CN1174147A

CN1174147A - Stairs handcart

Info

Publication number: CN1174147A
Application number: CN 96116468
Authority: CN
Inventors: 崔世泰
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-08-19
Filing date: 1996-08-19
Publication date: 1998-02-25

Abstract

The heavy-laden stairs handcart includes long hand crank and spider support connected via transmission to the crank. Reciprocating and pushing the crank through small force, the spider rotates in two direction to climb stairs. The two pairs of spiders and the tray are connected with equal-phase transmission, so that two pairs of spiders are synchronous and the tray is maintained horizontally. The tray may be also suspended. When the transmission has shaft coupling, the spiders rotate in one direction during climbing. The said stairs handcart may be also motored.

Description

Cart for travelling up or down stairs

The present invention relates to the vehicle or the device that can on stair or outdoor step, travel.

Usually cart for travelling up or down stairs comprises vehicle frame and star-wheel wheel component, star-wheel comprise on the support that is connected on the vehicle frame and the support with several rotation steamboats.The dilatory vehicle of operating effort (manpower) is climbed the building, and this force mechanism is difficult to reach the labor-saving effect with mechanics principle, and operation is effort.

The invention provides a kind of operating effort force mechanism can be because of mechanics principle labour-saving cart for travelling up or down stairs, makes rapid operation.

For achieving the above object, the scheme that the present invention takes is that the operating mechanism that limited unit of the driving link that comprises output torque of being linked in sequence, drive disk assembly, support constitutes is set on cart for travelling up or down stairs, driving link contains the rotatable parts of a connection vehicle frame, utilize the less operating effort of the principle of work and power to rotate this parts application of force, through transmission the support that connects vehicle frame is rotated together and climb the building.

Two parts hole axles (3) connect the support holes be meant with the axle (3) of one of axle (3) and the two or two bands the two are connected, and make a dead axle line rotation on another.When the rotatable parts of support and driving link all can be dynamically connected with vehicle frame, the unit that aforesaid operations mechanism comprises is: driving link, drive disk assembly (containing one of chain, band, gear, worm and gear, connecting rod, positive drive), support, or increase ratchet in these unit again.Driving link is long rocking handle (manually) or motor.Its rotatable parts (rocking handle itself or motor shaft) that can the hole axle connect any parts preferably link to each other with vehicle frame through transmission again and make the vehicle single degree of freedom.Connected rocking handle and vehicle frame can be dynamically connected because of but relative motion is called.

When all directly being rigidly connected with vehicle frame when support with as the long rocking handle of driving link, the unit that aforesaid operations mechanism comprises is long rocking handle, positive drive, support.

The present invention also makes vehicle ' steadily, reliably with little power control energetically.

The invention will be further described below in conjunction with drawings and Examples (being called for short example).

Fig. 1, the star-wheel constructional drawing.

Fig. 2, the K of Fig. 1 is to view.

Fig. 3, star-wheel climb building kinematic principle figure.

Fig. 4, star-wheel climb building principle of dynamics figure.

Fig. 5, the K of Fig. 7 is to view.

Fig. 6, Fig. 5 K operating mechanism part after the view dextrorotation turn 90 degrees.

Fig. 7, example 1 constructional drawing.

Fig. 8, example 1 operating mechanism power schematic diagram.

Fig. 9, example 1 power schematic diagram.

Figure 10, example 2 constructionals drawing.

Figure 11, example 3 constructionals drawing.

Figure 12, the K of Figure 11 is to view.

Figure 13, the kinematic principle figure of example 4,5.

Figure 14, routine 5K is to figure.

Figure 15, example 4 constructionals drawing.

Figure 16, example 5 constructionals drawing.

Figure 17, example 4 power schematic diagrams.

Figure 18, example 5 power schematic diagrams.

Figure 19, example 6 constructionals drawing.

Figure 20, the power schematic diagram of example 6.

Figure 21, the I-I cutaway view of Figure 19.

The power schematic diagram of Figure 22, example 7.

The partial view of Figure 23, example 7.

Figure 24, example 1 is improved figure.

Figure 25, example 3 is improved figure.

Figure 26, example 4 is improved figure.

Figure 27, example 13.

Figure 28, example 8.

Figure 29, example 9.

Figure 30, example 10.

Figure 31, example 11.

Figure 32, example 12.

Fig. 1, the 2nd, star wheel structure, star-wheel (11) comprise support (14), zero or limited steamboat (8) and axle (12) thereof.Support (14) is assemblied on the axletree (3), and the line of centers (abbreviation axis) of axle (3) is carriage center with the surperficial intersection point E of support (14).With E n the bearing hole (13) (m, n=0,1,2...., m=n=2 among the figure) that respectively distributing on m the concentric circles (19) in the center of circle.Steamboat (8) is assemblied on the support (14) by axle (12), bearing hole (13), can rotate by dead axle on support.This star-wheel divides star-wheel m level n.Support when climbing the building (14) just is not straight bracket if do not contact with the stair face, if (the GH arc is a contact portion among Fig. 1 in contact, be profile) and roll at tread and just to be bent support, climb the building owing to only depend on bent support also can roll at tread, steamboat (8) is not an imperative, so can m=n=0, represent no steamboat (8).Fig. 3 is that star-wheel is climbed building kinematic principle figure, the reference position of support (14) and two steamboats (8), (8 ') be steamboat (8), (8 ') respectively at C, D, the position, this angle of support is remembered work (8)=C, (8 ')=D mutually.Two kinds of methods are arranged, and every method is stair climbing (26) in two steps.First kind: a, by (8)=C, (8 ')=D, support changes (clockwise) to (8)=V, (8 ')=D around the D cw; B, support is clockwise and move to right to (8)=F, (8 ')=V.Second kind: a, by (8)=C, (8 ')=D, support reverses and moves to right to (8)=D, (8 ')=V; B, support is clockwise and move to right to (8)=V, (8 ')=F.These two kinds of methods are unidirectional rotation formula and two-way rotary type respectively.Fig. 4 is a principle of dynamics.Also in two kinds of situation.A kind of power of being F overcomes gravity P.F=PsinB, B are the tangent directional angle of the E locus of points.Stair (26) inclination angle is A.Another kind is that moment M overcomes the square of P to the strong point.

Fig. 7,5,6,8, the 9th, embodiment 1, and operating mechanism connects (Fig. 8) by support (14), drive disk assembly (31), long rocking handle (7).Drive disk assembly (31) is interpreted as positive drive herein, and promptly two supports (14) directly link to each other with rocking handle (7), is equal to three parts (Fig. 6) on the same rigid body, and vehicle frame (1) band is used for bearing hole (2), the bracket (15) of bearing axle (3) in addition.Rocking handle (7) and support (14) can rotate around axis (21).Car load power schematic diagram is seen Fig. 9.Fig. 5, climb Lou Shiren after, Che Zaiqian, left hand walker frame (1) makes it that fixed angles position phase be arranged all the time, and preceding by tread.The right hand alternately down by (reverse), on lift (clockwise) rocking handle (7), this rotation makes the two-way rotary type of support (14) climb the building through positive drive.Rocking handle (7) is long rocking handle, and the distance of (herein being axis (21)) is greater than 25 centimetres (more preferably greater than 40 centimetres) promptly from handle to the rocking handle rotating shaft.Star-wheel contains the unequal round crop rotation steamboat of two diameters, little wheel shaft is equal or unequal to axle (3) distance.Figure 10 is embodiment 2, and operating mechanism is linked to each other by support (14), chain transmission part, rocking handle (7).The power schematic diagram is still Fig. 8,9.Sprocket wheel (4), (5) use axle (3), (10) to link to each other with support (14), rocking handle (7) respectively.Axle (10) is supported by the bearing hole (9) on the vehicle frame (1).Rocking handle (7) rotates around the line of centers dead axle of bearing hole (9).Power principle, method of operation are all identical with example 1.Figure 11, the 12nd, example 3, operating mechanism by

Support (14), four connecting rod drive disk assemblies, the rocking handle (7) be made up of bar (18), (17), (28), (20) link to each other.Its king-rod (17), (20), (28) link to each other with rocking handle (7), support (14), vehicle frame (1) respectively.The rotation of rocking handle (7) rotates support (14) through the connecting rod transmission.Power principle, the method for operation of example 1,2,3 are identical.This method of operation is called for short one-handed performance.During two-way rotation, the also available axle of the two stands (14) on the same axletree (3) (3) bar (47) in addition links to each other, as long as do not stopped (Fig. 6,14) by vehicle frame etc. when bar (47) rotates with support.Figure 15 example 4, axis (21 ') locates to install axletree (3 '), star-wheel (11 ') (preferably 1 grade of 3 fens star-wheel) on the vehicle frame of example 1,2,3, and bimanualness is pressed together and lifted rocking handle and push away loading center of gravity preferably close spool (3), the two-way rotation of support (14), support (14 ') unidirectional rotation.The adjusting of axle (3), (3 ') distance is with example 5.Example 5 (Figure 16) operating mechanism is Figure 18, and axletree (3 '), star-wheel (11 ') promptly are installed in the bearing hole (2 ') that axis (21 ') is located on the vehicle frame of example 1 (or example 2,3), and support (14), (14 ') link to each other by drive disk assembly.Preferably S (integer) the level connecting rod transmission of this drive disk assembly, four bars of every grade four connecting rod are formed parallelogram (this routine S=2, it is isometric and parallel that two-stage four connecting rods are respectively bar (29), (30), (36), (37) and bar (29 '), (30 '), (36 '), (37) its king-rod (29), (37), (29 '), and bar (29), (29 ') link to each other with support (14), (14 ') respectively.So rocking handle, drive disk assembly, support (14 ') are linked in sequence.Star-wheel that star-wheel (11), (11 ') are preferably identical and support (14) and (14 ') are with the position, angle mutually.The distance of axletree (3), (3 ') preferably can be regulated with stair.Here use the sleeve (38) and the tightening screw (39) that link to each other with bearing hole (2 ') to regulate.During operation both hands alternately down by, on lift rocking handle (abbreviating conjoined manipulation as) and make two stands (14), (14 ') two-way rotation climb building (Figure 13).Figure 19,20, the 21st, example 6, operating mechanism is support (14), chain transmission part, is linked to each other with ratchet (33), the rocking handle (7) that inner ring (23) is formed by the outer ring (32) of being with ratchet (22).Wherein rocking handle (7) links to each other with inner ring (23), and outer ring (32) link to each other with sprocket wheel (5).Support (14) links to each other with sprocket wheel (4).When rocking handle (7) was clockwise, inner ring (23) did not link to each other, disconnects (making ratchet break) with outer ring (32); Continuous, the positive drive (making ratchet lead to) of inside and outside circle during reverse.This outer support (14), by the band ratchet (24) inner ring (34) also link to each other with ratchet (35), the vehicle frame (1) that outer ring (25) are formed.Its medium-height trestle (14) links to each other with inner ring (34), and vehicle frame (1) links to each other with outer ring (25).The inside and outside circle of ratchet (35) linked to each other when support (14) was clockwise, disconnected during reverse.Dynamic process is: ratchet (33) was logical when rocking handle (7) reversed, and ratchet (35) is disconnected, so sprocket wheel (4), (5), support (14) reverse, overcomes gravity vehicle frame is risen.Ratchet (33), (35) were respectively disconnected, logical state when rocking handle (7) was clockwise, and the clockwise of rocking handle (7) can not descend to pass, and because of left hand walker frame (1), its changeless angle position mutual-assistance support (14) keeps position, original angle phase, can not rotate.Obviously support is that the unidirectional rotation formula is climbed the building.If each rocking handle (7) that reverses all makes support (14) forward balance position in example 6, as (8 ') among Fig. 3=D, (8)=V.Then ratchet (35) can not wanted, and promptly support (14) and vehicle frame (1) disconnect forever.Example 6 also can be imitated example 4,5 and is with two axletrees (3), (3 '), imitative Figure 26,27 folding stands.

The support (14) that above-mentioned each routine axis (21) is gone up star-wheel also can link to each other with the drive disk assembly that contains one of chain, band, gear, worm and gear, connecting rod (31), motor (16) order through another branch road simultaneously, improving back example 6 (Figure 20) like this becomes example 7 (Figure 22), and structure is seen Figure 23.The power of motor (16) is passed to support (14) via the drive disk assembly that sprocket wheel (4 '), (5 '), chain (6 ') are formed, as auxiliary power or major impetus by axle (10 ') output.The example 1,6,2,3 of one-handed performance rocking handle can be improved to bimanualness, as long as the bracket (15) on the vehicle frame (1) is arranged on axletree (3) below, thereby frame mass centre makes bracket be in suspension status in axle (3) below, vehicle frame (1) has the stable equilibrium, and need not hand steeredly hold.Example 5, example 4 also can make bracket (15) be in suspension status.After example 1,3,4,5 is improved respectively is Figure 24,25,26,27.Vehicle frame has been made into collapsible at Figure 26,27, vehicle frame comprises the triangle that constitutes with 3 hinges (43) bonded assembly bars (40), (41), (42), two parts of vehicle frame (1) link to each other with bar (40), (41) respectively, it is folding that bar (42) can be pulled down the two parts that make vehicle frame, and bar (42) adjustable in length is to change the distance of axle (3), (3 ').Bar (37) links to each other with vehicle frame (1) by hinge, thereby can replace with steel wire or rope by bar (30), (36) (30 '), (36 ') of pulling force.Example 1,2,3 improved type cars are connected with support (14) hole axle (3) with the vehicle frame that bracket has just connected, vehicle frame be suspended on the axle (3) below, cry the suspension.The vehicle frame (1) of example 1,2,3 also can all be rigidly connected with support (14), be (Figure 28) of just having connected, its bracket (15) just connects (Figure 28) with vehicle frame or the hole axle is connected (Figure 27), and axletree (3) loses with axis (21) and has meaning, and rocking handle length is defined as the distance of handle to nearest little wheel shaft.The vehicle frame stable equilibrium who just connects, hangs need not hand steeredly hold when climbing the building on support, can bimanualness presses together to lift and push away rocking handle and make the two-way rotation of support climb the building.Star-wheel can contain 2S (S=1,2,3 ... Figure 25 S=2, Figure 28 S=1) individual steamboat.Support has S steamboat (Figure 25 is steamboat (8 '), (8 ), and Figure 28 is steamboat (8 ')) to be supported on the S level ladder that reduces gradually successively when reversing, other S steamboat is supported on the S level ladder that raises gradually successively when clockwise.The once contrary clockwise and support that the moves to right one-level ladder that climbs.When star-wheel contain two can (Fig. 3) or cannot (Figure 28) stride stand on the one-level tread, when overlapping (Figure 30 takes turns 8 ", 8 ) or nonoverlapping steamboat; the diameter of preceding steamboat any between the two between 0 centimetre, 8 centimetres, 20 centimetres, 90 centimetre four abbreviates as between 0,8,20,90 centimetre.Little wheel diameter poor before the back, wheelspan (27) and axle 3 to the support 14 two little wheel bases from difference respectively-60,0,30,70, between-90,0,25,90 and 0,5,10,90 centimetres.Steamboat (8) itself also can have star wheel structure, is called the component wheel.Two steamboats (8) of the improved type of example 1 (Figure 24) star-wheel are the circle wheels, and (Figure 29 is seen in 11 "), (11 ') also can to change two components wheel into.Its neutron star wheel (11 ") has support (14 "), (8 "), (8 ), component wheel (11 ') has support (14 '), steamboat (8), (8 ') to steamboat.Support (14 "), (14 ') are continuous with four connecting rods (bar (29), (29 '), (36) and bar (30) that each links to each other with support (14 "), (14 '), (14)).The vehicle frame (1) that has chaise longue (as bracket (15)) is suspended on the axletree (3) of star-wheel support (14) supporting.Bimanualness presses down and pushes away rocking handle (7) translation together and lifts support (14 ') to two steamboats (8), (8 ') and step on the one-level ladder simultaneously, lifts and pushes away rocking handle (7) translation on then and lift support (14 ") and climb up the one-level ladder simultaneously to steamboat (8 "), (8 ).Figure 29,16 structure essence are identical, all be arranged on two star-wheels on the pedestal (the former support 14, latter's vehicle frame 1) (the former component wheel 11 ", 11 ', latter's star-wheel 11,11 ') link to each other through drive disk assembly.So with Figure 16 and improve term star-wheel 11,11 in the comment of Figure 27 ', vehicle frame 1 respectively changes component wheel 11 into ", 11 ', support 14 just can be used for illustrating Figure 29 and improvement Figure 30 thereof.Two

steamboats

8,8 among Figure 29 ', its position, axial connecting line angle is mutually constant when climbing the building with underlined 8 two steamboats among Figure 16.It is right that two steamboats like this are called wheel.Wheel stands on the two-stage tread striding as Figure 29,16.Or with Figure 29,16 are modified into Figure 30, stride after 31 to stand on the one-level tread.The wheel that belongs to (son) star-wheel is purely taken turns rightly to crying, and to mix wheel right otherwise cry.Can with 1 or 2 among Figure 31 mix wheel to change over pure take turns to and become Figure 32, Figure 29.Figure 32 is that support 14 is with a sub-star-wheel 11 " and steamboat 8 ', a steamboat 8 of support 14 ' only be with ".This change also is applicable to Figure 16.The center shaft that Figure 30 has just connected support 14 " vehicle frame 1 be connected with support 14 hole axles 3, axle 3 also is a support 14 ".Figure 30,31 respectively have 2 grades, 1 grade of equipotential phase connecting rod, two (son) star-wheel support that is in transmission connection.Wheel is to all being level position phase among Figure 30-32 on level land or stair, and this is taken turns linking to each other with the bar 36 (Figure 31) that just connects bracket 15 or 37 (Figure 30) through the transmission of parallelogram equipotential phase connecting rod.Make bracket level position phase all the time.Fifth wheel can belong to (Figure 30,31) to the transmission of bracket or not belong to the transmission that connects two (son) star-wheel.Wheel refers to the mean diameter of two steamboats to diameter.Taking turns right height is pure the wheel affiliated component wheel center shaft 12 to two steamboat lower edge average height (Figure 32) or the right diameter of mixed wheel.The right diameter of front-wheel any between the two between 0 centimetre, 8 centimetres, 20 centimetres, 90 centimetre four abbreviates as between 0,8,20,90 centimetre.Back front-wheel is poor to diameter, back front-wheel to the difference of height and axle 3 to the support 14 two steamboat axle lines apart from each-60,0,30,70, between-90,0,25,90 and 0,5,10,90 centimetres.Wheel is to being overlapping (Figure 30 trailing wheel to) or nonoverlapping (all the other take turns to).With reference to the star-wheel among Figure 32 11, steamboat 8 among Figure 28 ' also can be component wheel with two circle wheels.Term " position phase " also can change " phase place " into herein.

Motor 16 driving arms 14 are climbed the building among Figure 23.Motor also can drive among Figure 30 at least two through transmission and belong to the right steamboats 8 of different wheels ", 8 roll forward, make on the vehicle level land and travel, run into stair and climb the building.Support 14 two-way rotations when climbing the building, and need not the people push away.

The driver of belt length rocking handle is moving downstairs the time, can between the parts of any two relative motions such as Figure 16 support 14 and vehicle frame damping be set and impact to reduce.Damping is thrown off when climbing the building, does not influence two parts relative motions.

Claims

1, a kind of cart for travelling up or down stairs, comprise that the m level n that has a limit rotation steamboat on vehicle frame, the support (14) divides star-wheel (11), it is characterized in that: this car also comprises the operating mechanism that limited unit of the driving link that is linked in sequence, drive disk assembly, support (14) constitutes, driving link comprises the rotatable parts that connect vehicle frame, operating effort rotates these parts, through the drive disk assembly transmission support (14) that connects vehicle frame is rotated together.

2, cart for travelling up or down stairs according to claim 1, it is characterized in that: described drive disk assembly comprises one of following transmission: chain, band, gear, worm and gear, connecting rod, positive drive, driving link comprises long rocking handle or motor, its rotatable parts and support (14) all can be dynamically connected with vehicle frame, the rocking handle rotating shaft to other end grip distance greater than 25 or 40 centimetres.

3, cart for travelling up or down stairs according to claim 2 is characterized in that: also comprise ratchet (33) in the unit of operating mechanism, driving link comprises long rocking handle, only long rocking handle during along certain direction rotation support (14) rotate therewith.

4, cart for travelling up or down stairs according to claim 2 is characterized in that this car comprises two supports (14) that link to each other, rotate in fixed axis around axletree line (21) with the bar (47) beyond axle (3) or its.

5, cart for travelling up or down stairs according to claim 4 is characterized in that: also comprise the star-wheel (11 ') that has a limit steamboat on the support (14 '), support (14 ') is connected with vehicle frame hole axle (3 ').

6, cart for travelling up or down stairs according to claim 4 is characterized in that following a or b, a) also comprises and vehicle frame hole axle (3 ') bonded assembly support (14 '); Respectively be with two circle steamboats with equipotential phase drive disk assembly bonded assembly two supports (14,14 '), or band contains components wheel and a round steamboat of two circle steamboats, another is with a round steamboat; With one of following four,

1 ' described drive disk assembly contains the transmission of integer level connecting rod;

2 ' described drive disk assembly contains one-level four connecting rods;

3 ' described drive disk assembly contains four connecting rods that two-stage is respectively bar (29), (30), (36), (37) and bar (29 '), (30 '), (36 '), (37), its king-rod (29), (29 ') link to each other with support (14), (14 ') respectively, and bar (37) links to each other with vehicle frame by hinge;

4 ' vehicle frame comprises the triangle that constitutes with 3 hinges (43) bonded assembly bars (40), (41), (42), and two parts of vehicle frame (1) link to each other with bar (40), (41) respectively, and bar (42) makes two parts of vehicle frame folding; B) support (14) is with two supports (14 ", 14 ') with equiphase drive disk assembly bonded assembly component wheel; And changing 1 of feature a '-4 ' medium-height trestle (14,14 ') into support (14 ", 14 '), vehicle frame and vehicle frame (1) all change the content that support (14) is explained into; Also have except that above-mentioned a or b, wheel is to having stated the equipotential phase transmission of two star-wheel support drive disk assemblies and linked to each other with bracket through being contained in or not being contained in connection; Wheel stands on one-level or the two-stage tread striding; Overlapping or not overlapping; Front-wheel is to diameter, and back front-wheel is poor to diameter, back front-wheel to the difference of height and axle (3) to the last two steamboat axle lines of support (14) apart from each 0,8,20,90 ,-60,0,30,70, between-90,0,25,90 and 0,5,10,90 centimetres.

7, cart for travelling up or down stairs according to claim 4 it is characterized in that star-wheel contains two wheel shafts to axletree (3) distance and equates or unequal steamboat, and two steamboats is the unequal circle wheels of diameter.

8,, it is characterized in that containing long rocking handle and the anti-damping of impacting downstairs according to the described cart for travelling up or down stairs of claim 4,6 or 7.

9, cart for travelling up or down stairs according to claim 1 is characterized in that: described drive disk assembly is positive drive, and driving link is long rocking handle; Long rocking handle, support (14) all is rigidly connected with vehicle frame.

10, according to claim 2,4 or 9 described cart for travelling up or down stairss, it is characterized in that bracket is connected or just connects with vehicle frame hole axle, when star-wheel contain two can maybe cannot stride stand on the one-level tread, during overlapping or nonoverlapping steamboat, the diameter of preceding steamboat, little wheel diameter is poor before the back, wheelspan (27) and axle (3) to support (14) last two little wheel bases from difference respectively 0,8,20,90, between-60,0,30,70,0,25,50,90 and 0,5,10,90 centimetres.