초록 ▼

The invention discloses a three-piece clamping device especially adapted for clamping together an inner packing box and an outer packing box or clamping together the packing boxes. The clamping device comprises a pair of rectangular retaining members similar in construction and a retaining wedge mem

The invention discloses a three-piece clamping device especially adapted for clamping together an inner packing box and an outer packing box or clamping together the packing boxes. The clamping device comprises a pair of rectangular retaining members similar in construction and a retaining wedge member with a knob or wing. According to one preferred embodiment, each retaining member has a saucer-shaped flat-bottomed barrel portion formed by a drawing operation, and a flange portion extending outwardly from the periphery of the open end of the barrel portion. An elongated-hexagon-shaped slot is formed through the flat bottom of the barrel portion, a projection is extended outwardly from the outer bottom surface and a recess is formed in the outer bottom surface of the barrel portion. The retaining wedge member has a wedge-shaped portion and a wing- or knob-shaped portion joined to the shorter base of the wedge-shaped portion, the longer base of which is slightly shorter than the length of the elongated-hexagon-shaped slot. The barrel portions of the retaining members are fitted into the holes formed through the side walls of the inner and outer packing boxes in such a manner that the outer bottom surfaces of the barrel portions are made into very close contact with each other and the projections are fitted into the mating recesses. Thereafter the retaining wedge member is inserted into the slots and rotated through 90°so that the retaining members are drawn to each other, thereby clamping the inner and outer packing boxes.

대표청구항 ▼

A three-piece shipping clamping device comprising a. a pair of retaining members similar in construction, each retaining member comprising a saucer-shaped flat-bottomed barrel portion of an elongated oval cross sectional configuration and with an elongated-hexagon-shaped slot formed through the flat

A three-piece shipping clamping device comprising a. a pair of retaining members similar in construction, each retaining member comprising a saucer-shaped flat-bottomed barrel portion of an elongated oval cross sectional configuration and with an elongated-hexagon-shaped slot formed through the flat bottom, said hexagon-shaped slot being elongated in the direction of the longer axis of the flat bottom of said barrel portion; and a flat flange portion extending outwardly from the periphery of the open end of said barrel portion; the barrel portions of said retaining members being fitted into the holes formed through the side walls of an outer packing box and an inner packing box to be fastened and in alingment with each other in such a way that the outer bottom surfaces of said barrel portions may be made into very close contact with each other and the flat flange portions may be pressed against the inner surface of the side wall of the inner box and the outer surface of the side wall of the outer box, respectively; and b. a retaining knob comprising a wedge-shaped portion, and a knob or wing portion connected to the shorter base of said wedge-shaped portion, the longer base of said wedge-shaped portion being shorter than the length in the elongated direction of said elongated-hexagon-shaped slot, whereby when said retaining knob is inserted into said elongated-hexagon-shaped slots of said pair of retaining members and rotated through 90°said pair of retaining members may be drawn toward each other, thereby fastening together said outer and inner packing boxes.