CN202375297U - Large-wheel luggage box capable of climbing footsteps - Google Patents
Large-wheel luggage box capable of climbing footsteps Download PDFInfo
- Publication number
- CN202375297U CN202375297U CN201120521631XU CN201120521631U CN202375297U CN 202375297 U CN202375297 U CN 202375297U CN 201120521631X U CN201120521631X U CN 201120521631XU CN 201120521631 U CN201120521631 U CN 201120521631U CN 202375297 U CN202375297 U CN 202375297U
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- China
- Prior art keywords
- pull rod
- wheel
- luggage case
- pull bar
- climbing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a large-wheel luggage box capable of climbing footsteps, comprising a box body, a pull rod and two wheels, wherein the contractile pull rod is arranged on the top of the box body, the two wheels are respectively positioned on both sides of the bottom of the box body, a rod arm of the pull rod is in an arc shape, the head tangent and the tail tangent of the pull rod are vertical, and the diameter of each wheel is 20-30cm. The large-wheel luggage box has the advantages that the height of a footstep is generally 13-20cm, so that the large-wheel luggage box can easily climb the footsteps with the large wheels of 20-30cm. The pull rod is in a circular-arc wedging design, and the head tangent and the tail tangent of the pull rod are vertical, so the box body keeps vertical and uprightly walks all the time when a user pulls the luggage box to walk, the user does not need to additionally apply an upward pull force on the pull rod, so that the user saves more force, and the large-wheel luggage box is more convenient to use and the burdens on the journey are reduced.
Description
Technical field
The utility model relates to a kind of bull wheel luggage case of climbing step, belongs to case and bag and other industrial products production process technical fields.
Background technology
Luggage case kind in the market is a lot, but sums up the in the majority of brace formula.But the pull bar of cable-stayed type luggage case is on the extended line of casing one side usually.In drawing process, casing tilts, and the people also must give holding power that makes progress of luggage case when giving pulling force of luggage case.So people can be very hard when using pull-type luggage case, in the travelling process, also can very feel exhausted easily.Simultaneously, present luggage case has used the less wheel of diameter mostly, and when running into stair or step, the wheel of luggage case is because too little and speeling stairway easily.And, hale the damage that luggage case can cause casing.So stair activity and step also become a big drawback of present luggage case, particularly to old man and weak people.
Summary of the invention
The purpose of the utility model provides a kind of labour-saving bull wheel luggage case of climbing step.
In order to achieve the above object; The technical scheme of the utility model has provided a kind of bull wheel luggage case of climbing step; Be made up of casing, pull bar, 2 wheels, contractile pull bar is located at the casing top, and 2 wheels are located at the bottom half both sides respectively; The lever arm of pull bar is an arc, and the head of pull bar lever arm is vertical with the tangent line of tail.
The diameter of wheel is 20cm-30cm.
Pull bar is a U-shaped.
Traditional cable-stayed type luggage case adopts the less wheel of diameter mostly.And the height of step is generally between 13-20cm, and the utility model adopts the bull wheel of 20cm-30cm to be easy to climb step.Traditional cable-stayed type trunk draw bar is on the extended line of casing one side usually, but the pull bar of the utility model adopts circular arc to agree with design, and drawhead becomes vertical relation with the tangent line of tail.So in pulling luggage case walking process, it is vertical that casing itself keeps, and walks upright all the time, the user then needn't give pull bar a pulling force that makes progress more, makes the user more laborsaving, and it is more convenient to use, and has alleviated the burden in the route.
The utility model has the advantages that:
1. be easy to climb step;
2. more laborsaving, it is more convenient to use, and has alleviated the burden in the route.
Description of drawings
Fig. 1 is a kind of sketch map of climbing the bull wheel luggage case of step;
Fig. 2 is a kind of side schematic view of climbing the bull wheel luggage case of step;
Fig. 3 is a kind of speeling stairway sketch map of climbing the bull wheel luggage case of step;
Fig. 4 is a kind of sketch map of going downstairs of climbing the bull wheel luggage case of step;
Fig. 5 is the drawhead force analysis sketch map of traditional cable-stayed type luggage case;
Fig. 6 is a kind of drawhead force analysis sketch map of climbing the bull wheel luggage case of step;
Fig. 7 agrees with technological sketch map for a kind of pull bar of climbing the bull wheel luggage case of step.
The specific embodiment
Specify the utility model below in conjunction with embodiment.
Embodiment
Like Fig. 1, shown in Figure 2, a kind of bull wheel luggage case of climbing step is made up of duricrust casing 1,2,2 wheels 3 of pull bar.Casing 1 adopts the design of free-stream line type radian.Pull bar 2 is a U-shaped, and 2 lever arms of pull bar 2 are contained in the both sides, top of casing 1 respectively, and pull bar 2 can divide three sections to stretch.The head of pull bar 2 lever arms is vertical with the tangent line of tail.2 wheels 3 are fixed on casing 1 two bottom sides.The diameter of wheel 3 is 30cm.
As shown in Figure 7, stretching on the receipts problem of chest pull bar 2, three joint pull bars are on the circumference of a great circle, so can very perfectly agree with and shrink.
Like Fig. 3, shown in Figure 4, the user is when carrying the luggage case speeling stairway, and the height of the size of wheel 3 and one-level step adapts, and makes it more easily to rotate, and reduces used pulling force and drives upwards speeling stairway of casing 1; When going downstairs, wheel 3 adapts with step, and special radian design is arranged at casing 1 bottom simultaneously, reduces the damage of step edge to casing 1.
Like Fig. 5, shown in Figure 6, the pull bar of traditional draw-bar box is on the extended line of casing one side usually, receives vertically upward power F1 and level power F2 forward at the drawhead place.And the pull bar 2 of this luggage case adopts circular arc to agree with design, only receives a level power F forward at the drawhead place.Comparatively speaking the utility model and common cable-stayed type draw-bar box are that hand makes the user more laborsaving to a pulling force that makes progress of chest when being to reduce walking, and it is more convenient to use.Carry chest when walking the user,, combine with its unique force way again, so the state of the time almost being kept upright during the chest walking because the curvature of the inclination radian of pull bar 2 and retractility, casing 1 can adapt with the user.
Claims (3)
1. the bull wheel luggage case that can climb step; Form by casing (1), pull bar (2), 2 wheels (3); Contractile pull bar (2) is located at casing (1) top, and 2 wheels (3) are located at casing (1) two bottom sides respectively, it is characterized in that; The lever arm of pull bar (2) is an arc, and the head of pull bar (2) lever arm is vertical with the tangent line of tail.
2. a kind of bull wheel luggage case of climbing step as claimed in claim 1 is characterized in that the diameter of described wheel (3) is 20cm-30cm.
3. a kind of bull wheel luggage case of climbing step as claimed in claim 1 is characterized in that described pull bar (2) is a U-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120521631XU CN202375297U (en) | 2011-12-14 | 2011-12-14 | Large-wheel luggage box capable of climbing footsteps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120521631XU CN202375297U (en) | 2011-12-14 | 2011-12-14 | Large-wheel luggage box capable of climbing footsteps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202375297U true CN202375297U (en) | 2012-08-15 |
Family
ID=46623821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120521631XU Expired - Fee Related CN202375297U (en) | 2011-12-14 | 2011-12-14 | Large-wheel luggage box capable of climbing footsteps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202375297U (en) |
-
2011
- 2011-12-14 CN CN201120521631XU patent/CN202375297U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20141214 |
|
| EXPY | Termination of patent right or utility model |