JP3065766U - Material support for blackboard - Google Patents

Abstract

(57) [Summary] [Problem] It can be easily attached to a blackboard, and the writing surface of the blackboard can be widely used. SOLUTION: A main frame 4 which can be attached to and detached from an upper edge of the blackboard 2 is connected to hinges 5 at ends of the main frame 4 so as to be in a folded state and a horizontal state parallel to a side edge of the blackboard 2. The arm includes a rotatable arm and stoppers for locking the arm in a horizontal state.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a document support for a blackboard that supports a material such as paper on the side of a blackboard having a description surface such as black, green, and white.

[0002]

[Prior art]

 In presentations using a blackboard supported by a stand, materials such as paper are often attached to the blackboard using magnets or thumbtack, and explanations are often given. The description surface is hidden or narrowed. In some cases, materials cannot be pasted using only the blackboard.

[0003]

[Problems to be solved by the invention]

 For this reason, it was necessary to arrange side by side with other blackboards and material supports with bars on the top of the stand, which required labor and preparation.

Accordingly, an object of the present invention is to provide a material support for a blackboard which can be easily attached to the blackboard and can arrange materials such as paper on the side of the blackboard.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a blackboard material support which is detachably attached to an upper edge of the blackboard, and which is hinged to an end of the mainframe so as to be parallel to a side edge of the blackboard. It is characterized by having an arm rotatable between a folded state and a horizontal state, and a stopper for locking the arm in a horizontal state. Further, the main frame can be formed in a U-shaped cross section that opens downward, and can be slidably connected in the width direction of the blackboard.

[0006]

[Embodiment of the invention]

 Hereinafter, the present invention will be described in more detail based on an embodiment shown in the drawings. FIGS. 1 to 3 show a first embodiment of the present invention. A document support 3 is attached to a blackboard 2 called a whiteboard having a white writing surface supported by a stand 1. . The material support 3 is connected to a main frame 4 that can be attached to and detached from the upper edge of the blackboard 2, and connected to both ends of the main frame 4 by a connecting member 7 having a hinge 5 and a stopper 6. The arm 8 has a pair of arms 8 that can be rotated between a folded state and a horizontal state that are parallel to the side edges of the two.

The main frame 4 is made of metal having a U-shaped cross section that opens downward at a width wider than the thickness of the upper edge of the blackboard 2. The U-shaped portion is attached to the upper edge of the blackboard 2. It is possible. The main frame 4 is formed to be slightly longer than the width of the blackboard 2, and has connecting member mounting portions 9 each having a U-shaped cross section which are bent downward at both ends by 90 degrees and cover the side edges of the blackboard 2. The main frame 4 has a bar 11 which can be screwed in order to attach a material 10 such as paper to the front surface thereof.

The stopper 6 locks the arm 8 in a horizontal state by linearizing the two foldable arms 6a and 6b and restricting the folding by a stopper piece 6c. The arm 8 is made of metal having a rectangular cross section, and has clips 12 and 12 for attaching a material 10 such as paper on the front surface. The material 10 such as paper can be attached by a magnet by making the main frame 4, the connecting member attaching portion 9 and the arm 8 made of steel.

FIGS. 4 and 5 show a second embodiment of the present invention. In the following embodiments, the same elements as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted. Is omitted. In the present embodiment, the main frame 4 is divided into two parts, and both frames 4a and 4b are slidably connected in the width direction of the blackboard 2 so as to be compatible with blackboards 2 of various widths. .

FIG. 6 and FIG. 7 show a third embodiment of the present invention, in which double hinges 5, 5 having different lengths of the main frame 4 are provided to connect the arms 8, 8, respectively. The arms 8, 8 are locked in a horizontal state by stoppers 6, 6 provided slidably inside the arm, and the arms 8, 8 can be folded along the main frame 4 as shown in FIG. Therefore, it is compact and portable.

[0011]

[Effect of the invention]

 As described above, the blackboard material support device of the present invention has a main frame detachably attached to the upper edge of the blackboard, a hinged state connected to an end of the main frame, and a folded state parallel to the side edge of the blackboard. It has an arm that can be rotated to the horizontal state and a stopper that locks the arm in the horizontal state, so it can be easily attached to the blackboard when necessary, and paper and other materials can be placed on the side of the blackboard. We can support and can use writing surface of chalkboard widely. In addition, the main frame is formed in a U-shaped cross section that opens downward so as to be attachable to the upper edge of the blackboard, so that attachment and detachment is easy. Furthermore, by connecting the main frame so as to be slidable in the width direction of the blackboard, it can be applied to blackboards of various widths.

[Brief description of the drawings]

FIG. 1 is a front view of a first embodiment of the present invention in which an arm of a blackboard data support is in a horizontal state;

FIG. 2 is a perspective view of the same main frame viewed from below.

FIG. 3 is a front view showing the arm in a folded state parallel to a side edge of the blackboard.

FIG. 4 is a partial sectional front view showing a second embodiment of the present invention;

FIG. 5 is a partial cross-sectional front view showing a state where the main frame is also expanded.

FIG. 6 is a partial cross-sectional front view showing a third embodiment of the present invention.

FIG. 7 is a front view showing the same folded state.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Stand, 2 ... Blackboard, 3 ... Material support, 4 ... Main frame, 5 ... Hinge, 6 ... Stopper, 8 ... Arm

Claims (3)

[Utility model registration claims] A main frame detachably attached to an upper edge of the blackboard, an arm hinged to an end of the main frame, and an arm rotatable between a folded state and a horizontal state parallel to a side edge of the blackboard; A blackboard material support, comprising: a stopper for locking the arm in a horizontal state. 2. The apparatus according to claim 1, wherein the main frame is formed in a U-shaped cross section that opens downward.
Material support for blackboard. 3. The blackboard material support according to claim 1, wherein the main frame is slidably connected in a width direction of the blackboard.