GB2277869A - Safety restraining device for the driver of a lift truck - Google Patents

Safety restraining device for the driver of a lift truck Download PDF

Info

Publication number
GB2277869A
GB2277869A GB9406838A GB9406838A GB2277869A GB 2277869 A GB2277869 A GB 2277869A GB 9406838 A GB9406838 A GB 9406838A GB 9406838 A GB9406838 A GB 9406838A GB 2277869 A GB2277869 A GB 2277869A
Authority
GB
United Kingdom
Prior art keywords
restraining
pivoting arms
restraining device
driver
portions
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.)
Granted
Application number
GB9406838A
Other versions
GB2277869B (en
GB9406838D0 (en
Inventor
Michael Niebuhr
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.)
Jungheinrich AG
Original Assignee
Jungheinrich AG
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 Jungheinrich AG filed Critical Jungheinrich AG
Publication of GB9406838D0 publication Critical patent/GB9406838D0/en
Publication of GB2277869A publication Critical patent/GB2277869A/en
Application granted granted Critical
Publication of GB2277869B publication Critical patent/GB2277869B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2/986—Side-rests
    • B60N2/99—Side-rests adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/75—Arm-rests
    • B60N2/79—Adaptations for additional use of the arm-rests
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2/986—Side-rests
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R2021/0065—Type of vehicles
    • B60R2021/0074—Utility vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R2021/0206—Self-supporting restraint systems, e.g. restraining arms, plates or the like
    • B60R2021/022—Self-supporting restraint systems, e.g. restraining arms, plates or the like mounted on seats

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Seats For Vehicles (AREA)
  • Passenger Equipment (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Description

2277869 1 A Restraining Device for the Driver's Seat of a Lift Truck The
present invention relates to a restraining device for the driver's seat of a lift truck.
It has become known for lift trucks to use automotive vehicle restraining systems comprising pelvic, three-point and braces belts. Such restraining systems are not widely accepted by the drivers of lift trucks, however, because they are relatively complicated and time consuming to put on and restrict the freedom of movement in the driver's shoulder area. There is a reluctance to use known restraining systems even though it has become known that severe and lethal accidents can result if the driver purposely or inadvertently leaves the seat during operation of the lift truck.
EP-A-0057063 discloses a pivotable protective bracket comprising a pair of U-shaped portions connected to each other by a restraining rod. One leg of the U-shaped portions is mounted to the front portion of the driver's cabin, so as to be pivotal about a horizontal axis, while the restraining rod engages the free end of the other legs.
The structure of such a protective bracket is relatively complex and restrictive as to freedom of movement in the driver's leg area.
The problem to be solved is thus to provide a restraining device for the driver's seat of a lift truck, which restricts the freedom of movement of the driver during operation as little as possible yet nevertheless provides for effective protection from accidents.
According to the present invention, there is provided a restraining device for the driver's seat of a lift truck, wherein a restraining means is provided comprising a pair of arcuate pivoting arms, each having a rear portion pivotally mounted about a substantially vertical axis and 2 a front restraining portion adjustable between a rest position laterally of a driver's seat and a restraining position in front of the pelvic area of a driver when the pivoting arms are pivoted, and a releasable locking means is provided to lock the pivoting arms in the rest position.
According to a further development of the invention, each of the restraining portions preferably includes padding to be upholstered and preferably includes at least a portion which is pivotally mounted, for example intermediate its ends, so as to be adaptable to various driver body dimensions.
The pivoting arms may thus form arm rests, and the rear portions of the pivoting arms may be disposed within a housing at the rear side of a back rest of the seat and extend outwards through a transverse slot in the housing.
According to a further development of the invention the pivoting arms preferably co-operate at their rear ends with a coupling mechanism such that they are pivotal in synchronism. To this end, according to a further development of the invention, the rear portions of the pivoting arms cross each other, and each of the crossed portions includes a longitudinal slot through which a pin extends. Preferably the pin is guided so as to be adjustable perpendicularly to the back rest of the driver's seat.
As an alternative it is possible to provide a slot in one arm and a pin in the other arm or a push-pull linkage to provide for the required synchronisation.
The restraining device of the present invention may be readily put into use. When it is in the rest position laterally of the seat it provides sufficient space for the driver to enter the truck so that even drivers of substantial dimensions are not restricted as to freedom of movement. The driver may pi'vot the arms to in f ront of the pelvic area by pulling the restraining portions forwards so as to lock them in the restraining position. It is to be noted that an adjustment drive may be provided for 3 performing the described displacement of the pivoting arms. To this end there may be provided at least one release member for actuating the adjustment drive, for example buttons on the upper side or in other areas of the pivoting arms. It is possible to use the same button for unlocking the locking means so that both pivoting arms are pivoted back from the restraining position into the rest position when the button is pushed. of course, separate actuating members may be provided for the locking means and the adjustment drive. As an alternative a switch or a sensor may be included in the seat in order to automatically pivot the pivoting arms to the restraining position when the driver sits down on the seat. Release of the pivoting arms may then be performed by an actuating member.
The restraining device of the present invention retains the operator safely on the seat when there is an accident, and restriction of freedom of movement in operation is minimal.
The restraining device of the present invention may be mounted subsequently to existing vehicles or seats and requires little space.
An example of the invention will now be explained in more detail with reference to the accompanying drawings in which:- Fig. 1 is a perspective view of a driver's seat with a schematically shown driver and a restraining device of the present invention; and Fig. 2 is a schematic plan view of the driver's seat and the restraining device of Fig. 1 but without the driver.
As shown in Fig. 1, a lift truck includes a front seat assembly (not shown) and a seat 10 - the seat 10, which may be mounted in the lift truck so as to be adjustable for example by means of slide tracks 12, includes a seat portion 14 having a seat surface 16 and a back rest 18.
As shown in Fig. 2, the seat 10 has associated therewith a restraining device comprising a pair of 4 pivoting arms 20, 22. The arms 20, 22 each comprise an arcuate restraining portion 24, 26 provided with padding. A rear portion 28, 30 is mounted to the restraining portion 24, 26 so as to extend therefrom substantially perpendicularly, the ends of the rear portions 28, 30 being mounted at 32 to the rear side of the back rest 18 so as to be pivotal about a substantially vertical axis. The shape of the pivoting arms, their dimensions and their pivotal mountings are such that the restraining 10 portions 24, 26 can be pivoted from a rest position shown in solid lines to a restraining position shown in dotted lines. More particularly, the restraining portions 24, 26 each move in a circular arc to a location in front of the is pelvis of a driver 34. The free ends of the restraining portions 24, 26 are spaced apart by a distance A which is small enough to allow for restraining also of drivers of small body dimensions in case of an accident. When in the rest position, the free ends are spaced apart by a distance 20 B which is sufficient to allow for drivers of substantial body dimensions readily to sit down on the seat 10. As may be seen from Figs. 1 and 2 the pivoting arms 20, 22 and, respectively, the restraining portions 24, 26 are arranged so that they serve also as arm rests. The crossing rear portions 28, 30 are provided with longitudinal slots 36, 38 through which a pin 40 extends. The pin 40 is mounted so as to be displaceable transversely to the back rest 18 so as to allow for synchronous displacements of the pivoting arms 20, 22. A portion of 30 each of the rear portions 28, 30 is disposed within a housing 42 and is held in a corresponding transverse slot allowing pivotal movements of the pivoting arms 20, 22. Furthermore, the pivoting arms 20, 22 are guided by such_a slot and are supported from below. The pivoting arms 20, 22 have associated therewith a locking means (not shown) for retaining the pivoting arms in the restraining position. only when the driver arbitrarily releases the pivoting arms 20, 22 can they be pivoted back into the rest position. To this end, push buttons 44, 46 may be provided on the upper side of the restraining portions 24, 26, which push buttons can be connected to the locking means (not shown) via a linkage or a tie cable.
As may be seen the pivoting arms 20, 22 can be actuated by the driver and pivoted into the restraining position. Similarly the driver may return the arms 20, 22 to the rest position. As an alternative it would be possible to provide for semi or fully automatic operation.
For example it is possible to provide a pneumatic or electrical drive for displacing the arms 20, 22 to and from the restraining position when it is released. To this end is a release member (not shown) may be provided, which release member may be coupled to the push buttons 44, 46. The seat surface 16 may have associated therewith a sensor for detecting that the driver has sat down so as to allow for automatic displacement of the pivoting arms 20, 22 into the restraining position. The arms 20, 22 could be provided with spring means for biasing the arms 20, 22 towards either the restraining position or the rest position.
It would be possible to integrate the pivoting arms 20, 22 into a safety device for the lift truck for example, it would be possible to provide that operation of the lift truck is prevented until the pivoting arms 20, 22 are in the restraining position.
As may be appreciated the restraining device as shown may be subsequently mounted to a lift truck. Furthermore its space requirements are minimal, and it can be readily assembled. Because it is an integral part of the seat 10, the seat 10 may be adjusted within wide limits without interfering with the operation of the restraining device.
Finally, if the restraining portions 24, 26 are pivotally mounted intermediate their ends, preferably about vertical axes, in a manner similar to the pivotal mounting 6 of nose supports of glasses, an even better adaptation to the respective body dimensions of the drivers is achieved.
7

Claims (12)

1. A restraining device for the driver's seat of a lift truck, wherein a restraining means is provided comprising a pair of arcuate pivoting arms, each having a rear portion pivotally mounted about a substantially vertical axis and a front restraining portion adjustable between a rest position laterally of a driver's seat and a restraining position in front of the pelvic area of a driver when the pivoting arms are pivoted, and a releasable locking means is provided to lock the pivoting arms in the rest position.
2. A restraining device according to claim 1, in which the restraining portions of the pivoting arms are upholstered.
is
3. A restraining device according to claim 1 or claim 2, in which each of the restraining portions is pivotally mounted intermediate its ends.
4. A restraining device according to any one of claims 1 to 3, in which the pivoting arms have their rear ends co- operate with a coupling mechanism such that they are pivotal in synchronism.
5. A restraining device according to claim 4, in which the rear portions of the pivoting arms cross each other and each of the crossed portions includes a longitudinal slot through which a pin extends.
6. A restraining device according to any preceding claim, in which the pivoting arms form arm rests.
7. A restraining device according to any preceding claim, in which the rear portions of the pivoting arms are disposed within a housing at the rear side of a back rest of the seat and extend outwards through a transverse slot in the housing.
8. A restraining device according to any preceding claim, in which an actuating member is mounted to the restraining portions of the pivoting arms for releasing the locking means.
8
9. A restraining device according to claim 8, in which the actuating member is in the f orm of at least one release button.
10. A restraining device according to any preceding claim, in which the pivoting arms have associated therewith an adjustment drive actuatable by a release member.
11. A restraining device according to claim 8 and claim 10, in which the actuating member is also the release member.
12. A restraining device substantially as hereinbef ore described with reference to the accompanying drawings.
GB9406838A 1993-05-12 1994-04-07 Safety restraining device for the driver of a lift truck Expired - Fee Related GB2277869B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4315824A DE4315824C2 (en) 1993-05-12 1993-05-12 Restraint device for the driver's seat of an industrial truck

Publications (3)

Publication Number Publication Date
GB9406838D0 GB9406838D0 (en) 1994-06-01
GB2277869A true GB2277869A (en) 1994-11-16
GB2277869B GB2277869B (en) 1997-02-05

Family

ID=6487883

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9406838A Expired - Fee Related GB2277869B (en) 1993-05-12 1994-04-07 Safety restraining device for the driver of a lift truck

Country Status (4)

Country Link
DE (1) DE4315824C2 (en)
FR (1) FR2705069B1 (en)
GB (1) GB2277869B (en)
IT (1) IT1271644B (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5938237A (en) * 1994-10-20 1999-08-17 Linde Aktiengesellschaft Driver restraint device for an industrial truck
US6234525B1 (en) 1997-04-28 2001-05-22 Still Gmbh Driver restraint device for an industrial truck
FR2915443A1 (en) * 2007-04-27 2008-10-31 Peugeot Citroen Automobiles Sa Safety device for seat of motor vehicle, has two arms pivoted with respect to each other between deployed/utilization position in which arms are laterally spaced and limited space position in which arms are folded one towards other
US7669935B2 (en) * 2005-11-14 2010-03-02 Michael John Crossley Protective chair
US20110012407A1 (en) * 2009-07-20 2011-01-20 Bp Children's Products Hk Co., Limited Safety device used in combination with child seat assembly
ITPD20100307A1 (en) * 2010-10-15 2012-04-16 Carraro Spa SECURITY SYSTEM FOR AN AGRICULTURAL VEHICLE OPERATOR
EP2599661A1 (en) * 2011-11-30 2013-06-05 Grammer Ag Vehicle seat and commercial vehicle
US8998335B2 (en) 2011-11-30 2015-04-07 Grammer Ag Vehicle seat and commercial vehicle
GB2522253A (en) * 2014-01-20 2015-07-22 Jankel Armouring Ltd An improved seat
US9120405B2 (en) 2011-11-30 2015-09-01 Grammer Ag Vehicle seat with lateral support element
US9221362B2 (en) 2013-06-26 2015-12-29 Grammer Ag Vehicle seat and utility vehicle comprising at least one vehicle seat
US9283871B2 (en) 2013-06-26 2016-03-15 Grammer Ag Vehicle seat and utility motor vehicle comprising a vehicle seat
US9527409B2 (en) 2013-06-26 2016-12-27 Grammer Ag Vehicle seat and utility motor vehicle comprising a vehicle seat
US9604557B2 (en) 2014-04-16 2017-03-28 Grammer Ag Dust-insensitive slide rail
US9610864B2 (en) 2013-06-26 2017-04-04 Grammar Ag Vehicle seat and utility motor vehicle comprising a vehicle seat

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2778878B1 (en) * 1998-05-19 2000-06-30 Maurice Gabillet SAFETY SEAT SEAT FOR VEHICLES
US6808038B2 (en) 1998-10-10 2004-10-26 Schneider Fahrkomfort Gmbh Retaining device for utility vehicles
EP1145918A2 (en) 2000-04-14 2001-10-17 Hans Sauermann Safety device for vehicles, in particular for handling vehicles
DE10114180A1 (en) * 2001-03-23 2002-09-26 Still Gmbh Fork lift truck has two stirrups supporting driver's seat back, in which controls for starting truck are fitted
DE102005061982B4 (en) * 2005-12-23 2012-10-18 Audi Ag Vehicle seat with two armrests
DE102009055049A1 (en) * 2009-12-21 2012-02-02 Robert Bosch Gmbh Device and method for adapting the seat friction for a vehicle
NL2020295B1 (en) 2018-01-18 2019-07-29 Peeters Landbouwmach Vehicle

Citations (4)

* Cited by examiner, † Cited by third party
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GB1178444A (en) * 1967-09-16 1970-01-21 Hugh Lesley Bennett Vehicle Seats.
GB1189985A (en) * 1966-08-01 1970-04-29 Ernest John Leech Improved Safety Harness for a Motor Vehicle
GB2144323A (en) * 1983-08-04 1985-03-06 Clark Equipment Co Safety seat assembly
EP0314886A2 (en) * 1987-11-04 1989-05-10 Tatuya Mikami Vehicular seat

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FR1134928A (en) * 1955-10-17 1957-04-19 Renault Safety seat for motor vehicles
FR1307758A (en) * 1961-11-28 1962-10-26 Retractable safety arm for motor vehicle seats
US3409326A (en) * 1966-10-10 1968-11-05 Fredrick G. Kerner Safety seat for vehicles
US3623768A (en) * 1970-08-05 1971-11-30 Stanford Research Inst Vehicular safety seat
US4397371A (en) * 1981-01-26 1983-08-09 Clark Equipment Company Loader operator restraint system
US4813746A (en) * 1987-08-27 1989-03-21 Mulholland Designs, Inc. Wheelchair pelvic support arms
US5129478A (en) * 1990-07-31 1992-07-14 Toyo Umpanki Co., Ltd. Seat occupant restraining device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1189985A (en) * 1966-08-01 1970-04-29 Ernest John Leech Improved Safety Harness for a Motor Vehicle
GB1178444A (en) * 1967-09-16 1970-01-21 Hugh Lesley Bennett Vehicle Seats.
GB2144323A (en) * 1983-08-04 1985-03-06 Clark Equipment Co Safety seat assembly
EP0314886A2 (en) * 1987-11-04 1989-05-10 Tatuya Mikami Vehicular seat

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5938237A (en) * 1994-10-20 1999-08-17 Linde Aktiengesellschaft Driver restraint device for an industrial truck
US6234525B1 (en) 1997-04-28 2001-05-22 Still Gmbh Driver restraint device for an industrial truck
US7669935B2 (en) * 2005-11-14 2010-03-02 Michael John Crossley Protective chair
FR2915443A1 (en) * 2007-04-27 2008-10-31 Peugeot Citroen Automobiles Sa Safety device for seat of motor vehicle, has two arms pivoted with respect to each other between deployed/utilization position in which arms are laterally spaced and limited space position in which arms are folded one towards other
US8398329B2 (en) * 2009-07-20 2013-03-19 Bp Children's Products Hk Co., Limited Safety device used in combination with child seat assembly
US20110012407A1 (en) * 2009-07-20 2011-01-20 Bp Children's Products Hk Co., Limited Safety device used in combination with child seat assembly
ITPD20100307A1 (en) * 2010-10-15 2012-04-16 Carraro Spa SECURITY SYSTEM FOR AN AGRICULTURAL VEHICLE OPERATOR
US9266447B2 (en) 2011-11-30 2016-02-23 Grammer Ag Vehicle seat and commercial vehicle
EP2599661A1 (en) * 2011-11-30 2013-06-05 Grammer Ag Vehicle seat and commercial vehicle
CN103129423A (en) * 2011-11-30 2013-06-05 格拉默股份有限公司 Vehicle seat and commercial vehicle
US8998335B2 (en) 2011-11-30 2015-04-07 Grammer Ag Vehicle seat and commercial vehicle
US9120405B2 (en) 2011-11-30 2015-09-01 Grammer Ag Vehicle seat with lateral support element
CN103129423B (en) * 2011-11-30 2015-09-09 格拉默股份有限公司 Automotive seat and load-carrying vehicle
US9283871B2 (en) 2013-06-26 2016-03-15 Grammer Ag Vehicle seat and utility motor vehicle comprising a vehicle seat
US9221362B2 (en) 2013-06-26 2015-12-29 Grammer Ag Vehicle seat and utility vehicle comprising at least one vehicle seat
US9527409B2 (en) 2013-06-26 2016-12-27 Grammer Ag Vehicle seat and utility motor vehicle comprising a vehicle seat
US9610864B2 (en) 2013-06-26 2017-04-04 Grammar Ag Vehicle seat and utility motor vehicle comprising a vehicle seat
GB2522253A (en) * 2014-01-20 2015-07-22 Jankel Armouring Ltd An improved seat
GB2522253B (en) * 2014-01-20 2017-11-08 Jankel Armouring Ltd An improved seat
US9604557B2 (en) 2014-04-16 2017-03-28 Grammer Ag Dust-insensitive slide rail

Also Published As

Publication number Publication date
FR2705069B1 (en) 1995-07-13
DE4315824A1 (en) 1994-11-17
ITMI940889A0 (en) 1994-05-06
GB2277869B (en) 1997-02-05
IT1271644B (en) 1997-06-04
ITMI940889A1 (en) 1995-11-06
DE4315824C2 (en) 1996-02-29
GB9406838D0 (en) 1994-06-01
FR2705069A1 (en) 1994-11-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070407