JP3717268B2 - Bottom structure of bed with wake-up device - Google Patents

Bottom structure of bed with wake-up device Download PDF

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Publication number
JP3717268B2
JP3717268B2 JP06562497A JP6562497A JP3717268B2 JP 3717268 B2 JP3717268 B2 JP 3717268B2 JP 06562497 A JP06562497 A JP 06562497A JP 6562497 A JP6562497 A JP 6562497A JP 3717268 B2 JP3717268 B2 JP 3717268B2
Authority
JP
Japan
Prior art keywords
back bottom
shaft
rotating shaft
wake
bed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP06562497A
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Japanese (ja)
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JPH10243974A (en
Inventor
勝美 田口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tachi S Co Ltd
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Tachi S Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tachi S Co Ltd filed Critical Tachi S Co Ltd
Priority to JP06562497A priority Critical patent/JP3717268B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は、介護用ベッドのボトムに関する。
【0002】
【従来の技術】
使用者の上半身を起こすことができる起床装置を備えるベッドは、使用者の上半身を支持する背ボトムの回転軸の両端がベッドフレームの幅方向に回転自在に支持され、この回転軸をリンクを介してベッドフレーム側に装設した起床装置を構成するモーターの駆動力で直接回転させる構造であり、この回転軸の回転により、背ボトムは回転軸を回転中心に起床するように構成されている。
【0003】
【発明の解決しようとする課題】
従って、前記背ボトムの回転軸を回転中心に回転させることにより起床する背ボトムは、使用者の荷重が曲げ荷重として回転軸の中央部に集中的に入力する。そのため、回転軸の軸方向における中央部が折曲する虞れがあった。従って、斯かる不具合を除去するために回転軸全体を肉厚が厚い大径のパイプで形成しているため、背ボトムの重量増を招くばかりか、ベッドフレームも補強する必要があった。
【0004】
そこで、本発明は前記回転軸を軽量で変形する虞れがないようにすることを目的とする。
【0005】
【課題を解決するための手段】
以上の目的を達成するための本発明は、ベッドフレームの幅方向に回転自在に横架し且つ背ボトムを構成する回転軸と、この回転軸に対して大径の円管で回転軸の軸方向の中央に位置し内部に回転軸が回転可能に挿通する駆動軸とを有し、該駆動軸には、背ボトムの底面に当接すると共に前記モーターの駆動力によって回動するアームを一体に設け、該アームをベッドフレームに設けた起床装置のモーターの駆動力によって回転することにより、前記背ボトムを、回転軸を回転中心に起床させてなることを特徴とするものである。
【0006】
回転軸の軸方向中央は駆動軸に挿通されているため、駆動軸が回転軸の補強部材になり、回転軸の変形を防止できると共に、駆動軸の軸受が不要となる。
【0007】
【発明の実施の形態】
本発明の実施の一形態を、図面に基づいて説明する。
図1、2は、本発明に係る起床装置付のベッドを示し、図中(1)は背ボトムで、この背ボトム(1)には腰ボトム(5)、膝ボトム(6)、脚ボトム(7)が順次上下方向に回動自在に連結されてボトムを形成し、このボトム(1)(5)(6)(7)上にマットレス(3)が敷設される。
【0008】
この背ボトム(1)等は、ベッドフレーム(4)上に支持されており、背ボトム(1)はベッドフレーム(4)に固着したブラケット(41)に両端部が回動自在に支持されているパイプ製の回転軸(10)を回転中心に起床装置によって起床できるように取付けられている。
【0009】
以上の背ボトム(1)は図1、2に示すように、パイプ製の側枠材(11)(11)と、前記ベッドフレーム(4)に固定したブラケット(41)に両端が回転自在に支持されている回転軸(10)と、断面略4角形の前枠材(12)とからなる枠材に、多数の支持プレート(13)…を間隔をあけて並設状に架設してなるものである。
【0010】
なお、幅方向の中央に位置する支持プレート(13A)(13A)は、一端側である回転軸(10)側をその左右の支持プレート(13)(13)に横架したプレート(13B)に溶接され、直接回転軸(10)には固着されていない。また、図中(14)は各支持プレート(13)(13A)を一体に連結する連結管で、この連結管(14)の軸方向中央には、起床装置のアーム(21)が当接する当接プレート(15)が一体に溶接されている。
【0011】
起床装置はベッドフレーム(4)に取付けたモーター(M)と、このモーター(M)の駆動力により進退するロッド(23)と、このロッド(23)にブラケット(22)を介して連結するアーム(21)と、このアーム(21)の基端が一体に溶接されている駆動軸(20)とから構成されている。なお、アーム(21)は略U字状にパイプを折曲したもので、その両遊端が駆動軸(20)に溶接されている。
【0012】
従って、図2に示す使用者(9)が仰臥している状態より操作部材を操作してモーター(M)を作動させると、ロッド(23)は前進してアーム(21)が駆動軸(20)を回転中心に回転する。そのため、アーム(21)の先端が背ボトム(1)の当接プレート(15)を上方に押し上げ、背ボトム(1)は図3の状態から図4に示すように起床して使用者(9)の上半身が起き上げられる。そして、背ボトム(1)を元の水平状態に戻す際には、アーム(21)と背ボトム(1)とは別体であるため、アーム(21)の下降によって背ボトム(1)が強制的に下降することがなく、安全性が向上する。
【0013】
以上の起床装置を構成する駆動軸(20)は、前記背ボトム(1)の回転軸(10)における軸方向の中央部に配設され、回転軸(10)の剛性を向上させている。
【0014】
駆動軸(20)は回転軸(10)に対して大径の円管で、図5に示すように内部に回転軸(10)が回動自在に挿通し、アーム(21)の両遊端が一体に溶接されている。
【0015】
駆動軸(20)の両側に位置する部位の回転軸(10)は、ブラケット(41)を介してベッドフレーム(4)側に回転自在に支持されている。従って、一定の剛性を有し補強する必要がないため、駆動軸(20)内に挿通されていない。
【0016】
斯して、背ボトム(1)を起床させる際、背ボトム(1)は回転軸(10)を回転中心に回動する。そのため、回転軸(10)に使用者の上半身の体重等の荷重が加わり、その荷重が回転軸(10)の中央部に曲げ荷重として集中するが、回転軸(10)の中央部は駆動軸(20)に補強されているため、変形等することがない。
【0017】
なお、図面において、前記腰ボトム(5)は、前記回転軸(10)、駆動軸(20)と、膝ボトム(6)の回転軸(60)との間に各々回転可能に掛止した多数の支承プレート(50)に、連結管(51)を連結してなるものである。
【0018】
【発明の効果】
本発明によれば、ベッドフレームの幅方向に回転自在に横架し、背ボトムの一部を構成する回転軸は、その軸方向の中央に荷重が集中するが、背ボトムを起床させる起床装置の駆動軸により補強されるため、回転軸の変形等を防止できると共に背ボトムの軽量化を図ることができる。
【0019】
加えて、駆動軸を回転軸に軸支されているため、駆動軸の軸受が不要になり、ベッドの構造が簡単になる。
【図面の簡単な説明】
【図1】本発明の平面図である。
【図2】同側面図である。
【図3】本発明の要部の断面図である。
【図4】図3の状態から背ボトムを起床させた状態を示す。
【図5】回転軸の中央部を示す断面図である。
【図6】回転軸の側部を示す断面図である。
【符号の説明】
1 背ボトム
4 ベッドフレーム
10 回転軸
20 駆動軸
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bottom of a nursing bed.
[0002]
[Prior art]
A bed equipped with a wake-up device that can wake up the user's upper body is supported so that both ends of the rotation axis of the back bottom that supports the user's upper body can rotate in the width direction of the bed frame, and this rotation axis is connected via a link. Thus, the back bottom is configured to wake up around the rotation axis by the rotation of the rotation shaft.
[0003]
[Problem to be Solved by the Invention]
Therefore, in the back bottom that rises by rotating the rotation shaft of the back bottom around the rotation center, the user's load is intensively input to the central portion of the rotation shaft as a bending load. For this reason, there is a possibility that the central portion in the axial direction of the rotating shaft is bent. Therefore, in order to eliminate such problems, the entire rotating shaft is formed of a large-diameter pipe having a large wall thickness, which not only increases the weight of the back bottom, but also requires the bed frame to be reinforced.
[0004]
Accordingly, an object of the present invention is to prevent the rotating shaft from being light and deformable.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a rotary shaft that is horizontally mounted in the width direction of the bed frame and that constitutes a back bottom, and a rotary shaft that is a large-diameter circular tube with respect to the rotary shaft. A drive shaft that is positioned in the center of the direction and in which a rotary shaft is rotatably inserted. An arm that contacts the bottom surface of the back bottom and rotates by the drive force of the motor is integrated with the drive shaft. The back bottom is caused to wake up about the rotation axis by rotating the arm by the driving force of the motor of the wake-up device provided on the bed frame.
[0006]
Since the axial center of the rotating shaft is inserted through the driving shaft, the driving shaft serves as a reinforcing member for the rotating shaft, so that deformation of the rotating shaft can be prevented and a bearing for the driving shaft is not required.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings.
1 and 2 show a bed with a wake-up device according to the present invention, in which (1) is a back bottom, and the back bottom (1) includes a waist bottom (5), a knee bottom (6), and a leg bottom. (7) are connected in turn so as to be rotatable in the vertical direction to form a bottom, and the mattress (3) is laid on the bottom (1) (5) (6) (7).
[0008]
The back bottom (1) and the like are supported on the bed frame (4), and both ends of the back bottom (1) are rotatably supported by brackets (41) fixed to the bed frame (4). It is attached so that it can be woken up by a wake-up device with the rotating shaft (10) made of a pipe as the center of rotation.
[0009]
As shown in FIGS. 1 and 2, the back bottom (1) can be rotated at both ends by pipe side frame members (11) and (11) and a bracket (41) fixed to the bed frame (4). A large number of support plates (13) are laid in parallel to each other on a frame member composed of a supported rotating shaft (10) and a front frame member (12) having a substantially quadrangular cross section. Is.
[0010]
The support plate (13A) (13A) located at the center in the width direction is a plate (13B) that is horizontally mounted on the left and right support plates (13) and (13) on the rotating shaft (10) side that is one end side. It is welded and not directly fixed to the rotating shaft (10). In the figure, (14) is a connecting pipe for integrally connecting the support plates (13) and (13A), and the arm (21) of the wake-up device is in contact with the axial center of the connecting pipe (14). The contact plate (15) is welded together.
[0011]
The wake-up device includes a motor (M) attached to the bed frame (4), a rod (23) that advances and retreats by the driving force of the motor (M), and an arm that is connected to the rod (23) via a bracket (22). (21) and a drive shaft (20) in which the base end of the arm (21) is integrally welded. The arm (21) is a pipe bent in a substantially U shape, and both free ends thereof are welded to the drive shaft (20).
[0012]
Therefore, when the motor (M) is operated by operating the operating member from the state where the user (9) shown in FIG. 2 is supine, the rod (23) moves forward and the arm (21) moves the drive shaft (20). ) Around the center of rotation. Therefore, the tip of the arm (21) pushes up the contact plate (15) of the back bottom (1), and the back bottom (1) wakes up from the state of FIG. 3 as shown in FIG. ) The upper body is raised. When the back bottom (1) is returned to the original horizontal state, the arm (21) and the back bottom (1) are separate bodies, so that the back bottom (1) is forced by the lowering of the arm (21). The safety is improved.
[0013]
The drive shaft (20) that constitutes the above-described wake-up device is disposed at the axial central portion of the rotation shaft (10) of the back bottom (1) to improve the rigidity of the rotation shaft (10).
[0014]
The drive shaft (20) is a circular tube having a large diameter with respect to the rotation shaft (10). As shown in FIG. 5, the rotation shaft (10) is rotatably inserted therein, and both free ends of the arm (21). Are welded together.
[0015]
The rotation shafts (10) at the portions located on both sides of the drive shaft (20) are rotatably supported on the bed frame (4) side via the bracket (41). Therefore, since it has a certain rigidity and does not need to be reinforced, it is not inserted into the drive shaft (20).
[0016]
Thus, when raising the back bottom (1), the back bottom (1) rotates about the rotation shaft (10). Therefore, a load such as the weight of the upper body of the user is applied to the rotary shaft (10), and the load is concentrated as a bending load on the central portion of the rotary shaft (10), but the central portion of the rotary shaft (10) is the drive shaft. Since it is reinforced in (20), it does not deform.
[0017]
In the drawing, the waist bottom (5) has a large number of rotatably hooked members between the rotary shaft (10), the drive shaft (20) and the rotary shaft (60) of the knee bottom (6). The connecting pipe (51) is connected to the support plate (50).
[0018]
【The invention's effect】
According to the present invention, the rotating shaft that lays horizontally in the width direction of the bed frame and constitutes a part of the back bottom concentrates the load at the center in the axial direction, but wakes up the back bottom. Therefore, it is possible to prevent deformation of the rotating shaft and reduce the weight of the back bottom.
[0019]
In addition, since the drive shaft is pivotally supported by the rotary shaft, a bearing for the drive shaft is not required, and the bed structure is simplified.
[Brief description of the drawings]
FIG. 1 is a plan view of the present invention.
FIG. 2 is a side view of the same.
FIG. 3 is a cross-sectional view of a main part of the present invention.
FIG. 4 shows a state where the back bottom is raised from the state of FIG.
FIG. 5 is a cross-sectional view showing a central portion of a rotating shaft.
FIG. 6 is a cross-sectional view showing a side portion of a rotating shaft.
[Explanation of symbols]
1 Back bottom 4 Bed frame 10 Rotating shaft 20 Drive shaft

Claims (1)

ベッドフレームの幅方向に回転自在に横架し且つ背ボトムを構成する回転軸と、この回転軸に対して大径の円管で回転軸の軸方向の中央に位置し内部に回転軸が回転可能に挿通する駆動軸とを有し、該駆動軸には、背ボトムの底面に当接すると共に前記モーターの駆動力によって回動するアームを一体に設け、該アームをベッドフレームに設けた起床装置のモーターの駆動力によって回転することにより、前記背ボトムを、回転軸を回転中心に起床させてなることを特徴とする起床装置付のベッドのボトム構造。A rotating shaft that horizontally supports the width direction of the bed frame and constitutes a back bottom, and a large-diameter circular tube with respect to this rotating shaft is located in the center of the rotating shaft in the axial direction, and the rotating shaft rotates inside. A wake-up device having a drive shaft that is inserted through the arm, and an arm that abuts on the bottom surface of the back bottom and that is rotated by the drive force of the motor , and is provided on the bed frame. A bed bottom structure with a wake-up device, wherein the back bottom is woken up about a rotation axis by rotating with the driving force of the motor.
JP06562497A 1997-03-05 1997-03-05 Bottom structure of bed with wake-up device Expired - Fee Related JP3717268B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP06562497A JP3717268B2 (en) 1997-03-05 1997-03-05 Bottom structure of bed with wake-up device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP06562497A JP3717268B2 (en) 1997-03-05 1997-03-05 Bottom structure of bed with wake-up device

Publications (2)

Publication Number Publication Date
JPH10243974A JPH10243974A (en) 1998-09-14
JP3717268B2 true JP3717268B2 (en) 2005-11-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP06562497A Expired - Fee Related JP3717268B2 (en) 1997-03-05 1997-03-05 Bottom structure of bed with wake-up device

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JP (1) JP3717268B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4212335B2 (en) * 2002-10-31 2009-01-21 パナソニック株式会社 bed

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