JP2000118967A - Lifting/lowering device - Google Patents

Lifting/lowering device

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Publication number
JP2000118967A
JP2000118967A JP10290190A JP29019098A JP2000118967A JP 2000118967 A JP2000118967 A JP 2000118967A JP 10290190 A JP10290190 A JP 10290190A JP 29019098 A JP29019098 A JP 29019098A JP 2000118967 A JP2000118967 A JP 2000118967A
Authority
JP
Japan
Prior art keywords
frame
elastic member
linear elastic
rotary shaft
fixed
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.)
Pending
Application number
JP10290190A
Other languages
Japanese (ja)
Inventor
Koichi Tanaka
弘一 田中
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.)
TANAKA SPRING KK
Original Assignee
TANAKA SPRING KK
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 TANAKA SPRING KK filed Critical TANAKA SPRING KK
Priority to JP10290190A priority Critical patent/JP2000118967A/en
Publication of JP2000118967A publication Critical patent/JP2000118967A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To lift or lower a lifted body smoothly and quickly and to stop and hold it at the desired height by providing a linear elastic member whirl-stopping a rotary shaft and a brake releasing member allowing the rotation of the rotary shaft. SOLUTION: When a lever 25 is not gripped, the winding section 23a of a linear elastic member 23 elastically deformed in the shrinking direction is kept in pressure contact with the outer peripheral face of a rotary shaft 19 to make the rotary shaft 19 unrotatable. A pinion gear 21 provided on the rotary shaft 19 at the prescribed position of each rack gear 6 is kept at a meshed state, and a lifted body 15 is held at the prescribed height. For adjusting the height of the lifted body 15, the lever 25 is gripped, the linear elastic member 23 is elastically deformed in the expanding direction so that the winding section 23a becomes larger in diameter than the outer diameter of the rotary shaft 19 to release pressure contact, then the rotary shaft 19 can be rotated.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【発明の属する技術分野】この発明は、例えば洗面台や
調理テーブル等の被昇降体を使用者に応じた高さに調整
する昇降装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevating device for adjusting an elevating body such as a wash basin or a cooking table to a height suitable for a user.

【発明が解決しようとする課題】本出願人は、特願平1
0−131707号において、被固定物に取付けられ、
少なくとも上下フレームを有した固定フレームに対し、
所望の高さ幅で上下方向へ移動可能に支持された可動フ
レームと、可動フレームに前方へ突出して設けられた取
付けフレームに固定される被昇降体と、常には固定フレ
ームに対して可動フレームを所望の高さ位置に保持可能
な保持手段と、固定フレームに回転可能に支持される回
転体と、一端が可動フレームに固定されて回転体に支持
される連結部材と、回転体に支持された連結部材の他端
に取付けられ、少なくとも被昇降体とほぼ等しい重量か
らなるバランス部材とからなる昇降装置を提案した。そ
して上記昇降装置の保持手段は、固定フレームに設けら
れるラックギャと、可動フレームに軸支された回転軸の
一方軸端に設けられたラックギャに噛合うピニオンギャ
及び回転軸の他方軸端に設けられる制動ドラムと、常に
は弾性部材の弾性力により制動ドラムに圧接して回転軸
を停止保持する制動シューとから構成している。しかし
ながら、上記した昇降装置は、固定フレームに設けられ
た少なくとも一対の支持部に可動フレームの下部を支持
して被昇降体を昇降させる構造であるため、固定フレー
ムに対して可動フレームが傾いた状態で被昇降体を昇降
操作する際には傾きによる抵抗が大きくなって被昇降体
を円滑に昇降させることができなかった。又、保持手段
自体、上記した多数の部品で構成されるため、組み付け
作業に手間がかかって製作コストが高コスト化する問題
を有している。本発明は、上記した従来の欠点を解決す
るために発明されたものであり、その課題とする処は、
被昇降体を円滑、かつ迅速に昇降させることができる昇
降装置を提供することにある。又、本発明の他の課題
は、少ない部品点数で被昇降体を所望の高さに停止保持
することができると共に製作コストを低減することがで
きる昇降装置を提供することにある。
The present applicant has filed Japanese Patent Application No. Hei.
No. 0-131707, attached to an object to be fixed,
For a fixed frame having at least upper and lower frames,
A movable frame supported at a desired height and width so as to be movable in the vertical direction, an elevating body fixed to a mounting frame protruding forward from the movable frame, and a movable frame always fixed to the fixed frame. Holding means capable of holding at a desired height position, a rotating body rotatably supported by the fixed frame, a connecting member having one end fixed to the movable frame and supported by the rotating body, and a connecting member supported by the rotating body. There has been proposed an elevating device comprising a balance member attached to the other end of the connecting member and having a weight substantially equal to at least the elevating body. The holding means of the elevating device includes a rack gear provided on the fixed frame, a pinion gear meshing with a rack gear provided on one shaft end of the rotating shaft supported by the movable frame, and a brake provided on the other shaft end of the rotating shaft. It comprises a drum and a brake shoe which constantly presses against the brake drum by the elastic force of the elastic member to stop and hold the rotating shaft. However, since the above-described lifting device has a structure in which the lower portion of the movable frame is supported by at least a pair of support portions provided on the fixed frame and the body to be raised and lowered is moved, the movable frame is tilted with respect to the fixed frame. Therefore, when the object to be lifted is moved up and down, the resistance due to the inclination increases, and the object to be lifted cannot be moved up and down smoothly. Further, since the holding means itself is composed of the above-mentioned many parts, there is a problem that the assembling work is troublesome and the production cost is increased. The present invention has been invented in order to solve the above-mentioned conventional disadvantages, and the subject of the invention is as follows.
An object of the present invention is to provide an elevating device that can smoothly and quickly elevate an object to be raised and lowered. Another object of the present invention is to provide an elevating device capable of stopping and holding the elevating body at a desired height with a small number of parts and reducing the manufacturing cost.

【問題点を解決するための手段】このため本発明は、少
なくとも左右一対の縦フレームを有した固定フレーム
に、被昇降体が取り付けられた可動フレームを上下方向
へ移動可能に支持すると共に固定フレームに設けられた
回転体に支持され、一端が可動フレームに固定されたワ
イヤ部材の他端に被昇降体とほぼ等しい重量のバランサ
を取り付け、被昇降体をほぼ無負荷状態で昇降可能にし
た昇降装置において、固定フレームの各縦フレームに設
けられるラックギャと、可動フレームに回転可能に支持
される回転軸の各端部にそれぞれのラックギャに噛み合
って固定される歯車と、回転軸より小径状に巻回されて
一方端部が可動フレームに固定された状態で回転軸に挿
嵌されて回転軸を回り止めする線状弾性部材と、線状弾
性部材の他方端部に取り付けられ、線状弾性部材を拡径
方向へ弾性変形させて回転軸の回転を可能化する制動解
除部材とを備えたことを特徴としている。
SUMMARY OF THE INVENTION Accordingly, the present invention provides a fixed frame having at least a pair of right and left vertical frames, which supports a movable frame to which an object to be lifted is attached in a vertically movable manner, and a fixed frame. A balancer having a weight substantially equal to that of the object to be lifted and mounted is attached to the other end of the wire member, one end of which is fixed to the movable frame, supported by the rotating body provided at In the apparatus, a rack gear provided on each vertical frame of the fixed frame, a gear meshed with each rack gear at each end of a rotating shaft rotatably supported by the movable frame, and a gear smaller in diameter than the rotating shaft. A linear elastic member which is inserted into the rotating shaft in a state where it is turned and one end is fixed to the movable frame to prevent the rotating shaft from rotating, and the other end of the linear elastic member Ri attached, is characterized in that a brake release member which allows the rotation of the rotary shaft is elastically deformed linear elastic members to the expanded diameter direction.

【発明の実施の形態】以下、本発明の実施形態を図に従
って説明する。図1は昇降装置を洗面台に適用した概略
を示す斜視図である。図2は昇降機構を示す斜視図であ
る。図3は昇降機構の略体側面図である。図4は回転規
制機構の部分斜視図である。図5は回転規制状態を示す
縦断面図である。昇降装置1の固定フレーム3は、例え
ば洗面台や調理テープ等が配置されるスペースの壁面に
固定され、少なくとも左右一対の縦フレーム3a及び縦
フレーム3a相互を所要の間隔をおいて連結する上下一
対の横フレーム3bとから形成される。各縦フレーム3
aは相互の相対面が夫々切欠かれた横断面コ字形に形成
されている。又、上部の横フレーム3b中間部にはスプ
ロケット、プーリ等の回転体5が回転可能に支持されて
いる。更に、各縦フレーム3aの下部側面にはラックギ
ャ6が夫々取付けられている。固定フレーム3の縦フレ
ーム3a下部には可動フレーム7の下部が上下方向へ移
動可能に支持されている。該可動フレーム7は固定フレ
ーム3の縦フレーム3aに支持される縦フレーム7a及
び中間部と上部にて縦フレーム7a相互を連結する横フ
レーム7bとから形成される。そして中間部の横フレー
ム7b中央部には回転体5に支持されたチェーン、タイ
ミングベルト等のワイヤ9の一端が固定され、該ワイヤ
9の他端には後述する被昇降体15を含む昇降部分とほ
ぼ等しい重量のバランサ11が取付けられている。尚、
バランサ11としては固定フレーム3の背面側にて非支
持の宙吊り状態或いは固定フレーム3に取付けられたガ
イドロッド(図示せず)をバランサ11に設けられた孔
(図示せず)内に挿通して上下方向へ移動案内されるよ
うにしてもよい。中間部に位置する縦フレーム7a又は
横フレーム7bには、例えば平面C字形の取付けフレー
ム13が正面側へ突出するように固定され、取付けフレ
ーム13には洗面台や調理テーブル等の被昇降体15が
取付けられる。被昇降体15としては上記した部材に限
定されるものではなく、使用者に応じて高さ調節を必要
とする部材であればよい。中間部に位置する縦フレーム
7a或いは横フレーム7b両端部には取付け板17が正
面側へ突出するように設けられ、各取付け板17には回
転軸19の両端部が回転可能に軸支される。そして回転
軸19の両端部には相対するラックギャ6に夫々噛合う
ピニオンギャ21が取付けられ、固定フレーム3に対す
る可動フレーム7の上下移動に伴って回転軸19を回転
させる。回転軸19の一部には線ばね等の線状弾性部材
23が圧入されている。該線状弾性部材23は所定の巻
数で巻回される巻回部23aと該巻回部23aの各端部
にて接線方向へ延出する作動部23bとを有し、巻回部
23aの内径は非弾性変形状態において回転軸19の外
径より若干小径に設定される。そして該線状弾性部材2
3は作動部23bを押圧して巻回部23aを回転軸19
の外径以上に拡径するように弾性変形させた状態で回転
軸19に挿入した後に押圧を解除して縮径させることに
より回転軸19の外周面に圧接させて取付ける。線状弾
性部材23における一方の作動部23bは横フレーム7
bの一部に固定されると共に他方の作動部23bは取付
けフレーム13或いは取付け板17に回動操作可能に支
持された制動解除部材を構成するレバー25に接続され
たワイヤ27の端部が連結され、該レバー25の把持操
作に伴って引っ張られるワイヤ27により線状弾性部材
23の巻回部23aを回転軸19の外径以上に拡径させ
る。尚、上記説明はレバー25と線状弾性部材23の他
方端部をワイヤ27により直結したが、ワイヤ27が挿
入されたワイヤハーネス29の端部をレバー25及び線
状弾性部材23の他方端部の各近傍にて固定し、レバー
25の把持操作によりワイヤ27のみを引っ張り作動さ
せてもよい。次に、被昇降体15の昇降作用について説
明する。図6は制動解除状態を示す部分斜視図である。
図7は制動解除状態を示す縦断面図である。レバー25
の非把持時においては、図4及び図5に示すように縮径
方向へ弾性変形した線状弾性部材23の巻回部23aが
回転軸19の外周面に圧接して該回転軸19を回転不能
にさせる。これにより各ラックギャ6における所定位置
にて回転軸19に設けられた各ピニオンギャ21の噛み
合った状態に保たれることにより被昇降体15を所定の
高さに保持させる。次に、使用者の身長等に応じて被昇
降体15の高さを調節するには、図6及び図7に示すよ
うにレバー25を把持操作して線状弾性部材23を、そ
の巻回部23aが回転軸19の外径より大径になる拡径
方向へ弾性変形させて圧接を解除することにより回転軸
19の回転を可能化させる。そしてレバー25を把持し
たまま、被昇降体15を所望の高さへ持ち上げたり、押
し下げると、一方のラックギャ6に噛み合うピニオンギ
ャ21により回転軸19が回転して他方のピニオンギャ
21を同期回転させ、固定フレーム3に対して可動フレ
ーム7を傾きのないほぼ水平状態で上方又は下方へ移動
させる。これにより固定フレーム3に対して可動フレー
ム7が傾くことによる昇降抵抗を少なくして上方又は下
方への移動を円滑化することかできる。又、被昇降体1
5の昇降時には被昇降体15の重量がバランサ11によ
り受承されているため、該被昇降体15をほぼ無負荷状
態で昇降させることができる。そして被昇降体15を所
望の高さへ昇降させた後にレバー25の把持を解除する
と、線状弾性部材23の巻回部23aがその弾性力によ
り縮径して回転軸19に圧接して回転軸19の回転を規
制し、被昇降体15を所望の高さに停止保持させる。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view schematically showing the application of a lifting device to a washstand. FIG. 2 is a perspective view showing the lifting mechanism. FIG. 3 is a schematic side view of the lifting mechanism. FIG. 4 is a partial perspective view of the rotation restricting mechanism. FIG. 5 is a vertical cross-sectional view showing a rotation restricted state. The fixed frame 3 of the elevating device 1 is fixed to, for example, a wall surface of a space where a wash basin or a cooking tape is arranged, and at least a pair of left and right vertical frames 3a and a pair of upper and lower frames that connect the vertical frames 3a to each other at a required interval. And the horizontal frame 3b. Each vertical frame 3
“a” is formed in a U-shaped cross section in which the respective relative surfaces are cut out. A rotating body 5 such as a sprocket and a pulley is rotatably supported at an intermediate portion of the upper horizontal frame 3b. Further, rack gears 6 are attached to lower side surfaces of the respective vertical frames 3a. The lower part of the movable frame 7 is supported below the vertical frame 3a of the fixed frame 3 so as to be movable in the vertical direction. The movable frame 7 is formed of a vertical frame 7a supported by the vertical frame 3a of the fixed frame 3, and a horizontal frame 7b interconnecting the vertical frames 7a at an intermediate portion and an upper portion. One end of a wire 9 such as a chain or a timing belt supported by the rotating body 5 is fixed to the center of the intermediate horizontal frame 7b, and the other end of the wire 9 includes an elevating part including an object 15 to be described later. A balancer 11 having a weight substantially equal to that of the balancer 11 is attached. still,
As the balancer 11, an unsupported suspended state on the back side of the fixed frame 3 or a guide rod (not shown) attached to the fixed frame 3 is inserted into a hole (not shown) provided in the balancer 11. The movement may be guided in the vertical direction. For example, a flat C-shaped mounting frame 13 is fixed to the vertical frame 7a or the horizontal frame 7b located at the intermediate portion so as to protrude to the front side, and the mounting frame 13 is provided with an elevating body 15 such as a washstand or a cooking table. Is attached. The elevating body 15 is not limited to the above-described members, but may be any member that requires height adjustment according to the user. At both ends of the vertical frame 7a or the horizontal frame 7b located at the intermediate portion, mounting plates 17 are provided so as to protrude to the front side, and both ends of the rotating shaft 19 are rotatably supported on each mounting plate 17. . Pinion gears 21 that mesh with the rack gears 6 facing each other are attached to both ends of the rotating shaft 19, and rotate the rotating shaft 19 as the movable frame 7 moves up and down with respect to the fixed frame 3. A linear elastic member 23 such as a wire spring is press-fitted into a part of the rotating shaft 19. The linear elastic member 23 has a winding portion 23a wound with a predetermined number of turns and an operating portion 23b extending tangentially at each end of the winding portion 23a. The inner diameter is set slightly smaller than the outer diameter of the rotating shaft 19 in the inelastic deformation state. And the linear elastic member 2
3 presses the operating portion 23b to turn the winding portion 23a on the rotating shaft 19;
After being inserted into the rotating shaft 19 while being elastically deformed so as to expand beyond the outer diameter of the rotating shaft 19, the pressing is released and the diameter is reduced, so that the rotating shaft 19 is pressed against and attached to the outer peripheral surface. One operating portion 23b of the linear elastic member 23 is
b is connected to an end of a wire 27 connected to a lever 25 which constitutes a brake release member rotatably supported by the mounting frame 13 or the mounting plate 17 and is connected to the other operating portion 23b. Then, the winding portion 23 a of the linear elastic member 23 is expanded to a diameter equal to or larger than the outer diameter of the rotating shaft 19 by the wire 27 pulled by the gripping operation of the lever 25. In the above description, the lever 25 and the other end of the linear elastic member 23 are directly connected by the wire 27. However, the end of the wire harness 29 into which the wire 27 is inserted is connected to the other end of the lever 25 and the linear elastic member 23. , And only the wire 27 may be pulled by the gripping operation of the lever 25. Next, the elevating operation of the elevating body 15 will be described. FIG. 6 is a partial perspective view showing the brake release state.
FIG. 7 is a longitudinal sectional view showing the brake release state. Lever 25
In the non-holding state, the winding portion 23a of the linear elastic member 23 elastically deformed in the diameter-reducing direction presses against the outer peripheral surface of the rotating shaft 19 as shown in FIGS. Make it impossible. As a result, the pinned gears 21 provided on the rotating shaft 19 are kept engaged with each other at a predetermined position in each rack gear 6, thereby holding the lifted body 15 at a predetermined height. Next, in order to adjust the height of the elevating body 15 according to the height of the user, the linear elastic member 23 is wound by operating the lever 25 as shown in FIGS. The rotation of the rotary shaft 19 is enabled by releasing the pressure contact by elastically deforming the portion 23 a in the radially expanding direction in which the outer diameter of the rotary shaft 19 is larger than the outer diameter of the rotary shaft 19. When the lifted body 15 is lifted or pushed down to a desired height while holding the lever 25, the rotation shaft 19 is rotated by the pinion gear 21 meshing with one rack gear 6, and the other pinion gear 21 is synchronously rotated and fixed. The movable frame 7 is moved upward or downward relative to the frame 3 in a substantially horizontal state without inclination. Thus, the upward and downward movement due to the movable frame 7 being inclined with respect to the fixed frame 3 can be reduced, and the upward or downward movement can be facilitated. The object 1
Since the weight of the elevating body 15 is received by the balancer 11 when the elevating member 5 moves up and down, the elevating body 15 can be moved up and down almost without load. When the gripping of the lever 25 is released after the elevating body 15 is raised and lowered to a desired height, the winding portion 23a of the linear elastic member 23 is reduced in diameter by its elastic force and pressed against the rotating shaft 19 to rotate. The rotation of the shaft 19 is regulated, and the object 15 is stopped and held at a desired height.

【発明の効果】このため本発明は、被昇降体を円滑、か
つ迅速に昇降させることができる。又、本発明は、少な
い部品点数で被昇降体を所望の高さに停止保持すること
ができると共に製作コストを低減することができる。
According to the present invention, the object to be raised and lowered can be smoothly and quickly raised and lowered. Further, according to the present invention, the object to be lifted can be stopped and held at a desired height with a small number of parts, and the manufacturing cost can be reduced.

【図面の簡単な説明】[Brief description of the drawings]

【図1】昇降装置を洗面台に適用した概略を示す斜視図
である。
FIG. 1 is a perspective view schematically showing an application of a lifting device to a sink.

【図2】昇降機構を示す斜視図である。FIG. 2 is a perspective view showing a lifting mechanism.

【図3】昇降機構の略体側面図である。FIG. 3 is a schematic side view of a lifting mechanism.

【図4】回転規制機構の部分斜視図である。FIG. 4 is a partial perspective view of a rotation regulating mechanism.

【図5】回転規制状態を示す縦断面図である。FIG. 5 is a longitudinal sectional view showing a rotation restricted state.

【図6】制動解除状態を示す部分斜視図である。FIG. 6 is a partial perspective view showing a brake release state.

【図7】制動解除状態を示す縦断面図である。FIG. 7 is a longitudinal sectional view showing a brake release state.

【符号の説明】[Explanation of symbols]

1−昇降装置、3−固定フレーム、5−回転体、6−ラ
ックギャ、7−可動フレーム、9−ワイヤ、11−バラ
ンサ、13−取付けフレーム、15−被昇降体、9−回
転軸、21−ピニオンギャ、23−線状弾性部材、23
a−巻回部、23b−作動部、25−制動解除部材とし
てのレバー
1-elevator, 3-fixed frame, 5-rotor, 6-rack gear, 7-movable frame, 9-wire, 11-balancer, 13-mounting frame, 15-elevated body, 9-rotary shaft, 21- Pinion gear, 23-linear elastic member, 23
a-winding section, 23b-operating section, 25-lever as brake release member

【手続補正書】[Procedure amendment]

【提出日】平成10年10月13日(1998.10.
13)
[Submission date] October 13, 1998 (1998.10.
13)

【手続補正1】[Procedure amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】発明の詳細な説明[Correction target item name] Detailed description of the invention

【補正方法】変更[Correction method] Change

【補正内容】[Correction contents]

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】この発明は、例えば洗面台や
調理テーブル等の被昇降体を使用者に応じた高さに調整
する昇降装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevating device for adjusting an elevating body such as a wash basin or a cooking table to a height suitable for a user.

【0002】[0002]

【発明が解決しようとする課題】本出願人は、特願平1
0−131707号において、被固定物に取付けられ、
少なくとも上下フレームを有した固定フレームに対し、
所望の高さ幅で上下方向へ移動可能に支持された可動フ
レームと、可動フレームに前方へ突出して設けられた取
付けフレームに固定される被昇降体と、常には固定フレ
ームに対して可動フレームを所望の高さ位置に保持可能
な保持手段と、固定フレームに回転可能に支持される回
転体と、一端が可動フレームに固定されて回転体に支持
される連結部材と、回転体に支持された連結部材の他端
に取付けられ、少なくとも被昇降体とほぼ等しい重量か
らなるバランス部材とからなる昇降装置を提案した。
The present applicant has filed Japanese Patent Application No. Hei.
No. 0-131707, attached to an object to be fixed,
For a fixed frame having at least upper and lower frames,
A movable frame supported at a desired height and width so as to be movable in the vertical direction, an elevating body fixed to a mounting frame protruding forward from the movable frame, and a movable frame always fixed to the fixed frame. Holding means capable of holding at a desired height position, a rotating body rotatably supported by the fixed frame, a connecting member having one end fixed to the movable frame and supported by the rotating body, and a connecting member supported by the rotating body. There has been proposed an elevating device comprising a balance member attached to the other end of the connecting member and having a weight substantially equal to at least the elevating body.

【0003】そして上記昇降装置の保持手段は、固定フ
レームに設けられるラックギャと、可動フレームに軸支
された回転軸の一方軸端に設けられたラックギャに噛合
うピニオンギャ及び回転軸の他方軸端に設けられる制動
ドラムと、常には弾性部材の弾性力により制動ドラムに
圧接して回転軸を停止保持する制動シューとから構成し
ている。
The holding means of the elevating device includes a rack gear provided on the fixed frame, a pinion gear meshing with a rack gear provided on one shaft end of a rotating shaft supported by the movable frame, and a second shaft end of the rotating shaft. The brake drum includes a brake drum provided and a brake shoe that constantly presses against the brake drum by the elastic force of the elastic member to stop and hold the rotating shaft.

【0004】しかしながら、上記した昇降装置は、固定
フレームに設けられた少なくとも一対の支持部に可動フ
レームの下部を支持して被昇降体を昇降させる構造であ
るため、固定フレームに対して可動フレームが傾いた状
態で被昇降体を昇降操作する際には傾きによる抵抗が大
きくなって被昇降体を円滑に昇降させることができなか
った。
However, since the above-described lifting device has a structure in which the lower portion of the movable frame is supported by at least a pair of support portions provided on the fixed frame to lift the object to be lifted, the movable frame is moved relative to the fixed frame. When the object to be lifted is moved up and down in a tilted state, the resistance due to the inclination increases, and the object to be lifted cannot be moved up and down smoothly.

【0005】又、保持手段自体、上記した多数の部品で
構成されるため、組み付け作業に手間がかかって製作コ
ストが高コスト化する問題を有している。
[0005] Further, since the holding means itself is composed of a large number of parts as described above, there is a problem that the assembling work is troublesome and the production cost is increased.

【0006】本発明は、上記した従来の欠点を解決する
ために発明されたものであり、その課題とする処は、被
昇降体を円滑、かつ迅速に昇降させることができる昇降
装置を提供することにある。
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional drawbacks, and an object of the present invention is to provide an elevating device which can elevate and lower an object to be lifted smoothly and quickly. It is in.

【0007】又、本発明の他の課題は、少ない部品点数
で被昇降体を所望の高さに停止保持することができると
共に製作コストを低減することができる昇降装置を提供
することにある。
Another object of the present invention is to provide an elevating apparatus which can stop and hold an elevating body at a desired height with a small number of parts and reduce the manufacturing cost.

【0008】[0008]

【問題点を解決するための手段】このため本発明は、少
なくとも左右一対の縦フレームを有した固定フレーム
に、被昇降体が取り付けられた可動フレームを上下方向
へ移動可能に支持すると共に固定フレームに設けられた
回転体に支持され、一端が可動フレームに固定されたワ
イヤ部材の他端に被昇降体とほぼ等しい重量のバランサ
を取り付け、被昇降体をほぼ無負荷状態で昇降可能にし
た昇降装置において、固定フレームの各縦フレームに設
けられるラックギャと、可動フレームに回転可能に支持
される回転軸の各端部にそれぞれのラックギャに噛み合
って固定される歯車と、回転軸より小径状に巻回されて
一方端部が可動フレームに固定された状態で回転軸に挿
嵌されて回転軸を回り止めする線状弾性部材と、線状弾
性部材の他方端部に取り付けられ、線状弾性部材を拡径
方向へ弾性変形させて回転軸の回転を可能化する制動解
除部材とを備えたことを特徴としている。
SUMMARY OF THE INVENTION Accordingly, the present invention provides a fixed frame having at least a pair of right and left vertical frames, which supports a movable frame to which an object to be lifted is attached in a vertically movable manner, and a fixed frame. A balancer having a weight substantially equal to that of the object to be lifted and mounted is attached to the other end of the wire member, one end of which is fixed to the movable frame, supported by the rotating body provided at In the apparatus, a rack gear provided on each vertical frame of the fixed frame, a gear meshed with each rack gear at each end of a rotating shaft rotatably supported by the movable frame, and a gear smaller in diameter than the rotating shaft. A linear elastic member which is inserted into the rotating shaft in a state where it is turned and one end is fixed to the movable frame to prevent the rotating shaft from rotating, and the other end of the linear elastic member Ri attached, is characterized in that a brake release member which allows the rotation of the rotary shaft is elastically deformed linear elastic members to the expanded diameter direction.

【0009】[0009]

【発明の実施の形態】以下、本発明の実施形態を図に従
って説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

【0010】図1は昇降装置を洗面台に適用した概略を
示す斜視図である。
FIG. 1 is a perspective view schematically showing an application of a lifting device to a washstand.

【0011】図2は昇降機構を示す斜視図である。FIG. 2 is a perspective view showing the lifting mechanism.

【0012】図3は昇降機構の略体側面図である。FIG. 3 is a schematic side view of the lifting mechanism.

【0013】図4は回転規制機構の部分斜視図である。FIG. 4 is a partial perspective view of the rotation restricting mechanism.

【0014】図5は回転規制状態を示す縦断面図であ
る。
FIG. 5 is a longitudinal sectional view showing a rotation-restricted state.

【0015】昇降装置1の固定フレーム3は、例えば洗
面台や調理テープ等が配置されるスペースの壁面に固定
され、少なくとも左右一対の縦フレーム3a及び縦フレ
ーム3a相互を所要の間隔をおいて連結する上下一対の
横フレーム3bとから形成される。各縦フレーム3aは
相互の相対面が夫々切欠かれた横断面コ字形に形成され
ている。又、上部の横フレーム3b中間部にはスプロケ
ット、プーリ等の回転体5が回転可能に支持されてい
る。更に、各縦フレーム3aの下部側面にはラックギャ
6が夫々取付けられている。
The fixed frame 3 of the elevating device 1 is fixed to, for example, a wall surface of a space where a wash basin, a cooking tape and the like are arranged, and connects at least a pair of left and right vertical frames 3a and the vertical frames 3a to each other at a required interval. And a pair of upper and lower horizontal frames 3b. Each of the vertical frames 3a is formed in a U-shaped cross section in which the respective relative surfaces are cut out. A rotating body 5 such as a sprocket and a pulley is rotatably supported at an intermediate portion of the upper horizontal frame 3b. Further, rack gears 6 are attached to lower side surfaces of the respective vertical frames 3a.

【0016】固定フレーム3の縦フレーム3a下部には
可動フレーム7の下部が上下方向へ移動可能に支持され
ている。該可動フレーム7は固定フレーム3の縦フレー
ム3aに支持される縦フレーム7a及び中間部と上部に
て縦フレーム7a相互を連結する横フレーム7bとから
形成される。そして中間部の横フレーム7b中央部には
回転体5に支持されたチェーン、タイミングベルト等の
ワイヤ9の一端が固定され、該ワイヤ9の他端には後述
する被昇降体15を含む昇降部分とほぼ等しい重量のバ
ランサ11が取付けられている。
The lower part of the movable frame 7 is supported below the vertical frame 3a of the fixed frame 3 so as to be vertically movable. The movable frame 7 is formed of a vertical frame 7a supported by the vertical frame 3a of the fixed frame 3, and a horizontal frame 7b interconnecting the vertical frames 7a at an intermediate portion and an upper portion. One end of a wire 9 such as a chain or a timing belt supported by the rotating body 5 is fixed to the center of the intermediate horizontal frame 7b, and the other end of the wire 9 includes an elevating part including an object 15 to be described later. A balancer 11 having a weight substantially equal to that of the balancer 11 is attached.

【0017】尚、バランサ11としては固定フレーム3
の背面側にて非支持の宙吊り状態或いは固定フレーム3
に取付けられたガイドロッド(図示せず)をバランサ1
1に設けられた孔(図示せず)内に挿通して上下方向へ
移動案内されるようにしてもよい。
Note that the fixed frame 3 is used as the balancer 11.
Unsupported suspended or fixed frame 3 on the back side of
Guide rod (not shown) attached to the balancer 1
1 may be inserted into a hole (not shown) provided in the apparatus 1 and guided to move vertically.

【0018】中間部に位置する縦フレーム7a又は横フ
レーム7bには、例えば平面C字形の取付けフレーム1
3が正面側へ突出するように固定され、取付けフレーム
13には洗面台や調理テーブル等の被昇降体15が取付
けられる。被昇降体15としては上記した部材に限定さ
れるものではなく、使用者に応じて高さ調節を必要とす
る部材であればよい。
The vertical frame 7a or the horizontal frame 7b located at the intermediate portion has, for example, a flat C-shaped mounting frame 1.
3 is fixed so as to protrude to the front side, and an ascending / descending body 15 such as a wash basin or a cooking table is attached to the attachment frame 13. The elevating body 15 is not limited to the above-described members, but may be any member that requires height adjustment according to the user.

【0019】中間部に位置する縦フレーム7a或いは横
フレーム7b両端部には取付け板17が正面側へ突出す
るように設けられ、各取付け板17には回転軸19の両
端部が回転可能に軸支される。そして回転軸19の両端
部には相対するラックギャ6に夫々噛合うピニオンギャ
21が取付けられ、固定フレーム3に対する可動フレー
ム7の上下移動に伴って回転軸19を回転させる。
At both ends of the vertical frame 7a or the horizontal frame 7b located at the intermediate portion, mounting plates 17 are provided so as to protrude toward the front side. Supported. Pinion gears 21 that mesh with the rack gears 6 facing each other are attached to both ends of the rotating shaft 19, and rotate the rotating shaft 19 as the movable frame 7 moves up and down with respect to the fixed frame 3.

【0020】回転軸19の一部には線ばね等の線状弾性
部材23が圧入されている。該線状弾性部材23は所定
の巻数で巻回される巻回部23aと該巻回部23aの各
端部にて接線方向へ延出する作動部23bとを有し、巻
回部23aの内径は非弾性変形状態において回転軸19
の外径より若干小径に設定される。そして該線状弾性部
材23は作動部23bを押圧して巻回部23aを回転軸
19の外径以上に拡径するように弾性変形させた状態で
回転軸19に挿入した後に押圧を解除して縮径させるこ
とにより回転軸19の外周面に圧接させて取付ける。
A linear elastic member 23 such as a wire spring is press-fitted into a part of the rotary shaft 19. The linear elastic member 23 has a winding portion 23a wound with a predetermined number of turns and an operating portion 23b extending tangentially at each end of the winding portion 23a. The inner diameter of the rotating shaft 19 in the inelastic deformation state
The diameter is set slightly smaller than the outer diameter of. The linear elastic member 23 presses the operating portion 23b and inserts it into the rotating shaft 19 in a state where the winding portion 23a is elastically deformed so as to expand beyond the outer diameter of the rotating shaft 19, and then releases the pressing. The diameter of the rotary shaft 19 is reduced so that the rotary shaft 19 is pressed against and attached to the outer peripheral surface.

【0021】線状弾性部材23における一方の作動部2
3bは横フレーム7bの一部に固定されると共に他方の
作動部23bは取付けフレーム13或いは取付け板17
に回動操作可能に支持された制動解除部材を構成するレ
バー25に接続されたワイヤ27の端部が連結され、該
レバー25の把持操作に伴って引っ張られるワイヤ27
により線状弾性部材23の巻回部23aを回転軸19の
外径以上に拡径させる。
One operating part 2 of the linear elastic member 23
3b is fixed to a part of the horizontal frame 7b, and the other operating part 23b is attached to the mounting frame 13 or the mounting plate 17.
The end of a wire 27 connected to a lever 25 that constitutes a brake release member rotatably supported by the wire 25 is connected, and the wire 27 that is pulled with the gripping operation of the lever 25
As a result, the winding portion 23a of the linear elastic member 23 is expanded to have an outer diameter larger than the outer diameter of the rotating shaft 19.

【0022】尚、上記説明はレバー25と線状弾性部材
23の他方端部をワイヤ27により直結したが、ワイヤ
27が挿入されたワイヤハーネス29の端部をレバー2
5及び線状弾性部材23の他方端部の各近傍にて固定
し、レバー25の把持操作によりワイヤ27のみを引っ
張り作動させてもよい。
In the above description, the lever 25 and the other end of the linear elastic member 23 are directly connected by the wire 27, but the end of the wire harness 29 into which the wire 27 is inserted is connected to the lever 2
5 and the other end of the linear elastic member 23 may be fixed near each other, and only the wire 27 may be pulled by the gripping operation of the lever 25.

【0023】次に、被昇降体15の昇降作用について説
明する。
Next, the elevating operation of the elevating body 15 will be described.

【0024】図6は制動解除状態を示す部分斜視図であ
る。
FIG. 6 is a partial perspective view showing the brake release state.

【0025】図7は制動解除状態を示す縦断面図であ
る。
FIG. 7 is a longitudinal sectional view showing a brake released state.

【0026】レバー25の非把持時においては、図4及
び図5に示すように縮径方向へ弾性変形した線状弾性部
材23の巻回部23aが回転軸19の外周面に圧接して
該回転軸19を回転不能にさせる。これにより各ラック
ギャ6における所定位置にて回転軸19に設けられた各
ピニオンギャ21の噛み合った状態に保たれることによ
り被昇降体15を所定の高さに保持させる。
When the lever 25 is not gripped, as shown in FIGS. 4 and 5, the winding portion 23a of the linear elastic member 23, which has been elastically deformed in the diameter decreasing direction, comes into pressure contact with the outer peripheral surface of the rotating shaft 19 and is pressed. The rotation shaft 19 is made unrotatable. As a result, the pinned gears 21 provided on the rotating shaft 19 are kept engaged with each other at a predetermined position in each rack gear 6, thereby holding the lifted body 15 at a predetermined height.

【0027】次に、使用者の身長等に応じて被昇降体1
5の高さを調節するには、図6及び図7に示すようにレ
バー25を把持操作して線状弾性部材23を、その巻回
部23aが回転軸19の外径より大径になる拡径方向へ
弾性変形させて圧接を解除することにより回転軸19の
回転を可能化させる。
Next, the object 1 to be lifted and lowered according to the height and the like of the user.
In order to adjust the height of 5, as shown in FIGS. 6 and 7, the linear elastic member 23 is gripped by operating the lever 25 so that the winding portion 23 a has a larger diameter than the outer diameter of the rotating shaft 19. The rotation of the rotating shaft 19 is made possible by elastically deforming in the diameter increasing direction and releasing the pressure contact.

【0028】そしてレバー25を把持したまま、被昇降
体15を所望の高さへ持ち上げたり、押し下げると、一
方のラックギャ6に噛み合うピニオンギャ21により回
転軸19が回転して他方のピニオンギャ21を同期回転
させ、固定フレーム3に対して可動フレーム7を傾きの
ないほぼ水平状態で上方又は下方へ移動させる。これに
より固定フレーム3に対して可動フレーム7が傾くこと
による昇降抵抗を少なくして上方又は下方への移動を円
滑化することかできる。
When the lifted body 15 is lifted or pushed down to a desired height while holding the lever 25, the rotation shaft 19 is rotated by the pinion gear 21 meshing with one rack gear 6, and the other pinion gear 21 is rotated synchronously. Then, the movable frame 7 is moved upward or downward in a substantially horizontal state with no inclination with respect to the fixed frame 3. Thus, the upward and downward movement due to the movable frame 7 being inclined with respect to the fixed frame 3 can be reduced, and the upward or downward movement can be facilitated.

【0029】又、被昇降体15の昇降時には被昇降体1
5の重量がバランサ11により受承されているため、該
被昇降体15をほぼ無負荷状態で昇降させることができ
る。
When the object 15 is moved up and down, the object 1 is moved up and down.
Since the weight of 5 is received by the balancer 11, the object 15 can be moved up and down almost without load.

【0030】そして被昇降体15を所望の高さへ昇降さ
せた後にレバー25の把持を解除すると、線状弾性部材
23の巻回部23aがその弾性力により縮径して回転軸
19に圧接して回転軸19の回転を規制し、被昇降体1
5を所望の高さに停止保持させる。
When the gripping of the lever 25 is released after the object 15 has been raised and lowered to a desired height, the winding portion 23a of the linear elastic member 23 is reduced in diameter by its elastic force and pressed against the rotating shaft 19. To restrict the rotation of the rotating shaft 19,
5 is stopped and held at the desired height.

【0031】[0031]

【発明の効果】このため本発明は、被昇降体を円滑、か
つ迅速に昇降させることができる。又、本発明は、少な
い部品点数で被昇降体を所望の高さに停止保持すること
ができると共に製作コストを低減することができる。
According to the present invention, the object to be raised and lowered can be smoothly and quickly raised and lowered. Further, according to the present invention, the object to be lifted can be stopped and held at a desired height with a small number of parts, and the manufacturing cost can be reduced.

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】少なくとも左右一対の縦フレームを有した
固定フレームに、被昇降体が取り付けられた可動フレー
ムを上下方向へ移動可能に支持すると共に固定フレーム
に設けられた回転体に支持され、一端が可動フレームに
固定されたワイヤ部材の他端に被昇降体とほぼ等しい重
量のバランサを取り付け、被昇降体をほぼ無負荷状態で
昇降可能にした昇降装置において、固定フレームの各縦
フレームに設けられるラックギャと、可動フレームに回
転可能に支持される回転軸の各端部にそれぞれのラック
ギャに噛み合って固定される歯車と、回転軸より小径状
に巻回されて一方端部が可動フレームに固定された状態
で回転軸に挿嵌されて回転軸を回り止めする線状弾性部
材と、線状弾性部材の他方端部に取り付けられ、線状弾
性部材を拡径方向へ弾性変形させて回転軸の回転を可能
化する制動解除部材とを備えた昇降装置。
A movable frame having a vertically movable body mounted thereon is supported on a fixed frame having at least a pair of left and right vertical frames so as to be movable in the vertical direction, and is supported by a rotating body provided on the fixed frame. Is attached to each vertical frame of the fixed frame in a lifting device in which a balancer having a weight substantially equal to the lifted body is attached to the other end of the wire member fixed to the movable frame so that the liftable body can be lifted and lowered under almost no load. Rack gear, a gear meshed with each rack gear at each end of a rotating shaft rotatably supported by the movable frame and fixed, and one end fixed to the movable frame wound around a smaller diameter than the rotating shaft. A linear elastic member that is inserted into the rotary shaft in a state where the linear elastic member is detented, and is attached to the other end of the linear elastic member, and the linear elastic member is expanded in the radially expanding direction. Lifting device and a brake release member which allows the rotation of the rotary shaft is elastically deformed.
【請求項2】請求項1の制動解除部材は、可動フレーム
に回動可能に支持されるレバーと、該レバーと線状弾性
部材の他方端部とを連結するワイヤとからなる昇降装
置。
2. The lifting device according to claim 1, wherein the braking release member comprises a lever rotatably supported by the movable frame, and a wire connecting the lever to the other end of the linear elastic member.
JP10290190A 1998-10-13 1998-10-13 Lifting/lowering device Pending JP2000118967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10290190A JP2000118967A (en) 1998-10-13 1998-10-13 Lifting/lowering device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10290190A JP2000118967A (en) 1998-10-13 1998-10-13 Lifting/lowering device

Publications (1)

Publication Number Publication Date
JP2000118967A true JP2000118967A (en) 2000-04-25

Family

ID=17752924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10290190A Pending JP2000118967A (en) 1998-10-13 1998-10-13 Lifting/lowering device

Country Status (1)

Country Link
JP (1) JP2000118967A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100420140B1 (en) * 2001-05-18 2004-03-03 주식회사 관보테크 Apparatus for adjusting height of washstand
KR101559936B1 (en) 2015-07-22 2015-10-14 오준석 Lifting apparatus for white board
WO2019080250A1 (en) * 2017-10-24 2019-05-02 叶永华 Height adjustable writing board
CN114129012A (en) * 2021-11-06 2022-03-04 徐州智奇机械科技有限公司 Exhibition display device based on VR technique

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100420140B1 (en) * 2001-05-18 2004-03-03 주식회사 관보테크 Apparatus for adjusting height of washstand
KR101559936B1 (en) 2015-07-22 2015-10-14 오준석 Lifting apparatus for white board
WO2017014537A1 (en) * 2015-07-22 2017-01-26 오준석 Whiteboard lifting device
WO2019080250A1 (en) * 2017-10-24 2019-05-02 叶永华 Height adjustable writing board
CN114129012A (en) * 2021-11-06 2022-03-04 徐州智奇机械科技有限公司 Exhibition display device based on VR technique
CN114129012B (en) * 2021-11-06 2022-11-18 徐州智奇机械科技有限公司 Exhibition display device based on VR technique

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