JP2013010356A - Vertically sliding board mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vertically sliding board mechanism which allows anyone to easily perform the raising and lowering operation of a heavy board, such as an electronic black board including a projector.SOLUTION: A wall surface-fixed type vertically sliding board mechanism includes a raising and lowering mechanism on the back surface. A spring box 7 housing a constant force spring 8 is disposed in the raising and lowering mechanism, an L-shaped plate 9 is attached to the tip end of the constant force spring 8, and the L-shaped plate 9 is fixed to a case 11 of the raising and lowering mechanism or at an arbitrary position on the backside of the board, whereby the raising and lowering operation of the board 1 is assisted by the raising and lowering mechanism. For example, a bracket is arranged in the spring box 7, and the spring box 7 is fixed via the bracket to the case 11 of the raising and lowering mechanism or at an arbitrary position on the backside of the board.

Description

  The present invention is an up-and-down sliding board mechanism, more specifically, a board with a relatively heavy weight such as a white board or a blackboard for wall installation can be lifted up and down to an arbitrary height and easily held in that position. The present invention relates to a vertical sliding board mechanism.

  Conventionally, there are blackboards and whiteboards that slide vertically. For example, the elevating mechanism has two guide bars that slide up and down in a case attached to a wall on the back surface of a blackboard. For example, in the case, a pair of pulleys, two wires wound around the pulley, and a spring for urging the wires are provided, and ends of the wires are fixed to the pulley and the guide bar. (Japanese Utility Model Publication No. 47-36535, Japanese Utility Model Publication No. 54-29852). Some use a piston cylinder instead of the spring (Japanese Utility Model Publication No. 56-36352).

  By the way, recently, for lectures, classes, meetings, etc., a so-called blackboard or whiteboard or other writing board is equipped with a projection screen, or a whiteboard is also used as a projection screen and a projector is mounted on the board. Board-type electronic blackboards are becoming widely used. This board-type electronic blackboard is heavier because it is equipped with a projector, and in a lift type, a certain amount of force is required when moving up to make it easier to see from the back seat. . There is also a problem that the brake function of the board lifting mechanism is affected and the board is gradually lowered.

Japanese Utility Model Publication No. 47-36535 Japanese Utility Model Publication No.54-29852 Japanese Utility Model Publication No. 56-36352

  As described above, according to the present invention, when the weight of the liftable board is conventionally increased, the lifting operation can be easily performed, and the weight of the board may hinder the braking performance of the lifting mechanism. This has been done in view of the fact that no countermeasures have been taken.

  That is, according to the present invention, it is possible to easily perform a lifting operation of a heavy board such as a board-type electronic blackboard equipped with a projector, and the weight of the board hinders the braking performance of the lifting mechanism. It is an object of the present invention to provide a wall surface fixed type vertical sliding board mechanism that does not have a fear.

  The invention according to claim 1 for solving the above-mentioned problem is a wall surface fixed type vertical slide type board mechanism having a lifting mechanism on the back surface, and the lifting mechanism has a spring box containing a constant load spring. It is installed, an L-shaped plate is attached to the tip of the constant load spring, and the L-shaped plate is fixed to an arbitrary position on the back side of the case or the board of the lifting mechanism, whereby the board by the lifting mechanism An up-and-down sliding board mechanism characterized in that the lifting operation is assisted.

  In one embodiment, a bracket is disposed on the spring box, and the spring box is fixed to an arbitrary position on the back side of the case of the lifting mechanism or the board via the bracket. The board is an electronic blackboard or a white board provided with a projector.

  The present invention is as described above, and the up-and-down sliding board mechanism according to the present invention includes a lifting mechanism on the back surface of the board that moves up and down, and a constant load spring that acts on the lifting mechanism to assist the lifting mechanism. Since the board is urged upward by the action of a constant load spring, any person can easily perform the raising / lowering operation of the board without feeling the weight of the board. In addition, since the board is supported by a constant load spring attached to the lifting mechanism, the brake function of the lifting mechanism is not hindered by the weight of the board.

It is a front view of the state which removed the board which shows the structural example of the up-and-down sliding board mechanism which concerns on this invention. It is a side view of the state which removed the board which shows the structural example of the up-and-down sliding board mechanism which concerns on this invention. It is a perspective view (at the time of contraction) which shows the structure of the spring box which accommodated the constant load spring used in the up-and-down slide type board mechanism concerning the present invention. It is a perspective view (at the time of extension) which shows composition of a spring box which stored a constant load spring used in an up-and-down slide type board mechanism concerning the present invention.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The vertical sliding board mechanism according to the present invention is provided with an elevating mechanism on the back of the board 1 that moves up and down, and a spring box 7 that houses a constant load spring 8 that acts to assist the elevating operation in the elevating mechanism. It is characterized by being.

  The raising / lowering mechanism itself has a general configuration that has been conventionally used, and a guide that constitutes a board holding frame so as to slide up and down through both ends of a case 11 that is attached and fixed to a wall. Bars 12 and 13 are installed. The upper ends of the guide bars 12 and 13 are connected by the upper connecting member 14, and the lower ends thereof are connected by the lower connecting member 15.

  In the case 11, a pair of pulleys 16, 17, two strips of wires 18, 19 that are wound around the pulleys 16, 17, and a spring 20 that biases the wires 18 are provided. Is fixed to the lower connecting member 15. Further, the board 1 is locked by the action of the brake plate 21 and the brake handle 22, and the board 1 can be stopped at a desired position. The configuration of the board lifting mechanism and the lifting action of the board holding frame are not particularly different from the conventional one.

  As described above, in the vertical sliding board mechanism according to the present invention, the spring box 7 that houses the winding constant load spring 8 is installed on the side surface or wall surface of the case 11. For example, the spring box 7 is appropriately provided with a bracket, and is installed in the case 11 via the bracket. The constant load spring 8 accommodated in the spring box 7 has a general-purpose trade name called a conston spring, and has an equilibrium restoring force in the rewinding direction with respect to the load drawn from the spring box 7. An L-shaped plate 9 is attached to the tip of the constant load spring 8, and the L-shaped plate 9 is fixed to the lower connecting member 15 or the back surface of the board 1.

  In the above configuration, when the lock is released when the board 1 is moved up and down, the load of the board 1 is caused to pass through the L-shaped plate 9 due to the torque characteristics of the repulsive spring, such as the constant load spring 8 trying to rewind into the spring box 7. Thus, the load with the board 1 connected to the belt-like spring 8 is suspended. Therefore, no matter how heavy the board 1 is, the raising / lowering operation is extremely easy.

  As described above, the up-and-down sliding board mechanism according to the present invention has a simple configuration, and moves the board 1 to an arbitrary height position by a simple operation that does not require force, regardless of gender. It is a very useful thing that can be fixed in position.

  Although the present invention has been described in some detail with respect to its most preferred embodiments, it will be apparent that a wide variety of different embodiments can be constructed without departing from the spirit and scope of the invention, the invention being defined by the appended claims. It is not restricted to the specific embodiment other than limiting in.

1 Board 7 Spring box 8 Constant load spring 9 L-shaped plate 11 Case

Claims (3)

  A fixed-wall-up / down-sliding board mechanism with a lifting mechanism on the back. The lifting mechanism has a spring box that houses a constant-load spring, and an L-shaped plate is attached to the tip of the constant-load spring. A vertical sliding board mechanism in which the L-shaped plate is fixed at an arbitrary position on the back side of the case or board of the lifting mechanism to assist the lifting operation of the board by the lifting mechanism .   The vertical sliding board mechanism according to claim 1, wherein a bracket is disposed on the spring box, and the spring box is fixed to an arbitrary position on the back side of the case of the lifting mechanism or the board via the bracket.   The vertical sliding board mechanism according to claim 1 or 2, wherein the board is an electronic blackboard or a white board provided with a projector.

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