JP2005296580A - Bed having adjustable back-lifting mechanism - Google Patents

Bed having adjustable back-lifting mechanism Download PDF

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JP2005296580A
JP2005296580A JP2004145684A JP2004145684A JP2005296580A JP 2005296580 A JP2005296580 A JP 2005296580A JP 2004145684 A JP2004145684 A JP 2004145684A JP 2004145684 A JP2004145684 A JP 2004145684A JP 2005296580 A JP2005296580 A JP 2005296580A
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arm
bed
rotation shaft
back bottom
raising
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JP2004145684A
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JP4595133B2 (en
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Masayasu Mori
將晏 森
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a back lifting mechanism for reducing pressure on a body or a deviation which is generated in lifting the back of the body by adjusting the back lifting mechanism in response to the movement of the back part of a lying person when a bottom corresponding to the back is lifted concerning a bed having a lifting function. <P>SOLUTION: An arm rotation shaft 2 fixed to the main frame 1 of the bed is connected to a back bottom rotation shaft 6 attached to a back bottom 5 with the use of expansible arms 3a, 3b, so as to lift the back by rotating the arm 3a with the arm rotation shaft 2 as a center in the bed. The bed includes the mechanism for enlarging a distance between both the rotation axes by allowing the arm 3b to move in the opposite direction of the arm rotation shaft 2 along the arm 3a together with the rotation of the arm 3a. A position to attach the back bottom rotation shaft 6 to the back bottom 5 and speed to enlarge the distance between the arm rotation shaft 2 and the back bottom rotation shaft 6 in lifting the back are adjusted in response to a body type, a lying position, and the thickness of a mattress, etc. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は背上げ機能を有するベッドにおいて、背に対応するボトム(背ボトム)を背上げする際に、臥床者の背部の動きに合わせて背ボトムの動きを調節することにより背上げ時に生ずるズレや背部の圧迫を軽減させることの出来る背上げ機構に関するものである。  In the bed having a back raising function, when raising the bottom corresponding to the back (back bottom), the shift caused by raising the back bottom by adjusting the movement of the back bottom according to the movement of the back of the bedridden person. The present invention relates to a back raising mechanism that can reduce pressure on the back and the back.

近年、様々な背上げ機構を有するベッドが開発されてきている。従来のベッドでは、多くは、ベッドのボトムを背に対応する背ボトム、腰に対応する腰ボトム等に分割すると共に、屈曲可能に順次連結して構成し、背上げ機構によって背ボトムを、腰ボトムとの連結箇所を中心に回転させて傾斜調節するように構成している。このため、背ボトムを傾斜させると臥床者はマットレスを通して背ボトムから押し出されるように力を受けて、背部や腹部が圧迫され、ズレも生じて快適性が損なわれているのが現状であった。近年、背ボトムの傾斜と共に、背ボトムをベッド頭側にずらすようにして、背ボトムの傾斜時における屈曲箇所の空間を確保するようにした背上げ機構を有するベッドなども提案されているが、背ボトムの動きは固定されており、臥床者の体格、ベッドに対する臥床位置、マットレスの厚さなどの違いに合わせて調節できないため、ズレや圧迫を十分には軽減出来ない。
特開平11−46926 特開2000−60907 特開2000−83760 特開2000−140039
In recent years, beds having various back raising mechanisms have been developed. In many conventional beds, the bottom of the bed is divided into a back bottom corresponding to the back, a waist bottom corresponding to the waist, and the like. The tilt is adjusted by rotating around the connection point with the bottom. For this reason, when the back bottom is tilted, the bedridden person receives the force to be pushed out from the back bottom through the mattress, the back and abdomen are pressed, and the slippage also occurs and the comfort is impaired. . In recent years, along with the inclination of the back bottom, a bed having a back raising mechanism has been proposed in which the back bottom is shifted toward the bed head side so as to ensure the space of the bent portion when the back bottom is inclined. The movement of the back bottom is fixed and cannot be adjusted according to differences in the bedrock's physique, bed position relative to the bed, thickness of the mattress, etc., so displacement and pressure cannot be reduced sufficiently.
JP-A-11-46926 JP2000-60907 JP 2000-83760 JP2000-140039

本出願人は上記の欠点を克服するため、まず臥床者の背部が背上げ中にどの様に移動するか、映像及びモデルを使ってシミュレートし、体格、臥床位置、マットレスの厚さなどの違いで背部の動きがどの様に異なるか検討した。この結果を基に、背上げ機構を備えたベッドにおいて、背上げ時に背ボトムを臥床者の背部の動きに合わせて挙上する事により、身体への圧迫やズレを可及的に抑制可能としたベッドにおける背上げ機構を提供することを目的とする。  In order to overcome the above-mentioned drawbacks, the applicant first simulates how the bedside of the bedridden moves while raising his back, using images and models, such as physique, bed position, mattress thickness, etc. We examined how the movement of the back differs depending on the difference. Based on this result, in a bed equipped with a back raising mechanism, it is possible to suppress pressure and displacement to the body as much as possible by raising the back bottom according to the movement of the back of the bedridden when raising the back. An object of the present invention is to provide a back raising mechanism in a bed.

本発明は上記の目的を達成するために、背上げ機構を有するベッドにおいて、メインフレームの臥床者の腰付近下部に固定したアーム回転軸と背ボトムに取り付けた背ボトム回転軸を伸縮可能なアームで連結し、メインフレームに固定したアーム回転軸を中心にアームが回転することにより背上げを行うベッドで、アームの回転と共にアームが伸びることにより両回転軸間の距離が広がる機構を有する。ここで、背ボトムは背上げに伴う背部の動きにつれて受動的に背ボトム回転軸を中心に回転可能とする。また、背ボトム回転軸の背ボトムへの取り付け位置や背上げに伴うアームの伸び率は可変とし、臥床者の体型、臥床位置やマットレスの厚さなどにあわせて至適位置に調節可能とする。  In order to achieve the above object, the present invention provides an arm that can extend and retract an arm rotation shaft fixed to the lower part of the main frame near the waist and a back bottom rotation shaft attached to the back bottom in a bed having a back raising mechanism. The bed is connected to the main frame and rotated up around the arm rotation axis fixed to the main frame, and has a mechanism that increases the distance between the rotation axes by extending the arm as the arm rotates. Here, the back bottom can be passively rotated about the back bottom rotation axis as the back moves as the back is raised. In addition, the mounting position of the spine bottom rotating shaft to the spine bottom and the rate of arm extension that accompanies the back are variable, and can be adjusted to the optimum position according to the body shape of the bedridden person, the bed position, the thickness of the mattress, etc. .

本発明において背ボトム回転軸の背ボトムへの取り付け位置を臥床者の体型や臥床位置に合わせて調節することと、背ボトムが背部の動きに従って背ボトム回転軸を中心に回転可能とすることで、従来の背上げ機構を持つベッドで背上げしたときに見られる背部と背ボトム間の角度の差が解消でき、背部が広い面で背ボトムに支えられることから背部の圧迫感が減少する。また、背上げ時のアームの伸び率を臥床者の背部の動きに合わせて調節することにより、背部とベッドの背部支持面が同じ軌跡を動くことが出来るので背部とベッド間に生じるズレも軽減することが出来る。  In the present invention, by adjusting the mounting position of the spine bottom rotation shaft to the spine bottom according to the body type and bed position of the bedridden, and by allowing the spine bottom to rotate around the spine bottom rotation shaft according to the movement of the back The difference in angle between the back portion and the back bottom, which is seen when a bed with a conventional back raising mechanism is raised, can be eliminated, and the back portion is supported by the back bottom on a wide surface, so that the feeling of pressure on the back portion is reduced. In addition, by adjusting the rate of arm extension when raising the back according to the movement of the back of the bedridden person, the back and the back support surface of the bed can move on the same trajectory, reducing the gap between the back and the bed. I can do it.

本発明にかかる背上げ機構を有するベッドについて一つの実施例を示し、添付の図面を参照しながら以下説明する。図1は背上げ機構を中心にベッドの一部を示してある。このベッドはベッドのメインフレーム1に固定されたアーム回転軸2と背ボトム5に背ボトム回転軸取り付け金具7により取り付けされた背ボトム回転軸6とがアーム3aおよびアーム3bで連結された構造を有している。アームは左右一対とし、左右のアーム3aはアーム回転軸2の反対側端部付近で連結棒9にて連結されている。また、左右のアーム3bは連結棒8にて連結されている。  One embodiment of a bed having a back raising mechanism according to the present invention will be described and described below with reference to the accompanying drawings. FIG. 1 shows a part of the bed centering on the back raising mechanism. This bed has a structure in which an arm rotating shaft 2 fixed to the main frame 1 of the bed and a back bottom rotating shaft 6 attached to a back bottom 5 by a back bottom rotating shaft mounting bracket 7 are connected by an arm 3a and an arm 3b. Have. The left and right arms 3 a are connected by a connecting rod 9 in the vicinity of the opposite end of the arm rotation shaft 2. The left and right arms 3b are connected by a connecting rod 8.

アーム3bはアーム3a上をアーム3aに沿って移動可能とし、背上げに際してはアーム3aが駆動装置によりアーム回転軸2を中心に回転すると共に、アーム3bがアーム3a上をアーム回転軸から遠ざかる方向へ移動させ、アーム回転軸2と背ボトム回転軸6間の距離を広げる。このとき背ボトム5は臥床者の背部の動きに従って背ボトム回転軸6を中心に受動的に回転可能とする。(図2)  The arm 3b is movable on the arm 3a along the arm 3a. When raising the back, the arm 3a is rotated around the arm rotation shaft 2 by the driving device, and the arm 3b is moved away from the arm rotation shaft on the arm 3a. To increase the distance between the arm rotating shaft 2 and the back bottom rotating shaft 6. At this time, the back bottom 5 is passively rotatable about the back bottom rotation shaft 6 according to the movement of the back of the bedridden person. (Figure 2)

背ボトム回転軸6の背ボトム5への背ボトム回転軸取り付け金具7による取り付け位置は可変とし、臥床者の肩胛骨部と腰部の間に相当する部位で臥床者の体型や好みに合わせて調節する。また、背上げ時のアーム回転軸2と背ボトム回転軸6間の距離が広がる速度、つまりアーム3bがアーム3a上をアーム回転軸の反対方向に移動する速度も可変とし、臥床者の体格、臥床位置やマットレスの厚さなどに応じて調節する。  The mounting position of the back bottom rotating shaft 6 to the back bottom 5 by the back bottom rotating shaft mounting bracket 7 is variable, and is adjusted according to the body shape and preference of the bedridden person at a portion corresponding to the position between the shoulder rib part and the waist of the bedridden person. . In addition, the speed at which the distance between the arm rotation shaft 2 and the back bottom rotation shaft 6 increases when the back is lifted, that is, the speed at which the arm 3b moves on the arm 3a in the opposite direction of the arm rotation shaft, is variable. Adjust according to the floor position and mattress thickness.

アームの伸長機構としては電動機構等も考えられるが、図3の如くベルトを使用して伸長を調節することも考えられる。図3においてベルト10は一端をアーム3b連結棒8の中央付近に固定し、アーム3a連結棒9の中央付近に取り付けたローラー11、両側のアーム3aの中央下部を連結するローラー取り付け棒12の中央付近に取り付けたローラー13を経由してメインフレームに取り付けたベルト固定金具14に取り付ける。このアーム伸長機構ではローラー13とメインフレームに取り付けたベルト固定金具14のベルト固定位置との距離がアーム3aの回転に伴って広がることにより、アーム3bはアーム3a上をアーム回転軸2の反対方向へ移動する。アーム3aの回転に伴うアーム3bの移動速度はローラー取り付け棒12のアーム3aへの取り付け位置とベルトの長さを変更することにより可能である。背下げ時のアーム3bの移動はバネ等の弾性体を用いてアーム回転軸の方向へ牽引することにより行われる。  As the arm extension mechanism, an electric mechanism or the like is conceivable, but it is also conceivable to adjust the extension using a belt as shown in FIG. In FIG. 3, one end of the belt 10 is fixed near the center of the arm 3b connecting rod 8, the roller 11 attached near the center of the arm 3a connecting rod 9, and the center of the roller mounting rod 12 connecting the lower central portions of the arms 3a on both sides. It is attached to a belt fixing bracket 14 attached to the main frame via a roller 13 attached in the vicinity. In this arm extension mechanism, the distance between the roller 13 and the belt fixing position of the belt fixing bracket 14 attached to the main frame increases as the arm 3a rotates, so that the arm 3b moves on the arm 3a in the direction opposite to the arm rotation shaft 2. Move to. The moving speed of the arm 3b accompanying the rotation of the arm 3a can be changed by changing the attachment position of the roller attachment rod 12 to the arm 3a and the length of the belt. The movement of the arm 3b at the time of lowering is performed by pulling in the direction of the arm rotation axis using an elastic body such as a spring.

アームの伸縮機構に関しては本例以外に、アーム3bをアーム3aのアーム回転軸2と反対側端付近に固定し、アーム3a自体が伸縮する機構も考えられる。  As for the arm expansion / contraction mechanism, in addition to this example, a mechanism in which the arm 3b is fixed near the end of the arm 3a opposite to the arm rotation shaft 2 and the arm 3a itself expands and contracts can be considered.

本発明によれば、臥床者の体格、臥床位置、ベッドマットレスの厚さなどに応じて背上げ機構を調節でき、体の動きにそった背上げが可能なので、一層体に負担の少ない背上げが可能となり、長期臥床者など背上げの必要な使用者の福音となる。  According to the present invention, the back raising mechanism can be adjusted according to the physique of the bedridden, the bed position, the thickness of the bed mattress, etc., and the back raising according to the movement of the body is possible. It becomes the gospel of users who need to raise their backs, such as those who are long-term bedridden.

本発明にかかるベッド背上げ機構の一実施例と、その背上げ機構部分の模範的な側面説明図である。  It is an example of the bed back raising mechanism concerning the present invention, and an exemplary side explanatory view of the back raising mechanism part. 図1に示すベッドにおける背ボトムの挙上途中を示した側面説明図である。  It is side surface explanatory drawing which showed the raising middle of the back bottom in the bed shown in FIG. 図2におけるベルトを使用したアーム伸縮機構の説明図である。  It is explanatory drawing of the arm expansion-contraction mechanism using the belt in FIG.

符号の説明Explanation of symbols

1 メインフレームの一部
2 アーム回転軸
3a アーム
3b アーム
4 腰ボトム
5 背ボトム
6 背ボトム回転軸
7 背ボトム回転軸取り付け金具
8 アーム3b連結棒
9 アーム3a連結棒
10 ベルト
11 ローラー
12 ローラー取り付け棒
13 ローラー
14 ベルト固定金具
DESCRIPTION OF SYMBOLS 1 Part of main frame 2 Arm rotating shaft 3a Arm 3b Arm 4 Waist bottom 5 Back bottom 6 Back bottom rotating shaft 7 Back bottom rotating shaft mounting bracket 8 Arm 3b connecting rod 9 Arm 3a connecting rod 10 Belt 11 Roller 12 Roller mounting rod 13 Roller 14 Belt fixing bracket

Claims (2)

背上げ機構を有するベッドにおいて、ベッドのメインフレームに固定したアーム回転軸と、背に対応する背ボトムに取り付けた背ボトム回転軸を伸縮可能なアームで連結し、メインフレームに固定したアーム回転軸を中心にアームが回転することにより背上げを行うベッドで、背上げに際してアームの回転と共にアームが伸びることにより両回転軸間の距離が広がる機構を有する背上げ機構。In a bed with a back-up mechanism, the arm rotation shaft fixed to the main frame is connected to the arm rotation shaft fixed to the main frame of the bed and the back bottom rotation shaft attached to the back bottom corresponding to the back with an extendable arm. A back raising mechanism having a mechanism in which the arm is rotated by rotating the arm around the center, and the distance between both rotation axes is widened by extending the arm along with the rotation of the arm when raising the back. 背ボトム回転軸の背ボトムへの取り付け位置およびアームの伸び率を調節可能とする。The mounting position of the back bottom rotation shaft to the back bottom and the arm elongation rate can be adjusted.
JP2004145684A 2004-04-13 2004-04-13 Bed with adjustable back-up mechanism Expired - Fee Related JP4595133B2 (en)

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JP4595133B2 JP4595133B2 (en) 2010-12-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017183670A1 (en) * 2016-04-20 2017-10-26 株式会社プラッツ Reclining bed

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09252880A (en) * 1996-03-27 1997-09-30 Paramount Bed Co Ltd Bed with floor section operation changing function
JP2001309949A (en) * 2000-03-31 2001-11-06 Proton Caretec Ab Bed with backrest supporting element that can be raised
JP2003299698A (en) * 2002-04-08 2003-10-21 Paramount Bed Co Ltd Back lifting mechanism in bed or the like

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09252880A (en) * 1996-03-27 1997-09-30 Paramount Bed Co Ltd Bed with floor section operation changing function
JP2001309949A (en) * 2000-03-31 2001-11-06 Proton Caretec Ab Bed with backrest supporting element that can be raised
JP2003299698A (en) * 2002-04-08 2003-10-21 Paramount Bed Co Ltd Back lifting mechanism in bed or the like

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017183670A1 (en) * 2016-04-20 2017-10-26 株式会社プラッツ Reclining bed
CN109068856A (en) * 2016-04-20 2018-12-21 株式会社福乐赐 Formula of swaying bed
JPWO2017183670A1 (en) * 2016-04-20 2018-12-27 株式会社プラッツ Reclining bed
CN109068856B (en) * 2016-04-20 2021-11-05 株式会社福乐赐 Reclining bed

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