JPS603100Y2 - Square cylindrical buffer frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a buffer frame that fits over the end of a square article.

As shown in Fig. 8, a conventional buffer frame of this type has been used in which a buffer material is inscribed and fitted into an opening at one end of a frame a formed into a rectangular tube shape. Such a structure requires a separate cushioning material such as a sponge board, which is uneconomical due to high cost.
The work of attaching the cushioning material to the frame is complicated and the workability is poor.Furthermore, the packaging mode is limited because the article can only be fitted from one open end side of the frame a. Ta.

In order to eliminate such drawbacks, the present invention provides a locking frame piece integrally on the inner circumferential surface of the open end on one side, and forms the front wall plate into a narrow strip that overlaps the outer surface of the locking frame piece. The present invention provides a rectangular cylindrical shock absorbing frame characterized in that a receiving plate is provided on the other side end face via a fold, and is connected to the receiving plate through a fold.

To explain the embodiment of the present invention with reference to the drawings, in FIGS. 3 to 7, the rear end sides of the rectangular upper and lower side plates 3 and 5 are connected at right angles to the upper and lower edges of the rectangular rear side plate 2, and the upper and lower side plates A narrow rectangular front side plate 4 is arranged between one side end of the front edges of 3 and 5, and both sides and the other side edge of the front side plate 4 have openings 20 and 21. 22L, forming a rectangular cylindrical body A.

11. Reference numerals 12, 13, and 14 are locking frame pieces that are approximately open to the front side plate 4, and are provided on the inner surface of the front side plate 4, the upper and lower side plates 3, 5, and the inner surface of one end of the rear side plate 2, respectively. They are pasted together and formed into a rectangular locking frame.

Reference numeral 18 denotes a rectangular receiving plate having a size equal to the shape of the inner circumferential surface of the rectangular cylindrical body A, and its minus side edge is attached to the other side edge of the narrow front side plate 4 through the fold 15. They are arranged in a row, and are bent inward from the fold 15 so that the outer circumferential portion thereof is brought into contact with and supported by the end face of the locking piece.

Fig. 1 is a developed view of the rectangular cylindrical shock absorbing frame constructed in this way, and shows that: (1) the rear side plate 2 is connected to one side of the vertically long rectangular bottom plate 3 via the fold 7; Fold 8 at the bottom of the side
A narrow front side plate 4 is connected to the front side plate 4 through a fold 9, a top plate 5 is connected to the front side plate 4 through a fold 9, and a fold is formed on one side of the rear side plate 2. A thin joint piece 1 is connected to the upper side of the front side plate 4 through a fold 15.
8 are arranged in series, and locking frame pieces 11 are attached to the lower surfaces of the upper and lower plates 3 and 5 and the front and rear side plates 2 and 4 through folds 10, respectively.
, 12, 13, and 14 are arranged in series.

Such a structure is obtained by punching a corrugated sheet, and the folds 10 of the locking frame pieces 11, 12, 13, and 14 are formed by half cuts that leave one sheet of corrugated cardboard liner, and the receiving plate Both ends of 18 are separated from the opposite sides of the upper and lower plates 3, 5 by complete cuts 16, 17.

In order to assemble the square cylindrical buffer frame described above using the corrugated cardboard sheet thus formed, first, as shown in FIG.
Fold the top and bottom plates 3゜5 and the front and rear side plates 2 and 4.
, and then folds 6, 7, 8 .
9 so that the locking frame piece is located on the inner side.
The front and rear side plates 2 and 4 are erected at right angles, the top plate 5 is bent in the direction opposite to the bottom plate 3, and the joint piece 1 is stitched or glued onto the upper surface of the rear end of the top plate 5. After joining and adhering with a suitable adhesive, the receiving plate 18 is bent inward through the fold 15 to form the locking frame pieces 11, 12, 13, 14.
This can be achieved by abutting and receiving the end face of the

In this way, the present invention connects the rear edges of the upper and lower panels with a rear side plate, and connects one end of the front edge with a narrow front side plate, thereby providing a connection between both sides and the front side. A rectangular cylindrical body made of a cardboard seal with the other side edge of the face plate open is formed, and the narrow front side plate and a locking frame that is approximately open are formed on the inner peripheral surface of one end of the rectangular cylindrical body. A rectangular cylindrical buffer frame is provided with a receiving plate whose outer peripheral edge can come into contact with the end face of the locking fragment via a fold on the other side edge of the narrow front side plate. Since it can be formed into a shape that can be bent from a corrugated cardboard sheet, it is inexpensive and suitable for mass production, and it eliminates the need to install a separate buffer plate as in the past, making packaging work more efficient. It is something that can be done.

Furthermore, since the receiving plate is connected to the narrow front side plate through the fold, the receiving plate can be bent inward with one touch and abutted against the end face of the locking frame piece. In this state, as shown in FIG. 7, the contents 19 can be internally fitted and firmly received by the receiving plate.

In addition, since an opening is formed on the other end surface of the front side plate by bending the receiving plate, it is possible to insert the article from this opening side as well, allowing you to check the size, weight, etc. of the article. It is now possible to select a packaging mode that is suitable for This has the advantage that it can be easily fitted internally into the buffer frame.

[Brief explanation of the drawing]

Figures 1 to 7 show embodiments of the present invention.
The figure is a developed view, Figure 2 is a perspective view of the locking frame piece in a folded state, Figure 3 is a left side view of the buffer frame, Figure 4 is its front view, and Figure 5 is its right side view. , Figure 6 is a perspective view,
FIG. 7 is a perspective view of a buffer frame in which an article is internally fitted, and FIG. 8 is a perspective view of a conventional buffer frame. 1 is a joint piece, 2 and 4 are front and rear side plates, 3 and 5 are upper and lower plates, 6. 7. 8. 9. 10. 15 is the fold;
11, 12, 13, and 14 are locking frame pieces, 16° and 17 are notches, 18 are receiving plates, and 20, 21°, and 22 are openings.

Claims (1)

[Scope of utility model registration request] A rear side plate is connected between the rear edges of the upper and lower plates, and a narrow front side plate is connected between one end of the front edge to connect both sides and the other edge of the front side plate. A rectangular cylindrical body made of a cardboard sheet with an open end is formed, and the narrow front side plate and a locking frame piece of approximately open space are provided on the inner circumferential surface of one end of the rectangular cylindrical body, and A rectangular cylindrical shock absorbing frame in which a receiving plate is connected to the other side edge of the narrow front side plate through a fold, the outer peripheral edge of which can come into contact with the end face of the locking fragment.