KR20120027938A

KR20120027938A - Angle regulating board

Info

Publication number: KR20120027938A
Application number: KR1020100089812A
Authority: KR
Inventors: 고병철
Original assignee: 예영시스템 주식회사
Priority date: 2010-09-14
Filing date: 2010-09-14
Publication date: 2012-03-22
Also published as: KR101243103B1

Abstract

The present invention relates to a blackboard capable of adjusting the angle. Blackboard adjustable angle according to the present invention, the frame forming the overall skeleton of the blackboard; A board plate rotatably installed on the frame and having a writing unit made of a writable material; And an angle adjusting means for adjusting a rotation angle with respect to the frame of the board.

Description

Angle regulating board {Angle regulating board}

The present invention relates to a blackboard, and more particularly, to an angle adjustable blackboard that is improved in structure to increase the user's convenience by being configured to enable the angle adjustment by a simple configuration.

In general, the blackboard has a writable writing portion disposed on a plane, as shown in FIG. 1, and is located on both sides with respect to the center A1 of the three writing portions A1, A2, and A3. In the case of writing parts A2 and A3, the edge portion is hardly seen, which causes a user inconvenience.

Therefore, in the case of writing parts A2 and A3 located at both sides, an angle adjustment is required so that the writing parts A2 and A3 are located on a different plane from the writing part A1 located at the center. It is required to design to simplify the position and smoothly fix the position in the angle adjusted state.

The present invention has been made to solve the above problems, it is an object of the present invention to provide a board capable of adjusting the angle can be adjusted by a simple configuration.

Another object of the present invention is to provide an angle-adjustable board that can provide a firm position fixing force in the state in which the angle adjustment is made.

The angle adjustable blackboard according to the present invention for achieving the above object, the frame forming the overall skeleton of the blackboard; A board plate rotatably installed on the frame and having a writing unit made of a writable material; And an angle adjusting means for adjusting a rotation angle with respect to the frame of the board.

The angle adjusting means, one end is rotatably coupled to the frame; A second link one end of which is rotatably coupled to the board plate, the other end of which is rotatably coupled to the other end of the first link, and a plurality of position fixing grooves; A third link having one end rotatably coupled to the first link, and the other end having a position fixing jaw inserted into or removed from any one of the position fixing grooves, and having a protrusion formed at a side thereof; And a moving bracket installed in the second link and having a groove portion into which the protrusion is inserted so as to be movable along the arrangement direction of the position fixing grooves of the second link. During the rotation, the projection of the third link is moved to one side of the groove portion of the moving bracket while the insertion state between the position fixing jaw of the third link and the position fixing groove of the second link is released, and the board plate In the state where the rotation of the frame is completed, the projection of the third link is moved to the other side of the groove portion of the moving bracket while the insertion between the position fixing jaw of the third link and the position fixing groove of the second link is It is desirable to make it.

The groove portion of the moving bracket may include: a first groove in which the protrusion is positioned in a state where the position fixing jaw of the third link is inserted into the position fixing groove of the second link; A second groove in which the protrusion is positioned in a state where an insertion state between the position fixing jaw of the third link and the position fixing groove of the second link is released; And the position fixing jaw is inserted into any one of the position fixing grooves while the position fixing jaw is separated from the position fixing groove located at the last of the position fixing grooves and then approached to the position fixing groove located at the extreme end. In order to prevent it from becoming, it is preferable that the projection is made of; a third groove.

Preferably, the angle adjusting means further includes a cylinder device having one end rotatably installed on the frame and the other end rotatably installed on the board plate.

Preferably, the angle adjusting means further includes a spring for elastically pressing the protrusion so that the protrusion of the third link can be pressed toward the other side of the groove of the moving bracket.

The angle-adjustable board according to the present invention having the above-described configuration has the advantage that the angle can be adjusted by the kinematic design of the simple links, and thus the convenience and angle control can be increased, for example, in a simple configuration. It is possible to fix the position of the writing part even in the state, which has the advantage of increasing the convenience of educators teaching students, for example.

1 is a schematic perspective view of a blackboard according to the prior art.
Figure 2 is a state of use of the angle adjustable blackboard according to an embodiment of the present invention.
Figure 3 is a perspective view of the angle adjusting means employed in one embodiment of the present invention.
4 to 8 are views for explaining the operation of the embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings for an angle-adjustable blackboard according to an embodiment of the present invention will be described in detail.

Figure 2 is a state of use of the angle adjustable blackboard according to an embodiment of the present invention, Figure 3 is a perspective view of the angle adjusting means employed in one embodiment of the present invention, Figures 4 to 8 is the operation of one embodiment of the present invention It is a figure for demonstrating a process.

As shown in these drawings, the angle adjustable blackboard according to the present invention comprises a frame (F), board board (B) and the angle adjusting means.

The frame (F) is a portion forming the overall skeleton of the board, the board plate (B) is rotatably installed on the frame (F), and has a writing section of a writable material.

The angle adjusting means is for adjusting the rotation angle with respect to the frame (F) of the board plate (B), in this embodiment, the first link (1), the second link (2) and the third link (3) And a moving bracket (4) were employed.

One end of the first link 1 is rotatably installed on the frame F and the other end is rotatably installed on the second link 2.

The second link 2 has a plurality of position fixing grooves 21, one end of which is rotatably installed in the board plate B, and arranged along the longitudinal direction of the second link 2.

The third link 3 has one end rotatably installed at one side of the first link 1, and the other end of the third link 3 is selectively inserted into one of the position fixing jaws 31. ) Is formed, and the protrusions 32 are formed on the side surfaces thereof.

The position fixing jaw 31, the insertion state with the position fixing groove 21 is released, the second link (2) is rotated with respect to the frame (F) with the board plate (B), the rotation In this completed state is inserted into the position fixing groove (21). The protrusion 32 is a portion inserted into the groove portion 41 of the moving bracket (4).

The movable bracket 4 is installed on the second link 2 so as to be movable along the longitudinal direction of the second link 2. The moving bracket 4 is formed with a groove portion 41 into which the protrusion 32 is inserted.

In the present exemplary embodiment, the groove part 41 includes a first groove 411, a second groove 412, and a third groove 413. As shown in FIG. 4, the first groove 411 has a position fixing jaw 31 of the third link 3 inserted into the position fixing groove 21 of the second link 2. In the state, the protrusion 32 is a portion where it is located. Meanwhile, in the state as shown in FIG. 4, the movable bracket 4 is disposed close to one end side of the second link 2.

As such, when the position fixing jaw 31 of the third link 3 is inserted into the position fixing groove 21 of the second link 2, the rotation of the board plate B with respect to the frame F is performed. This becomes an impossible state. On the other hand, in the state where the protrusion 32 is located in the first groove 411, the protrusion 32 is pressed so that the insertion state of the protrusion 32 into the first groove 411 can be maintained firmly. It is preferable that the spring 5 for this is provided.

In the state as shown in FIG. 4, when the board plate B is pulled as shown in FIG. 5, the second link 2 rotates to move the moving bracket 4 to the other end side of the second link 2. As the first link 1 and the third link 3 rotate simultaneously, the protrusion 32 of the second link 2 is positioned in the second groove 412 of the groove 41. While being inserted between the position fixing jaw 31 of the third link 3 and the position fixing groove 21 of the second link (2). In this state, the board plate B can be freely rotated with respect to the frame F. FIG.

Then, after the board plate B is rotated with respect to the frame F as shown in FIG. 5, in the state where the rotation is completed as shown in FIG. 6, the spring 5 is the projection 32 of the third link 3. ) Is pressed so that the position fixing jaw 31 of the third link 3 is inserted into any one of the position fixing grooves 21 of the second link 2.

In this embodiment, only the pressing force by the spring 5 can be expected a solid position fixing force between the position fixing jaw 31 of the third link 3 and the position fixing groove 21 of the second link (2). Since it does not exist, the cylinder device 6 is provided.

One end of the cylinder device 6 is rotatably installed on the frame F, and the other end is rotatably installed on the board plate B. When the cylinder device 6 pressurizes the board plate B toward the frame F from the outside in the state where the insertion between the position fixing jaw 31 and the position fixing groove 21 is made as shown in FIG. 6. By applying a force in the opposite direction to the pressing force, it is possible to prevent the position fixing jaw 31 from being separated from the position fixing groove 21. The reason why such a strong position fixing force is required is because a human force is applied when writing to the writing unit of the board plate (B).

On the other hand, when the angle adjustment to the frame (F) of the board plate (B) is not necessary, as shown in Figure 4 the board plate (B) should be returned to its original position.

As such, in order to return the board B to its original position, as shown in FIG. 7, the position fixing jaw 31 is rotated to the maximum with respect to the frame F. ) Is completely separated from the position fixing groove 21 located at the end of the position fixing grooves 21.

When the board plate B is pressed against the frame F in such a state, as shown in FIG. 8, the protrusion 32 of the third link 3 is formed in the third groove of the groove 41. While being inserted into the 413, the position fixing jaw 31 of the third link 3 can move without being inserted into the position fixing groove 21 of the second link 2.

As mentioned above, although preferred embodiment of this invention was described, this invention is not limited to the above-mentioned embodiment, It is defined by what is described in a claim, and it is clear that various deformation | transformation and adaptation are possible in the technical field to which this invention belongs. Do.

1: first link 2: second link
21: position fixing groove 3: third link
31: position fixing jaw 32: protrusion
4: moving bracket 41: groove
411: first groove 412: second groove
413: Third groove 5: Spring
6: Cylinder device B: Board
F: frame

Claims

A frame F forming the overall skeleton of the board;
A board plate (B) rotatably installed on the frame (F) and having a writing unit made of a writable material; And
An angle adjustable blackboard comprising an angle adjustment means for adjusting the rotation angle with respect to the frame (F) of the board plate (B).

The method of claim 1,
The angle adjusting means,
A first link (1) having one end rotatably coupled to the frame (F);
A second link 2 having one end rotatably coupled to the board plate B, the other end rotatably coupled to the other end of the first link 1, and a plurality of position fixing grooves 21 formed therein; ;
One end is rotatably coupled to the first link (1), the other end is formed with a position fixing jaw 31 is inserted into or removed from any one of the position fixing grooves 21, the projection ( A third link 3 formed with 32; And
In order to be movable along the arrangement direction of the position fixing grooves 21 of the second link 2, a groove portion 41 is formed in the second link 2 and into which the projection 32 is inserted. With a moving bracket (4),
While the board plate B is rotated with respect to the frame F, the projection 32 of the third link 3 moves to one side of the groove portion 41 of the moving bracket 4 while the third link is moved. (3) to release the insertion state between the position fixing jaw 31 and any one position fixing groove 21 of the second link (2),
In the state where the rotation of the frame (F) of the board plate (B) is completed, the projection 32 of the third link (3) is moved to the other side of the groove portion 41 of the movable bracket (4) Blackboard adjustable angle, characterized in that the insertion between the position fixing jaw (31) of the three links (3) and any one position fixing groove (21) of the second link (2).

The method of claim 2,
The groove portion 41 of the moving bracket 4,
A first groove 411 in which the protrusion 32 is positioned while the position fixing jaw 31 of the third link 3 is inserted into the position fixing groove 21 of the second link 2;
A second position in which the protrusion 32 is positioned in a state where an insertion state between the position fixing jaw 31 of the third link 3 and the position fixing groove 21 of the second link 2 is released; Groove 412; And
The position fixing jaw 31 in the process of approaching the position fixing groove 21 located at the top after the position fixing groove 21 is separated from the position fixing groove 21 located at the last of the position fixing grooves 21 Chalkboard capable of adjusting the angle, characterized in that consisting of; the third groove 413, the projection 32 is positioned so that the 31 is prevented from being inserted into any one of the position fixing grooves 21 .

The method of claim 2,
The angle adjusting means,
And a cylinder device (6) having one end rotatably installed on the frame (F) and the other end rotatably installed on the board plate (B).

The method of claim 2,
The angle adjusting means,
A spring 5 for elastically pressing the protrusion 32 so that the protrusion 32 of the third link 3 can be pressed to the other side of the groove portion 41 of the moving bracket 4. Blackboard adjustable angle characterized in that it comprises.