JPH0240823Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a device for attaching a member to be attached, such as a base or a drawing board support frame holder, to a column for a pillar of an elevating drafting table or the like.

[Conventional technology]

Conventionally, the fixed column of an elevating drafting table is generally fixed to a base by welding or screwing.

[Problem that the invention attempts to solve]

Therefore, when fixing the fixing column to the base using the above method, the work is not easy.

The object of the present invention is to eliminate the above-mentioned defects by making it possible to attach a member to a column with a single touch.

[Means to solve problems]

In order to achieve the above object, the present invention provides a plurality of protrusions 22 having enlarged diameter portions 22a at the end of the column 20, and also includes: A fitting recess 4 is provided, and the protrusion 22 is provided on the horizontal wall 8a forming the fitting recess 4.
At the same time, a rotary plate 12 is rotatably attached to the horizontal wall 8a, and an insertion hole 14 is provided in the rotary plate 12 at a position corresponding to the protrusion 22. A long hole 16 extending in a predetermined rotational direction of the rotary plate 12 is provided in communication with the insertion hole 14, and the insertion hole 14 is formed to have a larger diameter than the protrusion enlarged diameter portion 22a. The width of the elongated hole 16 is set to a size suitable for slidably fitting the shaft portion of the protrusion 22, and an arm 2 is provided on the rotary plate 12 for rotating the protrusion 22.
8 are connected to each other, and pressure-receiving surfaces 18 are formed on both sides of the elongated hole 16 of the horizontal wall 8a, and the pressure-receiving surfaces 18 become higher in a predetermined rotation direction of the rotary plate 12.

[Effect]

In the above configuration, when the end of the column 20 is fitted into the fitting recess 4 of the attached member 2, the protrusion 22
is loosely fitted into the insertion hole 14 of the rotating plate 12. Next, the arm 28 is swung in a predetermined direction to rotate the rotating plate 12 in a predetermined direction. As the rotating plate 12 rotates, the protrusion 22 fits into the elongated hole 16 of the rotating plate 12, and the lower surface of the enlarged diameter portion 22a of the protrusion comes into pressure contact with the pressure receiving surface 18, and the mounted member 2 is attached to the end of the column 20. Fixed. This fixation can be released by swinging the arm 28 in the opposite direction.

〔Example〕

The configuration of the present invention will be described below with reference to embodiments shown in the accompanying drawings.

In FIG. 1, reference numeral 2 denotes an attached member consisting of a base of an elevating drafting table, and a box-shaped fitting recess 4 is opened in the upper surface of this member. Holes 10 are transparently provided at the four corners of the horizontal portion 8a of the container wall 8 forming the fitting recess 4. A central portion of a rotating plate 12 is rotatably supported in the center of the horizontal portion 8a by bolts and nuts. The rotary plate 12 is provided with insertion holes 14 at positions in four directions, and elongated holes 16 adjacent to the insertion holes 14 and extending in a predetermined rotational direction of the rotary plate 12. On both sides of the elongated hole 16, pressure receiving surfaces 18 are formed which become higher toward a predetermined rotational direction of the rotary plate 12. The insertion hole 14
The diameter is set to be slightly larger than the diameter of the enlarged diameter portions 22a of the projections 22 protruding from the bottom of the column 20 in four directions. The width of the elongated hole 16 is narrower than the diameter of the enlarged diameter portion 22, and is set to a size suitable for fitting the shaft portion of the protrusion 22. A spacer 24 is fixed to the tongue piece 12a of the rotary plate 12, and an arm 28 is connected to the arm holder 26 to which the spacer 24 is fixed, with some play. On the vertical wall of the attached member 2,
A guide 30 consisting of an L-shaped hole is formed, and the guide 30 includes a right-angled portion 30a that locks the arm 28 in a predetermined position and a horizontal portion 30b that guides the arm 28 in a predetermined rotation direction. . the arm 28 is inserted into the guide 30;
A tip portion of the guide 30 projects to the outside of the attached member 2 . The rotating plate 12 is urged in a predetermined direction by the tensile force of a coil spring 32.

Next, the operation of this embodiment will be explained. first,
The arm 28 is raised using the elasticity of the tongue piece 12a of the rotary plate 12 and the play between it and the holder 26, and the arm 28 is positioned at the right angle part 30a of the guide 30. Next, the column 20 is brought above the mounted member 2, the protrusion 22 is aligned with the hole 10 of the container wall 8, and the lower part of the column 20 is inserted into the fitting recess 4.
Fits in. In this state, the positional relationship between the projections 22 and the insertion holes 14 is set so that the four projections 22 fit loosely into the corresponding insertion holes 14 of the rotating plate 12. Next, the arm 28 is removed from the right angle portion 30a of the guide 30, and the arm 28 is moved along the horizontal portion 30b of the guide 30 to rotate the rotary plate 12 in a predetermined direction. As the rotary plate 12 rotates, the protrusion 22 moves into the elongated hole 16 of the rotary plate 12, and the lower surface of the enlarged diameter portion 22a of the protrusion 22 comes into pressure contact with the pressure receiving surface 18, and the protrusion 22 is pulled downward and the column 20
is fixed to the horizontal portion 8a of the wall of the attached member 2 via the rotary plate 12. In this state, even if you release your hand from the arm 28, the arm 28 will continue to press against the horizontal portion 3 of the guide 30 due to the tensile force of the spring 32 and the pressing force between the protrusion enlarged diameter portion 22a and the pressure receiving surface 18.
It is held at the pushing end of 0b. Note that by swinging the arm 28 in the opposite direction to return the rotating plate 12 to its initial position, the column 20 can be released from being fixed to the attached member 2. The above embodiment is for the case where the lower end of the fixed column is fixed to the attached member consisting of the base of an elevating drafting table, but the present invention is based on the fifth embodiment.
As shown in the figure, it can also be used as a device for fixing an attached member 2, which is a holder that supports a drawing board frame 32, to the upper end of a lifting column 20' that can be moved up and down on a fixed column. The holder, that is, the member to be attached 2 has
A fitting recess 4 is formed, and the fitting recess 4 is configured to fit into the upper part of the lifting column 20'. There is a protrusion 22 on the upper square of the lifting column 20'.
is installed protrudingly. Since the other configurations are the same as those of the first embodiment, corresponding configurations are given the same numbers and their explanations will be omitted.

〔effect〕

Since the present invention is configured as described above, the column and the attached member can be fixed with one touch by simply swinging the arm, making it extremely easy to connect the column and the attached member. There are effects that can be achieved.

[Brief explanation of the drawing]

1 is an exploded perspective view, FIG. 2 is a sectional view, FIG. 3 is a perspective view, FIG. 4 is a perspective view, and FIG. 5 is a sectional view showing another embodiment. 2... Attached member, 4... Fitting recess, 8... Capacity wall, 8a... Horizontal part, 10... Hole, 12... Rotating plate, 14... Insertion hole, 16... Long hole, 18 ...Pressure receiving surface, 20...Column, 22...Protrusion, 22a...
... Expanded diameter part, 24 ... Spacer, 26 ... Arm holder, 28 ... Arm, 30 ... Guide, 3
2...Drawing board frame.

Claims (1)

[Scope of utility model registration request] A plurality of protrusions 22 each having an enlarged diameter portion 22a are protruded from the end of the column 20, and a fitting recess 4 for fitting the end of the column 20 is provided on the mounted member 2. Horizontal wall 8a forming matching recess 4
A space is provided to guide the protrusion 22 to the outside of the fitting recess 4, and a rotating plate 12 is provided on the horizontal wall 8a.
is rotatably attached, and an insertion hole 14 is provided at a position of the rotary plate 12 corresponding to the protrusion 22, and an elongated hole 16 extending in a predetermined rotational direction of the rotary plate 12 is provided in communication with the insertion hole 14. , the insertion hole 14
is formed to have a larger diameter than the protrusion enlarged diameter portion 22a,
The width of the elongated hole 16 is determined by the width of the elongated hole 16.
An arm 28 is connected to the rotary plate 12 to rotate the rotary plate 12, and an arm 28 is connected to the rotary plate 12 on both sides of the elongated hole 16 of the horizontal wall 8a. The column mounting device is characterized in that a pressure receiving surface 18 is formed which becomes higher toward a predetermined direction of rotation of the rotary plate 12.