JP7150258B2 - folding top plate - Google Patents

Description

TECHNICAL FIELD The present invention relates to a folding top plate used as a top plate for a table, a top plate for a cart, or the like.

A folding table is formed by connecting leg members having a structure in which a plurality of divided top plates are connected in parallel to form a flat plate in a state of use, and are bundled or folded in a state of non-use, and the structure maintains the flat plate shape. is doing.

Examples of the connecting structure that allows the top plate to be freely folded include a structure in which a split top plate is attached to a flexible sheet body (Patent Document 1), and a structure in which split top plates arranged in parallel with a string or rubber string are passed through. (Patent Document 2), and a structure in which movable connecting bodies having shaft mounting portions at both ends are attached to and connected to the ends of adjacent divided top plates (Patent Document 3) are known.

Further, the means for holding the divided top plate in a flat plate shape is provided with locking members having a predetermined connection structure on the back surface of the divided top plate at or near both side ends, and corresponding to the connection structure of the locking members. Support rods having a connecting structure are attached to the rear surface of the divided top plate in a flat plate shape in a parallel state.

JP-A-10-262738. JP-A-11-196939. Japanese Patent Laid-Open No. 2001-137051.

The conventional means for maintaining the flat plate shape of the divided top plates connected in parallel has the locking member provided on the back surface of the predetermined divided top plate as described above. It is necessary to provide the locking member on the plate, and when assembling the divided top plate into the connecting structure, it is complicated to set the divided top plate provided with the locking member at a predetermined position. Alternatively, after the connecting structure is assembled, an operation of providing the locking member at a predetermined position is required.

Further, if the split top plate is provided with the locking member, when the split top plate is folded or bundled, the locking member protrudes and interferes with folding.

Therefore, the present invention proposes a folding top plate having a novel flat plate maintaining structure in which the top plate is composed only of divided top plates of the same structure.

A folding top plate according to claim 1 of the present invention includes a plurality of divided top plates that are parallel to each other in a flat plate shape, a connecting protrusion, and a fitting receiving portion provided on the connecting protrusion . Holding plates arranged at the left and right ends and insertion portions corresponding to the fitting receiving portions are provided at both ends, and the divided top plate and supporting rods having a corresponding length are provided, and the divided top plate and the holding rod are provided. The plates are arranged side by side starting from the lower surface of one of the holding plates, which is the projecting direction of the connecting projecting portion, so that the divided top plate is flat and the fitting receiving portion is located on the lower surface side of the divided top plate. The left and right holding plates are connected by passing through the divided top plate, folding back on the lower surface of the other holding plate, and connecting with a string that is fixed at the starting point surface, and fitting the insertion portion of the support rod into the fitting receiving portion. The passage of the string of the holding plate is formed by an upper and lower passage hole passing through the upper and lower surfaces of the holding plate, and a side passage opening the side of the upper and lower passage hole on the side of the divided top plate from the upper surface to an appropriate position. It is characterized by

When the string is loosened, the folding top plate can bundle the divided top plate and the holding plate. (Including the case where an inclusion exists), the split top plate becomes flat in a parallel state, and the fitting part is fitted into the fitting receiving part (fitting hole or fitting groove) protruding to the lower surface side of the split top plate. Together, the support rods are installed between the holding plates to maintain the flatness of the split top plate.

In addition to the case where the top and bottom surfaces of the holding plate are aligned with the top and bottom surfaces of the split top plate and the support rods are used to keep the split top plate flat, the left and right sides of the holding plate are aligned with the top and bottom surfaces of the split top plate. It is flat and used as a flexible top plate, or if a connecting structure is added to the left and right end faces of the split top plate, it can be used as a top plate that maintains a flat surface without using support rods.

According to the second aspect of the present invention, there is provided a table top plate in which the split top plate is formed of an extruded material having a shaft mounting portion, and the top plate connecting portion can be formed at the same time when the split top plate is formed. .

Further, the folding top plate according to claim 3 is formed by attaching simple foldable legs to the supporting rods, and can be used as a simple table.

In the structure of the present invention, as described above, it is not necessary to provide the locking members of the lower surface support rods of the divided top plate on the divided top plate. is.

The whole perspective view of the top plate of embodiment of this invention. The whole perspective view of the same use member. The perspective view of the same use condition. The perspective view of the same folding state. Explanatory drawing of another example of the same use condition. Explanatory drawing of the same support rod. Explanatory drawing of the connection state of the divided top plate and the support rod.

Next, embodiments of the present invention will be described. The folding top plate shown in the embodiment is composed of a split top plate 1 , a holding plate 2 , a string 3 that connects and integrates the split top plate 1 and the holding plate 2 , and a support rod 4 .

A plurality of split top plates 1 are arranged side by side in the left-right direction to form a top plate, and through holes 11 for the string 3 passing through the left and right side surfaces of the string 3 are formed in the vicinity of the front and rear ends.

The holding plates 2a and 2b are formed to have a length corresponding to the front and rear width of the split top plate 1, and when the upper surface 22 is flush with the upper surface of the split top plate 1 at the front and rear ends of the lower surface 21, the split top plate A connecting projection 23 projecting downward from the lower surface of the housing 1 is provided at the front and rear ends, and the connecting projection 23 is provided with a through hole or a groove-shaped fitting receiving portion 24 opening on the outer periphery.

The holding plates 2a and 2b are provided with passages for the string 3 at front and rear positions corresponding to the through holes 11 of the string. and a side passage 26 that opens from the upper surface 22 to the position of the through hole 11 on the side surface of the upper and lower passage hole 25 on the divided top plate 1 side.

The cord body 3 may be a normal braided cord or an elastic rubber cord. It passes through the through hole 11 of the divided top plate 1, folds back at the lower surface 21 of the other holding plate 2b, and attaches a fastening member 32 to the cord body 3 at the starting point surface so that it can be fastened.

It should be noted that any structure may be adopted as long as the string body 3 exhibits a predetermined function (folding of the divided top plate), and is not limited to the above-described embodiment. For example, one holding plate 2a may be used as the starting point and the other holding plate 2b may be used as the end point (fastening point) instead of folding the cord body 3 as in the above-described embodiment. Instead, the end point of the string 3 may be tied to the starting point of the string 3, or some fixing points may be provided on the holding plates 2a and 2b, or a means for simply providing a knot may be used.

The supporting rods 4 have the same length as the left and right width of the divided top plate 1 in the parallel state, and have fitting portions 41 corresponding to the fitting receiving portions 24 at both ends, and foldable simple legs 5. It is attached.

The simple legs 5 are pivotally connected by pivots 51 near both ends (left and right ends), and are provided with fixing holes 52 in the legs 5. Locking holes 42a and 42b are provided on the locus of rotation), and the locking pin 53 inserted into the fixing hole 52 is inserted at the position where the leg 5 is placed on the support rod 4 and the position where the leg is erected. The leg 5 can be locked at a desired position by inserting it into the locking holes 42a and 42b. Needless to say, any locking structure may be adopted in place of the locking pin 53 .

When the cord body 3 is loosened, the folding top plate 1 and the holding plates 2a and 2b are bundled as shown in FIG.

When the cords 3 are tightened, the left and right end surfaces of the adjacent split top plates are brought into close contact with each other (including the case where an intervening object exists), and the split top plates 1 are arranged in parallel to form a flat plate. When tightening the cord body 3, if the left and right side surfaces of the retaining plates 2a and 2b are aligned with the upper and lower surfaces of the divided top plate 1 and the entirety including the retaining plates 2a and 2b is flat, as shown in FIG. In addition, the string 3 passes only through the upper and lower passage holes 25, and if a special connection structure is not adopted for the side surface of the divided top plate 1, there is a possibility that it will be bent, but as a single plate can be used (Fig. 1).

When tightening the string 3, when the upper surface 22 of each of the holding plates 2a and 2b is aligned with the upper surface of the divided top plate 1, and the fitting portion 41 is fitted into the fitting receiving portion 24 of the support rod 4, The holding plates 2a and 2b and the support rods 4 installed between the holding plates 2a and 2b form the lower frame of the divided top plate, thereby keeping the divided top plate 1 flat (Fig. 3(a)).

When the divided top plate 1 is maintained as a flat plate, for example, when it is used as a lid body for a truck A, the holding plates 2a and 2b and the support rod body 4 serve as a lid lower frame, surrounding the outer periphery of the opening to be coated. In addition, as shown in FIG. 5(b), the connecting projecting portion 23 and the support rod 4 are positioned on both sides of the opening to be covered, so that the lid can be used as a cover in both directions. Prevents slipping.

Further, as shown in FIG. 3(b), the simple legs 5 are placed in an upright state, and the locking pins 53 are attached and locked, whereby it can be used as a table.

1 Divided top plate 11 Through holes 2a, 2b Holding plate 21 Lower surface 22 Upper surface 23 Connection protrusion 24 Fitting receiving portion 25 Upper and lower passage hole 26 Side passage 3 String 31 Starting point 32 Fastening member 4 Support rod 41 Fitting portions 42a, 42b Locking hole 5 Simple leg body 51 Pivot shaft 52 Fastening hole 53 Locking pin

Claims (3)

A plurality of divided top plates arranged in parallel on the left and right in a flat plate shape, holding plates provided with connection projections and fitting receiving portions provided on the connection projections, and arranged at the left and right ends of the parallel state, and the fittings on both ends. A fitting portion corresponding to the mating receiving portion is provided, and it is composed of a divided top plate in a parallel state and a support rod body of a corresponding length,
The divided top plate and the holding plate are arranged so that the divided top plate is flat and the fitting receiving portion is positioned on the lower surface side of the divided top plate, and the lower surface of one of the holding plates becomes the projecting direction of the connecting projecting portion. is the starting point, it is connected by a string body that penetrates the parallel divided top plate and is folded back at the lower surface of the other holding plate and fixed at the starting point surface, and the fitting part of the support rod is fitted to the fitting receiving part, and the left and right holding plates is concatenated with
The passage of the string of the holding plate is formed by an upper and lower passage hole passing through the upper and lower surfaces of the holding plate and a side passage opening the side of the upper and lower passage hole on the side of the divided top plate from the upper surface to an appropriate position . folding roof. 2. The folding top plate according to claim 1, wherein the holding plate is formed to have a length corresponding to the front and rear width of the divided top plate, and connecting protrusions are provided at the front and rear ends thereof. 3. The folding top plate according to claim 2 , wherein the support rods are provided with simple foldable legs.

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