Packaging case having improved sidewall structure
First Claim
1. A packaging case comprising:
- a case body having a substantially rectangular bottom wall, side walls respectively continuously formed with one pair of opposing edge portions of said bottom wall, and front and rear walls respectively continuously formed with the other pair of opposing edge portions of said bottom wall and extending between said side walls, said case body being adapted to store an object; and
a lid having a substantially rectangular top wall continuously and pivotally formed with a top edge portion of said rear wall so as to cover and close an opening portion of said case body which is defined by top edge portions of said side walls, said front wall and said rear wall, lid side walls respectively continuously formed with a pair of edge portions adjacent to an edge portion of said top wall serving as a pivot center, and located outside said side walls of said case body upon closing said opening portion with said top wall, and a lid front wall continuously formed with an edge portion of said top wall which opposes said edge portion serving as the pivot center, extending between said lid side walls, and located outside said front wall of said case body upon closing said opening portion with said top wall,wherein outwardly extending flap pieces are continuously and pivotally formed on the top edge portions of said side walls of said case body, stepped portions are formed on inner surfaces of said lid side walls to engage with said flap pieces upon closing said opening portion with said top wall so as no prevent said lid from floating; and
a thickness of a predetermined portion of each side wall of said case body which faces to a corresponding one of said flap pieces is set smaller than that of a remaining portion of said each side wall such that an inner surface of said remaining portion is located more inside of said case body than an inner surface of said predetermined portion.
1 Assignment
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Accused Products
Abstract
A packaging case includes a case body for storing a wrap film and a lid continuously formed with the top edge portion of a rear wall of the case body. Flap pieces extend outward to be pivotal on the top edge portions of side walls of the case body. Stepped portions engaged with the flap pieces to prevent floating of the lid are formed on the inner surfaces of lid side walls covered on the side walls of the main body during closing of the lid. Predetermined portions of the side walls of the main body continuous with the flap pieces are made thinner than remaining portions of the side walls. The inner surfaces of the remaining portions are located inside the inner surfaces of the predetermined portions.
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Citations
46 Claims
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1. A packaging case comprising:
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a case body having a substantially rectangular bottom wall, side walls respectively continuously formed with one pair of opposing edge portions of said bottom wall, and front and rear walls respectively continuously formed with the other pair of opposing edge portions of said bottom wall and extending between said side walls, said case body being adapted to store an object; and a lid having a substantially rectangular top wall continuously and pivotally formed with a top edge portion of said rear wall so as to cover and close an opening portion of said case body which is defined by top edge portions of said side walls, said front wall and said rear wall, lid side walls respectively continuously formed with a pair of edge portions adjacent to an edge portion of said top wall serving as a pivot center, and located outside said side walls of said case body upon closing said opening portion with said top wall, and a lid front wall continuously formed with an edge portion of said top wall which opposes said edge portion serving as the pivot center, extending between said lid side walls, and located outside said front wall of said case body upon closing said opening portion with said top wall, wherein outwardly extending flap pieces are continuously and pivotally formed on the top edge portions of said side walls of said case body, stepped portions are formed on inner surfaces of said lid side walls to engage with said flap pieces upon closing said opening portion with said top wall so as no prevent said lid from floating; and
a thickness of a predetermined portion of each side wall of said case body which faces to a corresponding one of said flap pieces is set smaller than that of a remaining portion of said each side wall such that an inner surface of said remaining portion is located more inside of said case body than an inner surface of said predetermined portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 34, 35, 36)
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29. A packaging case comprising:
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a case body having a substantially rectangular bottom wall, side walls respectively continuously formed with one pair of opposing edge portions of said bottom wall, and front and rear walls respectively continuously formed with the other pair of opposing edge portions of said bottom wall and extending between said side walls, said case body being adapted to store an object; and a lid having a substantially rectangular top wall continuously and pivotally formed with a top edge portion of said rear wall so as to cover and close an opening portion of said case body which is defined by top edge portions of said side walls, said front wall and said rear wall, lid side walls respectively continuously formed with a pair of edge portions adjacent to an edge portion of said top wall serving as a pivot center and located outside said side walls of said case body upon closing said opening portion with said top wall, and a lid front wall continuously formed with an edge portion of said top wall which opposes said edge portion serving as the pivot center, extending between said lid side walls, and located outside said front wall of said case body upon closing said opening portion with said top wall, wherein outwardly extending flap pieces are continuously and pivotally formed on top edge portions of said side walls of said case body, stepped portions are formed on inner surfaces of said lid side walls to engage with said flap pieces upon closing said opening portion with said top wall so as to prevent said lid from floating, and front end portions of said flap pieces located on a front surface side of said case body are spaced apart from an outer surface of said front wall by a predetermined first distance. - View Dependent Claims (30, 31, 32, 33, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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46. A packaging case comprising:
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a case body having a substantially rectangular bottom wall, side walls respectively continuously formed with one pair of opposing edge portions of said bottom wall, and front and rear walls respectively continuously formed with the other pair of opposing edge portions of said bottom wall and extending between said side walls, said case body being adapted to store an object; a lid continuously and pivotally formed with a top edge portion of said rear wall so as to cover and close an opening portion of said case body which is defined by top edge portions of said side walls, said front wall and said rear wall; and wherein each of said side walls of said case body comprises a first piece extending from said bottom wall, a second piece extending from one of said front and rear walls of said case body and located inside said first piece, and a third piece extending from the other of said front and rear walls of said case body and located inside said second piece, said first to third pieces being adhered to each other with an adhesive, wherein a fold line is formed at a predetermined portion of one of said second and third pieces to form an object removal preventive member by bending inward in said case body a part of one of said second and third pieces after opening said case, and a notch is formed in a portion of said first piece which opposes said part serving as one of said removal preventive member.
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Specification