CA2089525A1 - Chair - Google Patents
ChairInfo
- Publication number
- CA2089525A1 CA2089525A1 CA002089525A CA2089525A CA2089525A1 CA 2089525 A1 CA2089525 A1 CA 2089525A1 CA 002089525 A CA002089525 A CA 002089525A CA 2089525 A CA2089525 A CA 2089525A CA 2089525 A1 CA2089525 A1 CA 2089525A1
- Authority
- CA
- Canada
- Prior art keywords
- seat member
- seat
- chair according
- chair
- connecting member
- Prior art date
- Legal status (The legal status 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 status listed.)
- Abandoned
Links
Classifications
-
- 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
- A47C3/02—Rocking chairs
- A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
- A47C3/0255—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame pivotally mounted in the base frame, e.g. swings
Landscapes
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Chairs Characterized By Structure (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A chair includes a seat member and a back member hinged to the seat member.
A supporting frame is provided for the seat member and the back member. A leg rest member may be hinged to the front edge of the seat member. The seat member, the back member, and the leg rest member are connected to the supporting frame through connecting members whose length may be adjustable. The connecting members extend downwardly from the supporting frame, and at least one of the supporting members is connected to the back member. An additional connecting member is connected to the seat member in a portion of the seat member adjacent the front edge thereof. The connecting members may be strings, ropes, belts, chains, or tension springs. The seat member, the back member, and the leg rest member, which are connected through hinges, are freely movable relative to each other.
A chair includes a seat member and a back member hinged to the seat member.
A supporting frame is provided for the seat member and the back member. A leg rest member may be hinged to the front edge of the seat member. The seat member, the back member, and the leg rest member are connected to the supporting frame through connecting members whose length may be adjustable. The connecting members extend downwardly from the supporting frame, and at least one of the supporting members is connected to the back member. An additional connecting member is connected to the seat member in a portion of the seat member adjacent the front edge thereof. The connecting members may be strings, ropes, belts, chains, or tension springs. The seat member, the back member, and the leg rest member, which are connected through hinges, are freely movable relative to each other.
Description
21D8952 ~
BAÇ~G~ D OF THE INVENTION
1. Field of th~ Invention The present invention relates to a chair including a seat member and a back member, wherein the seat member and the back member are movably connecte~ to each other by means of a hinge and are supported by a support frame. To the front edge of the seat member may be connected a leg rest member in an articulated manner by means of a hinge.
The support frame supports the seat member and back rest member by means of a plurality of downwardly directed connecting members, wherein at leasi one of the connecting members is connected to the back member.
G:WMGO\40745,APP -2-2~8~
2. 12~scription of thç ~L A~
A large variety of types of chairs is known. In one type of chair, the seat member and the back member are rigidly connected ~o each other or are constructed as a single piece. In another type of chair, the back member is adjustable relative to the seat member, or the seat member and the back member are together pivotable relative to the support frame of the chair, wherein the mechanism for making the seat member and the back member adjustable in this manner is constructed such that, when the seat member and back member are adjusted, they move at differently large angles. When the members of the chair are adjustable, it is usually necessary to actuate them randomly for the adjustment.
As a rule, it is possible to distinguish between two principal types of chairs.
In the first principal type of chair, known from U.S. patents 1,96S,785, 1,885,663, 2,570,000, and European patents 214 250 and 102 546, the seat member and the back member are rigidly connected to each other, and the structural unit formed by the seat member and the back member is suspended from the support frame by means of connecting members. These connecting members may be stiff or may be chains or springs, see U.S. patents 1,B85,663 and 2,570,000. Because of the rigid connection between the seat member and the back member, these two components cannot be adjusted relative to each other, however, because of the manner in which the structural unit is suspended as described above, it is possible to impart a swinging movement to the stmctural unit.
In the second principal type of chair, the seat member and the back member are adjustable relative to each other. For example, Austrian patent 136 657 describes and shows a reclining chair which is swingably suspended between two support columns. This reclining G:\MARGO~407~S.. ~PP 3 20~2~
.
chair has a seat member, a back member, and a leg rest member, wherein these three components forming the reclining chair are connected to each other by means of hinges.
However, these components cannot move freely relative to each other because of the arrangement of a parallelogram-type control mechanism which consists of five levers, wherein one of these levers is formed by the lower portion of the back member and another lever is formed by a portion of the leg rest member. As a result, each adjustment of the back mernber also results inevitably in an adjustment of the leg rest member, and vice Yersa. This reclining chair is suspended from a support frame through two connecting members which have a common hinge point. One of the connecting members is connected to the seat member, and the other is connected to the back member. Because of the above-described configuration, a person using the reclinîng chair must adapt his or her position to the position of the leg rest member and the back member, which are positively guided relative to each other. This configuration is not considered useful.
A construction which is immediately comparable to the one disclosed in Austrian patent 136 657 is illustrated in U.S. Patent 2,254,869. In this case also, back member, seat member, and leg rest member are connected to each other by means of hinged connections, however, the movements of the components relative to each other are predetermined by a parallelogram-type control mechanism, so that the disadvantages describe~ above are also applicable to the construction of U.S. Patent 2,549,869.
Finally, U.S. Patent 2,717,630 discloses a reclining chair which is composed of several frame members, wherein the individual frame members are guided rela~ive to each other G:U-lARaO\40745.APP
2089~i2~
in such a way that the adjustment or pi~oting of one frame component inevitably results in adjustment or pivoting of the other frarne components.
G:tMARGO\4D745.Al'P S
2Q8~2~
SUMMARY OF THE INVENTION
Therefore, it is the primary object of the present invention to provide a seat of the above-describffi type which is constructed in such a way that it fully automatically adjusts itself to the position assumed by the user of the chair and, thus, provides a chair which is as comfortable as possible for the user and actually serves to relax the body of the user and does not, as is the case in all other known constructions, require that the body of the user has to adapt to the seat.
In accordance with the present invention, at least one additional connecting member is provided. The additional connecting member is connected to a fiont portion of the seat member or, if the chair has a leg rest member, the additional connecling member is connected to this leg rest member. The connecting members are straps, strings, ropes, belts, chains, or tension springs, and the length of the connecting members may be adjustable. The members connected by means of hinges, i.e., the seat member, the back member, and the leg rest member, are freely movable relative to each other.
The various features of novelty which characterize the invention are pointed out with particularity in the clairns annexed to and forming a part of the disclosure. For a better understanding of the invention, its operating advantages, and specific objects attained by its use, reference should be had to the drawing and descriptive matter in which there are illustrated and described prefelTed embodiments of the invention.
G:\MMGO~)745.~PP -6-2f389~
BRIEF DESCRIPTION Q~THE l)RAWI~
In the drawing:
Figs. 1, 2, and 3 are schematic side views of a first embodiment of a chair according to the present invention, showing three different positions of the members of the chair relative to each other;
Figs. 4, 5, and 6 are schematic side views of three additional embodiments of thc chair according to the present invention; and Fig. 7 is a partial schematic view of a hinge point of the chair according to the present invention.
. O:WAR00~40745.APP 7 208~2~
DES(~RIPrIQN OF TH~ PR~FERRED ~MBODIMENT~
The chair illustrated in Figs. 1-3 of the drawing has a seat member 1 and a back member 3 which is connected in an articulated manner to the rear edge of the seat member 1 by means of a freely movable hinge 2. In this embodiment, a leg rest member 4 is connected to the front edge of the seat member 1 also by means of a freely movable hinge 5. The lower end of the leg rest member 4 may extend to the floor 6. Small rollers or wheels, not shown, may advantageously be mounled at the bottom end of the leg rest member 4, so that the lower end of the leg rest member 4 can roll on the floor 6.
A support frame 7 is shown in the drawing by a broken line. The arc-shaped upper portion 8 of the support frame may form an arm rest or an arm rest surface.
The seat member 1 and ~he back member 3 are suspended in an articulated manner from the support frame 7 by means of comlecting members 9, 10, I l. The hinge points 12, 13 of the connecting members are fixed in relation to the support frame 7 and are preferably arranged in the region of the arm rest. All hinge points and connecting members are provided in pairs and are located perpendicularly, one behind the other, as seen in the direction of the plane of the drawing.
The connecting member 9, mounted in the front as seen in the drawing, is connected to the front portion of the seat member 1, preferabty in the front third of the seat member 1, at the hinge point 14. The hinge point 15 of the rear connecting member 10 connected to the seat member 1 is located near the hinge 2. The third connecting member 11 is connected to the back member 3 at hinge point 16. The connecting members 10, 11 are connected to the support frame 7 at the same hinge point 13. It is atso possible to make the C:\blMCO\4D7~5,APP - 8-2~g~2~
front hinge point 12 adjustable on the support frame 7 within the plane of the drawing. The connecting members 9, 10, 11 may be straps or belts or ropes or chains, wherein the length of the connecting members may be adjustable. Connecting members of this type are preferable over rigid connecting members b cause they can easily absorb changing loads. However, it is also possible to use tension springs as the connecting rnembers.
The distance of the hinge point 16 of the connecting member 11 connected to the back member 3 from the hinge 2 is approximately equal to, or preferably slightly smaller than, the distance of the hinge point 14 of the front connecting member 9 to the seat mernber 1 from the hinge 2. The length of the connecting member 11 attached to the back member 3 is only a fraction of the length of the connecting member 10 attached to the seat member 1. Thus, the connect;ng member 11 is only one-quarter to one-third as long as the connecting member 10.
The distance between the hinge points 12, 13 of the connecting members 9, 10, 11 which are fixed on the support fMme 7 is smaller than the length of the seat member 1.
The seat member 1 and the back member 3, as well as the leg rest member 4, are suspended in an articulated manner from the support frame 7 by means of the connecting members 9, 10, 11 which are constructed, for example, as belts, and whose lengths may additionally be adjustable. If the position illustrated in Fig. 1 is considered the initial position or position of rest, the components of the chair assume different positions relative to each other depending on the manner in which the user of the chair shifts his or her center of gravity, as illustrated in Figs. 2 and 3. Seat member 1 and back member 3 can be adjusted relative to each other to such an extent that they form a plane resting surface. The leg rest member 4 is always O:\MARCO\4)hU.APP
2~95~
taken along because, as illustrated in the drawing, the leg rest member 4 is hinged to the seat member 1 by means of a freely movable hinge.
It is within the scope of the present invention to provide an additional mechanism between the seat member 1 and the leg rest member 4 Çor adjusting the position of the leg rest member 4 relative to the seat member 1 and for loclcing the seat member 1 and the leg rest member 4 in the adjusted position relative to each other. It is further within the scope of the invention to entirely omit ~he leg rest member 4, as shown in Fig. S of the drawing. In addition, the connection between the leg rest member 4 and the seat member 1 may be constructed so as to be separable, so that the leg rest member 4 can be added to the chair or removed from the chair as dssired by the user.
Moreover, it is within the scope of the invention to mount a displaceable or rotatable, manually actuated locking lever in the support frame 7 for acting on the seat member 1 and/or the back member 3. Consequently, it is possible, in spite of the freely swinging support of the seat member 1 and the back member 3 in the support frame 7, to lock these components relative to their support frame. The locking mechanism may be constructed so that it can lock these components only in a single predetermined pOSitiOIl, or in such a way that the components can be locked relative to each other hl any chosen position.
In the drawing, the support frame 7 is only indicated by a broken line. It is advantageous to construct the arm rests of the support frame 7 in such a way that they are slightly resilient in the vertical plane. In this situation, the arm rests are made of bent metal rails or metal pipes, or of bent wood components.
G:\blARGO\40145.APP -10-~ ~ 8 19 ~ ~ ~
In the illustrated embodiment, the hinge points 13 or, rather, the straight line connecting the hinge points 13 and extendin~ p elpendicularly to the plane of the drawing, define the axis about which the back member 3 is pivotable. However, it is essentially also possible to reduce the length of the connecting member l l to such an extent that this al~is is located in the plane of the back member 3.
In the drawing, the seat member 1, the back member 3, and the leg rest member 4 are schematically illustrated as straight lines in order to clearly illustrate the invention.
However, in the practical application of the chair according to the present invention, these components are constructed in accordance with the standard practices of the art. Thus, the components are upholstered, covered with texti1e material or leather, and are quilted or contoured. There are no limitations with respect to the specific construction of the chair according to the present invention.
It is to be expressly pointed out in this connection that, because of the suspension of the components I, 3, 4 by means of the belt-like connecting members 9, lû, 1 1, the positions of the cornponents relative to eac'n other are not assumed automatically and are not mainhined automatically. Rather, these components assume a position relative to each other which corresponds to the position of equilibrium of the compollents. The p ositions illustrated in the drawing are only assumed if the chair is used by a person and this person reaches these positions by shifting his or her extremities or center of gravity.
In the embodiment illustrated in Fig. 4, the connecting member 10 is omitted, and the chair is suspended from the support frame 7 by means of connecting member 9 attached to the leg rest mernber 4 and the connecting member 11 attached to the back member 3.
G:\MARGO\~0745.AI'P --I 1--2Q8~
Fig. 5 of the drawing shows an embodiment in which the leg rest member 4 and the connecting member 10 are omitted.
If the connec~ing members are relatively long, as is the case in the embodiment illustrated in Fig. ~, the hinge point 12 may also be provided at a roorn ceiling or a ceiling beam, so that the chair according to !he present invention does not require a support frame, as described in connection wi~h the embodiments illustrated in Figs. 1-5. Of course, in order to be connplete, it should a]so be mentioned that the embodiment illustrated in Fig. 6 may additionally be provided with a support frame, so that the seat according to the invention is configured as a swing.
Since, as already mentioned, the components l, 3, 4, forming the chair, do not automatically assume the illustrated positions relative to each other when no load is applied, but rather would fold up into a position of equilibrium, it is possible to provide additional locking means at the hinges 2, 5 for blocking the movements of the hinges 2, 5, particularly when the chair is not in use, so that the components of the chair can assume the illustrated positions relative to each other, even if the chair is not in use. The loclcing means can be constructed such that they permit only a single predetermined angular position of the components relative to each other, or in such a way that several angular positions are freely selectable.
Fig. 7 of the drawing shows, in enlarged detail, the configuration of the hinge 16.
Freely rotatable rollers, pins, lugs 17 are mounted on the back member, and the end of the connecting member 11 is guided, in the form of a loop 18, around the rollers~ pins, lugs 17.
Experiments have shown that the chair according to the present invention is extremely comfortable when used because the components which are suspended in a swinging G:~.UARGO~40745,~PP - 12-. 208~52~S
manner automatically adapt to ach movement of the user and to each shift in the center of gravity of the user. The connecting members 9, 10, 11 which are constructed as belts can move in accordance with each load change, so that the mobility of the components relative to each other is extremely high. If, in addition, the length of the connecting members is adjustable, the user of the shair has the additional option of adjusting the relative configuration of the components of the chair as desired. For example, the length of the connecting member 11, as well as the length of the two connecting members 9, 10, can be increased or decreased, so that the initial position or position of rest of lhe components forming the chair can be freely adjusted.
It should be understood that the preferred embodiments and examples described are for illustrative purposes only and are not to be construed as limiting the scope of the present invention which is properly delineated only in the appended claims.
G:\MARGO\4074S.APp - 13-
BAÇ~G~ D OF THE INVENTION
1. Field of th~ Invention The present invention relates to a chair including a seat member and a back member, wherein the seat member and the back member are movably connecte~ to each other by means of a hinge and are supported by a support frame. To the front edge of the seat member may be connected a leg rest member in an articulated manner by means of a hinge.
The support frame supports the seat member and back rest member by means of a plurality of downwardly directed connecting members, wherein at leasi one of the connecting members is connected to the back member.
G:WMGO\40745,APP -2-2~8~
2. 12~scription of thç ~L A~
A large variety of types of chairs is known. In one type of chair, the seat member and the back member are rigidly connected ~o each other or are constructed as a single piece. In another type of chair, the back member is adjustable relative to the seat member, or the seat member and the back member are together pivotable relative to the support frame of the chair, wherein the mechanism for making the seat member and the back member adjustable in this manner is constructed such that, when the seat member and back member are adjusted, they move at differently large angles. When the members of the chair are adjustable, it is usually necessary to actuate them randomly for the adjustment.
As a rule, it is possible to distinguish between two principal types of chairs.
In the first principal type of chair, known from U.S. patents 1,96S,785, 1,885,663, 2,570,000, and European patents 214 250 and 102 546, the seat member and the back member are rigidly connected to each other, and the structural unit formed by the seat member and the back member is suspended from the support frame by means of connecting members. These connecting members may be stiff or may be chains or springs, see U.S. patents 1,B85,663 and 2,570,000. Because of the rigid connection between the seat member and the back member, these two components cannot be adjusted relative to each other, however, because of the manner in which the structural unit is suspended as described above, it is possible to impart a swinging movement to the stmctural unit.
In the second principal type of chair, the seat member and the back member are adjustable relative to each other. For example, Austrian patent 136 657 describes and shows a reclining chair which is swingably suspended between two support columns. This reclining G:\MARGO~407~S.. ~PP 3 20~2~
.
chair has a seat member, a back member, and a leg rest member, wherein these three components forming the reclining chair are connected to each other by means of hinges.
However, these components cannot move freely relative to each other because of the arrangement of a parallelogram-type control mechanism which consists of five levers, wherein one of these levers is formed by the lower portion of the back member and another lever is formed by a portion of the leg rest member. As a result, each adjustment of the back mernber also results inevitably in an adjustment of the leg rest member, and vice Yersa. This reclining chair is suspended from a support frame through two connecting members which have a common hinge point. One of the connecting members is connected to the seat member, and the other is connected to the back member. Because of the above-described configuration, a person using the reclinîng chair must adapt his or her position to the position of the leg rest member and the back member, which are positively guided relative to each other. This configuration is not considered useful.
A construction which is immediately comparable to the one disclosed in Austrian patent 136 657 is illustrated in U.S. Patent 2,254,869. In this case also, back member, seat member, and leg rest member are connected to each other by means of hinged connections, however, the movements of the components relative to each other are predetermined by a parallelogram-type control mechanism, so that the disadvantages describe~ above are also applicable to the construction of U.S. Patent 2,549,869.
Finally, U.S. Patent 2,717,630 discloses a reclining chair which is composed of several frame members, wherein the individual frame members are guided rela~ive to each other G:U-lARaO\40745.APP
2089~i2~
in such a way that the adjustment or pi~oting of one frame component inevitably results in adjustment or pivoting of the other frarne components.
G:tMARGO\4D745.Al'P S
2Q8~2~
SUMMARY OF THE INVENTION
Therefore, it is the primary object of the present invention to provide a seat of the above-describffi type which is constructed in such a way that it fully automatically adjusts itself to the position assumed by the user of the chair and, thus, provides a chair which is as comfortable as possible for the user and actually serves to relax the body of the user and does not, as is the case in all other known constructions, require that the body of the user has to adapt to the seat.
In accordance with the present invention, at least one additional connecting member is provided. The additional connecting member is connected to a fiont portion of the seat member or, if the chair has a leg rest member, the additional connecling member is connected to this leg rest member. The connecting members are straps, strings, ropes, belts, chains, or tension springs, and the length of the connecting members may be adjustable. The members connected by means of hinges, i.e., the seat member, the back member, and the leg rest member, are freely movable relative to each other.
The various features of novelty which characterize the invention are pointed out with particularity in the clairns annexed to and forming a part of the disclosure. For a better understanding of the invention, its operating advantages, and specific objects attained by its use, reference should be had to the drawing and descriptive matter in which there are illustrated and described prefelTed embodiments of the invention.
G:\MMGO~)745.~PP -6-2f389~
BRIEF DESCRIPTION Q~THE l)RAWI~
In the drawing:
Figs. 1, 2, and 3 are schematic side views of a first embodiment of a chair according to the present invention, showing three different positions of the members of the chair relative to each other;
Figs. 4, 5, and 6 are schematic side views of three additional embodiments of thc chair according to the present invention; and Fig. 7 is a partial schematic view of a hinge point of the chair according to the present invention.
. O:WAR00~40745.APP 7 208~2~
DES(~RIPrIQN OF TH~ PR~FERRED ~MBODIMENT~
The chair illustrated in Figs. 1-3 of the drawing has a seat member 1 and a back member 3 which is connected in an articulated manner to the rear edge of the seat member 1 by means of a freely movable hinge 2. In this embodiment, a leg rest member 4 is connected to the front edge of the seat member 1 also by means of a freely movable hinge 5. The lower end of the leg rest member 4 may extend to the floor 6. Small rollers or wheels, not shown, may advantageously be mounled at the bottom end of the leg rest member 4, so that the lower end of the leg rest member 4 can roll on the floor 6.
A support frame 7 is shown in the drawing by a broken line. The arc-shaped upper portion 8 of the support frame may form an arm rest or an arm rest surface.
The seat member 1 and ~he back member 3 are suspended in an articulated manner from the support frame 7 by means of comlecting members 9, 10, I l. The hinge points 12, 13 of the connecting members are fixed in relation to the support frame 7 and are preferably arranged in the region of the arm rest. All hinge points and connecting members are provided in pairs and are located perpendicularly, one behind the other, as seen in the direction of the plane of the drawing.
The connecting member 9, mounted in the front as seen in the drawing, is connected to the front portion of the seat member 1, preferabty in the front third of the seat member 1, at the hinge point 14. The hinge point 15 of the rear connecting member 10 connected to the seat member 1 is located near the hinge 2. The third connecting member 11 is connected to the back member 3 at hinge point 16. The connecting members 10, 11 are connected to the support frame 7 at the same hinge point 13. It is atso possible to make the C:\blMCO\4D7~5,APP - 8-2~g~2~
front hinge point 12 adjustable on the support frame 7 within the plane of the drawing. The connecting members 9, 10, 11 may be straps or belts or ropes or chains, wherein the length of the connecting members may be adjustable. Connecting members of this type are preferable over rigid connecting members b cause they can easily absorb changing loads. However, it is also possible to use tension springs as the connecting rnembers.
The distance of the hinge point 16 of the connecting member 11 connected to the back member 3 from the hinge 2 is approximately equal to, or preferably slightly smaller than, the distance of the hinge point 14 of the front connecting member 9 to the seat mernber 1 from the hinge 2. The length of the connecting member 11 attached to the back member 3 is only a fraction of the length of the connecting member 10 attached to the seat member 1. Thus, the connect;ng member 11 is only one-quarter to one-third as long as the connecting member 10.
The distance between the hinge points 12, 13 of the connecting members 9, 10, 11 which are fixed on the support fMme 7 is smaller than the length of the seat member 1.
The seat member 1 and the back member 3, as well as the leg rest member 4, are suspended in an articulated manner from the support frame 7 by means of the connecting members 9, 10, 11 which are constructed, for example, as belts, and whose lengths may additionally be adjustable. If the position illustrated in Fig. 1 is considered the initial position or position of rest, the components of the chair assume different positions relative to each other depending on the manner in which the user of the chair shifts his or her center of gravity, as illustrated in Figs. 2 and 3. Seat member 1 and back member 3 can be adjusted relative to each other to such an extent that they form a plane resting surface. The leg rest member 4 is always O:\MARCO\4)hU.APP
2~95~
taken along because, as illustrated in the drawing, the leg rest member 4 is hinged to the seat member 1 by means of a freely movable hinge.
It is within the scope of the present invention to provide an additional mechanism between the seat member 1 and the leg rest member 4 Çor adjusting the position of the leg rest member 4 relative to the seat member 1 and for loclcing the seat member 1 and the leg rest member 4 in the adjusted position relative to each other. It is further within the scope of the invention to entirely omit ~he leg rest member 4, as shown in Fig. S of the drawing. In addition, the connection between the leg rest member 4 and the seat member 1 may be constructed so as to be separable, so that the leg rest member 4 can be added to the chair or removed from the chair as dssired by the user.
Moreover, it is within the scope of the invention to mount a displaceable or rotatable, manually actuated locking lever in the support frame 7 for acting on the seat member 1 and/or the back member 3. Consequently, it is possible, in spite of the freely swinging support of the seat member 1 and the back member 3 in the support frame 7, to lock these components relative to their support frame. The locking mechanism may be constructed so that it can lock these components only in a single predetermined pOSitiOIl, or in such a way that the components can be locked relative to each other hl any chosen position.
In the drawing, the support frame 7 is only indicated by a broken line. It is advantageous to construct the arm rests of the support frame 7 in such a way that they are slightly resilient in the vertical plane. In this situation, the arm rests are made of bent metal rails or metal pipes, or of bent wood components.
G:\blARGO\40145.APP -10-~ ~ 8 19 ~ ~ ~
In the illustrated embodiment, the hinge points 13 or, rather, the straight line connecting the hinge points 13 and extendin~ p elpendicularly to the plane of the drawing, define the axis about which the back member 3 is pivotable. However, it is essentially also possible to reduce the length of the connecting member l l to such an extent that this al~is is located in the plane of the back member 3.
In the drawing, the seat member 1, the back member 3, and the leg rest member 4 are schematically illustrated as straight lines in order to clearly illustrate the invention.
However, in the practical application of the chair according to the present invention, these components are constructed in accordance with the standard practices of the art. Thus, the components are upholstered, covered with texti1e material or leather, and are quilted or contoured. There are no limitations with respect to the specific construction of the chair according to the present invention.
It is to be expressly pointed out in this connection that, because of the suspension of the components I, 3, 4 by means of the belt-like connecting members 9, lû, 1 1, the positions of the cornponents relative to eac'n other are not assumed automatically and are not mainhined automatically. Rather, these components assume a position relative to each other which corresponds to the position of equilibrium of the compollents. The p ositions illustrated in the drawing are only assumed if the chair is used by a person and this person reaches these positions by shifting his or her extremities or center of gravity.
In the embodiment illustrated in Fig. 4, the connecting member 10 is omitted, and the chair is suspended from the support frame 7 by means of connecting member 9 attached to the leg rest mernber 4 and the connecting member 11 attached to the back member 3.
G:\MARGO\~0745.AI'P --I 1--2Q8~
Fig. 5 of the drawing shows an embodiment in which the leg rest member 4 and the connecting member 10 are omitted.
If the connec~ing members are relatively long, as is the case in the embodiment illustrated in Fig. ~, the hinge point 12 may also be provided at a roorn ceiling or a ceiling beam, so that the chair according to !he present invention does not require a support frame, as described in connection wi~h the embodiments illustrated in Figs. 1-5. Of course, in order to be connplete, it should a]so be mentioned that the embodiment illustrated in Fig. 6 may additionally be provided with a support frame, so that the seat according to the invention is configured as a swing.
Since, as already mentioned, the components l, 3, 4, forming the chair, do not automatically assume the illustrated positions relative to each other when no load is applied, but rather would fold up into a position of equilibrium, it is possible to provide additional locking means at the hinges 2, 5 for blocking the movements of the hinges 2, 5, particularly when the chair is not in use, so that the components of the chair can assume the illustrated positions relative to each other, even if the chair is not in use. The loclcing means can be constructed such that they permit only a single predetermined angular position of the components relative to each other, or in such a way that several angular positions are freely selectable.
Fig. 7 of the drawing shows, in enlarged detail, the configuration of the hinge 16.
Freely rotatable rollers, pins, lugs 17 are mounted on the back member, and the end of the connecting member 11 is guided, in the form of a loop 18, around the rollers~ pins, lugs 17.
Experiments have shown that the chair according to the present invention is extremely comfortable when used because the components which are suspended in a swinging G:~.UARGO~40745,~PP - 12-. 208~52~S
manner automatically adapt to ach movement of the user and to each shift in the center of gravity of the user. The connecting members 9, 10, 11 which are constructed as belts can move in accordance with each load change, so that the mobility of the components relative to each other is extremely high. If, in addition, the length of the connecting members is adjustable, the user of the shair has the additional option of adjusting the relative configuration of the components of the chair as desired. For example, the length of the connecting member 11, as well as the length of the two connecting members 9, 10, can be increased or decreased, so that the initial position or position of rest of lhe components forming the chair can be freely adjusted.
It should be understood that the preferred embodiments and examples described are for illustrative purposes only and are not to be construed as limiting the scope of the present invention which is properly delineated only in the appended claims.
G:\MARGO\4074S.APp - 13-
Claims (16)
1. A chair comprising a seat member having a front edge and a rear edge, a back member attached freely movably in an articulated manner through a hinge to the rear edge of the seat member, means for supporting the seat member and the back member, and first and second connecting members connected in an articulated manner and extending downwardly from the supporting means, the connecting members having lower ends, the lower end of the first connecting member being attached in an articulated manner to the back member, and the lower end of the second connecting member being attached in an articulated manner to a portion of the seat member adjacent to the front edge of the seat member.
2. The chair according to claim 1, wherein each connecting member has a length, the length of each connecting member being adjustable.
3. The chair according to claim I, wherein an upper portion of the supporting means defines an arm rest, the connecting members being connected to the arm rest.
4. The chair according to claim 1, wherein the seat member has a length, and wherein a distance between connection points of the first and second connecting members to the supporting means is equal to or smaller than the length of the seat member.
5. The chair according to claim 1, comprising means for shifting attachment points of the lower ends.
6. The chair according to claim 1, wherein an attachment point of the first connecting member comprises rollers, the lower end of the first connecting member having a loop, the loop being guided around the rollers.
G:\MARGO\40745.APP - 14 -
G:\MARGO\40745.APP - 14 -
7. A chair comprising a seat member having a front edge and a rear edge, a back member attached freely movably in an articulated manner through a first hinge to the rear edge of the seat member, a leg rest member attached freely movably in an articulated manner through a second hinge to the front edge of the seat member, means for supporting the seat member, the back member, and the leg rest member, and first and second connecting members having upper and lower ends, the upper ends of the first and second connecting members connected in an articulated manner and extending downwardly from the supporting means, the lower end of the first connecting member being attached in an articulated manner to the back member, and the lower end of the second connecting member being attached in an articulated manner to one of the leg rest members and a portion of the seat member adjacent to the front edge of the seat member.
8. The chair according to claim 7, comprising a third connecting member having an upper and a lower end, the upper end of the third connecting member being connected in an articulated manner and extending downwardly from the supporting means, and the lower end of the third connecting member being attached in an articulated manner to the seat member between the second connecting member and the first hinge.
9. The chair according to claim 7, wherein each connecting member has a length, the length of each connecting member being adjustable.
10. The chair according to claim 8, wherein the upper ends of the first and third connecting members are connected to a common connecting point on the supporting means.
11. The chair according to claim 10, wherein the first and third connecting members each have a length, the length of the first connecting member being approximately one-quarter to one-third of the length of the third connecting member.
12. The chair according to claim 7, wherein an upper portion of the supporting means defines an arm rest, the connecting members being connected to the arm rest.
13. The chair according to claim 7, wherein the back member has an upper end, the connecting members being attached to the supporting means at a location located vertically above the upper end of the back member.
14. The chair according to claim 7, wherein the leg rest member has a bottom end, rolling members being attached to the bottom end of the leg rest member.
15. The chair according to claim 7, comprising means for shifting attachment points of the lower ends.
16. The chair according to claim 7, wherein an attachment point of the first connecting member comprises rollers, the lower end of the first connecting member having a loop, the loop being guided around the rollers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA276/92 | 1992-02-18 | ||
| AT0027692A AT397760B (en) | 1992-02-18 | 1992-02-18 | SEAT FURNITURE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2089525A1 true CA2089525A1 (en) | 1993-08-19 |
Family
ID=3486243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002089525A Abandoned CA2089525A1 (en) | 1992-02-18 | 1993-02-15 | Chair |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0561142A1 (en) |
| JP (1) | JPH05337020A (en) |
| AT (1) | AT397760B (en) |
| CA (1) | CA2089525A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103142047A (en) * | 2012-12-10 | 2013-06-12 | 张东赋 | Self-adaptive swivel chair composed of hinge four-bar mechanism |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9608012D0 (en) * | 1996-04-18 | 1996-06-19 | Samson Ilan | Reclinable seating |
| FR2859890B1 (en) * | 2003-09-24 | 2005-12-02 | Yann Paul Christian Guehria | ERGONOMIC AND RELAXING SUSPENDED SEAT SYSTEM, ADJUSTABLE, COMPLETELY AND SECURELY INCLINED, BALANCED BY THE SAME WEIGHT OF THE BODY WITHOUT MECHANISM OR CRAN |
| CA2803505A1 (en) * | 2010-07-15 | 2012-01-19 | Ekornes Asa | Chaise longue with tilting seat part |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR341242A (en) * | 1904-03-14 | 1904-08-02 | Max Cossmann | Rocking chair convertible into chaise-longue |
| US1885663A (en) * | 1932-01-16 | 1932-11-01 | Quality Mattress Company | Stabilizer for glider seats |
| US1965785A (en) * | 1932-02-05 | 1934-07-10 | Barcalo Mfg Co | Swing |
| AT136657B (en) * | 1933-02-25 | 1934-02-26 | Friedrich Troszt | Sun lounger swingably suspended between two supports. |
| US2570000A (en) * | 1948-06-12 | 1951-10-02 | Hubert E Lowry | Chair construction comprising a base and a chair frame resiliently suspended therefrom |
| US2549869A (en) * | 1950-05-24 | 1951-04-24 | Inventors Entpr Inc | Adjustable chair |
| US2717630A (en) * | 1954-06-04 | 1955-09-13 | Burnell F Dowler | Foldable reclining rocking chair |
| DE3229934C2 (en) * | 1982-08-09 | 1986-10-30 | Eduard 8591 Pullenreuth Haider | Seating or resting furniture with a pendularly suspended seating or resting area |
| DE8505160U1 (en) * | 1985-02-20 | 1986-06-19 | Haider, Eduard, 8591 Pullenreuth | Sitting or resting furniture |
| US5058951A (en) * | 1991-01-25 | 1991-10-22 | Thiel Lawrence A | Reclinable swing chair |
-
1992
- 1992-02-18 AT AT0027692A patent/AT397760B/en not_active IP Right Cessation
-
1993
- 1993-02-05 EP EP93101791A patent/EP0561142A1/en not_active Ceased
- 1993-02-15 CA CA002089525A patent/CA2089525A1/en not_active Abandoned
- 1993-02-17 JP JP5028185A patent/JPH05337020A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103142047A (en) * | 2012-12-10 | 2013-06-12 | 张东赋 | Self-adaptive swivel chair composed of hinge four-bar mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0561142A1 (en) | 1993-09-22 |
| JPH05337020A (en) | 1993-12-21 |
| AT397760B (en) | 1994-06-27 |
| ATA27692A (en) | 1993-11-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |