Wheeled luggage and base-and-frame assembly therefor

a technology of base and frame assembly and luggage, which is applied in the direction of luggage, other accessories, travelling accessories, etc., can solve the problems of high manufacturing cost, difficult to effectively utilize the interior space of the casing main body has to be sturdily structured

Inactive Publication Date: 2009-07-30
SWANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0018]The present invention has been made with an aim to further remedy the above-mentioned disadvantages, and a primary object of the invention is to provide a wheeled luggage and its constituent base-and-frame assembly which are designed to reinforce an extendable rod and ensure ease of control when the luggage is moved.

Problems solved by technology

In the luggage of this structure, the extendable rods 345 are hampering, which makes it difficult to effectively utilize the interior space of the casing main body 344.
However, since the extendable rods are fixedly attached to the casing main body in the luggage of this structure, the casing main body has to be sturdily structured.
Thus, the luggage of this structure suffers the disadvantage that the casing main body is intricately structured, resulting in a very high cost of manufacture.
The luggage of this structure also suffers the disadvantage that it is difficult to achieve reinforcement for a sturdy structure without reducing the interior space for storage.
This limits the width of the casing main body due to the distance between the pair of the reinforcement walls, and thus limiting the size and design, etc. of the casing main body to be carried on the platform.
In addition, when force is to be applied to a small area of the side face of the luggage, it becomes difficult to control the luggage.
As the result, less ease of pushing the luggage leads to limited controllability of the traveling direction of the luggage.
There is also a risk that the imbalanced luggage is liable to fall down.

Method used

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  • Wheeled luggage and base-and-frame assembly therefor
  • Wheeled luggage and base-and-frame assembly therefor
  • Wheeled luggage and base-and-frame assembly therefor

Examples

Experimental program
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first embodiment

[0057]FIG. 8 shows an exploded perspective view of a wheeled luggage 100 (which may sometimes be referred hereinafter to simply as “luggage”) in accordance with the first embodiment. Further, FIG. 9 shows a side view showing a state that a separable bag 3 is carried on a carriage surface 2. The wheeled luggage 100 is composed essentially of a separable bag 3 and a base-and-frame assembly 1 which can carry the separable bag 3. The base-and-frame assembly 1 has a carriage surface 2 on which the separable bag 3 is detachably carried. Four corners at the bottom face of the carriage surface 2 are respectively provided with a swivel caster 6 that can travel in free directions. Further, in at least a part of area at one side of the rectangular carriage surface 2, the base-and-frame assembly 1 has a hollow support tube 7 which is substantially vertically uprighted from the carriage surface 2 in an upward direction. An extendable rod 5 that can be vertically extended and retracted is inserte...

second embodiment

[0077]Further, connection means to be used between the separable bag 3 and the base-and-frame assembly 1 is not limited to the one that is described above. Another example of connection means shall be described below as the second embodiment. FIG. 16 is an exploded perspective view of a wheeled luggage 300 in accordance with the second embodiment. When compared with the luggage in accordance with the first embodiment, the luggage 300 shown in FIG. 16 differs only in a method of connecting the separable bag 3 to the base-and-frame assembly 1, with the remaining structure being the same. Therefore, a like structure shall bear a like reference numeral, and no additional explanation shall be made.

[0078]The separable bag 3 in accordance with the second embodiment has an insertion belt 40 opening in a vertical direction as shown in FIG. 16. The grip 4 of the base-and-frame assembly 1 is inserted through the lower portion of the opening, and then the grip 4 is extended upwardly, that is, t...

third embodiment

[0083]Further, FIG. 19 is a side view of the wheeled luggage 400 in accordance with the third embodiment, in which the extendable rod 5 is slantingly fixed to the carriage surface 2; when the extendable rod 5 is extended to lift up the grip 4, the grip 4 is made eccentric toward the center portion from one side of the carriage surface 2 to which the extendable rod 5 is fixed. In the case of the luggage 400 shown in FIG. 19, since the extendable rod 5 is fixed to the right side of the carriage surface 2, the extendable rod 5 is originally slanted so that when the extendable rod 5 is lifted up, the grip 4 is made eccentric from the right side to the left side of the carriage surface 2. Like the curved extendable rod 4, he slanted extendable rod 5 as well does not necessarily have to be positioned at the center portion of the carriage surface 2 in a state that the grip 4 is lifted up. This is because, even if the grip 4 is not positioned perfectly at the center portion, the luggage 400...

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Abstract

The base-and-frame assembly for the wheeled luggage includes: a platform having a carriage surface for detachably carrying a separable bag thereon; and an extendable rod connected to the support tube in a self-standing manner and having a grip connected at an upper end, and being stopped by a stopper at an extended position. The platform is provided with a latitudinal reinforcement rib integrally formed below a planar carriage plate with its top face serving as the carriage surface. In a horizontal plane including such surface, the latitudinal reinforcement rib extends in a lateral direction orthogonal to the grip, protruding on a bottom face of the carriage plate. A reinforcement protrusion is integrally formed with the latitudinal reinforcement rib, protruding downwardly at an area below the support tube.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to wheeled luggage and a base-and-frame assembly constituting the luggage, and in particular relates to the luggage having a vertically extendable and retractable handle.[0003]2. Description of the Related Art[0004]Wheeled luggage provided with an extractable handle has thus far been developed and used on many occasions. Many types of luggage of this structure are available with a size allowed to carry on into an aircraft or with a somewhat larger size. The luggage of such structure is described, for example, in U.S. Pat. No. 4,995,487, Japanese Application Laid-Open Publication No. H04-076686 (1992), Japanese Utility Model Publication No. S57-179824 (1982) and Japanese Utility Model Publication No. S63-131634 (1988). The luggage described in these publications is provided with two pieces of casters 41 on one side of the bottom face as shown in FIG. 1. Stubs or bosses 42 are fixed to the si...

Claims

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Application Information

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IPC IPC(8): A45C5/14
CPCA45C13/385A45C13/262
InventorMIYOSHI, ETSUO
OwnerSWANY