304 are attached in an overlapping manner. The plastic protective cover 305 protects the arm steel frame 304 and the fixing member 303. Not only can the internal part structure be hidden, the outer appearance is designed to be better. An arc transition portion 307 is provided at the end of the arm steel frame 304, and the angle range of the arc transition portion 307 is 30 to 80 degrees. The fixing member 303 extends to the backrest tube 301 at a constant pitch, and the connection end of the arm steel frame 304 and the fixing member 303 is an arc transition portion 307. When the arm is retracted due to the distance of the section, it is difficult to pinch the hand, and the volume space in which a person sits further increases.

  A round hole 309 is provided in the arm steel frame 304, an arm cover plastic member 310 is attached to a terminal connection portion of the arm cover 308, a through hole 311 is provided in the arm cover plastic member 310, and the round hole 309 and the through hole 311 are provided. The arm cover 308 is fixedly connected to the arm steel frame 304 when the screw 312 passes through the round hole 309 and the through hole 311. After completing the installation of the arm steel frame 304, the magnitude of the torque of the hexagonal tightening nut 306 is adjusted to control the thrust and position of the arm. When adjusting the thrust of the arm, add screw glue and fix it. The arm steel frame 304 continues to be fixedly connected to the backrest tube 301 by the fixing member 303 in the course of use. When the arm cover 308 needs to be replaced, maintained or cleaned, it is only necessary to remove the screws 312 secured to the arm cover 308 and the arm steel frame 304. The arm cover 308 is easy to remove and clean or replace. Further, the arm steel frame 304 and the arm cover 308 are designed to have an arc structure. After the maintenance or cleaning is completed, it is not necessary to distinguish the left and right directions, and the left and right arm covers 308 can be arbitrarily attached and can be widely applied.

  A positioning pin 313 is provided at the lower end of the connection portion of the arm steel frame 304. A plastic protective cover 305 is fitted in a connection portion between the arm steel frame 304 and the fixing member 303. A baffle plate is provided at the lower end of the plastic protective cover 305. The positioning pin 313 penetrates the lower end of the plastic protective cover 305 and acts as a stopper.

  As described above, the removable arm structure of the bath chair in the present embodiment includes the foot 1, the seat 2, and the backrest 3, and the foot 1 includes the forefoot tube 101 and the hindfoot tube 102. The backrest portion 3 is constituted by a backrest tube 301 and a backrest cushion 302. The backrest tube 301 and the forefoot tube 101 are connected to each other, and a fixing member 303 is provided on the backrest tube 301. An arm steel frame 304 is connected to 303, and a plastic protective cover 305 is fitted into a connection portion between the arm steel frame 304 and the fixing member 303. 303, and the arm steel frame 304 has an arc structure. An arc transition portion 307 is provided at the connection point at the end of the arm steel frame 304, the arm cover 308 is fitted on the arm steel frame 304, and the arm cover 308 and the arm steel frame 304 are fitted to each other. A round hole 309 is provided in the steel frame 304, an arm cover plastic member 310 is attached to a terminal connection portion of the arm cover 308, a through hole 311 is provided in the arm cover plastic member 310, and the round hole 309 and the through hole 311 are provided. The arm cover 308 is fixedly connected to the arm steel frame 304 when the screw 312 passes through the round hole 309 and the through hole 311, and the arm cover 308 and the arm steel frame 304 move up and down around the fixing member 303. Target The connection state.

  For example, the angle range of the arc transition portion 307 may be 30 to 80 degrees.

  For example, a positioning pin 313 may be provided at the lower end of the connection location of the arm steel frame 304.

  For example, the arm steel frame 304 may have a primary press bending structure.

  As mentioned above, although the removable arm structure of the bath chair concerning the present invention was explained based on the above-mentioned embodiment, the present invention is not limited to the above-mentioned embodiment.

  In addition, the embodiment can be realized by arbitrarily combining the components and functions in each embodiment without departing from the scope of the present invention, or a form obtained by subjecting each embodiment to various modifications conceived by those skilled in the art. Forms are also included in the present invention.

DESCRIPTION OF SYMBOLS 1 Foot part 2 Seat part 3 Backrest part 101 Forefoot pipe 102 Rear foot pipe 301 Backrest pipe 302 Backrest cushion 303 Fixing member 304 Arm steel frame 305 Plastic protective cover 306 Hexagon tightening nut 307 Arc transition part 308 Arm cover 309 Round hole 310 Arm cover Plastic member 311 Through hole 312 Screw 313 Positioning pin

Claims (4)

It has a foot, seat and backrest,
The foot portion is configured by cross-connecting a forefoot tube and a hindfoot tube,
The backrest part is composed of a backrest tube and a backrest cushion,
The back tube and the forefoot tube are connected,
A fixing member is provided on the backrest tube,
An arm steel frame is connected to the fixing member;
A plastic protective cover is fitted to the connecting portion between the arm steel frame and the fixing member,
The arm steel frame is connected to the plastic protective cover and the fixing member by a hexagonal tightening nut,
The arm steel frame is provided as an arc structure,
An arc transition part is provided at the connection point at the end of the arm steel frame,
An arm cover is fitted on the arm steel frame,
The arm cover and the arm steel frame fit each other,
A round hole is provided in the arm steel frame,
An arm cover plastic member is attached to the connection point at the end of the arm cover,
A through hole is provided in the arm cover plastic member,
The round hole and the through hole communicate with each other,
The arm cover is fixedly connected to the arm steel frame by allowing the screw to pass through the round hole and the through hole,
The arm cover and the arm steel frame are in a vertically connected state around a fixed member. The detachable arm structure of the bath chair according to claim 1, wherein an angle range of the arc transition portion is 30 to 80 degrees. The detachable arm structure of the bath chair according to claim 1 or 2, wherein a positioning pin is provided at a lower end of a connection portion of the arm steel frame. The detachable arm structure of the bath chair according to any one of claims 1 to 3, wherein the arm steel frame has a primary press bending molding structure.

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