WO2016185109A1

WO2016185109A1 - Saddle having a longitudinally and vertically adjustable backrest for narrow motor vehicle

Info

Publication number: WO2016185109A1
Application number: PCT/FR2016/051037
Authority: WO
Inventors: Xavier Abreu; Stephan Galidie
Original assignee: Peugeot Citroen Automobiles Sa
Priority date: 2015-05-21
Filing date: 2016-05-03
Publication date: 2016-11-24
Also published as: CN107635865A; FR3036365B1; EP3297899A1; FR3036365A1

Abstract

The present invention relates to a saddle for a narrow motor vehicle, having a seat part (10) and a backrest (20) that are intended to hold the driver of said vehicle, said backrest (20) having a support cushion (21) mounted on at least one stem (22) and being longitudinally and vertically adjustable; characterized in that it has a mounting plate (12) that is housed in said seat part (10) and extends in an inclined plane oriented forwards and downwards, said mounting plate (12) also comprising several notching means that are distributed along its length and are intended to engage with a complementary retaining member (25) fastened to the lower end of the at least one stem (22).

Description

LONGITUDINAL ADJUSTABLE FOLDING BACK SADDLE AT HEIGHT FOR MOTORIZED MOTORIZED VEHICLE.

Field of the invention

The present invention relates generally to the field of narrow motorized vehicles with two, three or four wheels, and in particular a saddle with longitudinally adjustable backrest and height for such a vehicle. Background of the invention

Such a saddle comprises a front seat for receiving the driver and possibly a second place in tandem for a passenger.

In order to improve the driver's comfort and to reduce his level of fatigue during long journeys, it is known to provide a backrest for the driver's back.

The application US 4,466,660 thus discloses a saddle comprising a seat and a backrest comprising a support cushion mounted on two telescopic metal rods parallel to each other and each formed by an upper hollow tube in which a lower hollow tube is slidably mounted.

A knurled clamping ring locks the lengthening of the rods in the desired position so that the driver can adjust the height of the backrest for better comfort.

The saddle also comprises support means formed by two parallel bars extending on either side of the seat and along the latter. Each of its support bars comprises a plurality of vertical tubular guide bushes distributed along the two support bars, so as to form a series of pairs of guide bushes opposite to the seat and intended to receive the two stems of the backrest. .

These different pairs of bushings thus allow the driver to adjust the longitudinal position of the backrest among a plurality of predefined positions distributed along the seat. Once introduced into a pair of bushings, the rods are locked downwards by means of abutments protruding radially from these rods and cooperating with the upper end of the sleeves. Spring loaded buttons protruding transversely rods cooperate with the lower end of the sleeves to prevent removal of these rods backrest.

To change the longitudinal position of the backrest, the driver must manually retract these spring buttons to remove the two rods of this folder and then introduce them into another pair of socket.

In use, the longitudinal adjustment and height of the record is thus particularly long and tedious.

In addition, the fact that the adjustment means are apparent negatively influences the visual rendering of the saddle but also the level of quality perceived by the user.

Object and summary of the invention

The present invention therefore aims to provide a saddle for narrow motor vehicle at least partially overcomes the aforementioned drawbacks.

It proposes for this purpose a seat for narrow motorized vehicle comprising a seat and a backrest for receiving the driver of said vehicle, said backrest comprising a support cushion mounted on at least one rod and being adjustable longitudinally and height;

characterized in that it comprises a plate housed in said seat and extending in an inclined plane oriented towards the front and towards the bottom, said plate further comprising several means of notching distributed along its length and intended to cooperate with a complementary retaining member attached to the lower end of the at least said rod.

Thanks to the inclined nature of the plate, the seat according to the invention allows the driver to simultaneously adjust the longitudinal position and height of the backrest by a simple change of the detent means cooperating with the retaining member. In addition, the fact that this plate is concealed inside the main seat does not negatively impact the visual rendering of the saddle which retains a similar appearance to the classic saddles.

According to preferred features of said saddle:

the inclination percentage of said platen is between 75 and 85% and preferably equal to 80%;

said plate comprises a flat wall bordered laterally by two upwardly facing returns and said notching means consist of a plurality of notches distributed along said returns of said plate so as to form a series of pairs of said notches facing the one of the other;

said retaining member comprises a first transverse bar intended to be introduced into the different pairs of said notches;

said first transverse bar is of cylindrical shape so as to allow said folder to pivot around said latter;

said retaining member comprises a second transverse bar parallel to said first bar and intended to cooperate in abutment with the lower face of said flat wall of the plate so as to prevent the rearward pivoting of said file beyond the vertical ;

the two said bars are rigidly connected to one another by means of two connecting brackets passing through two parallel longitudinal slots formed along the said flat wall of the plate;

the spacing between the two said bars is greater than the height of said platen;

said second transverse bar and / or the lower face of said flat wall of the plate are coated with a layer of a sound insulator; and or

- Said seat also comprises a secondary seat for a rear passenger with a frame covered with a lining, said secondary seat further comprising at least one guide sleeve mounted to freely rotate on said frame along a transverse axis in a recess formed in the front portion of said lining and being traversed by the at least said stem of said backrest.

Brief description of the drawings

The description of the invention will now be continued by the detailed description of an exemplary embodiment, given below by way of illustration but without limitation, with reference to the appended drawings, in which:

- Figure 1 is a side view of a saddle for narrow motor vehicle according to the invention, on which the backrest is shown in a completely folded position against the main seat;

FIG. 2 represents a view similar to FIG. 1 but on which the backrest occupies its highest and most rearward raised position;

FIG. 3 represents a view similar to FIGS. 1 and 2, but on which the backrest occupies its lowest and most advanced raised position; and

- Figure 4 is an exploded perspective view of the mechanism for adjusting the position of the folder.

Detailed description of a preferred embodiment

Figures 1 to 3 show a saddle 1 of a narrow motorized vehicle with two, three or four wheels having a main seat 10 and a backrest 20 for receiving the driver, and a secondary seat 30 for a rear passenger.

In the following and by convention, the terms "before", "back", "up", "down", "longitudinal" and "transverse" will be defined with respect to the mounting position of this saddle 1 on such motorized vehicle.

The main seat 10 has a frame (not shown to facilitate the reading of the drawings) attached to the chassis of the vehicle and covered by a lining 11 formed of a foam padding coated with an envelope.

This seat 10 also comprises a rectangular metal plate 12 fixed to its framework and visible through the transparency 11 through the gasket in Figures 1 to 3.

This plate 12 extends from a raised rear portion 10A of this seat 10 along an inclined plane oriented forward and downward.

The plate 12, better visible in Figure 4, is formed by a rectangular flat wall 13 having two parallel longitudinal slots 14, 15 extending over most of its length, and two returns 16, 17 laterally bordering the wall 13 and facing up.

Each of these two lateral returns is provided with a plurality of rounded notches 18, 19 distributed at regular intervals along the plate 12, so as to form a series of pairs of notches 18, 19 facing one of the other.

The backrest 20 comprises a support cushion 21 mounted on two parallel rods 22, 23 inserted partially inside this cushion 21 and each formed by a hollow metal tube.

The two beveled lower ends of the cross rods partially traverse the liner 11 at two parallel longitudinal recesses formed in the rear part of the saddle 1 (not visible in the figures), and are fixed by welding on a first transverse cylindrical bar 26 of a metal retainer 25 connected to and cooperating with the plate 12 (FIG. 4):

In addition to this first crossbar 26 which is intended to be introduced into the different pairs of notches 18, 19, the retaining member 25 also comprises a second transverse bar 27 parallel, of the same length as the bar 26, and intended to cooperate in abutment with the underside 13B of the wall 13 to prevent the rearward pivoting of the backrest 20 beyond the vertical. The two bars 26, 27 are rigidly connected to each other by means of two flat L-shaped connecting brackets 28, 29 passing through the two slots 14, 15 of the plate 12.

More specifically, each connecting bracket 28, 29 comprises a first branch 28A, 28B whose free end protruding from the upper face 13A of the wall 13 of the plate 12 is traversed by the first transverse bar 26 to which it is welded.

Each connecting bracket 28, 29 also comprises a second branch 28B, 29B of greater length, the free end projecting from the lower face 13B of this wall 13 is traversed by the second transverse bar 27 to which it is welded.

Note further that the spacing between these two bars must be greater than the height of the plate 12 so as to allow the driver to extract the bar 26 of the pair of notches 18, 19 in which it is introduced.

The secondary seat 30 is intended to provide better reception conditions to the rear passenger by avoiding sitting directly on top of the rear portion of the main seat 10 whose proximity to the plate 12 would be source of discomfort.

This comprises a frame (not shown to facilitate reading of the drawings) covered by a lining 31 formed of a foam padding coated with an envelope.

The secondary seat 30 also comprises two parallel tubular guide bushes 32, 33 housed in two parallel recesses 34, 35 formed in front of the lining 31.

The cylindrical walls of the two bushes 32, 33 are interconnected by a transverse rod 36 mounted to rotate freely on its framework.

These two tubular bushes 32, 33 are slidably mounted along the portion of the rods 22, 23 of the backrest 20 situated between its support cushion 21 and the retaining member 25.

The secondary seat 30 is thus able to slide along these rods 22, 23 as well as to pivot about the transverse axis formed by the rod 36 during the forward folding of the backrest 20 (the recesses 34, 35 being shaped so as to allow the two rods 22, 23 to pass through the lower front portion of this secondary seat 30).

We will now describe, in support of Figures 1 to 3, the adjustment operations of the back 20 of the saddle 1 according to the invention.

In Figures 1 and 2, the cylindrical bar 26 of the retaining member 25 is inserted into the first pair of notches 18, 18 located near the upper end of the plate 12 in the raised rear portion 10A of the main seating 10.

In this configuration, the back 20 is able to pivot about the transverse axis formed by this bar 26 between a completely folded position against the non-raised portion 10B of the main seat 10 in the extension of the secondary seat 30 (FIG. 1), and a first raised position substantially vertical (Figure 2).

This folded position of the backrest 20 makes it easier to access the secondary seat 30 for the rear passenger when the motorized vehicle comprises a bodywork enveloping the passenger compartment and provided only with front access doors.

In such a case, this passenger must step over the backrest 20 and then slide his rear rearward along this folder until reaching the secondary seat 30.

The driver can then bring the backrest 20 into the first raised position of FIG. 2 by pivoting it backwards until the second bar 27 of the retaining member 25 abuts against the lower face 13B of the wall 13 of the plate 12.

During this movement, the secondary seat 30 will naturally slide by gravity backwards along the rods 22, 23 while pivoting around the rod 36 so as to keep a horizontal profile.

If the driver considers that the position of the backrest 20 is too far back from its morphology, the latter can modify it by opting for one of the other predefined positions corresponding to the different pairs of notches 18, 19 distributed along the plate 12 .

To do this, the driver must first lift the backrest 20 and pivoting it slightly forward so as to extract the bar 26 of the first pair of notches 18, 19. The back 20 can then be brought to the desired longitudinal position by sliding the second bar 27 along the lower face of the wall 13 of the plate 12, before being released so that the bar 26 comes caught in one of the pairs of notches 18, 19 and locks its position.

Due to the inclination of the plate 12, the forward movement of the backrest 20 simultaneously causes its lowering and vice versa, which avoids the driver having to perform later this setting itself.

In configuration sitting on the saddle with the feet positioned at the pedals, it has been found that the vertical variation of the position of the neck of the driver, between individuals of different sizes, is substantially proportional to the horizontal variation of the position of the basin.

Thus, by opting for a proper inclination percentage for the plate 12, it is possible to automatically obtain a quasi-optimum adjustment of the height of the backrest 20.

In practice and in accordance with the studies carried out, this percentage of inclination will advantageously be between 75 and 85% and preferably equal to 80%.

FIG. 3 illustrates the most advanced and low raised position of the backrest 20 on which it can be seen that the lower end of its support cushion 21 is flush with the front part of the lining 31 of the secondary seat 30.

According to alternative embodiments not shown, certain components of the longitudinal adjustment mechanism and the height of the backrest 20 are shaped differently.

This is particularly the case of the plate 12 which can be made of a composite material optionally filled with glass fibers or carbon to reduce its mass.

It can also be provided for example that the retaining member is formed in one piece from a metal material, for example by molding. According to other embodiments not shown, the saddle comprises means for preventing undesired forward tilting of the backrest 20, in case of sudden deceleration of the motorized vehicle. These means may take the form of a repositionable fastener and easily manipulated such as a self-gripping coating covering the underside of the secondary seat or even a magnet.

According to still other embodiments not shown;

- The saddle comprises means operable by a control lever and able to cause the lifting of the cylindrical bar

26 (and thus its withdrawal from the pair of notches 18, 19 in which it was inserted) in order to facilitate the adjustment of the position of the backrest;

- The second transverse bar 27 and / or the lower face of the wall 13 of the plate 12 are coated with a layer of a sound insulator to reduce the noise that may appear when these two elements come into contact; and or

the support cushion of the backrest is mounted on a single metal rod inserted partially inside this cushion, the secondary seat 30 then comprising a single guide sleeve mounted to free rotation on its framework and traversed by this rod.

Of course, the present invention is not limited to the embodiments described and shown, but encompasses any other variant within the scope of the art.

Claims

1. Saddle for narrow motorized vehicle having a seat

(10) and a backrest (20) for receiving the driver of said vehicle, said backrest (20) having a backing pad (21) mounted on at least one rod (22, 23) and being adjustable longitudinally and vertically;

characterized in that it comprises a plate (12) housed in said seat (10) and extending along an inclined plane oriented towards the front and towards the bottom, said plate (12) further comprising several means of notching ( 18, 19) distributed over its length and intended to cooperate with a complementary retaining member (25) attached to the lower end of the at least said rod (22, 23).

2. Saddle according to claim 1, characterized in that the inclination percentage of said plate (12) is between 75 and 85% and preferably equal to 80%.

3. Seat according to one of claims 1 or 2, characterized in that said plate (12) comprises a flat wall (13) bordered laterally by two returns (16, 17) oriented upwards, and in that said means notches are constituted by a plurality of notches (18, 19) distributed along said returns (16, 17) of said plate (12) so as to form a series of pairs of said notches (18, 19) facing the one of the other.

4. Saddle according to claim 3, characterized in that said retaining member (25) comprises a first transverse bar (26) intended to be introduced into the different pairs of said notches (18, 19).

5. Saddle according to claim 4, characterized in that said first transverse bar (26) is of cylindrical shape so as to allow the pivoting of said backrest (20) around the latter.

6. Seat according to claim 5, characterized in that said retaining member (25) comprises a second transverse bar (27) parallel to said first bar (26) and intended to cooperate in abutment with the lower face (13B) of said flat wall (13) of the plate (12) to prevent the rearward pivoting of said backrest (20) beyond the vertical.

7. Seat according to claim 6, characterized in that the said two bars (26, 27) are rigidly connected to one another by means of two connecting brackets (28, 29) passing through two parallel longitudinal slots (14, 15) formed along said flat wall (13) of the plate (12).

8. Saddle according to one of claims 6 or 7, characterized in that the spacing between the two said bars (26, 27) is greater than the height of said plate (12).

9. Saddle according to one of claims 6 to 8, characterized in that said second transverse bar (27) and / or the lower face (13B) of said flat wall (13) of the plate (12) are coated with a layer of sound insulation.

10. Seat according to one of claims 1 to 9, characterized in that it also comprises a secondary seat (30) for a rear passenger with a frame covered with a lining (31), said secondary seat (30). ) further comprising at least one guide sleeve (32, 33) mounted for free rotation on said framework along a transverse axis (36) in a recess (34, 35) formed in front of said lining (31) and being traversed by the at least said rod (22, 23) of said folder (20).