WO2009098560A1 - Vehicle seat - Google Patents

Vehicle seat Download PDF

Info

Publication number
WO2009098560A1
WO2009098560A1 PCT/IB2009/000134 IB2009000134W WO2009098560A1 WO 2009098560 A1 WO2009098560 A1 WO 2009098560A1 IB 2009000134 W IB2009000134 W IB 2009000134W WO 2009098560 A1 WO2009098560 A1 WO 2009098560A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
point
shoulder
cut
operator
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/IB2009/000134
Other languages
French (fr)
Inventor
Kimmo Wihinen
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.)
Valtra Oy AB
Original Assignee
Valtra Oy AB
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 Valtra Oy AB filed Critical Valtra Oy AB
Priority to US12/865,900 priority Critical patent/US8523285B2/en
Priority to EP09707445.4A priority patent/EP2247467B1/en
Publication of WO2009098560A1 publication Critical patent/WO2009098560A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B60N2/50—Seat suspension devices
    • B60N2/52—Seat suspension devices using fluid means
    • B60N2/525—Seat suspension devices using fluid means using gas
    • 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
    • B60N2/64—Back-rests or cushions
    • B60N2/643—Back-rests or cushions shape of the back-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
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • 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
    • B60N2/50—Seat suspension devices
    • B60N2/502—Seat suspension devices attached to the base of the seat
    • 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
    • B60N2/68—Seat frames
    • B60N2/688—Particular seat belt attachment and guiding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/02—Semi-passive restraint systems, e.g. systems applied or removed automatically but not both ; Manual restraint systems
    • B60R22/023—Three-point seat belt systems comprising two side lower and one side upper anchoring devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/18—Anchoring devices
    • B60R22/26—Anchoring devices secured to the seat

Definitions

  • the invention relates to a vehicle seat and particularly, but not exclusively, a seat fitted to a utility vehicle such as a tractor.
  • a seat for a utility vehicle comprising a base, a back support having an asymmetric profile which includes a cut-away portion at a position corresponding to a user's first shoulder, and a mounting point corresponding to a point located above the user's second shoulder for attachment of a three-point harness.
  • the invention involves the recognition of the operator's need to frequently twist their body to one side when looking behind them when operating machinery mounted at the rear of the vehicle for example. This is particularly applicable when the main instrument panel of the utility vehicle is located to that side of the operator.
  • the asymmetric profile having a cut-out portion allows freedom for the operator to twist his shoulder behind the seat thereby providing more comfort during operation of the vehicle.
  • the invention exploits the opposite side of the seat to provide a point to attach the upper part of a three-point harness.
  • the ergonomic provision of a three-point harness in a utility vehicle has traditionally proved difficult due to the added restriction of movement over the shoulder adjacent the upper part of the harness.
  • the acceptance that an operator need only turn to one side to view behind allows such incorporation.
  • the profile includes a further cut-away portion at a position corresponding to the user's second shoulder.
  • this provides a further reduction in the weight of the seat together with more freedom of movement of the operator's shoulders without reducing support for the spine.
  • a tractor provided with a seat as hereinbefore described.
  • Figure 1 is a perspective view from the front of a seat in accordance with an embodiment of the invention.
  • Figure 2 is a perspective view from the rear of the seat of Figure 1, and shown with an operator in the seat twisting to one side to view behind;
  • Figure 3 is a front view of the seat of Figure 1;
  • Figure 4 is a rear view of the seat of Figure 1.
  • a seat 10 comprises a base 12 and a back support 14.
  • the base 12 is fixed to a seat mount 16 which is mounted to the floor of a tractor cab (not shown).
  • the seat mount 16 comprises adjustable pneumatic suspension means which serves to provide a cushioning function to the operator.
  • Both the base 12 and back support 14 comprise a rigid frame covered by a cushioned fabric.
  • the back support 14 has an asymmetric profile 18, or outline, defined by its peripheral edge.
  • the profile 18 includes a cut-away portion 20 which corresponds to an operator's first shoulder 200.
  • the cut-away portion 20 provides the operator with an improved freedom to twist their body to one side, thereby allowing better access to view behind the seat 10 over the first shoulder 200.
  • the increased freedom for the operator to twist in one direction is particularly advantageous when the seat is implemented in a utility vehicle wherein the main instrument panel (used to operate any attached implements, not shown) is located to that side of the operator.
  • the main instrument panel used to operate any attached implements, not shown
  • a hedge trimmer attached to the rear of a tractor may be set up to operate to the right-hand side of a tractor.
  • the controls for the hedge trimmer may be located to the right of the operator.
  • the cut-away portion perhaps in combination with a rotating seat, allows comfortable freedom of movement for the operator.
  • a three-point harness comprises an upper belt 22 and a lower belt 24.
  • the upper belt 22 is fixably attached at one end to a mounting point 25 corresponding to a point located above the user's second shoulder.
  • the other end of the upper belt is
  • the lower belt 24 is fixably attached at one end to a lower attachment point 27 located on the base 12 at the side remote the cut-away portion 20, the belt 24 extending across the lap of the operator when in use, and being attached at the other end to the engagement member 26.
  • the profile includes a further cut-away portion 30 at a position corresponding to the operator's second shoulder. This leaves a spine supporting extension 34 which is a continuation of a support member 35 attached to the base 12 and to which the cushioned back support 14 is attached. Above a point corresponding to the top of the operator's spine, the spine supporting member 35 curves to the side above the operator's second shoulder and provides a member for location of the mounting point 25.
  • the combination of the cut-away portion 20 on one side and the curved portion of the spine supporting extension 34 on the other side provides an asymmetric back support profile around a hypothetical longitudinal vertical plane intersecting the centre of the seat.
  • the inventive profile is both functional and lightweight without any complex manufacturing steps.
  • the further cut-away portion is omitted leaving a profile designated by the dashed line 40 in Figure 3.
  • a seat for a utility vehicle comprising a base and a back support.
  • the back support has a profile which includes a cut-away portion at a position corresponding to a user's first shoulder, and a mounting point corresponding to a point located above the user's second shoulder for attachment of a three-point harness. Provision of the cut-away portion on one upper corner of the seat maintains a portion on the opposite side of the seat for location of the three-point harness thus delivering increased freedom of movement for the operator whilst incorporating safety requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Seats For Vehicles (AREA)

Abstract

A seat (10) for a utility vehicle comprising a base (12) and a back support (14) is provided. The back support has an asymmetric profile (18) which includes a cut-away portion (20) at a position corresponding to a user's first shoulder, and a mounting point (25) corresponding to a point located above the user's second shoulder for attachment of a three-point harness (22, 24). Provision of the cut-away portion on one upper corner of the seat maintains a portion on the opposite side of the seat for location of the three-point harness thus delivering increased freedom of movement for the operator whilst incorporating safety requirements.

Description

DESCRIPTION
VEHICLE SEAT
The invention relates to a vehicle seat and particularly, but not exclusively, a seat fitted to a utility vehicle such as a tractor.
It is an object of the present invention to provide an improved seat suitable for use in a utility vehicle.
According to the invention there is provided a seat for a utility vehicle comprising a base, a back support having an asymmetric profile which includes a cut-away portion at a position corresponding to a user's first shoulder, and a mounting point corresponding to a point located above the user's second shoulder for attachment of a three-point harness.
The invention involves the recognition of the operator's need to frequently twist their body to one side when looking behind them when operating machinery mounted at the rear of the vehicle for example. This is particularly applicable when the main instrument panel of the utility vehicle is located to that side of the operator. The asymmetric profile having a cut-out portion allows freedom for the operator to twist his shoulder behind the seat thereby providing more comfort during operation of the vehicle.
In recognition of the fact that the operator tends to turn to only one side in normal operation, the invention exploits the opposite side of the seat to provide a point to attach the upper part of a three-point harness. The ergonomic provision of a three-point harness in a utility vehicle has traditionally proved difficult due to the added restriction of movement over the shoulder adjacent the upper part of the harness. The acceptance that an operator need only turn to one side to view behind allows such incorporation.
In a preferred embodiment, the profile includes a further cut-away portion at a position corresponding to the user's second shoulder. Advantageously, this provides a further reduction in the weight of the seat together with more freedom of movement of the operator's shoulders without reducing support for the spine.
According to a further aspect of the invention there is provided a tractor provided with a seat as hereinbefore described.
ϋ*% WKQN Further advantages will become apparent from the following description of the invention, by way of example only, with reference to the accompanying drawings in which:
Figure 1 is a perspective view from the front of a seat in accordance with an embodiment of the invention;
Figure 2 is a perspective view from the rear of the seat of Figure 1, and shown with an operator in the seat twisting to one side to view behind;
Figure 3 is a front view of the seat of Figure 1; and,
Figure 4 is a rear view of the seat of Figure 1.
Referring to the drawings, a seat 10 comprises a base 12 and a back support 14. The base 12 is fixed to a seat mount 16 which is mounted to the floor of a tractor cab (not shown). The seat mount 16 comprises adjustable pneumatic suspension means which serves to provide a cushioning function to the operator. Both the base 12 and back support 14 comprise a rigid frame covered by a cushioned fabric.
The back support 14 has an asymmetric profile 18, or outline, defined by its peripheral edge. The profile 18 includes a cut-away portion 20 which corresponds to an operator's first shoulder 200. As can be seen from Figure 2, the cut-away portion 20 provides the operator with an improved freedom to twist their body to one side, thereby allowing better access to view behind the seat 10 over the first shoulder 200.
The increased freedom for the operator to twist in one direction is particularly advantageous when the seat is implemented in a utility vehicle wherein the main instrument panel (used to operate any attached implements, not shown) is located to that side of the operator. For example, a hedge trimmer attached to the rear of a tractor may be set up to operate to the right-hand side of a tractor. Furthermore, the controls for the hedge trimmer may be located to the right of the operator. The cut-away portion 20, perhaps in combination with a rotating seat, allows comfortable freedom of movement for the operator.
Referring again to the drawings, a three-point harness comprises an upper belt 22 and a lower belt 24. The upper belt 22 is fixably attached at one end to a mounting point 25 corresponding to a point located above the user's second shoulder. The other end of the upper belt is
c°mm w»flty attached to an engagement member 26 which serves to engage with a receiving slot when the harness is in use.
The lower belt 24 is fixably attached at one end to a lower attachment point 27 located on the base 12 at the side remote the cut-away portion 20, the belt 24 extending across the lap of the operator when in use, and being attached at the other end to the engagement member 26.
The profile includes a further cut-away portion 30 at a position corresponding to the operator's second shoulder. This leaves a spine supporting extension 34 which is a continuation of a support member 35 attached to the base 12 and to which the cushioned back support 14 is attached. Above a point corresponding to the top of the operator's spine, the spine supporting member 35 curves to the side above the operator's second shoulder and provides a member for location of the mounting point 25.
The combination of the cut-away portion 20 on one side and the curved portion of the spine supporting extension 34 on the other side provides an asymmetric back support profile around a hypothetical longitudinal vertical plane intersecting the centre of the seat. The inventive profile is both functional and lightweight without any complex manufacturing steps.
In an alternative embodiment, the further cut-away portion is omitted leaving a profile designated by the dashed line 40 in Figure 3.
In summary, there is provided a seat for a utility vehicle comprising a base and a back support. The back support has a profile which includes a cut-away portion at a position corresponding to a user's first shoulder, and a mounting point corresponding to a point located above the user's second shoulder for attachment of a three-point harness. Provision of the cut-away portion on one upper corner of the seat maintains a portion on the opposite side of the seat for location of the three-point harness thus delivering increased freedom of movement for the operator whilst incorporating safety requirements.
e*% K, Tion

Claims

1. A seat for a utility vehicle comprising a base, a back support having an asymmetric profile which includes a cut-away portion at a position corresponding to a user's first shoulder, and a mounting point corresponding to a point located above the user's second shoulder for attachment of a three-point harness.
2. A seat according to Claim 1, wherein the profile includes a further cut-away portion at a position corresponding to the user's second shoulder.
3. A seat according to Claim 1 or 2, further comprising a three-point harness attached to said mounting point.
4. A tractor provided with a seat according to any preceding claim.
c*% w%
PCT/IB2009/000134 2008-02-04 2009-01-27 Vehicle seat Ceased WO2009098560A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/865,900 US8523285B2 (en) 2008-02-04 2009-01-27 Vehicle seat
EP09707445.4A EP2247467B1 (en) 2008-02-04 2009-01-27 Vehicle seat

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0801972A GB2457087A (en) 2008-02-04 2008-02-04 Vehicle seat
GB0801972.1 2008-02-04

Publications (1)

Publication Number Publication Date
WO2009098560A1 true WO2009098560A1 (en) 2009-08-13

Family

ID=39204156

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/000134 Ceased WO2009098560A1 (en) 2008-02-04 2009-01-27 Vehicle seat

Country Status (4)

Country Link
US (1) US8523285B2 (en)
EP (1) EP2247467B1 (en)
GB (1) GB2457087A (en)
WO (1) WO2009098560A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9580147B2 (en) 2011-09-16 2017-02-28 Malibu Boats, Llc Surf wake system for a watercraft
DE102015122720B4 (en) * 2015-12-23 2017-07-27 Grammer Ag Backrest with integrated upper body support
US11370508B1 (en) 2019-04-05 2022-06-28 Malibu Boats, Llc Control system for water sports boat with foil displacement system
US11932356B1 (en) 2020-08-24 2024-03-19 Malibu Boats, Llc Powered swim platform
US12172732B1 (en) 2021-06-17 2024-12-24 Brunswick Corporation Swim platform assemblies for boats
US12595026B1 (en) 2022-04-28 2026-04-07 Brunswick Corporation Patio dive doors for marine vessels having a swim step assembly
US12606274B1 (en) 2022-10-11 2026-04-21 Brunswick Corporation Swim platform assemblies for boats

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935120A (en) 1956-07-05 1960-05-03 Glen L Naus Seat and backrest for a locomotive seat
JPS57144136A (en) * 1981-02-28 1982-09-06 Tachikawa Spring Co Ltd Industrial vehicle seat
DE29804359U1 (en) * 1998-03-12 1998-07-16 Grammer Ag, 92224 Amberg Seat, in particular driver's seat for a vehicle
JP2007119202A (en) * 2005-10-31 2007-05-17 Mitsubishi Heavy Ind Ltd Seat for forklift

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3466089A (en) * 1968-01-22 1969-09-09 Harvey H Stueckle Self-leveling tractor seat
GB1427564A (en) * 1973-03-03 1976-03-10 Hamy N Restraint system for vehicle occupants
NO158403C (en) * 1984-05-08 1988-09-07 Peter Opsvik DEVICE AT CHAIR.
DE3530495A1 (en) * 1985-08-27 1987-03-05 Porsche Ag SAFETY BELT, ESPECIALLY 3-POINT SAFETY BELT FOR VEHICLES, AIRPLANES OR THE LIKE
US4832407A (en) * 1987-11-27 1989-05-23 Hector Serber Variable posture chair and method
US5186519A (en) * 1990-11-15 1993-02-16 Larson John E Workplace chair
US5328245A (en) * 1992-10-30 1994-07-12 Thomas J. Marks Chair having adjustable back support
US6027171A (en) * 1995-11-27 2000-02-22 Lear Corporation Automotive modular seat frame assembly
US6550858B1 (en) * 2000-09-21 2003-04-22 Lear Corporation Extricable seat assembly
GB0114581D0 (en) * 2001-06-14 2001-08-08 White Adam Twister seat
USD461064S1 (en) * 2001-08-08 2002-08-06 Tim Fogderud Musician's performance chair
CA99607S (en) * 2002-05-30 2003-01-30 Ed Keilhauer Automotive spinal support
US6986549B2 (en) * 2003-03-19 2006-01-17 Leif Kniese Seating element

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935120A (en) 1956-07-05 1960-05-03 Glen L Naus Seat and backrest for a locomotive seat
JPS57144136A (en) * 1981-02-28 1982-09-06 Tachikawa Spring Co Ltd Industrial vehicle seat
DE29804359U1 (en) * 1998-03-12 1998-07-16 Grammer Ag, 92224 Amberg Seat, in particular driver's seat for a vehicle
JP2007119202A (en) * 2005-10-31 2007-05-17 Mitsubishi Heavy Ind Ltd Seat for forklift

Also Published As

Publication number Publication date
EP2247467B1 (en) 2016-03-23
GB0801972D0 (en) 2008-03-12
US20110049961A1 (en) 2011-03-03
GB2457087A (en) 2009-08-05
EP2247467A1 (en) 2010-11-10
US8523285B2 (en) 2013-09-03

Similar Documents

Publication Publication Date Title
EP2247467B1 (en) Vehicle seat
US10232752B2 (en) Cushion pan for a vehicle seat assembly
US8998335B2 (en) Vehicle seat and commercial vehicle
US20150306999A1 (en) Vehicle seat
US8550566B2 (en) Seat belt and construction machine equipped therewith
US8967712B2 (en) Skin for seat back of vehicle seat
US8007045B2 (en) Headrest for a vehicle seat
TWI635974B (en) Seat for vehicle
EP2261075B1 (en) Cushion mat assembly for use in a vehicle seat
US20120256461A1 (en) Backrest adjustment device for a vehicle seat or a vehicle bench seat
JP2009525219A (en) Vehicle seats, especially shell type vehicle seats
US20060232118A1 (en) Operator seat for an industrial vehicle
JPH05112205A (en) Seat belt device of car
US6609757B2 (en) Vehicle seat
US8235469B2 (en) Adjustable belt guide for the upper hold point of a three-point seat belt and vehicle seat with integrated three-point seat belt
KR102845655B1 (en) Seat belt for agricultural Vehicle
JP3543596B2 (en) Car floor structure
JPH06191378A (en) Seat belt guide device
JP3393824B2 (en) Armrest structure of seat
GB2435244A (en) A safety harness assembly partly located within a vehicle seat
US20060131941A1 (en) Two way seat
JPH11240414A (en) Vehicle seat belt device
WO2025151058A1 (en) Outdoor power tool harness
KR200267047Y1 (en) A simple seat cover of a cars
KR200345368Y1 (en) Loop assist handle

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09707445

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2009707445

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 12865900

Country of ref document: US