JP2013046548A - Movable chair, desk, and combination of movable chair and desk - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a movable chair including an electric apparatus, such as a fan, to be easily and effortlessly charged.SOLUTION: A wireless power reception part 40 is provided at a front end part of a backrest 9. A wireless power transmission part 6 is provided at a front end part of a top plate 3 in a desk 1 which is used in a set with the chair 2. When a person leaves the desk and the chair 2 is housed in the desk 1, the wireless power reception part 40 moves close to the wireless power transmission part 6 and power is transmitted from the wireless power transmission part 6 to the wireless power reception part 40 to charge a battery 26 provided at the chair 2. A fan for temperature control and a heater are incorporated in a seat 8 and the backrest 9 of the chair 2, and the structure enables work environments matching with individuals.

Description

  The present invention relates to a movable chair, a desk used in combination with the chair, and a combination of the desk and the chair.

  Efficient use of electric power energy is an issue imposed on Japan, and efficient electric power use is also required in offices. Air conditioning equipment occupies a large weight of power consumption in offices, and it has been proposed to reduce power consumption by performing air conditioning not on the whole room but on a pinpoint basis.

  As an example, for example, Patent Document 1 discloses that in a movable chair having casters, a fan is provided inside the seat and the backrest so that the chair has a heating function, a cooling function, or a dehumidifying function. Yes.

  If the entire room is only air-conditioned, temperature irregularities such as differences in temperature between parts close to and far from the air outlet, and airflow is blocked by furniture such as cabinets, etc. In many cases, it is difficult to increase the satisfaction of all workers who use the room. However, if the chair has a control function such as heating / cooling or moisture absorption as in Patent Document 1, it is simply Not only can the amount of power used be reduced compared to the case where the entire system is air-conditioned, but also the temperature and the like can be adjusted according to individual preferences, which can contribute to the satisfaction of each worker.

  One problem in providing a control function such as temperature for a movable chair is securing a power source. Due to the nature of moving freely on the floor, it is not realistic to supply power with a cable, but it is practical to provide a battery. In this case, the battery must be charged, and as a charging method, for example, a charging plug may be connected at the end of work. However, this method has a problem that it cannot be used when the user forgets to connect the plug.

  On the other hand, as disclosed in Patent Document 2, for example, wireless (contactless, cordless) power transmission means (energization means) using electromagnetic induction or the like have been developed. It is disclosed that power is supplied to a device placed on a desk by applying a wireless system energization means to a desk (table) and providing a wireless power transmission unit on the lower surface or inside of the top board.

JP 2011-56173 A Japanese Patent No. 4240748 JP 2005-94843 A JP 2011-120451 A

  As a method of charging the battery of the chair, it is conceivable to employ a wireless system energizing means as described in Patent Documents 3 to 4. However, in the wireless system energizing means, the wireless power transmitting unit and the wireless power receiving unit often have to be brought within a certain distance, while the chair moves freely based on the user's intention, It is necessary to take measures to ensure the energized state.

  For example, it is conceivable to provide a wireless power transmission unit on the floor and a wireless power reception unit on the chair leg. However, since mobile chairs are often provided with casters, the wireless power transmission unit and the wireless power reception unit may be provided. In many cases, it is difficult to narrow the distance from the portion within the allowable energization range. In addition, providing the wireless power transmission unit on the floor has many safety problems. Therefore, it can be said that the power transmission system from the floor has low versatility.

  The present invention has been made in view of such a current situation, and intends to provide wireless energization to a battery provided in a chair in a highly realistic state. In addition, many electrical devices are used on or inside the desk or around the desk, and if these users do not use the desk, the surrounding electrical devices may have to be turned off or on, Conventionally, these peripheral electrical devices have a problem that the user forgets the operation because the user operates the switch and the like based on his / her own intention. For example, when an electric lock is provided on a drawer of a desk or a sleeve cabinet, the electric lock must be locked at the end of work or the like, but this is forgotten. The present invention also has an object to solve this problem.

  In offices and the like, chairs are often used as a set with a table. The inventors of the present application pay attention to this point and have completed the invention of each claim of the present application. That is, the invention of claim 1 relates to a chair. The present invention relates to a movable chair having a seat supported by legs and a battery, and transmits power from a wireless power transmission section provided on a desk to an appropriate portion thereof. A wireless power receiving unit that receives the generated power and supplies it to the battery is provided.

  The invention of claim 2 embodies the invention of claim 1, and the chair of this invention further comprises a backrest, and the wireless power receiving section is provided on one or both of the left and right sides of the backrest. At the same time, either or both of the seat and the backrest are provided with temperature or humidity control means driven by the battery.

  The invention according to claim 3 relates to a desk, and the desk includes a top plate and a support body that supports the top plate, and a wireless power receiving unit provided at the back end of the chair at the front end of the top plate. A wireless power transmission unit that wirelessly feeds power is provided, or a wireless power transmission unit that transmits power to the wireless power reception unit provided on the seat of the chair is provided on the lower surface of the top plate.

  The invention of claim 4 relates to a combination of a desk having a top plate and a movable chair having a seat and a backrest, and a wireless power transmission section is provided at the front end of the top plate of the desk, while the chair Includes a battery, and a wireless power receiving unit is provided on the front part of the backrest of the chair so that the wireless power receiving part can receive power when the front part comes into contact with or approaches the front end of the top plate of the desk. .

  The invention according to claim 5 is a development example of the invention according to claim 4, and in this invention, the wireless power receiving unit is energized from the wireless power transmitting unit to one or both of the top of the desk and the back of the chair. Display means for visually recognizing the inside is provided.

  The invention of claim 6 is a development example of the combination of the desk and chair described in claim 4 or 5, and in this invention, the chair is set so that its backrest is in contact with or close to the front end of the top plate of the desk. Then, when energization is started from the wireless power transmitting unit to the wireless power receiving unit, an electric lock that locks the drawer in the sleeve cabinet disposed inside the desk operates in a locked state, and the drawer provided on the desk At least one of the operation of the electric lock that locks the door, the lighting stand installed on the desk being turned off, and the temperature or humidity control device provided on the chair being turned off. One is executed.

  In the present invention, since power is supplied from the wireless power transmitting unit provided on the desk to the wireless power receiving unit of the chair, power can be safely supplied in a wireless manner while the chair is movable. In general, when the chair is not in use, the seat and legs are stored inside the desk. For this reason, with the configuration of claims 2 to 4, energization can be started by storing the chair on the desk at the end of work or the like. Therefore, it can prevent forgetting to charge. That is, it is possible to prevent forgetting to charge by using a person's habits, which is user-friendly.

  In addition, an unused chair may be left in a random posture at a position away from the desk, but the present invention has an effect of prompting the user to push the chair deeply into the desk for charging. As a result, it is possible to eliminate the state in which chairs that are not used by people are left undisturbed and contribute to the organization and beautification of the office.

  Now, in providing a wireless power receiving unit on a chair, for example, it is possible to provide a wireless power receiving unit on the side edge of the seat and a wireless power transmitting unit on the desk leg, but in this case, the side edge of the seat However, it is necessary to check and set it so that it comes into contact with or close to the desk leg, which is time-consuming for the user. On the other hand, if the structure of Claims 2-4 is employ | adopted, since an energized state can be ensured only by pushing a chair so that a seat may enter the inside of a desk irrespective of the right-and-left position of a chair, it is an extra burden on a user. There is no compulsion. This is also user friendly.

  As a trigger for starting energization from the wireless power transmitting unit to the wireless power receiving unit, the wireless power transmitting unit is always in a state where power can be transmitted, and energization is automatically started when the wireless power receiving unit enters the energizable area. A switch means that is turned on when the chair is housed in the desk can be provided between the desk and the chair, and energization from the wireless power transmission unit to the wireless power reception unit can be started by turning on the switch means. Although various switch means can be adopted, there is an advantage that the structure can be simplified by providing a metal piece on the back of the chair and utilizing the short phenomenon caused by the metal piece coming into contact with the metal top plate of the desk.

  If a display means for allowing a person to visually recognize that wireless power transmission is in progress is provided as in claim 5, the user or administrator can grasp whether or not the battery is charged. When the battery is not sufficiently close and is not charged, an action of pushing the chair and holding it in an energized state can be taken. Therefore, forgetting to charge can be prevented more accurately.

  If the structure of Claim 6 is employ | adopted, it can control the apparatus of the chair itself and the periphery apparatus of a desk triggered by the act which accommodates a chair in a desk. For example, when an electronic lock is provided on the drawer of the sleeve cabinet or the drawer of the desk itself, it is caused by the act of storing the chair on the desk when the lock must be locked at the end of work etc. but the lock is forgotten Can be locked automatically, and as a result, the security of the office can be improved.

  In addition, it is good that you leave the seat to return to the seat immediately but do not return for a long time, and in that case the lamp on the desk may remain lit, but when applying claim 6 of the present application, The lamp can be turned off automatically due to the act of storing the chair on the desk, contributing to energy saving in the office. Similarly, when the temperature control device built in the chair is left on without returning to the seat, it is possible to prevent wasteful consumption of power while the temperature control device is on.

  Controlling various devices due to wireless power transmission (energization) from the desk to the chair in this way may be performed immediately upon the start of wireless power transmission, or timer means are provided so that the chair is placed on the desk. You may perform, after a certain amount of time passes after storing. Moreover, controlling various devices due to wireless power transmission (energization) from a desk to a chair as in claim 6 may be an independent invention regardless of the position of the power transmission unit or the power reception unit.

It is a figure which shows 1st Embodiment, (A) is a side view in the state which uses the chair, (B) is a side view in the state which accommodated the chair. It is a figure which shows 1st Embodiment, (A) is a fragmentary top view, (B) is a front view of a chair, (C) is CC sectional view taken on the line of (A), (D) is D of (B). It is -D view sectional drawing. FIG. 3A is a schematic sectional view taken along line III-III in FIG. 2B, and FIG. 3B is a plan view showing an example of a chair storage position confirmation means. It is a block diagram of a 1st embodiment. It is a top view of a 2nd embodiment. FIG. 6 is a schematic sectional view taken along line VI-VI in FIG. 5.

  Next, an embodiment of the present invention will be described with reference to the drawings. In the following explanation, the words “front and rear” and “left and right” are used to specify the direction. However, the desk has the front and rear direction as the depth direction, and the front and rear direction. Based on orientation.

(1). Structure of First Embodiment First, the first embodiment shown in FIGS. 1 to 4 will be described. The desk 1 and the chair 2 of the present embodiment have the same basic configuration as the conventional one, and the desk 1 is configured such that the top plate 3 is supported by the left and right legs 4, and a thin drawer (center drawer) is provided on the lower surface of the top plate 3. ) 5 is arranged. The top plate 3 is made of steel, and as shown in FIG. 2C, the front end portion is a front hollow portion 3a. Needless to say, the top board 3 may be made of wood or plywood. The leg 4 is an example of a support. It is also possible to use a sleeve cabinet as a support.

  A wireless power transmission unit 6 using electromagnetic induction or the like is provided inside the front hollow portion 3a of the top plate 3. The wireless power transmission unit 6 extends in the left-right direction. The wireless power transmission unit 6 is set so that radio waves are radiated to the front side of the desk. In addition, although the wireless power transmission unit 6 is hidden inside the front hollow portion 3a, it is possible to form a horizontally elongated slot at the front end of the front hollow portion 3a and expose the slot from the slot to the labor side. .

  The wireless power transmission unit 6 has a basic configuration in which a coil (power transmission coil) is wound around a core. The wireless power transmission unit 6 is supplied with a current from a power transmission control unit 7 (see FIG. 4) having a rectifier circuit, an oscillation circuit, and the like via a cable. Is supplied. AC power is supplied to the power transmission control unit 7 from the outlet of the building. The power transmission control unit 7 is disposed at an appropriate part of the desk (for example, inside the wiring duct provided on the back surface or the lower surface of the top plate 3) (the power transmission control unit 7 can be disposed in the front hollow portion 3a. is there.). In FIG. 1, the wireless power transmission unit 6 is displayed in an exposed state for convenience.

  On the other hand, the chair 1 has a seat 8 and a backrest 9, and a leg device 10 is disposed below the seat 8. The leg device 10 includes a plurality of (five) branch legs 11 extending in a substantially horizontal shape and a leg column (gas cylinder) 12 positioned in the center, and a caster 13 is provided at the tip of the branch leg 11. Provided. Therefore, the chair 2 is movable and portable.

  A base 14 is fixed to the upper end of the leg column 12. A back frame 15 is connected to the base 14 so as to be able to tilt backward, and a backrest 9 is attached to the back frame 15. As schematically shown in FIG. 3A, the seat 8 has a seat inner shell 17 made of a resin such as PP and a seat cushion 18 stretched thereon, and the seat inner shell 17 is located below the seat inner shell 17. The seat outer shell 19 is attached.

  The front portion of the seat outer shell 19 is connected to the front portion of the base 14 directly or via an intermediate fitting so as to be movable back and forth, while the rear portion of the seat outer shell 19 is directly or intermediately connected to the back frame 15. The seats 8 are connected to each other through the metal fittings so that the seats 8 can be rotated relative to each other. For this reason, the seat 8 tilts backward while retracting in conjunction with the backward tilting of the backrest 9. The seat outer shell 19 can be regarded as a part of the seat 8, and the whole including the seat outer shell 19 can be called a seat portion.

  A corresponding range of the seat inner shell 17 is covered from below by a seat enclosure member 20 having an upwardly opening concave shape, and a lower ventilation space 21 is formed between the seat inner shell 17 and the seat enclosure member 20. While the seat enclosure member 20 has a non-ventilated structure, the seat inner shell 17 is formed with a large number of ventilation portions such as holes and slits, and the seat cushion 18 is also breathable.

  A seat fan unit 22 is disposed in front of the lower ventilation space 21. The seat fan unit 22 includes a case 23 and a seat fan 24, and external air sucked by the seat fan 24 is sent from the lower ventilation space 21 to the seat cushion 18, or conversely, the surface of the seat cushion 18. Air can be sucked from. The seat inner shell 17 can be elastically deformed so as to sink downward when seated. Therefore, the seat enclosure member 20 has a space between the seat outer member 18 so that elastic deformation of the seat inner shell 17 due to the seating is allowed. Note that the seat outer shell 19 can also be used as the enclosure member without providing the seat enclosure member 20 (this also applies to the backrest 9).

  As a heating means, a net-like heater may be arranged at the opening of the case 23 to dissipate the warm air from the lower ventilation space 21 to the seat inner shell 17, or as shown by a one-dot chain line in FIG. A planar heater 25 may be disposed on the upper surface of the seat inner shell 17. When the heater 25 is used, it is not necessary to drive the seat fan 24 during heating. As a cooling means, it can be said that it is sufficient to simply blow or suck the air with the seat fan 24. However, in order to enhance the cooling function, a small cooling unit may be provided. As the cooling unit, an electronic cooling type using a Peltier element can be adopted in addition to the one using a refrigerant.

  As the dehumidifying function, it can be said that it is sufficient to suck the air on the surface of the seat 8 with the seat fan 24. However, if a higher dehumidifying function is desired, a dehumidifying unit may be arranged. It is also possible to provide an environmental control unit similar to an air conditioner having a heating function, a cooling function, and a dehumidifying function.

  Power is supplied to the seat fan 24 from a battery 26 (see FIGS. 1 and 2B) provided on the lower surface of the seat outer shell 19. Further, a seat switch 27 (see FIG. 2B) for turning on and off the seat fan 24 is provided on the right side of the seat outer shell 19. The seat switch 27 is not limited to a simple ON / OFF function, but may have a temperature control function. For example, as a knob method for rotating the seat switch 27, the heating and cooling functions are set according to the rotation angle by setting the heating to the normal position and the cooling to the reverse rotation. It can be configured as follows.

  The backrest 9 has a structure similar to the seat 8. That is, the backrest 9 has a back inner shell 29 made of a resin such as PP and a back cushion 30 stretched thereon, and the back inner shell 29 is attached to a back outer shell 31 disposed behind the back shell. Yes. The back outer shell 31 is attached to the back frame 15.

  The back surface of the back inner shell 29 is covered from behind by a back enclosure member 32 whose corresponding range is curved in a forward-facing concave shape, and an upper ventilation space 33 is formed between the back inner shell 29 and the back enclosure member 32. ing. While the back enclosure member 32 has a non-ventilated structure, the back inner shell 29 has a large number of ventilation portions such as holes and slits, and the back cushion 30 also has air permeability.

  A back fan unit 34 is disposed below the upper ventilation space 33. The back fan unit 34 includes a case 35 and a back fan 36, and external air sucked by the back fan 36 is sent from the upper ventilation space 33 to the back cushion 30, or conversely, the surface of the back cushion 30. From the air, air can be sucked into the upper ventilation space 33. Also in the backrest 9, the heater 37 can be disposed on the front surface of the back inner shell 29 or the like. As in the case of the seat 8, the heating means and the cooling means can have various structures. In the present embodiment, the fan units 22 and 34 and the enclosure members 20 and 32 constitute temperature or humidity control means.

  The back fan 36 is also supplied with power from the battery 26. A back switch 38 (see FIG. 2B) for turning the back fan 36 on and off is provided on the left side of the seat outer shell 19. The back switch 38 can have a temperature adjustment function as well as a simple ON / OFF function.

  The backrest 9 is curved in a concave shape facing forward in plan view. Therefore, when the chair 2 is pushed so that the seat 8 enters the inside of the desk 1, the left and right sides of the backrest 9 hit the front end of the top plate 3. Therefore, as shown in FIG. 2 (D), a vertically long side groove 39 is formed on both the left and right sides of the back inner shell 29, and a wireless power receiving unit 40 is disposed in the side groove 39, whereby the wireless power transmission of the desk 1 is performed. Wireless energization from the unit 6 is enabled.

  The wireless power receiving unit 40 also has a basic configuration in which a power receiving coil is wound around a core, and is covered with a skin material 30 a that covers the back cushion 30 from the front. Therefore, the wireless power receiving unit 40 is not visible from the outside (in FIGS. 1 and 2, the wireless power receiving unit 40 is painted black to clarify the position, but is actually hidden by the skin material 30a). Since the height of the backrest 9 can be adjusted, the wireless power receiving unit 40 has a vertically long shape so as to overlap with the wireless power transmitting unit 6 at any height.

  As shown in FIG. 4, the current received by the wireless power reception unit 40 is transmitted to a power reception control unit 41 having an output circuit or the like, where it is converted into a DC power source such as 12 V or 24 V and then transmitted to the battery 26. . The power reception control unit 41 may be provided on either the seat 8 or the backrest 9.

(2). Summary / Modification of First Embodiment As described above, the chair user can drive the seat fan 24 or the back fan 36 to drive the temperature environment in contact with the body or The humidity environment can be adjusted. Therefore, a detailed environment adapted to each individual can be realized, and the air conditioning of the entire room can be increased during heating and lowered during cooling, or can be turned off. Can also be reduced.

  For example, when the chair is stored on the desk at the end of work, the wireless power receiving unit 40 provided on the backrest 9 comes close to the wireless power transmitting unit 6 of the desk 1 and energization from the wireless power transmitting unit 6 to the wireless power receiving unit 40 starts. For this reason, the battery 26 can be automatically charged using the time when the chair 1 is not used, such as the time after the end of work.

  In the case of wireless power transmission, it is necessary to activate the power transmission control unit 7, but the power transmission control unit 7 may be always activated to be in a standby state, or by switch means caused by storing the chair 2 in a desk. It may be activated. As a switch means resulting from storing the chair 2 in a desk, for example, a metal piece or a metal foil that can come into contact with the front end of the top plate 3 is provided on the left and right sides of the front surface of the backrest 9. It is possible to utilize the fact that the electrical resistance of the top 3 changes when a piece or metal foil comes into contact (when short-circuited).

  When a metal piece, a metal foil, or the like is provided on the front surface of the backrest 9, the wireless power receiving unit 40 can also be provided on the front surface of the backrest 9. However, reception of high-frequency radio waves oscillated from the wireless power transmission unit 6 1B, for example, a wireless power transmission unit 6 is provided in a deep part of the lower surface of the top plate 3 and a wireless power reception unit 40 is mounted on the seat 8 as shown by a one-dot chain line in FIG. May be provided. In this case, the planar view shape, area, or arrangement position of the wireless power transmission unit 6 and the wireless power reception unit 40 can be arbitrarily set. The wireless power transmission unit 6 has a length extending in the left-right direction, and the wireless power reception unit 40 can be provided only on one side or a part of both sides of the left and right sides of the seat 8 (the left and right positions of the seat 8 are not uniform). However, power is always transmitted.)

  As schematically shown in FIG. 2 (A), a display means for visually confirming that power is being supplied from the wireless power transmitting unit 6 to the wireless power receiving unit 40 on the front end surface of the top plate 3 and the upper surface of the backrest 9. As an example, a pilot lamp 43 can be provided. The pilot lamp 43 is preferably an LED system, and may be provided only on one of the top plate 3 and the backrest 9.

  Although the pilot lamp 43 of the top plate 3 is shown in a state of protruding from the front end of the top plate 3, it is preferable to set it on the same surface as the front surface of the top plate 3. The pilot lamp 43 may be kept on during energization (during charging), or may be blinked during energization. It is preferable to change the color during and after charging.

  In wireless power transmission from the wireless power transmission unit 6 to the wireless power reception unit 40, although there is a difference depending on a method or the like, there is a limit to an interval (distance) in which power can be transmitted (or power can be transmitted efficiently), and wireless transmission is performed when the distance increases to some extent. It becomes impossible and efficiency decreases. Therefore, it is necessary to store the chair in an appropriate position where wireless power transmission is possible. For this purpose, it is preferable to provide a means for allowing the user to visually recognize that the chair is in an appropriate position for wireless power transmission.

  As this recognition means, as shown in FIG. 3 (B), a line L for indicating a limit position where the front end of the seat 8 must be positioned is provided on the upper surface or the floor surface F of the top plate 3, A method of providing a line L for displaying the rear end of a range that should be positioned right below the front end of the top plate 3 at an appropriate position on the upper surface of FIG. Since the depth dimension of the chair 2 is generally known, even if the line L is provided on the top surface of the top board 3, it can be said that there is no problem with the user's recognition function. Further, the floor F below the top plate 3 can also be seen from an oblique direction, and it is estimated that there is no problem in visibility even if the line L is provided on the floor F.

  When the recognition means is provided on the floor F, it is possible to project a horizontally long projection. In addition, when a horizontally long protrusion is provided on the floor, it is possible to recognize that the caster 13 is in an appropriate position when the caster 13 gets over the protrusion (because the chair 2 does not enter the back of the desk 1 when the chair is in use). In the state of use, the caster 13 does not hit the projection, and therefore does not hinder use.) It can be said that providing the line L in the seat 8 is excellent in visibility. As specific means for the line, it is conceivable to sew a thread having a color different from the color of the skin material constituting the seat 8 or to make the color of the skin material different before and after the line L.

(3). Other Embodiments FIG. 5 and FIG. 6 show an embodiment in which claim 6 is embodied. In this embodiment, a sleeve cabinet 44 of a wagon type or the like is disposed in a space below the top plate 3. The sleeve cabinet 44 has a main body 45 that opens forward and a plurality of drawers 46 disposed therein. For example, an electric lock 48 is placed inside a hollow end plate 47 provided in front of the upper drawer 46. It is arranged.

  The electric lock 48 is of an electromagnetic solenoid type and has a dead bolt 48a protruding upward. By fitting the dead bolt 48a into the engagement hole 50 formed in the flange portion 49 of the main body 45, the upper drawer 46 is locked so as not to move forward (actually, the dead bolt 48a is connected to the movable iron core of the electromagnetic solenoid. It is configured separately.) And while providing the radio | wireless power transmission part 51 in the lower surface part (for example inside reinforcement 3b) of the top plate 3, the radio | wireless power receiving part 52 is provided in the upper surface part of the main body 45 in the sleeve cabinet 44, and the electric power reception control part from the radio | wireless power reception part 52 is provided. Power is supplied to the electric lock 48 through the battery 53 and the battery 54. Since the drawer 46 moves back and forth, power is supplied from the battery 54 to the electric lock 48 via the flexible cable 55.

  Now, at the end of work, the drawer 45 must be locked, but it may be forgotten. Therefore, in the present embodiment, if the electric lock 48 remains in the unlocked state, the chair 2 is pushed into the desk 1 to transmit power from the wireless power transmission unit 6 at the front end of the top plate 2 to the wireless power reception unit 40 of the chair. When started, the electric lock 48 is locked using the current flow as a trigger. For this reason, forgetting to lock the drawer 46 can be prevented. That is, the electric lock 48 is automatically locked based on the act of pushing the chair 2 into the desk 1 and storing it.

  The relationship between the chair 2 and the electric lock 48 is also shown in the block diagram of FIG. The control signal of the electric lock 48 can be transmitted wirelessly, but it is preferable to use a power line. It is possible to forget to switch off the fans 24 and 36 after leaving the seat. Also in this regard, as shown by a one-dot chain line in FIG. 4, when the switch control unit 55 is provided in the circuit, and the switches 27 and 38 remain ON with the wireless power transmission from the desk 1 to the chair 2 as an opportunity. Set to OFF. When the lighting device (stand) 57 partially shown in FIG. 1A is kept on, it can be turned off.

(4). Others The present invention can be embodied in various ways other than the above embodiment. For example, the chair is not limited to a rocking chair, and can be applied to various mobile chairs. It can also be applied to chairs without casters. As a means to activate the wireless power transmission unit, a human detection sensor such as an infrared method is provided on the top of the desk, etc., and it can be set so that the wireless power transmission unit is activated when it detects that a person has left the seat. Is possible.

  The battery of the chair is not limited to supplying power to a device for improving the work environment of the user, such as a temperature control device. For example, in a chair having a small table, it can also be used as a power source for a laptop computer or a portable terminal used on the table. Alternatively, a power source for an instrument such as an electric acupressure device can be used. When the fan unit is provided, for example, it can be arranged at the front and rear intermediate part and the rear end part of the seat, or at the upper and lower intermediate part and the upper end part of the backrest. In the case where an armrest device is provided on a chair as indicated by a dashed line in FIG. 1A, a wireless power receiving unit can be provided at the front end or upper end of the armrest.

  The present invention is actually applicable to desks and chairs. Therefore, it can be used industrially.

DESCRIPTION OF SYMBOLS 1 Desk 2 Chair 6 Desk wireless power transmission part 7 Desk power transmission control part 8 Seat 9 Backrest 10 Leg apparatus 13 Caster 17 Seat inner shell 18 Seat cushion 19 Seat outer shell 20 Enclosure member 21 Lower ventilation space 22 Seat fan unit (control) means)
25 Seat heater 29 Back inner shell 30 Back cushion 31 Back outer shell 32 Enclosure member 33 Upper ventilation space 34 Back fan unit (control means)
37 Back heater 40 Wireless power receiving section of chair 41 Power receiving control section of chair 43 Pilot lamp as an example of display means

Claims (6)

A mobile chair provided with a seat supported by legs and a battery, and a wireless power receiving unit that receives power transmitted from a wireless power transmitting unit provided on a desk and supplies the power to the battery at an appropriate part thereof Provided,
A movable chair. In addition, a backrest is provided, and either one or both of the backrest and the seat is provided with the wireless power reception unit, and temperature or humidity control means operating with the battery is provided.
The movable chair according to claim 1. A top plate and a support body for supporting the top plate, and a wireless power transmission unit for transmitting power to a wireless power receiving unit provided on a back of the chair is provided at a front end of the top plate, or the top plate A wireless power transmission unit for transmitting power to a wireless power reception unit provided on the chair seat,
desk. It is a combination of a desk having a top plate and a movable chair having a seat and a backrest, and a wireless power transmission unit is provided at the front end of the top plate in the desk, while the chair includes a battery, On the front part of the backrest of the chair, a wireless power receiving part is provided that can receive power from the wireless power transmitting part when the front part comes into contact with or approaches the front end of the top plate of the desk.
Combination of desk and chair. Display means for visually recognizing that the wireless power receiving unit is energized from the wireless power transmitting unit is provided on one or both of the top of the desk and the back of the chair,
A combination of a desk and a chair according to claim 4. By setting the chair so that its backrest is in contact with or close to the front end of the top of the desk and starting energization from the wireless power transmitting unit to the wireless power receiving unit,
An electric lock that locks the drawer in the sleeve cabinet arranged inside the desk operates in a locked state, an electric lock that locks a drawer provided in the desk operates in a locked state, and on the desk At least one of turning off the installed lighting stand and turning off the temperature or humidity control device provided in the chair is executed.
A combination of a desk and a chair according to claim 4 or 5.

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