DE10253186B4 - folding seat - Google Patents

Abstract

folding seat (1) with a seat (2), which is bounded on both sides by a frame construction (4), with one above the seat (2) arranged tension member, the seat (2) at least in the unfolded State holds and retaining elements (6) which secure the seat surface (2) at one end in the folded state and in the unfolded state in the Keep frame construction (4) and each fixed to the frame construction (4) are arranged and each in a holding element receptacle (7) the seat (2) protrude, wherein the tension member is arranged stationary and the seat surface (2) in the folded state of height the frame construction (4) corresponds or the frame construction (4) characterized in that the holding elements (6) formed plate-shaped are.

Description

The The invention relates to a folding seat with a seat, the is bounded on both sides by a frame construction, with a above the seat arranged tension member, the seat at least in the unfolded State holds and holding elements that the seat at one end both in the folded Condition as well as in the unfolded state in the frame construction hold.

One such folding seat is, for example, by the standing / seat unit became known in the model 5000 Olympia of the company Held Großraumbestuhlungen.

at the known folding seat is one end of the seat fixed pivotally connected to a frame construction. From the swiveling spaced end is the seat with one with a backrest pivotally connected in associated tension element. The top End of the backrest is slidably mounted in the frame construction. When unfolding the Folding seat becomes the backrest moved down and slightly deflected. In the folded Condition is the backrest moved upwards in the frame construction and the free end the seat surmounted the backrest. The maximum height however, the standing / seating unit is not determined by the seat surmounting the seat back, but by the frame itself. The known floor / seat unit has So a big one Height up, so that there is a high space requirement during transport and storage.

The DE 100 20 294 A1 discloses a folding seat with a seat surface which is bounded on both sides by a frame construction, with a tension member arranged above the seat surface, which holds the seat surface in the unfolded state and holding elements, which the seat surface at one end both in the folded state and in the unfolded state in the Hold frame construction, wherein the tension member is arranged stationary and the seat in the folded state corresponds to the height of the frame construction. As holding elements of the folding seat serve stop bolts that hold the seat together with trained as a bracket tension members which are rotatably mounted at one end to the frame structure and rotatably mounted at a further end to the seat in position, in the unfolded state of the folding seat.

The DE 202 02 022 U1 also discloses a generic folding seat. The holding elements of this folding seat are designed as welded to the frame bolt and not plate-shaped.

Thereby, that the tension member is arranged stationary and that the seat in the folded state the height corresponds to the frame construction or projects beyond the frame construction, is the transport dimension of the Folding seat neither by the frame construction nor by the tension member certainly. The transport height the folding seat in the folded state is solely and solely determined by the size of the seat. Thus, a low altitude in folded state, which also corresponds to the transport state, reached. Due to the lower transport height can be specified on a truck Size more Folding seats are transported. Under local arrangement is understood that the tension member on the frame construction with a Game is kept from 5 to 10 mm. In this sense, the seat in the folded state of height the frame construction, even if the free end of the seat from the upper end of the frame construction deviates ± 5 cm.

Task of invention

task The present invention is a folding seat of the above so-called form such that a risk of injury is avoided when using it.

object the invention

at a folding seat according to the invention are the holding elements plate-shaped formed, each stationarily arranged on the frame construction and each protrude into a holding element receptacle of the seat. there is the seat essentially around the plate-shaped Retaining element pivotable. The fact that the retaining elements in the Holding element recordings protrude, the pivotal connection between Frame construction and seat be designed so that it is largely completed and not from the outside they can be accessed. The holding element holders form essentially a housing. This reduces the risk of injury to a user.

at a preferred embodiment is the tension member as a backrest educated. If additional to the seat a backrest is provided, the seating comfort is increased. A particularly light one Design of the folding seat, which is therefore particularly suitable for transport is through the use of a backrest made of textile material reached.

In one development is the backrest dimensionally stable. By a dimensionally stable backrest, the back of the user can be better supported, thereby further increasing the comfort.

If the backrest has an ergonomic shape, the folding seat is for extra comfortable, long sitting suitable.

is the backrest hinged at the free end of the frame construction, can in the upper Area of the backrest a broad contact surface for the back of the User be realized because the backrest in the upper area laterally over the frame construction can stand out. In the shoulder area of the User is the width of the backrest thus not limited by the space bounded by the frame construction.

at a particularly preferred embodiment is the backrest formed waisted. By this measure, the backrest in the folded state, pivot into the frame construction. By doing so leaves reduce the depth of the folding seat in the folded state, so that even in this dimension a small transport dimension is created.

at an advantageous embodiment is the tension member over a joint head hinged to the frame structure, wherein a Joint socket is formed on the tension member. This measure can be a pivotal connection between tension member and frame construction very easy to realize. Through the interaction of a condyle with a socket the articulated connection form so that the articulated connection not accessible to a user is. The socket represents a kind of housing for the condyle. The risk of injury for one User is reduced.

is the condyle is grasped or engaged behind by a socket section, the condyle is held securely in the socket and a Access difficult.

is the socket on the condyle can be attached and latched, On the one hand a simple assembly is ensured and on the other hand the removal of the socket from the condyle difficult. Through this measure Vandalism is prevented because individual parts of the folding seat not without Another easy to disassemble.

at a preferred embodiment is a condyle holder to which the condyle is connected, Lockable with the frame construction. It is conceivable, for example, that the condyle holder is inserted into the frame construction and there automatically locked. As a result, the assembly of the joint head to the frame construction especially easy and by the locking disassembly is considerable difficult. Vandalism is prevented.

Preferably the condyle holder is formed with two rod ends. By this measure is for the Assembly of two tension elements of adjacent folding seats only a single Rod end holder necessary. For The folding seat requires fewer parts and the assembly is easier. Furthermore can the folding seats are arranged at a small distance from each other.

Especially it is preferred if the condyle holder and the condyle or the rod ends one piece are formed. In this way, the number of components reduced during assembly of the folding seat. It also makes this a special Stable support of the joint head secured to the frame construction, there may not be any between the rod end and the condyle expectorant Connection is present.

Preferably the holding elements are substantially vertically aligned. Thereby the assembly of the folding seat is facilitated. The seat can with the holding element housings the retaining elements are attached and at the same time the socket, preferably on the backrest is formed, are plugged onto the condyle.

Especially it is preferred if provided in the holding element housing at least two contact surfaces are, wherein a first pair of contact surfaces in the folded state and a second pair of abutment surfaces in the unfolded state the seat supported on the holding element. in the unfolded state, a support of the seat is essentially at right angles to the frame construction. The holding elements take this from the seat exerted Bending moment. When folded, prevents the first pair of contact surfaces too wide collapse of the seat.

at have a development of the invention the contact surfaces and / or the respectively associated surface of the holding element a high static friction coefficient. This measure will the tensile stress in the tension member is reduced because of the high Static friction coefficient slipping the seat against the Retaining elements is prevented.

When the seat and the backrest are pivotally connected together, wherein the Swinging pivot point when unfolding from the frame construction, both backrest and seat can be ergonomically formed, whereby the seating comfort is increased.

advantageously, is a between seat and backrest acting spring element provided, which folded the seat in State holds. Furthermore is caused by the spring element that the seat in the unused State automatically collapses. This will make a passage between the rows of seats automatic released when the folding seat is not used, that is, the seat is not weight is loaded.

If the backrest and the seat nestle in the folded state, even at Ergonomic design of the backrest achieved a small depth of the folding seat in the folded state become. This reduces the transport dimension on the one hand and the other on the other hand the passage width between the rows of seats with folded seats increased.

If the frame construction Holmen has, as rectangular hollow sections are formed, the frame construction is particularly torsionally rigid, safe and protected against vandalism. The use of hollow profiles has the further advantage that the folding seat a low transport weight Has.

Further Features and advantages of the invention will become apparent from the following Description of an embodiment the invention, with reference to the figures of the drawing, the invention essential Details show, and from the claims. The individual characteristics can each individually for one or more in any combination in a variant be realized the invention.

drawing

One embodiment the folding seat according to the invention is shown in the schematic drawing and is in the following Description explained. It shows:

1 a perspective view of a folding seat according to the invention;

2a a longitudinal sectional view of the seat of 1 in folded state;

2 B a sectional view of the folding seat of 1 while unfolding;

2c a sectional view of the folding seat of 1 in unfolded state;

3a a perspective view of an upper rear portion of the backrest of the folding seat of 1 ;

3b a perspective view of a double-jointed head;

3c a perspective view of a single joint head;

4 a back view of the backrest of the folding seat of 1 in engagement with a condyle.

5 in three-dimensional representation of parts of the folding seat in different arrangements and

6 a side view of the backrest and seat of the 5 partly in section.

description of the embodiment

The Figures are shown very schematically to illustrate the essential inventive Characteristics to clarify. In the representations are the dimensions to be understood only as an example and not to scale.

1 shows a perspective view of a folding seat 1 with a seat 2 and one as a backrest 3 trained tension member. The seat 2 is pivotable at one end with a frame construction 4 connected. From the spar 5 the frame construction 4 is designed as a holding plate holding element 6 starting in a holding element holder 7 the seat 2 protrudes. The seat 2 is ergonomically shaped and has two swivel connections 8th . 9 swiveling with the backrest 3 connected. The pivot connections 8th . 9 are from the spars 5 spaced apart. The backrest 3 is also ergonomically designed. In the spar 5 is a condyle holder 10 , on which a condyle 11 is formed, locked. On the condyle 11 is the backrest 3 attached with a socket, leaving the backrest 3 with its upper end pivotable and stationary with the frame construction 4 connected is. The production of the folding seat 1 is particularly cost effective, since seat 2 and backrest 3 are made of plastic and the hinged connections are integrated into the plastic parts.

2a shows a longitudinal section through a folding seat 1 of the 1 in folded state. The ergonomically shaped seat 2 clings to the ergonomically shaped backrest 3 at. In the folded state is the pivot point 8th in the frame construction 4 ie between the frame construction 4 forming spars 5 pivoted. At the spar 5 is formed as a plate retaining element 6 attached, which in the holding element holder 7 the seat 2 protrudes. In the holding element holder 7 is a first pair of contact surfaces 12 . 13 provided in the folded position on the holding element 6 issue. Through the contact surfaces 12 . 13 will further collapse the seat 2 prevented. At the bottom of the frame construction 5 are holding means 14 . 15 arranged with which the folding seat 1 can be fixed in place. For mounting the folding seat 1 becomes the folding seat 1 in the folded state from above with the holding element holder 7 on the holding element 6 attached, wherein the retaining element 6 the seat 2 leads. The backrest 3 gets on the condyle 11 plugged until the condyle 11 with the backrest 3 locked. The holding element 6 prevents swinging of the seat 2 around the articulated connection of the backrest 3 with the frame construction 4 , The seat 2 is in the vertical direction essentially only by the backrest 3 held on the condyle 11 is pivotally mounted. The seat 2 is supported in the vertical direction on the holding element 6 only as far as, as about frictional forces between the holding element 6 and the contact surfaces is a relief of the tension member.

The 2 B shows a longitudinal section through the folding seat 1 of the 1 during the unfolding process. The seat 2 pivots with its holding element holder 7 which is a housing for the retaining element 6 represents to the holding element 6 , The seat touches 2 only with a corner 16 the holding element 6 , The pivot point 8th swings out of the frame construction 4 out. This also leads to the backrest 2 a pivoting movement around the condyle 11 by. Because the backrest 3 on the condyle 11 is stored stationary, describes the pivot point 8th during Ausklappbewegung a circular path section whose center of the condyle 11 represents. This means that with the backrest 3 pivotally connected end of the seat 2 performs a slight vertical movement. This vertical movement is made possible by the fact that the retaining element 6 not with the seat 2 is firmly connected. In the holding element holder 7 is a gap 17 formed in which the holding element 6 is arranged. A smooth movement of the seat 2 relative to the holding element 6 during the unfolding process is thus possible.

In the 2c is the folding seat 1 shown in unfolded position. The second contact surfaces 18 . 19 lie on the holding element 6 and prevent further pivoting of the seat 2 , In addition, both the second contact surfaces 18 . 19 as well as the surface of the retaining element 6 Roughened, so that due to the static friction movement of the folding seat is made difficult vertically down. About the contact surfaces 18 . 19 takes the retaining element 6 a bending moment of the seat 2 on. The resulting friction forces the tensile load in the backrest 3 reduced. In the unfolded state is the pivot point 8th further out of the frame construction 4 pivoted. This causes the ergonomically shaped backrest 3 slightly inclined to the vertical, which increases the seating comfort.

In the 3a is the upper back section of the backrest 3 shown. On the backrest 3 is a socket 20 formed, which is a joint socket section 21 has, which can engage behind a condyle. The joint socket 20 represents a housing for the condyle. The Gelenkpfannenabschnitt 21 is in one place 22 interrupted. At this point, the condyle can be in the socket 20 be introduced.

In the 3b is a condyle holder 25 shown, the two rod ends (double joint head) 26 . 27 having. To the rod ends 25 . 26 each one closes a groove 28 . 29 into which the socket portion 21 of the 3a can engage and thus the condyle 26 . 27 engages behind or embraces. The condyle holder 25 tapers towards its free end so that it can easily be inserted into a spar of the frame construction. The condyle holder is locked in the frame construction 25 by both sides mounted locking elements 30 , With the in the 3b shown double joint head can be attached to a spar two adjacent backrests.

In the 3c is a condyle holder 31 shown with a single condyle 32 (Single joint head) is connected ver. At the condyle 32 is a single gutter 34 formed, in which the joint cup portion 21 of the 3a can engage and thus the condyle 32 . 33 engages behind or embraces. The condyle holder 31 tapers towards its free end so that it can easily be inserted into a spar of the frame construction. The condyle holder is locked in the frame construction 31 by both sides mounted locking elements 35 , With the in the 3c shown single joint head, a backrest can be attached to the respective end of a frame construction. Within a frame construction, a double joint head is used in each case and at the lateral end of a frame construction of the single joint head is used.

In the 4 is one on the condyle 26 mounted backrest 3 shown. The backrest 3 is from above on the condyle 26 plugged, leaving the condyle 26 in the socket 20 is stored. The condyle 26 is over his Ge Steering head holder in the trained as a rectangular hollow profile spar 5 via its locking element 30 locked.

5 shows in the illustration with the reference numeral 51 the seat 2 and the backrest 3 a folding seat according to the invention in separate parts. Both the seat 2 as well as the backrest 3 can be made with all their formations and recesses each in a plastic injection molding process. On to the seat 2 executed end of the backrest 3 are cones on both sides 54 formed, each with a ring 55 are materially connected. The cones 54 can hold spiral or helical spring elements, which in the assembled state, the backrest 3 and the seat 2 automatically folded together.

On the seat 2 is on the backrest 3 facing a groove 56 formed, which widens from the groove bottom to the slot opening. Along the width of the seat 2 is the groove 56 through transverse cuts 57 interrupted.

The seat 2 is in its shape in the end to the backrest 3 shaped so that the backrest 3 over the cones 54 in the groove 56 can be inserted. With the reference number 52 is shown a folding seat illustration in which the backrest 3 in the groove 56 the seat 2 is inserted. Wear the cones 54 nor spring elements, so support their leg ends on the one hand on the backrest 3 and on the other hand on the seat 2 from. The spring elements are in the seat representation by the reference numeral 52 preloaded and relieved in their bias when the backrest 3 is pivoted so that a between backrest 3 and seat 2 spanning angle α reduced.

In the illustration with the reference numeral 53 is on a folding seat from backrest 3 and seat 2 the angle α with respect to the illustration with the reference numeral 52 downsized and it can be seen that the backrest 3 with the seat 2 articulated is connected.

With the reference numerals 51 to 53 be the assembly of the folding seat according to the invention, consisting of backrest 3 and seat 2 , shown. No additional components are necessary for the construction of the folding seat and overlap molding sections 58 the backrest 3 when pivoting the backrest 3 opposite the seat 2 the curved groove bottom on the outer surface 59 , so creates a lock between the seat 2 and backrest 3 that on the one hand ensures that the seat surface 2 with the backrest 3 is held together captive, as long as the angle α = 90 is not significantly overlapped, and on the other hand leaves the seat 2 around the backrest 3 pivot. The created folding construction is safe against vandalism and yet simple and constructed under cost-effective manufacturing considerations.

6 shows the structure of the folding seat in a side view. With the reference number 61 is a backrest 3 shown in the illustration with the reference numeral 62 in the groove 56 the seat 2 is inserted. About the cones 54 lies the backrest 3 rotatable in the groove 56 , Spread over the molding sections 58 the groove 56 from the outside and the pins 54 lie in the groove 56 on the groove base, so is a lock between the seat 2 and backrest 3 produced.

The in the 5 and 6 shown features for the construction of the folding seat according to the invention are claimed alone as an independent invention.

In a folding seat 1 with a seat 2 passing through a frame construction 4 is limited on both sides, with one above the seat 2 arranged tension member, which is the seat 2 holds at least in the unfolded state and holding elements 6 that the seat 2 at one end both in the folded state and in the unfolded state in the frame construction 4 hold, the tension member is arranged stationary and the seat 2 corresponds in the folded state of the height of the frame construction 4 or surpasses the frame construction 4 , With the folding seat according to the invention 1 can be a particularly low transport dimension of the folding seat 1 be achieved.

Claims (22)

Folding seat ( 1 ) with a seat ( 2 ) by a frame construction ( 4 ) is bounded on both sides, with one above the seat ( 2 ) arranged tension member, the seat ( 2 ) holds at least in the unfolded state and retaining elements ( 6 ), the seat ( 2 ) at one end both in the folded state and in the unfolded state in the frame construction ( 4 ) and each fixed to the frame construction ( 4 ) are arranged and in each case in a holding element receptacle ( 7 ) of the seat ( 2 ) protrude, wherein the tension member is arranged stationary and the seat ( 2 ) in the folded state of the height of the frame construction ( 4 ) or the frame construction ( 4 ) surmounted, characterized in that the holding elements ( 6 ) are plate-shaped. Folding seat according to claim 1, characterized in that the holding elements ( 6 ) in essence vertically aligned. Folding seat according to claim 1 or 2, characterized in that in the holding element receptacle ( 7 ) at least two contact surfaces are provided, wherein a first pair of contact surfaces ( 12 . 13 ) in the folded state and a second pair of contact surfaces ( 18 . 19 ) in the unfolded state, the seat surface ( 2 ) on the retaining element ( 6 ) is supported. Folding seat according to claim 3, characterized in that the contact surfaces ( 12 . 13 . 18 . 19 ) and / or the respectively associated surface of the holding element ( 6 ) have a high static friction coefficient. Folding seat according to one of the preceding claims, characterized in that the tension member as a backrest ( 3 ) is trained. Folding seat according to claim 5, characterized in that the tension member as a backrest ( 3 ) is dimensionally stable. Folding seat according to claim 6, characterized in that the backrest ( 3 ) has an ergonomic shape. Folding seat according to one of claims 5 to 7, characterized in that the backrest ( 3 ) at the free end of the frame construction ( 4 ) is articulated. Folding seat according to one of claims 5 to 8, characterized in that the backrest ( 4 ) is formed waisted. Folding seat according to one of the preceding claims, characterized in that the tension member via a joint head ( 11 . 26 . 27 . 32 . 33 ) on the frame construction ( 4 ), wherein a joint socket ( 20 ) is formed on the tension member. Folding seat according to claim 10, characterized in that the condyle ( 11 . 26 . 27 . 32 . 33 ) from a joint socket section ( 21 ) is behind and / or embraced. Folding seat according to claim 10 or 11, characterized in that the joint socket ( 20 ) on the condyle ( 11 . 26 . 27 . 32 . 33 ) can be plugged and / or latched. Folding seat according to one of claims 10 to 12, characterized in that a joint head mount ( 10 . 25 . 31 ), with which the condyle ( 11 . 26 . 27 . 32 . 33 ), with the frame construction ( 4 ) is latched. Folding seat according to claim 13, characterized in that the condyle holder ( 10 . 25 . 31 ) with two rod ends ( 11 . 26 . 27 . 32 . 33 ) is trained. Folding seat according to one of claims 13 or 14, characterized in that the condyle holder ( 10 . 25 . 31 ) and the condyle or rod ends ( 11 . 26 . 27 . 32 . 33 ) are integrally formed. Folding seat according to one of claims 5 to 15, characterized in that the seat surface ( 2 ) and the backrest ( 3 ) are pivotally connected to each other, wherein the pivot point ( 8th . 9 ) when unfolding from the frame construction ( 4 ) swings out. Folding seat according to one of claims 5 to 16, characterized in that a between seat ( 2 ) and backrest ( 3 ) acting spring element is provided, the seat ( 2 ) holds in the folded state. Folding seat according to one of claims 5 to 17, characterized in that the backrest ( 3 ) and the seat ( 2 ) Cling together in the folded state. Folding seat according to one of the preceding claims, characterized in that the frame construction Holmen ( 5 ), which are formed as rectangular hollow profiles. Folding seat according to one of claims 1 to 19, characterized in that the seat surface ( 2 ) and the backrest ( 3 ) each independently or simultaneously with all the formations used to assemble the seat ( 2 ) and backrest ( 3 ) are required, are manufactured in a single injection process as plastic parts. Folding seat according to claim 20, characterized in that on the backrest ( 3 ) Pins ( 54 ) and formations ( 58 ) are formed in the assembled state of the backrest ( 3 ) and seat ( 2 ) a groove ( 56 ) from both inside and outside. Folding seat according to claim 21, characterized in that the pins ( 54 ) are suitable for receiving spring elements.