JPH06239091A - Chalk powder receiving plate of blackboard - Google Patents

Abstract

PURPOSE:To make it possible to easily replace an article storage case fixed to the rear surface of a body of a powder receiving plate of a chalk powder receiving plate adapted to be attached to the lower edge of a blackboard. CONSTITUTION:Bent pieces are provided respectively at the lower ends of forward and rearward side walls which are provided vertically on the rear surface of a body 1, in the longitudinal direction thereof, of a powder receiving plate formed from aluminum material by extrusion molding, and locking pieces provided on the upper surface of an article storage case are engaged slidably with the bent pieces respectively. A board 16 on which vertical walls 16', 16' adapted to slidably contact the underside of a plate 2 of the body 1 and an end cover 13, on which restraining pieces 17, 17 having on their forward ends engaging claws 18, 18 adapted to be resiliently locked to the notches provided on the bent pieces are provided, are releasably attached to the opposite ends of the body 1 in the longitudinal direction thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure in which an article storage case mounted on the back surface of a powder pan body of a choke powder pan attached to the lower edge of a blackboard can be easily replaced.

[0002]

2. Description of the Related Art Conventionally, such a chalk powder saucer for a blackboard is used, for example, in Japanese Utility Model Publication No. 55-239, which is the invention of the applicant.
No. 08 is known. This invention is a mounting plate in which two locking frame parts are provided at predetermined intervals on the back surface in the longitudinal direction of a powder saucer formed by extrusion molding of aluminum material, and a storage box is fixed to the locking frame parts. It is configured such that the end groove covers are fixed to both ends in the longitudinal direction of the rear powder saucer in which the engagement groove frame portions provided on the upper surface are slidably fitted.

[0003]

However, in the invention disclosed in the above publication, the ceiling wall of the storage box is attached and fixed to the lower surface of the attachment plate with bolts and nuts, or is adhesively fixed with an adhesive or the like. In addition, since the structure is complicated and the edge covers at both longitudinal ends of the powder pan are fixed, it is impossible to replace the storage box, which is inconvenient. Therefore, it is an object of the present invention to provide a chalk powder saucer for a blackboard which solves all of these problems.

[0004]

The chalk powder tray of the blackboard of the present invention has bent pieces at the lower ends of both front and rear walls vertically provided on the back surface in the longitudinal direction of the powder tray main body formed by extrusion molding of an aluminum material. Extending, the locking piece provided on the upper surface of the article storage case is slidably locked to these bent pieces,
Further, at both longitudinal ends of the powder saucer main body, a locking plate is provided which vertically slides a vertical wall to be slidably contacted with the lower surface of the tray of the powder saucer main body and elastically engages with notches formed in the bent piece. A restraining piece provided with a claw at the tip is provided so that an edge cover made of a synthetic resin material can be detachably attached.

[0005]

In the article storage case, since the end edge cover of the longitudinal end of the powder tray main body can be attached freely, should the article storage case be used by fitting it to the engaging frame portion on the back surface of the powder tray main body as necessary? You can choose whether or not. Therefore, when the article storage case is attached to the powder saucer main body, various articles can be stored and organized, and the edge cover at one end can be removed to easily replace the articles according to the articles to be stored.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of the front side of the chalk powder tray of the blackboard of the present invention showing one end in the longitudinal direction, and FIG. 2 is a perspective view of the back side thereof. In the figure, reference numeral 1 is a powder saucer main body, and a U-shaped dish portion 2 having a shallow cross section and a concave groove 3 for placing a choke on the front side thereof are continuously provided on the surface, and a front side wall 4 having an arc-shaped cross section is provided in front of the concave groove 3.
And a vertical front wall 6 of a hanging frame 5 to be hooked on the blackboard support frame is integrally connected to the rear end of the plate portion 2, and a rear side wall 7 is further provided below the vertical front wall 6. It is installed vertically.

On the back surface of the powder saucer main body 1, bent pieces 8 and 9 in which the lower ends of the front side wall 4 and the rear side wall 7 are horizontally bent inwardly are extended, and the powder is formed by extrusion molding of an aluminum material. The saucer body 1 is integrally formed. Furthermore, the bent pieces 8 and 9
As shown in FIG. 4, notches 10 and 10 are provided at certain dimensional positions from the end of the powder saucer main body 1.

As shown in FIG. 6, the engaging pieces 12, 12 provided at the upper end of the article storage case 11 are fitted to the bent pieces 8, 9 at one end of the powder tray main body 1 thus formed. The article storage case 11 is slidably mounted. The article storage case 11 is for accommodating and organizing various articles such as a chalk storage box, a blackboard wipe, documents and books.

Reference numeral 13 denotes an edge cover made of synthetic resin which is detachably attached to the end of the main body 1 of the powder receiving tray, and has concave portions 2a and 3 for closing the dish portion 2 and the concave groove 3 inside the surface.
a is formed, and engaging projections 14 and 15 are provided at the rear end of the recess 2a and the tip of the recess 3a. Further, on the lower side of the edge cover 13, a vertical wall 1 that is slid on the back surface of the dish 2 in the center is provided.
6'and 16 'are made to stand upright, and at the same time, front and rear ends of the superposed plate 16 are provided with restraining pieces 17 and 17 for restraining the bent pieces 8 and 9, respectively. Locking claws 18, 18 for elastically locking the cutouts 10, 10 are formed at the tips of the restraining pieces 17, 17.

When the article storage case 11 is used as described above, the edge cover 13 thus formed is fitted in advance to the bent pieces 8 and 9 on the back surface of the powder tray main body 1 when the article storage case 11 is used. The vertical walls 16 ′, 16 ′ of the overlapping plate 16 are pressed against the end of the mounted rear-powder saucer body 1 while sliding the vertical walls 16 ′, 16 ′ to the back surface of the tray portion 2, and at the same time, the restraining pieces 17, 17 are fitted to the bending pieces 8, 9. And the locking claws 18 formed on the tips of the restraining pieces 17, 17 with the end surface of the overlapping plate 16 joined to the back surface of the dish 2.
18 is elastically locked to the notches 10 and 10, and the projections 14 and 15 are fitted inside the front wall 4 and the rear side wall 7, respectively, so that the terminal cover 13 is securely attached to the end of the powder saucer body 1. It is attached and fixed to. Further, the terminal cover 13 fixed to the end of the powder saucer body 1 in this manner has the locking claws 18 and 1 elastically locked to the cutouts 10 and 10 of the restraining pieces 17 and 17.
Since the terminal cover 13 can be detached from the powder tray main body 1 by pulling the terminal cover 13 outward from the powder tray main body 1 in a free state by pushing 8 upward in the direction shown by the arrow in FIG. The article storage case 11 can be easily removed from the powder saucer main body 1 and the article storage case 11 can be easily removed.
Can be replaced freely.

[0011]

As described above, the chalk powder tray on the blackboard of the present invention allows the article storage case to be easily attached to the bent piece protruding from the back surface of the powder tray body, and moreover,
Since the article storage case can be slidably mounted on the back surface of the powder pan body, it can be used conveniently. Further, since the edge cover attached to the end of the powder saucer main body is detachably attached to the powder saucer main body, the article storage case can be easily replaced as needed.

[Brief description of drawings]

FIG. 1 is a perspective view of a front surface side of one end portion in the longitudinal direction of a chalk powder saucer.

FIG. 2 is a perspective view of the back side of FIG.

FIG. 3 is an exploded perspective view of FIG.

FIG. 4 is an exploded perspective view of FIG.

5 is a cross-sectional view of the left end portion of FIG.

FIG. 6 is a perspective view showing a part of a use state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Powder saucer main body 2 Dish part 4 Front side wall 7 Rear side wall 8,9 Bending piece part 10,10 Notch part 11 Article storage case 12,12 Locking piece part 13 End edge cover 16 Overlapping plate 16 ', 16' Vertical wall 17,17 Deterrent piece 18,18 Locking claw

Claims (1)

[Claims] 1. Folding pieces are respectively extended at the lower ends of front and rear side walls vertically provided on the back surface in the longitudinal direction of a powder saucer main body formed by extrusion molding of an aluminum material, and the folding pieces of the article storage case are attached to these folding pieces. The locking piece provided on the upper surface is slidably fitted, and at the longitudinal ends of the powder pan body, a vertical wall that is slidably contacted with the lower surface of the pan of the powder pan body is placed upright. A chalk powder saucer for a blackboard constituted by detachably mounting a plywood and an edge cover projecting a restraining piece provided at the tip with a locking claw for elastically locking the notch provided in the bent piece .