JPH0247865Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a blackboard that can be installed at any desired location, occupies little space, and can be installed at any height.

[Conventional technology]

BACKGROUND ART Movable blackboards that can be installed in freely selected positions have been known in the past, but in these blackboards, the lower ends of the support legs are formed to have a required depth in order to stably support the blackboard body. Therefore, installing the blackboard occupies a deep space, and furthermore, passersby may trip over the protrusion of the support arm and be injured. Furthermore, it is generally difficult to adjust the height of such a movable blackboard.

[Problem that the invention attempts to solve]

This eliminates the drawbacks such as the installation taking up a large space, the danger of tripping over people passing by, and the difficulty in adjusting the installation height.

[Means for solving problems]

A pair of left and right columns with their lower ends grounded to the floor and their tops standing upright against the ceiling, etc. each has a lower half body made of pipe material with an oval inner diameter, and an oval outer diameter that can fit into the lower half body. The blackboard main body is formed by an upper half body whose position is fixed by rotation, and a support arm is provided on each of the pillars so that the height position thereof can be freely adjusted to support the blackboard main body.

[Effect]

Stand the pair of right and left columns to which the blackboard body is attached via the support arms upright in the desired location, pull out and extend the upper half from the lower half, and then separate the upper half and lower half at the position where the top touches the ceiling, etc. The raised position of the upper body is fixed by twisting and rotating the body in opposite directions.
If necessary, adjust the position of the support arm up or down to fix the blackboard body at a desired height.

〔Example〕

In the figure, reference numerals 1 and 1 indicate a pair of left and right support columns, each of which is formed separately into a lower half body 1a and an upper half body 1b which is slidably fitted into the lower half body 1a. The lower half 1a is formed of an inner diameter or oval pipe material,
A mounting plate 2 is fixed to the lower end. Also, upper body 1
b is formed of a pipe material with an oval outer diameter that fits into the lower half body 1a, and has an extendable adjuster 3 at the top.
is screwed on.

Reference numerals 4 and 4 denote support arms that are slidably attached to the lower half body 1a and the upper half body 1b, respectively, and are composed of a half-cylindrical attachment portion 5 and a horizontal support plate 6. is inserted into the upper half body 1b or the lower half body 1a, and can be fixed at a desired position by screwing the protruding pieces 7, 7 provided oppositely along the split on the opposite side to the support plate 6 with screws. are doing. The support plate 6 has elongated holes 9, 9 formed therein.

10 is a blackboard main body, and an insertion hole 12 is formed on the outside of a side frame 11. An opening groove 13 is formed in the outer surface of the insertion hole 12 in the longitudinal direction. 1
Reference numeral 4 denotes a clamping tool for fixing the support plate 6 in close contact with the outer surface of the insertion hole 12;
A knob 17 is provided at the upper end of the shaft portion 15 via a contact plate 16, and a locking piece 18 having an elongated shape that can be freely inserted into the elongated hole 9 of the support plate 6 is provided at the lower end of the shaft portion 15, with the longitudinal direction facing the knob 17. It is integrally formed so as to be perpendicular to the .

Then, the support plate 6 of the support arm 4 attached to the supports 1, 1 is brought into close contact with the outer surface of the insertion hole 12 at both upper and lower ends of the side frame 11 of the blackboard main body 10, and the elongated hole 9 provided in the support plate 6 is brought into close contact with the outer surface of the insertion hole 12. from the insertion hole 12 through the opening groove 13
Insert the locking piece 18 of the locking tool 14 inside and press it while rotating the knob 17. As shown in FIG. At this time, the upper surface of the locking piece 18 comes into pressure contact with the outer lower surface of the insertion hole 12, so that the support plate 6 can be closely fixed to the outer upper surface of the insertion hole 12.

In this state, the upper half 1b of each of the columns 1, 1 is housed in the lower half 1a as shown in FIG. 1, thereby making handling such as storage and transportation easier.

Next, to explain the use of the blackboard of the present invention formed in this way, the posts 1, 1 supporting the blackboard main body 10 are stood upright at the place where the blackboard is to be installed, and the ground plate 2 of each lower half 1a is ground on the floor F, loosen the screws 8, 8 that fixed each support arm 4, pull out the upper half 1b until the top reaches the ceiling c, and place the lower half 1a and upper half 1b together. By twisting and rotating in the opposite direction, the long diameter part of the upper half body 1b bites into the short diameter part of the lower half body 1a and is tightly fitted, as shown in Fig. 4, fixing the upper half body 1b in the extended position. do.
In this fixed state, if there is a gap between the upper half body 1b and the ceiling c, the adjuster 3 is rotated and extended until it comes into pressure contact with the ceiling c, and the columns 1, 1 are firmly fixed.

Then, tighten the once loosened screws 8, 8 of each support arm 4, but before tightening, the height position of the blackboard main body 10 can be freely adjusted up and down, and furthermore, even after once fixed, these screws 8 can be loosened. can be easily changed. Also, if you want to change the position of the blackboard once installed, you can use the upper half 1b and lower half 1
The upper half body 1b can be easily moved by releasing the biting fitting of the upper half body 1b and loosening the pressure contact with the ceiling or the like.

Furthermore, the blackboard of the present invention has the versatility of being able to be used as a bulletin board or a partition by replacing the blackboard body with a panel.

[Effect of idea]

As mentioned above, the blackboard of the present invention is supported by upright columns via support arms on both the left and right sides of the blackboard body, and the upper and lower ends of these columns are made so that the floor surface hits the ceiling, etc. Because it can be fixed, it does not require a particular depth at the installation location, and it can be installed at any desired location because it occupies less space. Also, since there is no protrusion around the suspension, there is no danger of tripping over passersby, making it safe.

Moreover, the height position of the blackboard body can be freely set by raising and lowering the support arms attached to the pillars, and furthermore, there is an advantage that the entire installation location of the blackboard can be easily moved and changed.

[Brief explanation of the drawing]

The figures relate to usage examples of the present invention, and Fig. 1 is a perspective view, Fig. 2 is a perspective view of the supporting arm, Fig. 3 is a front view of the used state, Fig. 4 is a cross-sectional view of the same pillar, and Fig. 5 is a perspective view of the support arm. The figure is a partially enlarged perspective view of the same as the above, and FIG. 6 is a partially sectional view of the same. 1, 1... Support, 1a... Lower half body, 1b... Upper half body, 3, 3... Adjuster, 4, 4... Support arm, 10... Blackboard body.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A pair of left and right columns whose lower ends are grounded on the floor and whose tops stand upright against the ceiling, etc., each consisting of a lower half made of pipe material with an elliptical inner diameter, and an outer diameter with an oval inner diameter. It is formed of an elliptical upper half that can fit into the lower half and whose position is fixed by rotation, and support arms are provided on each of the pillars so that the height position can be adjusted to support the blackboard main body. A blackboard designed to 2. The blackboard according to claim 1 of the utility model registration claim, characterized in that an extendable adjuster is provided at the top of each support.