CN1817713B - Small foldable single-wheel trolley with connection and traction transmission, trolley device, and transportation and indication method - Google Patents

Abstract

A foldable small single-wheel handcart with connection and traction convertible installation mechanism, its showing, nesting and closely folding method, the method for folding wheel, supporter and handle, and other novel parts are disclosed. Its installation mechanism can be moved or folded inward.

Description

Small foldable single-wheel barrow that band connects and traction is changed and device at handtruck and shipment methods of exhibiting

Relation with every other invention

The present invention is that the sequence number of mentioning on July 18th, 2003 is 10/622,172 U.S. Patent application (small-sized single-wheel barrow and hand barrow) and U.S. Patent Application Serial Number are 10/157,980 and the part continuation of the application (baby truck) of mentioning on May 31st, 2002, the latter is that the sequence number of mentioning on June 28th, 2000 is the part continuation of 09/604,769 patent application.In addition, the application is that sequence number is 10/346,112 and the part continuation of the application of mentioning on January 17th, 2003, also be that sequence number is 10/143 simultaneously, 831 and the part continuation of the application of mentioning on May 14th, 2002,10/143,831 application is that sequence number is 09/604,789 and the part continuation of the application of mentioning on June 28th, 2000.

It is 09/271,274 application that the U. S. application formerly of Xia Piluo is included in the sequence number of mentioning on March 17th, 1999, and present U.S. Patent number is 6,220,611, and authorizing day is April 24 calendar year 2001.

Technical field

The present invention relates to the novel small-sized single-wheel barrow that has one or more wheels, the composite set and the shipment of the hand barrow and the cargo transport device of wheel are arranged, show and folding method.Composite set also can comprise folding wheel, the combination of supporting seat and folding handles, and device also can be transformed into independent tourelle from the assembling of connection or trailer.Different embodiment mainly concentrates on single-wheel barrow and with the hand barrow of one or more wheels; Yet, being used for shipping goods, the wide in range variant of the toter of adult or children and equipment can assemble " erecting frame assembly " and aforesaid folding wheel arrangement.The application provides unique erecting frame assembly simultaneously, it can move to a rapid position attached to the toter bottom from the folding position of a non-use, this moment, the erecting frame assembly can be firmly held in a folding or control position, and when non-use position, the erecting frame assembly is in the inner space of toter.The present invention discloses effective shipment of this toter especially, the method of displaying and compact storage, selectable method is that this device is installed on the attaching parts or trailer connection of independent tourelle simultaneously, and this moment, toter was in a movable or motionless state.

Background technology

Applicant's United States serial is that 10/622,172 part continuation discloses the novel method that relates to small-sized single-wheel barrow and hand barrow.United States serial is 10/622,172 application is developed in first to file by the applicant's, comprise that in first to file the United States serial of mentioning on January 17th, 2003 is 10/346,112 part continuation, wherein disclosed content relates to small foldable move or walk or drive slowly baby stroller and similar cargo transport device, and novel and unique rotatable and folding wheel mechanical device are disclosed, it is used to walk or drive slowly or a representative type front-wheel of mobile baby stroller, and can broadly be applicable to other hand barrows and cargo transport device with different wheel structures.Be that the applicant discloses band rotary folding wheel, the baby truck of lower support and handle or hand barrow toter in another U.S. Patent application of 10/157,980 at sequence number.The application of this uniqueness is also integrated applicant is at jogging baby stroller/referring to the several innovations described in the cargo transport device application above, and United States serial 10/157, different disclosure in 980 baby truck/hand barrow application also has the innovation part of upgrading simultaneously.Many these innovations are integrated into single-wheel barrow disclosed herein or similar having in the wheeled trolley.

This part continuation application discloses composite set and the shipment of single-wheel barrow and hand barrow parts and folding details, mainly concentrate on the shipment of the big and heavy toter of these volumes, show and folding useful effect all not have to disclose in the mode of the employing first technology where in office.Some inventions formerly disclose the method for the part erecting frame assembly of folding toter, for example Tomchak etc. is 216 in United States serial, the application of 071 (on September 9th, 2002 mentioned) and United States serial are described in the application of 431,078 (on May 7th, 2003 mentioned).Yet, the technology formerly that relates to toter erecting frame assembly does not provide the method that each parts of this toter (wheel that comprises it) are folding, parts are in the small-sized erecting frame assembly of selecting to move, and erecting frame assembly self can fold in the edge contour and periphery of toter base space, and the base bottom that perhaps moves to toter is to determine a folding or complete control position.Formerly technology does not provide main erecting frame assembly is fixed in any described position fast and selectively.Simultaneously, similar hand barrow does not formerly provide, and self can fix each member the erecting frame assembly, and does not require that the user connects different member each time or is fastened on the erecting frame assembly with structural member.The cargo transport device of the interconnection Connection Element of band selection dismounting is disclosed among the present invention simultaneously, the United States serial of mentioning on October 23rd, 2002 is 10/279, in 199 the application, the Matin expectation is linked and packed by one a high-mobility, multipurpose, wheeled vehicle cargo transport device is connected on the propelling unit.This cargo transport device that Martin describes comprises " detouchable wheel " and " detouchable handle " (seeing 0051 section), but Martin fails to imagine one and moves folding wheel and handle, it is folding but inconvenient dismounting and reorganization (being equally applicable to lower support) avoided in the position of non-separation therefore that they all have a control position and one.The open of applicant also provides non-separation especially or can select separation and folding part, wheel is provided simultaneously, the folding position of handle and lower support, be any available inner space that does not occupy toter better, toter was used to freight and linked to each other with a propelling unit or independent tourelle by Connection Element this moment.

Summary of the invention

The application provides will (it can comprise folding wheel at the erecting frame unit construction on single-wheel barrow and the device at handtruck, supporting seat and handle member) compact-folded unique and comprehensive method, and can select the Connection Element dismantled or the installation method of trailer element.The framework of " erecting frame assembly " can comprise all or partial component (except basin or base) of device, the erecting frame assembly can selectively move or be folding, the framework that only needs the user to operate the erecting frame assembly the be fixed inside or the bottom of auto levelizer.Disclosed single-wheel barrow or hand barrow " erecting frame assembly " structure is in shipment, during transportation or the sale, can be fully or fold into basically in the edge contour and periphery of " end basin " or " base " of toter, and selectively by general a series of " release rapidly "/retaining elements that are fit to arbitrarily known in technology, convex-concave connecting device for example was connected to the bottom of base or end basin before manipulating.Be fixed to " the erecting frame assembly " of end basin or base bottom, comprise all typical component of toter, it can move between a folded state and a mode of operation in a very compact-folded profile.Disclosed method allows " erecting frame assembly " framework as a separate part, be connected on end basin or the base fast or promptly or be connected to the bottom of device by the fixed form of a series of any appropriate, and release from these parts, these modes can relate in described arbitrary locational one or same quick release mode.The erecting frame assembly can load and transport and fold in the toter profile, the advantage that such erecting frame assembly is provided is various, and need to increase self size of this device chest of shipment, because single-wheel barrow and similar hand barrow are large volume and heaviness, under prior art, the retailer spends inappropriate time and makes great efforts to rebuild or or even set up the spacial flex of this device.Finally, the user is very difficult to store this device by a kind of mode easily, yet herein open solved aforesaid many inconveniences.

Applicant's multiple innovation that the application is simultaneously integrated, these innovations are derived from different from first to file, the erecting frame assembly of or unexposed activity open in first to file, especially, component application is in single-wheel barrow and hand barrow with single or multiple wheels, comprise: with the wheel locking of a single-wheel barrow or hand barrow, release and/or move to one or more methods of selecting the folding position from a control position, in the folding position, wheel at least closely is in the edge contour of described device support.The method of one or more deformable bodys of locking and release device at handtruck lower support, and allow them to fold into the interior method of edge contour of hand barrow basically.The method of two single-wheel barrow handles that separate or a U-shaped single-wheel barrow handle is provided, handle has a control position and one second folding position, in the folding position, handle flushes with the edge contour of device at handtruck or in edge contour, and the device assembling that utilizes a kind of mode easily to work and to fold, shipment is showed and peculiar methods nested or that pile up.Simultaneously, the application provide mutually to method, stipulated lower support interlocking and/or machinery or rotate automatically and engage with one or more handles of toter, interactional method is used for locking between one or more lower support and one or more grip member, moves or the release adjacent components; And utilize a kind of mode easily peculiar methods nested with folding device or that pile up of will working.In addition, the application provides novel method, allow toter with all interconnection parts, be releasably attached to independent having on the wheel apparatus by Connection Element or different trailer fabricated sections, other members that the wheel of toter is in a job or folded state and interconnection are in coupled condition.

Further characteristics of the present invention and advantage will propose in the detailed description of following most preferred embodiment or illustrate.

Description of drawings

Fig. 1 is a width of cloth side isometric view that is in the inversion single-wheel barrow or the hand barrow 1-A of a complete folding position.

Figure 1B is a width of cloth front end front perspective view that is in the device at handtruck 1-A of control position, its slight pitching, and part disconnects.

Fig. 1 C is a width of cloth side isometric view of device at handtruck 1-A front-wheel, and wherein fore wheel structure is from the control position release and partly be rotated down.

Fig. 1 D is a width of cloth side isometric view of wheel system before the device at handtruck 1-A, and wherein front-wheel is from the control position release and at the midway location of half-twist before complete folding position on its axle.

Fig. 2 is a width of cloth bottom block diagram that is in the device 1-A of complete control position.

Fig. 3 overlooks end perspective view with the width of cloth of the device at handtruck 1-A of an erecting frame assembly 2, and the erecting frame assembly is in the erecting frame assembly such as the same second nested device of an orienting station in the inner space of device.

Fig. 3 B is that a width of cloth of erecting frame assembly 2 is overlooked end perspective view, and its parts erecting frame surface is downward, and this figure is best Figure of abstract.

Width of cloth leading section block diagram when Fig. 4 is the slight pitching of two device at handtruck that nest together is below the device above having shown is nested in the inner space of device end basin.

Fig. 5 A is a width of cloth lower flat view, has shown that selectable toter is connected on the independent tourelle by Connection Element two places.

Fig. 5 B is a width of cloth lower flat view, has shown that one second selectable toter is connected on the independent tourelle by Connection Element three places.

Fig. 5 C is toter 2﹠amp; One width of cloth side isometric view of a mixture of 3 is installed slight pitching, mainly is the method that handle stretches and shrinks.

Fig. 6 is the width of cloth birds-eye view of inverted device at handtruck 1-A, has shown two independently handle examples, and dashed line view has shown their folding position.

Fig. 7 is the width of cloth birds-eye view of inverted device at handtruck 1-A, has described to be in an embodiment of a U-shaped handle of work and folding position.

Fig. 8 is the width of cloth birds-eye view of inverted device at handtruck 1-A, has described an embodiment of two independent handles of a cover.

Fig. 9 is the width of cloth side isometric view of elevation mount 1-A, has described an embodiment, the wherein mobile motion that impel a corresponding supporting seat element of handle element between control position and folding position.

The specific embodiment

1A. toter parts

1. end basin

2. single-wheel barrow or hand barrow erecting frame assembly

3. the anterior cross member of installing

4. cross member is installed at the rear portion

5. handle

6. handle endless tube

7. handle lock pin

8. wheel/tire

9. wheel fork

9A. groove is accepted in the wheel fork locking

10. wheel fork tire bolt

11. wheel fork dumps seat

12. the wheel fork subordinate supports

12A. wheel fork subordinate support base basin stand

13. wheel fork front end pivot shaft

14. wheel fork front end rotation endless tube

15. wheel fork is installed pin

16. wheel fork folding position lock pin or magnet

17. handle endless tube ramp

18. wheel fork fabricated section

18A. wheel fork hold-down arm

18B. wheel fork mounting bracket

19. wheel fork support locking latch

20. wheel fork locking latch spring

21. lower support

22. lower support installation bracket

23. lower support lock pin

23A. lower support lock pin spring

24. the retaining element of erecting frame assembly

25. hold-down bolt

26. installation nut

27. quick release bolt

28. quick release nut

29. wall hanging groove (or wall hook)

30. toter 2

31. propelling unit connects acceptor

32. can select the Connection Element dismantled

33. toter connects acceptor

34. closing appliance

35. toter 3

36. propelling unit or tourelle

37. selectable U-shaped handle

38. in pull handle

39. cavity

40. lock pin

41. spring-loaded drg

42. hinge/linkage point

Single-wheel barrow or device at handtruck shown in (1-A) at first in Fig. 1 to Fig. 3, have been described.Shown movable parts erecting frame system 2 among Fig. 1, it is installed at the bottom of the toter on basin or the base 1 by suitable convex-concave connecting device.In Fig. 1, all parts are in a folding position.The same parts of as shown in Figure 2 all are in a work use location.Referring to Fig. 3, all working parts of parts 2 are assemblied in the inner space of end basin or base 1.In Fig. 3, the position that the position at parts 2 places of demonstration such as the same second folding single-wheel barrow or device at handtruck 1-A occupy is on its nested one second parts shown in the figure (yet the end basin 1 of upper part omits from figure).Best single-wheel barrow device shown in Fig. 1 has parts 2, and it comprises an anterior cross member 3 and the rear portion installation cross member 4 (shown in the best among Fig. 2 and Fig. 3) installed.The all handles, wheel and the supporting seat parts that are installed on one or other described cross members 3 and 4 have wherein been shown.Fig. 1 has shown the handle 5 that is hidden in two elongations in a pair of handle endless tube 6.Each handle can extend and utilize handle lock pin 7 lockings (referring to Fig. 2 and Fig. 3).Though in Fig. 2 and Fig. 3, shown a simple rotatable grip lock pin 7, the handle lock pin that also can use any appropriate with handle locking in work and folding position (not showing).Can use any other variant of handle, it can extend or be shrunk to a collapsed shape.

Fig. 1 has shown the folding position of wheel 8 simultaneously.Wheel 8 is installed on the wheel fork 9 by a wheel fork tire bolt or pin 10.Wheel 8 shown in Figure 2 is in its work use location, has clearly illustrated that wherein wheel fork dumps seat 11.The wheel fork subordinate of selectively being installed to wheel fork 9 supports on 12, and support can be moved or rotates along wheel fork 9.At control position, the user supports 12 with the wheel fork subordinate and is fixed on the wheel fork subordinate support base basin stand 12-A, so that for providing further support between wheel fork 9 and toter base or the end basin 1.As shown in Fig. 1 and Fig. 2, wheel fork 9 is installed in the bottom of end basin or base by a wheel fork fabricated section 18.The wheel fork fabricated section comprises two divided portion, and one of them is a wheel fork hold-down arm 18-A, by wheel fork pin 15 wheel forks 9 is installed and is installed on the hold-down arm.Yet wheel fork fabricated section 18 also comprises an other part, i.e. wheel fork mounting bracket 18-B (as shown in Figure 1).Shown in Fig. 1, further being installed on the wheel fork fabricated section 18 is a wheel fork support locking latch 19.Latch 19 carries out spring-loaded by a pair of wheel fork locking latch spring 20 (having clearly illustrated one of them among Fig. 2) in wheel fork mounting bracket 18-B inside.

At the control position of as shown in Figure 2 wheel, the wheel fork parts comprise a wheel fork front end pivot shaft 13 and comprise a wheel fork front end rotation endless tube 14 near wheel fork installation site (not showing among this figure).Perhaps, the installation method of wheel fork 9 allows at least 90 ° of wheel fork rotations, and at this moment, wheel fork is from work or folding locked position of coupler release.In fact, Fig. 2 has shown the control position of front tyre, wherein front tyre locking and accepted by a support (wheel fork fabricated section 18).

Series Figure 1B, 1C and 1D depicted in greater detail in toter embodiment 1-A, wheel moves to locked position of coupler from control position.At first referring to device at handtruck 1-A shown in Figure 1B and device end basin 1.

Wheel fork support 18-B is firm and support a part of wheel fork 9, and wheel fork is fixing by a wheel fork tire bolt 10 around tire or wheel 8 and tire.Simultaneously, a wheel fork dumps on seat 11 parts that are installed to around tire 8.Fig. 1 C has shown that same tire or wheel 8 are from the last release of its support 18-B.Wheel fork front end pivot shaft 13 is wheel fork 9 parts nearest apart from basin at the bottom of the device at handtruck 1, and it is installed on the wheel fork hold-down arm 18-A.Wheel fork front end pivot shaft 13 can rotate at least 90 ° by the endless tube (not showing among the figure) of any appropriate, and perhaps wheel fork 9 only rotates on its attachment point, and this moment, it was not latched in control position.In Fig. 1 C, wheel fork rotates to a disengaging configuration from wheel fork fabricated section 18, and exposes outside the wheel fork locking and accept groove 9-A, is actually the part of wheel fork 9 in this detailed embodiment further groove.Referring to Fig. 1 D, tire 8 rotates about 90 ° on its pivot shaft 13, and also in the direction partial rotation towards the cart base center.Finally, Fig. 1 has shown that wheel 8 is in the state of folding position fully.Importantly, content disclosed by the invention also relates to folding tire 8 and is in the position different with folding position shown in Figure 1.For example, wheel can be latched in described other places, and with the cart base lower vertical, and the position of folding wheel can be parallel and near any external part of device end basin, even is not same as shown in Figure 1.

Folding position shown in the closedown mode that utilization is fit to arbitrarily is latched in tire 8.In the most preferred embodiment shown in Fig. 1-3, by one group of groove or accept part 9-A, promptly accept groove as the wheel fork locking of a part of wheel fork 9, the wheel closedown mode works on control position (Fig. 2).Closedown mode that can application of any suitable, but do not show.When wheel fork 9 was in as shown in Figure 2 control position, a pair of wheel fork locking was accepted groove 9-A and is stuck on the wheel fork mounting bracket 18-B, and the control position that allows wheel fork locking latch 19 effectively wheel fork 9 to be latched in as shown in Figure 2.

Front-wheel release as shown in Figure 2, the user can move wheel fork support locking latch 19 (it is spring-loaded) like a dream along the direction away from the base center-point, to finish the unlocking operation in running order tire.Except the lock pin shown in the figure, can use or adopt any lock pin.

Closedown mode that can application of any suitable is latched in the folding position with tire, but in the most preferred embodiment as shown in Fig. 2 and Fig. 3, a magnet is installed on the rear portion cross member 4 wheel 8 is latched in folding position as shown in figures 1 and 3.Perhaps, tire only locking and be fixed on basin bottom, the end and folding lower support between, lower support is in blocking.Referring to Fig. 1, this figure has shown a pair of handle endless tube ramp 17 simultaneously, it is installed in any appropriate part of handle endless tube 6, and be installed in successively anterior install on the cross member 3 and/or be installed in the rear portion install on the cross member 4, make front tyre become the angle of any appropriate with the rolling plane.

Referring to a pair of lower support 21 illustrated in figures 1 and 2, it supports a part of assembly 2 by four lower support installation brackets 22.It should be noted that as the substituting of a pair of lower support single-wheel barrow or hand barrow can use an independent lower support, it equally also can have a folding and control position.In most preferred embodiment illustrated in figures 1 and 2, can comprise a series of lower support lock pins 23 (not showing), it is near lower support installation bracket 22.Can utilize the lock pin of any appropriate, comprise a spring-loaded lock pin 23A (not showing).The operation of lock pin acts on lower support 21, is supported on control position and folding position locking and release to impel.Selectively, this also can be by a horizontal stop support arm (not showing) interconnection to lower support 21, hold-down arm is installed in the support and simultaneously and relative support and connection, and hold-down arm can move to a folding position from a control position along with supporting 21.Folding support 21 can stack mutually, (not showing) perhaps placed side by side.At control position, this cross-tie is connected with each lower support 21, and so that the further support on control position to be provided, and hold-down arm can fold into the position that flushes with the toter bottom versatilely.

Referring to Fig. 3, by the retaining element 24 of series installation frame component, anterior cross member 3 and rear portion cross member 4 be fixed on each handle endless tube 6 and handle endless tube ramp 17 separately (suppose that handle endless tube ramp and handle endless tube selectively are integrated on the single and non-separated components).Can use the fixing means of any appropriate, comprise screw, bolt, a kind of welding method or or even cross member 3 and 4 and handle endless tube 6 and handle endless tube ramp 17 between the elasticity convex-concave connect.Yet, the effect of erecting frame retaining element is to create a single-piece erecting frame assembly 2, it can be fixed all parts of single-wheel barrow and hand barrow, (is in a folding position this moment) so that assembly and is in fully in the inner space of toter or be fixed to the bottom of toter.For example, in when shipment, the erecting frame assembly can be placed in the inner space of toter and be fixed to or be not fixed on the base.

Shown in Fig. 3 B, the physical relationship of the erecting frame assembly 2 in basin at the bottom of the toter 1.Relation between erecting frame assembly 2 and the end basin 1 shown in Fig. 3 B can be located in any direction, except shown in the figure or assembly can also be inverted (as shown in Figure 3).

As shown in Figure 4, two toters that are in nest relation have been shown.In Fig. 4, the top of two folding means has the erecting frame assembly of contact basin 1 bottom, the end.The toter 1 of topmost and/or its erecting frame assembly 2 are nested in the edge contour of lower bottom basin 1 at least in part.Certainly, the orientation of the toter of the topmost shown in Fig. 4 can by directed in the opposite direction 180 ° replace.And, it is contemplated that a plurality of parts can both be nested, although only shown two parts.Referring to Fig. 2 and one type hold-down bolt shown in Figure 3 and the embodiment that nut is installed, it is used for erecting frame assembly 2 is fixed to single-wheel barrow or device at handtruck 1-A.A series of this bolts and nut can be used for the erecting frame assembly is fixed to end basin along the bottom, the location of this erecting frame assembly perhaps like this, to such an extent as to same bolt and nut are used for temporarily the erecting frame assembly being fixed on the inner space of basin 1 at the bottom of the device, this moment the erecting frame assembly the orientation shown in Fig. 3 B.Selectively, provide quick release thumbscrew or bolt 27 and quick release nut 28 to device, it is positioned on erecting frame assembly 2 and its cross member 3 and 4 by a kind of mode, allow the user to operate the thumbscrew of a series of quick releases or bolt in case by the simple manual operation mode internally the locus or from lower position with the parts release.Nut or bolt can be fixed on the erecting frame assembly 2 semipermanently and (not show).Although in any width of cloth figure, all do not describe, yet, the profile of end basin 1 bottom and inner space can be by slipper bracket, the acceptor of perhaps a series of coupling erecting frame assembly corresponding shaping parts is moulded suitably and is formed, to such an extent as under the state of fixing and release, the erecting frame assembly moves on the acceptor of moulding or from acceptor and removes, and connector can be any convex-concave annexation.

Referring to wall hanging groove or slot type part 29 shown in Figure 2 along end basin 1 stub wall handle end, its effect is when parts are in as shown in Figure 1 complete folding position, parts can be hung on the structure as the suitable wall hook (not show).And, groove or opening 29 can be positioned on the position of any appropriate of end basin stub wall, front bulkhead (not show) for example, and can not use a groove, and use a simple and easy hook that can spin out from end basin, be used for toter is hung over a wall protrusion.

Fig. 5 A is a width of cloth view of a selective toter 2 bottoms 30, device is installed on the Connection Element 32 that can select to dismantle, and element is installed on the Connection Element 31 that interconnects with a propelling unit 36 (can replace with the propelling tourelle of any kind).Connection Element 32 selectively is fixed on the propelling unit Connection Element 31, and is fixed to one that a part of base by toter 30 forms and connects on the acceptor 33 (omissions of detail).At least one lock pin or closing appliance 34 are connected acceptor with Connection Element 32 and toter and engage, and separate unintentionally with Connection Element 32 to stop toter 30.Furthermore, other lock pin or closing appliance can stop Connection Element 32 to be dismantled from propelling unit Connection Element 31 regions of acceptance.Fig. 5 A comprises folding tire 8 simultaneously, and dashed line view has shown the position of work tire.And, having shown the supporting seat 21 of an adequate types that is in the folding position, it can move to a control position (not showing).A suitable door handle device 37 is in a control position, yet in the handle folding position, handle moves in the suitable openings or groove that is formed by toter stub wall part (seeing Fig. 5 C for details).Toter is that (although can use any other mounting means) laterally is installed, and can be advanced by the propelling unit that is in a complete folded state (or mode of operation), and it is fully loaded with cargo still to have the ability in toter base inside.Device can comprise or not comprise the framed structure (being used for wheel and miscellaneous part) that can select the erecting frame assembly dismantled.

Fig. 5 B has shown selective toter 3 (35), and it can be installed to by the Connection Element 32 that can select to dismantle on the independent movable device, and Connection Element 32 links to each other with propelling unit Connection Element 31.Connection Element 32 can be laterally to install as shown in the figure, perhaps uses any other selectable mode that (not showing) is installed.And, can comprise that the lock pin 34 of any appropriate is used for Connection Element is fixed to convertible toter 35.Shown in Fig. 5 B, toter 3 comprises two folding wheels 8.In Fig. 5 B, these wheels are along the lower folded of toter 35.Yet tire also has a control position, and wherein, they can move vertical with the toter base, and the toter of this moment separates from Connection Element 31.Toter 35 can also have one or more lower support of selecting type.With dashed lines has shown a pair of coupling lower support 21 that is in the folding position among Fig. 5 B.Lower support has a control position, wherein supports the position that is positioned at the vertical toter base of pointing out among the figure.Certainly, when toter is in a control position, the lower support of any appropriate be can use, the single support shown in Fig. 5 A or the support of every other form comprised.And Fig. 5 B has pointed out the elongation handle element 5 of operable a pair of coupling.An extended position, the user catches the handle element of elongation, it can be pushed away or draws (perhaps using " U " shape handle to replace the elongated portion that stretches along toter side leg) when being in control position with convenient toter, yet the handle element of each coupling elongation can shrink and fold in the edge contour and at least near the periphery (not showing) of toter 35.Simultaneously dotted line has shown and has pulled handle 38 in selectable in Fig. 5 B, its be can select to use and do not use handle 5 as shown in Fig. 5 B.In pull handle and be not preferred, but can adopt the mode of any appropriate it to be moved and folds into the position of contiguous toter base.

Furthermore, Fig. 5 C has shown selectable toter 35 (toter 2﹠amp; 3 mixture), it concentrates on the formal of handle.Shown U-shaped handle 37 (but can replace it to use to extend handles at two that show among other figure) has a locking extended position shown in Fig. 5 C.Lock pin 40 by activity remains on the stretching, extension control position with handle, and each side of toter all has a lock pin, but has only shown a side among Fig. 5 C.In each side of toter 35, all there is a suitable molding cavity 39.Cavity 39 is formed by a part of stub wall profile of toter, and can come in and go out by cavity 39 handles 37.A movable lock pin 40 is installed to the position of adjacent cavities versatilely, its engage with a part of handle with handle locking in the extended position shown in Fig. 5 C.In use, the user moves movable lock pin 40 with a part of handle 37 and engages, and makes handle locking in extended position.Use several different methods to make lock pin engage, include but not limited to a protruding/recessed connection, a kind of mode of bullet bolt with handle, perhaps selectively, use a handle " binding ring ", it is open in 10/157,980 the US Patent formerly at the sequence number that the applicant submitted on May 31st, 2002.Above-mentioned application discloses a movable binding ring, its around the profile of handle and the work that plays lock pin in order to interlock handle 37.The counter motion of lock pin 40 allows handle to be retracted to a folding position shown in dotted line among Fig. 5 C, and wherein handle can fold into the position that flushes with toter stub wall profile and/or below a stub wall edge or outshot.Fig. 5 C has also shown a series of lower support 21 that one of them is potential.The lower support that shows is in control position and can folds into the position that flushes with the toter profile.

In Fig. 5 A or Fig. 5 B, any one toter shown in being understandable that can be from connecting device 31 dismountings of other independent propelling units or toter.The user can move to a series of folding element a control position, and allows toter lade or passenger or their combination, and toter uses as a movable device.Simultaneously, toter can be in a folding position so that allow it to deposit, and be not to be a small-sized propelling unit with folding profile, when the user wished by connecting device toter to be connected to once more on other the propelling unit, it can be transformed into toter.Detachable connection mechanism can be installed on the propelling unit and also can be installed on the toter.

Fig. 6 has shown a width of cloth view of device at handtruck 1-A bottom, has mainly shown a pair of handle 5 of elongation basically.Handle 5 has a component part A, and it is in the control position shown in the figure as the handle prehension end.It is any mobile suitably to impel handle 5 to carry out, to such an extent as to whole handle is folded into basically in the edge contour of device at handtruck, and flush with cart base basically, shown in transparent view B.Handle can adopt one of following several forms:

The handle joint can be in nestable simply/contraction between the position shown in A among the figure and B (shrink and stretch);

Handle can be made up of at least two joints, to such an extent as to and A joint can in any plane, rotate about 180 ° by inter locking gear between two joints or hinge, A saves and folds into the position that contiguous B saves basically.Rotate 180 ° can be the bottom along device at handtruck, or outside the leg of device at handtruck and be parallel in the plane of base bottom Rotate 180 °.

Fig. 7 and Fig. 8 have shown the selectable handle embodiment of device at handtruck (1-A).Fig. 7 has shown a U-shaped handle 37, and it stretches as shown in the figure and shrinks.A tire 8 that is in the folding position is indicated by dotted line.Handle 37 also may be collapsed in certain part of anterior installation cross member 3, shown in letter b and dotted line.Fig. 8 has shown two grip structures 5 along the elongation of device at handtruck (1-A) bottom.The dotted portion of each handle has shown its extended position.The movable any suitable closedown mode of installing can be as the locking of stretching and shrinking the handle location and the mechanical device of release.Movable lock pin 40 as shown in the figure comprises multiple mode, comprising spring-loaded drg, shown in 41.

Fig. 9 has shown the details of an important embodiment of moving mutually between the handle 5 of device at handtruck (1-A) and lower support 21.The contraction that an embodiment of disclosed device is a handle 5 impels at least one lower support 21 corresponding folding movement mutually/move.Here shown an embodiment, still, impelled between handle 5 (perhaps selectable handle 37) and the lower support 21 (in any one embodiment, discussing) this to move mutually and caused mutual motion.For example, if user's folding handles, then it can make lower support automatically folding.If the user selects lower support 21 is moved to control position, this motion can make handle move to a control position from a folding position equally.And oppositely directed mutual motion also is like this.Certainly, at hinge/linkage point 42, can be provided with lock pin 40 releases of any appropriate or with it and allow handle to move to folding position or opposite from control position.Handle can shrink or rotation with disclosed any way among the application.

Although the invention describes certain embodiments, it should be noted that, can use combination or folding or the non-folding wheel of any structure of description, and the position location of support or handle, and do not depart from disclosed theme here, and also can use different toter shapes, the profile of base and leg.Can use the structure of single or multiple wheels, and the embodiment of disclosed handle and lower support can combine with the structure of other wheels or parts and mate in a width of cloth figure.

Claims (17)

1. toter that wheel is arranged, described toter comprises:

A base for supporting comprises a plurality of short walls that project upwards, and has defined an edge contour and a periphery, and has defined an interior shape and an outer shape; With

At least one is held part and uses as movable handle; With

The erecting frame structure that can select dismounting, it has been installed at least one movable wheel support block construction, and be installed to the bottom of the base for supporting that is in first control position at least in part versatilely, at second midway location, the described lower part of erecting frame structure and base for supporting from, and in the 3rd folding position, erecting frame structure and the wheel support parts with at least one associated wheel are in the inside of edge contour and base for supporting basically; With

At least one wheel support parts has a pivot shaft, a wheel anchor fitting and a wheel that has defined a plane, and described wheel support parts are movably between with upper/lower positions, the first work locked position of coupler, wherein said wheel uprightly supports for described toter provides motion, and described wheel is vertical with base for supporting; And

The pivot shaft position of the wheel when a wheel midway location, the wheel of wherein said wheel support parts approximately are positioned at the first work locked position of coupler becomes 90 °; And

The contiguous basically base for supporting in a wheel folding position, wherein said wheel plane is in the edge contour of base for supporting basically; With

But the closing appliance of release is used for described at least one wheel support parts are latched in the first work locked position of coupler at least.

2. toter as claimed in claim 1, wherein the wheel folding position is arranged essentially parallel to base for supporting, and along the bottom of base for supporting.

3. toter as claimed in claim 1, the erecting frame structure that wherein can select dismounting also can be installed at least a portion of at least one movable handle and at least a portion of at least one movable lower support to small part.

4. toter as claimed in claim 3, the wherein said erecting frame structure of selecting dismounting selectively is installed in the bottom of base for supporting at first control position, and selectively move to described the 3rd folding position, this moment the erecting frame structure, at least one handle, at least one lower support, and at least one wheel support parts all is in the edge contour basically and base for supporting in-to-in periphery in.

5. toter as claimed in claim 3, wherein at least one handle comprises that a spreadable portion and one accept part, and a handle closing appliance is provided, can selects manual manipulation mode to stretch and punctured position with respect to accepting one that handle portion that part stretches be fixed on about the base for supporting periphery.

6. toter as claimed in claim 1, comprising a kind of device, contiguous at least at least one the loose upper end of short wall of this device, and link to each other with a hook on being installed on a perpendicular, thereby toter is hung on this perpendicular.

7. toter as claimed in claim 1, comprise the interconnection Connection Element that to select dismounting, it as a Connection Element, interconnects toter and an independent tourelle, to such an extent as to independent tourelle advances the toter of interconnection when first control position.

8. toter as claimed in claim 7 wherein can select a part to the small part on the interconnection Connection Element of dismounting to be installed on the base for supporting of toter, and other parts of at least one Connection Element is installed on the tourelle.

9. toter as claimed in claim 1, wherein the wheel anchor fitting comprises at least one arm configuration, arm configuration further is installed on the trochoid; And

Described joint further is installed on the described erecting frame structure; And

But described joint and the closing appliance of release that is in the described first work locked position of coupler the described wheel of described wheel support parts is fixed on the described first work locked position of coupler, and wheel are substantially perpendicular to the base for supporting of toter; And

At the wheel midway location, the release from the described closing appliance of described wheel support parts and described arm configuration, and they can move along a vertical basically plane on described joint, and can be along at least 90 ° of described joint rotations; And

In the wheel folding position, described wheel inwardly points to the center of the base for supporting of toter.

10. toter as claimed in claim 1, the wheel of at least one wheel support parts that wherein is in the described first work locked position of coupler is about its 360 ° of pivot shaft rotations.

11. the toter that wheel is arranged, described device comprises:

A base for supporting, it has defined an edge contour and a neighboring; With

At least one wheel support parts, it is connected on the described base for supporting; Described wheel support parts comprise wheel anchor fitting and an additional shaft, and a wheel with a neighboring, the wheel sub-definite plane and have a rotation central axis, described wheel support parts are movably between first control position and second folding position, at control position, described wheel uprightly supports for described base for supporting provides motion, and the edge contour that is substantially perpendicular to base for supporting is extended on the plane of described wheel support parts definition, in the folding position, described wheel support parts are between described first and second positions when mobile, an angle is rotated on the described plane of taking turns sub-definite of described wheel support parts, to such an extent as to be in the described plane of taking turns sub-definite of the described wheel support parts second place, be parallel to base for supporting approx and be in basically in the edge contour of described base for supporting; And

In described second folding position, the rotation central axis of described wheel is in fully and the periphery of wheel also is in the edge contour of base for supporting basically; And

But the closing appliance of release is used for described at least one wheel support parts are latched in described first control position at least; And

The interconnection Connection Element that can select dismounting, at first control position as a Connection Element, with toter and an independent tourelle interconnection, to such an extent as to independent tourelle advances the toter of interconnection, and at one second disassembly status, described Connection Element is not connected with toter; And

At least one is fixed to the handle on the toter, and it can move to handle second folding position from handle first control position, at the folding position up knob near base for supporting and basically in the neighboring at described device; Described handle comprises at least two elongated portions, and elongated portion to small part combines with the cavity of accepting of a handle; Each side in two opposite flanks of described device, described handle is accepted cavity and has been formed at least one opening, the handle locking device can be installed on the toter versatilely, contiguous described handle is accepted the cavity opening, and on described opening, combine with the described handle of a part, the closing appliance of described movable installation can move to a control position, wherein closing appliance on described opening in conjunction with and the locking handle portion, to stop described handle portion to move forward and backward with respect to toter, from described locked position of coupler release, allow described handle portion between described work and folding position, to move mobilizable closing appliance.

12. the toter that wheel is arranged, described device comprises:

A base for supporting, it has defined an edge contour and a neighboring; And

Be fixed at least one the wheel support parts on the described base for supporting; Described wheel support parts comprise wheel anchor fitting and an additional shaft, and a wheel with a neighboring, the wheel sub-definite plane and have a rotation central axis, described wheel support parts are movably between first control position and second folding position, at control position, described wheel uprightly supports for described base for supporting provides motion, and the edge contour that is substantially perpendicular to base for supporting is extended on the plane of described wheel support parts definition, in the folding position, described wheel support parts are between described first and second positions when mobile, an angle is rotated on the described plane of taking turns sub-definite of described wheel support parts, to such an extent as to be in the described plane of taking turns sub-definite of the described wheel support parts second place, be parallel to base for supporting approx and be in basically in the edge contour of described base for supporting; And

In described second folding position, the rotation central axis of described wheel is in fully and the periphery of wheel also is in the edge contour of base for supporting basically; And

But the closing appliance of release is used for described at least one wheel support parts are latched in described first control position at least, and wherein closing appliance directly combines with a part of wheel support parts; And

Grabbing part as at least one hand of handle is a member of toter; And

The interconnection Connection Element that can select dismounting, at first control position as a Connection Element, with toter and an independent tourelle interconnection, to such an extent as to independent tourelle advances the toter of interconnection, and at one second disassembly status, toter is dismantled from Connection Element.

13. the toter that wheel is arranged, described toter comprises:

A base for supporting comprises a holder part, and base has defined an edge contour and a neighboring; And

Be fixed at least one the wheel support parts on the described base for supporting; The wheel that described wheel support parts comprise the wheel anchor fitting and have a neighboring, the wheel sub-definite plane and have a rotation central axis, described wheel support parts are movably between first control position and second folding position, at control position, described wheel uprightly supports for described base for supporting provides motion, and the edge contour that is substantially perpendicular to base for supporting is extended on the plane of described wheel support parts definition, in the folding position, described wheel support parts are between described first and second positions when mobile, the direction that moves is pointed to the center-point of base for supporting, an angle is rotated on the described plane of taking turns sub-definite of described wheel support parts, and be in the described plane of taking turns sub-definite of the described wheel support parts second place, be arranged essentially parallel to and be in basically in the edge contour of described base for supporting; And

In described second folding position, the rotation central axis of described wheel is in fully and the periphery of wheel also is in the edge contour of base for supporting basically; And

At least one lower support that at least one hand is grabbed member and provided support between toter and rolling plane; And

The described wheel anchor fitting of wheel support parts comprises that at least one connects the first of base for supporting, and support engagement centre portion and with the other part of the rotation central axis interconnection of described wheel; And

When the wheel anchor fitting is in first control position, the base for supporting holder part supports and receiving device as one, the part of the support engagement centre portion of the wheel anchor fitting of its engagement wheel support component, and when wheel support parts during in described second folding position, at least a portion of the described support engagement centre portion of anchor fitting breaks away from from the contact of described holder part; And

But the closing appliance of release is used for described at least one wheel support parts are latched in described first control position at least.

14. the toter that wheel is arranged, described toter comprises:

A base for supporting comprises a holder part, and base has defined an edge contour and a neighboring; And

At least one handle is fixed on the toter, and it can stretch control position from first and move to the second folding punctured position, and in the folding position, handle is held by a pair of handle receiving portion branch basically, and is in basically in the edge contour of toter; And

At least one lower support, it can move to second folding position from first control position, at control position, lower support is substantially perpendicular to the edge contour of toter base for supporting, wherein lower support provides support between toter base for supporting and a rolling plane, in the folding position, it is in the edge contour of described toter basically; And

At least one wheel support parts is connected to described base for supporting along a pivot shaft; The wheel that described wheel support parts comprise the wheel anchor fitting and have a neighboring, the wheel sub-definite plane and have a rotation central axis, described wheel support parts can move between first control position and second folding position, at control position, described wheel uprightly supports for described base for supporting provides motion, and the edge contour that is substantially perpendicular to base for supporting is extended on the plane of described wheel support parts definition, in the folding position, described wheel support parts are between described first and second positions when mobile, the direction that moves is pointed to the center-point of base for supporting, an angle is rotated on the described plane of taking turns sub-definite of described wheel support parts, to such an extent as to be in the described substantially parallel and contiguous base for supporting bottom, plane of taking turns sub-definite of the described wheel support parts second place, and be in basically in the edge contour of described base for supporting; And

In described second folding position, the rotation central axis of described wheel is in fully and the periphery of wheel also is in the edge contour of base for supporting basically, and folding wheel essentially horizontally is between the described a pair of handle receiving portion branch; And

The described wheel anchor fitting of wheel support parts has defined a pivot shaft, and comprises first that at least one is connected to base for supporting and a support engagement centre portion, and with the other part of the rotation central axis interconnection of described wheel; And

When the wheel anchor fitting is in first control position, the base for supporting holder part supports and receiving device as one, the part of the support engagement centre portion of the wheel anchor fitting of its engagement wheel support component, and when the folding position, at least a portion of the described support engagement centre portion of anchor fitting breaks away from from the contact of described base for supporting holder part; And

But the closing appliance of release is used for described at least one wheel support parts and described at least one handle are latched in described first control position at least.

15. toter as claimed in claim 14, wherein the control position that described at least one lower support is moved to it can impel described at least one handle to move to the control position of handle, and the folding position that lower support moves to it can correspondingly make described handle move to the folding position of handle.

16. toter as claimed in claim 14, the control position that wherein said at least one handle moves to it can impel described at least one lower support to move to the control position of lower support, and the folding position that handle moves to it can correspondingly make described lower support move to the folding position of lower support.

17. toter as claimed in claim 14, wherein at least one handle comprises that a spreadable portion and a pair of handle accept part, and the handle locking device is provided, can selects manual manipulation mode to be fixed on of base for supporting periphery and to stretch and punctured position with respect to accepting handle portion that part stretches.

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