CN108738317A - Lifting gear - Google Patents
Lifting gear Download PDFInfo
- Publication number
- CN108738317A CN108738317A CN201880000981.6A CN201880000981A CN108738317A CN 108738317 A CN108738317 A CN 108738317A CN 201880000981 A CN201880000981 A CN 201880000981A CN 108738317 A CN108738317 A CN 108738317A
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- China
- Prior art keywords
- wheel
- state
- lifting gear
- crawler belt
- turning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/06—Endless track vehicles with tracks without ground wheels
- B62D55/075—Tracked vehicles for ascending or descending stairs, steep slopes or vertical surfaces
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/02—Accessories or details specially adapted for hand carts providing for travelling up or down a flight of stairs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D49/00—Tractors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D57/00—Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track
- B62D57/02—Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members
- B62D57/024—Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members specially adapted for moving on inclined or vertical surfaces
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Handcart (AREA)
Abstract
The present invention provides one kind being capable of maneuverable lifting gear.Lifting gear (1) includes frame (10), crawler belt (20) and turning unit (30).Frame (10) is assembled with driving unit (11).A pair of of crawler belt (20) is arranged in the left and right side of frame (10), and is driven by driving unit (11).Unit (30) of turning has wheel (31).Wheel (31) is surrounded rotatably freely to be supported along the left and right directions extension of lifting gear (1) and the rotary shaft (A1) orthogonal with front-rear direction, and is arranged along rotary shaft (A1).In addition, wheel (31) is arranged to, and the projected state of the lower section of the lower surface of the crawler belt (20) in the state of positioned at travelling on level land and side view, which are located at when observing between the receiving state on the inside of the peripheral surface of crawler belt (20), to be moved freely.Also, lifting gear (1) utilizes turning unit (30) in turning by making wheel (31) in projected state.
Description
Technical field
The present invention relates to a kind of lifting gears.
Background technology
Patent document 1 discloses previous lifting gear.The lifting gear has crawler belt (crawler) formula of pair of right and left
Unlimited track (hereinafter referred to as crawler belt) and the car body with the driving source for driving crawler belt.In addition, in the front of lifting gear and
Rear portion is provided with the castor (caster) to the lower section pair of right and left outstanding of crawler belt.Also, level land when driving, pass through these
Front and back castor travels.
Existing technical literature
Patent document
Patent document 1：Japanese Patent Laid-Open 10-129541 bulletins
Invention content
The technical problems to be solved by the invention
In the lifting gear of patent document 1, the castor of front is universal wheel, and the castor at rear portion is fast pulley.This
In the case of, turn (conversion direction) when, by the left and right of the castor at rear portion center nearby centered on turn.That is,
Need using from the left and right of the castor at rear portion center nearby to front end length as turning radius.Therefore, on narrow ground
Side is difficult to turn.
The present invention is developed in view of above-mentioned previous actual conditions, being capable of maneuverable liter to provide one kind
Falling unit is technical problem to be solved.
Solution for solving technical problems
The lifting gear of the present invention includes frame (frame), crawler belt and turning unit (unit).Frame set is single equipped with driving
Member.A pair of of crawler belt is arranged in the left and right side of frame, and is driven by driving unit.Unit of turning has wheel.Wheel encloses
Around extending along the left and right of lifting gear and the rotary shaft orthogonal with front-rear direction is rotatably freely supported, and arranged along rotary shaft
Row configuration.Also, wheel is arranged to, the standing shape of the lower section of crawler belt lower surface in the state of positioned at travelling on level land
It is moved freely between receiving state when state and side view are observed on the inside of the peripheral surface of crawler belt.Also, lifting gear is being turned
When, by making wheel be in projected state, to utilize turning unit to turn.
The lifting gear of the present invention can have handle (handle).Handle is configured at the rear portion of lifting gear.In addition, turning
Curved unit can have operating lever (lever).Operating lever is movably arranged in the front of handle in the longitudinal direction, passes through
Operating lever is set to be moved forwards to make wheel be transformed into receiving state from projected state, and by making operating lever rearward move
To make wheel be transformed into projected state from receiving state.
In the lifting gear of the present invention, turning unit can be configured with wheel in lower end respectively, be configured in upper end
Have an operating lever, and around configuration between the wheel and operating lever, extend in left-right direction and orthogonal with front-rear direction
Rotation axis is rotatably supported by frame.In addition, lifting gear can have force application component.Force application component configuration frame with
Turn between unit, and active force assigned to turning unit, the active force towards make wheel from the position of receiving state to prominent
The direction of the position movement to do well.
The lifting gear of the present invention can have buffer component.Buffer component configures between frame and turning unit, when
When position of the wheel from the position of projected state to receiving state is moved, damping force is made to act on turning unit.
The lifting gear of the present invention can have the shelf configured in the top of frame and for placing tote.Also,
Wheel can be under projected state, in the state for being placed with tote on shelf and in the state being placed on level land
When, it is located at the rear of whole position of centre of gravity.
In the lifting gear of the present invention, wheel can be under projected state, in being placed with tote on shelf
State and when in the state that can be turned, is located at the vertical close beneath of whole center of gravity.
The lifting gear of the present invention can have the illumination for illuminating wheel.
In the lifting gear of the present invention, multiple wheels can be provided with, and are located at the vehicle at both ends in multiple wheel
Interval between wheel can be 0.25 times to 0.5 times of whole width.
Description of the drawings
Fig. 1 is the side view for the lifting gear for indicating embodiment 1.
Fig. 2 is the upward view for the lifting gear for indicating embodiment 1.
Fig. 3 is the rearview for the lifting gear for indicating embodiment 1.
The figure of state when Fig. 4 is the elevator of the lifting gear for illustrating embodiment 1.
Fig. 5 is the side view for the lifting gear for indicating embodiment 1, and is for illustrating the receiving state of wheel and dashing forward
The figure of the conversion to do well.
Fig. 6 is the side view for the lifting gear for indicating embodiment 1, and indicates that wheel is in projected state and front end
The state of ground connection.
Fig. 7 is the side view for the lifting gear for indicating embodiment 1, and indicates that wheel is in projected state and front end
Hanging state.
Specific implementation mode
About the embodiment 1 for embodying the lifting gear of the present invention, it is described with reference to the accompanying drawings.In addition, following
Explanation in, about front and back direction, the direction of travel (left in Fig. 1) when declining mobile on stair is defined as lifting
Direction of travel (right in Fig. 1) when rising mobile is defined as the rear of lifting gear by the front of device.In addition, about
Upper and lower directions shown in Fig. 1 and Fig. 3 is defined as the upper and lower directions of lifting gear by upper and lower direction as former state.
<Embodiment 1>
The lifting gear 1 of embodiment 1 is the device lifted on stair.As shown in Figure 1 to Figure 3, lifting gear 1 includes
Frame 10, crawler belt 20, turning unit 30, shelf 40, handle 50 and supporting member (force application component and buffering as the present invention
Component and example.)60.
As shown in Figure 1 to Figure 3, frame 10 includes horizontal part 10A, rake 10B, motor (motor) mounting portion 10C, carries out
Band guiding (crawler guide) portion 10D, front bearing portion 10E, rear bearing portion 10F and handle supporting part 10G.In addition,
Driving unit 11 is assembled in frame 10.
Horizontal part 10A or so is set in parallel the component extended in the longitudinal direction.Rake 10B is from horizontal part 10A
Oblique upper extends to form rearward for rear end.Motor mounting part 10C is arranged above the front end of horizontal part 10A, and installs
There is the motor 11A of following driving units 11.A pair of of crawler belt guide portion 10D is arranged in the left and right of horizontal part 10A and rake 10B
Side.Crawler belt guide portion 10D is formed with the slot for being open downwards and extending along the longitudinal direction.As shown in Figure 1, crawler belt guide portion
10D is extended to form in side view observation along the extending direction of horizontal part 10A and rake 10B.Front bearing portion 10E is from water
The front end at the left and right directions both ends of flat portion 10A is extended forwards.Front bearing portion 10E is pivotally supported following driving units
11 drive shaft 11B.Rear end prolonging along rake 10B of the rear bearing portion 10F from the left and right directions both ends of rake 10B
Direction is stretched obliquely to extend to form.Rear bearing portion 10F is pivotally supported the driven shaft 12A of following driven units 12.Handle branch
Bearing portion 10G is arranged above the upper end of rake 10B, and supports the lower end of following handles 50.
As depicted in figs. 1 and 2, driving unit 11 includes motor 11A, drive shaft 11B and driving pulley (pulley) 11C.
Motor 11A is the driving source of crawler belt 20, and not shown battery (battery) is driven.Drive shaft 11B is by before frame 10
Square shaft bearing portion 10E is pivotally supported.Drive shaft 11B is passed the power of motor 11A by sprocket wheel (sprocket) and chain (chain)
To be rotated.Driving pulley 11C is the toothed belt wheel for being wrapping with crawler belt 20.In addition, as shown in figures 1 and 3, driven unit
12 are assembled in frame 10.Driven unit 12 has driven shaft 12A and driven pulley 12B.Driven shaft 12A is by the rear of frame 10
Bearing portion 10F is pivotally supported.Crawler belt 20 is wrapping on driven pulley 12B.
A pair of of crawler belt 20 is arranged in the left and right side of frame 10 and is driven by driving unit 11.As shown in Figure 1, crawler belt 20 exists
In the ring-type of general triangular when side view is observed, it is reeved on driving pulley 11C, driven pulley 12B and crawler belt guide portion 10D
On.Crawler belt 20 is rubber (rubber) crawler belt.Crawler belt 20 is provided with multiple teeth of specified interval, these teeth and driving at its back side
The tooth engagement of belt wheel 11C simultaneously transmits the power of motor 11A to drive.In addition, on the surface of crawler belt 20 (when being lifted on stair
The face contacted with stair) on be formed with flexuosity.As shown in figure 4, crawler belt 20 draws when being lifted on stair S by crawler belt
The position for the side (downside shown in FIG. 1) that the portion 10D of leading is guided, abuts with the corner of stair S.In this state, pass through
The action of driving unit 11 is set to drive a pair of of crawler belt 20, thus crawler belt guide portion 10D is slided on the back side of crawler belt 20, to make
Lifting gear 1 lifts on stair S.With on stair S lift when as ground plane position across stair S at least two with
On corner length, be wrapping with each crawler belt 20.
Unit 30 of turning has wheel 31.In the present embodiment, there are two wheels 31 for turning unit 30 tool.Each wheel 31
Rotatably freely supported around rotary shaft A1, and be arranged along the direction extended rotary shaft A1, rotary shaft A1 along
The direction (left and right directions of Fig. 2 and Fig. 3) orthogonal with front-rear direction extends.As shown in Figures 2 and 3, between the two wheels 31
Interval D be set as lifting gear 1 left and right width W 1/3 or so.Wheel 31 is arranged in projected state and receiving state
Between move freely, the projected state is the lower section for crawler belt 20 lower end that wheel 31 is located in the state of being travelled on level land
State, the receiving state are state of the wheel 31 when side view is observed on the inside of the peripheral surface of crawler belt 20.In addition, turning is single
Member 30 has operating lever 32.Operating lever 32 is movably arranged on the front of handle 50 in the longitudinal direction.By making behaviour
Make bar 32 to move forwards, wheel 31 is transformed into receiving state from projected state, it, will by making operating lever 32 rearward move
Wheel 31 is transformed into projected state from receiving state.
In the present embodiment, turning unit 30 is rotatably supported on frame 10 around rotation axis A2 shown in fig. 5
On.Specifically, as shown in figure 5, turning unit 30 is supported on by the placement face 41 of following shelf 40 on frame 10.Turn
Moving axis A2 is the axis extended along the direction orthogonal with front-rear direction, is the axis parallel with rotary shaft Al.Unit 30 turn across this
Rotation axis A2 is configured with wheel 31 in lower end respectively, and operating lever 32 is configured in upper end.Therefore, by front-rear direction
On to operating lever 32 carry out moving operation, turning unit 30 make including wheel 31 including entirely around rotation axis A2 rotation.Turn
Curved unit 30 converts the projected state and receiving state of wheel 31 by the rotation.
In addition, as shown in figure 5, turning unit 30 has the 1st locking (lock) mechanism 33.1st locking mechanism 33 is by wheel
31 are locked in receiving state.Specifically, the 1st locking mechanism 33 has 1st fastener 33A and the 1st engaged part 33B.1st card
Stop 33A is arranged between the top and bottom of operating lever 32.1st engaged part 33B is arranged in the side of following shelf 40.
By moving operation bar 32 forwards and the 1st engaged part 33B is locked on 1st fastener 33A, makes the 1st locking mechanism 33
It is in the lock state.Operating lever 32 keeps the state for having been moved to front under the lock-out state of the 1st locking mechanism 33.Also,
Turning unit 30 is by keeping operating lever 32 to have been moved to the state in front, to lock the receiving state of wheel 31.In this implementation
In mode, as the 1st locking mechanism 33, using locking mechanism identical with the locking mechanism used in the door of vehicle etc..1st card
Stop 33A forms the notch of U-shaped, and the 1st engaged part 33B is that the cricoid of circular cross-section bears metal fittings, by by the 1st quilt
Fastener 33B is engaged from the notch for being inserted radially into 1st fastener 33A.In addition, by operating solution as shown in Figure 5
Except bar 33C, to release the locking of 1st fastener 33A and the first engaged part 33B.
In addition, as shown in figure 5, turning unit 30 has the 2nd locking mechanism 34.2nd locking mechanism 34 locks wheel 31
In projected state.2nd locking mechanism 34 has identical as the 1st fastener 33A of the 1st locking mechanism 33 and the 1st engaged part 33B
2nd fastener 34A and the 2nd engaged part 34B.2nd fastener 34A is arranged under the handle part 51 of following handles 50
Side, and the 2nd engaged part 34B is arranged in the upper end of operating lever 32.By rearward moving operation bar 32 and by the 2nd by card
Stop 34B is engaged on 2nd fastener 34A, to make the 2nd locking mechanism 34 be in the lock state.In the 2nd locking mechanism 34
Operating lever 32 keeps having been moved to the state at rear under lock-out state.Also, turning unit 30 is by keeping operating lever 32 to move
The state to rear is moved, to lock the projected state of wheel 31.By operating release lever 34C as shown in Figure 5, to release the 2nd
The locking of fastener 34A and the 2nd engaged part 34B.
The configuration of shelf 40 is in the top of frame 10 and for placing tote B.As shown in Figure 1, shelf 40 have placed side
Portion 41 and lower part receiving portion 42.Placing face 41, rearward oblique upper is extended from lower end towards upper end.Place face 41
Lower end by the horizontal part 10A bearing of frame 10, and upper end is supported by the rake 10B of frame 10, is set as in side
With the angle tilt substantially parallel with rake 10B when depending on observing.Lower part receiving portion 42 from place face 41 lower end forwards
Oblique upper is extended.Shelf 40 are formed as when side view is observed by these placement faces 41 and lower part receiving portion 42 in substantially
L-shaped.When tote B is placed on placement face 41, lower part receiving portion 42 carries the lower part of tote B.In addition, at this
In the lifting gear 1 of embodiment 1, carries polyethylene tank (polyethylene tank) and be used as tote B.As shown in Figure 1,
It is placing between face 41 and lower part receiving portion 42, is being mounted with to be capable of the two of two 20 liters of (liter) polyethylene tanks of every section of placement
Section shelf 43, also, four polyethylene tanks can be at most placed on shelf 40.
Handle 50 is arranged at the rear portion of lifting gear 1.In the present embodiment, handle 50 rearward extends shape from shelf
At.Specifically, as shown in Figure 1, the lower end of handle 50 be rotatably connected to shelf 40 placement face 41 upper end,
Rearward oblique upper extends to form handle 50.It is provided in the upper end of handle 50 and substantially horizontally extends in the lateral direction of left and right
Two handle parts 51.Two handle parts 51 are the portions for being used for being changed the manipulations such as direction of travel and turning by operator's holding
Position.The left and right medial end of handle part 51 is provided with the Operation switch 51A for being operated to the driving of driving unit 11.
Operation switch 51A is separately positioned on two handle parts 51.In addition, angle adjusting part 52 is provided on handle 50, the angle
Adjustment section 52 is from lower end branch and is connected on the handle supporting part 10G of frame 10.Angle adjusting part 52 by adjusting and handle
Connection length between hand supporting part 10G can be such that the entirety of handle 50 is rotated centered on the lower end of handle 50, from
And adjust the angle of handle 50.
Operation switch (switch) 51A is switched using so-called instantaneous (momentary) manipulation type button (button),
Original state is automatically restored to when releasing pressing state.Operation switch 51A is electrically connected to control unit (not shown).In control unit
In, the motor 11A actions of driving unit 11 are made by two Operation switch 51A of pressing operation simultaneously, also, even if this
Release the pressing state of any one Operation switch 51A under state, motor 11A also continue working states pass through and release two behaviour
Make the pressing state of switch 51A, executes the control for making motor 11A stop.
Supporting member 60 elastically configures between frame 10 and turning unit 30.In the present embodiment, it supports
Component 60 is oleo-gear (damper), applies active force using the air pressure of compressed gas (gas) in elongation and extends, receives
Apply the damping force by the fluid resistance generation of working oil and contraction when contracting.One end of supporting member 60 is fastened on shelf 40
On.That is, one end of supporting member 60 is mounted on by shelf 40 on frame 10.In addition, the other end connection of supporting member 60 is solid
It is scheduled in the operating lever 32 of turning unit 30.Also, supporting member 60 assigns active force, the active force direction to turning unit 30
Make the direction of position movement of the wheel 31 from the position of receiving state to projected state.Specifically, the configuration of supporting member 60 exists
It is fixedly attached between the shelf 40 of frame 10 and the operating lever 32 for unit 30 of turning, assigning direction makes operating lever 32 rearward move
The active force in dynamic direction.By the active force, turning unit 30 is endowed the active force around rotation axis A2 rotations.Also,
The active force is, towards the active force in the direction for making position movement of the wheel 31 from the position of receiving state to projected state.
In addition, when position of the wheel 31 from the position of projected state to receiving state is moved, supporting member 60 applies damping force.Specifically
For, when operating lever 32 moves forwards, supporting member 60 shrinks and applies damping force.
In addition, lifting gear 1 has illumination 71,72.As shown in Fig. 2, illumination 71 is arranged at the rear portion of frame 10.It is specific and
Speech, illumination 71 are arranged in the upper end of the rake 10B of left and right, forwards obliquely downward irradiation light, to illuminate wheel 31.Utilize this
Illumination 71, operator can identify whether wheel 31 is definitely transformed into projected state or receiving state.In addition, due to illumination 71
From the upper end of rake 10B rear ramp irradiation light forwards, therefore can illuminate in front of the underfooting of operator.Illumination 71 is configured
To have the multiple LED light sources being arranged in the lateral direction.Illumination 72 is arranged in the side of frame 10.Specifically, such as
Shown in Fig. 1, illumination 72 is separately mounted on the fixed plate 10H of pair of right and left, and the fixed plate 10H of pair of right and left is arranged in horizontal part
The side of 10A is simultaneously used for fixed goods shelf 40.The peripheral portion of lifting gear 1 is illuminated in illumination 72 towards side obliquely downward irradiation light
Left and right.Illumination 72 is configured to, and has the multiple LED light sources being arranged in the longitudinal direction.
In the following, to having the function of that the lifting gear 1 of above structure illustrates.
When lifting gear 1 lifts on stair, travelled by a pair of of crawler belt 20.When being lifted on stair, will initially turn
The wheel 31 of curved unit 30 is transformed into receiving state from projected state.Specifically, as shown in figure 5, first, operating release lever
34C releases the locking of the 2nd locking mechanism 34.At this point, although the gravity performance being applied on lifting gear 1 makes 31 direction of wheel
The effect of the power of the position movement of receiving state, but the active force of supporting member 60 and damping force play a role, to make wheel
The 31 drastically movement to the direction of receiving state is mitigated, and in other words, the drastically decline of lifting gear 1 is mitigated.So
Afterwards, operating lever 32 is made to move forwards.At this point, making operating lever 32 certainly move forwards, until 1st fastener 33A is engaged
Until on the 1st engaged part 33B.By engaging 1st fastener 33A and the 1st engaged part 33B, the 1st locking mechanism 33 is locked
Fixed, the receiving state of wheel 31 is reliably locked.
Next, driving unit 11 is made to act.Specifically, carrying out pressing operation to two Operation switch 51A.Driving is single
Member 11 just starts to drive when both two Operation switch 51A are in pressing state simultaneously, therefore, even if only there are one operations to open
Closing 51A unintentionally becomes pressing state, is also possible to prevent unexpectedly to drive driving unit 11.So act driving unit 11
When, crawler belt 20 rotates.Also, when a pair of of crawler belt 20 abuts to the corner of stair S, as shown in figure 4, along the corner of stair S
It advances, to be lifted on stair S.At this point, even if releasing the pressing operation of any one in two Operation switch 51A, still
Keep the driving of driving unit 11.Therefore, it is easy to carry out the operation in elevator.Stop the rotation of crawler belt 20 after the completion of lifting
When turning, while releasing the pressing operation of two Operation switch 51A.Driving unit 11 stops as a result,.
In addition, when (conversion direction) is turned in the narrow place such as landing, lifting gear 1 passes through unit of turning
30 wheel 31 is turned.That is, turning when, lifting gear 1 by making wheel 31 be in projected state and being grounded,
To turn.When wheel 31 is transformed into projected state from receiving state, first, operation release lever 33C locks to release the 1st
Determine the locking of mechanism 33.Then, making operating lever 32, (50 side of handle) is mobile (with reference to Fig. 5) rearward.At this point, making operating lever 32
It certainly rearward moves, until the 2nd engaged part 34B is locked until 2nd fastener 34A.By engaging 2nd fastener
34A and the 2nd engaged part 34B, the 2nd locking mechanism 34 is locked, and the projected state of wheel 31 is reliably locked.Separately
Outside, at this point, the supporting member 60 as force application component extends, to apply towards the position for making wheel 31 be moved to projected state
Direction active force, therefore be easy to be converted.
In addition, as shown in fig. 6, in the state of being placed with the state of tote on shelf 40 and being placed on level land, locate
It is located at the rear of the position of the whole center of gravity G of lifting gear 1 in the wheel 31 of projected state.In other words, in this state
Lifting gear 1 center of gravity G between wheel 31 and the front end of lifting gear 1.The center of gravity G of lifting gear 1 is located at and connects as a result,
Between the wheel 31 and the front end of crawler belt 20 on ground, lifting gear 1 can be static with stable state.
It is that axis lifts the front of lifting gear 1 with wheel 31 next, the handle part 51 of handle 50 is caught to push downwards
It rises.As a result, as shown in fig. 7, front end is hanging, become the state turned that the wheel 31 of only projected state is grounded.Pass through
Handle 50 is moved left and right in this state, and lifting gear 1 can be turned centered on the centre position of two wheels 31.This
When, by the way that the interval D of two wheels 31 is set as the 1/3 of whole width W, inclining for left and right directions can be inhibited well
Tiltedly, and crawler belt 20 will not be grounded and can turn well.
In addition, when lifting the front of lifting gear 1, the position of center of gravity G is dynamic for shaft rotation with wheel 31.As a result, in this reality
The center of gravity G for applying the lifting gear 1 of mode is moved to the top of wheel 31.That is, wheel 31 is located at the vertical close beneath of center of gravity G.
The larger power that therefore, there is no need to apply the state for maintaining to keep the front of lifting gear 1 hanging, before and after being also easy to control
It tilts.
As described above, lifting gear 1 includes frame 10, crawler belt 20 and turning unit 30.Frame 10 is assembled with driving unit
11.Crawler belt 20 is provided with a pair in the left and right sides of frame 10, and is driven by driving unit 11.Unit 30 of turning has wheel
31.Wheel 31 is surrounded rotatably freely to be propped up along the left and right extension of lifting gear 1 and the rotary shaft A1 orthogonal with front-rear direction
It holds, and is arranged along rotary shaft A1.In addition, wheel 31 is arranged to, shoe in the state of positioned at travelling on level land
Between receiving state when the projected state of lower section with 20 lower surface and side view are observed on the inside of the peripheral surface of crawler belt 20
It moves freely.Also, lifting gear 1 utilizes turning unit 30 to carry out in turning by making wheel 31 in projected state
Turning.
Through this structure, lifting gear 1 can keep crawler belt 20 hanging to be in the wheel 31 of projected state for axis.Cause
This can be easy to carry out turning by the center of wheel 31 in the state of being only grounded wheel 31 centered on nearby.
Therefore, it is possible to easily operate lifting gear 1.
In addition, lifting gear 1 has handle 50 at rear portion.In addition, turning unit 30 has operating lever 32.Operating lever 32 exists
Front and back, which move up, to be arranged freely in the front of handle 50, and by moving forwards by wheel 31 from projected state
It is transformed into receiving state, and wheel 31 is transformed into projected state from receiving state by rearward moving.Therefore, it is located at
The operator at 50 rear of handle is by that into the operation for being about to operating lever 32 and pulling to rear, can make wheel 31 be in projected state.
In addition, by pushing operating lever 32 forwards, wheel 31 can be made to be in receiving state.Thereby, it is possible to be easy to carry out protrusion
Conversion operation between state and receiving state.
In addition, in lifting gear 1, turning unit 30 is configured with wheel 31 in lower end respectively, in upper end configured with behaviour
Make bar 32, also, rotatably supported by frame 10 around rotation axis A2, rotation axis A2 configurations are in these wheels 31 and behaviour
Between making bar 32, and along left and right directions extend and it is orthogonal with front-rear direction.In addition, lifting gear 1 has as force application component
Supporting member 60.The configuration of supporting member 60 acts between frame 10 and turning unit 30, and to turning 30 imparting of unit
Power, active force direction make the direction of position movement of the wheel 31 from the position of receiving state to projected state.Therefore, when making vehicle
When wheel 31 is in projected state, the active force of supporting member auxiliarily acts on operating lever 32.The active force and lifting gear 1 are whole
The inclination (front-rear direction) of body independently plays a role.Thereby, it is possible to so that wheel 31 is in projected state with smaller power.
In addition, lifting gear 1 has the supporting member 60 as buffer component.The configuration of supporting member 60 is in frame 10 and turns
Between curved unit 30, damping force is set to act on turning when position of the wheel 31 from the position of projected state to receiving state is moved
Unit 30.Wheel 31 is set as to impact when receiving state therefore, it is possible to mitigate.The case where wheel 31 is grounded with projected state
Under, the whole weight of lifting gear 1 is applied to wheel 31.That is, the decline of lifting gear 1 is supported by wheel 31.When from the state
When becoming receiving state, the gravity for acting on lifting gear 1 plays a role, and exerts a force towards the position of receiving state to wheel 31.
But it is possible to the force be resisted by the damping force of supporting member 60, so as to alleviate impact.
In addition, lifting gear 1 has shelf 40 of the configuration above frame 10 and for placing tote B.Also, prominent
It does well down, when in the state for being placed with tote B on shelf 40 and in the state being placed on level land, wheel 31
Rear in the position of the whole center of gravity G of lifting gear 1.Therefore, because center of gravity G is located at the wheel 31 and crawler belt of the state of ground connection
Between 20 front, so the state being placed on level land can be maintained steadily.In addition, by the way that handle 50 is pressed downwards
Pressure can be that axis easily lifts the front of lifting gear 1, therefore can easily switch to the shape that can be turned with wheel 31
State.
In addition, lifting gear 1 under projected state, in the state for being placed with tote B on shelf 40 and is in energy
When the state enough turned, wheel 31 is located at the vertical close beneath of the whole center of gravity G of lifting gear 1.Therefore, with the position of center of gravity G
Setting in wheel 31 a distant place the case where compare, the moment of inertia (moment) when turning becomes smaller, therefore can be easier to turn.
In addition, since the whole center of gravity G of lifting gear 1 is located above the vertical of wheel 31, so be easy to obtain balance (balance),
The state that can be easy to maintain the wheel 31 only in the state that can be turned to be grounded.
In addition, lifting gear 1 has the illumination 71 for illuminating wheel 31.Therefore, though night or dark place into
Row operation can also be easy some shape whether visual confirmation wheel 31 is certainly in projected state and receiving state
State.
In addition, the setting of lifting gear 1 is there are two wheel 31, and the interval D between the two wheels 31 be set to it is whole
About the 1/3 of the width W of body.Therefore, it is possible to inhibit the inclination of the left and right directions in the state of can turning well, can stablize
Ground makes its turning.In addition, the turning radius of distance until the turning center of each wheel 31, i.e. each wheel 31 is controlled small
In the turning radius that lifting gear 1 is whole, therefore turn performance can be improved.Thereby, it is possible to realize to have both turn performance and turn
The lifting gear 1 of curved stability.
The present invention is not limited to pass through embodiment 1 described in above description and attached drawing, such as following embodiment
Including within the scope of the present invention.
(1) in the embodiment 1, illustrate by make wheel around defined rotation axis rotate convert projected state and
The form of receiving state, but this is not necessarily.The form that wheel is converted between projected state and receiving state is without spy
It does not limit, for example, it is also possible to using by making wheel be moved linearly in the up-down direction come the form etc. converted.
(2) in the embodiment 1, illustrating turning unit has the operation of projected state and receiving state of conversion wheel
The form of bar, but this is not necessarily.There is no particular limitation for the structure of projected state and receiving state for converting wheel.
(3) in the embodiment 1, the form for having the supporting member as force application component is illustrated, the force application component pair
Turning unit assigns the active force towards the direction for the position movement for making wheel from the position of receiving state to projected state, but this
Not necessarily.With force application component, the type of force application component and the imparting form of active force etc. being generated by it
It is not particularly limited.
(4) in the embodiment 1, the form for having the supporting member as buffer component is illustrated, which exists
Position of the wheel from the position of projected state to receiving state applies damping force when moving, but this is not necessarily.Having buffering
In the case of component, the type of buffer component and the form etc. by its application damping force are not particularly limited.
(5) in the embodiment 1, it illustrates and is placed with the state of tote on shelf and is placed in the state on level land
Under wheel, the form at the rear of whole position of centre of gravity is located under projected state, but this is not necessarily.
(6) in the embodiment 1, vehicle in the state of being placed with the state of tote on shelf and can turn is illustrated
Wheel is located at the form of the vertical close beneath of whole position of centre of gravity under projected state, but this is not necessarily.
(7) in the embodiment 1, the form for having the illumination for illuminating wheel is illustrated, but this is not necessarily.
(8) in the embodiment 1, it illustrates and is provided with multiple (two) wheels, and both ends will be located in multiple wheels
Wheel interval be set as lifting gear entirety width 1/3 or so form, but this is not necessarily.The interval can be
0.25 times to 0.5 times of the width of device entirety, preferably 0.3 times to 0.35 times.In these cases, can inhibit well
The inclination of the left and right directions of lifting gear when being turned by wheel.
(9) in the embodiment 1, by the quantity set of wheel be two but it is also possible to be one or three or more.
(10) in the embodiment 1, rubber belt track is illustrated as crawler belt, but metal crawler belt etc. can also be used to make
The crawler belt that crawler belt with other materials or the combination by these materials are formed.
(11) in the embodiment 1, stair are crossed over extremely as the position of ground plane when illustrating to be lifted on stair
Crawler belt is wound around the form in crawler belt guide portion by the length in few 2 or more corners, but from the viewpoint of stability when lifting
From the point of view of, preferably cross over the length in three or more corners of stair.
Reference sign
1 ... lifting gear 10 ... frame
10A ... horizontal part 10B ... rakes
10C ... motor mounting part 10D ... crawler belt guide portions
The fronts 10E ... the rears bearing portion 10F ... bearing portion
10G ... handle supporting part 10H ... fixed plates
11 ... driving unit 11A ... motors
11B ... drive shaft 11C ... driving pulleys
12 ... driven unit 12A ... driven shafts
12B ... driven pulleys 20 ... crawler belt
30 ... the turning multiple wheels of unit 31 ...
The 1st locking mechanism of 32 ... operating lever 33 ...
The 1st engaged parts 33A ... 1st fasteners 33B ...
The 2nd locking mechanism of 33C ... release levers 34 ...
The 2nd engaged parts 34A ... 2nd fasteners 34B ...
34C ... release levers 40 ... shelf
Lower part receiving portion that 41 ... place face 42 ...
43 ... two sections of shelf 50 ... handles
51 ... handle part 51A ... Operation switches
52 ... angle adjusting part 60 ... supporting members (force application component, buffer component)
71, the rotary shaft of 72 ... the illumination multiple wheels of A1 ...
Rotation axis B ... the totes of A2 ... turning units
Interval in the multiple wheels of D ... between the wheel at both ends
Center of gravity S ... the stair of G ... lifting gear entirety
The width of the left and right of W ... lifting gear entirety
Claims (8)
1. a kind of lifting gear, which is characterized in that have：
Frame is assembled with driving unit；
A pair of of crawler belt is arranged in the left and right side of the frame, and driven by the driving unit；And
Turning unit, with wheel, the wheel extends around edge left and right and the rotary shaft orthogonal with front-rear direction rotates certainly
It such as is supported, and is arranged along the rotary shaft, and be arranged to, in the state of positioned at travelling on level land
Storage shape when the projected state of the lower section of the lower surface of the crawler belt and side view are observed on the inside of the peripheral surface of the crawler belt
It is moved freely between state,
In turning, by making the wheel be in the projected state and being grounded, to turn.
2. lifting gear as described in claim 1, which is characterized in that
Handle with configuration at rear portion,
There is the turning unit operating lever, the operating lever to be movably arranged before the handle in the longitudinal direction
The wheel is transformed into the receiving state by side by making the operating lever move forwards from the projected state, and
And the wheel is transformed into the projected state from the receiving state by making the operating lever rearward move.
3. lifting gear as claimed in claim 2, which is characterized in that
The turning unit is configured with the wheel in lower end respectively, is configured with the operating lever in upper end, and surround
Configuration between the wheel and the operating lever, extend in left-right direction and the rotation of orthogonal with front-rear direction rotation axis from
Such as supported by the frame,
Has force application component, which configures between the frame and the turning unit, and single to the turning
Member assigns active force, and active force direction makes the wheel be moved from the position of the receiving state to the position of the projected state
Dynamic direction.
4. lifting gear as claimed in claim 3, which is characterized in that
Has buffer component, which configures between the frame and the turning unit, when the wheel is from described
The position of projected state applies damping force when being moved to the position of the receiving state.
5. lifting gear according to any one of claims 1 to 4, which is characterized in that
Shelf with configuring in the top of the frame and for placing tote,
The wheel is under the projected state, in the state for being placed with tote on the shelf and in being placed in
When state on level land, it is located at the rear of whole position of centre of gravity.
6. lifting gear as claimed in claim 5, which is characterized in that
The wheel in the state for being placed with tote on the shelf and is in and can turn under the projected state
State when, be located at the vertical close beneath of whole center of gravity.
7. lifting gear as described in claim 1, which is characterized in that
Has the illumination for illuminating the wheel.
8. lifting gear as described in claim 1, which is characterized in that
Multiple wheels are provided with, and the interval in multiple wheels between the wheel at both ends is whole width
0.25 times to 0.5 times.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017028792A JP6935901B2 (en) | 2017-02-20 | 2017-02-20 | lift device |
| JP2017-028792 | 2017-02-20 | ||
| PCT/JP2018/001537 WO2018150808A1 (en) | 2017-02-20 | 2018-01-19 | Lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108738317A true CN108738317A (en) | 2018-11-02 |
Family
ID=63170664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880000981.6A Withdrawn CN108738317A (en) | 2017-02-20 | 2018-01-19 | Lifting gear |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP6935901B2 (en) |
| KR (1) | KR20180105160A (en) |
| CN (1) | CN108738317A (en) |
| TW (1) | TW201832966A (en) |
| WO (1) | WO2018150808A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7033357B1 (en) * | 2021-08-31 | 2022-03-10 | 宣之 嘉来 | Transport equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3146841A (en) * | 1963-02-25 | 1964-09-01 | Burton H Locke | Stair-climbing wheel chairs |
| JPH10258781A (en) * | 1997-01-17 | 1998-09-29 | Matsushita Electric Works Ltd | Carriage ascending and descending stairs |
| JP3122932U (en) * | 2006-04-17 | 2006-06-29 | 越後工業株式会社 | wheelchair |
-
2017
- 2017-02-20 JP JP2017028792A patent/JP6935901B2/en active Active
-
2018
- 2018-01-19 CN CN201880000981.6A patent/CN108738317A/en not_active Withdrawn
- 2018-01-19 KR KR1020187022688A patent/KR20180105160A/en active Search and Examination
- 2018-01-19 WO PCT/JP2018/001537 patent/WO2018150808A1/en active Application Filing
- 2018-02-06 TW TW107104192A patent/TW201832966A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018150808A1 (en) | 2018-08-23 |
| KR20180105160A (en) | 2018-09-27 |
| JP2018134893A (en) | 2018-08-30 |
| JP6935901B2 (en) | 2021-09-15 |
| TW201832966A (en) | 2018-09-16 |
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|---|---|---|---|
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181102 |
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| WW01 | Invention patent application withdrawn after publication |