WO2015136034A1 - Stuhl mit einer höhenverstelleinrichtung - Google Patents
Stuhl mit einer höhenverstelleinrichtung Download PDFInfo
- Publication number
- WO2015136034A1 WO2015136034A1 PCT/EP2015/055164 EP2015055164W WO2015136034A1 WO 2015136034 A1 WO2015136034 A1 WO 2015136034A1 EP 2015055164 W EP2015055164 W EP 2015055164W WO 2015136034 A1 WO2015136034 A1 WO 2015136034A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- longitudinal axis
- clamping
- pedestal
- respect
- support column
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/20—Chairs or stools with vertically-adjustable seats
- A47C3/30—Chairs or stools with vertically-adjustable seats with vertically-acting fluid cylinder
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/20—Chairs or stools with vertically-adjustable seats
- A47C3/28—Chairs or stools with vertically-adjustable seats with clamps acting on vertical rods
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- 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
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/402—Support for the head or the back for the back adjustable in height
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
- A47D11/00—Children's furniture convertible into other kinds of furniture, e.g. children's chairs or benches convertible into beds or constructional play-furniture
- A47D11/02—Chairs convertible into children's chairs
Definitions
- the invention relates to a chair, in particular office chair or children's and juvenile chair, with a seating body providing a seat body assembly which is supported via a longitudinal axis extending support column assembly to a suitable for parking the chair on a base pedestal, and with a support column arrangement a along the longitudinal axis extendingfeaturenverstellelement having a supported on the pedestal first pillar part and a relation to the first pillar part in the direction of
- a chair for example an office chair or a child's chair
- a seat height via, for example, a gas spring.
- a seat body assembly is possible to optimally adapt the seat to the respective height of the child.
- the latching is to be secured, for example, by means of a clamping sleeve.
- the stroke of a gas spring is limited, whereby the possibility to adjust the seat height, is also limited.
- an adjustment of the seat height of the chair for both a child and an adult is not possible. It is therefore an object of the present invention to improve the height adjustment in a chair of the type mentioned.
- the pedestal has a height adjustment, with which the first pillar part in at least two mutually different longitudinal positions with respect to the longitudinal axis of the pedestal is releasably fastened.
- the already telescopically adjustable height adjustment element which has a first column part and at least one second column part, e.g. a gas spring, as a whole with respect to the pedestal height adjustable, so that, for example, this gas spring or the telescopic height adjustment element occupies different basic height positions above the ground.
- the height adjustment element as such need only have a relatively small adjustment range, so that for example the chair is suitable in a lower position of the height adjustment element with respect to the pedestal for children and younger adolescents, while it is optimally suitable for adults, if the height adjustment element as a whole above or is mounted at a greater distance to the ground on the pedestal.
- the height adjustment device forms, so to speak, a base height adjustment device for the height adjustment element.
- a third column part with respect to the longitudinal axis is slidable or adjustable, so that a larger telescopic stroke of the height
- the third pillar part is slidably supported on the second pillar part, the second pillar part on the first pillar part.
- preferred is an arrangement with only two column parts whose stroke is sufficient for sufficient height adjustment.
- a preferred embodiment of the invention provides that the first pillar part or a supporting element carrying the first pillar part, for example a tubular receiver or holder for the height adjustment element, a
- Support column or the like fixed with respect to the longitudinal position with respect to the longitudinal axis of the pedestal is fixed, for example, clamped and / or lockable and / or form-fitting fixable.
- the first column part is rotatably mounted with respect to the pedestal about the longitudinal axis.
- the Hohenverstellelement need as such have no rotation when the user wants to rotate the seat body assembly about the longitudinal axis.
- An expedient embodiment provides that the second column part with respect to the first column part is non-rotatable or rotationally fixed, but is slidingly movable. Thus, although the telescopic movement of the column parts can take place. Nevertheless, the upper, second column part does not rotate relative to the first column part.
- Longitudinal region of the second column part is arranged, so that the seat surface body and the backrest body at an adjustment of the longitudinal position of the second pillar member relative to the first pillar part has different distances to the ground.
- the backrest part for example at the top, to carry the support body, for example a support column, in a fixed manner to support the lower, first pillar part.
- the backrest body is expediently supported on the first pillar part or also on a support part carrying the first pillar part, for example a pillar part which is adjustably mounted on the foot part with respect to the longitudinal axis, while the seat body is adjustable body based on the second pillar member relative to the backrest body along the longitudinal axis of the seat body so can join a seat height adjustment, while the backrest body occupies the base position, which pretends the height adjustment, so to speak.
- a preferred embodiment of the invention provides that the second column part is held against rotation on the first column part with respect to the longitudinal axis. This has already been addressed. Thus, the height adjustment ensures, as it were, that the second column part and thus also the seat surface body do not rotate relative to the backrest body.
- This measure can be achieved, for example, by providing a cutout on the backrest body in which the seat surface body engages.
- a cutout allows, for example, a lighter or better seat depth adjustment, that is, at low seat depth of the seat body can protrude into the neck of the backrest body.
- the cutout can also serve to represent, as it were, an anti-twist device for the seat surface body.
- the height adjustment element already provides the anti-rotation device, i. that the second column part is non-rotating relative to the first column part, so that from the outset the seat surface body can not rotate relative to the backrest body.
- the seat body is transverse to the longitudinal axis to adjust a seat depth adjustable, so that the seat can provide at least two mutually different seat depths relative to the backrest surface.
- a plurality, in particular infinitely adjustable, seat depths are possible.
- the seat surface body so to speak from the upper, second column part releasably fastened and in at least two mounting positions on the upper pillar part, the second pillar part can be mounted or fastened.
- a mounting position is such that a front side of the seat bottom part protrudes forward in front of the seat back body, while the other position provides that the front side is farther back is.
- the height adjustment device may provide in a first embodiment, that a spacer assembly is provided with one or more disk bodies, which is mounted with respect to the longitudinal axis between the Hohenverstellelement and the pedestal to increase a distance between the pedestal and the Hohenverstellelement.
- the spacers include, for example, cylindrical body, in particular hollow cylindrical body or sleeves.
- the height adjustment device has at least one telescopic element, for example a support column carrying the height adjustment element.
- This telescopic element or the support column can be detachably mounted or connected to the pedestal in different height positions or positions with respect to the longitudinal axis.
- the height adjustment device preferably comprises a clamping device and / or a locking device for clamping the height adjustment element or for locking the height adjustment element or a support element carrying the adjustment element, for example a support column.
- a particularly preferred embodiment of the invention provides that the height adjustment almost the jaw arrangement described in more detail below.
- the height adjustment device has a clamping jaw arrangement for clamping the support column arrangement with the pedestal in at least two mutually different longitudinal positions with respect to the longitudinal axis, wherein the clamping jaw arrangement at least three arranged at an angular distance about the longitudinal axis jaws, which are adjustable between a clamped the support column assembly to the pedestal clamping position and a longitudinal adjustment of the support column assembly to the pedestal along the longitudinal axis enabling release position.
- the support column assembly includes, for example, a rigid or fixed
- the support column assembly comprises a column body or a support column, which is clamped with the jaw assembly with respect to the pedestal.
- the jaw arrangement acts, for example, between a receptacle and a holding section, which is provided on a component of pedestal or support column arrangement, in particular of the support column arrangement itself, and engages in the receptacle connected to the respective other component of pedestal or support column arrangement.
- a receptacle is arranged on the base frame, into which the support column or support column arrangement engages with the holding section.
- the jaws clamp an outer periphery of the support pillar assembly to an inner periphery of the receptacle provided by or disposed on the pedestal.
- the Klennnnbackenan angel preferably identifies the support column assembly with the pedestal in the manner of a chuck.
- the pedestal has a kind of clamping chuck, comparable to a chuck, for receiving and clamping the support column assembly.
- At least one jaw is preferably wedge-shaped.
- the jaw assembly expediently comprises at least one inclined surface which is provided on one or more clamping jaws.
- the inclined surface of the clamping jaw or a respective clamping jaw can abut, for example, on the holding section, in particular therefore the support column arrangement, but also on the receptacle.
- the inclined surface is provided for engagement with, for example, an actuating element explained below, so that it acts on the clamping jaw on the inclined surface.
- the jaws or clamping surfaces are arranged at equal intervals around the longitudinal axis. But it is also conceivable that, for example, the angular distance between a first pair of clamping jaws or clamping surfaces is greater than the angular distance between a second pair of clamping jaws or clamping surfaces.
- the jaw assembly preferably includes a plurality of sets of clamping surfaces arranged at a longitudinal distance from each other with respect to the longitudinal axis. For example, a first set of clamping surfaces arranged at an angular distance about the longitudinal axis and at a longitudinal spacing between them is provided. with respect to the longitudinal axis, a second set of clamping surfaces arranged at an angular distance about the longitudinal axis is present in the clamping jaw arrangement.
- the sets of clamping surfaces preferably each comprise a plurality of clamping surfaces, which have an angular distance with respect to the longitudinal axis to each other.
- clamping jaws or the clamping surfaces arranged thereon have approximately the same longitudinal position with respect to the longitudinal axis.
- annular configuration i. that the clamping jaws or clamping surfaces extend annularly about the longitudinal axis.
- the jaws may be arranged, for example, in the manner of a clamping ring or retaining ring.
- clamping jaws or clamping surfaces of the clamping jaws are arranged in two rings or rings which are spaced apart with respect to the longitudinal axis.
- the jaws or clamping surfaces of a ring have approximately the same longitudinal position with respect to the longitudinal axis.
- the jaws or clamping surfaces of the jaws account for a large proportion of the circumferential length. Thus, it is therefore expedient if the proportion of clamping surfaces of the clamping jaws is greater than a proportion of recesses between the clamping jaws. Thus, so clamp the jaws or clamping surfaces the respective counterpart, for example, the support column assembly and the aforementioned holding section, very close and close together.
- the jaws so for example form a wreath.
- At least one pair of clamping surfaces which have a longitudinal spacing with respect to the longitudinal axis, to be provided by a single clamping jaw. be presented. It is therefore possible for a clamping jaw to have a first and a second clamping surface, which have a longitudinal spacing relative to one another with respect to the longitudinal axis.
- the two clamping surfaces of these at least one jaws may have a clamping action in several longitudinal positions of the support column assembly with respect to the pedestal.
- the clamping surfaces of the at least one jaw are assigned to different longitudinal positions, i. in that, for example, the first clamping surface acts in a first longitudinal position of the support column arrangement, the second clamping surface is effective in a second longitudinal position.
- the clamping surfaces are assigned in this case different longitudinal positions of the support column assembly.
- first set of clamping surfaces is arranged on a first set of clamping jaws, while the second set of clamping surfaces is arranged on a second set of clamping jaws. In this way, it is particularly easy that the jaws and thus the clamping surfaces are individually actuated, thus providing an optimal clamping action.
- the jaws of both sets of clamping jaws are simultaneously adjustable between the release position and the clamping position.
- a sleeve to act on both sets of jaws and to actuate them, so to speak, simultaneously from the release position into the clamping position or vice versa.
- first set of clamping jaws and the second set of clamping jaws are individually adjustable between the clamping position and the release position.
- One way to operate one or more jaws is that an actuating element is provided for the actuation thereof. It is expedient if the actuating element can actuate a plurality of clamping jaws simultaneously between the release position and the clamping position, that is to say, for example, from the release position into the clamping position or vice versa from the clamping position into the release position.
- the actuating element is preferably annular.
- the jaw assembly expediently comprises an annular configuration of a plurality of jaws, which are then actuated by the annular actuator between the release position and the clamping position.
- a preferred embodiment provides that the actuating element has a passage opening for the passage or for passing through the support column arrangement.
- the actuating element comprises a nut.
- the actuating element forms a closure element or a closure for a receptacle of the pedestal, which is provided for receiving the support column assembly.
- the support column arrangement expediently comprises or forms an actuating element for adjusting at least one clamping jaw from the release position into the clamping position and / or from the clamping position into the release position.
- At least one clamping jaw preferably an annular arrangement of a plurality of clamping jaws, can be actuated by a load by the supporting column arrangement from the release position in the direction of the clamping position.
- the support column arrangement provides a kind of
- At least one clamping jaw of the clamping jaw arrangement in particular by an annular arrangement of a plurality of clamping jaws, has a supporting projection or a supporting receptacle for supporting the supporting column arrangement on the base frame.
- the support column arrangement engages in the support receptacle.
- the support projection to protrude so far in the direction of the receptacle or a receptacle into which the support column arrangement engages that the support column arrangement is supported with respect to the longitudinal axis.
- the jaws or jaw assembly between a support position in which the support column assembly with respect to the longitudinal axis of the support projection or the support receptacle is supported and an inactive position is adjustable, in which this support is not given.
- the clamping position is nevertheless possible, i. that the respective jaw or the arrangement of the jaws in the release position can still take the clamping position and thus jam the support column assembly with respect to the pedestal.
- An expedient embodiment of the invention provides that the support projection or the support receptacle is effective in a first longitudinal position of the support column assembly with respect to the pedestal in the sense of supporting the support column assembly on the pedestal, ie, for example, assumes a support position. Then, the support projection engages or engages, for example, the support column assembly. In a second longitudinal position of the support column assembly with respect to the pedestal, however, the support projection or the support receptacle is not effective, at least not in direct engagement with the support column assembly. In this second longitudinal position, the jaw having the support projection or the support receptacle can still be brought into the clamping position, in which the pedestal is jammed with the support column arrangement or vice versa.
- a preferred embodiment provides that the support projection or the support receptacle are arranged between clamping surfaces, for example, the aforementioned, having a longitudinal distance with respect to the longitudinal axis Clamping surfaces.
- One of the two clamping surfaces is assigned to the support position, thus acting in addition to the support in the support position in the sense of jamming.
- the other clamping surface is assigned to the inactive position, so clamped the support column assembly with the pedestal even if the support projection or the support bracket do not work.
- a preferred embodiment of the invention provides that at least one jaw of the jaw assembly is loaded in the direction of the release position by means of a spring element.
- a spring element for example, by the load on the basis of the support column assembly or the aforementioned actuating element or both the adjustment in the direction of the clamping position is provided, while in the direction of the release position, the spring element or the spring arrangement acts.
- the spring arrangement or the spring element is annular.
- the spring element expediently loads at least three clamping jaws arranged annularly around the longitudinal axis in the direction of the release position radially inward or radially outward, depending on the direction in which the jamming is provided.
- a so-to-speak telescopic arrangement that is to say that the support column arrangement has a height adjustment element, for example a gas spring, a telescopic rod, in particular a spring-loaded telescopic rod or the like, which is arranged in or on a tube element for holding the height adjustment element.
- a height adjustment element for example a gas spring, a telescopic rod, in particular a spring-loaded telescopic rod or the like, which is arranged in or on a tube element for holding the height adjustment element.
- the Hohenverstellelement example page
- the gas spring or as shown in the drawing, the tube member clamped to the pedestal.
- FIG. 1 is a partially sectioned front view of a chair in an upper longitudinal position
- Figure 2 shows a lower part of the chair according to Figure 1 in a lower
- FIG. 3 shows a section D1 from FIG. 1,
- FIG. 4 shows a detail D2 from FIG. 2,
- Figure 5 is an exploded view of a lower part of the chair according to the preceding figures
- FIG. 6 shows an enlarged detail of the view according to FIG. 5,
- Figure 7 is a perspective oblique view of a variant of the chair according to
- FIG. 1 A first figure.
- FIG. 8 shows a frontal view of the chair according to FIG. 7,
- FIG. 9 shows a side view of a variant of the chair according to FIGS. 7, 8 with a height adjustment device having spacers.
- Figure 10 shows a variant of the chair according to the preceding figures, but with respect to the pedestal telescopic support column.
- a chair 10 according to FIG. 1 has a seat body arrangement 11 having a seat surface body 12 and a backrest body 13.
- the backrest body 13 provides a backrest.
- the distance above a substrate U can be attached to it.
- Hand of a height adjustment device 24 can be adjusted, which is arranged between the seat body assembly 1 1 and a pedestal 15.
- the pedestal 15 has arms 16, at the free end portions rollers 17, support legs or the like are arranged. Thus, so the pedestal 15 can be parked with his arms 16 on the ground U in a conventional manner.
- the arms 16 are supported by a holding body 18 which is tubular.
- the support column assembly 30 engages with a holding portion 38 in the receptacle 28 a.
- the support column assembly 30 serves to support and support the seat body assembly 11.
- the seat body 12 is disposed at the top or at the free end portion of a height adjustment element 34 of the support column assembly 30.
- the support column assembly 30 includes a support column 31 which supports the height adjustment member 34.
- the Hohenverstellelement 34 is or includes, for example, a gas spring, a telescopic rod, which is in particular spring-loaded or the like.
- the support column 31 comprises a tubular element 36, in which the Hohenverstellelement 34 is arranged.
- the Hohenverstellelement 34 is supported on a bottom 32 of the tubular member 36 and is located at least partially in a limited by a peripheral wall 35 of the tubular member 36 interior of the support column 31 and der Rohrelements 36.
- the support column arrangement 30 does not comprise a height-adjustable element in the manner of the height adjustment element 34 or the gas pressure spring, that is to say that a longitudinal length of the support column arrangement 30 is fixed or fixed with respect to the longitudinal axis L, ie not variable.
- the improvement explained below would be effective, although it is provided in the exemplary embodiments that a basic height or basic height of the height adjustment element 34 with respect to the pedestal 15 can be set, so to speak, by means of a height adjustment device:
- the support column assembly 30 can be fixed as a whole with respect to the longitudinal axis L in different height positions, in this case, for example, a lower height position or longitudinal position LU and an upper height position or longitudinal position LO on the pedestal 15 using the height adjustment device 24.
- this is only to be understood as an example, that is, it is also possible in principle that further longitudinal positions of the support column assembly 30 with respect to the longitudinal axis L and the seat height H on the pedestal 15 are possible, in particular, so to speak continuously adjustable longitudinal positions or seat height positions.
- the height adjustment device 24 comprises a clamping jaw arrangement 25 with a 1. Set of jaws 26 and a second set of jaws 27.
- the jaw assembly 25 clamps the support column 31 in different height positions and with respect to the longitudinal axis L at a longitudinal distance.
- the clamping jaws 27 are arranged, for example, at the top in the region of the receiving opening 19, while the clamping jaws 26 at the bottom of the holding body 18, namely a lower receiving opening 22, clamp the support column arrangement 30 on the base frame 15.
- the support column 31 is therefore supported at the respective end regions of the receptacle 28 with its holding section 38.
- the support column assembly 30 is supported with respect to the longitudinal axis L at widely spaced areas, which allows a particularly stable and firm grip on the pedestal 15.
- the jaws 26 are components of a jaw ring 50, which is introduced from below into the receptacle 28, namely into the receiving opening 22.
- the jaws 26 have on their underside an actuating surface 51 on which an actuating element 40 acts.
- the actuator 40 includes, for example, a nut.
- a threaded portion 42 of the actuating element 40 can be screwed onto a thread 23 of the holding body 18 of the pedestal 15.
- An operator may, for example, grasp the actuating element 40 on a handle portion 43, which preferably has a corrugation, and screw it onto the thread 23, so to speak.
- the actuating element 40 has a support body 44, which acts with its end face 45 on the actuating surfaces 51 of the clamping jaws 26.
- the support column assembly 30 can engage in a receptacle 46 of the actuating element 40, in the present case a passage opening, and penetrate the actuating element 40. Then, as shown in FIG. 2 or 4, it protrudes downward in front of the actuating element 40, that is to say the support column 31 penetrates the receptacle 28 and protrudes downward in front of the holding body 18 of the pedestal 15.
- a stop or flange 47 of the actuating element 40 is optionally used for abutment against the underside or end face of the holding body 18th
- the end face 45 ie an actuating surface, moves in the direction of the holding body 18 and acts on the actuating surfaces 51 of the clamping jaws 26 in order to adjust them in the direction of their clamping position.
- the clamping jaws 26 have ribs 52 on their rear side facing the inner circumference of the receptacle 28, said ribs 52 having inclined surfaces 53 on the inner circumference of the Receiving opening 22, at least on the inner circumference of the receptacle 28, rest. Also adjacent to the ribs 52 are inclined surfaces that can unfold the wedge effect explained below. In this case, for example, the ribs 52 may have only the function of guide ribs. However, the ribs 52 can also form guide ribs when they act with their inclined surfaces 53.
- clamping jaws 26 slide with the inclined surfaces 53 along the inner circumference of the receptacle 28 and are displaced radially inward due to the oblique inclination or wedge shape of the inclined surfaces 53.
- clamping surfaces 54, 55 are urged radially inward toward the support column assembly 30 to jam the support column assembly 30. Then take the jaws 26 a clamping position.
- the clamping jaws 26 are arranged annularly around the support column 31 or annularly on the inner circumference of the receptacle 28. There are presently five support jaws or jaws 26 are provided which have an angular distance from each other, expediently an approximately equal angular distance.
- annular clamping jaws 26 are provided, which clamp the support column assembly 30, so to speak evenly at its radial outer circumference at several points.
- the jaws 26 are of a clasp-like or annular spring element 59 radially outward, ie opposite to the aforementioned
- the spring element 59 also has in an advantageous manner the function of holding the jaws 26 in place.
- the spring element 59 engages namely in a receptacle 56 which is located between the clamping surfaces 54, 55, the jaws 26 and is clamped there.
- a receptacle 56 which is located between the clamping surfaces 54, 55, the jaws 26 and is clamped there.
- guides or guide receptacles may be provided for the ribs 52, so that in any case the clamping jaws 26 reliably maintain their respective rotational angle position.
- the jaws 26 can not only clamp the support column assembly 30, but also support it directly.
- the clamping surfaces 55 act on the outer circumference of the support column 31, that is to say the peripheral wall 35. In this case, only one clamping action is present.
- the bottom 32 of the support column 31 is supported on a designed as a stage between the support surfaces 54, 55 support receptacle 57.
- the support surface 55 projects radially inward of the support surfaces 54, thereby forming the aforementioned step.
- the actuator 40 can be operated with little force due to the small pitch of the thread 21 to achieve the aforementioned clamping effect both in the support of the support column 31 on the support seats 57, as well as in the so-called pure deadlock on the basis of the support surfaces 55.
- the support column assembly 30 For a particularly firm clamping effect of the upper, namely in the region of the receiving opening 22 arranged jaws 27, however, provides in the lower longitudinal position LU, the support column assembly 30, so to speak itself. It acts as an actuator for actuating the jaws 27th
- the Klennnnbacken 27 are arranged on a clamping body 60.
- the clamping body 60 comprises an annular body 62, from which the clamping jaws 27 protrude in the manner of teeth. Between the respective jaws 27, a distance 65 is provided in each case.
- a slot or a groove 66 located at a respective foot portion of a jaw 27, with which it is connected to the annular body 62, so that the jaws 27 relative to the annular body 62 radially outwardly or radially inside relatively easily individually let move.
- an inclined surface 63 is provided at the support column 31 and the support column assembly 30 facing inside the jaws 27.
- the clamping jaws 27 are so to speak wedge-shaped in cross-section, so that upon application of the clamping body 60 in the direction of the receiving opening 19 into the inclined surfaces 63 slide along the support surface 20 and thereby the jaws 27 radially inward in the sense of narrowing a passage opening 67 of the clamp body 60 and thus act in the direction of a clamping position for jamming the support column assembly 30 in the receptacle 28.
- the support surface 20 is funnel-shaped or conically inclined radially inward, so that the clamping effect or wedge effect of the inclined surfaces 63 is thereby reinforced.
- the clamping surfaces 64 are in the clamping position in the clamping seat on the outer circumference or on the peripheral wall 35 of the support column 31 at.
- the clamping body 60 is actuated by means of an actuating element 80, the actuating element 80 comprises a nut 81 which is screwed with a threaded portion 82 to a thread 21 of the holding body 18 of the pedestal 15. A threaded portion 82 then meshes with the thread 21.
- the actuator 80 is easily actuated.
- the handle portion 83 has optical reasons, for example, no corrugation or other structuring, so it is smooth and blends into the overall picture of the pedestal 15 harmoniously.
- the clamping effect in the upper longitudinal position LU readily enough, namely, when a support flange 84, which projects radially inward to a passage opening 86 of the actuating element 80, on an actuating surface 61 of the clamping body 60, which is provided on the annular body 62, acts.
- the clamping body 60 is acted upon in the direction of the receiving opening 19, whereby the clamping jaws 27 are actuated radially inward and thus clamp their clamping surfaces 64, the support column 31 at its outer periphery.
- the function of the jaws 27 is in the upper longitudinal position LU ( Figure 3) in principle limited to prevent tilting of the support column 31 transversely to the longitudinal axis L and the support column 31 with respect to the longitudinal axis L stable and tilt-proof to keep the pedestal 15 ,
- a support projection 33 for example a kind of flange or the like, then presses on the actuating surface 61 of the clamping body 60, so that this with great force, namely due to the weight of at least the seat body assembly. 1 1, but usually also the weight, which is present by the user of the chair 10, is actuated and the jaws 27 are actuated with great force in the clamping position.
- the support projection 33 thus forms, for example, an actuating projection.
- the actuating element 80 can be used as a closure of the upper receiving opening 19.
- the passage opening 86 is in fact dimensioned so that the support projection or actuating projection 33 fits through the passage opening 86 and can act on the actuating surface 61 from above.
- the clamping surfaces 54, 55 each form a 1. Set of clamping surfaces, the clamping surfaces 64 each have a second set of clamping surfaces.
- the clamping surfaces 54, 55 have a longitudinal distance with respect to the longitudinal axis L the second clamping surfaces 64th
- the backrest body 13 and the seat body 12 are separate, spaced apart in the height direction H or, for example, via a joint connected body. It is also possible that, in a chair according to the invention, the seat surface body, as it were, integrally surrounds or carries the backrest body.
- a configuration of a chair according to the invention provides that a backrest body 13 providing a backrest surface 13a has, as it were, a projecting leg 14a.
- the leg 14a is an option, so it is not necessary.
- the height adjustment element 34 penetrates an opening 29 of the leg 14a.
- a cutout 13b is preferably provided, for example a passage opening, in which the seat surface part 14 engages.
- a lower column part 34a is received in the tube element 36, in any case the support column 31, and supported there on the floor.
- An upper column part 34b which supports the seat surface body 12 makes it possible to adjust the seat height by being longitudinally adjustable or height-adjustable relative to the lower column part 34a with respect to the longitudinal axis L.
- a height of the cutout 13b is made so that the seat height of the seat surface 14 in a predetermined area, for example, suitable for children and adolescents or small adults and adults, each height adjustable.
- the height adjustment element 34 can be fixed as a whole with respect to the height to the ground U on the pedestal 15 in different longitudinal positions with respect to the longitudinal axis L, namely by the support column 31 or the tube member 36 are fixed in the corresponding different distances underground U on the pedestal 15. That's for example based on the already explained jaw assembly 25 possible.
- the jaw assembly 25 is indicated in FIG.
- a spacer body arrangement 70 (FIG. 9) is possible, which can be mounted on the holding body 18 and supports the lower, first pillar part 34a
- the spacer body arrangement 70 comprises, for example, one or more spacers 71, for example sleeves, rings or the like, which can be fastened, for example, to the base frame 15 by means of a screw thread, a catch, a bayonet connection or the like
- the column part 34a can be fitted, for example, with the aid of the illustrated clamping jaw arrangement 25
- the column part 34a it is also possible for the column part 34a to be screwed or lockable or both with a respective spacer body 71, for example the uppermost spacer body 71.
- the seat surface body 12 is adjustable transversely to the longitudinal axis L with respect to the backrest body 13, for example for setting a seat depth ST1 or a seat depth ST2.
- the upper column part 34b is non-rotatable relative to the lower column part 34a, so that in any case the seat surface body 12 does not abut transversely against the inner sides of the cutout or the recess 13b or oscillates back and forth there.
- the height adjustment element 34 for example, a gas spring or the like, in the tubular body or tube member 36, at least on the support column 31, rotatably mounted about the longitudinal axis L.
- the backrest body 13 rotates together with the seat bottom body 12 about the longitudinal axis L.
- a telescopic arrangement is possible, which is still clear from Figure 10.
- a support column element or a support column 171 with respect to the holding body 18 of the pedestal 15 along the longitudinal axis is longitudinally adjustable.
- a height adjustment device 24 in the form of a screw receptacle is provided on the holding body 18, into which the support column element or the support column 171 can be screwed in order to change its longitudinal position along the longitudinal axis L with respect to the pedestal 15 in this way. It may also be a screw thread between the support column 171 and the pedestal 15, for example, on the inner circumference of the holding body 18 may be provided.
- the support column 171 prefferably fastened relative to the base frame 15 on the basis of the clamping jaw arrangement 25 in two or more positions with respect to the longitudinal axis L.
- a seat body assembly 1 1 1 is provided, in which, in contrast to the previous examples, a backrest body 1 13 is pivotable relative to the leg 14 a to adjust an inclination of the backrest surface 13 a.
- a pivot joint 1 19 between the leg 14a and the backrest body 1 13 is provided.
- a support column assembly 30b which in itself is similar to the support column assembly 30, has a support column 31b having a peripheral wall 35b on which a retaining receptacle 39 is provided.
- the holding receptacle 39 is designed, for example, as a circumferential groove, for example in the form of a so-called undercut. In any case, several circumferential holding 35 or interventions may be provided, in which the jaws 26 can engage.
- the jaw arrangement 35 can engage in the holding receptacle 39 and thus support the support column arrangement 30b between the already explained longitudinal positions LO or LU in a central longitudinal position LM with respect to the longitudinal axis L with respect to the pedestal 15. Further such retaining seats 39 (not shown) are readily possible.
Landscapes
- Chairs Characterized By Structure (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112015000199.9T DE112015000199A5 (de) | 2014-03-14 | 2015-03-12 | Stuhl mit einer Höhenverstelleinrichtung |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201420002236 DE202014002236U1 (de) | 2013-09-02 | 2014-03-14 | Stuhl |
DE202014002236.4 | 2014-03-14 | ||
DE102015200677.8 | 2015-01-16 | ||
DE102015200677 | 2015-01-16 |
Publications (1)
Publication Number | Publication Date |
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WO2015136034A1 true WO2015136034A1 (de) | 2015-09-17 |
Family
ID=54070973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2015/055164 WO2015136034A1 (de) | 2014-03-14 | 2015-03-12 | Stuhl mit einer höhenverstelleinrichtung |
Country Status (2)
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DE (1) | DE112015000199A5 (de) |
WO (1) | WO2015136034A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019097754A (ja) * | 2017-11-30 | 2019-06-24 | 株式会社イトーキ | 椅子 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2021940A (en) * | 1978-05-31 | 1979-12-12 | Kinnarps Kontormoebler | Chair seat column |
US5462248A (en) * | 1993-09-02 | 1995-10-31 | Suspa Compart Aktiengesellschaft | Longitudinally adjustable column for chairs, tables or the like |
DE29904268U1 (de) * | 1999-03-10 | 1999-08-05 | Völkle, Rolf, 72290 Loßburg | Standrohrbefestigung in einem Fußkreuz eines Stuhls |
DE202008016369U1 (de) * | 2007-12-11 | 2009-07-02 | Tepe-Walser, Silvia | Vorrichtung zur Einstellung der Ausgangshöhe von Drehstühlen |
DE202009005418U1 (de) * | 2009-03-16 | 2010-08-05 | Tepe-Walser, Silvia | Vorrichtung zur Einstellung der Ausgangshöhe von Drehstühlen |
EP2724643A1 (de) * | 2012-10-25 | 2014-04-30 | Kinnarps Ab | Sperrvorrichtung |
-
2015
- 2015-03-12 DE DE112015000199.9T patent/DE112015000199A5/de active Pending
- 2015-03-12 WO PCT/EP2015/055164 patent/WO2015136034A1/de active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2021940A (en) * | 1978-05-31 | 1979-12-12 | Kinnarps Kontormoebler | Chair seat column |
US5462248A (en) * | 1993-09-02 | 1995-10-31 | Suspa Compart Aktiengesellschaft | Longitudinally adjustable column for chairs, tables or the like |
DE29904268U1 (de) * | 1999-03-10 | 1999-08-05 | Völkle, Rolf, 72290 Loßburg | Standrohrbefestigung in einem Fußkreuz eines Stuhls |
DE202008016369U1 (de) * | 2007-12-11 | 2009-07-02 | Tepe-Walser, Silvia | Vorrichtung zur Einstellung der Ausgangshöhe von Drehstühlen |
DE202009005418U1 (de) * | 2009-03-16 | 2010-08-05 | Tepe-Walser, Silvia | Vorrichtung zur Einstellung der Ausgangshöhe von Drehstühlen |
EP2724643A1 (de) * | 2012-10-25 | 2014-04-30 | Kinnarps Ab | Sperrvorrichtung |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019097754A (ja) * | 2017-11-30 | 2019-06-24 | 株式会社イトーキ | 椅子 |
Also Published As
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DE112015000199A5 (de) | 2016-07-14 |
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