JPH07237894A - Motor-driven table lifter - Google Patents
Motor-driven table lifterInfo
- Publication number
- JPH07237894A JPH07237894A JP5255194A JP5255194A JPH07237894A JP H07237894 A JPH07237894 A JP H07237894A JP 5255194 A JP5255194 A JP 5255194A JP 5255194 A JP5255194 A JP 5255194A JP H07237894 A JPH07237894 A JP H07237894A
- Authority
- JP
- Japan
- Prior art keywords
- fixed base
- link
- nut
- screw shaft
- small
- 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.)
- Granted
Links
Landscapes
- Transmission Devices (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、固定基台と昇降台との
間にＸ状の交叉リンクを設け、この交叉リンクの開閉作
動により昇降台を上下作動する電動テーブルリフタに関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric table lifter in which an X-shaped cross link is provided between a fixed base and a lift table, and the lift table is vertically moved by opening and closing the cross link.
【０００２】[0002]
【従来の技術】固定基台と昇降台との間にＸ状の交叉リ
ンクを設け、この交叉リンクの対向内面に一対の膨出弧
状ガイドを設け、このガイド面の夫々に接して回転する
クサビローラを介在させ、電動式直線作動機構に該クサ
ビローラを接続させた電動テーブルリフタは公知である
（実開平２−４０７９３号公報参照）。更に、エアー圧
を利用したものや油圧方式のものも公知である。2. Description of the Related Art An X-shaped cross link is provided between a fixed base and an elevator, a pair of bulging arc-shaped guides are provided on the inner surfaces of the cross link facing each other, and wedge rollers that rotate in contact with the respective guide surfaces. An electric table lifter in which the wedge linear roller is connected to an electric linear actuating mechanism is known (see Japanese Utility Model Laid-Open No. 2-40793). Further, those using air pressure and those using a hydraulic system are also known.
【０００３】[0003]
【発明が解決しようとする課題】上記公知の電動式テー
ブルリフタでは、Ｘ状交叉リンクの対向内面の一対の膨
出弧状ガイド間に回転ローラーを介在させ、この回転ロ
ーラーの一対の交叉リンクに対する拡開作用によって、
交叉リンクの開閉作動を行なう結果、電動モータにその
出力トルクの大きいものが必要とされ、またコストアッ
プとなっていたし、更にエアー圧や油圧方式のものでは
圧力調整自体が複雑で嵩張る等の問題点があった。In the above-mentioned known electric table lifter, a rotary roller is interposed between a pair of bulging arc-shaped guides on the inner surface of the X-shaped cross link facing each other, and the rotary roller is expanded with respect to the pair of cross links. By the opening action,
As a result of the opening and closing operation of the cross link, a large output torque of the electric motor is required and the cost is increased, and the pressure adjustment itself is complicated and bulky with the air pressure or hydraulic type. There was a point.
【０００４】一方、例えばローラーコンベヤ等におい
て、そのコンベヤ終端あるいは中間位置で、そのコンベ
ヤと交差するコンベヤを設け、この交差位置で搬送物の
搬送方向を変えるために、搬送物を僅かに上昇させるリ
フタが必要となるが、このようなリフタはせいぜい１５
０〜３００ｍｍ程度の上下ストロークがあれば足りるも
のである。On the other hand, for example, in a roller conveyor or the like, a lifter is provided at the end or intermediate position of the conveyor so as to intersect the conveyor, and the lifter slightly raises the conveyed product to change the conveying direction of the conveyed product at the intersecting position. However, such a lifter is at most 15
A vertical stroke of about 0 to 300 mm is sufficient.
【０００５】そこで、本発明は、叙上のような従来存し
た諸事情に鑑み創出されたもので、重量性の荷重が掛る
昇降台に対し、小さなモータトルクを有する駆動機構で
あっても昇降台の昇降作動を可能とさせ、また、昇降台
の大きくない上下ストロークに適し、コストダウンを図
ることのできる新規な電動テーブルリフタを提供するこ
とを目的とする。Therefore, the present invention has been made in view of the existing circumstances as described above, and even if a drive mechanism having a small motor torque is moved up and down with respect to an elevator table under a heavy load. It is an object of the present invention to provide a novel electric table lifter that enables the platform to move up and down, is suitable for a vertical stroke of the platform that is not large, and can reduce the cost.
【０００６】[0006]
【課題を解決するための手段】上述した目的を達成する
ため、本発明にあっては、一対のＸ状交叉リンクの中央
交叉部を枢着し、Ｘ状交叉リンクの一端を固定基台と昇
降台に夫々枢着し、反対側自由端に転動ローラを設けて
固定基台と昇降台に接触し、電動モータ、減速機及び連
結部を有する駆動軸から成る駆動機構の上記連結部にス
クリュー軸を固定基台及び昇降台と平行に連結し、該ス
クリュー軸にナットを螺合し、このナットと前記転動ロ
ーラの枢軸間に小リンク部材を介在させたことを特徴と
する。また、上記小リンク部材を交叉して交叉小リンク
を形成して構成することができる。In order to achieve the above-mentioned object, in the present invention, a central crossing portion of a pair of X-shaped cross links is pivotally attached, and one end of the X-shaped cross link serves as a fixed base. Each of them is pivotally attached to the lifting table, and a rolling roller is provided at the opposite free end to contact the fixed base and the lifting table. The screw shaft is connected in parallel to the fixed base and the lifting base, a nut is screwed onto the screw shaft, and a small link member is interposed between the nut and the pivot of the rolling roller. Further, the small link member may be crossed to form a crossed small link.
【０００７】[0007]
【作用】本発明の電動テーブルリフタでは、駆動機構の
駆動モータを正逆回転することにより、スクリュー軸が
正逆回転し、このスクリュー軸に螺合するナットを進退
作動する。このナットの進退作動に伴ってナットとＸ状
交叉リンクの転動ローラ枢軸間に介在させた小リンク部
材、又は交叉小リンクが開閉作動して昇降台を固定基台
上で上昇作動し且つ下降作動する。In the electric table lifter according to the present invention, the screw shaft is rotated in the forward and reverse directions by rotating the drive motor of the drive mechanism in the forward and reverse directions, and the nut screwed with the screw shaft is moved forward and backward. As the nut moves forward and backward, a small link member interposed between the nut and the rolling roller pivot of the X-shaped cross link or the cross small link opens and closes to raise and lower the lift base on a fixed base. Operate.
【０００８】[0008]
【実施例】以下、図面を参照して本発明の一実施例を説
明する。図１乃至図４に本発明電動テーブルリフタの実
施例が示してあり、図中１が固定基台、２が昇降台、３
がＸ状交叉リンクで、一対のリンク部材４，４の中央部
を枢軸５で開閉回動可能に連結してある。このＸ状交叉
リンク３は図３の平面図で示すように前後に対として配
設してある。これらＸ状交叉リンク３の各リンク部材４
の一端を固定基台１及び昇降台２に枢着６，７してあ
る。一方これらＸ状交叉リンク３の各リンク部材４の反
対側自由端には転動ローラ８，９を設けて、固定基台１
及び昇降台２の内面に接触させて転動するようにしてあ
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 4 show an electric table lifter according to an embodiment of the present invention, in which 1 is a fixed base, 2 is a lift, and 3 is a lift base.
Is an X-shaped cross link, and the central portions of the pair of link members 4 and 4 are connected by a pivot 5 so as to be openable and closable. The X-shaped cross links 3 are arranged in front and rear as a pair as shown in the plan view of FIG. Each link member 4 of these X-shaped cross links 3
One end of each of them is pivotally attached to the fixed base 1 and the lifting table 2. On the other hand, rolling rollers 8 and 9 are provided at the opposite free ends of the respective link members 4 of these X-shaped cross links 3 to fix the fixed base 1
Also, the inner surface of the lifting table 2 is brought into contact with the lifting table 2 to roll.
【０００９】図中１０が駆動機構で、この駆動機構は、
電動モータ１１と減速機構１２と連結部１４を有する駆
動軸１３とこの連結部１４をカバーするカバーケース１
５とから成り、このカバーケース１５の両側面に於いて
前記枢軸５を固着してある。そして１７が上記駆動機構
１０の駆動軸１３の連結部１４に連結したスクリュー軸
で、このスクリュー軸１７にブロック１９を一体的に設
けたナット１８を螺合させてある。In the figure, 10 is a drive mechanism, which is
A drive shaft 13 having an electric motor 11, a reduction mechanism 12 and a connecting portion 14, and a cover case 1 for covering the connecting portion 14.
5, and the pivot 5 is fixed to both side surfaces of the cover case 15. A screw shaft 17 is connected to the connecting portion 14 of the drive shaft 13 of the drive mechanism 10, and a nut 18 integrally provided with a block 19 is screwed onto the screw shaft 17.
【００１０】さらに、図中２０が小リンク部材２１，２
１を交叉して構成した交叉小リンクで、この交叉小リン
ク２０は夫々の端部を上記ナット１８のブロック１９と
Ｘ状交叉リンク４，４の転動ローラ８，９の枢軸２５に
枢着２２，２３し、このナット１８とＸ状交叉リンク３
間であって、スクリュー軸１７上の前記転動ローラ８の
枢軸２５とＸ状交叉リンク３の中央交叉部とのストロー
ク間にリンク部材２１を介在させてある。そして、この
Ｘ状交叉リンク３と交叉小リンク２０によって固定基台
１及び昇降台２間に駆動機構１０及びスクリュー軸１７
を水平状に配置してある。図２に昇降台２が下降してい
る状態を示してある。尚、前記交叉小リンク２０の換わ
りに非交叉状に小リンク部材２１を取付けても良いこと
は勿論である。Further, in the figure, 20 is a small link member 21,2.
1 is a crossover small link, and each end of the crossover small link 20 is pivotally attached to the block 19 of the nut 18 and the pivot 25 of the rolling rollers 8 and 9 of the X-shaped crosslinks 4 and 4. 22 and 23, and the nut 18 and the X-shaped cross link 3
A link member 21 is interposed between strokes of the pivot shaft 25 of the rolling roller 8 on the screw shaft 17 and the central intersection of the X-shaped cross link 3. The X-shaped cross link 3 and the small cross link 20 allow the drive mechanism 10 and the screw shaft 17 to be interposed between the fixed base 1 and the lift 2.
Are arranged horizontally. FIG. 2 shows a state in which the lift 2 is lowered. Needless to say, the small link member 21 may be attached in a non-intersecting form instead of the small cross link 20.
【００１１】上記した構成により昇降台２が下降してい
る状態で駆動機構１０の電動モータ１１を正転作動すれ
ば、スクリュー軸１７が正回転してナット１８を駆動機
構１０に近寄るように移動する。このとき、前記スクリ
ュー軸１７上の前記転動ローラ８の枢軸２５とＸ状交叉
リンク３の中央交叉部とのストローク間に介在させた小
リンク部材２１は、内側方向へ閉作動してＸ状交叉リン
ク３を閉作動し、昇降台２を図１の状態から図２の状態
にまで下降する。同様にして電動モータ１１を逆回転す
ると、このナット１８が駆動機構１０から遠ざかる方向
に移動し、この反転移動によって交叉小リンク２０が拡
開して、Ｘ状交叉リンク３を拡開し昇降台２を上昇す
る。このような構成により、小型の電動モーター１１に
より小さなモータートルクであっても重量荷物を積載し
た昇降台２の上昇動作を容易にすることができ、電動モ
ーター１１全体としての縦横の幅員を短くすることがで
き、さらに省エネにもつながる。When the electric motor 11 of the drive mechanism 10 is rotated in the normal direction while the elevator base 2 is descending, the screw shaft 17 rotates in the normal direction to move the nut 18 closer to the drive mechanism 10. To do. At this time, the small link member 21 interposed between the strokes of the pivot shaft 25 of the rolling roller 8 on the screw shaft 17 and the central intersection of the X-shaped cross link 3 closes inward and moves in the X shape. The cross link 3 is closed, and the lift table 2 is lowered from the state of FIG. 1 to the state of FIG. Similarly, when the electric motor 11 is rotated in the reverse direction, the nut 18 moves in a direction away from the drive mechanism 10, and the reversing movement causes the small cross link 20 to widen and the X-shaped cross link 3 to widen to move up and down. Increase by 2. With such a configuration, the small electric motor 11 can facilitate the raising operation of the lifting platform 2 loaded with heavy loads even with a small motor torque, and shorten the vertical and horizontal width of the electric motor 11 as a whole. It is also possible to save energy.
【００１２】上記実施例では、上記小リンク部材２１を
転動ローラ８，９の枢軸２５に枢着する構成としたが、
他の実施例として小リンク部材の枢着側先端部を二又状
に切欠形成し、この切欠凹部内に枢軸２５を介入させる
構成としてもよい。In the above embodiment, the small link member 21 is pivotally attached to the pivot shafts 25 of the rolling rollers 8 and 9.
As another embodiment, the tip end of the small link member on the pivot side may be formed into a bifurcated notch, and the pivot 25 may be inserted into the notched recess.
【００１３】[0013]
【発明の効果】以上説明したように本発明によれば、一
対のＸ状交叉リンクの中央交叉部を枢着し、Ｘ状交叉リ
ンクの一端を固定基台と昇降台に夫々枢着し、反対側自
由端に転動ローラを設けて固定基台と昇降台に接触し、
電動モータ、減速機及び連結部を有する駆動軸から成る
駆動機構の上記連結部にスクリュー軸を固定基台及び昇
降台と平行に連結し、該スクリュー軸にナットを螺合
し、このナットと前記転動ローラの枢軸間に小リンク部
材を介在させたので、小さなモータトルクの駆動機構で
も作動でき、上下ストロークの小さいテーブルリフタに
適するものとなし得たと共に、省エネで且つコストダウ
ンを図ることができる。。As described above, according to the present invention, the central crossing portions of the pair of X-shaped cross links are pivotally attached, and one ends of the X-shaped cross links are pivotally attached to the fixed base and the elevator, respectively. Provide a rolling roller at the free end on the opposite side to contact the fixed base and the lifting platform,
The screw shaft is connected in parallel to the fixed base and the lifting table to the connecting portion of the drive mechanism including the electric motor, the speed reducer and the drive shaft having the connecting portion, and the nut is screwed to the screw shaft, Since a small link member is interposed between the pivots of the rolling rollers, it can be operated by a drive mechanism with a small motor torque, and it can be made suitable for a table lifter with a small vertical stroke, and energy saving and cost reduction can be achieved. it can. .
【図１】本発明の実施例の上昇状態を示した正面図であ
る。FIG. 1 is a front view showing an elevated state of an embodiment of the present invention.
【図２】同じく下降状態を示した正面図である。FIG. 2 is a front view showing the same lowered state.
【図３】同じく昇降台を省略して示した一部断面平面図
である。FIG. 3 is a partial cross-sectional plan view in which an elevator is also omitted.
【図４】同じく半断面側面図である。FIG. 4 is a half sectional side view of the same.
１ 固定基台 ２ 昇降台 ３ Ｘ状交叉リンク ４ リンク部材 ５ 枢軸 ６，７ 枢着 ８，９ 転動ローラ １０ 駆動機構 １１ 電動モータ １２ 減速機 １３ 駆動軸 １４ 連結部 １５ カバーケース １６ ブロック １７ スクリュー軸 １９ ブロック ２０ 交叉小リンク ２１ 小リンク部材 ２２，２３ 枢着 ２５ 枢軸 1 Fixed Base 2 Lifting Table 3 X-Shaped Cross Link 4 Link Member 5 Axis 6,7 Pivot 8,9 Rolling Roller 10 Drive Mechanism 11 Electric Motor 12 Reducer 13 Drive Axis 14 Connection 15 Cover Case 16 Block 17 Screw Axis 19 Block 20 Crossing small link 21 Small link member 22,23 Pivot 25 Pivot
Claims (2)
着し、Ｘ状交叉リンクの一端を固定基台と昇降台に夫々
枢着し、反対側自由端に転動ローラを設けて固定基台と
昇降台に接触し、電動モータ、減速機及び連結部を有す
る駆動軸から成る駆動機構の上記連結部にスクリュー軸
を固定基台及び昇降台と平行に連結し、該スクリュー軸
にナットを螺合し、このナットと前記転動ローラの枢軸
間に小リンク部材を介在させたことを特徴とする電動テ
ーブルリフタ。1. A pair of X-shaped cross links are pivotally attached to a central crossing portion, one ends of the X-shaped cross links are pivotally attached to a fixed base and an elevator, respectively, and rolling rollers are provided at opposite free ends. The screw shaft is connected to the fixed base and the lifting base in parallel with the fixed base and the lifting base, and the screw shaft is connected to the connection part of the drive mechanism including the electric motor, the speed reducer and the drive shaft having the connection part. An electric table lifter in which a nut is screwed, and a small link member is interposed between the nut and the pivot of the rolling roller.
クを形成した請求項１記載の電動テーブルリフタ。2. The electric table lifter according to claim 1, wherein the small link members are crossed to form a crossed small link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05255194A JP3502147B2 (en) | 1994-02-28 | 1994-02-28 | Electric table lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05255194A JP3502147B2 (en) | 1994-02-28 | 1994-02-28 | Electric table lifter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07237894A true JPH07237894A (en) | 1995-09-12 |
| JP3502147B2 JP3502147B2 (en) | 2004-03-02 |
Family
ID=12917948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05255194A Expired - Fee Related JP3502147B2 (en) | 1994-02-28 | 1994-02-28 | Electric table lifter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3502147B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008214069A (en) * | 2007-03-07 | 2008-09-18 | Sumitomo Heavy Ind Ltd | Roll body conveying device |
| CN102862542A (en) * | 2012-09-28 | 2013-01-09 | 李尚贤 | Anti-kidnapping device for saloon car |
| CN103129503A (en) * | 2013-03-26 | 2013-06-05 | 李尚贤 | Pull-type anti-hijack device used for saloon car |
| CN103303243A (en) * | 2013-07-08 | 2013-09-18 | 李尚贤 | Traction type anti-kidnapping device for automobile |
| CN103991423A (en) * | 2014-06-06 | 2014-08-20 | 李尚贤 | Traction type anti-hijack device for saloon car |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4487875B2 (en) | 2005-07-20 | 2010-06-23 | セイコーエプソン株式会社 | Method for manufacturing electronic substrate, method for manufacturing electro-optical device, and method for manufacturing electronic device |
-
1994
- 1994-02-28 JP JP05255194A patent/JP3502147B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008214069A (en) * | 2007-03-07 | 2008-09-18 | Sumitomo Heavy Ind Ltd | Roll body conveying device |
| CN102862542A (en) * | 2012-09-28 | 2013-01-09 | 李尚贤 | Anti-kidnapping device for saloon car |
| CN103129503A (en) * | 2013-03-26 | 2013-06-05 | 李尚贤 | Pull-type anti-hijack device used for saloon car |
| CN103129503B (en) * | 2013-03-26 | 2015-04-15 | 李尚贤 | Pull-type anti-hijack device used for saloon car |
| CN103303243A (en) * | 2013-07-08 | 2013-09-18 | 李尚贤 | Traction type anti-kidnapping device for automobile |
| CN103991423A (en) * | 2014-06-06 | 2014-08-20 | 李尚贤 | Traction type anti-hijack device for saloon car |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3502147B2 (en) | 2004-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20030047388A1 (en) | Scissors lifter drive apparatus | |
| ATE229139T1 (en) | SCISSOR LIFT TABLE | |
| US4681206A (en) | Curvilinear escalator | |
| JP3502147B2 (en) | Electric table lifter | |
| RU95105420A (en) | Device for joining cab and shaft doors of lift | |
| DE3876241D1 (en) | INDUSTRIAL ROBOT. | |
| JP2617879B2 (en) | Low vibration electric lifter | |
| JP3018710U (en) | Trolley with lift | |
| JPH0672698A (en) | Crossing arm-type elevating device | |
| WO1993007996A1 (en) | Arm driving device of industrial robot | |
| JP3434344B2 (en) | Electric table lifter | |
| JP2614173B2 (en) | Electric table lifter | |
| CN211688086U (en) | Connecting rod lifting mechanism for robot and storage mobile robot | |
| CN110713138A (en) | Freight elevator for air transporter | |
| JP2959341B2 (en) | Lifter | |
| JP3424733B2 (en) | Lifter | |
| CN218708873U (en) | Electric scissor type lifting platform | |
| JPH092275A (en) | Motor-driven dolly with lifting function | |
| JPH01104597A (en) | Lifter | |
| CN214203645U (en) | Bridge type walkway for double-glass solar cell panel packaging conveying line | |
| JPH0565994U (en) | Work platform of aerial work platform | |
| WO2000034174A3 (en) | Scissor-type lift table | |
| JPH069193A (en) | Transmission gear of electric lifter | |
| JPS6335795U (en) | ||
| JPH036414Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20031204 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 5 Free format text: PAYMENT UNTIL: 20081212 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 6 Free format text: PAYMENT UNTIL: 20091212 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 6 Free format text: PAYMENT UNTIL: 20091212 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101212 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 8 Free format text: PAYMENT UNTIL: 20111212 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121212 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 10 Free format text: PAYMENT UNTIL: 20131212 |
|
| LAPS | Cancellation because of no payment of annual fees |