CN2696948Y

CN2696948Y - Moving, lifting and supporting device and step device

Info

Publication number: CN2696948Y
Application number: CN 200320116751
Authority: CN
Inventors: 米切尔·H·巴布基斯
Original assignee: Sylmark Holdings Ltd
Current assignee: Sylmark Holdings Ltd
Priority date: 2003-04-11
Filing date: 2003-11-20
Publication date: 2005-05-04
Anticipated expiration: 2013-11-20
Also published as: TW200420460A; CN1535874A; TWI229042B; HK1060482A2

Abstract

The utility model relates to a moving, lifting and supporting device and a step device. In order to make the multifunction assemble in a single device, the multipurpose moving, lifting and supporting device is provided. The moving, lifting and supporting device and a step device comprise a step frame which is provided with a handle positioned at a first end and a pair of slim legs extending toward a second end, a barrow frame which is provided with the slim leg extending toward the second end, a plurality of steps connected with the step frame, at least an end hinge which can make the step frame and the barrow frame connect in a pivoting mode, and an anti-swinging hook which can be pivoted to connect with the end hinge; when the moving, lifting and supporting device and a step device are positioned in a step structure, the anti-swinging hook is used for locking the relative position of the step frame and the barrow frame. Wherein, the anti-swinging hook is driven under the function of the gravity, and the device can be used for moving, lifting and loading objects. In addition, a step device is also provided, and the step device is composed of the barrow frame and the step frame which comprises a plurality of steps.

Description

Move, lifting and bracing or strutting arrangement and stepwise device

Related application data

The application is the subsequent application of the U. S. application 10/412610 that is called " combination hand barrow (hand truck), ladder (step ladder) and chassis " of application on April 11st, 2003.The application also requires the preceence of the U.S. Provisional Application 60/496356 of U.S. Provisional Application of applying on June 19th, 2,003 60/479902 that is called " improved combination hand barrow, ladder and chassis " and " the making up the safety device of hand barrow, ladder and chassis " by name of applying on August 18th, 2003.

Technical field

The utility model is usually directed to a kind of high-mobility, multipurpose, wheeled vehicle hand barrow, particularly relate to a kind of with the ladder frame fixedly the hand barrow frame so that be used as ladder, hand barrow, or the hinge of the device of chassis.

Background technology

Using hand barrow, chassis and ladder in individual and the commerce is well-known.This device is often used in carrying out in the different muscle power works and moves, promotes and support load.Therefore, need undoubtedly and expect to have such device, need not here to discuss again.

The single hand barrow of various design-calculateds, chassis and stepwise device have been used in recent years.In fact, these devices have been combined into a device, for example US Patent 6173811 described combination hand barrows, ladder and basket means of delivery, US Patent 4106590 described combination hand barrow and ladders, US Patent 3954155 described staged chassis and US Patent 3104889 described hand barrows.

Yet these composite sets can not provide the embodiment of the complete function of corresponding each single assembly usually to the user.In single assembly, make up under the additional situation of being brought easily to exchange in sacrificial section function not, multi-functional being combined in the single assembly of task is difficult to realize.For example, the hand barrow of ' 889 patent does not have the upright handle in the chassis structure, only has three wheels in the chassis structure, and the locking of ladder support or pillar can't be provided in the hand barrow structure.As another example, the staged chassis of ' 155 patent does not have upright handle in the chassis structure, and the combination hand barrow of ' 590 patent and ladder need this device from the trolley structure upset, and to constitute stepwise device, this as shown in Figure 7.In addition, the terrace structure of ' 590 patent is subjected to based on the design of back of the body framework and the restriction of the load that can bear, and described back of the body framework supports ladder.As last example, the combination hand barrow of ' 811 patent, ladder and basket means of delivery do not comprise the chassis structure, do not comprise being used in use device that hand barrow support frame assembly and ladder supports frame assembly are locked together, for example the hand barrow structure yet.

Like this, all be in combination hand barrow, ladder and the chassis industry of global function at every kind of structure, and in some structure, be used for fixing in the articulated system of this device, have unsolved needs.

The utility model content

The technical problems to be solved in the utility model provides that a kind of high-mobility, multipurpose, wheeled vehicle moves, lifting and bracing or strutting arrangement, is combined in the single assembly multi-functional under the prerequisite of sacrificial section function not.

In order to solve foregoing problems, according to an aspect of the present utility model, provide that a kind of high-mobility, multipurpose, wheeled vehicle moves, lifting and bracing or strutting arrangement, it comprises: have the spindle-legged ladder frame that the handle that is positioned at first end and a subtend second end stretch; Has the spindle-legged hand barrow frame that stretches to second end; With a plurality of steps of ladder frame bonded assembly; Make ladder frame and hand barrow frame at least one hinge of bonded assembly pivotly; Pivotly with the anti-hook that waves that is hinged.

According on the other hand of the present utility model, provide that a kind of high-mobility, multipurpose, wheeled vehicle moves, lifting and bracing or strutting arrangement, it comprises: have the spindle-legged ladder frame that the handle that is positioned at first end and a subtend second end stretch; The hand barrow frame exists, and it is connected with the ladder frame pivotly at first end, and elongate leg stretches to second end; With hand barrow frame bonded assembly pin; With ladder frame bonded assembly step assembly, this step assembly has pivotly and a plurality of steps of elongate leg bonded assembly; Make ladder frame and at least one hinge of hand barrow frame bonded assembly, this hinge comprises a carriage, and this carriage has arcuate surface, and this arcuate surface comprises at least one recess, therefore, and by finger setting is come the structure of modifier at least one recess; With the anti-hook that waves that is hinged, the wherein anti-local bottom around pin of hook of waving is so that be fixed on pin in the recess pivotly.

According to another aspect of the present utility model, a kind of stepwise device is provided, it comprises: have the spindle-legged ladder frame that the handle that is positioned at first end and a subtend second end stretch; The hand barrow frame, it is connected with the ladder frame pivotly at first end, and elongate leg stretches to second end; Be attached to the pin on the hand barrow frame; With ladder frame bonded assembly step assembly, this step assembly has pivotly and a plurality of steps of elongate leg bonded assembly; Make ladder frame and at least one hinge of hand barrow frame bonded assembly, this hinge comprises a carriage, and this carriage has at least one recess, and this recess docks with pin, so that ladder frame and hand barrow frame are fixed on the fixed position; With the anti-hook that waves that is hinged, the wherein anti-local bottom around pin of hook of waving is so that be fixed on pin in the recess pivotly.

Specifically, an embodiment of the present utility model provides a kind of multiduty removable, lifting and bracing or strutting arrangement.This device is made by the ladder frame and the cart frame that comprise a plurality of steps.At least one hinge makes the ladder frame be connected with the hand barrow frame pivotly.Prevent that waving hook can be used for frame is locked in the terrace structure.Prevent that waving hook moves in place by gravity.

Another aspect of the present utility model comprises pivotly and ladder frame bonded assembly top step.Upwards pivoting of top step can make the anti-hook that waves be connected with the hinge disengaging, will install release like this.

Another aspect of the present utility model comprises the anti-hook that waves of J-shaped basically.Another aspect of the present utility model comprises that the anti-hook that waves will be fixed in the recess of hinge carriage with hand barrow frame bonded assembly pin.

Another embodiment of the present utility model provides another kind of and multidutyly moves, lifting and bracing or strutting arrangement.This device is made by the ladder frame and the cart frame that comprise a plurality of steps.Pin can be connected with the hand barrow frame.At least one hinge makes the ladder frame be connected with the hand barrow frame pivotly.Hinge can comprise the carriage with arcuate surface.This carriage comprises at least one recess, thereby so that by finger setting being made the structure of device can change in recess.Prevent that waving hook can be used for frame is locked in the terrace structure.The anti-hook that waves moves in placely by gravity, and part is around the bottom of pin, so that pin is fixed in the recess.

Another embodiment of the present utility model provides a kind of stepwise device.This device is made by the ladder frame and the cart frame that comprise a plurality of steps.Pin can be connected with the hand barrow frame.At least one hinge makes the ladder frame be connected with the hand barrow frame pivotly.Hinge can comprise carriage.This carriage comprises at least one recess, thereby so that by finger setting being made the structure of device can change in recess.Prevent that waving hook can be used for frame is locked in the terrace structure.Hook moves in place by gravity, and part is around the bottom of pin, so that pin is fixed in the recess.

Description of drawings

With reference now to accompanying drawing, the utility model (the attention accompanying drawing might not be drawn in proportion) is usually described, in the accompanying drawing:

Fig. 1 is the transparent view that makes up hand barrow, chassis and stepwise device according to the utility model in the hand barrow structure;

Fig. 2 A-2B is the transparent view of the composite set of Fig. 1, its expression according to an embodiment of the present utility model in stand up position with fall the stay bearing plate of position;

Fig. 3 is that its expression is according to the retaining clip that is used for stay bearing plate of an embodiment of the present utility model along the partial cross-sectional view of the line 3 '-3 ' intercepting of Fig. 2 A;

Fig. 4 A-4C is the view that becomes the hand barrow structure according to combination hand barrow of the present utility model, chassis with stepwise device, the folding crate that its expression is mounted thereon;

Fig. 4 D-4F is used for folding crate is connected to view according to the alternate embodiment on combination hand barrow of the present utility model, chassis and the stepwise device;

Fig. 5 is the transparent view that becomes terrace structure according to combination hand barrow of the present utility model, chassis with stepwise device;

Fig. 6 is the lateral plan that becomes the part of terrace structure to cut away with stepwise device according to combination hand barrow of the present utility model, chassis, and the framework with device when its expression top step uses is locked into terrace structure;

Fig. 7 is the transparent view that becomes the chassis structure according to combination hand barrow of the present utility model, chassis with stepwise device;

Fig. 8 A is that it illustrates the chassis strut bar according to the fragmentary, perspective view of combination hand barrow of the present utility model, chassis and stepwise device;

Fig. 8 B is the viewgraph of cross-section of the line 8b '-8b ' intercepting along Fig. 8 A, and it is illustrated in the chassis strut bar of the stand up position of storage;

Fig. 9 A is the transparent view of separable pallet that is used for into combination hand barrow of the present utility model, chassis and the stepwise device of terrace structure or chassis structure;

Fig. 9 B is into the transparent view according to combination hand barrow of the present utility model, chassis and stepwise device of terrace structure, and it is connected with the separable pallet of Fig. 9 A;

Fig. 9 C is into the transparent view according to combination hand barrow of the present utility model, chassis and stepwise device of chassis structure, and it is connected with the separable pallet of Fig. 9 A;

Figure 10 A is the transparent view of alternate embodiment of separable pallet that is used for into combination hand barrow of the present utility model, chassis and the stepwise device of terrace structure or chassis structure;

Figure 10 B is the transparent view of separable pallet of Figure 10 A that is used for into combination hand barrow of the present utility model, chassis and the stepwise device of terrace structure;

Figure 10 C is the transparent view according to the separable pallet of Figure 10 A of combination hand barrow of the present utility model, chassis and stepwise device that is used to into chassis structure;

Figure 11 A is the transparent view of alternate embodiment at separable seat that is used for into combination hand barrow of the present utility model, chassis and the stepwise device of terrace structure;

Figure 11 B is the backplan at the separable seat of Figure 11 A;

Figure 11 C is and partial side view according to the separable seat of combination hand barrow of the present utility model, chassis and stepwise device bonded assembly Figure 11 A;

Figure 11 D is into the transparent view according to combination hand barrow of the present utility model, chassis and stepwise device of terrace structure, and how the seat of its presentation graphs 11A can be attached thereto;

Figure 12 is the transparent view of the alternate embodiment of the hinge between ladder frame and the hand barrow frame;

Figure 13-the 14th, the transparent view of the alternate embodiment of the hinge between ladder frame and the hand barrow frame;

Figure 15 is the transparent view with the alternate embodiment of the top step bonded assembly annular arm of step assembly;

Figure 16 is the rear view of the alternate embodiment of the hinge between ladder frame and the hand barrow frame, and it comprises prevents waving hook, and at this, combination hand barrow, ladder become terrace structure with the chassis device;

Figure 17 is the fragmentary, perspective view of an embodiment of the hinge shown in Figure 16, wherein the anti-hook that waves of expression;

Figure 18 is the lateral plan of an embodiment of the hinge shown in Figure 16, wherein the anti-hook that waves of expression;

Figure 19 is the top transparent view of the alternate embodiment of hinge shown in Figure 16, and at this, combination hand barrow, ladder and chassis are in the chassis structure;

Figure 20 is the transparent view of the alternate embodiment of hinge shown in Figure 16, and at this, combination hand barrow, ladder and chassis are in the chassis structure;

Figure 21 is the transparent view of the alternate embodiment of hinge shown in Figure 16, and its hand barrow frame and ladder frame are folding abreast;

Figure 22 is the transparent view of alternate embodiment of the carriage of the hinge between ladder frame and hand barrow frame;

Figure 23 is the transparent view of separable pallet that is used for into combination hand barrow of the present utility model, chassis and the stepwise device of terrace structure;

Figure 24 is the fragmentary, perspective view of antelabium of separable pallet of combination hand barrow, chassis and the stepwise device of Figure 23;

Figure 25 is the transparent view at separable seat that is used for into combination hand barrow of the present utility model, chassis and the stepwise device of terrace structure;

Figure 26 is and partial side view according to combination hand barrow of the present utility model, chassis and the separable seat of stepwise device bonded assembly;

Figure 27 is the transparent view that is used for according to the fixed connecting piece of combination hand barrow of the present utility model, chassis and stepwise device;

Figure 28 is the transparent view of the fixed connecting piece that separates with combination hand barrow, chassis and the stepwise device of Figure 27;

Figure 29 is the transparent view according to combination hand barrow of the present utility model, chassis and stepwise device, its expression refuse bag fixer;

Figure 30 is the fragmentary, perspective view according to combination hand barrow of the present utility model, chassis and stepwise device, the alternate embodiment of its expression top step, and the top step is used for the frame of device is locked into terrace structure;

Figure 31 is the end transparent view of top step shown in Figure 25;

Figure 32 is the transparent view that the stay bearing plate locking piece according to combination hand barrow of the present utility model, chassis and stepwise device is dipping;

Figure 33 is according to the stay bearing plate locking piece of combination hand barrow of the present utility model, chassis and the stepwise device transparent view in stand up position.

The specific embodiment

More completely describe the utility model below with reference to accompanying drawing, wherein illustrate part but non-whole embodiment.Really, the utility model can many different forms embody, and is not limited in the embodiment of proposition; Or rather, these embodiment that provide make disclosure file satisfy enforceable legal requiremnt.In the text, identical digitized representation components identical.

The utility model provides that high-mobility, multipurpose, wheeled vehicle moves, lifting and bracing or strutting arrangement, and this set-up diagram is shown combination hand barrow, chassis and stepwise device.Provide repertoire to concentrate in the single design according to device of the present utility model with hand barrow, chassis and ladder, and in light weight, easy to operate, and can easily be transformed into another kind of structure from a kind of structure.Description to every kind of purposes of device of the present utility model is too many, and therefore, disclosure text relates to these embodiment and believes and the most clearly expressed embodiment of the present utility model and purposes.Yet the utility model should not only limit to embodiment disclosed herein and purposes, and should be configured to comprise all notions disclosed herein and instruction.

With reference to figure 1, Versatile apparatus 10 of the present utility model is illustrated as into the hand barrow structure.Versatile apparatus comprises ladder frame 12 and hand barrow frame 14, and hand barrow frame 14 is connected with ladder frame 12 pivotly by hinge 16, so that around trunnion 18 pivots.

Ladder frame 12 comprises first elongate leg 20 and second elongate leg 22, and they interconnect at first end by U-shaped handle 24.Transverse member 26 interconnects elongate

leg

20,22 with 27 at the far-end relative with U-shaped handle 24.Step assembly 28 is connected with ladder frame 12 between

elongate leg

20 and 22 pivotly.Step assembly 28 comprises that two are got out of a predicament or an

embarrassing situation

30,31 and top step 32, and all steps interconnect by attaching parts 34, and this attaching parts 34 is connected with ladder frame 12 pivotly.Attaching parts 34 is connected with each step pivotly in both sides.Like this, when 32 rotations of top step, also rotate further following description with

backward step

30 and 31 with reference to ladder embodiment in equal mode.First pair of wheel 40 is connected with ladder frame 12 at first end near U-shaped handle 24.Second pair of wheel 42 is connected with ladder frame 12 at second end near transverse member 26.Wheel can be any suitable design, but Caster welded structure preferably.

In the embodiment shown in fig. 1, each of first pair of wheel 40 and second pair of wheel 42 taken turns by sleeve pipe (sleeve) and is connected with ladder frame 12, and this sleeve pipe rotatably cooperates around frame 12.The spring-loaded button is arranged in the framework 12, so that engage with hole in the sleeve pipe, thereby will take turns fix in position.The position of wheel locks in place is determined that by the position of hole and spring-loaded button it can be arranged in the position of expectation.Therefore, as shown in Figure 1, when 10 one-tenth hand barrow structures of device, first pair of inwardly rotation of wheel 40.

Hand barrow frame 14 comprises the transverse member 50 near near first end of the hand barrow frame 14 of hinge 16, with the handle transverse member 52 at second end of the hand barrow frame relative with first end.The stay bearing plate of installing 54 that can pivot connects at second end of hand barrow frame 14, is used to support the object that can promote or carry when using into the device 10 of hand barrow structure with box lunch.

With reference to figure 2A-2B, stay bearing plate 54 is illustrated in more detail falling position (Fig. 2 A) and upright storage position.Stay bearing plate 54 for example comprises to be used for blocking device 56 that ladder frame 12 and hand barrow frame 14 are fixed together in becoming the hand barrow structure.Blocking device 56 in illustrated embodiment comprises plate 58, and plate 58 has at an edge bonded assembly antelabium 60 with at the hook 62 of a lateral edges.Therefore, shown in Fig. 2 A, when stay bearing plate 54 is in when falling the position, antelabium 60 engages with the transverse member 27 of ladder frame 12, so that in the use that becomes the hand barrow structure ladder frame 12 is fixed on the hand barrow frame 14.Shown in Fig. 2 B, when stay bearing plate 54 was in upright storage position, hook 62 engaged with the transverse member 27 of ladder frame 12, so that when becoming the use of hand barrow structure hand barrow frame 14 is fixed on the ladder frame 12.

With reference to figure 3, spring clip 64 is connected with hand barrow frame 14, so that admit and fixed support plate 54 at upright placement location.As an alternative, can utilize magnetic latch to replace spring clip 64.Specifically, the one or more carriages with connected magnet with spring clip 64 substantially the same stationkeeping on hand barrow frame 14.Like this, when stay bearing plate 54 moves in the stand up position, the magnetic carriage will engage with stay bearing plate 54 and be fixing.

Therefore, close mutually by ladder frame 12 and hand barrow frame 14 are arranged to reference to figure 1, substantially parallel so that the elongate leg of each frame is orientated, device 10 can be configured to hand barrow.Ladder frame 12 and hand barrow frame 14 can be fixed together by blocking device 56.For helping that ladder frame 12 and hand barrow frame 14 are interfixed, breech lock 70 is arranged at least one side of device 10.Breech lock 70 can be taked any amount of multi-form, so that two frames are fixed together like that by needed.In illustrated embodiment, breech lock 70 is when ladder frame 12 and hand barrow frame 14 and the gravity latch of self-locking when together constituting the hand barrow structure simultaneously.When converting the chassis structure to, breech lock is designed to itself fall and open, and pivots in place to allow hand barrow frame 14 as handle.

Use into the device 10 of hand barrow structure in the following way,,,, thereby promote object so that around second pair of wheel, 42 these devices of pivot then away from object rotating handles 24 promptly by stay bearing plate 54 being placed under the object that will be raised and/or move.Then, come mobile object in the following way, promptly by making on 42 device 10 be rolled to the position of expectation at second pair of wheel, and be reversed lifting process, so that make object drop to ground at this.

With reference to figure 4A-4E, crate 80 can be used in combination with device 10, so that promote and carrying object.According to the utility model, crate 80 can be any appropriate configuration design-calculated crate, so that use device 10 connects and carrying.For example, to described in US Patent 4798304 collapsible crate is made amendment, to comprise crate 80 is fixed to fastener 82 on the device 10.In one embodiment, shown in Fig. 4 C, fastener 82 can be configured to be connected or Unitarily molded folder with crate 80.This folder comprises C shape recess 83, and its admittance and friction be the tube frame of hand barrow frame 14 fixedly.As a kind of alternate design, collapsible crate 80 ' is shown in Fig. 4 D-4F, and wherein fastener is configured to towards outer pullover 84, and it has admits and the fixing spindle-legged arc outer wall 85 of hand barrow frame 12 of friction.In addition, arc outer wall 84 comprises the slit 86 that is used to admit pin 88, and this pin 88 is connected towards the surface with Fig. 4 E and the hand barrow frame 12 shown in the 4F.This structure provides and installs 10 crates of more captiveing joint 80, and in some applications, this may expect.

With reference to figure 5, device 10 is depicted as terrace structure.By offside breech lock 70 and 54 releases of arc stay bearing plate,, install 10 and can easily convert terrace structure to allow hand barrow frame 14 to leave ladder frame 12 and to pivot around trunnion 18.By lockout mechanism 102, hand barrow frame 14 can be with respect to ladder frame 12 locks in place.Lockout mechanism 102 in the illustrated embodiment comprises the top step 32 that is rotatably mounted of step assembly 28.As illustrated in Figures 5 and 6, top step 32 comprises the groove 104 (seeing for example Fig. 1) of admitting the transverse member 50 (seeing for example Fig. 1) of hand barrow frame 14 when rotating to the substantial horizontal position.Lockout mechanism 102 also comprises a pair of a pair of annular arm 106 that stretches from the far-end of top step 32.Annular arm 106 is configured to transverse member 50 is guided in the groove 104, with prevent 14 rotations of ladder frame 12 and hand barrow frame away from.Groove 104 is configured to admit transverse member 50, rotates to together to prevent ladder frame 12 and hand barrow frame 14.As a kind of safety performance, when step 32 beginnings in top are rotated to level attitude, so that during with ladder frame 12 and hand barrow frame 14 locks in place, annular arm 106 engages with transverse member 50 in primary importance 108 (shown in Figure 6), so that top step 32 is (with step 30,31) become obvious inappropriate angle, unreliable like this.Then, the power of scheduled volume must be applied to the far-end of top step 32, so that transverse member 50 is entered in the groove 104 through annular arm 106.As previously mentioned, in case transverse member 50 is received in the groove 104, during as terrace structure, annular arm 106 can be operated, to prevent hand barrow frame 104 rotating further from ladder frame 12 than expectation.

Attaching parts 34 at one end rotatably connects with

step

30,31, and rotatably is connected with top step 32 at the other end, with

step

30,31 and 32 are provided

time rotation.Step

30,31 all rotatably is connected with ladder supports frame 12 in both sides with 32, and this as shown in Figure 5.When top step 30 drops to position around

transverse member

50,30,31 substantial horizontal of getting out of a predicament or an embarrassing situation, and at one end support by transverse member, support by attaching parts 34 in the opposite end, wherein step is rotatably installed around this transverse member.

In the embodiment shown in fig. 5, first pair of wheel 40 is connected with the ladder frame in above-mentioned different slightly mode with second pair of wheel 42.Specifically, wheel assembly is connected with U-shaped carriage 108, and this carriage 108 assembles around the elongate leg of ladder frame 12, and is attached thereto by screw well known in the art or rivet.This design can be particularly advantageous because it has limited the quantity of movable part, thereby and allow wheel to remove by removing fix screw from ladder frame 12, this expects in some applications.

With reference to figure 7, device 10 is depicted as the chassis structure.By will install 10 be arranged to directed towards ground towards so that two pairs of

wheels

40,42 contacts with ground, install 10 and be convertible into chassis and construct.Arrange on the ground by installing by this way, breech lock 70 automatic releases, thereby allow hand barrow frame 14 around trunnion 18 be pivoted to perpendicular towards, and with respect to ladder frame 12 into about an angle of 90 degrees.In this structure, handle transverse member 52 is as the handle operation of chassis, thereby allows the user motion and the sense of motion of operating control 10 as required.Chassis strut bar 120 is used for hand barrow frame 14 is fixed on stand up position.For example, chassis strut bar 120 is connected with hand barrow frame 14 pivotly by transverse member 50.Shown in Fig. 8 A, chassis strut bar 120 comprises U-shaped snap ring (clasp) 122.When chassis strut bar 120 during to the rotation of first end of ladder frame 12, U-shaped snap ring 122 is admitted the handle 24 of ladder frames 12.By design, the U-shaped snap ring is configured to the power that handle transverse member 52 can be accepted any horizontal direction, and chassis strut bar 120 can not shift out from handle 24.

Shown in Fig. 8 A-8B, when not in use, rotate into position between the elongate leg of hand barrow frame 14 by making the chassis strut bar, it is admitted by two relative backstops 124 in this position, and like this, chassis strut bar 120 can be stored in stand up position.Backstop 124 is preferably made by vinyon, and perhaps any other suitable smooth plastics are made, and by rivet or other suitable securing device fix in position on hand barrow frame 14.Backstop 124 is included in two arc grooves between the outstanding antelabium, and an antelabium stretches to enough distant places around the chassis strut bar, is pushed through backstop 124 to prevent it, and this is shown in Fig. 8 B.

Usually with reference to figure 9A-9C, the figure shows the heteroid embodiment of the separable pallet 130 that is used for device 10.Separable pallet 130 has the running surface 130 that is fit to fixing or support works article or workpiece.First surface 132 comprises groove 134, and this groove 134 is configured to fixing less workpiece or work article, or fixedly F﹠B or analogue.Slit 136 is arranged on an end of pallet 130, with admittance and fixation workpiece and/or work article, for example garden tool set or cleaning equipment.Recess 138 is arranged in the sidewall of pallet 130, so that pallet is fixed on on the heteroid device 10.

For example, with reference to figure 9B, pallet 130 is used to into the device 10 of terrace structure, and is positioned on the top step 32.Recess 138 is admitted the transverse member 50 of hand barrow carriage 12 and is made top step 32 and ladder frame 14 rotatable bonded assembly transverse members.If desired, one or more recesses 138 can comprise lateral slit, so that further with on pallet 130 anchor fittings 10.Wherein one or more transverse members are received in the slit, prevent when being installed on the device 10 with box lunch that pallet 130 from rotatablely moving.

With reference to figure 9C, pallet 130 diagrams are used to into the device 10 of chassis structure, and are positioned on the step assembly 28.Recess 138 is designed to admit transverse member, and this transverse member and each

step

30,31,32 match and be connected with ladder frame 12, thereby with pallet 130 fix in position.As previously mentioned, one or more recesses 138 can comprise slit, so that further with pallet 130 fix in position.Although do not require, preferably pallet utilizes known casting process (injection molding techniques) manufacturing, and utilizes polypropylene, polyethylene or other material manufacture that is fit to.

Usually referring to Figure 10 A-10C, separable pallet 150 is provided for the tray embodiments that substitutes of device 10.Separable pallet 150 comprises first 152 and by trunnion 156 and the first bonded assembly second portion 154 that can pivot.Pallet 150 comprises the groove 158 that is used to admit with fixation workpiece and/or work article.When groove 158 was illustrated as centralized positioning and becomes rectangular configuration, groove can be taked other shape, and was for example square, circle, and ellipse etc., and can be positioned on diverse location on the part 154 of the upper surface of pallet 150 and/or pallet 150.Recess 160 is arranged on the sidewall of pallet 150, so that pallet 150 is fixed on the device 10.One of them recess 160 comprises slit 162, so that engage with the transverse member of device 10, thus further fixed tray 150.

With reference to figure 10B, pallet 150 diagrams are used to into the device 10 of terrace structure.In this structure, slit 162 is admitted the transverse member that is associated with the top step 32 of step assembly 28, and simultaneously, second recess 160 is admitted the transverse member 150 of hand barrow frame 12.The second portion 154 of pallet 150 is in 152 times rotations of first, and therefore, the far-end of second portion 154 is received in the U-shaped snap ring 122 of chassis strut bar 120.Because the antelabium of the stretching, extension on backstop 124, the first 152 of pallet 150 can support relatively large weight, and the device 10 that can not tilt or topple, described backstop 124 fixedly chassis strut bar 120 makes it can not pass through hand barrow carriage 12.

In Figure 10 C, pallet 150 diagrams are used for into the device 10 of chassis structure.For the previous embodiment of pallet, recess in the sidewall of pallet 150 160 admit the

step

30,31 with step assembly 28 relevant with 32 and with ladder frame 12 bonded assembly transverse members, thereby pallet 150 is fixed on the device 10.

With reference to figure 11A-11C, graphic is the separable seat 180 that is used for into the device 10 of terrace structure.Seat 180 comprises molded seating platform and supports 184.Molded seating platform 182 comprises arc seat mechanism 186, the top bar pillar 188 and the pillar 190 of getting out of a predicament or an embarrassing situation.The support construction of topping bar becomes to place on the step 31 of step assembly 28 and on every side, simultaneously, the pillar 190 of getting out of a predicament or an embarrassing situation be configured to place get out of a predicament or an embarrassing situation on 30 and with its against.Therefore, molded seating platform 182 mates with mode and the step assembly 28 that support is sitting in the user on the seat surface 186.For additional support, supporting construction 184 can be connected with molded seating platform 182.In illustrated embodiment, supporting construction 184 comprises metal or the aluminum pipe that curves U-shaped, and is contained in the bottom of molded seating platform 182, and this is shown in Figure 11 B.Yet supporting construction 184 can any traditional mode be connected with the seat, perhaps can with molded seating platform 182 global formations.Figure 11 C represents that seat 180 is connected with the step assembly of the device 10 that is in terrace structure.In this embodiment, seat 180 is placed on gets out of a predicament or an embarrassing situation on 30,31, and it is in place to descend then, so that top bar pillar 188 and the pillar 190 of getting out of a predicament or an embarrassing situation connect with upper and lower step 31,30 respectively.

With reference to Figure 12, it illustrates the alternate embodiment of hinge 16.In this embodiment, hinge 216 is to be fixed on pivotally on ladder frame 12 and the hand barrow frame 14 with hinge 16 identical modes.Yet hinge 216 comprises slit rail 218, so that admit pin 220, this pin 220 is connected with hand barrow frame 14 pivotly at first end.Pin 220 is received in the slit rail 218 of hinge 216 of second end, so that slide therein.For example nut or the folder that is fixed on the pin can remain in the rail 218 pin 220 by device known to a person of ordinary skill in the art.

Therefore, when 10 one-tenth terrace structures of device, pin 200 is positioned at primary importance 22, and this primary importance is limited in the movement angle between ladder frame 12 and the hand barrow frame 14.This safety performance prevents ladder fall once in a while flat (falling flat).In the chassis structure, pin 220 is positioned at the second place 224, limits separating of ladder frame 12 and hand barrow frame 14 similarly at this.At last, during as the hand barrow structure, pin 220 is positioned at the 3rd position 226.The 3rd position also is a midway location, when pin between terrace structure and chassis structure during transition, pin must be through the 3rd position.Like this, but the hinge 216 independent operations or with other characteristics binding operations of the present utility model, with the safe in operation of generator 10, particularly under terrace structure.

With reference to Figure 13 and 14, the alternate embodiment of its expression hinge 16.In this embodiment, hinge 316 is to be pivotally secured on ladder frame 12 and the hand barrow frame 14 with hinge 16 identical modes.Yet hinge 316 comprises that spring-loaded keeps breech lock 320.Breech lock 320 is connected with hand barrow frame 14, and comprises two relative spring-loaded buttons 322.Hinge 316 is the U-shapeds with two parallel sides 324.Each side 324 comprises the crescent slit 326 of admitting corresponding button 322.Therefore, the device that hinge 316 provides restriction to carry move angle between ladder frame 12 and the hand barrow frame 14, thus it is flat to prevent that ladder from falling once in a while.Comprise hinge 316 although may be desirably in the both sides of device in some cases, enough in the side utilization hinge 316 of device 10.

Be configured to chassis in order to install 10, relative spring-loaded button 322 can be pushed, and enters in the slit 326 so that they no longer stretch.This allows hand barrow frame 14 to locate into about an angle of 90 degrees with respect to ladder frame 12.In order to help hand barrow frame 14 to turn back to ladder or chassis structure, enter groove 330 and be arranged on the corresponding sides of side 324 of hinge 316.Groove 330 is configured to admit button 322, when hand barrow frame 14 when ladder frame 12 moves, push it gradually with automated manner.When hand barrow frame shift moving near ladder frame 12, thereby when button 322 contacts with slit 326, button 322 releases.

With reference to Figure 15, the alternate embodiment of its expression annular arm 106.Particularly, annular arm 406 can be connected with the top step 32 of step assembly in any suitable manner, for example, and riveted joint.For annular arm 106, thereby the corresponding design effort of annular arm 406 is fixed on top step 32 on the transverse member 50 in the mode identical with annular arm 106.

Usually referring to figures 16 to 21,16 alternate embodiment is cut with scissors in its expression.In this embodiment, hinge 516 comprises U-shaped carriage 528, and its part centers on ladder frame 12 and is fixed on the ladder frame 12.U-shaped carriage 528 is connected by trunnion 532 with hand barrow frame 14, and two

frames

12,14 pivot around this pin and connect.Each U-shaped carriage 528 comprises two arcuate surfaces 520, is formed with cooresponding recess 522a and 522b in this arcuate surface, so that the opposite end of admittance and hand barrow frame 14 bonded assembly pins 526.When on two recess settings each arcuate surface 520 in the illustrated embodiment, as required, a recess is only arranged or more than two recesses also in scope of the present utility model.Recess can be in a side of each carriage 528 or in the both sides of each carriage 528, and this expects, and is fit to specific application of the present utility model.When hand barrow frame 14 and ladder frame 12 relatively moved, arcuate surface 520 allowed pin 526 transition between recess 522a and 522b reposefully.

Although diagram not, wherein crack in the hole hand barrow frame 14 in, so that a small amount of radial motion of hand barrow frame 14 with respect to pin 532 to be provided, to sell 532 and cooperate with this hole.This inwardly and outwards moves pin 526 in recess 522a and 522b.At hand barrow frame 14 not in the alternate embodiment that pin 532 cracks, but pin 526 spring-loaded, therefore, but pin 526 pressurizeds shift between recess 522a and 522b to allow pin 526.In addition, but hand barrow 14 is forced in recess 522a and the 522b so that sell 526 around the relative motion spring-loaded of pin 532.

The structure of device 10 is determined by the position of pin 526 in any recess 522a or 522b.When device construction became ladder, shown in Figure 16-18, recess 522a admitted pin 526.Prevent that waving hook 530 can be used to pin 526 is fixed in the recess 522a, in case locking apparatus 10 subsides.Hook 530 is connected with carriage 528 as follows pivotly by trunnion 529, and promptly when device becomes terrace structure to arrange, hook 530 automatically will be sold 526 and be locked in the recess 522a, thereby prevent to leave recess 522a.Hook 530 is configured to by gravity and moves into this latched position.As an alternative, hook 530 can be a spring-loaded, so that hook is offset to a position, the relative motion at this locking position hand barrow frame 14 and ladder frame 12 promptly, is locked into fixture construction with device.In case it is in place that hook 530 moves, device 10 is locked into terrace structure.The anti-hook 530 that waves can be graphic basically J-shaped structure, and perhaps any other suitable shape is disengaged to allow its anti-shotpin and recess 522a.

For from the terrace structure modifier, hook 530 must be disengaged with pin 526.Hook 530 can be disengaged with pin 526, for example, and by promoting top steps 32 from transverse member 52 and making top step 32 be elevated to as shown in figure 19 stand up position.Particularly, engage with the vertical stretching portion 536 of hook 530, and make hook 530 pivots leave pin 526, thereby allow pin 526 and recess 522a to be disengaged at the outside arm 534 that stretches of the far-end of top step 32.As an alternative, can by other devices that are fit to for example by button or with one or more hook 530 bonded assemblys hand-drive hook 530, so that make its pivot leave pin 526.Hook 530 can be used on one or two hinge 516 of stepwise device (composite set for example disclosed herein).

When pin 526 and carriage 528 were disengaged, hand barrow frame 14 can move to hand barrow structure or chassis structure with respect to ladder frame 12.As shown in figure 20, hand barrow frame 14 is removable, moves to recess 522b so that sell 526 from recess 522a.Recess 522b provides for installing 10 chassis structure.Recess 522b is wideer than recess 522a, thereby allows pushing away (upright basically) position and drawing location hand barrow frame between (falling basically) position.Yet if desired, recess 522b can be measure-alike with recess 522a.As shown in figure 21, the extending part 536 of hook 530 provides a plane surface again, so that at chassis structure lower support top step 32 it is not too pivoted during use.At last, hinge 516 comprises also and hand barrow frame 14 bonded assembly ramps (ramp) 540 that with protection carriage 528, pin 526 and hook 530 are not subjected to load, and is providing relative pulsation-free to support from hand barrow frame 14 to the transition region of hinge 516.

An alternate embodiment of carriage 528 usually as shown in figure 22, carriage 600 comprises the arcuate recess 610 that has recess 612 along an edge.Recess 612 is positioned to allow the particular configuration of hand barrow frame 14 and ladder frame 12.And groove 610 can have than diagram Duos or few recess 612, to obtain the result of expectation.

Can move along the groove 610 of carriage 600 with hand barrow frame 14 bonded assembly pins 618, and in any recess 612 locks in place.When pin 618 when groove 610 moves, hand barrow frame 14 moves radially with respect to carriage 600, moves into or shift out recess 612 to allow pin 618.In addition, pin 618 slidably arrives the end of groove 610, so that other structure of hand barrow frame 14 and ladder frame 12 to be provided.This structure comprises the ladder pattern, cart pattern, hand barrow pattern, carriage pattern, furniture chassis pattern and storage pattern.

In Figure 23-24, represented the alternate embodiment of separable pallet 150.In this embodiment, pallet 700 comprises first 702 and second portion 704.First end 706 of second portion 704 is connected with the far-end 708 of pivot stay bearing plate 54.In the illustrated embodiment, can be connected with pivot stay bearing plate 54 by lip member shown in Figure 24 710, this lip member 710 is arranged in first end 706 of second portion 704.Lip member 710 is locked on the far-end 708 of pivot stay bearing plate 54.Recognize that as those of ordinary skill in the art pallet 700 can for example be used breech lock in any suitable manner, folder, pin, couplings etc. are connected with stay bearing plate 54.And, not to be connected with pivot stay bearing plate 54, pallet 700 can connect with additional transverse member or hand barrow frame itself.

With reference to figure 25-26, an alternate embodiment at its expression seat 180.The alternate embodiment at seat 800 and intermediate step 31 connect by hook 814, and this hook 814 is suspended on and makes on intermediate step 31 and the ladder frame 12 bonded assembly transverse members 816.Recognize that as those of ordinary skill in the art breech lock can be for example used at seat 800 in any suitable manner, folder, pin, couplings etc. are connected with intermediate step 31.And, not to be connected with intermediate step 31, seat 800 can itself connect with additional transverse member or ladder frame 12.

Seat 800 is supported by leg frame 815, and leg frame 818 is a U-shaped at first end 817, and reaches the top 818 at seat 800 at second end, and here shank is installed on the seat 800.

Device 10 also can comprise fixed connecting piece 900.Shown in Figure 27-28, fixed connecting piece 900 is to be used for storage tool for example to shovel, rake, the device of broom etc.Fixed connecting piece 900 is made up of U-shaped carriage 922, and this carriage 922 connects near first end 924 of hand barrow frame 14.Carriage 922 comprises panel 926, and panel 926 has the strut member 928 that is connected carriage 922 every ends.Each strut member 928 has the arched support slit 930 of admittance transverse member 50 as shown in the figure.

Move when the weight of attaching parts 900 (if with bonded assembly instrument) makes fixed connecting piece 900 pivot around transverse member 50, when forcing arched support slit 930 against hand barrow frame 14, arched support slit 930 makes carriage 922 firmly be connected with hand barrow frame 14.Utilize arched support slit 930, carriage 922 hangs from the transverse member 50 of first end 924 that is positioned at hand barrow frame 14.Those of ordinary skill in the art will recognize that carriage 922 can for example be used breech lock in any suitable manner, folder, and pin, couplings etc. are connected with hand barrow frame 14.And, not to be connected with hand barrow frame 14, carriage 922 can be connected with additional transverse member or ladder frame 12.

Clamping device 932 is from the panel 926 outstanding step assemblies 28 that leave of carriage 922.Clamping device 932 is used for grasping and regular user and wants the instrument stored.And the panel 926 of carriage 922 can have than clamping device more or less 932 shown in Figure 26.

With reference to Figure 29, device 10 can comprise refuse bag fixer 950.Refuse bag fixer 950 can be connected with top step 32, and outwards stretches on the direction of hand barrow frame 14.Refuse bag fixer 950 can utilize any proper device, and for example blocking device or clamping device are connected with the downside or the top of top step.Refuse bag fixer 950 can be a U-shaped device basically, and it is made by metal, plastics or any other suitable material.The bottom of refuse bag can be inserted in the refuse bag fixer 950, and the top of refuse bag collapses on the edge of refuse bag fixer.Folder 960 can be used to refuse bag is fixed on the refuse bag fixer 950.

An alternate embodiment that is used for fixing top step 32 is usually shown in Figure 30-31.In this embodiment, top step 32 comprises that at the far-end of step J-shaped keeps hook 1050, so that engage with the transverse member 1052 of hand barrow frame 14.Top step 32 drops on the transverse member 1052, and snapped into place in the groove 1059 on step 32 downsides, thereby through keeping hook 1050.Keep hook 1050 to be discharged by activation button 1054, this activation button 1054 makes and keeps hook laterally to slide, so that itself and transverse member 1052 are disengaged.In addition, metal sheet 1056 can connect on top step 32 times and near its two side-walls at least, and is crooked under the weight effect to prevent step.

Shown in figure 32, device 10 also comprises stay bearing plate lock 1060, so as or upright or fall stationkeeping stay bearing plate 54.Lock 1060 with the far-end bonded assembly pin 1064 of hand barrow frame 14 on rotation.When stay bearing plate when launching or falling engagement position, first end 1066 of lock 1060 slides on the part of stay bearing plate 54, so that make stay bearing plate keep (for example perpendicular to hand barrow frame 14) to engage.By second end, 1068 application of forces, so that around pin 1064 rotation locks 1060, stay bearing plate can discharge from engage position to lock 1060.

As shown in figure 33, when stay bearing plate 54 does not engage (promptly in stand up position), second end 1068 of lock 1060 slides on the sidepiece of stay bearing plate 54, so that make stay bearing plate be fixed on stand up position.By first end, 1066 application of forces to stay bearing plate, so that around pin 1064 rotation locks 1060, stay bearing plate 54 can discharge from upright or storage location.

For the person of ordinary skill of the art, will recognize that here of the present utility model many modifications and other embodiment of proposing, and about these revise and the invention of other embodiment have fwd illustrate with relevant accompanying drawing in the benefit brought of instruction.Therefore, be appreciated that the utility model is not limited only to certain embodiments disclosed herein, also be included in modification and other embodiment in the appended claims scope.Although adopt specific term here, in fact, they are used for general description, and unrestricted.

Claims

A high-mobility, multipurpose, wheeled vehicle move, lifting and bracing or strutting arrangement, it is characterized in that it comprises:

Has the spindle-legged ladder frame that the handle that is positioned at first end and a subtend second end stretch;

Has the spindle-legged hand barrow frame that stretches to second end;

With a plurality of steps of ladder frame bonded assembly;

Make ladder frame and hand barrow frame at least one hinge of bonded assembly pivotly; With

Pivotly with the anti-hook that waves that is hinged.
2. as claimed in claim 1ly move, lifting and bracing or strutting arrangement, it is characterized in that the top step of a plurality of steps is connected with the ladder frame pivotly.
3. as claimed in claim 2ly move, lifting and bracing or strutting arrangement, it is characterized in that in described a plurality of step one of them comprise outward extending have be enough to make the arm of preventing waving the length that hook is disengaged when entering stand up position when pivoting.
4. as claimed in claim 1ly move, lifting and bracing or strutting arrangement, it is characterized in that described anti-to wave hook be J-shaped.
5. as claimed in claim 1ly move, lifting and bracing or strutting arrangement, it is characterized in that described hinge comprises the U-shaped carriage with at least one recess, wherein said recess and pin joint, this pin is connected with described hand barrow frame.
6. as claimed in claim 5ly move, lifting and bracing or strutting arrangement, it is characterized in that describedly anti-ly waving hook described pin being fixed in the described recess.
7. as claimed in claim 1ly move, lifting and bracing or strutting arrangement, it is characterized in that the anti-device that waves the excessive rotation of the step that is used to stop the step assembly when hook comprises into the chassis structure.
A high-mobility, multipurpose, wheeled vehicle move, lifting and bracing or strutting arrangement, it is characterized in that it comprises:

Has the spindle-legged ladder frame that the handle that is positioned at first end and a subtend second end stretch;

The hand barrow frame exists, and it is connected with the ladder frame pivotly at first end, and elongate leg stretches to second end;

With hand barrow frame bonded assembly pin;

With ladder frame bonded assembly step assembly, this step assembly has pivotly and a plurality of steps of elongate leg bonded assembly;

Make ladder frame and at least one hinge of hand barrow frame bonded assembly, this hinge comprises a carriage, and this carriage has arcuate surface, and this arcuate surface comprises at least one recess, therefore, and by finger setting is come the structure of modifier at least one recess; With

With the anti-hook that waves that is hinged, the wherein anti-local bottom around pin of hook of waving is so that be fixed on pin in the recess pivotly.
9. as claimed in claim 8ly move, lifting and bracing or strutting arrangement, it is characterized in that the top step of a plurality of steps is connected with the ladder frame pivotly.
10. as claimed in claim 9ly move, lifting and bracing or strutting arrangement, it is characterized in that in described a plurality of step one of them comprise outward extending have be enough to make the arm of preventing waving the length that hook is disengaged when entering stand up position when pivoting.
11. as claimed in claim 8ly move, lifting and bracing or strutting arrangement, it is characterized in that described anti-to wave hook be J-shaped.
12. as claimed in claim 8ly move, lifting and bracing or strutting arrangement, it is characterized in that the anti-device that waves the excessive rotation of the step that is used to stop the step assembly when hook comprises into the chassis structure.
13. a stepwise device is characterized in that it comprises:

Has the spindle-legged ladder frame that the handle that is positioned at first end and a subtend second end stretch;

The hand barrow frame, it is connected with the ladder frame pivotly at first end, and elongate leg stretches to second end;

Be attached to the pin on the hand barrow frame;

With ladder frame bonded assembly step assembly, this step assembly has pivotly and a plurality of steps of elongate leg bonded assembly;

Make ladder frame and at least one hinge of hand barrow frame bonded assembly, this hinge comprises a carriage, and this carriage has at least one recess, and this recess docks with pin, so that ladder frame and hand barrow frame are fixed on the fixed position; With

With the anti-hook that waves that is hinged, the wherein anti-local bottom around pin of hook of waving is so that be fixed on pin in the recess pivotly.
14. stepwise device as claimed in claim 13 is characterized in that the top step of a plurality of steps is connected with the ladder frame pivotly.
15. stepwise device as claimed in claim 14, it is characterized in that in described a plurality of step one of them comprise outward extending have be enough to make the anti-arm that waves the length that hook is disengaged when entering stand up position when pivoting.
16. stepwise device as claimed in claim 13 is characterized in that described anti-to wave hook be J-shaped.
17. stepwise device as claimed in claim 13 is characterized in that the anti-device that waves the excessive rotation of the step that is used to stop the step assembly when hook comprises into the chassis structure.