BE1020193A3 - GREEN FURNITURE. - Google Patents

Abstract

The invention comprises a piece of furniture comprising a seat part, wherein the piece of furniture is further characterized by the presence of a set of two pedals that allow the user to cycle from the seat part, this set of pedals being coupled to a generator.

Description

GREEN FURNITURE

FIELD OF THE INVENTION

The present invention relates to furniture that, on the one hand, allows to generate green electrical energy through human movement and to use this energy, and, on the other hand, that allows the user to stay fit and meet the daily norm for physical exercise. The furniture also offers the option of automatically visualizing the user's performance in terms of energy generation and movement on social networking sites.

BACKGROUND

More and more people are screen workers on our labor market. A harmful side effect of this is that they increasingly work purely sedentary (sedentary).

Even in the evenings and at the weekend, these people often relax while sitting, for example watching TV on the couch or behind their PC. However, there is a growing awareness that sitting still for long periods is unhealthy. The prevailing Flemish health standard therefore underlines the need for adult Flemish people for 30 minutes of moderately intensive physical activity per day.

Today, unfortunately, only a small percentage of adult Flemish people meet this health standard. As a result, both the government and employers are increasingly encouraging exercise with campaigns, but also with bicycle allowances or by offering, for example, a company fitness or paying back a membership of a sports club.

In addition, there is a continuing need for opportunities to limit the consumption of centrally generated energy by generating green energy. It is also important in this context that people are encouraged to use energy more efficiently. By offering them an opportunity to generate a small amount of energy themselves, they become aware of the fact that energy is 'not just there', and that a considerable amount of energy is needed to obtain a limited amount of power.

Various initiatives are found in the state of the art to allow human movement to generate power for driving an electronic device such as a television or computer.

US6,244,988 describes an interactive movement system in which a conventional exercise bike is connected to a computer. The speed at which information is displayed on the screen depends on the speed of stairs.

US6,179,746 describes a device that converts the movement of the user via pedals into an incentive to continue pedaling. The module is connected to a switch box, which detects whether the user is cycling via sensors. If a bicycle movement is indeed detected, a signal is given via the switch box to TV, video or audio and the respective device is switched on, thus stimulating the user to move further. DE2Ó008998U1 continues in the same direction, in the sense that the energy is used directly to drive a computer (or similar device).

SUMMARY

The invention has for its object, in certain embodiments, to provide a piece of furniture that allows to provide a movement activity during work. More specifically, in certain embodiments, the invention has for its object to provide a piece of furniture that permits movement activity during the performance of an activity that requires a table, such as; but not only, computer work, ironing, etc. The object of the invention in certain embodiments is to provide a piece of furniture that allows to provide a movement activity during another activity, such as watching TV or eating. The invention has for its object in certain embodiments to provide a piece of furniture that makes people aware of the value of energy. The invention has for its object, in certain embodiments, to provide a piece of furniture which permits the generation of green electricity during the work described above. It is an object of the invention in certain embodiments to provide a piece of furniture that allows to provide green energy during another activity, such as watching TV or eating. It is an object of the invention in certain embodiments to provide a piece of furniture that can be used during office work. In further embodiments, the invention provides a piece of furniture that can be used during a relaxation activity. The invention provides in certain embodiments to provide a piece of furniture that can be used while waiting, such as for example in a station, airport or shopping center. It is an object of the invention in certain embodiments to provide a piece of furniture that can be used by a passenger while driving. The invention has for its object in certain embodiments to provide a piece of furniture, wherein the piece of furniture can be arranged in a modular manner and can be combined with other pieces of furniture, preferably similar pieces of furniture. It is also an object of the invention in certain embodiments to provide a piece of furniture that indicates how much electrical energy is generated. It is also an object of the invention in certain embodiments to provide a piece of furniture that indicates how much electrical energy is consumed. The invention also has for its object, in certain embodiments, to provide a piece of furniture which indicates how much electrical energy remains for the user.

One or more of the above objects is achieved by certain embodiments of the present invention. One or more of the above objects is achieved by preferred forms of the present invention.

In order to meet the aforementioned objectives, the invention provides a piece of furniture comprising a seat part, wherein the piece of furniture is further characterized by the presence of: a set of two pedals allowing the user to cycle from the seat part to which this set of pedals is coupled to a generator; - an energy buffer coupled to the generator; - one or more sockets connected to the generator and / or to the energy buffer.

The invention provides in certain preferred forms a piece of furniture as described above, further comprising a table surface. This table surface is preferably connected to the seating area.

The invention provides in certain preferred forms a piece of furniture as described above, characterized in that the piece of furniture comprises a modular coupling mechanism so that two or more pieces of furniture can be modularly connected to each other, preferably around the same table surface.

The invention provides, in certain preferred forms, a piece of furniture as described above, which is further provided with a network coupling that allows the produced energy to be connected to a network.

The invention provides in certain preferred forms a piece of furniture as described above, which is further provided with a charging module that allows the energy produced to be delivered to a connected electrical and / or electronic device.

The invention provides in certain preferred forms a piece of furniture as described above, which in addition comprises a central processing unit that receives data from the generator and / or from sensors coupled to the pedals. Preferably, the central processing unit can transmit data via a wireless connection. The piece of furniture preferably comprises a display which is coupled to the central processing unit.

The invention provides in certain preferred forms a piece of furniture as described above, which is further provided with a connection to the internet or a telephone network. This connection is preferably wireless. This connection is preferably connected to social media.

The invention provides, in certain preferred forms, a piece of furniture as described above, wherein the seating portion slopes down to the pedals. Preferably, the seating portion is inclined at an angle of at least 1 ', more preferably at an angle of at least 5 °, even more preferably at an angle of at least 10 ".

The invention provides in certain preferred forms a piece of furniture as described above, wherein the set of pedals is coupled to a generator by means of a transmission which optionally comprises a gear transmission, this transmission being selected from a double stage or a single stage. Preferably, the transmission comprises a single stage.

The invention provides in certain preferred forms a piece of furniture as described above, wherein the energy buffer comprises a battery or capacitor, preferably selected from the list comprising: a lead-acid battery, a lithium-ion battery, an ultra-capacitor and an electrolytic capacitor. The energy buffer preferably comprises an ultra-capacitor and a switched current limiter.

The invention provides in certain preferred forms a piece of furniture as described above, wherein the generator is selected from the list comprising: a DC generator, an AC generator and a hub dynamo. The generator preferably comprises an AC generator.

The invention provides in certain preferred forms a piece of furniture as described above, further comprising an indicator that indicates how much energy is used and / or an indicator that indicates how much energy is generated. This indicator preferably comprises a light-emitting element, such as for example LED strip.

The invention provides in certain preferred forms a piece of furniture as described above, further comprising an indicator which indicates how much energy remains in the energy buffer.

The invention provides in certain preferred forms a piece of furniture as described above, wherein the indicator comprises a light-emitting element with a variable light intensity. To this end the invention comprises in a preferred form a piece of furniture as described above, wherein the indicator comprises a plurality of light sources, wherein a variable number of these light sources can be lifted or switched off.

The invention provides in certain preferred forms a piece of furniture as described above, further comprising a seat surface and a table surface which are connected to each other, in particular they are both attached to a central structure. In certain embodiments, the table surface is oriented only to the side of the seat surface. In other embodiments, a larger table surface is provided that also extends in other directions.

The invention provides in certain preferred forms a piece of furniture as described above, further comprising a table surface with a hole, and optionally a central column through this hole wherein this hole is larger than the central column, and wherein this hole is suitable for coupling the piece of furniture with other furniture including a central column.

The invention arose from the desire to provide a solution to people who lack movement because they do a lot of sitting work or have to spend a lot of time sitting down due to circumstances. The invention enables people - with moderate intensity - to move while working. In addition, this gives the possibility of obtaining (green) energy from movement on the one hand and supplying local electricity locally to places where this is not or difficult to achieve for practical reasons.

With this invention we describe a piece of furniture that converts human energy into usable electrical energy.

DESCRIPTION OF THE FIGURES

The following description of the figures of specific embodiments of the invention is by way of example only and is not intended to limit the present explanation, its application or use. In the drawings, corresponding reference numbers refer to the same or corresponding parts and features. A legend of the reference numbers is shown below: 1 - furniture 2 - seating area 3 - table surface 4 - pedals 5 - socket 6 - light strip with variable intensity 7 - light strip with variable number of light points 8 - gear 9 - chain transmission 10 - generator 11 - safety relay 12 - zener circuit 13 - dump load resistor 14 - load current limiter circuit 15 - 'green light switch' circuit 16 - ultracapacitor 17 - DC / AC inverter 18 - temperature display 19 - hole in table surface 20 - belt pulley 21 - intermediate belt pulley 22 - pressure roller 23 - belt transmission

Figure 1 gives a schematic representation of an embodiment of the present invention, wherein the piece of furniture (1) is provided with a seating area (2) and a table surface (3), a set of two pedals (4) and a socket (5).

Figure 2 gives a schematic representation of an embodiment of the present invention, wherein the seating portion (2) is adjustable in height relative to the table surface (3).

Figure 3 gives a schematic representation of an embodiment of the present invention, wherein a built-in light strip (6) is coupled to the power generator, and the intensity is coupled to the strength of the current generated.

Figure 4 gives a schematic representation of an embodiment of the present invention, in which a built-in light strip (7) is coupled to the power generator and the number of lights that come on is coupled to the strength of the generated current.

Figure 5 gives a schematic representation of an embodiment of the present invention, wherein the socket (5) is used for the power supply of a laptop.

Figure 6 gives a schematic representation of an embodiment of the present invention, wherein the seating portion (2) is slanted towards the set of two pedals (4). The furniture additionally comprises two gears (8), a chain transmission (9) and a generator (10). The seat is optionally adjustable in height or not.

Figure 7 shows a schematic representation of an electrical circuit between the generator and the socket according to an embodiment of the present invention, with insertion pin of a generator (10), a safety relay (11), a zener circuit (12) of preferably 30V, a dump load resistor (13), a load current limiter circuit (14), a 'green light switch' circuit, an ultracapacitor of preferably 10.7F and 30V, a DC / AC inverter (17) of preferably 300W, and a temperature display (18).

Figure 8 gives a schematic representation of different arrangements, wherein several pieces of furniture (1) according to an embodiment of the invention are coupled to each other around the same table surface (3). The arrangement in which 3 pieces of furniture are connected to each other is shown in more detail, including a common table surface (3), multiple seating areas (2), multiple sets of pedals (4) and a socket (5).

Figure 9 gives a schematic representation of how a piece of furniture with a table surface (3) can be modularly linked to a second piece of furniture by means of a hole (19) in this table surface (3), each piece of furniture comprising a central column that fits through this hole .

Figure 10 provides a schematic representation of an embodiment of the present invention in a central vertical structure, such as a bar stool, comprising a seating area (2), a generator (10), a pulley (20), an intermediate belt pulley (21), a set of pedals (4), a pressure roller (22), and a belt transmission (23).

DETAILED DESCRIPTION

As used further in this text, the singular forms "one," "the," "the," include both the singular and the plural unless the context is clearly different.

The terms "include", "includes" as used further are synonymous with "inclusive," include "or" contain, "contain" and are inclusive or open and do not exclude additional, unnamed members, elements or method steps. This also includes embodiments that contain only the aforementioned members, element or method steps.

The enumeration of numerical values based on numerical ranges includes all values and fractions in these ranges, as well as the cited endpoints.

The term "about" as used when referring to a measurable value such as a parameter, a quantity, a duration, and so on, is intended to encompass variations of +/- 10% or less, preferably +/- 5% or less, more preferably +/- 1% or less, and even more preferably +/- 0.1% or less, from and from the specified value, as far as the variations apply to function in the disclosed invention. It is to be understood that the value to which the term "approximately" refers per se has also been disclosed.

All documents quoted in the current description are fully incorporated herein by reference.

Unless defined otherwise, all terms disclosed in the invention, including technical and scientific terms, have the meaning that those skilled in the art usually understand. As a further guide, definitions are included for further explanation of terms used in the description of the invention.

The invention relates in a first aspect to different embodiments of a piece of furniture comprising a seat part, wherein the piece of furniture is further characterized by the presence of: - a set of two pedals allowing the user to cycle from the seat part, said set of pedals is connected to a generator; - an energy buffer coupled to the generator; - one or more sockets connected to the generator and / or to the energy buffer.

According to this aspect, all the elements mentioned above are present. However, the invention also provides, in accordance with other aspects, embodiments in which the seating portion is optional. In these embodiments, the pedals can be driven from a separate, free-standing seat. It will thus be clear to a person skilled in the art that the relative positioning of the various elements relative to each other may differ depending on the embodiment. Furthermore, the invention also provides in certain aspects certain embodiments in which the energy buffer is optional. According to a further aspect, the invention provides embodiments in which the generator is optional. According to certain embodiments of the invention, the socket is optional. In certain embodiments, the power is not taken locally or when the power generated is used to drive a device built into the furniture.

According to the present invention, the furniture is designed in such a way that the seating part that will be used (whether or not built into the furniture) and the pedals are arranged or can be positioned relative to each other that the user can cycle moderately intensively ergonomically. The module allows the user to exercise moderately while sitting (cycling) while working, computing, reading, eating or relaxing. In the context of this invention, it was found that moderately intensive cycling corresponds to a speed of approximately 12 km / h. Preferably, the user will consume energy corresponding to cycling at a speed between 1 km / h and 60 km / h, more preferably at a speed between 5 km / h and 20 km / h, most preferably at a speed between 10 km / h and 15 km / h. It has also been proven that performance with regard to content / cognitive capacity tasks improves considerably when the person cycles moderately intensively.

Preferably, the maximum volume generated by the furniture is lower than 60 dB, more preferably lower than 50 dB, even more preferably lower than 40 dB, most preferably lower than 30 dB.

The pedals preferably comprise pedals shorter than 170 mm, more preferably shorter than 160 mm, even more preferably shorter than 150 mm.

The output power of the consumer is preferably between 50 W and 150 W. Preferably, the output voltage of the consumer is 220V. Preferably, the output voltage of the generator is 12V. However, in specific embodiments of the furniture according to the present invention, it is provided that the generated energy is (also) used locally. In such an embodiment it is provided that the energy output by cycling at a moderate speed (20 W-200 W) comes close to the consumption of a modern laptop (75 W).

In certain embodiments, the furniture according to the present invention is provided with a socket for local current collection. This allows the user to power a device locally via a power cable. More specifically, one thinks of the power supply of a portable device such as a mobile phone, smartphone, laptop, electronic book, i-pod, CD player, mp3 player, i-pad etc.

As used herein, the term "socket" refers to any electrical contact and / or connector that allows the user to draw power from the generator and / or the energy buffer. The term socket includes a conventional socket that can be connected to a plug The term “socket” also includes electronic ports such as USB ports and firewire ports. The term “socket” also includes wireless electrical contacts that, by means of inductive coupling, for example by means of coils, a device or battery can supply the necessary electrical power Such wireless charging systems are known in the art and are used, inter alia, for electric toothbrushes, which has the advantage that there are no open electrical contacts and that there is no danger of electrocution. The term "socket" also includes a connection to the network.

In a preferred form of the invention, the socket comprises an inductive coupling. In a preferred form of the invention, the socket comprises a USB port. In a preferred form of the invention, the socket comprises a microUSB port. In a preferred form of the invention, the socket comprises a socket. In a preferred form of the invention, the socket comprises a mains connection.

In a preferred form the invention relates to a piece of furniture as described above, further comprising a table surface. This table surface is preferably connected to the seating area. In an alternative embodiment of the invention, this table surface is not connected to the seating area. In a preferred form of the invention, the table surface is round. In a preferred form of the invention, the table surface is semicircular. In an embodiment of the invention, the table surface is rectangular. In a preferred form of the invention, the table surface comprises a hole suitable for coupling the furniture with other similar furniture. The invention provides in certain preferred forms a piece of furniture as described above, further comprising a table surface with a hole, and optionally a central column through this hole wherein this hole is larger than the central column, and wherein this hole is suitable for coupling the piece of furniture with other furniture including a central column.

In the following, the terms "table" and "table surface" will be used interchangeably. The table surface is preferably made from scratch-free material. Preferably the table is child friendly. The furniture is preferably watertight. In one embodiment, the table surface is made of glass. In one embodiment, the table surface is made of trespa. In one embodiment, the table surface is made of corian.

The design of the seating area and the table surface are not critical to the furniture according to the present embodiment. They can be connected to each other via a basic structure, or via an electricity cable when the socket is in the table. In an alternative embodiment, they can also be arranged independently of each other when, for example, the socket is in the seat section. In certain embodiments, the seating area comprises, in addition to a seating surface, also a backrest. It is important that the orientation of the seat and the table surface in the furniture are such that the user can perform actions (such as working on a laptop) in an ergonomically responsible manner on the table surface when it takes place on the seating area. Optionally, the seating area and / or the table surface (or part of it) is height adjustable by the user. Optionally, the seating area and / or the table surface (or a part thereof) can be adjusted in width and / or length by the user. The seat height of the seating area can preferably be adjusted for people with a height between 1m40 and 2m. Preferably, the seat height of the seating area does not have to be adjusted mechanically (adjustable / adjustable) for people with a height between 1m55 and 1m93.

In a preferred form the invention relates to a piece of furniture as described above, characterized in that the piece of furniture comprises a modular coupling mechanism so that two or more pieces of furniture can be modularly connected to each other, preferably around the same table surface.

The modular coupling mechanism can include a central axis. In a preferred form of the invention, two or more pieces of furniture, such as for example three, four, six, eight or twelve, can be connected to each other around a central axis. In a preferred form, the modular coupling mechanism comprises a central axis which connects two or more pieces of furniture together through a hole in the table surface around the same table surface.

The modular coupling mechanism can include a lateral coupling on the furniture. In a preferred form of the invention, two or more pieces of furniture, such as, for example, three, four, six, eight or ten, can be linked together in a row.

In certain embodiments, the furniture according to the present embodiment comprises two or more seating parts and also two or more corresponding sets of pedals, suitably around the same table surface. In further embodiments, the table surface is round and the two or more seating parts are arranged at equal distances from each other around the table surface. In more particular embodiments, the different seating sections are connected to each other and the basic structure has a central column (to which the table surface is optionally attached) with projections to the different seating sections. In certain embodiments, the central axis is conical. In a specific embodiment, a piece of furniture according to the present invention is provided with three sets of pedals and corresponding seating parts, which are placed at equal distances from each other around a central round table. In a preferred form of the invention, the central column is lower than eye level. In a preferred form, the invention relates to a piece of furniture as described above, which is further provided with a network connection that allows the produced energy to be connected to a network. In this way the generated current can be diverted to other users.

In a preferred form the invention relates to a piece of furniture as described above, which is further provided with a charging module that allows the energy produced to be delivered to a connected electrical and / or electronic device.

Charging modules are known in the art and their nature is not critical to the invention described herein. More specifically, this concerns one or more charging modules for electronic devices such as a mobile phone, smartphone, laptop, electronic book, i-pod, CD player, mp3 player, i-pad etc.

The one or more sockets and / or charging modules are preferably built into the device at a place where they are easily accessible to the user, more particularly in the vicinity of the table surface, such as for example in the table surface, in a basic structure, in a central column or other construction that protrudes above the table surface.

In a preferred form of the invention, the charging module also comprises a wireless charging system, such as, for example, inductive coupling, for example by means of coils. Such wireless charging systems are known in the art and are used, inter alia, for electric toothbrushes. In such cases, the electronic device to be charged will, for example, simply have to be on the table top to be able to charge. In a preferred form of the invention, the charging module comprises a USB port or a microllSB port.

In a preferred form the invention relates to a piece of furniture as described above, which furthermore comprises a central processing unit that receives data from the generator and / or from sensors coupled to the pedals. Preferably, the central processing unit can transmit data via a wireless connection. The piece of furniture preferably comprises a display which is coupled to the central processing unit.

In certain embodiments, the furniture of the present invention comprises a central processing unit that receives data either from the generator or from sensors on the pedals. This data relates to the amount of movement that was performed. This can optionally be displayed in distances (for example equivalent to distances that would be covered if the pedaling was performed on a standard bicycle) or in the form of time performance (distance / time). Additionally or alternatively, the data may relate to the amount of power produced (W) or energy (joules, kcal). This can be displayed quantitatively or qualitatively (schematically or picturally). On the other hand, this data can also be passed on to a data receiver such as a mobile phone, PC or laptop on which this data can be consulted.

In certain embodiments of the furniture according to the present invention, it is provided that this data can be transmitted via a (wireless or non-wireless) connection. For example, the data can be forwarded to a local display.

This local display may or may not be linked to the furniture. In certain embodiments, the central processing unit comprises a memory for storing data. As indicated above, the furniture according to the present invention is optionally provided with a display on which information about the conversion of movement of the user into energy is displayed. The display is preferably provided on or above the table surface.

In a preferred form the invention comprises a piece of furniture as described above, which is further provided with a connection to the internet or a telephone network. Preferably this connection is wireless. This connection is preferably connected to social media.

Finally, it is also envisaged that this data can be forwarded to a mobile network. Hereby the data (whether or not limited and / or secured) can be made accessible via the internet. The availability of this data via a mobile network makes it possible to give access to this data to various commercial and / or non-commercial services. For example, it is possible to allow certain commercial services to offer products that are linked to this information (whether or not in exchange for the purchase of the electricity produced), such as for the telecom industry: call or SMS credit, internet connection time, etc.

In a preferred form of the invention, this information is made available through social media so that users can monitor and possibly compare their performance. The term "social media" includes online platforms where the users provide the content without or with minimal intervention from a professional editorial staff. There is also interaction and dialogue between users. Examples of social media are: Facebook, Blogger, Google Buzz, Google+, Twitter, Myspace, Hyves, Linkedln, Google Does, Dropbox.com, Flickr, Picasa, Youtube and Vimeo. The social media preferably comprise blogs, such as, for example, Blogger, and / or social networks, such as, for example, Facebook or Twitter. In a preferred form of the invention, the information is used by healthcare institutions or healthcare providers such as home care or general practitioners. This makes it possible to monitor the performance of certain patients, such as heart or diabetes patients.

In a preferred form, the invention relates to a piece of furniture as described above, wherein the seating portion slopes towards the pedals. Preferably, the seating portion is inclined at an angle of at least Γ, more preferably at an angle of at least 5 ', even more preferably at an angle of at least 10 ".

This makes it possible to provide a seating area that does not need to be adjusted in height, and where working on the furniture remains ergonomically sound.

In a preferred form the invention relates to a piece of furniture as described above, wherein the set of pedals is coupled to a generator by means of a transmission which optionally comprises a gear transmission, this transmission being selected from a double stage or a single stage. Preferably, the transmission comprises a single stage.

Preferably, the transmission does not include a gear transmission. In a preferred form of the invention, the transmission comprises a chain, belt or bicycle belt.

The gear ratio depends on the type of generator. Commercially available generators (AC or DC) usually only work efficiently from +1500 rpm, this value usually being a lot higher. Comfortable pedaling is around 50 to 60 rpm. As a result, the transmission ratio will preferably be between 1/17 and 1/30. In a preferred form of the invention, the transmission has a transmission ratio between 1/17 and 1/30.

A double stage with two chains or belts (or a combination) has the disadvantages that it is technically complex, exhibits low efficiency due to the high speed of the belt and / or chain in the second stage (with particular problems with belts), a high noise production due to the high speed of the belt and / or chain in the second stage (with problems with chains in particular) and a high cost with custom belt pulleys. The latter can be printed using standard pulleys.

A single stage with chain or belt has the disadvantage that the transmission ratio is too low for standard generators. On the other hand, this is a cheaper and technically simpler solution.

A double stage with chain and / or belt followed by gear transmission has the disadvantages of a high noise production of the gear transmission, more expensive cost than a single stage with chain or belt, and a lower efficiency comparable to a double stage with two chains or belts. A double stage with chain and / or belt, followed by gear transmission has the advantage that a standard (planetary) gear transmission and a standard generator can be applied.

A single stage with a gear transmission has the disadvantages that the coupling to the pedals is technically very complex (e.g. shaft with angular transmission), it is an expensive solution, the gear transmission causes a high noise production and the coupling has a low efficiency. However, this is the most compact solution and a standard generator is applicable.

In a preferred form of the invention, the transmission comprises a single stage with chain or belt, without gear transmission.

In a preferred form, the invention relates to a piece of furniture as described above, wherein the energy buffer comprises a battery or capacitor, preferably selected from the list comprising: a lead-acid battery, a lithium-ion battery, an ultra-capacitor and an electrolytic capacitor. The energy buffer preferably comprises an ultra-capacitor and a switched current limiter.

In certain embodiments, the generator is furthermore also coupled to an inverter. This makes it possible to efficiently convert the energy produced into a usable format. An energy buffer is advantageous for smoothing the voltage generated, the extent to which this must occur is determined by the requirements of the inverter. An energy buffer is also advantageous to compensate for short breaks or variations in pedaling speed. The buffer capacity determines the allowed break and the depth and duration of the variation. An energy buffer is also advantageous to provide a current peak for being able to start up the inverter.

The piece of furniture according to the present invention also contains a battery. This makes it possible to save the generated energy and to control its distribution. Batteries suitable for use in the furniture of the present invention are known in the art. However, according to specific embodiments, the battery is a custom-dimensioned battery with an optimum service life.

A lead-acid battery is heavy, has an environmentally harmful life cycle, contains corrosive acid, and must be ventilated. In addition, the charging time is usually a minimum of 5 hours, independent of capacity and only a limited number of charging and discharging cycles (typically 500 to 1000) are possible. There is a risk of "overcharging" with a high risk of permanent damage to the battery and a charging circuit is required. An iodic acid battery has the advantage that it offers a cheap price / capacity ratio.

A lithium-ion battery has an environmentally harmful life cycle, a limited number of open discharge cycles (typically 1000 to 2000), a higher cost per KWh than a lead-acid battery. In addition, there is a risk of 'overcharging' with a high risk of permanent damage to the battery and a charging circuit is required. BMS (Battry Management System) is required for 12V systems. A lithium-ion battery has the advantages of a faster charging time (min. 30 min) and a higher energy and power density than a lead-acid battery. This makes the lithium-ion battery lighter and more compact per kWh.

An ultra-capacitor has a lower energy density and a higher price per capacity than the aforementioned batteries. The supplied voltage is directly proportional to stored energy, so a converter with a fairly large input voltage range is required. An ultra-capacitor has the advantages that there is no danger of 'overcharging', a very high number of charging and discharging cycles (+1000000) are possible, and no BMS or charging circuit is required. Moreover, the power density is higher than the aforementioned batteries and an ultra-capacitor has a much less environmentally harmful life cycle than the aforementioned batteries. In a preferred form of the invention, the energy buffer comprises an ultra-capacitor.

An electrolytic capacitor (or elco) has a lower energy density and a higher price per capacity compared to the aforementioned energy buffers. The supplied voltage is directly proportional with stored energy, so a converter with a fairly large input voltage range is needed. Advantages: An electrolytic capacitor has the advantages that there is no danger of 'overdosing', a very high number of charging and discharging cycles being possible, and no BMS or charging circuit is required. Moreover, the power density is higher than the aforementioned batteries and an ultra-capacitor has a much less environmentally harmful life cycle than the aforementioned batteries. In a preferred form of the invention, the energy buffer comprises an electrolytic capacitor.

In a preferred form the invention relates to a piece of furniture as described above, wherein the energy buffer is wirelessly charged by the generator. Preferably, this is done by means of a coil.

In a preferred form the invention relates to a piece of furniture as described above, wherein the generator is selected from the list comprising: a DC generator, an AC generator and a hub dynamo. The generator preferably comprises an AC generator.

In this description, the terms "generator", "power generator" and "voltage generator" are used interchangeably.

Each of the sets of pedals in the furniture of the present invention is coupled to a generator. The generator used in the context of the invention ensures the conversion of the movement of the pedals (i.e., mechanical energy) into electrical energy. In specific embodiments, the generator is a dynamo or direct current generator that converts the mechanical energy generated by the rotating axis of the pedals into electric direct current energy. In certain embodiments, the generator is furthermore also coupled to an inverter. This makes it possible to efficiently convert the energy produced into a usable format.

In specific embodiments of the invention, the generator is incorporated into the furniture. This can be in the vicinity of the seating area or under the table surface. In specific embodiments, the generator is an efficient, compact and low-noise generator.

A DC generator includes carbon brushes for commutation and results in generated direct current, so no rectifier is required. Although DC generators are relatively cheap, these brushes can form an unwanted source of noise and are subject to wear.

An AC generator is brushless, quieter, less subject to wear, more robust and compact, but requires a rectifier. In a preferred form of the invention, the generator comprises an AC generator.

In a preferred form the invention relates to a piece of furniture as described above, further comprising an indicator that indicates how much energy is used and / or an indicator that indicates how much energy is generated. This indicator preferably comprises a light-emitting element, such as, for example, LED stripe.

In a preferred form the invention relates to a piece of furniture as described above, further comprising an indicator which indicates how much energy remains in the energy buffer. This indicator preferably comprises a light-emitting element, such as, for example, an LED strip.

In a preferred form of the invention, such indicators run along the central column. In a preferred form of the invention, such indicators are visible above or on the table surface. In an alternative embodiment of the invention, the indicator also comprises an audio signal, such as, for example, an alarm. In an alternative embodiment of the invention, the indicator also comprises a movement signal, such as, for example, a vibration.

In a preferred form the invention relates to a piece of furniture as described above, wherein the indicator comprises a light-emitting element with a variable light intensity. In a preferred form the invention comprises a piece of furniture as described above, wherein the indicator comprises a plurality of light sources, wherein a variable number of these light sources can be lifted or switched off. In an alternative embodiment, the indicator comprises a light-emitting element with a variable light color, the color of the light being an indication.

Preferably, a surplus or too much energy in the energy buffer or a surplus of produced energy is indicated by bright light, many burning points of light or green colored light. Preferably, a shortage of energy in the energy buffer or a surplus of consumed energy is indicated by weak light, low burning points or red colored light. A combination of the above is also possible.

In certain embodiments, the furniture according to the present embodiment is provided with one or more additional functions, which may or may not be driven by the power generated in the generator. Thus, it can be provided that functions such as light, ventilation, heating, limited cooling or heating functions (e.g. in beverage containers), music installations, data reproduction and the like are also built into the furniture according to the present invention. In certain embodiments, it is provided that certain functions are built in which are directly coupled to the power generator, so that they are indicative of the amount of power generated locally. For example, a light function (e.g. LED light) may be built-in, where the intensity of the light or the number of light points indicates how much current is being generated.

In certain embodiments, a display may be built into the table surface where different types of information may be available to the user, such as, for example, telephone registers, commercial information, tourist information, etc. In certain embodiments, the display is a touch screen whereby a certain type of information is provided. can be selected.

The material from which the exterior of the furniture according to the present invention is constructed is not critical. This is preferably a material that is sturdy on the one hand and pleasant to the touch by the user on the other. Materials that are considered for this are wood, PVC and other plastics. There are of course parts of the furniture that may preferably be made of other materials (e.g. metal) such as any adjustable parts, connections, pedals, etc. It will be clear to the skilled person that a large number of specific embodiments are possible.

In an additional aspect, the invention provides for the use of the furniture according to the present invention. For example, the inventors anticipate the use of the furniture in various public and commercial locations. The furniture finds its usefulness in semi-public places such as airports. This is because there is a need for the traveler to be able to move before boarding an aircraft. There is also an increasing need for additional sockets and charging capacity for electronic devices at these locations. The furniture presented here brings together an answer to these two needs perfectly. It is also possible that an extra incentive is provided for the user: free internet access or more bandwidth for mobile voice and / or data traffic.

The furniture can also serve as street furniture and / or garden furniture: here the emphasis is mainly on pedaling energy. The furniture can also serve as school furniture: the movement itself becomes very important here. Children are quite mobile in nature, and the new tendency in schools is to steer this mobility in the right direction.

The furniture can also be placed at home, which fits in perfectly with the new social trend of working from home. Even doing homework with children, or watching TV is possible from this piece of furniture. The furniture can also be used during ironing, at home or in ironing workshops.

In specific embodiments, the use of the furniture according to the present embodiment as office furniture is envisaged. During office work, a moderately intensive movement can be performed, which has a positive effect on both health and also on the intellectual performance of the user. Furthermore, the furniture can be used in call centers or at checkouts where people sit still for relatively long periods.

EXAMPLES

Example 1 - The green table

Figure 1 gives a schematic representation of an embodiment of the present invention in which the furniture (1) is provided with a seating area (2) and a table surface (3) which are connected to each other. The piece of furniture is furthermore characterized by the presence of a set of two pedals (4), which allow the user to cycle from the seat, this set of pedals generating power via a generator. Power can be drawn from a socket (5) that is accessible to the user in the vicinity of the table surface.

Figure 2 illustrates that the seating area (2) can be adjustable in height.

Figure 3 gives a schematic representation of the piece of furniture according to a specific embodiment of the present invention in which a built-in light strip (6) is coupled to the power generator. The intensity is linked to the strength of the current generated so that the harder you step, the stronger the light shines.

Figure 4 gives a schematic representation of an embodiment of the present invention in which a built-in light strip (7) is coupled to the power generator. The number of lights that come on is linked to the strength of the generated current so that the harder you step, the higher the light strip continues to run.

Figure 5 gives a schematic representation of an embodiment of the present invention, wherein the socket (5) in a central column is used for the power supply of a laptop.

Figure 6 gives a schematic representation of an embodiment of the present invention, wherein the seat portion (2) is not height adjustable and slanted to the set of two pedals (4). This allows an ergonomically responsible position. In the arrangement of Figure 6, a large sprocket (8) with 44 teeth is also used which is coupled via a chain transmission (9) and a small sprocket (8) to a hub motor (24/36 Volt, three-phase) (10) is.

Example 2 - Electrical circuit between generator and socket

An electrical circuit between the generator and the power outlet according to a non-limiting embodiment as shown in Figure 7 is illustrated below.

The biggest challenge comes from the fact that the power supplied by the generator has a highly variable voltage that is directly proportional to the pedaling speed. In order to be able to convert this to a constant mains voltage, the inverter must therefore have the largest possible input voltage range. An inverter with such a large range is the SM 4081 from 'Custom PSU Design': it has a useful voltage window from 10.6 to 30V.

An ultra-capacitor is preferably chosen as the buffer. An interesting type concerning capacity / cost price here is a 2.5V version, supplied by "RS Components", with a capacity of 150F. If a maximum system voltage of 35V is assumed, a series connection of 14 pieces is required. The total capacity is then 150F / 14 = 10.71 F. This implies a total storage capacity (at 30V) of (10.71 F x (30V) 2) / 2 = 4819.5J. However, since a voltage below 10.6 V cannot be used for the inverter, the following 'residual capacity' cannot be used: (10.71 F x (10.6 V) 2) / 2 = 1203.4 J. The total useful buffer capacity is therefore 4819.5J-1203.4J = 3616.1 J.

The residual capacity always remains present in the buffer, and will only 'leak' away after a few weeks due to self-decomposition of the capacitors. With frequent use of the devices, the user will therefore not suffer any disadvantage. Only after a long standstill will the first user have to cycle a little longer than normal to reload the empty buffer.

The useful buffer capacity of approximately 3600J corresponds to a power of 360W for 10 seconds, or 180W for 20 seconds, etc. The size of the buffer capacity is an equilibrium exercise: if the buffer is chosen too large, the user must (assuming an empty buffer) cycle for far too long before it is sufficiently filled to get 'green light'. If the buffer is too small, the amount of energy will drop too quickly when pausing or slowing down, which will cause the inverter to switch on and off more often.

A property of (ultra) capacitors is that they have a very small internal resistance. This would result in the generator being loaded to the maximum when charging the buffer (due to the high current intensity), so that the user would feel an enormous amount of pedaling resistance (although only for a shorter time, because the buffer would be filled quickly). This would be comparable to cycling a steep slope in top gear: one is up with a few revolutions of the pedals, but it takes a lot of power. Since this would not be pleasant for most users, it is advantageous to provide a current limit (load current limiter) to the ultra capacitor. This can be done with a simple resistor, but then a lot of efficiency is lost. Therefore, a switched current limiter is preferably opted for. In a preferred form of the invention, the furniture comprises a load current limiter.

An advantage of using ultra capacitors is the property that the voltage is directly proportional to the charge. This makes it very easy to measure the amount of energy stored in the buffer. The 'green light switch' in the diagram switches on the inverter with a certain voltage on the buffer, and therefore with a certain amount of stored energy in the buffer. This switch is advantageous because otherwise the inverter would switch itself on from its lower limit (10.6 V), drawing a peak current, with the result that the buffer voltage would immediately fall below 10.6 V again, which would cause the inverter to switch off again, etc. (any hystérésis is left out of consideration here). In a preferred form of the invention, the furniture comprises a green light switch. The switch is preferably switched to approximately half the (usable) capacity. This gives the user the possibility, even after the green light is on, to cycle faster than necessary to provide the consumer with energy, and thus to supplement the buffer further.

The user could see as feedback a kind of 'thermometer1 of LEDs, where the voltage of the buffer represents the temperature (' temperature display 'in the diagram). When you start cycling, more and more red LEDs light up (temperature rises) until the inverter switches on and you get to the part with the green LEDs. With further replenishment of the buffer (by cycling faster than necessary to provide the consumer with energy), more and more green LEDs light up, until the buffer is completely filled. If you pause or cycle slower, you will see the temperature drop again (speed of decrease depending on power consumption) until all green, and then also all red LEDs are off and the inverter switches off. The above principle is easy to implement electronically.

A system is also preferably provided that allows the user to cycle even more intensively, even after all LEDs are green and the buffer has therefore already been completely filled. This can be the case fairly quickly if one has only plugged in a light consumer, or, for example, if one wishes to cycle without a consumer plugged in. This system preferably also ensures that the system voltage can never exceed 35V (supplied voltage from the generator is directly proportional to the speed of the stage, and this is in principle not limited), because otherwise the components will fail.

To achieve the above, a so-called 'dump load' is provided in the diagram, linked to a zener circuit. This circuit ensures that from a system voltage of 30V a progressive current will flow through the 'dump load resistor1', as a result of which the excess power will be converted into heat. The effect of this is that with a buffer that is already completely filled, the user will feel a progressively increasing resistance if the pedaling speed increases. In a preferred form of the invention, the furniture comprises a dump load.

A safety relay is also preferably provided that completely disconnects the generator from the electrical circuit, if the bicycle power is so high that the dump load can no longer dissipate it. The effect of switching on this relay will be comparable with the breaking of a bicycle chain while cycling: all resistance with the stairs suddenly disappears. This is an unpleasant experience for the user, and preferably avoided as much as possible. In a preferred form of the invention, the furniture comprises a safety relay.

Example 3 - Linking different modules

Figure 8 gives a schematic representation of different arrangements, wherein several pieces of furniture (1) according to an embodiment of the invention are coupled to each other around the same table surface (3): In this example, three, six or eight pieces of furniture are coupled around the same table surface. In a preferred form of the invention, each piece of furniture comprises its own indicator. In a preferred form of the invention, the indicators are visible to all users.

Figure 9 gives a schematic representation of how a piece of furniture with a table surface (3) can be modularly linked to a second piece of furniture (without a table surface) by means of a hole (19) in this table surface (3). Both! furniture includes a central column that fits into the hole (19) of the table surface (3).

Example 4 - crank shape

Figure 10 provides a schematic representation of an embodiment of the present invention in a central vertical structure, such as but not necessarily limited to a bar stool. The seating area ^ (2) is height-adjustable and is supported by a tubular profile 30/30/2 mm tubular profile. The generator (10) is a DC generator of 12V, 1000rpm, 150W. The generator is height-adjustable for belt tension. The furniture also comprises a pulley (20) mounted on the pedals (4) and an intermediate belt pulley (21) mounted on the central structure with an acceleration of 1/5. The set of pedals (4) includes a cranck set of 150 mm with pedals and is mounted in bearings. The furniture also comprises a pressure roller (22) and a belt transmission (8) by means of plastic ribbons. The thickness of the band is 4.6 mm, the distance between the teeth is 3.56 mm and the width is 5 ribs. When the user takes a seat on the furniture, this person can activate the system by means of stairs. The system combines two transmissions, each with an acceleration of at least x5. The energy supplied by the generator is fed into a buffer battery via an electronic charge controller. This buffer supplies usable energy to the user via a DC / AC inverter.

Claims (15)

A piece of furniture comprising a sitting area, wherein the piece of furniture is further characterized by the presence of: - a set of two pedals that allow the user to cycle from the sitting area, said set of pedals being coupled to a generator; - an energy buffer coupled to the generator; - one or more sockets, preferably comprising a USB port or micro-USB port, coupled to the generator and / or to the energy buffer. The piece of furniture according to claim 1, further comprising a table surface, preferably connected to the seating area. The piece of furniture according to claim 1 or 2, characterized in that the piece of furniture comprises a modular coupling mechanism so that the two or more pieces of furniture can be modularly connected to each other, preferably around the same table surface. The piece of furniture according to one or more of the preceding claims, which is further provided with a network connection that allows the produced energy to be connected to a network. The piece of furniture according to one or more of the preceding claims, which is further provided with a charging module that allows the energy produced to be delivered to a connected electrical and / or electronic device, preferably by means of inductive coupling. The piece of furniture as claimed in one or more of the preceding claims, further comprising a central processing unit that receives data from the generator and / or from sensors coupled to the pedals, wherein the central processing unit can optionally transmit data via a wireless connection and wherein the piece of furniture optionally includes a display coupled to the central processing unit. The piece of furniture according to one or more of the preceding claims, which is further provided with an, optionally wireless, connection to the internet or a telephone network. The piece of furniture according to claim 7, wherein the connection to the internet or a telephone network is connected to social media. The piece of furniture according to one or more of the preceding claims, wherein the seating portion is inclined towards the pedals, preferably at an angle of at least 1 ', more preferably at an angle of at least 5', even more preferably at an angle of at least 10 ". The piece of furniture according to one or more of the preceding claims, wherein the set of pedals is coupled to a generator by means of a transmission that optionally comprises a gear transmission, said transmission being selected from a double stage or a single stage, preferably the transfer comprises a single stage. The piece of furniture according to one or more of the preceding claims, wherein the energy buffer comprises a battery or capacitor, preferably selected from the list comprising: a lead-acid battery, a lithium-ion battery, an ultra-capacitor and an electrolytic capacitor; preferably wherein the energy buffer comprises an ultra-capacitor and a switched current limiter. The piece of furniture according to one or more of the preceding claims, wherein the generator is selected from the list comprising: a DC generator, an AC generator and a hub dynamo; preferably wherein the generator comprises an AC generator. The piece of furniture according to one or more of the preceding claims, further comprising an indicator that indicates how much energy is being used and / or an indicator that indicates how much energy is being generated and / or an indicator that indicates how much energy is left in the energy buffer , wherein this indicator preferably comprises a light-emitting element, such as for example an LED strip. The furniture of claim 13, wherein the indicator comprises a light emitting element with a variable light intensity; and / or wherein the indicator comprises a plurality of light sources, wherein a variable number of these light sources can be illuminated. The piece of furniture as claimed in one or more of the preceding claims, further comprising a table surface with a hole, and optionally a central column through this hole where this hole is larger than the ceritral column, and wherein this hole is suitable for fitting the piece of furniture. link with other furniture including a central column.