DK3267841T3 - SEAT CHASSIS comprising an extendable and retractable footrest - Google Patents

SEAT CHASSIS comprising an extendable and retractable footrest Download PDF

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Publication number
DK3267841T3
DK3267841T3 DK16727960.3T DK16727960T DK3267841T3 DK 3267841 T3 DK3267841 T3 DK 3267841T3 DK 16727960 T DK16727960 T DK 16727960T DK 3267841 T3 DK3267841 T3 DK 3267841T3
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DK
Denmark
Prior art keywords
seat
movement
translation
leg
footrest
Prior art date
Application number
DK16727960.3T
Other languages
Danish (da)
Inventor
Michael Mackert
Original Assignee
Innotec Motion GmbH
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 Innotec Motion GmbH filed Critical Innotec Motion GmbH
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Publication of DK3267841T3 publication Critical patent/DK3267841T3/en

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
    • A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type

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  • Passenger Equipment (AREA)
  • Combinations Of Kitchen Furniture (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Description

Seat furniture chassis comprising an extendable and retractable foot rest
The present invention concerns a seat furniture chassis according to the preamble of the first claim.
As seat furniture chassis are described constructions which form the framework of a seat furniture. On the seat furniture chassis are mounted upholstery and covers.
From DE 10 2009 051 576 Al is known a seat furniture chassis which has an extendable and out-pivotable foot rest. In known seat furniture chassis, conversion means are used which convert the angular momentum of a drive means into an extension movement and pivoting-out movement of the foot rest. In addition, seat furniture chassis frequently have a suspension for a seat surface support frame. As a seat surface support frame, a cushion serving as a seat surface can be mounted. The conversion means and the suspension are normally arranged in regions lying near to one another. This arrangement precludes a reduction in the size of the installation space for the retraction mechanism and extension mechanism of the foot rest. If only comparatively little installation space is to be used so that the retraction mechanism and extension mechanism can be seen only slightly or not at all in retracted state, the arrangement of the suspension precludes this goal. US 3 794 381 A a seat furniture chassis having an extendable and out-pivotable foot rest. The seat furniture chassis comprises motor-driven carriages which protrude at the front out of the seat furniture and are designed to pivot-out and extend the foot rest. DE 10 2012 105 127 Al discloses a seat furniture chassis according to the preamble of claim 1.
The task based the invention to create a seat furniture chassis in which less installation space is required for the retraction mechanism and extension mechanism of the foot rest. In addition, a seat furniture having a seat furniture chassis of this sort is to be created.
This task is solved by a seat furniture chassis according to claim 1 and by a seat furniture according to claim 14. Embodiments of the invention are given in the dependent claims.
The seat furniture chassis comprises a retractable and extendable leg and/or foot rest, a seat surface support frame, a drive means and conversion means which are configured to convert an angular momentum generated by the drive means into an extension movement and/or retraction movement of the foot rest. The seat surface support frame here frames a seat surface area. On the seat surface support frame, therefore, a cushion can be arranged which has a seat surface.
According to the invention it is provided that the conversion means comprise a shaft driveable by the drive means. This shaft is arranged parallel to a rear frame part of the seat surface support frame. By the rear frame part is here understood the part of the seat surface support frame which faces a back rest. By means of this arrangement of the shaft as component of the conversion means it is achieved that the conversion means, in the case of relatively small installation space in vertical direction do not collide with the suspension of the seat surface.
The conversion means comprise at least two gears and a first translation means. Both the two gears and the first translation means can be arranged in a first lateral edge region of the seat surface region. The lateral edge region denotes the region which is nearer to the lateral edge of the seat surface region than to the middle of the seat surface region. The seat surface region is in this regard framed by the seat surface support frame. The gears and the first translation means can be displaced downwards in particular in relation to the seat surface support frame. This arrangement is in the context of this description understood in the same way as in the lateral edge region of the seat surface region. Downwards is in this regard the direction which in the proper use of the seat furniture chassis faces a standing surface of the seat furniture.
The two gears engage in one another and a first gear of the two gears can be driven by the shaft. The second gear is designed for the drive of the first translation means. When, therefore, the drive means is activated, the shaft is set in rotation. This movement is transferred onto the first gear which sets the second gear in the same way in rotation and thus drives the first translation means.
Through the use of the two gears, the rotational movement of the shaft can be converted in a vertical direction. The second gear can in the use position of the seat furniture chassis be arranged above the shaft and the second gear. This enables that the shaft can be arranged low down such that a suspension of the seat surface is located above the shaft such that the shaft does not collide with the suspension.
By a translation means is here understood in particular a means which is designed to convert a rotational movement into a translational movement. This can in some circumstances take place in cooperation with a second translation means. The first translation means is formed as a V-belt, chain, toothed belt or threaded rod. In this case, the first translation means can be arranged parallel to a lateral frame part of the seat surface support frame. In this regard, the lateral frame part can adjoin the rear frame part and extend substantially perpendicularly to the rear frame part.
According to an embodiment of the invention, the conversion means can comprise a second translation means which is connected with the first translation means and is moved translationally at a driving of the shaft by the drive means. This can for example take place in that the second translation means is fastened on the V-belt, on the chain or on the toothed belt. In the case that the first translation means is in the form of a threaded rod, the second translation means can in the same way have a threading such that, in the case of a rotation of the threaded rod, said threading carries out a translational movement.
According to an embodiment of the invention, the first translation means can be arranged perpendicularly to the shaft and parallel to a lateral frame part of the seat surface support frame.
According to an embodiment of the invention, the seat furniture chassis can comprise a foot rest support structure for the leg and/or foot rest. The second translation means can be connected with the foot rest support structure such that a translational movement of the second translation means triggers a translational movement of the foot rest support structure. This translational movement of the foot rest support structure can also be described as a retraction movement or extension movement of the leg and/or foot rest.
According to an embodiment of the invention, the leg and/or foot rest can be designed for a pivoting movement in the case of a translational movement of the foot rest support structure. This pivoting movement can take place for example as is described in DE 10 2009 051 576 Al.
According to an embodiment of the invention, the seat furniture chassis can comprise a guide means. The second translation means can be designed to be guided by the guide means during a translational movement.
According to an embodiment of the invention, the seat furniture chassis can comprise rollers which connect the second translation means with the guide means. The guide means can be designed as a guide rail, in which the rollers are guided during a translational movement of the second translation means.
According to an embodiment of the invention, the guide means can be designed in a rear end region for a guiding of the second translation means downwards. By means of this sort of the guiding, an additional pivoting movement of the leg and/or foot rest upwards can be triggered such that the leg and/or foot rest is in retracted state even less visible for a user.
According to an embodiment of the invention, the conversion means can be designed, during an extension movement of the leg and/or foot rest to trigger a pivoting-out movement of the leg and/or foot rest and during a retraction movement of the leg and/or foot rest to trigger a pivotingin movement of the leg and/or foot rest. As already mentioned, this can for example occur in the manner described in DE 10 2009 051 576 Al.
According to an embodiment of the invention a movement of the second translation means downwards-that is in the direction of the standing surface of the seat furniture in the use positioncan to convert into a pivoting movement of the leg and/or foot rest away from the standing surface.
According to an embodiment of the invention, the conversion means can be designed to trigger the movement of the second translation means downwards at the end of a pivoting-in movement of the leg and/or foot rest. This is especially advantageous so that the conversion means require little installation space and the leg and/or foot rest in retracted state can hardly be seen.
According to an embodiment of the invention, the conversion means can comprise at least a third and a fourth of the gears and a third translation means. These components can be disposed in a second lateral edge region of the seat surface region located opposite the first lateral edge region. The third gear can be driven by the shaft. The fourth gear can engage in the third gear and be designed for the driving of the third translation means.
The conversion means in the second lateral region can be disposed in mirror-image to the conversion means in the first lateral region. It is thus possible that in both lateral regions are disposed two translation means. The functionality of the conversion means can be similar or identical in both lateral regions. By means of the disposition of the conversion means in both lateral regions, a more precise guiding of the foot rest support structure is achieved. In addition, it is especially advantageous that the conversion means in both lateral regions are driven by the same shaft. The gears in both lateral regions are therefore driven in synchrony with one another by the same shaft.
Further characteristics and advantages of the present invention become clear with the help of the following description of preferred embodiment examples with reference to the accompanying drawings. In this regard, the same reference signs are used for identical or similar components and/or components having identical or similar functions. Herein, figure 1 shows a schematic perspective view of a seat furniture chassis according to an embodiment of the invention having extended and pivoted-out leg and/or foot rest; figure 2 shows a schematic respective view, obliquely from below, of the seat furniture chassis from figure 1; figure 3 shows a schematic lateral perspective view of the seat furniture chassis from figure 1; figure 4 shows a schematic perspective view of the seat furniture chassis from figure 3 having partially pivoted-in and retracted leg and/or foot rest; figure 5 shows a schematic perspective view of the seat furniture chassis from figure 4 having completely pivoted-in and retracted leg and/or foot rest; figure 6 shows a schematic lateral view of the seat furniture chassis from figure 5; figure 7 shows a schematic perspective view of the seat furniture chassis from figure 1 having partially pivoted-in and retracted leg and/or foot rest; and figure 8 shows a schematic perspective view of the seat furniture chassis from figure 7 having completely pivoted-in and retracted leg and/or foot rest.
The seat furniture chassis 100 comprises a leg and/or foot rest 101 which in the context of this description for improved readability is also described as foot rest 101. The foot rest 101 is fastened to a leg and/or foot rest support structure 102. Additionally, the seat furniture chassis 100 comprises a seat surface support frame 103. This frames a seat surface region 106 and has two lateral frame parts 104, which are opposite to one another, and a rear frame part 105. The seat furniture chassis 100 can in addition comprise a back support, which is not shown in order to improve clarity.
The seat furniture chassis 100 comprises furthermore a drive means 107 which drives a shaft 108 which extends parallel to the rear frame part 105 of the seat surface support frame 103. The rotation of the shaft 108 is transmitted into two lateral edge regions of the seat surface region 106 onto a lower gear 109 which engages with an upper gear 110. This arrangement of the shaft 108 and the four gears 109 and 110 at both lateral ends of the shaft 108 facilitates a relatively low disposition of the shaft 108, such that neither the drive means 107 nor the shaft 108 collide with a suspension of the seat surface and are disposed in an especially space-saving manner. The installation-space-saving construction of the seat furniture chassis 100 is seen especially clearly from figure 6.
The rotation of the upper gear 110 is transmitted to a V-belt 111, which in the shown embodiment is used as a first translation means. A carriage 112 is connected with the V-belt 111 such that the carriage 112 is during a rotational movement of the upper gears 110 moved translationally. The carriage 112 has two wheels which are guided in a guide rail 400 during the translational movement.
It is especially advantageous that both V-belts 111 are driven on both sidesof the seat surface region 106 by the same shaft 108. As a result, the translational movement of the carriage 112 takes place evenly and synchronously on both sides.
The carriage 112 is connected with the foot rest support structure 102, such that its translational movement is converted into a translational movement of the foot rest support structure 102. This results in a retraction movement or extension movement of the foot rest 101. In this regard, during the retraction movement, the foot rest 101 is pivoted-in. During the extension movement, the foot rest 101 is pivoted-out. The pivoting-in movement and pivoting out-movement takes place in a known manner. It is for example described in DE 10 2009 051 576 Al.
The guide rail 400 has at its rear end a bend 401, which in the use position of the seat furniture chassis points downwards. This can be particularly well seen in a comparison of figures 7 and 8. At the end of the retraction movement, the rear roller of the carriage 112 travels into the bend 401 such that the carriage carries out a slightly rotational movement. This rotational movement ensures that the foot rest 101 is pivoted again additionally upwards such that the foot rest 101 in a completely pivoted-in-state (see figure 8) is accommodated in an especially spacesaving manner.

Claims (14)

1. Sædechassis (100), omfattende en udtrækkelig og tilbagetrækkelig ben-og/eller fodstøtte (101), en sædeoverfladestøtteramme (103), en drivmekanisme (107) og et omstillingsorgan der er udformet til at omdanne et impulsmomentgenereret af drivmekanismen (107) til en forlængelsesbevægelse og/eller tilbagetrækningsbevægelse af fodstøtten (101), hvor omstillingsorganet omfatter en aksel (108), der kan drives af drivmekanismen (107) og er indrettet parallelt med en bagrammedel af sædeoverfladestøtterammen, hvor sædeoverfladestøtterammen omgiver et sædeoverfladeområde, og omstillingsorganet omfatter mindst to tandhjul (109, 110) og et første translationsorgan (111), der er indrettet i et første sidestillet kantområde af sædeoverfladeområdet eller et vertikalt fremspring af sædeoverfladeområdet, hvor et første af tandhjulene (109) kan drives af akslen (108) og et andet af tandhjulene (110) er udformet til at drive det første translationsorgan (111), hvor det første translationsorgan (111) er udformet som en kilerem, kæde, tandrem eller gevindstang, kendetegnet ved, at de to tandhjul (109, 110) griber ind i hinanden.A seat chassis (100), comprising a retractable and retractable leg and / or foot support (101), a seat surface support frame (103), a drive mechanism (107), and a switching means designed to convert an impulse torque generated by the drive mechanism (107) to an extension movement and / or retraction movement of the footrest (101), the switching means comprising a shaft (108) operable by the drive mechanism (107) and arranged parallel to a rear frame portion of the seat surface support frame, wherein the seat surface support frame comprises a seat surface area and gears (109, 110) and a first translation means (111) arranged in a first lateral edge region of the seat surface region or a vertical projection of the seat surface region, wherein a first of the gears (109) can be driven by the shaft (108) and a second by the gears (110) are configured to drive the first translation means (111), the first translation means (111) are designed as a V-belt, chain, timing belt or threaded rod, characterized in that the two gears (109, 110) engage one another. 2. Sædechassis ifølge det foregående krav, kendetegnet ved, at omstillingsorganerne omfatter et andet translationsorgan, der er forbundet med det første translationsorgan og som bevæges fremad når akslen er drevet af drivmekanismen.Seat chassis according to the preceding claim, characterized in that the switching means comprise a second translation means, which is connected to the first translation means and which is moved forward when the shaft is driven by the drive mechanism. 3. Sædechassis ifølge det foregående krav, kendetegnet ved, at det første translationsorgan er indrettet vinkelret på akslen og er indrettet parallelt med en sidestillet rammedel af sædeoverfladestøtterammen.Seat chassis according to the preceding claim, characterized in that the first translation means is arranged perpendicular to the shaft and is arranged parallel to an adjacent frame part of the seat surface support frame. 4. Sædechassis ifølge et af de to foregående krav, kendetegnet ved, at sædechassiset omfatter en fodstøttestruktur til ben- og/eller fodstøtte, hvor det andet translationsorgan er forbundet med fodstøttestrukturen, således at en translationsbevægelse af det andet translationsorgan udløser en translationsbevægelse af fodstøttestrukturen.Seat chassis according to one of the preceding two claims, characterized in that the seat chassis comprises a footrest structure for leg and / or footrest, wherein the second translation means is connected to the footrest structure, so that a translation movement of the second translation means triggers a translation movement of the footrest structure. 5. Sædechassis ifølge det foregående krav, kendetegnet ved, at ben- og/eller fodstøtten er udformet til en foldebevægelse under en translationsbevægelse af fodstøttestrukturen.Seat chassis according to the preceding claim, characterized in that the leg and / or footrest is designed for a folding movement during a translational movement of the footrest structure. 6. Sædechassis ifølge mindst et af de tre foregående krav, kendetegnet ved, at sædechassiset omfatter et styreorgan, hvor det andet translationsorgan er udformet til at blive styret af styreorganet under en translationsbevægelse.Seat chassis according to at least one of the preceding three claims, characterized in that the seat chassis comprises a guide means, wherein the second translation means is designed to be controlled by the control means during a translation movement. 7. Sædechassis ifølge det foregående krav, kendetegnet ved, at sædechassiset omfatter ruller der forbinder det andet translationsorgan med styreorganet, hvor styreorganet er udformet som en styreskinne, hvori rullerne er styret under en translationsbevægelse af det andet translationsorgan.Seat chassis according to the preceding claim, characterized in that the seat chassis comprises rollers connecting the second translation means to the control means, wherein the control means is formed as a guide rail, wherein the rollers are guided during a translation movement of the second translation means. 8. Sædechassis ifølge et af de to foregående krav, kendetegnet ved, at styreorganet er udformet i en bageste endedel til at styre det andet translationsorgan i retningen af en standflade af sædeenheden.Seat chassis according to one of the preceding two claims, characterized in that the control means is formed in a rear end portion for guiding the second translation means in the direction of a stand surface of the seat unit. 9. Sædechassis ifølge mindst et af de foregående krav, kendetegnet ved, at omstillingsorganerne er udformet til at udløse en udfoldningsbevægelse af ben-og/eller fodstøtten under en forlængelsesbevægelse af ben- og/eller fodstøtten og til at udløse en indfoldningsbevægelse af ben- og/eller fodstøtten under en tilbagetrækningsbevægelse af ben- og/eller fodstøtten.Seat chassis according to at least one of the preceding claims, characterized in that the switching means are designed to trigger a folding motion of the leg and / or footrest during an extension movement of the leg and / or footrest and to trigger a folding movement of the leg and / or the footrest during a retraction of the leg and / or footrest. 10. Sædechassis ifølge det foregående krav, kendetegnet ved, at omstillingsorganerne er udformet til at omdanne en bevægelse af det andet translationsorgan i retning af standfladen til en foldebevægelse af ben- og/eller fodstøtten væk fra standfladen.Seat chassis according to the preceding claim, characterized in that the switching means are designed to convert a movement of the second translation means in the direction of the stand surface into a folding movement of the leg and / or foot support away from the stand surface. 11. Sædechassis ifølge det foregående krav, kendetegnet ved, at omstillingsorganerne er udformet til at udløse bevægelsen af det andet translationsorgan i retning af standfladen ved enden af indfoldningsbevægelsen af ben- og/eller fodstøtten.Seat chassis according to the preceding claim, characterized in that the switching means are designed to trigger the movement of the second translation means in the direction of the stand surface at the end of the folding movement of the leg and / or footrest. 12. Sædechassis ifølge mindst et af de foregående krav, kendetegnet ved, at omstillingsorganerne omfatter mindst et tredje og et fjerde tandhjul og et tredje translationsorgan, der er indrettet i et andet sidestillet kantområde af sædeoverfladeområdet placeret over for det første sidestillede kantområde, hvor det tredje tandhjul og det fjerde tandhjul griber ind i hinanden, hvor det tredje tandhjul er drevet af akslen, og det fjerde tandhjul er udformet til at drive det tredje translationsorgan.Seat chassis according to at least one of the preceding claims, characterized in that the switching means comprise at least a third and a fourth sprocket and a third translation means arranged in a second side edge area of the seat surface area positioned opposite the first side edge region, wherein the third gears and the fourth gear engage each other, the third gear being driven by the shaft and the fourth gear designed to drive the third translation means. 13. Sædechassis ifølge det foregående krav, kendetegnet ved, at det tredje translationsorgan er udformet som en kilerem, kæde, tandrem eller gevindstang.Seat chassis according to the preceding claim, characterized in that the third translation means is designed as a V-belt, chain, timing belt or threaded rod. 14. Sædeenhed, omfattende et sædechassis ifølge mindst et af de foregående krav.A seat unit comprising a seat chassis according to at least one of the preceding claims.
DK16727960.3T 2015-03-11 2016-03-11 SEAT CHASSIS comprising an extendable and retractable footrest DK3267841T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202015101262.4U DE202015101262U1 (en) 2015-03-11 2015-03-11 Seating furniture chassis with a retractable and extendable footrest
PCT/EP2016/055327 WO2016142530A1 (en) 2015-03-11 2016-03-11 Seat furniture chassis comprising an extendable and retractable foot rest

Publications (1)

Publication Number Publication Date
DK3267841T3 true DK3267841T3 (en) 2019-02-25

Family

ID=56116393

Family Applications (1)

Application Number Title Priority Date Filing Date
DK16727960.3T DK3267841T3 (en) 2015-03-11 2016-03-11 SEAT CHASSIS comprising an extendable and retractable footrest

Country Status (4)

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EP (1) EP3267841B1 (en)
DE (1) DE202015101262U1 (en)
DK (1) DK3267841T3 (en)
WO (1) WO2016142530A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10631652B2 (en) 2016-03-11 2020-04-28 Innotec Motion GmbH Seating furniture chassis with a retractable and extendable footrest
DE102018005173A1 (en) * 2018-06-28 2020-01-02 Georg Appeltshauser Furniture

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3794381A (en) * 1971-10-26 1974-02-26 D Caldemeyer Footrest for reclining chair
US4715654A (en) * 1986-03-07 1987-12-29 Laskowitz Joseph F Reclining chair with retractable footrest
DE29717456U1 (en) * 1997-09-30 1997-11-13 Frank, Wolfgang, 71540 Murrhardt Seating
DE102009051576B4 (en) 2009-10-26 2016-10-06 Georg Appeltshauser seating
CN202234113U (en) * 2011-08-17 2012-05-30 李宛豫 Overturning type foot rest

Also Published As

Publication number Publication date
EP3267841B1 (en) 2018-11-14
DE202015101262U1 (en) 2016-06-15
WO2016142530A1 (en) 2016-09-15
EP3267841A1 (en) 2018-01-17

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