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
  • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
  • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
  • B60N2/4207—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces
  • B60N2/4235—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces transversal
• • 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
  • B60N2/80—Head-rests
  • B60N2/885—Head-rests provided with side-rests

Definitions

• the present invention refers to the technical field relative to the accessories for transport vehicles in general, in particular automobiles.
• the invention refers to an innovative headrest with functions both of rest collar and safety collar in case of impact.
• the US document US3722951 describes a reclining collar which can be lowered in such a way as to surround entirely the neck of the user and ensure the driver's safety in case of impact. It is anyway clear that this solution is particularly directed to safety against impacts but adapts badly to the comfort of the passenger that wants to rest. Such a solution does not integrate at all to the ergonomic shape of the headrest and limits the freedom of the user, in case it is a passenger, to assume a comfortable rest position.
• the aim of the present invention to provide a headrest that maintains, in case of impact, the neck still in position and that, at the same time, results comfortable in case the user falls asleep, structurally simple and that lends a certain mobility though maintaining a good degree of safety.
• the headrest (1) comprises a central part (2) that assembles, on each one of its two sides, an arm (4) provided with an end (10) .
• the two arms (4) are assembled in a rotatable manner with respect to the central part (2) between, a lifted position, wherein they result rotated close to the central body (2), and a lowered position, wherein they are rotated in such a way as to be protruding externally from the central part (2) to be able to be placed on the shoulders of a user seated on the seat and vice-versa.
• said ends (10), rotatable with respect to the arm (4), are then further included.
• the headrest includes rotation means (3, 5, 6, 7, 8, 9, 10') configured to cause a contextual rotation of the ends (10) in correspondence of a rotation of the arms (4) in such a way that, during a rotation towards the lowered position of the arm (4), each end (10) rotates contextually with respect to the arm (4) towards a block position for realizing a security constraint against the body of the user.
• rotation means (3, 5, 6, 7, 8, 9, 10') configured to cause a contextual rotation of the ends (10) in correspondence of a rotation of the arms (4) in such a way that, during a rotation towards the lowered position of the arm (4), each end (10) rotates contextually with respect to the arm (4) towards a block position for realizing a security constraint against the body of the user.
• FIG. 1 shows a lateral section of the present headrest in accordance with the invention
• FIG. 3 shows in view the block/unblock system of the arms 4 ;
• FIG. 1 and figure 2 describe a headrest 1 in accordance with the invention.
• the headrest includes a central part 2 on which the user, according to normal use, can rest his head as per the background art.
• the headrest includes, as shown in the section of figure 1 and in the top section of figure 2, a U-shaped collar-like rotatable element comprising a central rotation axis 3 integral to the two lateral arms 4.
• the central axis 3 therefore results inserted in a rotatable manner into a passing seat 10, for example of circular shape, found in the central part 2 of the headrest .
• the lateral arms 4 are engaged in a fixed manner to the rotation axis 3 in such a way that they rotate integrally to the axis itself. In this way, by acting manually on the arms 4 to lift or lower them, the axis 3 is brought contextually in rotation.
• the axis 3, as shown in figure 2, is a transversal axis .
• central axis 3 is rendered integral to the arms 4 through a keying 25 and externally through fixing screws 20.
• the arms 4 are hollow inside in such a way as to realize the internal space necessary for lodging the kinematism described right below.
• the central axis 3 brings fit to its ends two dented wheels 5 which are in fact lodged inside the arm 4, each one into the terminal parte of an arm 4 itself.
• the dented wheel 5 engages with a planet wheel 6, always arranged into the arm 4, which brings fit to it on one side a dented gear 7 (visible also in figure 1) .
• the dented gear 7 (similarly to that of the gears of a bicycle) serves for the passage of. a chain 8 that transmits its motion to a second dented gear 9.
• the arm 4 (see for example figure 1) includes an end 10 which, through the axis 10' , is assembled in a rotatable manner with respect to the remaining part of the arm 4.
• the shaft 10' (of axis 10') brings fit to it a second . dented gear 9 in such a way that the rotation of such a gear 9 causes the rotation of the end 10 with respect to the remaining fixed part 4.
• the axis of rotation 10' is transversal as well, that is parallel to the axis 3.
• the rotation of the first gear 7 transmits a rotation to the second gear 9 through the transmission chain 8, therefore causing the consequent rotation of the end 10 with respect to the arm 4.
• Figure 1 better represents block means (30, 31, 32, 33, 34, 35) that serve to engage in two extreme positions the arms 4 (figure 1 shows for descriptive clarity- purposes with a dotted line a lifted position and an intermediate position, while with a continuous line the lowered engaged position on the user) .
• the block system includes an actuating pin 30 inserted into a vertical seat found in the central part 2 (see top section of figure 2).
• the seat serves as lodging for a return spring 31 that brings in a lifted position the pin once it is released.
• the pin 31 acts on a leverage comprising a tooth 32 hinged to a fixed support 33.
• the disc presents two block shoulders 38 and 39 that serve as stops for the two extreme rotation positions of the arms 4, that is the position of the arms all lifted and the position all lowered.
• the shoulders are in fact in contrast with an L-shaped fixed block 35.
• Figure 4 shows an initial condition in which the arms 4 of the headrest are all lifted upwards.
• the arms 4 and the appendix 10 are inserted in a rollaway manner into a complementary seat cut-out on the central part 2.
• the headrest assumes the traditional shape of an ordinary headrest commonly assembled on a motor vehicle, for example an automobile.
• the appendix 10 is arranged in such a way as to form a right angle with respect to the arm 4, forming a substantially L-shaped element.
• Subsequent figure 6 (equivalent to figure 1) shows the subsequent lowering phases until the arms 4 reach an extreme block position in which they are close to the shoulders of the user and the appendixes 10 arranged in an orthogonal manner so as to form a securing L that engages against the moving apart of the seat of the user.
• figure 6 shows, just as a way of example and therefore not limiting, three subsequent positions, that is the lifted position 1, an intermediate position with a dotted line 2 and the block position 3.
• the rotation system described above causes the contextual and progressive rotation of the appendix 10 with respect to the arm on which it is assembled, therefore passing from an L embodiment, in which it goes in a rollaway manner into the central body 2 of the headrest, and a further L position rotated of 270° with respect to the preceding one and in which the appendix goes in contrast against the body of the user.
• the function kinematism is therefore the following one.
• each arm 4 rotates progressively and proportionally to the rotation of the arms 4 in such a way as to be brought from the rollaway position 1 to the position indicated with the number 3_.
• the chain 8 can be constituted of an equivalent dented belt 8.
• the dented gears (7, 9) are substituted by equivalent dented wheels on which the teeth of the belt engage.
• the chain 8 can be substituted by an ordinary transmission belt that acts in such a case by dragging on two normal pulleys.

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

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Family Applications (1)

Country Status (3)

Cited By (1)

Citations (6)

• 2011
  • 2011-06-10 IT IT000064A patent/ITPI20110064A1/it unknown
• 2012
  • 2012-04-18 WO PCT/IB2012/051944 patent/WO2012168804A1/en active Application Filing
  • 2012-04-18 EP EP12724714.6A patent/EP2718145A1/en not_active Withdrawn

Patent Citations (6)

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