Modular seat assembly and method of installation thereof
A modular seat assembly, comprising at least two support units at least one backrest unit connected to the at least two support units; and at least one seat bottom unit; wherein the seat bottom unit connects to the at least two support units and to the backrest unit into a locking engagement.
This application claims priority on Canadian application No. CA 2,510,843 filed on Jun. 22, 2005 and Canadian application filed on Mar. 23, 2006 (number not yet assigned). All documents above are herein incorporated by reference.
FIELD OF THE INVENTIONThe present invention relates to seats. More specifically, the present invention is concerned with modular seat assemblies and method of installation thereof.
BACKGROUND OF THE INVENTIONA number of seats models are known, for use in vehicles such as school buses for example, of a variety of sizes (45 inches, 39 inches, 34 inches, 30 inches, 26 inches and 18 inches) and heights (high backrest and low backrest) to accommodate a range of vehicle configuration.
The present description refers to a number of documents, the content of which is herein incorporated by reference in their entirety.
SUMMARY OF THE INVENTIONMore specifically, in accordance with the present invention, there is provided a modular seat assembly, comprising at least two support units; at least one backrest unit connected to the at least two support units; and at least one seat bottom unit; wherein the seat bottom unit connects to the at least two support units and to the backrest unit into a locking engagement.
Other objects, advantages and features of the present invention will become more apparent upon reading of the following non-restrictive description of specific embodiments thereof, given by way of example only with reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGSIn the appended drawings:
The present invention is illustrated in further details by the following non-limiting examples.
As illustrated in
The modular seat assembly may comprise a seat belt beam 60, as will be described further hereinbelow.
The support units 12 comprise at least one of a pedestal unit 12a or 12d illustrated for example in
As shown in
The backrest connecting tube 20a and the front leg 22 may be round tubes or square tubes for example. The seat support part 24a and the connecting slider 26a may be folded pieces or square or round tubes for example.
A wall bracket unit 12b illustrated in
The backrest connection 12c illustrated in
A backrest unit 16 as illustrated in
A backrest cover 40 may be put on the backrest unit 16 over a backrest molded foam supported by the support member 32. The backrest molded foam may comprise a rear molded foam 40a and a front molded foam 40b assembled together by the backrest cover 40.
As best seen in
As illustrated in
As shown in
The locking members 50 and 51 may be integrally formed with the frame 44 or separate members.
The support member 32 of the backrest unit 16 and the support member 46 of the seat bottom unit 14, located between side arms of the frame 30 of the backrest unit 16 and side arms of the frame 44 of the seat bottom unit 14, rigidify the frames 30 and 44 respectively.
The seat belt beam 60 is used for attaching seat belts. Depending on the type of seat belts needed, abdominal seat belts or three points seat belts, the seat belt beam 60 may be a square tube, a round tube or an angle for example, made in plastic, metal or composite for example, so as to achieve a desired resistance, as people in the art will appreciate. The seat belt beam 60 generally engages the connecting sliders 26a, 26b, 26c of the support means 12a, 12b, 12c—as will be described with more details hereinafter.
In the embodiments illustrated in
In the embodiments illustrated in
Moreover, in the embodiments illustrated in
The frame 30 may also be formed of a single tube shaped into the desired shape, extremities thereof playing the role of the connecting anchors 62 and 64. However, using different tubes may be decided in order to have distinct mechanical properties in distinct regions of the frame 30, as people in the art will appreciate, and/or to optimise the weight of the overall frame 30.
As people in the art will appreciate, other configurations for the frame 30 are possible, as known in the art.
In
In
The seat assembly illustrated in
In
In
The seat assembly of
In
The different units of the seat assembly according to the present assembly generally have functional parts. These parts may take the form of distinct members, the corresponding unit resulting from the assembly of each individual member, or from the assembly of any number of these members pre-assembled together or fabricated together as a subunit.
For example, the attaching part 18b and the seat support part 24b of a wall bracket unit 12b may be molded as a one-piece member.
Any of the attaching part 18a, the connecting slider 26a, the front leg 22, the backrest connecting tube 20a and the seat support part 24a of the pedestal unit 12a may be pre-assembled in sub-units so that the pedestal unit 12a be made of 4 or 5 separate sub-units. Alternatively, the pedestal unit 12a may be a one-piece molded unit.
Moreover, the different units of the seat assembly themselves may be pre-assembled. For example, it may contemplated to pre-assemble a pedestal unit and a seat belt beam or a seat belt beam and a wall bracket unit, by welding or by using a bolt for example, or even a pedestal unit, a seat belt beam and a wall bracket unit in the cases of seat assemblies of the type illustrated in
Interestingly, the units of the present invention are standard units, which may be mass fabricated, while allowing a flexibility of a final assembly at a controlled cost. Indeed, basically, the support means are identical for any kind of desired seat assemblies, considering that they include left and right wall brackets units, left, right and symmetric (in the case of a pedestal unit located at an inner position along the width of the seat assembly instead of a pedestal unit located at an extremity as illustrated hereinabove) pedestal units for example. The seat bottom units and the backrest units, as well as the seat belt beams, have also a basically fixed structure, although they may vary in width (of the seat bottom unit and correspondingly of the backrest unit) and length (of the seat belt beam).
In the context of storage and speed of delivery optimization, it may thus be contemplated having a number of standard units fabricated and ready so as to be ready to fabricate specific variations of these other units that may be ordered with different geometrical characteristics (width of the seat bottom unit and correspondingly of the backrest unit, and length of the seat belt beam).
The functional parts of each unit being defined, the modularity of the present invention allows tailoring any specific seat assembly according to target local properties, since each different unit or sub-unit may be made in a different material, including composites, steel, metals, magnesium, plastics etc. . . . depending of a desired strength and resistance and other mechanical properties for example and/or to optimise the weight of the overall assembly, which may be a critical concern in the context of vehicles equipment for example.
People in the art will further appreciate that the modularity of the present invention allows having the units fabricated in different factories, even in different parts of the world, according to different skills required, costs involved etc. . . .
It is to be noted that the connecting sliders 26a, 26b of the support means, may be located above the seat support parts 24a, 24b as illustrated for example in
Methods for installation of a present modular seat assembly will now be described.
Basically, a method according to a second aspect of the present invention comprises positioning at least two support units 12 (step 100); connecting a backrest unit to the at least two support means (step 200); and connecting a seat bottom unit to the backrest unit and the support means (step 300).
In step 100, depending on where the seat assembly is to be installed and on the type of seat assembly desired, as mentioned hereinabove, one of the following may be done, for example:
-
- a wall bracket unit 12b may be attached to a wall and a pedestal unit 12a positioned on the floor at a distance from the wall bracket unit 12b corresponding to the width of the seat assembly;
- a first wall bracket unit 12b may be attached to a first wall and a second wall bracket unit 12b may be attached to an opposite wall;
- two pedestal units 12a may be positioned and separated by a distance corresponding to the width of the seat assembly (two pedestal units located at the extremities);
- a first support units 12 is positioned, a seat belt beam 60 is position in the cavity formed by the connecting slider thereof; and a pedestal units 12a of the type located at an inner position along the width of the seat assembly is slid over the seat belt beam 60 through the cavity formed by the connecting slider thereof;
- etc. . . .
A wall bracket unit 12b may be fastened to a sidewall of the vehicle (not shown) by a nut and bolt system through the attaching part 18b using pre-drilled holes in the wall, for example. In the case when a seat belt beam 60 is not pre-assembled with the wall bracket unit 12b, an extremity of a seat belt beam 60 is inserted into the cavity formed by the connecting slider 26b of the wall bracket unit 12b, and secured thereto by a spring clip or a bolt for example. At this point, a pedestal unit 12a may be already installed in the case when the seat belt beam 60 is also pre-assembled with pedestal unit 12a. Then the pedestal unit 12a only needs to be secured to the floor of the vehicle, using holes drilled in the floor of the vehicle by using the pedestal unit 12a as a template and fastening the pedestal unit 12a using nuts and bolts to the floor through the attaching part 18a thereof for example.
Otherwise, in the case when the pedestal unit 12a is not-pre-assembled with a seat belt beam 60, the pedestal unit 12a may be slid over the seat belt beam 60 through connecting slider 26b and secured thereto by one a spring clip or a bolt for example.
In step 200, the connecting anchors 62 and 64 of the backrest unit 16 are inserted into the backrest connecting tubes 20a, 20b of two support units 12 separated by a distance corresponding to a width of the backrest unit (see
In step 300, a seat bottom unit 14 is then assembled and the overall assembly locked into a rigid assembly by the locking members 50 and 51.
The locking mechanism may take a number of forms, and may need intervention from the back of the assembly (see for example embodiment illustrated in
In
As best seen in
Alternatively, in
As shown in
Still alternatively, as shown in
In
In
Still alternatively, as shown in
In
In embodiments where the connecting sliders 26a, 26b of the support means are located bellow the seat support parts 24a, 24b, such as in
Claims
1. A modular seat assembly, comprising:
- at least two support units;
- at least one backrest unit connected to said at least two support units; and
- at least one seat bottom unit;
- wherein said seat bottom unit connects to the support units and to the backrest unit into a locking engagement.
2. The modular seat assembly of claim 1, further comprising a seat belt beam.
3. The modular seat assembly of claim 1, wherein said support units comprise at least one of a pedestal unit, a wall bracket unit and a backrest connection.
4. The modular seat assembly of claim 1, wherein said support units comprise at least a connecting slider and a seat support part.
5. The modular seat assembly of claim 4, wherein said support units further comprise a backrest connecting tube.
6. The modular seat assembly of claim 1, wherein said backrest unit comprises a frame provided with connecting anchors.
7. The modular seat assembly of claim 6, wherein said backrest unit comprises a removable backrest cover securing a backrest molded foam.
8. The modular seat assembly of claim 1, wherein said seat bottom unit comprises a frame provided with locking members.
9. The modular seat assembly of claim 8, wherein said seat bottom unit comprises a molded foam secured to the seat frame by a seat cushion cover.
10. The modular seat assembly of claim 1, wherein said backrest unit and said seat bottom unit comprise a support member located between side arms of thereof.
11. The modular seat assembly of claim 2, wherein said seat belt beam is one of: i) a square tube, ii) a round tube, ii) an angle, iv) an elongated member, extending across a width of said seat bottom unit and said backrest set unit.
12. The modular seat assembly of claim 4, wherein said support units comprise an attaching part to one of: i) a floor surface and ii) a wall surface.
13. The modular seat assembly of claim 1, wherein each one of said units is one of: i) an assembly of subunits and ii) a one-piece unit.
14. The modular seat assembly of claim 1, wherein at least two of said units are pre-assembled together.
15. The modular seat assembly of claim 2, wherein said seat belt beam is pre-assembled with at least one of said units.
16. The modular seat assembly of claim 1, wherein each one of said units is made in at least of: i) composites, ii) steel, iii) metals, iv) magnesium and v) plastics.
17. A method for installing a modular seat, comprising the steps of:
- positioning at least two support units;
- connecting a backrest unit to the at least two support units;
- engaging a seat bottom unit in locking engagement with the at least two support units and the backrest unit.
18. The method of claim 17, said step of positioning at least two support units comprising positioning at least two support units selected in the group consisting of pedestal units, wall bracket units and backrest connections.
19. The method of claim 17, further comprising positioning a seat belt beam supported by said at least two support units, said step of engaging a seat bottom unit comprising engaging the seat bottom unit in locking engagement with the at least two support units, the backrest unit and the seat belt beam.
20. The method of claim 17, said step of connecting the backrest unit to the at least two support units comprising inserting connecting anchors of the backrest unit into backrest connecting tubes of each support units.
21. The method of claim 17, said step of engaging the seat bottom unit in locking engagement with the at least two support units and the backrest unit comprising driving a first bolt through a perforation in a backrest connecting tube of a first one of the support units and through a corresponding perforation in a first connecting anchor of the backrest unit inserted in the backrest connecting tube of the first one of the support units, and into a first locking member of the seat bottom unit; and driving a second bolt through a perforation in a backrest connecting tube of a second one of the support units and through a corresponding perforation in a second connecting anchor of the backrest unit inserted in the backrest connecting tube of a second one of the support units, and into a second locking member of the seat bottom unit.
22. The method of claim 17, the seat bottom unit having locking members with a spring fastened to an end thereof, said step engaging the seat bottom unit in locking engagement with the at least two support units and the backrest unit comprising inserting the locking members of the seat bottom unit into an aperture of connecting sliders of the supports units and through a perforation provided in backrest connecting tubes of the support units and a corresponding perforation provided in connecting anchors of the backrest unit located in the backrest connecting tubes of the support units respectively; whereby a force directed to a back of the seat assembly pushes backwards the seat bottom unit hard enough to compress the springs against an rear inside wall of the backrest connecting tubes so as to engage a hooks provided under the seat bottom unit.
23. The method of claim 17, said step engaging the seat bottom unit in locking engagement with the at least two support units and the backrest unit comprising inserting locking members of the seat bottom unit into an aperture of connecting sliders of the supports units and through a perforation provided in backrest connecting tubes of the support units and a corresponding perforation provided in connecting anchors of the backrest unit located in the backrest connecting tubes of the support units; whereby a tightening action of screws between angles and the seat bottom unit pushes ends of the locking member of the seat bottom unit towards a rear inside wall of the connecting anchors of the backrest unit, thereby squeezing the connecting anchors of the backrest unit between the seat bottom unit and the backrest connecting tubes of the support units.
24. The method of claim 17, the seat bottom unit having locking members with a “v”-shaped end, a rod being located across connecting anchors of the backrest unit, said step engaging the seat bottom unit in locking engagement with the at least two support units and the backrest unit comprising inserting the locking members of the seat bottom unit into an aperture of connecting sliders of the support units and through a perforation provided in backrest connecting tubes of the support units and a corresponding perforation provided in the connecting anchors of the backrest unit inserted in the backrest connecting tubes of the support units respectively; whereby the “v”-shaped ends of the locking members engages the rod; a tightening action between angles and the seat bottom unit pushing the connecting anchors of the backrest unit against a rear inside wall of the backrest connecting tubes of the support units.
25. The method of claim 17, the seat bottom unit having locking members with a hook-shape end, a rod being located across connecting anchors of the backrest unit, said step engaging the seat bottom unit in locking engagement with the at least two support units and the backrest unit comprising i) inserting the locking members through corresponding slots provided in a front wall of backrest connecting tubes of the support units and in a front wall of connecting anchors of the backrest unit, whereby the hook of the hook-shape end of the locking members engages the rod; ii) revolving the seat bottom unit around the rod down to a final horizontal position thereof, whereby a surface of the locking members comes in abutment with a rear inside wall of the connecting anchors of the backrest unit.
26. The method of claim 25, further comprising fastening a front part of the seat bottom unit using one of a screw, a bolt, a latch, a captive screw, a quarter-turn fastener, a hook, and a spring clip.
27. The method of claim 25, wherein the surface of the locking members that comes in abutment with the rear inside wall of the connecting anchors of the backrest unit is provided with teeth, whereby, when the seat bottom unit revolves around the rod down to its final horizontal position, the teeth grip onto the rear inside wall of the connecting anchors of the backrest unit.
28. The method of claim 17, the seat bottom unit having locking members with a hook-shape end, said step engaging the seat bottom unit in locking engagement with the at least two support units and the backrest unit comprising i) inserting the locking members at an angle through corresponding slots provided in a front wall of backrest connecting tubes of the support units and in a front wall of connecting anchors of the backrest unit; ii) bringing the seat bottom unit down to a final horizontal position thereof, whereby a tip of the locking members contacts an inner surface of the front wall of the connecting anchors of the backrest unit.
29. The method of claim 28, further comprising fastening a front part of the seat bottom unit by using one of a screw, a bolt, a latch, a captive screw, a quarter-turn fastener, a hook, and a spring clip, thereby generating a pressure at a contact surface between the tip of the locking members and the inner surface of the front wall of the connecting anchors of the backrest unit and forcing the connecting anchors of the backrest unit against the backrest connecting tubes of the support units, holding the hook shape of the locking members against the front wall of the connecting anchors of the backrest unit against vibration.
30. The method of claim 17, the seat bottom unit having locking members, ends of the locking members having a teeth shape, said step engaging the seat bottom unit in locking engagement with the at least two support units and the backrest unit comprising inserting the locking members of the seat bottom unit into an aperture of connecting sliders of the supports units and through a perforation provided in backrest connecting tubes of the support units and a corresponding perforation provided in connecting anchors of the backrest unit located in the backrest connecting tubes of the support units; whereby lateral teeth of the ends of the locking members engage apertures provided in a rear inside wall of the connecting anchors of the backrest unit and corresponding apertures provided in a rear inside wall of the backrest connecting tube of the support means, a tightening action of a screw between angles and the seat bottom unit pushes the lateral teeth inside these apertures while a bridging part therebetween is blocked by a surface of the rear inside wall of the connecting anchors of the backrest unit.
31. The method of claim 17, comprising providing a backrest unit comprising a frame made of a first tube inserted into second tubes, the first and second tubes being of different diameters and thicknesses, the first tube forming a shape of the backrest unit, the tubes, at a beginning of an impact, slide one against the other.
Type: Application
Filed: Mar 30, 2006
Publication Date: Dec 28, 2006
Applicant: Multina Inc. (Drummondville)
Inventors: Luc Belair (Drummondville), Pierre Cossette (Drummondville), Richard Jobidon (Wickham), Alain Ampleman (Drummondville), Sylvain Pinard (Sherbrooke), Richard Valois (Drummondville)
Application Number: 11/393,441
International Classification: A47C 15/00 (20060101);