JPS6190423U

JPS6190423U -

Info

Publication number: JPS6190423U
Application number: JP17506584U
Authority: JP
Priority date: 1984-11-20
Filing date: 1984-11-20
Publication date: 1986-06-12
Also published as: JPH0334106Y2

Description

[Brief explanation of the drawing]

第１図は、本考案の第１実施例における専用台
の、副天板を高位置とした時の要部縦断側面図、
第２図は、第１図Ａ−Ａ線における断面図、、第
３図は、同じく副天板を低位置とした時の要部縦
断面図、第４図は、本考案の第２実施例の専用台
の正面図、第５図は、本考案の第１実施例の専用
台の正面図、第６図は、本考案の第２実施例の専
用台の正面図である。１…脚、２…主天板、３…副天板、４…基枠、
５…上方揺動腕、５ａ…側片、６…ピン、７…下
方揺動腕、７ａ…側片、８…ピン、９…昇降腕、
１０，１１…ピン、１２…連結杆、１３…軸受、
１４…挿通孔、１５…調節杆、１６…螺孔、１７
…操作杆、１７ａ…丸棒部、１７ｂ…ねじ部、１
８…窓孔、１９…つまみ、５１…軸受杆、５２…
挿通孔、５３…連結杆、５４…螺孔。 FIG. 1 is a vertical sectional side view of the main part of the dedicated stand in the first embodiment of the present invention, with the secondary top plate set at a high position;
Figure 2 is a sectional view taken along the line A-A in Figure 1, Figure 3 is a vertical sectional view of the main part when the sub-top plate is in a low position, and Figure 4 is a second embodiment of the present invention. FIG. 5 is a front view of the dedicated stand according to the first embodiment of the present invention, and FIG. 6 is a front view of the dedicated stand according to the second embodiment of the present invention. 1...Legs, 2...Main top plate, 3...Sub-top plate, 4...Base frame,
5... Upper swinging arm, 5a... Side piece, 6... Pin, 7... Lower swinging arm, 7a... Side piece, 8... Pin, 9... Lifting arm,
10, 11... Pin, 12... Connecting rod, 13... Bearing,
14...Insertion hole, 15...Adjustment rod, 16...Threaded hole, 17
...Operating rod, 17a...Round bar part, 17b...Threaded part, 1
8...Window hole, 19...Knob, 51...Bearing rod, 52...
Insertion hole, 53...Connecting rod, 54...Threaded hole.

Claims

[Scope of Claim for Utility Model Registration] (1) A part of the base frame hanging down on both left and right sides of the lower surface of the main top plate is used as an almost vertical fixing rod, and the base end is pivotally attached to the upper and lower parts of the base frame. A pair of left and right parallel four-rod links is formed by pivoting upwardly extending vertical arms to the free ends of both upper and lower swinging arms of equal length that face forward and are parallel to each other. A connecting rod is provided between the links, and an operating rod with a variable effective length is provided between the upper and lower swinging arms to limit their downward swinging, and a horizontal sub-top plate is placed at the upper end of both lifting arms. A height adjustment device for the secondary top plate. (2) The device according to claim (1) of the utility model registration claim, wherein an operating lever is provided between the front part of the upper swinging arm and the rear part of the lower swinging arm to restrict the proximity of the two. (3) The device according to claim (1) of the utility model registration claim, wherein an operating lever is provided between the rear part of the upper swinging arm and the front part of the lower swinging arm to restrict the proximity of the two.