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WO1984003073A1 - Braking mechanism - Google Patents

Braking mechanism Download PDF

Info

Publication number
WO1984003073A1
WO1984003073A1 PCT/AU1984/000019 AU8400019W WO8403073A1 WO 1984003073 A1 WO1984003073 A1 WO 1984003073A1 AU 8400019 W AU8400019 W AU 8400019W WO 8403073 A1 WO8403073 A1 WO 8403073A1
Authority
WO
WIPO (PCT)
Prior art keywords
brake
trolley
wheel
latch
disc
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.)
Ceased
Application number
PCT/AU1984/000019
Other languages
French (fr)
Inventor
David James Demery
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AU24371/84A priority Critical patent/AU2437184A/en
Publication of WO1984003073A1 publication Critical patent/WO1984003073A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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

Definitions

  • This invention relates to trolleys such as shopping and luggage trolleys as well as to wheeled carts and the like. 5
  • trolleys such as shopping and luggage trolleys as well as to wheeled carts and the like. 5
  • the invention will be described in relation to shopping trolleys but it is to be understood that the invention is not limited thereto.
  • an object of the invention to provide a braking system for a trolley or other wheeled carts so that the user may exert control over movement of the trolley 15 wheels.
  • a trolley or cart comprising:-
  • a main frame having wheels 20
  • a brake adapted to engage one of the wheels
  • biasing means normally biasing the brake into engagement with the said one wheel
  • ⁇ * brake release means operable by the user to overcome the biasing means whereby the brake 25 may be moved from its normal engaged position to a position in which it is free of the wheel.
  • the brake mechanism includes a brake disc on each of the rear wheels of the trolley and the brake release means is arranged to release both brakes simultaneously.
  • Fig.l is a side elevational view of a trolley according to one embodiment of the invention
  • Fig.2 is an end elevation of the trolley shown in Fig.l
  • Fig.3 is an enlargd partly broken away perspective view of the trolley shown in Figs 1 & 2 with the brake mechanism in the "on" position, and,
  • Fig.4 is a view similar to Fig.3 with the brake mechanism in the "off" position.
  • the trolley 10 has a main frame 11 having a generally upright rear frame 12 in the form of an inverted "U".
  • the upper part 13 of the rear frame 12 is curved rearwardly from the remainder of the rear frame and the cross arm 14 constitutes a handle bar.
  • Extending forwardly from the lower end of each leg of the frame 11 is a bottom frame 15 which is in the form of a horizontally disposed "U".
  • the cross arm 16 of the bottom frame 15 is at the front of the trolley 10 and the side arms 17 of the bottom frame 15 each support a front wheel 18 of the trolley 10.
  • the rear wheels 19 of the trolley 10 are located at the bottom of of the rear frame 12.
  • the lower portion of each leg 20 of the rear frame 12 is vertical and above the lower portion, each leg 20 is inclined forwardly and then rearwardly.
  • a basket support frame 21 is attached to the rear frame 12 just above the forwardly inclined portion and to the bottom frame 15 by the brace 22.
  • the brake mechanism includes an inverted "U" shape member 23, the cross arm 24 of which constitutes a brake release lever and which is located below the handle bar 14 and retained by latch members 25 on the top portion of the rear frame 12.
  • the ends 26 of each leg 27 of the brake member 23 are supported by brackets 28 on the lower portion of the rear frame 12 at their extremeties have brake blocks 29 which are positioned above the rear wheels 19.
  • Each brake block 29 is in the form of a disc through which the mounting 30 of the rear wheels 19 pass.
  • a washer 31 is mounted on each brake member leg 27 above the lower bracket 28. Between the washer 31 and the top bracket 28 there is a spring 32 which acts to bias each brake disc 29 into engagement with its respective rear wheel 19.
  • a turnbuckle 36 is provided on each leg 27 to permit adjustment of the mechanism.
  • the brake release lever 24 When the user of the trolley wishes to release the brake, the brake release lever 24 is drawn towards the handle bar 14 to move the brake discs 29 away from the rear wheels 19 against the action of the springs 32.
  • the cross arm 24 is moved forward from the locking recess 33 of the latches 25 which usually retains the brake release lever 24 in the "brake-on”position (see Fig 3).
  • the forward portion 34 of each latch 25 is inclined downwardly to hold the brake in the "off” position (see Fig. 4).

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)

Abstract

A braking mechanism for a trolley (10) includes a brake disc (29) that overlies castor wheel (19) whereby the brake disc (29) is able to engage the wheel (19) irrespective of the disposition of the wheel (19). The brake disc (29) is biased into its on position by spring (32) and the brake release lever (24) is moved from the recess (33) to ramp (34) of latch (25) to release the brake.

Description

BRAKING MECHANISM
.FIELD OP INVENTION
This invention relates to trolleys such as shopping and luggage trolleys as well as to wheeled carts and the like. 5 For the sake of brevity the invention will be described in relation to shopping trolleys but it is to be understood that the invention is not limited thereto.
Hitherto, shopping trolleys have had free wheels which although acceptable in level areas such as in supermarket 10 stores, can cause problems for the user on ramps and sloping car park areas.
It is, therefore, an object of the invention to provide a braking system for a trolley or other wheeled carts so that the user may exert control over movement of the trolley 15 wheels.
DISCLOSURE OF THE INVENTION
According to the invention there is provided a trolley or cart comprising:-
(i) a main frame having wheels, 20 (ii) a brake adapted to engage one of the wheels, (iii) biasing means normally biasing the brake into engagement with the said one wheel, and, έ* (iv) brake release means operable by the user to overcome the biasing means whereby the brake 25 may be moved from its normal engaged position to a position in which it is free of the wheel. Preferably the brake mechanism includes a brake disc on each of the rear wheels of the trolley and the brake release means is arranged to release both brakes simultaneously. DESCRIPTION OF PREFERRED EMBODIMENTS
In order that the invention may be more readily understood and put into practical effect reference will now be made to the accompanying drawings in which:-
Fig.l is a side elevational view of a trolley according to one embodiment of the invention, Fig.2 is an end elevation of the trolley shown in Fig.l Fig.3 is an enlargd partly broken away perspective view of the trolley shown in Figs 1 & 2 with the brake mechanism in the "on" position, and,
Fig.4 is a view similar to Fig.3 with the brake mechanism in the "off" position. In the embodiment of the invention shown in the drawings one embodiment of the invention in which the trolley 10 has a main frame 11 having a generally upright rear frame 12 in the form of an inverted "U". The upper part 13 of the rear frame 12 is curved rearwardly from the remainder of the rear frame and the cross arm 14 constitutes a handle bar. Extending forwardly from the lower end of each leg of the frame 11 is a bottom frame 15 which is in the form of a horizontally disposed "U". The cross arm 16 of the bottom frame 15 is at the front of the trolley 10 and the side arms 17 of the bottom frame 15 each support a front wheel 18 of the trolley 10. The rear wheels 19 of the trolley 10 are located at the bottom of of the rear frame 12. The lower portion of each leg 20 of the rear frame 12 is vertical and above the lower portion, each leg 20 is inclined forwardly and then rearwardly. A basket support frame 21 is attached to the rear frame 12 just above the forwardly inclined portion and to the bottom frame 15 by the brace 22.
The brake mechanism includes an inverted "U" shape member 23, the cross arm 24 of which constitutes a brake release lever and which is located below the handle bar 14 and retained by latch members 25 on the top portion of the rear frame 12. The ends 26 of each leg 27 of the brake member 23 are supported by brackets 28 on the lower portion of the rear frame 12 at their extremeties have brake blocks 29 which are positioned above the rear wheels 19. Each brake block 29 is in the form of a disc through which the mounting 30 of the rear wheels 19 pass.
A washer 31 is mounted on each brake member leg 27 above the lower bracket 28. Between the washer 31 and the top bracket 28 there is a spring 32 which acts to bias each brake disc 29 into engagement with its respective rear wheel 19. A turnbuckle 36 is provided on each leg 27 to permit adjustment of the mechanism.
When the user of the trolley wishes to release the brake, the brake release lever 24 is drawn towards the handle bar 14 to move the brake discs 29 away from the rear wheels 19 against the action of the springs 32. The cross arm 24 is moved forward from the locking recess 33 of the latches 25 which usually retains the brake release lever 24 in the "brake-on"position (see Fig 3). The forward portion 34 of each latch 25 is inclined downwardly to hold the brake in the "off" position (see Fig. 4).
Various modifications may be made in details of design and construction without departing from the scope and ambit of the invention.
OMPI

Claims

1. A trolley or cart comprising:-
(i) a main frame supported by wheels, (ii) a brake adapted to engae one of the wheels, (iii) biasing means normally biasing the brake into engagement with the said one wheel, and, (iv) brake release means operable by the user to overcome the biasing means whereby the brake may be moved from -its normal engaged position to a position in which it is free of the wheel.
2. A trolley according to claim 1 wherein the brake includes a disc that overlies one wheel of the trolley.
3. A trolley according to claim 2 wherein the brake release means includes a bar that engages a latch on the main frame.
4. A trolley according to claim 3 wherein the latch has a recess in which the bar is held when the brake is in the "on" position.
5. A trolley according to claim 4 wherein the latch is inclined downwardly from the recessed portion to hold the brake in the "off" position.
6. A trolley according to claim 1 wherein the brake release means includes an inverted "U" shaped bar the ends of which each support a brake disc that overlie a respective wheel of the trolley so that each disc may engage its wheel irrespective of the disposition of the wheel.
PCT/AU1984/000019 1983-02-02 1984-02-02 Braking mechanism Ceased WO1984003073A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU24371/84A AU2437184A (en) 1983-02-02 1984-02-02 Braking mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU785983 1983-02-02

Publications (1)

Publication Number Publication Date
WO1984003073A1 true WO1984003073A1 (en) 1984-08-16

Family

ID=3698532

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1984/000019 Ceased WO1984003073A1 (en) 1983-02-02 1984-02-02 Braking mechanism

Country Status (2)

Country Link
EP (1) EP0134800A1 (en)
WO (1) WO1984003073A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090517A (en) * 1990-04-30 1992-02-25 Doughty Robert E Braking system for a grocery cart or the like
EP0509786A3 (en) * 1991-04-16 1993-01-13 Twil Handling & Display Limited Brake mechanism
US5288089A (en) * 1993-04-06 1994-02-22 Bowers A Dave Brake mechanism for telescoping shopping carts
US5813681A (en) * 1996-04-17 1998-09-29 Graco Children's Products Inc. Child walker
US6123343A (en) * 1997-12-09 2000-09-26 Nolting, Jr.; Herman F. Cart braking mechanism
US6481540B1 (en) 2001-07-12 2002-11-19 Herman F. Nolting, Jr. Cart brake release handle
US6494815B1 (en) 2000-02-18 2002-12-17 Kolcraft Enterprises, Inc. Walker with constantly applied brake
GB2468163A (en) * 2009-02-27 2010-09-01 Murtaza Hashan Alexander Nazham An automatically applied brake unit for a pushchair or trolley
DE202015106157U1 (en) 2015-11-13 2017-02-16 provita medical GmbH & Co. KG Operator aid for an automatic parking brake of a trolley, in particular of a luggage trolley or a passenger transport car

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1198211B (en) * 1960-04-12 1965-08-05 Elektromedizinische Werkstaett Device for blocking swivel castors
DE2002978A1 (en) * 1970-01-23 1971-07-29 Happe & Co Central braking and locking device for castors on hand vehicles, especially waste containers
DE2214693A1 (en) * 1972-03-25 1973-09-27 Manss Fa August BRAKE DEVICE FOR TRANSPORT EQUIPMENT, IN PARTICULAR LUGGAGE TRANSPORT CART
GB1338643A (en) * 1971-02-08 1973-11-28 Tomado Nv Sub-frame provided with castors
FR2202485A5 (en) * 1972-10-06 1974-05-03 Reunis Sa Ateliers
US3809202A (en) * 1971-06-16 1974-05-07 S Tyszkiewicz Luggage trolleys
DE2308094A1 (en) * 1973-02-19 1974-08-22 Bremshey Ag CHASSIS, ESPECIALLY OF SICK BEDS
AU5454073A (en) * 1972-04-14 1974-10-24 H. C. Micklem & Son Pty. Limited Improvements to pushers or prams
DE2336691A1 (en) * 1973-07-19 1975-01-30 Rubner Kg G E Hand powered transporter brake - operates both as driving and parking brake by pivoting handle against brake shoes
US3911525A (en) * 1973-09-01 1975-10-14 Acousa Saxon Sa Castor, particularly for hospital beds
DE2601843A1 (en) * 1975-01-29 1976-11-11 Walle Albert Van De DEVICE FOR BRAKING AND LOCKING A ROLLER
US4018449A (en) * 1975-12-16 1977-04-19 Patrick Suo Automatic braking device for nesting cart
US4084663A (en) * 1976-08-30 1978-04-18 Frederick Haley Automatic brake for wheeled carriages
DE2742108A1 (en) * 1977-09-19 1979-03-29 Manss Fa August Rolling and pivot brake for castor - has brake pad linked to handle by cable extending through support frame tube
DE2905893A1 (en) * 1978-02-20 1979-08-23 Plastic Omnium Cie BRAKE DEVICE FOR MOBILE CONTAINERS
EP0015774A1 (en) * 1979-03-13 1980-09-17 British Castors Limited Load carrier with brake mechanism
DE3108676A1 (en) * 1981-03-07 1982-09-23 Friedrich 8000 München Hauenstein Braking device for wheelchairs and the like

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1198211B (en) * 1960-04-12 1965-08-05 Elektromedizinische Werkstaett Device for blocking swivel castors
DE2002978A1 (en) * 1970-01-23 1971-07-29 Happe & Co Central braking and locking device for castors on hand vehicles, especially waste containers
GB1338643A (en) * 1971-02-08 1973-11-28 Tomado Nv Sub-frame provided with castors
US3809202A (en) * 1971-06-16 1974-05-07 S Tyszkiewicz Luggage trolleys
DE2214693A1 (en) * 1972-03-25 1973-09-27 Manss Fa August BRAKE DEVICE FOR TRANSPORT EQUIPMENT, IN PARTICULAR LUGGAGE TRANSPORT CART
AU5454073A (en) * 1972-04-14 1974-10-24 H. C. Micklem & Son Pty. Limited Improvements to pushers or prams
FR2202485A5 (en) * 1972-10-06 1974-05-03 Reunis Sa Ateliers
DE2308094A1 (en) * 1973-02-19 1974-08-22 Bremshey Ag CHASSIS, ESPECIALLY OF SICK BEDS
DE2336691A1 (en) * 1973-07-19 1975-01-30 Rubner Kg G E Hand powered transporter brake - operates both as driving and parking brake by pivoting handle against brake shoes
US3911525A (en) * 1973-09-01 1975-10-14 Acousa Saxon Sa Castor, particularly for hospital beds
DE2601843A1 (en) * 1975-01-29 1976-11-11 Walle Albert Van De DEVICE FOR BRAKING AND LOCKING A ROLLER
US4018449A (en) * 1975-12-16 1977-04-19 Patrick Suo Automatic braking device for nesting cart
US4084663A (en) * 1976-08-30 1978-04-18 Frederick Haley Automatic brake for wheeled carriages
US4116464A (en) * 1976-08-30 1978-09-26 Haley Frederick J Automatic brake for wheeled carriages
DE2742108A1 (en) * 1977-09-19 1979-03-29 Manss Fa August Rolling and pivot brake for castor - has brake pad linked to handle by cable extending through support frame tube
DE2905893A1 (en) * 1978-02-20 1979-08-23 Plastic Omnium Cie BRAKE DEVICE FOR MOBILE CONTAINERS
EP0015774A1 (en) * 1979-03-13 1980-09-17 British Castors Limited Load carrier with brake mechanism
DE3108676A1 (en) * 1981-03-07 1982-09-23 Friedrich 8000 München Hauenstein Braking device for wheelchairs and the like

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090517A (en) * 1990-04-30 1992-02-25 Doughty Robert E Braking system for a grocery cart or the like
EP0509786A3 (en) * 1991-04-16 1993-01-13 Twil Handling & Display Limited Brake mechanism
US5288089A (en) * 1993-04-06 1994-02-22 Bowers A Dave Brake mechanism for telescoping shopping carts
US5813681A (en) * 1996-04-17 1998-09-29 Graco Children's Products Inc. Child walker
US6123343A (en) * 1997-12-09 2000-09-26 Nolting, Jr.; Herman F. Cart braking mechanism
US6494815B1 (en) 2000-02-18 2002-12-17 Kolcraft Enterprises, Inc. Walker with constantly applied brake
US6481540B1 (en) 2001-07-12 2002-11-19 Herman F. Nolting, Jr. Cart brake release handle
GB2468163A (en) * 2009-02-27 2010-09-01 Murtaza Hashan Alexander Nazham An automatically applied brake unit for a pushchair or trolley
DE202015106157U1 (en) 2015-11-13 2017-02-16 provita medical GmbH & Co. KG Operator aid for an automatic parking brake of a trolley, in particular of a luggage trolley or a passenger transport car
DE102016114659B4 (en) 2015-11-13 2021-10-14 provita medical GmbH & Co. KG Operating aid for an automatic parking brake of a transport trolley, in particular of a luggage trolley or a passenger trolley

Also Published As

Publication number Publication date
EP0134800A1 (en) 1985-03-27

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