JPH0249988U

JPH0249988U -

Info

Publication number: JPH0249988U
Application number: JP12741888U
Authority: JP
Priority date: 1988-09-30
Filing date: 1988-09-30
Publication date: 1990-04-06

Description

[Brief explanation of the drawing]

第１図はアームの折りたたみ状態を示す側面図
、第２図は本実施例の正面断面図、第３図は従来
例の側面図である。１……上下動装置、２……固定盤、３……ねじ
軸、４……ガイド、５……リフト部、６……モー
タ、７……上下動装置、８……第１アーム、９…
…第２アーム、１０……リフト部、１１……シヤ
フト、１２……タイミングプーリー、１３……シ
ヤフト、１４……関節部材、１５，１６……タイ
ミングプーリー、１７……タイミングベルト、１
８……ハウジング、１９……タイミングプーリー
、２０……シヤフト、２１……カツプリング、２
２……モータ、２３，２４……タイミングプーリ
ー、２５，２６……タイミングベルト、２７……
ブラケツト、２９，３０……軸受、３１……ケー
シング。 FIG. 1 is a side view showing the arm in a folded state, FIG. 2 is a front sectional view of this embodiment, and FIG. 3 is a side view of the conventional example. DESCRIPTION OF SYMBOLS 1... Vertical movement device, 2... Fixed plate, 3... Screw shaft, 4... Guide, 5... Lift part, 6... Motor, 7... Vertical movement device, 8... First arm, 9 …
... Second arm, 10 ... Lift part, 11 ... Shaft, 12 ... Timing pulley, 13 ... Shaft, 14 ... Joint member, 15, 16 ... Timing pulley, 17 ... Timing belt, 1
8... Housing, 19... Timing pulley, 20... Shaft, 21... Coupling, 2
2... Motor, 23, 24... Timing pulley, 25, 26... Timing belt, 27...
Bracket, 29, 30...Bearing, 31...Casing.

Claims

[Claims for Utility Model Registration] A proximal arm rotated by a drive motor;
It has a distal arm rotatably connected to the distal end of the proximal arm, and a lift section provided at the distal end of the distal arm, and as the drive motor rotates, the proximal arm and distal arm Bend it in a dogleg shape,
In the vertical movement device that moves the lift part up and down, the proximal end of a hollow proximal arm is fixed to the tip of the output shaft of the drive motor, and the casing of the drive motor has a base end inside the proximal arm. The first and second gears are fixed in a sealed manner, a support shaft is rotatably installed inside the distal end of the proximal arm via a bearing, and the first gear is attached to the proximal end of the support shaft. A third gear having a gear ratio different from the gear ratio is fixed, and a base end of a hollow distal end arm is fixed to the distal end of the support shaft, and a bearing is attached to the outer periphery of the support shaft. A sleeve is rotatably supported, and the second
A fourth and a fifth gear having a gear ratio equal to that of the gear are fixed, and the first and fifth gears are interlocked with each other, and the first gear and the third gear are interlocked with each other, and the second gear and the fourth gear are interlocked with each other. A second driving force transmission means is provided, a lift support shaft is rotatably and sealed inside the distal end of the distal arm via a bearing, and the lift support shaft has a gear ratio equal to that of the fifth gear. A vertical movement device having the above-mentioned structural features, in which the No. 6 gear is fixed, and a third driving force transmission means is provided inside the distal end arm to connect the No. 5 gear and the No. 6 gear.