JPS6026683Y2 - Pole for supporting legs of blackboards - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pedestal for supporting legs that supports a blackboard or bulletin board.

This type of support leg consists of a column that supports blackboards, and a leg rod fixed to the lower end of the column in a T-shape perpendicular to the column. Many structures are used in which the spaces are connected by connecting rods.

There are T-shape and L-shape for fixing the pedestal to the support, but the T-shape is better for vertically supporting and stabilizing the support.

The L-shape is easy to fold, but is less stable.

By the way, in many of the above-mentioned T-shaped support legs, the column and the leg rod are fixed by welding, etc., and when such products are transported and stored, the packaging volume becomes large, resulting in the need for packaging materials, transportation costs, and storage space. This is the cause of the increase.

There are also models that have a T-shaped pedestal that allows the support and pedestal to be separated, but these tend to be disliked by users because they require many parts to be attached during assembly and are time-consuming.

The present invention maintains the advantages (stable support) of the conventional T-shaped support pedestal and eliminates its disadvantages, and the blackboard can be assembled quickly and easily without the need for separate assembly parts. The purpose of this invention is to provide a pedestal for supporting legs of the same type.

In order to achieve the above-mentioned object, the present invention fixes a pedestal inside the lower end of the column, forms a space for inserting an engaging tool between the pedestal and the inner wall of the column, and has a fishhook-like structure in the leg rod. The engaging tool is fixed, and when the engaging part is inserted into the space, the retaining tool is engaged by a stop pin fixed to the pedestal, and the leg rod is unfolded and rotated in a T-shape with respect to the column. It can be freely rotated to extend and rotate parallel to the column, and the column and leg rod can be stretched parallel to each other and packed, making it easy to fold into a T-shape when in use. It is designed to be able to be assembled by unfolding and fixing.

Next, one embodiment of the present invention will be described with reference to FIGS. 1 to 5 in sequence.

Fig. 1 is an overall perspective view of a blackboard support leg to which the present invention is applied, Fig. 2 is a partially cutaway front view showing the main parts of the leg of the present invention, and Fig. 3 is a cross section of E' in Fig. 2. 4 are explanatory views showing the relationship between the strut and the leg rod, and FIG. 5 is a detailed view of the main part of FIG. 4.

In FIGS. 1 to 5, reference numeral 1 denotes a support column that supports a blackboard 7 from both sides, and is made of a square steel tube. A leg rod 2 having casters 8 on both sides at its lower end is fixed at right angles to the support column 1 ( (Figs. 1 to 3).

Reference numeral 3 depicted in FIG. 1 is a connecting rod that connects the left and right columns 1 and the columns 1.

The support column 1 is a steel pipe with a rectangular cross section, and a hole 1a (FIG. 3, FIG. 5) through which a stop pin A passes through the lower side surface 1-1 of the support column 1 is a steel pipe.
A pedestal 4 is fixed to the inside of the side surface 1-2 opposite to the hole 1a by welding or the like.

The pedestal 4 has a screw hole 4a that engages with the threaded portion of the stop pin A at a location opposite to the hole 1a drilled in the support, and a fastener B is provided on the lower end of the support 1. A screw hole 4b that engages with the threaded portion is formed, and a space 1-3 into which a retainer 5, which will be described later, can be inserted is formed between the pedestal 4 and the inner surface of the support column 1 (FIG. 3).

The leg rod 2 is formed in a groove shape with a certain length, and the base 5 of the retainer 5 is fixed to the center portion 2-1 of the upper surface by a method such as welding.

Further, a reinforcing material 6 is fixed to the inner surface of the leg rod 2 at a portion facing the pedestal 4 by a method such as welding, and a through hole 2 is provided at a position facing the reinforcing material 6 and the screw hole 4b of the leg rod 2.
Drill b.

The retainer 5 has a thickness that allows it to fit into the space 1-3 formed by the inner surface of the column 1 and the pedestal 4, and engages with the retaining pin A when pulled out to a certain length. The leg rod 2, which has the shape of a fishhook that can be slid and rotated while rotating, and the leg rod 2 to which the base of the engaging tool 5 is fixed, can be deployed and rotated in a T-shape at right angles to the support as shown by the chain line in FIG. 4, or as shown by the solid line. It is secured to the lower end of the column 1 via a stop pin A so that it can extend and rotate parallel to the column.

In this case, the fishhook-shaped opening 5-1 of the engagement tool 5 is connected to the leg rod 2.
When unfolding and rotating in a T-shape or extending and rotating parallel to the column, the engaging tool 5 does not interfere with the lower end 1-4 of the column.
Also, the dimensions are such that it will not come off the retaining pin A and fall off.
Shape.

A is a retaining pin that engages the column 1 and the leg rod 2 as described above, and after inserting the engaging tool 5 into the space 1-3, the screw portion of the retaining pin is screwed into the screw hole 4a through the hole 1a. Install it.

B is a tightening tool for fastening and fixing the leg rod 2 to the column 1 by deploying and rotating the leg rod 2 to form a T-shape with respect to the column 1;
-1 is a spring washer.

As mentioned above, the supporting leg pillar of the present invention has a pillar 1 and a leg rod 2.
It can be freely unfolded into a T-shape and extended parallel to the pillar, so when transporting or storing it, it can be extended into a rod shape as shown by the solid line in Figure 4, and when in use it can be extended into a rod shape. is developed into a T-shape as shown by the chain line in Fig. 4, and the screw hole 4 is opened.
By fastening the fastener B to b, a strong T-shaped pillar can be formed very easily.

As mentioned above, the pedestal for supporting legs of blackboards according to the present invention significantly reduces the packaging volume during transportation or storage, and when in use, it is extremely easy and convenient to tighten just one fastener. It has an excellent practical effect in that it can be firmly assembled into a T-shape and stably support blackboards.

[Brief explanation of the drawing]

Figure 1 is an overall perspective view of a blackboard support leg to which the present invention is applied, Figure 2 is a partially cutaway front view showing the main parts of the present invention, Figure 3 is a cross-sectional view of Figure 2, and Figure 4. 5 is an explanatory diagram showing the relationship between the strut and the leg rod, and FIG. 5 is a detailed diagram showing the main part of FIG. 4. 1... Strut, 2... Leg rod, 3...
... Connecting rod, 4 ... Pedestal, 5 ... Engagement tool, 6 ... Reinforcement material, 7 ... Blackboard, 8 ...
... Caster, A ... Fixing pin, B.
...Tightening tool.

Claims (1)

[Scope of utility model registration request] In a column for supporting legs of blackboards having a leg rod fixed in a T-shape at the lower end of the column, a pedestal is fixed inside the lower end of the column, and a fishhook-shaped structure is formed between the pedestal and one inner wall of the column. A space into which the engaging tool can be inserted is formed, and the base of the engaging tool is fixed near the center of the leg rod, and when the engaging tool is inserted into the space, the engaging tool is inserted into the space. The leg rod is configured to be engaged with a stop pin fixed to the pedestal so that the leg rod can be rotated in a T-shape relative to the support, or extended and rotated parallel to the support. A pedestal for supporting legs of blackboards, characterized in that the leg pedestal is fastened and fixed to the pedestal with a fastener in a state where it is unfolded in a T-shape.