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
  • B60N2/005—Arrangement or mounting of seats in vehicles, e.g. dismountable auxiliary seats
  • B60N2/015—Attaching seats directly to vehicle chassis
  • B60N2/01508—Attaching seats directly to vehicle chassis using quick release attachments
  • B60N2/01516—Attaching seats directly to vehicle chassis using quick release attachments with locking mechanisms
  • B60N2/01583—Attaching seats directly to vehicle chassis using quick release attachments with locking mechanisms locking on transversal elements on the vehicle floor or rail, e.g. transversal rods
• • 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
  • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
  • B60N2/20—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being tiltable, e.g. to permit easy access

Definitions

• the present invention is related to locking mechanisms used in vehicle seats.
• the said mechanism is related to functional surface in the pawl and a new spring design, which have the characteristic of resistance to heavy loads, and collapsing easily, and provides an easy collapsing by applying small force.
• the present invention is used in backrest, sitting, lower parts and floor of the vehicle seats.
• the locking mechanism is provided on the seat or vehicle, and connects the seat to the vehicle. It can be used as the floor latch, backrest latch, rear seat front locking and back adjust mechanism.
• the locking mechanism comprises a main mounting plate or body, and a pawl is provided on said mounting plate; wherein, the said pawl includes locking houses and positioning radiuses thereon. It comprises a safety cam fixed on an axis different from the functioning axis of the pawl so as to move rotationally, and comfort cam positioned on a same axis with the said safety cam, and a spring connected between said comfort cam and pawl.
• Wedge angle and tolerances (functionality) determining the necessary loads for the lock to be opened are on the comfort cam in the present mechanisms.
• the surface of the comfort cam is in contact with the corner of pawl. Therefore, the corner of the pawl has importance.
• production based fractures at the corner of the pawl and radius on the top surface may occur, and it can affect the functionality.
• a German patent numbered WO2004069585 has been encountered in the patent search related to the state of art.
• This application discloses a locking mechanism used in the vehicles and it comprises a mounting part to which the mechanism is mounted, a ratchet and at least a safety part at a rotating position on the mounting part, a functioning surface created on the latch part, a second functioning surface on the main ratchet, and a torque ratchet.
• An ordinary spring is used between the main ratchet and latch part in said mechanism.
• Another German application numbered DE20200600884U1 also comprises a case provided in the locking and adjustment box, and vehicle base plate attached to the seat and slide rails between thereof, a rotary complementary part to activate or deactivate the outer contours if locking mechanism in an order created in U-form, and a micro contactor.
• the mechanism comprises a spring.
• the object of the present invention is to have different characteristic offering a new development when compared to the vehicle locking mechanisms used in prior art.
• the object of the present invention is to put the functionality on the pawl instead of comfort cam.
• the functionality losses caused by the fractures arising from the production in the present system are prevented.
• An object of the present invention is to separate functional surfaces by providing two surfaces rather than one surface on the pawl. In addition, the said surfaces can be found on two separate parts.
• An object of the present invention is to include rotation axis and functioning axes of new designed spring at different points contrary to the present embodiments. In this case, opening load is minimized, as the rotating angle of the spring around its own axis is at the minimum level, although the opening angle of the lock is higher.
• the object of the present invention is that the rotation point of the spring can be at the same or different point with the rotation point of the pawl.
• the present invention comprises a comfort cam compressing the pawl permanently, preventing the noise and providing the tolerances when the vehicle is on the move.
• the present invention is related to floor latch mechanism for vehicle seats, which comprises a pawl including pin housing into which locking pin is nested, and a safety cam receiving the force transferred by the said pawl, characterized in that it comprises a main spring positioned at the rotating axis of the said pawl, and one end of which is connected with the safety cam, a comfort spring positioned on the said functioning axis and one end of which is connected with the comfort cam, and a comfort cam compressing the pawl by means of said comfort spring.
• Figure-1 The general perspective view of the latch mechanism according to the invention together with the novel spring embodiment.
• Figure-2 The perspective view of spring end connection areas together with detail views.
• Figure-3 The rear perspective view of spring end connection area.
• Figure-4 The view of locking mechanism according to the invention in locked position.
• Figure-4.1 The detail view showing that inner contact circular surface (D) of pawl and outer contact circular surface (D1) of comfort cam are at different axes.
• Figure-5 The view of locking mechanism according to the invention in open position.
• Figure-6 The representative views from different angles of the alternative embodiment indicating that the gradual surfaces in the pawl are created by means of two independent parts instead of single part.
• Figure-7 The perspective view together with detailed view showing the gradual surfaces on the pawl.
• Figure-7.1 The perspective view together with detailed view from different angles showing the gradual surfaces on the pawl.
• the present invention is related to floor latch mechanism for vehicle seats, and it comprises a pawl (20) including locking pin area (21) into which locking pin (60) is nested, and a safety cam (40) receiving the force transferred by the said pawl (20), an adaptation plate (10), on which said pawl (20) and safety cam (40) are positioned so as to rotate, and all the parts in the mechanism are configured, main spring (50) positioned at the rotation axis (A) of said pawl (20), and one end of which is connected to the safety cam (40), comfort cam spring (54) positioned at the rotation axis (B) of said comfort and safety cam and a comfort cam (30) compressing the pawl by means of said comfort cam spring (54).
• the said invention comprises spring rotation axes (51) positioned at the said rotation axis (A) and comfort and safety cam rotation axis (B), and to which, said main spring (50) and comfort cam spring (54) are fixed, main spring rear end (53) connected in the spring connection point (15) of main spring front end (52), a main spring (50) connected with safety cam (40) and positioned at the rotation axis in helical manner, the other comfort cam spring rear end (542) connected with the cutout ( 1) of the comfort cam spring front end (541), a comfort cam spring (54) connected with comfort cam (30) and positioned at the comfort and safety cam rotation axis (B) in helical manner, a cutout (11) created thereon in order for the said comfort cam spring front end (541) to be connected, and comfort cam contact surface (13) and safety cam contact surface (14) created on the said pawl (20).
• the cutout (11) is positioned on the housing cover (16).
• FIG-1 the complete perspective mounted view of the whole parts composing the floor latch mechanism is shown.
• the pawl (20) configured on the adaptation plate (10) is the most and effective hook together with safety cam (40), which provides the connection to the vehicle or locking to the locking pin (60) on the vehicle, and receives the whole force.
• the contact surface shown at the functional area (C) is changed, and the contact is obtained from the inner surface instead of pawl (20) edge contact as seen in the figure.
• the functional area (C) is the working area, wherein the pawl (20) and safety cam (40) are in contact with each other.
• the safety cam (40) serves to receive the force transferred by the pawl (20) and to prevent it from opening during the collision.
• the comfort cam (30) serves to compress the pawl (20) permanently, prevent noise and provide tolerances while the vehicle is on the move.
• the safety cam (40) and comfort cam (30) can be opened by means of a button or any basic system, and locking is obtained by fitting the pawl (20) to the locking correspondent shaft or removing it from the said shaft.
• the angles of the contact surface (13, 14) at the functional area (C) have utmost importance. Opening loads and angles are determined at said area.
• the functional surfaces (C) on the paw! (20) and comfort cam (30) can be created in 3 different manners. It is possible that pawl (20) surface is angular, while the comfort cam (30) surface is agonic; comfort cam (30) surface is angular, while the pawl (20) surface is agonic; or, surfaces of the both hooks are angular at certain levels.

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• Engineering & Computer Science (AREA)
• Aviation & Aerospace Engineering (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Lock And Its Accessories (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=49514011

Family Applications (1)

Country Status (1)

Citations (5)

• 2013
  • 2013-08-06 WO PCT/TR2013/000257 patent/WO2014025327A1/fr not_active Ceased

Patent Citations (5)

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