WO2022094650A1 - Trolley control mechanism for a dynamic steer trolley - Google Patents
Trolley control mechanism for a dynamic steer trolley Download PDFInfo
- Publication number
- WO2022094650A1 WO2022094650A1 PCT/AU2021/051283 AU2021051283W WO2022094650A1 WO 2022094650 A1 WO2022094650 A1 WO 2022094650A1 AU 2021051283 W AU2021051283 W AU 2021051283W WO 2022094650 A1 WO2022094650 A1 WO 2022094650A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- trolley
- locking
- wheels
- locked
- assembly according
- Prior art date
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 claims description 13
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 230000000284 resting effect Effects 0.000 claims description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B62B5/04—Braking mechanisms; Locking devices against movement
- B62B5/0438—Braking mechanisms; Locking devices against movement hand operated
- B62B5/0447—Braking mechanisms; Locking devices against movement hand operated using elements cooperating with a handle bar
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/02—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism
- B60B33/026—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism being actuated remotely, e.g. by cable or electrically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/001—Steering devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/14—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor characterised by provisions for nesting or stacking, e.g. shopping trolleys
- B62B3/1492—Wheel arrangements
-
- 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
- B62B5/06—Hand moving equipment, e.g. handle bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2200/00—Type of product being used or applied
- B60B2200/40—Articles of daily use
- B60B2200/43—Carts
- B60B2200/432—Shopping carts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2301/00—Wheel arrangements; Steering; Stability; Wheel suspension
- B62B2301/04—Wheel arrangements; Steering; Stability; Wheel suspension comprising a wheel pivotable about a substantially vertical axis, e.g. swivelling castors
- B62B2301/046—Wheel arrangements; Steering; Stability; Wheel suspension comprising a wheel pivotable about a substantially vertical axis, e.g. swivelling castors with means restricting the rotation about that axis
- B62B2301/0463—Wheel arrangements; Steering; Stability; Wheel suspension comprising a wheel pivotable about a substantially vertical axis, e.g. swivelling castors with means restricting the rotation about that axis by blocking the rotation at a position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2301/00—Wheel arrangements; Steering; Stability; Wheel suspension
- B62B2301/04—Wheel arrangements; Steering; Stability; Wheel suspension comprising a wheel pivotable about a substantially vertical axis, e.g. swivelling castors
- B62B2301/046—Wheel arrangements; Steering; Stability; Wheel suspension comprising a wheel pivotable about a substantially vertical axis, e.g. swivelling castors with means restricting the rotation about that axis
- B62B2301/0463—Wheel arrangements; Steering; Stability; Wheel suspension comprising a wheel pivotable about a substantially vertical axis, e.g. swivelling castors with means restricting the rotation about that axis by blocking the rotation at a position
- B62B2301/04632—Wheel arrangements; Steering; Stability; Wheel suspension comprising a wheel pivotable about a substantially vertical axis, e.g. swivelling castors with means restricting the rotation about that axis by blocking the rotation at a position at two or more positions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2301/00—Wheel arrangements; Steering; Stability; Wheel suspension
- B62B2301/04—Wheel arrangements; Steering; Stability; Wheel suspension comprising a wheel pivotable about a substantially vertical axis, e.g. swivelling castors
- B62B2301/046—Wheel arrangements; Steering; Stability; Wheel suspension comprising a wheel pivotable about a substantially vertical axis, e.g. swivelling castors with means restricting the rotation about that axis
- B62B2301/0465—Wheel arrangements; Steering; Stability; Wheel suspension comprising a wheel pivotable about a substantially vertical axis, e.g. swivelling castors with means restricting the rotation about that axis by urging the wheel into a position, e.g. into a straight forward position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/14—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor characterised by provisions for nesting or stacking, e.g. shopping trolleys
Definitions
- the present invention relates to manoeuvrability and control-ability of trolleys of all kinds, and mechanisms thereof.
- SUBSTITUTE SHEET (RULE 26) front of the trolley, using the length of the trolley as leverage, to resist inertia and gravity around corners and on uneven ground. Full manoeuvrability is desired in a stationary position, as the user can easily and quickly move the trolley aside if there are other obstacles to manoeuvre around.
- Trolleys related to environments may incorporate various combinations of locking wheels, utilising the unique design features set forth herein.
- a primaij object of the present disclosure is to provide a trolley control mechanism for a trolley.
- Another object of the present disclosure is to provide a trolley control mechanism for a trolley, which provides desired controllability and manoeuvrability of a trolley.
- Yet another object of the present disclosure is to provide a trolley control mechanism for a trolley, which allows lockability of wheels as well as all-wheel pivotability.
- Still another object of the present disclosure is to provide a trolley control mechanism for a trolley, which can be easily retrofitted to an existing trolley.
- Yet another object of the present disclosure is to provide a trolley control mechanism for a dynamic steer trolley, which is compact.
- Still another object of the present disclosure is to provide a trolley control mechanism for a trolley, which is robust.
- Yet another advantage allows two wheels to be locked simultaneously with only one locking mechanism, best suited, yet not limited to; the shopping trolley environment.
- the design features herein may incorporate multiple variations of similar parts to lock multiple wheels, involving more than one locking mechanism, potentially suited for other environments other than the shopping industry.
- the present invention provides a trolley assembly comprising:
- the upper components comprise a cable system, a hand lever, a mount either end of the hand lever.
- the lower components comprise a locking shaft, a lower mount at either end of the locking shaft and caster wheel locking disc frame assemblies.
- the locking shaft comprises two locking tabs, a cable lever and cable pin wherein the locking shaft enables, but not limited to, both front wheels to be locked straight simultaneously forwards or backwards.
- the locking disc frame assemblies comprise a locking disc, a hook and two reinforced ridged uprights.
- the locking disc is a circular disc with preferably two slots formed thereon, 180° apart and a locking tab of the locking shaft which engages in either of these slots of the disc.
- the upper component assembly further includes a resilient member.
- the locking tabs include a bearing housing integrated therewithin, and bearings configured to minimise friction between the locking discs and the locking tabs, to alleviate crab walking while the locking tabs are yet to be engaged and before the wheels are straight.
- the user maintains full manoeuvrability in its unlocked state by allowing free pivoting of all four caster wheels of the trolley and allowing the user to know when the wheels are locked or are ready to be locked.
- the wheels are unlocked in a resting position and engaged for locked wheel control.
- the trolley is adapted to be attached to either hand lever mount to allow the user to optionally choose to lock the hand lever in a locked wheel position.
- the present invention provides a method of controlling and locking a trolley using the trolley assembly according to the present invention as hereinbefore described.
- SUBSTITUTE SHEET (RULE 26)
- the user maintains full manoeuvrability in its unlocked state by allowing free pivoting of all four caster wheels of the trolley and allowing the user to know when the wheels are locked or are ready to be locked.
- the trolleys are used in shopping, hospital beds, ambulance stretchers, airports and the like.
- the wheels are unlocked in a resting position and optionally engaged for locked wheel control.
- the trolley is adapted to be attached to either or both hand lever mounts to allow the user to optionally choose to lock and maintain the hand lever in a locked wheel position.
- Figure 1 illustrates a schematic view of a trolley control mechanism for a trolley according to the present disclosure
- Figure 2 shows an isometric view of an upper component assembly of the trolley control mechanism of Figure 1 ;
- Figure 3 illustrates an exploded view of the upper component assembly of Figure 2;
- Figure 4 shows another view of a key-key-way pair along with a hand lever, an upper primary mount and an upper cable mount;
- Figure 5 illustrates an operative and an inoperative state in a side view of the upper component assembly of Figure 2;
- Figure 6 shows an isometric view of a lower component assembly of the trolley control mechanism of Figure 1 with caster wheels of the trolley;
- Figure 7 illustrates an exploded view of the lower component assembly of Figure 6 without the caster wheels
- Figure 8a illustrates a side view of a caster wheel locking disc frame assembly mounted on a caster wheel
- Figure 8b illustrates an isometric view of the caster wheel locking disc frame assembly
- Figure 8c illustrates profile of ridges of a caster wheel frame upright
- Figure 9 illustrates a side view of the lower component assembly with a cable system in an operative configuration
- Figure 10a illustrates a top view of a locking disc with a magnified view of a slot therein;
- Figure 10b illustrates a sectional view of a three-dimensional shape in the locking disc
- Figure 10c illustrates a front view of the locking disc
- Figure lOd illustrates an isometric view of the locking disc with a magnified view of a square wall in the slot therein.
- Embodiments are provided so as to thoroughly and fully convey the scope of the present disclosure to the person skilled in the art. Numerous details are set forth, relating to specific components, and methods, to provide a complete understanding of embodiments of the present disclosure. It will be apparent to the person skilled in the art that the details provided in the embodiments should not be construed to limit the scope of the present disclosure. In some embodiments, well-known processes, well-known apparatus structures, and well-known techniques are not described in detail.
- a mechanism for controlling a dynamic steer trolley is sought, which allows the trolley to be easily and safely manoeuvred in a variety of situations such as in tight spaces, in case of heavy loads, in case where other users need to get past, and so on.
- FIG. 1 illustrates a schematic view of a trolley control mechanism 1000 according to the present disclosure.
- the mechanism 1000 can comprise of an upper component assembly 100 and a lower component assembly 200, connected through a cable system 27.
- the cable system 27 can be covered with a cable guard 28.
- the upper component assembly 100 can be attached to the trolley handle frame 310.
- the lower component assembly 200 can be disposed of in the vicinity of the caster wheels 320.
- Figure 2 shows an isometric view of an upper component assembly of the trolley control mechanism of Figure 1.
- the component assembly can comprise a hand lever
- the hand lever 1 can be pivotably mounted between the upper primary mount 6 and the upper secondary mount 9, wherein the mounts 6 and 9 can be attached on the trolley handle frame 310.
- Figure 3 illustrates an exploded view of the upper component assembly of Figure
- a key-key-way pair 4-5a can be provided between the hand lever 1 and the upper primary mount 6.
- Figure 4 shows another view of the key-
- SUBSTITUTE SHEET (RULE 26) key- way pair 4, 5a along with the hand lever 1, the upper primary mount 6 and an upper cable mount 7.
- the key 4 can be provided, by machining or welding or any other method, at the end of the hand lever 1 with the mating key-way 5a provided in a bush 5 wherein the bush 5 can be fixed in the upper primary mount 6.
- key-way 5a can be provided on the upper primary mount side with the key 4 provided on the hand lever side.
- An upper cable mount 7 can be configured to be attached with the upper primary mount 6.
- the upper cable mount 7 can receive a portion of the cable system 27.
- One end of the cable of the cable system 27 can be coupled with an upper cable pin 2 which can be provided, by welding or any other similar other method, at one end of the elongated handling portion of the hand lever 1.
- the other end of the hand lever 1 can be inserted into a secondary bush 8 which can be fixed in the upper secondary mount 9.
- the upper component assembly further includes a resilient member 30 which is integrated into the secondary bush 8, which holds positive pressure against the hand lever, to ensure that the lever is held against the key way mechanism.
- the resilient member 30 is a spring component.
- FIG 6 shows an isometric view of the lower component assembly 200 of the trolley control mechanism 1000 of Figure 1 with caster wheels 320 of the trolley.
- the lower component assembly 200 can comprise of a locking shaft 10, a lower primary mount 14, a lower secondary mount 17 and a caster wheel locking disc frame assembly.
- FIG 7 illustrates an exploded view of the lower component assembly of Figure 6 without the caster wheels.
- the locking shaft 10 can be provided with two locking tabs 1 1 (one for each front caster wheel 320), a cable lever 12 and a lower cable pin 13 as shown in Figure 7.
- the locking shaft 10 can be pivotably suspended between a lower primary bush 15 and a lower secondary bush 18.
- the locking tabs 11 include a bearing housing integrated therewithin, and bearings 40.
- the bearings 40 are configured to minimise friction between the locking disks 19 and locking tabs 11, to alleviate crab walking while the locking tabs 11 are yet to be engaged and before the wheels are straight.
- the locking disc frame assembly can be configured with the caster wheel 320 as illustrated in Figure 8a.
- Figure 8b illustrates an isometric view of the caster wheel locking disc frame assembly.
- Figure 9 illustrates a side view of the lower component assembly with the cable system in an operative configuration.
- the two locking disc frame assemblies can comprise a locking disc 19, a hook 21 and two reinforced ridged uprights 20.
- Figure 8c illustrates the profile of the reinforced ridges of the caster wheel frame upright.
- the hook 21 can hook the locking disc 19 onto the front of the caster wheel frame 322 and can pivot around the caster wheel 320 to allow the ridged uprights 20 to be bolted, welded or integrated into the caster wheel frame 322. which may be through integrated holes in the uprights 20, that utilise the axle bolt to fix the locking disc frame 322 to the caster wheel 320.
- FIGS 10a, 10b, 10c and lOd illustrate details of the locking disc 19 of the present disclosure.
- the locking disc 19 can be a circular disc with a preferable two slots 22 formed thereon, 180° apart.
- the locking tab 11 of the locking shaft 10 can engage in either of these slots 22 of the disc 19.
- the locking disc 19 can incorporate a three- dimensional shape 25 in the area of the disc that allows the locking tabs 11 to slide towards the slot 22 formed on the disc 19.
- the angled shape 25 allows the locking tab 11 to slide along a low-friction surface 26, which increases the user’s capabilities to engage the front wheels towards a locked straight position. This shape 25 creates a mechanical means to reduce the load on the user’s hands, even when a lot of weight is placed in the trolley.
- the shape 25 gives a feeling akin to a hydraulic mechanism while engaging the front wheels towards being locked straight forwards or backwards.
- the angled shape 25 of the entry section of the locking disc 19 slopes down towards the locking disc slot 22, which incorporates a small section 24 that is square with the straight caster wheel position. This small square wall section 24 allows the user to keep the wheels locked easily without an effort.
- the overall design of the locking disc 19 also allows the locking tabs 11 to disengage easily from the locking slot 22.
- the design allows the positive weight of the hand lever 1 and the non-flexible cable of the cable system 27 to automatically disengage the locking shaft 10, when the hand lever 1 is not being pulled, additionally a known spring configuration may be integrated into the locking shaft 10 to assist with disengagement, depending on the load bearing requirements of the trolley.
- the locking disc 19 and the locking tabs 11 can integrate the low-friction surface 25, 26 between the surfaces that contact between one another, including the perimeter of the locking disc where the locking tabs 11 can freely slide along if attempting to engage the locking mechanism, when the locking slot 22 is not 11
- SUBSTITUTE SHEET (RULE 26) aligned. This increases the assisted feel of locating the locking slots 22, and allows the locking tabs 11 to slide along the outside perimeter of the locking disc 19 when the locking tabs 11 have not engaged, thus reducing the chances of the trolley “crab walking” sideways if the hand lever 1 is pulled when the locking tabs 11 are not engaged with the entry point of the locking slots 22. This allows the trailing axle caster wheel to still rotate even when pressure is applied to the outside perimeter 26 of the locking disc 19 by the locking tabs 11 by the user.
- the cable system 27 can have a low-friction design, creating the connection between the hand lever 1 and the lower locking mechanism.
- the connection between the cable pins 2 and 13 of the cable system 27 needs a low friction configuration, while maintaining a tight tolerance enough to be able to push or pull the hand lever effortlessly.
- the upper and lower cable mounts 7 and 17 are designed to create as little friction as possible, relative to the rotation of both the hand lever 1 and the locking shaft cable lever 16.
- the outer cable of the cable system 27 is best situated inside the lower trolley frame, as it is protected by the trolley frame if it hits a wall or curb. However, as the trolleys are stacked together, the cable can be damaged. To overcome this situation, integrating an outer guard 28 prevents the cable system 27 from being damaged in the stacking process. The protective guard 28 can also protect the cable system 27 in the cage of the trolley.
- the configuration lower component assembly 200 is compact and robust, capable of reliably locking wheels straight forwards or backwards, with minimal effort to operate when the trolley is pushed roughly straight forwards or backwards.
- the wheels can also be locked in opposite directions if one wheel becomes raised on uneven terrain, when both wheels fail to track together.
- Figure 5 illustrates an operative and an inoperative state in a side view of the upper component assembly of Figure 2.
- the hand lever 1 of the upper component assembly 100 can be mounted in a position that minimizes rotational drag of the hand lever 1 relative to the trolley handle 315, and at a height and an angle of an average person’s hand and arm position.
- the upper bushes 5, 8 give a low-friction configuration enabling smooth engagement and disengagement of the lower locking mechanism using the hand lever 1.
- the key-key-way pair 4, 5a can limit the angle
- SUBSTITUTE SHEET (RULE 26) of rotation of the hand lever 1 thereby preventing the lever 1 from squishing the user's fingers between the hand lever 1 and the trolley handle 315.
- the key-keyway pair 4, 5a can also act to alleviate stress on the lower locking shaft 10 and the cable lever 12.
- the key-key-way pair 4, 5a can stop the lever 1 from being pushed in the reverse direction of the engagement direction, which protects the preferable non-flexible cable from being bent backwards unfavourably.
- the key-key-way pair 4, 5a can hold the hand lever 1 in a stationary position that is off-centre of being level, thus using gravity to create positive pressure between the hand lever 1 and the lower locking mechanism, this may be assisted by integrating a known spring system to the locking shaft 10. Integrating a plate 3 to the hand lever 1 that can sit against the key 4 would prevent fingers from being pinched.
- the upper primary mount 6 can integrate a cable mount 7 that would allow the cable system 27 to be mounted in an adjustable configuration.
- the cable mount 7 can be positioned to minimise the friction between the inner and outer cable, as the invention would work best with a non-flexible cable. This can be designed around the rotation arc of the hand lever 1 and upper cable pin 2.
- the mechanism of the present disclosure described above is an ideal mechanism for shopping, airports, hospitals and ambulance environments, because the mechanism 1000 can give the user full manoeuvrability in its unlocked state by allowing free pivoting of all four caster wheels. Even if the area is too tight for dynamic locked wheel steering or if there is a trolley traffic jam, full manoeuvrability can be guaranteed. Moreover, the mechanism gives the user a direct feedback allowing the user to know when the wheels arc locked or arc ready to be locked. The mechanism can allow the user to engage and lock the wheels easily, when pushed roughly straight forwards or backwards, even with only using one finger to engage the locking mechanism. This mechanism can be compact, robust and can reinforce the front caster wheel frames 322. It can quickly be installed to an existing trolley, or the same mechanism can be incorporated to the trolley manufacturing process, reducing the number of pails needed to create this design configuration.
- the wheel locking components can be adapted to varying trolley applications which may involve multiple locking shafts and looking shaft mounts. attached to each desired wheel frame. For applications better suited for rough terrain, where a single locking shaft hinders terrain
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
- Control And Safety Of Cranes (AREA)
- Handcart (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2021376440A AU2021376440A1 (en) | 2020-11-03 | 2021-11-01 | Trolley control mechanism for a dynamic steer trolley |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2020903999 | 2020-11-03 | ||
AU2020903999A AU2020903999A0 (en) | 2020-11-03 | A trolley control mechanism for a rear steer trolley |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022094650A1 true WO2022094650A1 (en) | 2022-05-12 |
Family
ID=81458235
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2021/051283 WO2022094650A1 (en) | 2020-11-03 | 2021-11-01 | Trolley control mechanism for a dynamic steer trolley |
Country Status (2)
Country | Link |
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AU (1) | AU2021376440A1 (en) |
WO (1) | WO2022094650A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2269095A (en) * | 1992-07-30 | 1994-02-02 | Intuitive Products Internation | Hand-propelled trolly |
WO1995013199A1 (en) * | 1993-11-09 | 1995-05-18 | John Grantham | Castor locking device |
GB2398235A (en) * | 2003-02-12 | 2004-08-18 | Peter Collard | Trolley with castor swivel locks |
DE202004016228U1 (en) * | 2004-10-19 | 2005-07-07 | Maibohm, Wilhelm | Steering aid for shopping and transporting trolleys has lever on handle of trolley and which when operated acts through Bowden cables on mechanism on each rear wheel to block wheels around vertical axis parallel to direction of travel |
US20080116656A1 (en) * | 2004-09-15 | 2008-05-22 | Fernando Esteban Araya Moreno | Device For the Optional Guiding of at Least One Self-Steering Wheel of a Trolley |
AU2015200477A1 (en) * | 2014-01-30 | 2015-08-13 | McPherson, Donald John MR | Wheeled conveyance |
-
2021
- 2021-11-01 WO PCT/AU2021/051283 patent/WO2022094650A1/en active Application Filing
- 2021-11-01 AU AU2021376440A patent/AU2021376440A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2269095A (en) * | 1992-07-30 | 1994-02-02 | Intuitive Products Internation | Hand-propelled trolly |
WO1995013199A1 (en) * | 1993-11-09 | 1995-05-18 | John Grantham | Castor locking device |
GB2398235A (en) * | 2003-02-12 | 2004-08-18 | Peter Collard | Trolley with castor swivel locks |
US20080116656A1 (en) * | 2004-09-15 | 2008-05-22 | Fernando Esteban Araya Moreno | Device For the Optional Guiding of at Least One Self-Steering Wheel of a Trolley |
DE202004016228U1 (en) * | 2004-10-19 | 2005-07-07 | Maibohm, Wilhelm | Steering aid for shopping and transporting trolleys has lever on handle of trolley and which when operated acts through Bowden cables on mechanism on each rear wheel to block wheels around vertical axis parallel to direction of travel |
AU2015200477A1 (en) * | 2014-01-30 | 2015-08-13 | McPherson, Donald John MR | Wheeled conveyance |
Also Published As
Publication number | Publication date |
---|---|
AU2021376440A1 (en) | 2023-06-08 |
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