CN1292657A

CN1292657A - Lower profile towable luggage

Info

Publication number: CN1292657A
Application number: CN 99803852
Authority: CN
Inventors: B·D·萨多夫; J·A·施瓦布
Original assignee: Outrigger Inc
Current assignee: Outrigger Inc
Priority date: 1998-01-09
Filing date: 1999-01-08
Publication date: 2001-04-25
Also published as: EP1045654A1; JP2003521262A; EP1045654A4; WO1999034703A1

Abstract

An article of towable luggage has ground engagable wheels (24) mounted on the major front or rear wall, to permit towing of said article of luggage over a ground surface with the selected wall in proximity to and presented to the ground surface (42), the article of towable luggage being towable by a towing strap (44) attached to said article of towable luggage, or by a handle (18) having telescopic legs (20) pivotally attached to the article of luggage, the telescopic legs of the handle in the alternative being telescopically received within the body of the article of luggage, the respective legs including hinges permitting the handle to be raised and lowered relative to the article of luggage.

Description

The luggage case of drawing that profile is lower

Cross reference to related application

The application is the part continuation application of our common unsettled international application No.PCT/US98/12162 that submits on June 8th, 1998, this application is the continuation application of our common unsettled American National patent application serial numbers No.09/056104 that submits on April 6th, 1998, the latter is the part continuation application of our common unsettled American National patent application serial numbers No.09/015571 that submits on January 30th, 1998, the latter is the part continuation application of our common unsettled American National patent application serial numbers No.09/005313 that submits on January 9th, 1998, and the latter is our part continuation application at the common unsettled American National patent application serial numbers No.08/871472 of submission on June 9th, 1997.

The field of the invention

The form of the present invention relates to is the luggage case of Box for containing clothes or the chest carried, is commonly used to transport the luggage case of clothing and personal belongings such as aircraft passengers or other travellers.

Background of the present invention

Usually the chest of carrying of known belt wheel comprises that one is firm framework basically, it provides the main wall of sidewall and front and back of this chest, this framework supports these main walls, and at least one in the main wall comprises the slide fastener installed part that installs on the sidewall contiguous in the sidewall.

The chest of carrying of belt wheel also is well-known in the art, it comprises the handle in the body of the chest on one of sidewall that can telescopically stretch or be retracted in it, and being located at wheel on the relative sidewall of chest, these wheels can be on the ground such as rolling on the floor on airport or on the passenger corridor on the airport.

Although this device is fabulous for less relatively luggage case,, under the situation of the heavier luggage case of bigger luggage case and loading, have problems.

Bigger and the heavier luggage case of even now can be stored in the luggage cabin or other conveyer of automobile, but, in the time must being transported to some other position to luggage case, when rolling with wheel on the ground, problem has appearred aspect the adequate stability in that luggage case is provided, this is owing in the process of this luggage case that rolls with wheel, must hold this luggage case with the state of an inclination.In this state, the center of gravity of chest with transversely the moving of the wheel of ground engagement, and handle and and the wheel of ground engagement between.

This may make the people of dilatory this luggage case feel under the weather, require that people to apply enough big active force, the supporting handle, when the position of luggage case is in the state of inclination with respect to dilatory vertical direction, this active force may apply sizable downward active force on handle, apply this downward active force by user's the hand of holding with a firm grip.

Also have, the difference that depends on the people's who draws this luggage case height, shorter people will bear a much bigger active force to exist this situation to make relatively, this is because of comparing the vertical direction of higher physiognomy for this luggage case bigger inclination to be arranged, and because handle fix with respect to the position of luggage case, higher people can maintain this luggage case with the angle of inclination less with respect to vertical direction in the process of dilatory this luggage case.

As will recognize that, the wheel that luggage case is drawn thereon is as a fulcrum, and when moving on to the dilatory position of inclination by vertical position, luggage case about this fulcrum with respect to vertical direction at an angle.Also have, big more with respect to the angle of inclination of vertical direction, center of gravity is far away more with distance between the dilatory wheel that fulcrum is provided, and center of gravity is just transversely mobile transversely with the axis of the wheel of ground engagement of vertical direction.

A kind of mode person of being to use who reduces this problem is contained in the bottom of luggage case to all heavy article, near dilatory wheel, the remainder of chest by weight relatively lighter article take.Yet this situation does not often occur in the process of user's vanning.If relatively heavier article are installed in luggage case that end away from dilatory wheel, so, just will make the center of gravity of packaged luggage case move manyly with respect to the perpendicular of the axis that comprises dilatory wheel.

If the handle of chest is by landing in user's the hand of holding with a firm grip, unique possible sight is that luggage case will be dropped downwards on the ground of supporting with the article that it is comprised, and this may cause the damage that is contained in the article in the luggage case.

Another problem that often runs into of traveller is to handle a plurality of luggage cases.Even two chests all have wheel, dilatory (or pushing away) bothers more than a luggage case very much simultaneously.Equally, limited that a luggage case is overlapped onto ability on another luggage case, also increased weight significantly along the length of the handle of the inclination of the luggage case that is stowed.

Owing to this reason, although usually admit the luggage case of belt wheel advantage is arranged,, in use have tangible an open question, by adding wheel simply and a handle does not address these problems.

General introduction of the present invention

The present invention is set out by the luggage case of known belt wheel, its type is to comprise the handle that can be stretched by a wall of luggage case, or certain other towed equipment, this handle is drawn the wheel on another wall that is located at luggage case, the present invention has overcome the problem of prior art, this is to go up by one of the main antetheca that wheel is located at luggage case or rear wall to realize, this will make this luggage feather cockscomb can with the surface of ground engagement on dilatory this luggage case, the main wall of belt wheel that makes luggage case is near ground, what make like this that the user not be used in the user applies any active force on hand, the generation of this active force is owing to luggage case is to tilt with respect to vertical direction, as formerly have occur usually in the structure.In addition, luggage case can easily be used as a platform, can additional luggage case or other article be overlayed on this platform, and draws it easily and easily.

In one embodiment of the invention, on a main wall of luggage case, be provided with wheel with ground engagement, luggage case also has an extensile handle, not with fixing telescopic relation this handle to be set with luggage case, and can be parallel to the planar extension or the withdrawal of the main wall of luggage case, but comprise a dilatory part, this dilatory part is installed on the luggage case, and, it is extended into for state easy to use in dilatory this luggage feather cockscomb by luggage case.

For example, should dilatory part can be the arrowband of a flexibility, it can easily leave a pocket on the outer surface that is arranged in luggage case in, when on the main wall of belt wheel that this luggage case is placed on it, can be it by extracting out in this pocket, and use in the mode of leather strap, be used for dilatory luggage case.

In another embodiment, can be hinged on the luggage case away from that end of handlebar stem, and releasably be fastened on the luggage case near being preferably in the handlebar stem of expandable handle having an expandable handle that grasps handlebar stem.In this case, before on the main wall of belt wheel that luggage case is placed on it, handle is unclamped near the installment state that is attached to the handlebar stem on the luggage case by it, subsequently, make telescopic handle do rotation on the angle at handle away from that end of handlebar stem, thereby make its stretch the end of crossing luggage case about its pivot.Subsequently, can be placed on luggage case on its main wall of belt wheel.If be ready, can comprise a handle that carries that is contained in the side, make like this and can do traditional carrying, and can use it to make luggage case forward its dilatory operation orientation to equally easily.

Another embodiment comprises telescopic handle, it can stretch out a distance that enough hinge in the expandable handle is exposed by luggage case, these hinges make when exposing and handle can be raise with respect to luggage case and reduce, therefore, make have the people of any height can cosily draw this luggage case.Can be installed in a guard shield part on the luggage case hinge when protection exposes and the handle that is close to hinge.Under the certain condition in the position of hinge in the process of ground transport, barrier may damage hinge such as curb when luggage case being made progress and cross this curb.The guard shield part not only is used for protecting hinge that it is not damaged, and is best, its configuration made feasible traversing easily.

Can be locked in the telescopic handle in this embodiment (no matter whether using the guard shield part) by the different extension degree of chest, adapt to highly different people.Yet, when telescopic handle does not fully stretch, can only with respect to ground inclination the dilatory chest of attitude, as the front about on dilatory wheel 16, draw chest described.

In addition, hinge can be the first bearing type, the rotation of handle is substantially limited in two planes, plane is substantially perpendicular to the main wall of belt wheel of luggage case when luggage case is placed on its main wall, and another plane is identical to the inclination of horizontal plane with handle basically for the inclination of horizontal plane.

In addition, hinge can be the second bearing type, and rotation is substantially limited in the single plane, and this plane is substantially perpendicular to the main wall of belt wheel of luggage case.As another optional remodeling of the second bearing type hinge, hinge can have a mechanism, makes it to be locked in the plane of a perpendicular on the different anglecs of rotation, just in time with this plane as reference face.Another of the second bearing type hinge optionally remodeling makes when handle not being fixed on the another location, handle can " hasp returns " arrive vertical position, like this, when beginning once more to draw luggage case, handle is returned to preferred initial launch position again.Another of the second bearing type hinge optionally remodeling comprises a mechanism, this mechanism makes handle can do the rotation of the sort of type that contact first kind of bearing type hinge in front indicate in two planes, in addition, make handle be rotatably connected on the handle, thereby when handle rotates in a plane, make handle keep non-rotary state, substantially the same for the inclination of horizontal plane with handle inclination with respect to the horizontal plane.In this embodiment, the design of bearing type hinge has reduced in the distortion action power on the hinge and in handle, and, because in use less distortion action power is applied on user's the wrist and on the arm, uses more convenient.

Best, the main wall of belt wheel of luggage case be provided with a pair of can be about dilatory wheel and at least one gyroscope wheel of a fixing axis rotation, i.e. second axis that extends about the first axle that extends perpendicular to the back wall of luggage case and the back wall that the is parallel to luggage case wheel that can rotate randomly.Best, two such gyroscope wheels are set, establish one in each bight of the rectangular main wall basically of luggage feather cockscomb.In another program, have only the gyroscope wheel at a center between two bights of the rectangular main wall basically of luggage case just enough.Should be understood that, one or several that can only rotate about one or a few axis that the back wall that is parallel to luggage case is extended drawn certain in the wheel or all can be substituted with gyroscope wheel, still allows simultaneously to draw and takes turns the axis rotation of stretching about the back wall perpendicular to luggage case.If when dilatory wheel is made into a bigger sub-component a part of, can do the axis rotation that these sub-components can stretch about the back wall perpendicular to luggage case like this.

It is suitable with four wheels luggage case being bearing on its main wall this main wall at luggage case and being under the firm basically situation.Yet, when if the main wall of luggage case comprises the deformable material of a slice such as leather, artificial leather or cated Woven fabric, and situation often is so, and the main wall of luggage case is outwards swelled, particularly can be like this when the main wall of luggage case is moved to supporting ground.This may cause scratch or other damage at this main wall center.

In order to overcome this problem under the situation that is commonly called soft side luggage case, the center that is preferably in the main wall of luggage case establish a roller ball-type gyroscope wheel it can support the center of this main wall, make it leave the ground that is engaged.

Can be in luggage case with the roller Ball support of a suitable frame unit handle and ground engagement, the main wall that this frame unit is parallel to luggage case stretches, and for weight reduction, this frame unit is preferably the form of X framework, it provides for the supporting at the roller ball in the crosspoint of the arm of X-shaped framework, and it also is provided at the end of arm of X-shaped framework to the supporting of rolling wheel or gyroscope wheel.

Can on that wall relative luggage case, the inlet that enters trunk internal be set, perhaps, can be attached to the main wall of belt wheel on the sidewall of chest with pulling down with main wall belt wheel.

Can be designed so that some wheel at least on the main wall of luggage case they can be withdrawn into this main wall the surface below; in order that when not drawing chest, transport or store this luggage case easily; and, for these wheels of protection in the process of transportation and storage.Withdrawal can be by realizing that with the hand withdrawal perhaps as hereinafter described, retractible handle can make wheel withdrawal (or trailing) as an actuating mechanism that combines with wheel mechanism.

In another embodiment of the present invention, be provided with the device of the feasible luggage case of transportation easily stair activity.Consider that the present invention is used in the possibility of the luggage case of large-size, the weight that is stowed may cause on stair and descend too soon, perhaps causes when rising to downslide.In order to alleviate these potential problems, a preferred embodiment of the present invention comprises a kind of device, and for example its form is the support arrowband, and it is preferably separated with parallel relation along the surface of the supporting wheel of luggage case.These support arrowbands provide the recess of separating, and block the edge of step, and releasably support luggage case.They are helpful especially equally on escalator.

In addition, not only can be placed on luggage case on the ground, the main wall of belt wheel of luggage feather cockscomb is placed on the ground, prepare dilatory on the ground this luggage case, and the luggage case that content has been housed can be used as the shelf of belt wheel, can be used for transporting other luggage case, such as the little chest of carrying, handbag, carrier's bag, perhaps any article that other needs the user to transport.

Brief description of the drawings

To describe the present invention by accompanying drawing now, these accompanying drawings show the preferred embodiments of the present invention, in the accompanying drawings:

Fig. 1 is the front perspective view of the chest of carrying of belt wheel of the present invention, and it is in vertical state, with this state its supporting on the ground;

The view that Figure 1A gets for the 1A-1A hatching in Fig. 1;

Fig. 2 is the rear view of the chest of carrying of belt wheel shown in Figure 1, wherein the grip structure of this chest of carrying has been done the pivot rotation with respect to a main wall of this chest of carrying, and, this chest of carrying to place with the surface of ground engagement, be ready to dilatory this chest of carrying;

Fig. 3 is the rear view of the another kind of form of the chest of carrying of belt wheel shown in Figure 1;

Fig. 4 is and the corresponding front perspective view of Fig. 2, shows the chest of carrying of belt wheel shown in Figure 3, and it is in and is ready to be used for the state of on a supporting ground surface dilatory this chest; And

Fig. 5 is and the corresponding front perspective view of Fig. 4, shows the chest of carrying shown in Figure 4 when being used for transporting the auxiliary article of luggage, and this chest of carrying is used as shelf, can install on these shelf down the auxiliary article of luggage are removable;

Fig. 5 A is a plane, shows many luggage cases at the top that overlays a luggage case that is stowed, and a series of clasps and bar belting stack body to this and link together;

The fragmentary cross-sectional view that Fig. 5 B gets for the hatching 5B-5B along Fig. 5 A;

Fig. 5 C is the part perspective view that is stacked body by the luggage case that a flexible rope connects, and shows traditional handle and the sub-assembly that is used for the mounting knob of the rope on each luggage case;

The profile that Fig. 5 D gets for the hatching 5D-5D along Fig. 5 C;

The profile that Fig. 5 E gets for the hatching 5E-5E along Fig. 5 C;

Fig. 6 is the bottom view of luggage case, shows three wheels and the support arrowband on the bottom surface that are used to draw;

Fig. 6 A is the detail view of the amplifier section of one of support arrowband;

Fig. 6 B shows support arrowband in use for the side view of the luggage case of drawing on escalator;

The profile that Fig. 6 C gets for the hatching 6C-6C along Fig. 6 B;

Fig. 7 is the front perspective view of the chest of carrying of belt wheel, this chest has and is similar to the extensible handle that shown in Fig. 4 is equipped with hinge, this handle is in the state of withdrawal fully, difference is that this handle that hinge is housed is a straight member, its needed length is adjustable, and can lock.

The profile that Fig. 8 gets for the hatching 8-8 along Fig. 7;

The fragmentary cross-sectional view that Fig. 8 A gets for the hatching 8A-8A along Fig. 7;

Fig. 8 B is the detail view in the amplification in the zone shown in Fig. 8 A;

Fig. 8 C is the detail view in the amplification in the zone shown in Fig. 8 A;

The cutaway view that Fig. 9 gets for the hatching 9-9 along Fig. 8;

Figure 10 is the enlarged drawing of the part of Fig. 8, shows the state when pressing first button;

Figure 11 is corresponding with Fig. 7, and difference is that first scalable section of handle fully trails;

The fragmentary cross-sectional view that Figure 12 gets for the hatching 12-12 in Figure 11;

Figure 12 A shows the details of the amplification of a part shown in Figure 12;

Figure 12 B is another details in the zone shown in Figure 12 A;

Figure 13 is corresponding with Fig. 7, and difference is that handle fully trails, and chest is just placed with the rear wall of its belt wheel;

The fragmentary cross-sectional view of the amplification that Figure 14 gets for the hatching 14-14 in Figure 13;

Figure 15 is corresponding with Figure 13, and what difference was the hinge of handle with shown in Figure 13 is different;

The fragmentary cross-sectional view of the amplification that Figure 16 gets for the hatching 16-16 in Figure 15;

Figure 17 is the parts enlargement decomposition of the hinge of handle, and this hinge has lock pin and the Ball support spare that spring is housed;

Figure 17 A is the profile of the amplification of hinge shown in Figure 17 when assembling;

Figure 18 is the perspective view according to luggage case of the present invention, shows the telescopic leg that full extension opens and the shielding part of a protection usefulness, and this shielding part covers near the zone of telescopic leg hinge;

Figure 18 A is the detail view of an amplification, shows the shielding part of protection usefulness when telescopic leg is withdrawn fully;

The view that Figure 18 B gets for the hatching 18B-18B along Figure 18 A;

Figure 19 is a plane according to luggage case of the present invention, shows the hinge that is similar to hinge shown in Figure 13;

Figure 19 A is the section detail view in the amplification of one of hinge shown in Figure 19;

Figure 20 is the rear view of the chest of carrying of belt wheel of the present invention, and it and Fig. 3 are similar, difference be some wheel of this chest of carrying main wall surface of can be withdrawn into this chest of carrying below;

The fragmentary cross-sectional view of the amplification that Figure 21 gets for the hatching 21-21 in Figure 20;

Figure 22 is corresponding with Figure 20, and difference is that Figure 22 shows in the retractible of the running status that trails and takes turns, and Figure 20 shows and is in the retractible of retracted mode and takes turns;

The fragmentary cross-sectional view of the amplification that Figure 23 gets for the hatching 23-23 in Figure 22;

Figure 24 is the section plan of amplification that is used for the another kind of device of retractible wheel, and these retractible wheels illustrate with section in Figure 21 and 23;

Figure 25 is the side cutaway view of the amplification of the device shown in Figure 24;

Figure 26 is at the perspective view according to a molded item on the bottom of luggage case of the present invention, and retractible wheel and fixing wheel are installed on this molded item;

Figure 27 is the perspective view of top cover of the molding of luggage case, figure 26 illustrates the bottom molded item that is used for it;

Figure 28 amplifies detail view for the part that the base section according to the molding of luggage case of the present invention is cut open, show be used for automatically stretching and the bottom that is installed in molding of withdrawing on a kind of mechanism of wheel;

The profile that Figure 29 gets for the hatching 29-29 along Figure 28;

The profile that Figure 30 gets for the hatching 30-30 along Figure 29;

The description of preferred embodiment

Among each embodiment that begins now to describe, suppose that here the chest of carrying will be supported on the ground 10, such as the floor in pavement, side, hall or the main hall of building, airport or analog in its purposes of describing of novelty.

In Fig. 1, show the chest of carrying of the present invention that is in vertical state, at this state, pin 12 this chest of carrying 14 and ground engagement is placed on the ground 10.If desired, dilatory wheel 16 can provide the additional supporting for this feather cockscomb of carrying 14, as illustrated in Figure 3, these wheels can be about a fixing axis rotation, this axis is arranged in a plane or is close to and is parallel to this plane, this plane comprises a main wall of the chest that this is carried, and this plane also comprises the direction of slip of the handlebar stem 18 of a telescopic handle, and this handle has telescopic regracting and extensile leg 20.

As so far described, the chest of carrying comprises those general known parts in the chest of carrying of belt wheel commonly used.The user at first stretches out handlebar stem 18 from the body of the chest carried, then, use this handlebar stem that the chest of carrying is tilted to an obliquity by its vertical direction, it is dilatory on the ground with the dilatory wheel 16 of ground-engaging as shown in Figure 3 that this chest of carrying is supported for.

When this chest of carrying is that the relative ground of fulcrum is when forwarding a heeling condition to pull wheel 16, the amount that the center of gravity of chest tilts with respect to the upright position according to the chest land wheel that connects moves, and will himself be positioned to comprise on the opposite side of vertical plane of common axis of each ground engaging stabiliser wheel 16.

Where the center of gravity of reality of this chest of carrying of can not calculating to a nicety out will fix on, because this will depend on the weight and the position of these contents in the chest that this is carried of the content of the chest that this is carried fully.Depend on the degree that this chest of carrying tilts with respect to vertical direction, the center of gravity of the chest that this is carried will be by comprising the perpendicular with the pivot center of the dilatory wheel 16 of ground engagement, and, depend on the degree that this chest of carrying tilts with respect to vertical direction, center of gravity will be left and comprise the perpendicular of the pivot center of dilatory wheel 16 separately.

Higher people will make this chest of carrying move less angle of inclination relative to described perpendicular, and highly shorter people will make this chest of carrying with respect to bigger angle of described perpendicular inclination, in this case, center of gravity will be moved further leaves described perpendicular, and, will increase the downward active force that acts on the handlebar stem 18 significantly.

If at this moment the user loosens or unclamp the hand that his or his holds with a firm grip on handlebar stem 18, this chest of carrying just will drop with the surface of ground engagement on, may damage the stored content of this chest of carrying.

Relating to size, weight and being used for is transported under the situation of needs of additional article, the present invention propose to add or replace add can with the

wheel

22 and 24 of ground engagement, these wheels are installed on one of them wall of this chest of carrying.

As shown in Fig. 1 and 2,

wheel

22 and 24 is installed on the antetheca 26 of chest.Equally, handlebar stem 18 and its telescopic supporting leg 20 are installed in the outside of this chest of carrying, on the relative back wall 28 of chest, have in any mode easily such as the leg 20 that hinge is housed at mark 30 places, make that whole handlebar stem and telescopic leg assembly can be with respect to the body rotations of this chest of carrying 14, as illustrated in Figure 2, by with back wall 28 position overlapped rotations to position to stretch at an angle with back wall 28.The hinge installed part 30 of handlebar stem and telescopic leg assembly 20 can be positioned at an end wall 32 of contiguous this chest of carrying easily, back wall 28 can be provided with the slide fastener lid 34 that can remove, makes and can be loaded into the article that will carry in this chest of carrying.

This chest of carrying can be provided with a side grip 36 easily, it carries this chest or handles this chest with hand except being used to, it also can be used to make this chest reorientation to a position of carrying, in this position,

wheel

22 and 24 and the supporting ground engagement.

Refer again to the embodiment of Fig. 1, when the telescopic leg 20 of handlebar stem 18 and its supporting is in the state of withdrawal, can use one or more handles 36 that this chest of carrying is tilted on the leg 12 with ground engagement, reduce engaging of antetheca 26 and the ground 10 of supporting.Then, start a release button 38 relevant, handlebar stem 18 is unclamped by its end wall 40 releasable engagement states with this chest of carrying with the telescopic leg 20 of handlebar stem 18 and its supporting.As illustrated in Figure 2, make handle 18 upwards rotations subsequently, cross up the back wall 28 of this chest of carrying, in order that make the position of handlebar stem be positioned to be prepared for the orientation of dilatory this chest of carrying on ground 10, adapt to

wheel

22 and 24 with ground engagement.

The antetheca 26 of this chest of carrying 40 can be made by a kind of deformable material easily, such as common in present technique, perhaps, in addition, whole back wall can be made such as plastics, the metal of molding by material firm on a kind of structure, perhaps can use the deformable outer covering material of a kind of glued board substrate support.If use deformable material to form back wall 26, so, when the position of this chest be level be used for drawing the time, the possibility that exists this back wall outwards to swell.

If this outside change of antetheca 26 is curved to be enough to make the central kiss the earth 10 of antetheca, in dilatory process, the central authorities of antetheca 26 may be spoilt, and are perhaps additionally damaged.Take place for fear of this situation, can use the castor 40 at a center, best, its form is the rotatable ball of omnirange, and it is installed on the antetheca 26, is positioned at the center of this antetheca 26.

As shown in Figure 1A, the height of the aspect ratio of this center steering wheel 40 and the wheel 22 of ground engagement and 24 is short, as shown by vertical curve 43.At the height of maximum, the height of center steering wheel 41 (illustrating with dotted line) can equal and the wheel 22 of ground engagement and 24 height.

Also have, if antetheca 26 is made by a kind of deformable material, it also is desirable in the luggage case that a framework is incorporated into, make this framework provide for the wheel 22 of ground engagement and 24 supporting, also take turns 40 supporting be provided for center steering.

Easily, and in order to reduce the height of this chest of carrying, the framework that supporting

wheel

22 and 24 also supports center steering wheel 40 can be the form of X framework, as among Fig. 1 with dotted line 42 shown.

With one of the wheel group 22 of ground engagement and 24 can situation such as wheel 22 about fixing axis rotation under, other wheel 24 can be the form of castor, they can have an angle with respect to wheel 22.Can will make this chest of carrying under the control of the telescopic leg 20 of handlebar stem and its supporting, on ground 10, to do omnidirectional motion about the combination of the wheel of a fixing axis rotation and castor.

Fig. 6 shows an embodiment, has wherein only used a gyroscope wheel 51, its center between two angles of the main wall of chest, have simultaneously two can be about the wheel 53 of fixed axis rotation.This layout of wheel also will make this chest of carrying can do omnidirectional motion on the ground, be similar to the motion of allowing with the combination of the wheel 22 of ground engagement and 24, under the sort of situation, wheel 22 can rotate about fixed axis, and other wheel 24 is a gyroscope wheel.

Fig. 6,6A, 6B and 6C also show the various views of one group of support arrowband 55, this arrowband makes the user to remain on a motionless position to luggage case, make luggage case remain on a complicated especially state simultaneously, such as on an escalator, (seeing Fig. 6 B), perhaps on the stair that rise or descend.

Replace telescopic leg 20, leg 20 can be the pipe of regular length, and hinge 30 is hinged to them on the end wall 32 of chest in their ends relative with handlebar stem 18.

The structure of describing about Fig. 1 and 2 makes the position of leg 20 of handlebar stem 18 and its supporting in the outside of the chest of carrying 14.The advantage of even now provides the internal capacity of the maximum of the chest of carrying, still, also can carry out inside and install, such as shown in Fig. 3 and 4 like that.

In Fig. 3 and 4, handlebar stem 18 and its relevant telescopic leg are not the antethecas 26 that is positioned at contiguous this chest of carrying, but are positioned at the inside of this chest of carrying, and contiguous back wall 28.Also as illustrated, can replenish firm handlebar stem and leg layout with a dilatory arrowband 44, or with this arrowband 44 eliminations and alternative firm handlebar stem and leg device, in a pocket 46 that can leave this arrowband in when not required on the sidewall that is fastened to this chest of carrying.

For in chest and the location of the leg 20 that can sleeve ground stretches of back wall 28 guiding of contiguous chest have such requirement: when leg 20 withdrawals, leg 20 can only be parallel to back wall 28 stretching, extensions of chest in the mode of traditional chest of carrying.In order to make handlebar stem upwards to be orientated with respect to ground 10, can be hinged on leg 20 separately at 48 places is connected on the shank 50, this shank can slide in the body of chest, and, when the leg 20 of main handlebar stem 18 and its supporting stretches in by chest, can be fixed on these shanks in the body of chest.

The shielding part 119 of a protection usefulness can be protected telescopic separately leg 20 near hinge 48, make it unlikely owing to damaging with curb or the collision of other barrier in traveling process, sees Figure 18.This guard shield part 119 comprises portion's section 123 of the tunnel-shaped of two L shaped vertical portion sections 121 and a level, and when leg 20 was withdrawn fully, vertical portion section and horizontal part section all leaned against on the corresponding surface of luggage case.Vertical portion section 121 and horizontal part section 123 are coupled together by a hinge 125 that spring is housed; make that vertical portion section 121 can be with respect to 123 rotations of horizontal part section on angle direction; under the running status that full extension is opened, can protect telescopic leg 20 around hinged areas so effectively, and can not hinder when needing these legs 20 easily to rotate significantly about their hinge.Equally, shielding part 119 can as in the process that when luggage case crosses a curb, raises or tilt or raise simultaneously and the process that tilts in one place retainer.

Fig. 5 shows the chest shown in Fig. 3 and 4, and it has built-in telescopic leg 20 and handlebar stem 18, and this figure shows equally at least a chest 39 is overlayed possibility on the top of chest 41.Overlaying among Fig. 5 by using a flexible rope 43 to realize that this rope ties together two chests 39,41 tightly like this, its two ends are bundled on traditional handle 36 of chest 41.

Fig. 5 A shows two kinds of other handles to 5E and is attached to method on the chest that is stowed more than a chest.Fig. 5 A and 5B show the system that adopts a band 59 and clasp 61, and each chest is connected on another chest on it.Fig. 5 C, 5D and 5E show the system that adopts a flexible rope 63, this rope twines about any part in two parts of nethermost chest 65, a traditional handle 67 or an extensible and retractible handle 69 of being used to carry this chest 65 are stretched by traditional handle 67, and are substantially perpendicular to this handle.Each chest 71 that stacks in the body at chest will have traditional handle and one of extensible retractible handle again identical sub-assembly, make that it can be as the chest that stacks the bottom in the body at chest.

In Fig. 7 to 14, handlebar stem 18 and its supporting leg 20 are substituted by a straight member 52, and this straight member comprises 54,56 and handles 58 of a plurality of telescopic sections.The handle shown in Fig. 6 to 12 60 shown in Figure 6 be its state in this chest of carrying 14 of being retracted into fully, straight member 52 and its relevant end segments 50 are inclusive in the tube-like piece 62, this tube-like piece is positioned at this chest of carrying 14, and is attached on the back wall 28.At this state of withdrawing fully, a latch 64 is locked in its position with handle 60, this latch at one end installs on the handle 58 with pin, and seat is placed in the groove 66 in the protuberance 68, this protuberance and tube-like piece 62 are as a whole, and are installed to regularly on this chest of carrying 14.Spring 74 is firmly held in latch 64 in the groove 66, this spring makes 72 biasings of first button, second button 69 that spring 67 is housed installs to latch 64 usefulness pins on the pitman arm 73, this pitman arm is assemblied between the downside 75 of protuberance 68 and handle 58, and contacts with this downside 75 with this protuberance.Straight member 52 is passed in a hole 70 in the protuberance 68.At the top that is positioned at handle 58 on first button 72 above the straight member 52 downwards by 71, make latch 64 unclamp 77 by groove 66, make telescopic the section 56 of winning can be stretched over its whole length.

Pitman arm 73 prevents that straight member 52 from further extending, this arm stretch long enough, stop the top of a wall of second scalable section 54 to be stretched, still, the curtailment that this arm stretches is to contact with first scalable section 56.At this state, have only first scalable section 56 to stretch, can only be with attitude dilatory this chest 14 on its dilatory wheel 16 that tilts with respect to area supported by vertical direction.

In order to stretch second scalable section 54, second button 69 is depressed 76, make pitman arm 73 raise 78.Figure 12 A shows a kind of exemplary details of device, thereby when second button 69 is depressed 76, can make pitman arm 73 raise 78.When second button 69 was depressed 76, the bight 65 of protuberance 68 made pitman arm 73 raise 78.When unclamping second button 69, the torsionspring 67 that centers on the pin 79 that connects second button 69 and pitman arm 73 works, and makes pitman arm 73 be returned to the position of level.

Figure 12 B shows another exemplary details of a kind of device, thereby when second button 69 is depressed 76, can make pitman arm 73 raise 78.Figure 11 B shows pin 79, and it is attached to pitman arm 73 on second button 69, also shown is the hole 81 in second button 69 and pitman arm 73, and pin 79 passes this hole 81.Cam on pin 79 and hole 81 83,85 is transformed into the downward motion of second button 69 the anticlockwise rotation of pin 79 when being depressed respectively, the pitman arm 73 that is installed on the pin 79 is raise, and when it being unclamped after depress, the motion that makes progress of second button 69 is transformed into the clockwise rotation of pin 79, the pitman arm 73 that is installed on the pin 79 is reduced.Second pin 87 or other fixture are fixing with respect to pitman arm 73 pin 79.

Another kind of device has been shown in Fig. 8 A, has used latch 64 for this device.A bar 78 is connected on the spring 74 below first button 72.When depressing and unclamp first button 72, this bar 78 in the vertical direction in first scalable section 56 moves up and down.This bar 78 be suitable for be installed in first scalable section 56 in 82 contact near the free-ended pipe of bar 78.Pipe 82 is equipped with a Ball support spare 84 of being setovered by spring.When first button 72 not being depressed, bar 78 is placed in the hole 86 in second scalable section 54 84 of this Ball support spares with contacting of pipe 82, therefore, first scalable section 56 is pinned, and it can not be moved by in the vertical direction.When first button 72 was depressed, because bar 78 no longer contacts with pipe 82, Ball support spare 84 can move apart perforate 86, and scalable the section 56 of winning can be stretched by in the vertical direction.A plurality of holes 86 can be set in second scalable section 54, making can have a plurality of " keyed ends " for it when first scalable section 56 stretches, this is because when the bar 78 with pipe 82 contacts moves straight up with first scalable section 56 that bar 78 wherein is housed, and Ball support spare 84 is owing to its spring biasing is advanced seat in each hole 86.By under each such lock condition, depressing first button 72, Ball support spare 84 will become by it throw off in the seat hole 86 of putting, scalable the section 56 of winning can be stretched further.Another kind of structure is disclosed in the common pending application sequence number No.09/005313 that submits to our 9 days January in 1998, this structure has been described in this section, as a reference incorporated this application in this application, particularly with reference to 18 page of 17 row of this common pending application to 19 page of 20 row and Fig. 7 A and 7B.

The structure of second button 69 is with shown in Figure 8 and described identical with reference to this figure, and the elbow spare that difference just is attached on the base flange 90 of second button 69 is different with lever apparatus 88.This elbow spare and lever apparatus 88 are loaded with a pipe 92, and this pipe is equipped with a Ball support spare 94 of being setovered by spring.When second button 69 being depressed or unclamp, bar 96 in the vertical direction respectively moves between tube-like piece 62 and second scalable section 54 downward or upward.When second scalable section 54 do not trail, 94 of Ball support spares were placed in one of hole 86 in second scalable section 54, its locking effect are added on the locking effect of previously described pitman arm 73.After first scalable section, 56 full extension are opened, press second button 69 that pitman arm 73 will be raise, as previously described, and Ball support spare 94 will be thrown off by its hole, location 86, like this, make second scalable section 54 to stretch.Similar with the top possibility of in Fig. 8 A, pointing out for first scalable section 56, along the length of this section a plurality of holes 86 are arranged in second scalable section 54 neutralization, can on the different length of the stretching, extension of second scalable section 54, introduce a plurality of " keyed ends ".If introduce so a plurality of holes 86 in second scalable section 54, when second scalable section 54 trailed, Ball support spare 94 was put in seat in each hole 86, and this section is repeatedly pinned.By under each such lock condition, depressing second button 69, Ball support spare 94 will become by it throw off in the seat hole 86 of putting, make second scalable section 54 to stretch further.

As can reasoning out by top description and accompanying drawing, can use 86 in hole identical in second scalable section 54 to put two Ball support spares 84,94, therefore, these holes are as for the two a plurality of " keyed ends " of first scalable section 56 and second scalable section 54.Fig. 8 A to the device shown in the 8C make the lockable extension degree of handle 60 and hole 86 number as many, these holes are located in the similar device of device shown in Figure 8, in other words, have first scalable section 56 full extension, and second scalable section 54 still there is not the state that stretches.

For the device of Fig. 8 or Fig. 8 A layout to 8C, when second scalable section, 54 full extension are opened, relevant end segments 50 will partly be exposed to the outside of chest 14.

Figure 14 shows by a bearing type hinge 98 and is connected to end segments 50 on second scalable section 54, be placed on when chest 14 on its back wall 28, when being placed on the area supported, this hinge restriction handle rotates to the rotation 100 on a plane of the back wall 28 that is substantially perpendicular to the chest of carrying 14, and, also when chest 14 was placed on its back wall 28, this hinge restriction handle rotated to the rotation 102 for a horizontal plane plane substantially the same with the inclination of handle 60.Therefore, this hinge 98 makes that handle 60 can have maneuvering capability widely when chest 14 is placed on its back wall 28, and does not allow handle 60 to rotate about its longitudinal axis 104.This maneuvering capability widely of handle 60 makes the user guiding this chest 14 on any direction basically, and these directions comprise the crooked route that changes around various radius of curvature.

In addition, Figure 16 shows by bearing type hinge 104 and is connected to end segments 50 on second scalable section 54, be placed on when chest 14 on its back wall 28, when being placed on the area supported, this hinge restriction handle 60 rotates to the rotation 100 on a plane of the back wall 28 that is substantially perpendicular to the chest of carrying 14.

Bearing type hinge shown in Figure 16 is provided with a locking mechanism alternatively, makes releasably " to fix expandable handle 101 " on various position of rotation, sees Figure 17.This locking mechanism is included in a series of lock pins 103 on the end segments 105, and when expandable handle 101 full extension, this section still remains in the chest.The Ball support spare 107 (seeing Figure 17 A) that spring is housed is fitted into into one of these lock pins 103, and handle 101 is locked in a specific angle position.Yet, when the user applies a suitable active force that is approximately perpendicular to handle 101, handle 101 to be removed by such latched position, this is because its spring of compression will force the Ball support spare 107 that spring is housed to leave its lock pin 103.

Bearing type hinge shown in Figure 16 also is provided with a curved spring 109 (seeing Figure 19 A) or other equality unit alternatively, guarantees that handle 111 will return vertical or upright position if released.

At last, alternatively one second hinge 113 (seeing Figure 19 A) is added on the bearing type hinge shown in Figure 16, make handle in the identical plane that indicates about the bearing type hinge 98 shown in Figure 14, to rotate.Yet, in addition, such handle 111 also can be provided with the pin connecting portion 115 that is connected on the handle 117, (seeing Figure 19), even make the remainder of working as handle 111 rotate in its plane that is inclined relative to horizontal, handle 117 can remain on a non-rotary state.

Can be designed in the wheel 106 on the main wall 108 of luggage case 110 at least one, according to user's requirement, make it can be withdrawn into luggage case 110 main wall 108 surface 112 below, otherwise wheel will be stretched out (seeing Figure 20 and 21) by this surface.

In the special embodiment shown in Figure 20, at least one wheel 106 is remained on the state of withdrawal, thereby make that the basal surface 114 that each wheel 106 just is installed in housing 116 wherein flushes with the surface 112 of the main wall 108 of luggage case 110 when the extensile handle 118 of luggage case 110 is in the state of withdrawal fully.A bar 120 that has a tongue 122 remains on the state of withdrawal to each wheel 106, and this tongue 122 is assembled in the hole 124 of housing 116.Tongue 122 and hole 124 restriction housings 116 and wheel 106 since be equipped with spring hinge 126 and by luggage case 110 to inner rotary, this hinge makes by wheel 106 rotations of the housing 116 of attaching and installation, leave a recess 128 in the luggage feather cockscomb 110, when withdrawal, housing 116 and wheel 106 just fit in this recess.

A spring 130 that stretches round the part of the length of bar 120 and along this part 124 is setovered every bar 120 towards the hole, by the main wall 108 of luggage case 112 with by the projection 132,133 of recess 128 and the flange 135 on the bar 120 this spring 130 is fixed on its position respectively.First end of one cables 134 is attached on the every bar 130, and this cable 134 passes a guiding tube 137 and is stretched over a installed part at second end, is stretched on the U-shaped spare 136.And then this U-shaped spare 136 is attached on the draw ring 141 by a cables 139, this draw ring is positioned at luggage case 110, its position makes when extensile handle 118 is withdrawn fully, the handle 143 of extensile handle 118 covers this draw ring 141, like this, make that the user can not be near this draw ring 141.Yet in case extensile handle 118 trails at least in part, the user can apply a stretching action power 138 with hand on this draw ring 141.

This stretching action power 138 works by the system of cable 139, U-shaped spare 136 and cable 134, overcomes each bias spring 130, makes 120 withdrawals of every bar, makes tongue 122 no longer be positioned at hole 124.This withdrawal action of bar 120 and tongue 122 is freely rotated the wheel 106 of housing 116 and attaching under the momentum of the hinge 126 of being setovered by spring, run into the surface 112 of the main wall 108 of luggage case 110 up to housing 116, and be maintained on this surface 112.At this state, wheel 106 can contact with an area supported, makes to push away luggage case 110 with handle 118, makes that its main wall 108 is parallel with this area supported.On the contrary, the state of the withdrawal of wheel 106 previously discussed makes and can store this luggage case 110 more easily, and this is because the flat surface 112 of main wall 108 can be owing to running status lower house 116 and not stretching out of wheel 106 and destroyed.

Must withdraw by running status with hand realization wheel 106 and housing 116 by the user.The user should overcome the bias power that the hinge 126 of being setovered by spring is applied, and rotates each housing 116 and wheel 106, and they are got back in the luggage case 110 in their recesses 128 separately.When housing 116 and wheel 106 its retracted position in recess 128 that reaches them, tongue 122 each housing 116 and wheel 106 " snap lock " in its position.

Following effect appears in this " snap lock ".When the inside 141 of recess 128 was not full of by housing 116 and wheel 106, tongue 122 was stretched out by the hole 142 of recess 128.It is because when not having stretching action power 138 to act on the cable 134, spring 130 barres 120 are towards recess 128 biasings that this state that puts in the inside 141 of recess 128 of tongue 122 occurs.Flange 135 is by contacting the biasing of limit rod 120 towards recess 128 with recess 128, and as previously described be used for fixing spring 130 like that.When housing 116 rotated into recess 128, the outer surface 145 of housing 116 contacted with tongue 122, and it is temporarily applied active force inwards, towards recess 128, overcame the bias power of spring 130.Yet when advancing recess 128 because housing 116 changes, when making tongue 122 reach in the hole 124 in the housing 116, the bias power of spring 130 will make tongue 122 snap in the hole 124, like this, the wheel 106 of housing 116 and attaching will be locked in its position.

Figure 24 and 25 shows another embodiment that is used for retractible wheel assembly 144.With the main distinction of previously described layout is that the part that wheel 147 and housing 149 are limited in retracted mode is changed, and becomes a part that can be pivoted 146 by previously described bar 120.This part that can be pivoted 146 restriction wheel 147 and housings 149, it is to realize these restrictions by a tongue 148 that passes hole 150 assemblings in the recess 152 and a hole in housing 149 154, is similar to the description of front.

Yet the part 146 that can be pivoted is roughly cross in the plane, and can be attached to it on the luggage case 158 in 156 with being pivoted.The attaching that can be pivoted is positioned on the arm 160 of this part that can be pivoted 146, the tongue 148 of transversal the part 146 that can be pivoted, and by a spring 164 second arm 162 of this part that can be pivoted 146 is attached on the luggage case 158.

When pulling installs to rope 166 on the relative end 168 of the part 156 that can be pivoted and tongue 148, by being similar to previously described process, the part 146 that can be pivoted is pivoted about pivot mounting 156, make tongue 148 no longer pass hole 154 (seeing the dashdotted shape 170 among Figure 20, the position after being pivoted of its representative part 146 that can be pivoted).When pulling force no longer is applied on the cable 166, spring 164 works, make to be pivoted on the opposite direction of the pivot direction of part 146 this part that can be pivoted 146 the time that can be pivoted that this pivot rotates and makes tongue 148 be in the position of passing hole 154 once more with tow 166.Be similar to previously described wheel arrangement, the inside 172 of recess 152 must be empty, makes spring 164 to be pivoted a position passing hole 154 to tongue 148 conversely.This position of tongue 148 is stretched out by recess 152, enter the inside 172 of the sky of recess 152, this will guarantee when making housing 149 and wheel 147 withdrawals with hand afterwards, housing 149 and wheel 147 " snap lock " position in withdrawal, this " snap lock " occurring is to realize by a process that is similar to the process of describing about the wheel arrangement of front.

Should be noted that the wheel at the shown center at main wall that is used for retractible wheel arrangement is exemplary, it can be easily by substituting at the roller ball shown in other appended figure.

Also have, disclosedly be used for that retractible wheel remained on the position of withdrawal and be the device that they are unclamped by this state exemplary, the those of ordinary skill that present technique is familiar with can easily dream up other device, and they are also in the scope of appended claim.

For example, Figure 26 shows and is used for retractible wheel is remained on the another kind of device of retracted mode, it comprises the main wall of a molding of a chest or other firm main wall 174, and retractible gyroscope wheel 176 and fixing wheel 177 are installed on this main wall.Firm framework 178 remains on the position of withdrawal to gyroscope wheel 176, and when they were in the state of withdrawal, this framework was releasably connected on all three gyroscope wheels 176.

When stretching handle 180 in the process that the telescopic leg that makes the handle (not shown) stretches, this the firm framework 178 that is connected on the handle moves on identical direction, and this framework 178 also is connected on the sliding part 182 of motion in the inner tracks 184 of molded item 174.When firm framework 178 moves on the direction identical with handle, it unclamps retractible gyroscope wheel 176, the hinge that spring is housed 186 of connecting plate 188 pushes away these and takes turns, they are popped by the hole (not shown) in the molded item 174, on the plate 188 retractible gyroscope wheel 176 is being installed on the molded item 174.As for the situation of the disclosed retractible wheel embodiment in front, in case wheel trails, the user will make the wheel withdrawal with hand.

Figure 27 shows a molded item or other firm main wall 190, and it is not a retractible wheel main wall mounted thereto shown in Figure 26.Like this, a chest can have the Shang Zhubi and the Xia Zhubi of such molding, has sidewall, and these sidewalls can be deformable or also be firm, depend on producer's selection.

Figure 28 to 30 shows another embodiment that is used for retractible wheel.This embodiment makes wheel 192 automatically to withdraw, and also can automatically trail.As shown in the figure, this is realized by a tooth bar 194 and pinion 196 mechanisms.Tooth bar 194 is to cut out in the bar portion 195 of the end segments 198 that is connected to handle, even end segments 198 remains in the chest on the total length of handle, end segments 198 remains on the chest inboard by the ratchet 200 in this end segments 198, and this ratchet is contacted by spring-loaded Ball support 202 on the total length of handle.

The automatic stretching, extension of gyroscope wheel 192 and regain following mode and produce.When the leg 204 of handle was opened near full extension, tooth bar 194 and pinion 196 engagements made its rotation.Pinion 196 is attached on the spring-loaded hinge 206, and hinge 206 is attached to again on the plate 208 that gyroscope wheel 192 is installed on it.The spring of this spring-loaded hinge 206 applies bias voltage like this, makes in the chest that gyroscope wheel 192 keeps when pinion 196 does not rotate in punctured position.The rotation of pinion 196 is rotated hinge 206 and plate 208, makes gyroscope wheel 192 stretch out the outside of chest.When the state of being opened by its full extension when leg 204 beginning of handle injected cabinet interior, process is reverse carried out.Tooth bar 194 makes pinion 196, hinge 206 and plate 208 rotations once more, but the direction during leg 204 stretching, extensions of direction and handle is opposite, and gyroscope wheel 192 is withdrawn in the chest.

Though the device shown in Figure 28 to 30 is only at a retractible gyroscope wheel 192,, be the minute surface symmetry for device and shown device at the retractible gyroscope wheel in other bight of chest.Also have, if there is a gyroscope wheel at the center at the main wall of chest, also can be easily it be made into and can automatically stretches and withdraw, this is by using another hinge that spring is housed and rack and pinion device, this device is similar at the device shown in Figure 28 to 30, but has added another root bar, and it has the tooth bar that cuts out therein, it is attached to the opposite side of end segments 198, transversal in the horizontal direction bar 195.

Alternatively, as shown in FIG. 1, also can be by can being attached to antetheca 26 on the body of the chest of carrying 14 being connected of slide fastener with its band with pulling down, as illustrating with mark 34 among Fig. 1.If this will make in a kind of special use or wish change, repair or clear up its surface and do not need under its situation, antetheca 26 can be on being contained in it can with the wheel 22 of ground engagement and 24 and center steering wheel 40 integrally remove by the chest of carrying.If desired, can provide inlet by the lid that is positioned at the band slide fastener below the antetheca 26 to the inside of the chest carried.In addition, the lid of this band slide fastener can be arranged on the back of the body surface 28 of the chest of carrying, and in this case, also handle 18 and its leg 20 can be made and can be removed on the body by the chest of carrying.

Multiple other remodeling can be arranged for person skilled in the art scholar, and these remodeling are included in the scope of appending claims.

Claims

1. the luggage case that can draw, it comprises a body, this body has a main antetheca, a main rear wall and stretches and support with separating the sidewall of described main antetheca and rear wall at the edge of described main antetheca and rear wall; Its improvement comprises:

Being installed in wheel on one of described main antetheca and main rear wall makes and can draw described luggage case of drawing on the ground, wall with described wheel bearing, this wall be suitable for being placed near described ground and with described wheel bearing on described ground, at least one can be withdrawn in the described luggage case of drawing in the described wheel, and that described in described main antetheca and the rear wall is a firm basically single piece.

2. according to the luggage case of drawing described in the claim 1, it is characterized in that, be suitable for described at least one retractible wheel being unclamped by the retracted mode in described luggage case of drawing with a device that applies stretching action power, the described device that applies stretching action power releasably be attached to described at least one can described erecting device by the wheel of described that wall withdrawal in described main antetheca and the rear wall on.

3. according to the luggage case of drawing described in the claim 1, it is characterized in that, described at least one can comprise a device by the described erecting device of the wheel of described that wall withdrawal in described main antetheca and the rear wall with the spring biasing, be used for making described at least one retractible wheel rotation.

4. according to the luggage case of drawing described in the claim 1, it is characterized in that, by releasably being installed on the device that applies stretching action power, described at least one retractible wheel is remained on retracted mode in the described luggage case of drawing.

5. according to the luggage case of drawing described in the claim 1, it is characterized in that, be suitable for described at least one retractible wheel being unclamped by the retracted mode in the described luggage case of drawing with a device that applies stretching action power, the described device that applies stretching action power rotates a device, this device be used for making described at least one can rotate by the described erecting device of the wheel of described that wall withdrawal in described main antetheca and the rear wall.

6. according to the luggage case of drawing described in the claim 5, it is characterized in that, be used for making described at least one can comprise a rack-and-pinion mechanism by the described device of the described erecting device rotation of the wheel of described that wall withdrawal in described main antetheca and the rear wall.

7. the luggage case that can draw, it comprises a body, this body has a main antetheca, a main rear wall and stretches and support with separating the sidewall of described main antetheca and rear wall at the edge of described main antetheca and rear wall; Its improvement comprises:

Being installed in wheel on one of described main antetheca and main rear wall makes and can draw described luggage case of drawing on the ground, wall with described wheel bearing, this wall be suitable for being placed near described ground and with described wheel bearing on described ground, described wheel be installed in described before and after on described that wall in the main wall; With the door handle device on described luggage case of drawing, make and to draw.

8. according to the luggage case of drawing described in the claim 7, it is characterized in that the main wall that does not support wheel is suitable for holding at least one additional luggage case thereon.

9. according to the luggage case of drawing described in the claim 8, it also comprises fastener, so that additional luggage case releasably is fastened on the luggage case that can draw.

10. according to the luggage case of drawing described in the claim 9, it is characterized in that described fastener is clasp and bar belting.

11. the luggage case of drawing according to described in the claim 9 is characterized in that, described fastener is flexible cable.

12. according to the luggage case of drawing described in the claim 8, it is characterized in that, each comprises that all one is carried handle and an extensible retractible again handle described at least one additional luggage case and described luggage case of drawing, and this handle is carried the handle stretching, extension and is withdrawn into described carrying in the handle by described.

13. the luggage case of drawing according to described in the claim 7 is characterized in that, the number of described wheel is three.

14. the luggage case of drawing according to described in the claim 7 is characterized in that, at least one fixed narrow is installed on the wall of described supporting wheel.

15. according to the luggage case of drawing described in the claim 7, wherein, described door handle device comprises a telescopic handle, make that described telescopic handle can be with respect at least one hinge of described luggage case rotation of drawing, and a mechanism, this mechanism makes can releasably pinning described telescopic handle with described rotation in various degree.

16. according to the luggage case of drawing described in the claim 15, it is characterized in that, make to comprise at least one lock pin and the Ball support spare that spring is housed with the described mechanism of in various degree described telescopic handle releasably being pinned of described rotation.

17. according to the luggage case of drawing described in the claim 7; it is characterized in that; described door handle device comprises a telescopic handle; make that described telescopic handle can be with respect at least one hinge of described luggage case rotation of drawing; and guard shield part; this shielding part is attached on the described luggage case of drawing, and near the zone described at least one hinge covers described at least one hinge and described telescopic handle.

18. according to the luggage case of drawing described in the claim 7, it also comprises a shielding part, this shielding part is arranged on the leading edge of the wall that supports wheel side by side.

19. according to the luggage case of drawing described in the claim 7, it is characterized in that, described luggage case of drawing also comprises a telescopic handle, make that described telescopic handle can be with respect at least one hinge of described luggage case rotation of drawing, and device, this device is used for making described telescopic handle when described telescopic handle fully trails basically and when being applied on the described telescopic handle without any active force except the weight of described telescopic handle, and described telescopic handle remains on a position that is substantially perpendicular to described ground.