WO2011103852A2

WO2011103852A2 - Support element

Info

Publication number: WO2011103852A2
Application number: PCT/DE2011/000097
Authority: WO
Inventors: Dieter Mankau
Original assignee: Dieter Mankau
Priority date: 2010-02-24
Filing date: 2011-02-03
Publication date: 2011-09-01
Also published as: EP2538821B1; WO2011103852A3; DE102010009025A1; EP2538821A2

Abstract

The support element is designed for dynamic loads which occur, for example, in the case of supports which are used in textile architecture or in the case of use in slatted bases for beds and furniture for sitting or lying on. The support element is adjustable in its pressure point elastic spring action. Between the end blocks (4, 5) are arranged a spring element (1) and a spring tensioning element (2) which are capable of being deflected at least in an axial direction. The spring tensioning element (2) is tensioned with adjustable pretensioning and has at its end sections (10, 11) limit stops (12, 13) which are each supported on the mutually opposite inner sides of the end blocks (4a, 5a).

Description

description

support element

The invention relates to a new, pressure-point elastic carrier element, which is e.g. can be used as a carrier in lightweight buildings, bridges or slatted frames for beds, sitting or lying furniture. In the European patent "EP0974294 Bl" and in the German patent

"DE 19832689" describes a spring element which can be adjusted simply and precisely in terms of hardness and which is intended to be used predominantly in bedsteads of beds and office work chairs. Chain elements are arranged on an upper flange in such a way that the

Chain elements in the longitudinal direction abut each other and about pivot axes which extend transversely to the longitudinal direction and transverse to the first transverse direction, are pivotable relative to each other. A flexible tensioning element which is guided below the chain elements and rests against them, penetrates the end blocks in which an adjusting mechanism is housed with spring, with which the bias of the spring element can be adjusted.

The disadvantage of this design is that under load, the overall load of the system in the form of a high tensile load for the clamping element. The

Clamping element must have a high suppleness in this proposed solution, so that it can create in this position in any position the chain elements occupy. The formation of the clamping element in the form of a flat spring, which could absorb a portion of the supplied energy is not provided here. At a constant, dynamic load arise on the support side of the chain elements and that at the point where the chain elements deflect, high frictional forces between the clamping element and the

Chain element. These constant frictional forces on the chain element and the clamping element lead to premature wear and long-term destruction of the construction.

The invention is therefore based on the object to provide a modular support element also available for dynamic loads available with fewer components, by which the tensile load on the clamping element is significantly reduced and thus no excessive, design-related wear of individual modules occur.

According to the invention the object is achieved in that not only the spring element but also the spring tensioning element as Einfeldträger, similar static properties with

corresponding spring action as the spring element has. The spring element and the

Federspannelement can according to their task, a divergent

Replacement Blade (RULE 26) Have spring action and rigidity. The spring element is fixed at its ends with the

Connected end blocks. The spring tensioning element is supported by its two am

Spring tension element existing limit stops on the inside of the end blocks and protrudes with its end portions in the biasing device in the two end blocks where the spring tensioning element is tensioned by means of compression spring and adjusting device to train. In an upper-side load of the spring element, this is in the direction of

Federspann element deflected and transmitted through the spacer element on the spring tensioning element.

The deflection depth of the spring element with its predetermined spring action is controlled by the hardness of the compression spring, the selected hardness setting and the specified spring stiffness of the Federspannelementes and the support element inserted between the spring element and the spring tensioning element or the corresponding springs with the respective spring rate. The spring tensioning element is a spring strip and at the same time a tension element. As a result, the tensile load caused by the action of load on the carrier element, can be significantly reduced.

When using the support element in a bed as a so-called slatted frame, the spring tensioning element should be chosen harder against the spring element in its spring effect to softer deflection or optimal pressure point elastic sinking depth of the

Spring element on which the mattress is located. As a result, it is possible to specifically address the mattress types used to achieve the greatest possible comfort. In this application it is possible to use e.g. by a plurality of ring-shaped molded plastic springs or by a continuous, permanently elastic

Flexible foam block, which is fixedly arranged between the spring element and the spring tensioning element, e.g. by vulcanization or gluing, the required pressure point elasticity of the spring element is achieved. If the carrier element is designed for fixed load values, it is possible for the supporting elements to be designed as a compression spring, thereby achieving greater deflection of the spring element relative to the spring tensioning element. If more than one support element is used, the Federspannelemenf should be guided by guides or holes in the individual support elements or the support elements should be firmly connected to the spring element and the spring charging element. In this case, the support elements in the connection region of the spring element and the spring clamping element in the function each have a film hinge or pivot bearing to the in

Replacement Blade (RULE 26) Use occurring transverse displacements between the spring element and the

Follow spring tensioning element.

With frequently changing comfort demands, e.g. in a care bed or car seat there is the possibility controllable, pneumatic actuators between the spring element and the

To arrange spring tensioning element and to vary the filling pressure via appropriate control and regulating devices and thus the deflection depth and the pressure point elasticity of the

Determine spring element. The use of a form-fitting, used between the Federelenient and the Federspannelement, tubular formed, pneumatic actuator, when he stuck with the spring span! ement supplied side of the spring element and fixed to the spring element zugewanden side of the spring tensioning element is connected to the context of action, which is achieved with the use of permanently elastic soft foam.

This application is advantageous, e.g. when used in nursing beds or

Hospital beds, where from a medical point of view, different and changeable

Profile requirement with regard to the pressure point elasticity and support hardness for the lower bed alone consist of the different occupancy of the bed. The use of permanently elastic soft foam makes sense in a privately used bed, since it can be determined in advance which density or which pressure hardness the foam must have in the individual support elements in order to form different comfort zones in a lower bed. However, this application requires that the spring tensioning element must be designed to be significantly harder than the spring element in its basic hardness as the spring element which should have a low spring tension, but very high pressure point elasticity. The spring characteristic of the compression spring, which holds the spring tensioning element to tensile stress, must be set individually for all applications according to the task.

In special cases, such as the application of the carrier element as a bridge element with high pressure load, the spring tensioning element is used only in its function as a spring element. About an additional traction cable or drawstring which is connected with its end portions with the compression spring in the biasing device, the hardness and associated with the deflection depth of the spring element is controlled. There are corresponding limit stops and Fülirungen on Federspannelement available, which are used in guide receptacles which are present on the two end blocks. For extremely long versions of the

Carrier element there is the possibility that the spring tensioning element is divided in length one or more times and that at the end points of the individual spring clamping elements

corresponding limit stops and guides are present, both in the

Replacement Blade (RULE 26) Guide shots of the two end blocks as well as in the corresponding guide receptacles in the support elements can be used. To achieve optimum spring action of the spring tensioning element, a largely play-free guidance is necessary and the corresponding use of self-lubricating guide bearings is required.

If the carrier element is e.g. is to be used for car seats, the spring tensioning element can be formed of a plurality of arms which form from a common base and each have their own end blocks with the corresponding biasing devices. The spring element should have a directionally neutral or a defined pressure point elastic surface structure by means of corresponding recesses in the surface. For the use of the carrier element in a car seat a basic hardness preset for persons with a body weight of about 35kg is provided. With the pre-tensioning device, the seat hardness of heavier persons is set manually or electromechanically beyond this value. With the additional use of pneumatic actuators, which are arranged between the spring element and the spring tensioning element and a simple control and regulating software, a finely tuned seating comfort for different seat and motion profiles can be realized. If the pneumatic actuator additionally filled with open-cell foam, which has the appropriate pressure, filled, you can realize a certain basic seating comfort regardless of a pressurization of the actuator. If an open-pored foam with high viscoelasticity is used, the actuator gets an additional damping function.

In addition, with pressure sensors, which are arranged in the pneumatic actuators, individual personal pressure profiles are determined, which makes sense for a changing occupancy of the seat with different people. The internal pressure in the actuators is controlled via control and regulating systems, the necessary air pressure quantities being supplied by different technical compressed air generating systems, such as e.g. one

Membrane compressor can be provided.

In vehicles with low suspension comfort, such as in construction machines or tractors is preferably the carrier element with two spring elements above and below the

Federspann element arranged are provided. The support of the support element can

Optionally on the support side of the end blocks by springs with e.g. integrated dampers and centrally on the support side on the lower spring element, or only centrally under the spring element. Advantageous is the use of pneumatic actuators with damping properties or the use of the support elements with integrated dampers. Optionally, the pneumatic actuators or the support elements in a different number and combination

Replacement Blade (RULE 26) only be arranged above the spring tensioning element between the spring tensioning element and spring element or additionally below the spring tensioning element between spring tensioning element and spring element. When using the support element as a backrest, for example, in a vehicle seat or office chair is preferably a manual, pneumatic or electrical, variable in length, support member, preferably with damping function in the lordosis, provided. The support element may be in height with respect to the backrest, through

Guides, which are mounted either on the spring element or the spring tensioning element or both, are moved. This height adjustment is important for comfort, as the lumbar region must be optimally adjusted for people of different sizes. Depending on the version, this height adjustment can be done manually or electromechanically. The basic principle of this solution considered in the seating area can also be used as a lightweight construction concept for supporting systems, e.g. be used in backpacks or satchels. It makes sense

Use of a wide, bulging spring element in the back area with two

Spring clamping elements.

A safety-optimal solution in the car seat is a firm connection of headrest with the spring element which forms the backrest, or with the spring tensioning element in order to reduce the so-called whiplash in Auffahranfällen. In a collision from behind the person is pressed into the backrest and by the deformation of the

Spring element is automatically the headrest forward so that a large deflection of the head to the rear is prevented early. In this technical solution, a height adjustment of the headrest for different people continues to exist. In order to avoid any disadvantage in other accident situations, too much rearward movement of the headrest should be prevented by a mechanical restriction, such as a head restraint. a Zugbandbegrenzung, which has Dämpfungseigenschäften advantageous and between

Spring element and rear back shell cover is used can be prevented. In a functional module which is formed from a plurality of carrier elements or from a spring element with a plurality of spring clamping elements and the adaptively acting

Pressure distribution structures required in the spring element, the bias can be adjusted via a common, central bias unit, which takes place in special applications via electromechanical or pneumatic actuators. This functional connection of the individual spring biasing elements can e.g. by roll-guided wire rope connections,

Bowden cables or hydraulic connections are made.

Replacement Blade (RULE 26) Embodiments of the invention will be described below with reference to FIGS

attached drawings described in more detail. 1 is a side view of the carrier element with a centrally between the

Spring element and the spring tensioning element arranged supporting element, which is fixedly connected to one side with the spring element and with the side facing away from on the

Spring tensioning element rests, which on the left and right support side in the

Pretensioning the end blocks is performed.

Fig. 2 is a side view of the carrier element with a centrally between the

Spring element and the spring tensioning element arranged supporting element, which is connected to one side fixed to the spring element and on the side facing away from it has an opening through which the spring tensioning element is guided.

Fig. 3 is a side view of the carrier element with a centrally between the

Spring element and the spring tensioning element arranged supporting element, which is fixedly connected to one side with the spring element and on the side thereof deviated has an opening through which the spring tensioning element is guided and two arranged laterally therefrom

Supporting elements, which are connected to one side fixed to the spring element and rest with the side facing away from it on the spring tensioning element.

Fig. 4 shows a simplified longitudinal section through an end block, as a

Aufsteckschuh is formed, comprising the spring element at the ends and forms the receiving space for the Vorsparmeinrichtung in which a compression spring is used made of elastomer, which has on one side formations which are arranged as a support for the limit stops, which are arranged on the spring tensioning element, and for damping from the linear occurring

Push movements serve. Fig. 5 shows a simplified longitudinal section through a support element with inserted sliding guides for receiving the Federspannelements.

Fig. 6 is a side view of the support member with a centrally disposed between the end blocks support member, between the spring element and the spring tension element as

Replacement Blade (RULE 26) an oval shaped spring fixed to the inner side of the spring element and the

Spring tensioning element is connected.

Fig. 7 is a side view of the carrier element with a plurality of oval-shaped springs, which are arranged between the spring element and spring tensioning element and are fixedly connected to the inner side of the spring element and the spring tensioning element.

Fig. 8 is a side view of the carrier element with a centrally between the

Spring element and the spring tensioning element arranged supporting element, which is designed as a pneumatic actuator with two chambers and fixed to the inner side of the

Spring element and the spring tensioning element is connected.

Fig. 9 is a side view of the carrier element with a centrally between two

Spring elements arranged spring tension element, wherein both spring element and spring tensioning element are received by the end blocks, and an oval shaped spring, which is arranged centrally between the end blocks and between the upper spring element and the spring tensioning element, and a support side for the support element, which is centrally below the lower Spring element is and two other springs under the left and right bearing side of the end blocks.

10 is a side view of the carrier element with extending in the longitudinal direction trapetzförmig shaped spring fixed to the inner side of the spring element and the

Spring tensioning element is connected. Fig. 1 1 is a transverse view in a simplified representation with a centrally arranged

Spring element and a left and right next to the middle spring element arranged spring elements by spring arms, which laterally on the support elements and the

End blocks are to be worn. Fig. 12 is a transverse view in a simplified representation with profiled, wide spring element.

13 shows a detail of a plan view of FIG. 12 with a profiled, wide spring element which has a wing-like segmentation.

Replacement Blade (RULE 26) Fig. 14 is a simplified representation of a bottom view of a carrier dementes, consisting of a spring element with rectangular blank and openings in the surface for optimized pressure point elasticity, and four of a common base spring-forming elements formed with their ends in the biasing devices of the end blocks, the are firmly connected to the support elements, are guided.

Fig. 15 is a simplified representation of a section through an end portion of a

Federspannelementes with a round cross-section on which a component with limit stop and thread for the pressure adjustment plugged and glued or pressed with this, or molded onto the spring element component made of glass fiber reinforced plastic.

Fig. 16 is a simplified representation of a backrest seat for a car seat with a spring element which forms the backrest and two vertically extending Federspannelementen arranged in the lower region biasing means and a spring element attached to the headrest and a displaceable on the Federspannelement pneumatic actuator for lumbar adjustment.

17 is a simplified representation of FIG. 16 as a side view. FIG. 18 is a side view of the carrier element with a centrally between the

Spring element and the spring tensioning element arranged supporting element as the oval-shaped spring fixed to the inner side of the spring element and the

Federspannelement is connected, which is mounted in the left and right of the Federspannelement existing guides in the Führungsaufnahmelagern the end blocks, and a tension element which extends below the spring tensioning element and at the ends in the

Biasing device is guided.

19 is a simple sectional view of the end block with a guide receiving bearing on which the spring tensioning element is inserted guide and extending below the spring tensioning element tension element, which is provided with a molded plastic part for receiving the compression spring and its hardness adjustment in the biasing device, and a pneumatic Actuator under the support side of the end block for lifting and lowering the support element.

In Fig.l a support member is shown in the middle between the end blocks 4 and 5, a support member 3 is fixedly connected to the concave spring element 1 and with his

Replacement Blade (RULE 26) opposite side rests on the spring tension element 2. At a pressure load of the spring element 1 on its pressure load side 40 and the corresponding deflection is deflected by the support member 3, the spring tension element 2 with. By the

Deflection movement of the spring element 1, the distance between the end blocks 4 and 5 is slightly increased to reach an approximate line. The deflection movement of the

Federspannelementes 2, however, leads to shorten the distance between the

Limit stops 12 and 13 when a straight connection between the

Limit stops 12 and 13 is adopted. This by shortening (spring element 1) and train (spring tensioning element 2) resulting line shortenings are by a compression spring 15,16 which are located in the region of the end portions 10 and 1 1 of the spring tensioning element 2 and within the end blocks 4 and 5, respectively.

At a defined spring rate with preferably progressive spring characteristic and a

specified use e.g. the use of the support element in a bed as a slatted base with a fixed mattress type, the degree of hardness of individual support elements can be specified on the production side. In this case, the use of elastomeric springs is e.g. made of PUR or MCU. A manual adjustment of the degrees of hardness is useful if the bed in its comfort areas must be adapted to different mattress types and the requirements of specific users.

In Fig.2 a support member is shown in the center between the end blocks 4 and 5, a support member 3a is fixedly connected to the concave spring element 1 and which is provided with an opening in its opposite side by the

Spring tensioning element 2 is guided. This embodiment is advantageous if a plurality of supporting elements 3a are used. FIG. 3 shows a carrier element which is equipped with a support element 3a and two support elements 3 arranged laterally therefrom.

In Fig. 4 shows an example of how a connection of the end blocks 4 and 5 with the

Spring element 1, when e.g. from semi-finished products such as plywood, composite materials or from

Plastic plates is, is considered. The end blocks 4 and 5, in the areas where they must be firmly connected to the spring element 1 as a clip designed as a slip-on shoe 30 which receive the ends of the spring element 31 and 32. Thus, the slip-on shoe 30 does not bends under load, it has in the middle between the upper and lower wall which forms the insertion opening for the spring element 1, in the longitudinal direction 9 of the

Replacement Blade (RULE 26) Spring element 1 a wide connecting web and the spring element 1 has a corresponding recess centrally at its ends 31 and 32nd

When the support member is subjected to a constant dynamic load, between the limit stops 12 and 13 and the abutment side for the limit stops 12 and 13 at the end blocks 4 and 5, a damping disk made of elastomer or rubber is used. The spring tensioning element 2 must be selected in all applications in its spring rate so that it has resilient properties and is pressure-resistant in the longitudinal direction.

This makes it possible in any load situation of its static task, a

Compression component, which is exposed to the carrier element to take with, correspond. In the most common cases, there is a fixed positioning and attachment of the

Limit stops 12 and 13 on the spring tensioning element 2. In special cases, such as e.g. When used as a support element in the architectural field or as a bridge element, there may be a variable positioning of the limit stops 12 and 13 on the longitudinal axis 9 of the spring tensioning element to control over it the curvature of the spring element and correct. The limit stops 12 and 13 could as adjusting nut with

Be formed internal thread and a thread, which is located in the end portions 10 and 1 1 of the spring tensioning element 2, are adjusted. FIG. 5 shows a shape of a slide bushing 19 in the support element 3a, which is latched into the support element 3a and has a convex course in its guide opening for the spring tensioning element 2, so that the spring tensioning element 2 is not influenced in its bending position in each deflection position. FIG. 6 shows a support element which, instead of a rigid support element 3 and 3a, uses a flexible support element 3b designed as a spring. This application is advantageous when the spring element 1 is softer in its spring stiffness, e.g. a bigger one

Spring flexibility must have as for example in the requirements in the product range bed slatted. If a plurality of springs 24 are used, they can be configured significantly lower in their spring stiffness than the spring stiffness of the support element 3b in FIG. 6. Your task is primarily to allow a high pressure point elasticity of the spring element 1, which may be even softer in this application in its spring stiffness than in a use of the support element 3b. The spring 24 may advantageously be formed from a flexible foam in this context if it extends spatially and cohesively over the entire length of the end block 4 to the end block 5 and fixed to the spring element 1 and

Replacement Blade (RULE 26) the spring tensioning element 2 is connected. By choosing the density of the space and the pressure hardness of the foam, an optimal, sensitive pressure point elasticity of the spring element 1 can be achieved. Prerequisite is a hardness between the spring hardness of

Spring element 1, the spring tensioning element 2 and the spring characteristic of the compression spring 15 in the biasing device. In this application, the spring element 1 should be at least as wide as the spring tensioning element 2, which must be selected in its width so that the spring 24 made of soft foam, according to the predetermined density and spring hardness, can be mounted on a wide enough support so that It can optimally fulfill its function in its entire width.

If an adjustable and in the hardness variable pressure point elasticity of the spring element 1 are possible, pneumatic actuators are provided as springs 22, which are used individually or form a contiguous, pneumatic spring 24, which corresponds in their mode of action of the spring 24, made of soft foam, wemi them spatially, fortification and additionally filled in its shell with open-pore foam. This allows adjustable as well as variable pressure point elastic profiles to be realized, which are pressure-compensating, adaptive. This application is primarily intended for use in the nursing home and car seat product sector, as it provides the corresponding need for individually modifiable and adaptable comfort zones.

In Figure 9, a support member is shown, which consists of a spring tensioning element 2 and two spring elements lund l a. The support side 8 is mounted centrally under the spring element la so that the spring element 1 a can act as an additional spring. In order to ensure a better tipping stability, springs 34 and 35 may additionally be attached to the end blocks 4 and 5, which are preferably designed as dampers. This application is for

Carrier elements provided in addition to the necessary pressure point elasticity for sitting a high inherent resilience and Dämfpung. when needed in a tractor seat. In Fig.10 a support member is shown, which has a contiguous, trapetzförmige shaped spring 33 which is mechanically connected at its upper and lower ends with the Federelemeni 1 and the spring biasing member 2. Spring element 1, spring tension element 2 and spring 33 are created in this illustration as separate parts and can be formed of different materials.

Replacement Blade (RULE 26) The carrier elements shown in Fig. 6,7 and 10 can be easily prepared from a single injection molded plastic part. About the cross-sectional shape, the shape and width of the spring element 1 and spring tensioning element 2, on the number and shape of the springs 24, and the distance curve 17 and the characteristic of the compression spring 5, taking into account the type of plastic used with any glass fiber content, is a mass production of individual support elements, which form a bed slatted frame with high comfort for the private sector, cost-effective to realize. In this implementation variant, the

Compression spring 15 and necessary for the hardness adjustment items later in the

Plastic part used. Spring elements with mounting options for attaching the support elements on the bed frame lying on the support side 6 and 7 below the end blocks 4 and 5 can be added as required as individual springs subsequently to the end blocks 4 and 5 or are already in an injection molding with the remaining parts , which form the carrier element produced.

In Fig.1 1 an embodiment for the carrier element is shown, which consists of a central

arranged carrier element, on the left and right, parallel in the longitudinal direction 9, two further spring elements 1 b and l c in the same height and course as the spring element 1, are arranged. By these spring arms 36 and 37 on the end blocks 4 and 5 and on the support elements 3 and 3a, the deflection values given in the spring element 1 in

Transposed longitudinal direction 9 to the spring elements l b and lc. This construction concept for the

Carrier element allows a broad design of the support element with in addition each own deflection of the spring elements lb and lc in the transverse direction.

12 and 13, a support element is shown, which consists of a wide spring element 1, which has wing-like elements which deflect resiliently in the transverse direction to the longitudinal direction 9 when pressure is applied.

In Fig. 14, a support member for a seat is shown, which is formed of Einzelarmabschnitten having a common base 38 and the spring biasing members 21, 21 b, 21 c and 21 a. At the vertices of the spring element 1, the end blocks 4a, 4b, 4c and 4, which are the

Pick up biasing device attached. In the surface of the spring element are

Breakthroughs 39 arranged such that e.g. the pressure peaks that would arise when sitting without Durchsprche 39 in the buttocks area, can not occur. In this solution shown for a seat substructure with a plurality of spring clamping elements 21, 21 a, 21 b and 21 c and the associated, individual biasing means which are attached to the vertices of the spring element 1, it is possible, the hardness of the spring element 1 no longer individually, but over a

Replacement Blade (RULE 26) to set central pretensioner. Different solutions for Sitzu terbauten be realized by the use of individual support elements, which are arranged in pairs or individually in the longitudinal or transverse direction. In this case, these arrangements can also be made solely by the spring tensioning elements 2 on a large spring element 1.

In Fig. 15, the end portion 10 and 1 3 on the spring tensioning element as a single part, which is attached to the spring tensioning element shown. Depending on the requirements, this can consist of steel, aluminum or plastic. 16 and 17 shows a backrest construction with two arranged in parallel

Spring tensioning elements 2 which extend vertically and a spring element 1 as a backrest. The headrest can be slidably mounted either on the spring element 1 or the spring tensioning element 2 in height. With the pneumatic spring 22 as an actuator is in

Lumbar area adjusted the backrest to the user. It is manually or electromechanically adjustable in the backrest height. The total hardness adjustment of the backrest is provided with manual or elektromechani see known solutions. The carrier element is located in a stable back seat shell and is supported with its support side 6 and 7 at this. For chairs that are used without individual lordosis adjustment, but with specified values for the lumbar region, it is more advantageous that one or more support elements or only the spring clamping elements 2, are arranged horizontally on a backrest.

Fig. 18 shows a carrier element with additional tension element 27. With this embodiment especially long and by weather conditions such as strong wind and snow loads highly resilient, and adaptively responsive carrier elements, e.g. for building roofs whose outer skin is made of textile materials. The number of supporting elements 3, 3a and 3b or the springs 24 and 33 to be used depends primarily on the

Material choice with the appropriate spring design for the spring element 1 and the

Spring tensioning element 2 from. When using flexible sprayed concrete with

Fiber shares or concrete with metal fiber components for the spring element 1 and the

Federspannelement 2 is the use of a plurality of supporting elements 3,3a and 3b or the springs 24 and 33 necessary to counteract a possible risk of breakage of the spring element 1 and the spring tension element 2. In special cases, these girder elements can be equipped with pneumatic actuators, which are equipped with a corresponding control and control unit

Control technology can be controlled so that different load types, e.g. can also lead to vibrations of the carrier system, can be counteracted.

Replacement Blade (RULE 26) An advantage for this application is when the pneumatic actuators already with a

Basic damping function are equipped.

FIG. 19 shows by way of example how the connection of the spring tension element 2 with its end section 10 of its guide 25 into the guide receptacle 26 takes place on the end element 4 for the carrier element with a low dynamic load. For support elements with high dynamic load, it is necessary that the guide receptacle by a

self-lubricating plain bearing bush or corresponding roller bearings is formed. For special applications it is provided that the carrier element with its bearing sides 6 and 7 at the end blocks 4 and 5, by lifting devices such. can be changed by a pneumatic actuator 20 in the run length. For the height adjustment of heavy support elements on its bearing sides 6 and 7 mechanical, electro-mechanical or hydraulic systems are provided. In Fig. 19 is attached to the tension member 27 at its ends 28 and 29, a threaded member which receives a compression spring 15 to a via

Screw to adjust the hardness of the support element. The tension element 27 with its ends 28 and 29 is at high dynamic load in guide shots with

guided self-lubricating bearings. All described embodiments of

Have support element with hardness adjustment. at the end blocks 4 and 5

Guide receptacles for the spring tensioning element 2, sodas a twisting of the

Federspannelernentes 2 is excluded.

In the most common applications, it is provided that the hardness adjustment of

Carrier element only via a biasing device either in the end block 4 or 5 takes place. Depending on the version, the biasing device is formed with one compression spring 15 in the end blocks 4 and 5 or only one compression spring 15 which can be located either in the end block 4 or in the end block 5. In this application, the spring tensioning element 2 with a

End portion 10 or 1 1 fixed to an end block 4 or 5 connected.

Replacement Blade (RULE 26)

Claims

claims

1. A supported on at least one support side (6,7,8,), in the longitudinal direction (9) at least one strip-shaped, in at least one transverse direction in his

Spring action adjustable support element, which its pressure point elastic

Is predetermined spring action on the production side, and or its spring action is variably adjustable, characterized in that between the end blocks (4,5) at least one spring element (1) and at least one spring biasing element (2), which are deflectable at least in one axial direction, the

Spring tensioning element (2) is tensioned with adjustable pretension on train and at its end portions (10,11) has limit stops (12,13) which are respectively supported on the opposite inner sides of the end blocks (4a, 5a).

2. Carrier element according to claim 1, characterized in that at least one

Supporting element (3) with one side on the spring element (1) and with the

opposite side of the spring tensioning element (2) is fixed and or only on the said spring tensioning element (2) zugewanden inside of the spring element (1) or on the said spring element (1) zugewanden inside of the spring tensioning element (2) between the end blocks (4,5) fixed and or slidably disposed.

3. Carrier element according to one of the preceding claims, characterized in that the spring tensioning element (2) is formed of a resilient rod or bar with a predominantly rectangular cross-section, which penetrates the end blocks (4,5) which receive the biasing means, and special formations

(14) for receiving a compression spring and / or tension spring (15,16) and for the adjustable bias of the spring element (1), by known technical solutions such as threaded nut adjustments, grid, different thickness spacers or in special cases via an electromechanical

Activation happens.

4. Carrier element according to claim 1, characterized in that the spring element (1) and the spring tensioning element (2) in the longitudinal direction between the end blocks

(4,5) resiliently deflectable, but in the longitudinal direction (9) is pressure-resistant and that it out

Replacement Blade (RULE 26) different profiles that have different cross-sectional profiles in the longitudinal direction can be formed and the distance and

Distance course (1 7) between the spring element (1) and the spring tensioning element (2) according to the place of use and the materials used and the associated static requirements may vary and the spring element (1) and the spring tensioning element (2) in its spring action and hardness design have different values.

5. Carrier element according to one of the preceding claims, characterized in that the spring tensioning element (2) in guide openings (1 8) in the

support elements

(3 a) and the end blocks (4,5) is guided and in addition slide bearing bushes (19) in the guide openings (18) of the support elements (3 a) and in the

guide openings

(18a, 18b) of the end blocks (4, 5) are inserted as needed.

6. Carrier element according to one of the preceding claims, characterized in that the spring tensioning element (2) is formed from a metal spring wire with round or other cross-sections and or consists of a metal or plastic pull rope with low elongation, which runs in a plastic hollow profile and or with plastic is sheathed and the molded at its two ends molded or pressed molding (14).

7. Carrier element according to one of the preceding claims, characterized in that the supporting elements (3) of springs (36) and or of flexible foam blocks and or materials having comparable properties, with different density are formed, which are formed differently according to the task and a different Have basic hardness and or formed from controllable pneumatic, hydraulic or electro-mechanical actuators, which are controlled in their hardness and expansion between the spring element (1) and the spring tensioning element (2).

8. Carrier element according to one of the preceding claims, characterized in that springs (24) between the spring element (1) and the spring clamping element (2)

Replacement Blade (RULE 26) are fixed, they are preferably ring, meander or trapetzförmig (33) are formed and or from a form-fitting between the spring element (1) and the spring tensioning element (2) introduced soft foam block formed and or pneumatic actuatable actuators (22) and the actuators in their hardness and expansion between the spring element (1) and the

Spring tensioning element (2) can be controlled mechanically, electromechanically or pneumatically and that they consist of different material and degrees of hardness.

9. Carrier element according to one of the preceding claims, characterized in that at least one spring tensioning element (2) is used as a spring and

Limit stops (12,13) and guides (25) on the spring tensioning element (2) and guide receptacles (26) in the end blocks (4,5) are present and a tension element (27), advantageously as a flat band and or plastic rope and or steel fabric is formed, having at its ends (28) molded threads, latches and or corresponding fastening means, which

End blocks (4,5) which receive the biasing means penetrates and by means of a compression spring (15,16), the spring stiffness of the compression spring (15,16) can be changed and thus the bias of the spring element (1) is adjustable.

10. Carrier element according to one of the preceding claims, characterized in that a spring tensioning element (2) and on its two opposite sides in each case a Federeiement (1 and l a) is arranged and they from the

End blocks (4, 5) are received and the at least one support element (3b) is arranged between the spring element (1) under the spring tensioning element (2) and the support side (8) of the support element on the lower side of the

Federspannelementes (1 a) takes place.

1 1. Carrier element according to one of the preceding claims, characterized in that the supporting elements (3) and the end blocks (4,5) designed as spring arms support arms (36,37) which are arranged mirror-symmetrically left and right in the transverse direction of the longitudinal axis and record additional spring elements (lb, lc), which have the same height profile as the spring element (1).

12. Carrier element according to one of the preceding claims, characterized in that the spring tensioning element (1) of a plurality of arms (21, 21 a.21b, 21c) is formed

Replacement Blade (RULE 26) is, which form from a common base (38) and each have their own end blocks (4,4a, 4b, 4c) at their ends, and a spring element (1), the gene by corresponding Ausnehm (39) in the spring element ( 1) directionally neutral or specified pressure point elastic surface deformations or the sinking depth in the surface structure of the spring element (1) is set.

13. Carrier element according to one of the preceding claims, characterized in that in a functional module which consists of a plurality of carrier elements or of a spring element (1) with a plurality of spring clamping elements (2) is formed and the adaptively acting pressure distribution structures in the spring element, the bias over an outsourced common, central biasing unit can be made, the common control via roller-guided

Wire rope connections, Bowden cables or hydraulic components takes place.

14. Carrier element according to one of the preceding claims, characterized in that a wide spring element (1), at which a plurality of individual

Spring tensioning elements (2) with the associated components are arranged longitudinally and or transversely.

Replacement Blade (RULE 26)