JP2012024200A - Chair with battery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair with a battery in which an electric power can be conveniently supplied to the chair having a swivel function and full moveability.SOLUTION: The chair is configured to have a seat that rotates relative to the legs, wherein the legs are movably supported through casters. In the chair, a battery storage part 100 is provided at the seat integrally so that it can rotate together with the seat, wherein the battery storage part 100 has a putting-in port 100a, with a power receiving terminal 100d arranged at the front the putting-in port. Further, in the battery storage part 100, a chargeable battery 10 is mounted which is freely put in or withdrawn relative to the battery storage part and which is equipped with a power feeding terminal 10d, in a prescribed putting-in position and in a part electrically continuous to the power receiving terminal 100d.

Description

  The present invention relates to a chair with a battery, which is useful when applied to a chair which is provided with a rotation function and mobility by a caster and which requires a power source.

  2. Description of the Related Art Conventionally, in a chair in which a seat can be rotated with respect to a leg and the leg is supported so as to be movable via a caster, a battery is mounted on the chair. Yes.

  This is a chair having a function of blowing air to a seated user, and a seat portion having a first air suction portion for sucking air on the upper surface or a second portion for sucking air on the front surface. A backrest portion having an air suction portion, an air outlet for ejecting air toward the user, and air sucked from the first air suction portion or the second air suction portion. And a blowing means for sending it toward the outlet, and the blowing means is driven by a rechargeable battery. The battery is attached to the chair seat.

JP 2006-15023 A

  However, if the battery is fixed to the chair, as illustrated in the same document, the power receiving terminal provided at the tip of the elbow is connected to the power supply terminal provided on the desk, or the power cord is pulled from the battery to the outlet. Since it has to be connected, there is a problem that the chair cannot be used during charging or the use position of the chair is limited, and the power cord can be easily taken. Further, when the battery is exhausted, it is troublesome because it is necessary to remove the battery fixed to the chair seat and replace it with a new one. Furthermore, since the standard of the battery may be different depending on the electric / electronic devices provided in the chair, the use of the device may be restricted if the battery is integrated and fixed integrally.

  An object of the present invention is to provide a chair with a battery that can supply a user-friendly power source to a chair having a rotation function and a high mobility, paying attention to such a problem.

  In order to achieve this object, the present invention takes the following measures.

  That is, the battery-equipped chair of the present invention is such that the seat can be rotated with respect to the legs, and the legs are supported so as to be movable through the casters. A battery housing portion provided with a seat, or a portion that rotates together with the seat, and that can be inserted into or removed from the battery housing portion and is electrically connected to the power receiving terminal at a predetermined loading position. It is characterized in that a rechargeable battery having a power feeding terminal is attached.

  If comprised in this way, since only a battery can be removed and it can charge with an external charger, the situation where a chair cannot be used during charge and the situation where the use position of a chair is restricted can be canceled effectively. . In addition, the battery can be easily exchanged, and it is possible to develop a usage form in which the battery housing portion is shared between batteries of different standards. And since a battery accommodating part rotates with a seat, even if it provides wiring to a seat and an elbow from a battery accommodating part, it can avoid that a wiring state is influenced by rotation.

  In order to further improve handling convenience, the battery compartment is inclined obliquely downward from the insertion port toward the insertion destination, and the battery reaches a predetermined position by its own weight and establishes an electrical connection state. It is preferable to keep it.

  In order to effectively prevent a connection failure even with a simple operation, it is desirable to arrange a power receiving terminal at a position where the battery load is received in the battery housing portion.

  In particular, in a chair configured to allow the seat or back to which the battery storage unit is attached to be tilted backward, the battery storage unit has a horizontal inclination from the input port toward the input destination when the back or seat is at the maximum rearward tilt. It is preferable to configure so as not to be reversely inclined beyond.

  In order to avoid frequent charging of the battery and prolong the life of the battery, a part of the battery is provided with a remaining amount display unit, and the remaining amount display unit of the battery put in a predetermined position is externally provided in the battery housing unit. It is desirable to provide a window that can be viewed from the outside.

  In order to adopt such a battery housing part without difficulty, a mode in which the battery housing part is built in the basic constituent member of the chair or attached to the chair main body by a common attachment means together with the basic constituent member of the chair is suitable.

  Since the chair with a battery according to the present invention has the configuration described above, the arrangement of the chair and the like can be prevented from being restricted even when the battery is being charged, and the battery can be easily attached / detached and replaced. Thus, the present invention can be suitably applied to a chair having a function that requires a power source.

The perspective view which shows the chair with an air-conditioning function to which one Embodiment of this invention is applied. The same side view. FIG. The disassembled perspective view which shows the structure of the seat part air-conditioning mechanism integrated in the chair. The partial expansion perspective view which crushes and shows the principal part of the seat part air-conditioning mechanism partially. The disassembled perspective view which shows the structure of the elbow part air-conditioning mechanism integrated in the chair. Explanatory drawing of the elbow in which the operation means for air-conditioning operation is incorporated in the chair. The functional block diagram which shows the relationship between the air-conditioning mechanism in the same embodiment, an operation means, and a switching circuit. Functional explanatory diagram of the switching circuit. The perspective view which shows the structure of the battery accommodating part employ | adopted by the embodiment. The figure for demonstrating the mounting orientation of the battery accommodating part. The figure which shows the modification of this invention. The figure which shows the other modification of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 shows a chair to which this embodiment is applied. In this chair, the seat 2 can be rotated with respect to the leg 1, and the seat 2 and the back 3 are interlocked by a synchro-rocking mechanism (not shown) so that the seat 2 sinks backward in conjunction with the backward tilting motion of the back 3. It is supported by the leg 1 in a state. An elbow 4 is attached to the side of the seat 2, and the leg 1 is movable on the floor via a caster 11.

  As shown in FIG. 2, the seat 2 has a seat cushion 22 made of urethane or the like mounted on a resin outer shell 21, and the seat cushion 22 is covered with a tension fabric 23 together with the outer shell 21. It is.

  On the other hand, the elbow body 4x forming the outer shape of the elbow 4 has an elbow frame 41 which is a support portion fixed to the lower surface near the side edge of the outer shell 21 constituting the seat 2 with bolts, and the elbow frame 41. On the other hand, an elbow rest 42 that can be moved relative to each other via a link mechanism 40 is provided, and the elbow rest 42 is arranged on both sides of the seated person so as to extend back and forth as shown in FIG. It is movable between the first use position 42 (P) and the second use position 42 (Q) that is rotated 90 degrees and arranged in a state extending in the width direction in front of the seated person. .

  The seat 2 is provided with a seat air-conditioning mechanism 5 for generating a flow of air inside the seat 2 for receiving a power supply and adjusting the temperature of the seat surface as indicated by an arrow A in FIG. 2, the elbow part air-conditioning mechanism 6 is provided that generates a flow of air that blows out from the elbow rest part 42 toward the seating space as indicated by an arrow B in FIG.

Hereinafter, both the air-conditioning mechanisms 5 and 6 are demonstrated concretely. In providing the seat air conditioning mechanism 5, as shown in FIG. 4, recesses 22 a and 22 b are provided on the upper surface of the seat cushion 22 constituting the seat 2 or on the front hanging portion of the front edge, and these recesses 22 a and 22 b are provided. Is convex in a plan view in the unfolded state. Further, a backup plate 21b is attached to the front edge of the seat outer shell 21 that receives the seat cushion 22 in a front-down state. On the other hand, the seat air-conditioning mechanism 5 includes a convex channel forming member 51 having a flat portion 5a and a front hanging portion 5b corresponding to the recesses 22a and 22b, and a convex portion of the channel forming member 51. A fan (intake fan) 52 incidental to the motor M1 embedded in the fan and a stretch fabric 53 that wraps the flow path forming member 51 and the fan 52 are included. The blower 52 has an axial flow type blade 52x that generates an airflow in a direction along the axis of the motor M1. As shown in FIG. 5, the flow path forming member 51 has a configuration in which a three-dimensional lattice 51x having a skeleton 51a at a position corresponding to each side of a cube and a top plate 51c for pressure reception arranged on the top is connected by a connecting portion 51b. None, a flow passage that allows air flow is formed between the user and the seat cushion 22 shown in FIG. 4 while receiving the weight of the user. A combination of such a flow path forming member 51 with a fan and upholstery is generally known as an “air-conditioning bucket”. In the present embodiment, as shown in FIG. 4, a so-called air-conditioning bag is provided with a form suitable for being attached to a chair, and a mesh-like region is formed on a part of the upper surface of the rear portion of the upholstery 53 stretched on the upper surface side. After the discharge port 53a is formed and the air sucked through the blower 52 is circulated into the flow path forming member 51 as shown by the arrow A, the air is discharged from the discharge port 53a. . The flat part 5a of the seat part air-conditioning mechanism 5 is fitted into the recess 22a, and the front hanging part 5b is fitted to the recess 22b while being positioned on the front surface of the backup plate 21a of the outer shell 21, 52 is arranged so that the axis of the motor M1 faces in the front-rear direction and the suction port 52a faces forward. Then, the flow path forming member 51 is wrapped with a mesh fabric upholstery 23 constituting the seat surface as shown in FIG. 1 and FIG. It is fixed at an appropriate position on the lower surface side.
As a result, as indicated by an arrow A in FIG. 2, the air generated by the seat air-conditioning mechanism 5 is sucked from the front edge of the seat 2, circulated inside, and discharged to the upper rear edge. , Pumping out the heat accumulated in the seating surface, giving a cool feeling to the seat occupant's buttocks, exhausting upward from the rear edge side of the seat 2 and flowing to the front of the back 3 to give a cool feeling to the seated person's back . The upholstery 53 may be provided with an appropriate air permeability such that air is sucked from the seat surface side.

  On the other hand, as shown in FIG. 2, the elbow part air-conditioning mechanism 6 has a blow-out port 61 that opens on the upper surface of the elbow pad part 42 that constitutes the elbow body 4 x, a suction port 62 that opens on the lower surface of the elbow pad part 42, An internal flow path 63 formed between the blow-out opening 61 and the suction opening 62, and an air supply provided in the internal flow path 63 to receive air from the suction opening 62 and toward the seating space from the blow-out opening 61 And a blower 64 that blows out.

  FIG. 6 shows the elbow air conditioning mechanism 6 in an exploded manner, and detailed structures such as ribs are omitted. The elbow rest part 42 can be divided into a base 42a and a cover 42b. The base 42a is formed on the upper end of the elbow frame 41. The base 41a forms a link mechanism 40 with a pair of link members 40a and 40b. It is attached via n and is configured to cause a posture changing operation as shown in FIG. A suction port 62 is formed in the base 42a, and a blowing port 61 is opened in the cover 42b. The blower (exhaust fan) 64 attached to the motor M2 is disposed on the suction port 62 of the base 42a. A wind direction adjusting portion 65 made of a substantially hollow spherical member that forms the internal flow path 63 is disposed at a position where the outlet of the blower 64 and the outlet 61 are connected to each other via a spherical seat 66 so as to be swingable. . The blower 64 also has an axial flow type blade 64x that generates an air flow in a direction along the axis of the motor M2. The airflow direction adjusting unit 65 forms an internal flow path 63 between the movable suction port 65a and the movable blowing port 65b, and the movable blowing port 65b projects inwardly from the opening of the blowing port 61 of the cover 42b. The swinging function of the wind direction adjusting unit 65 is secured by being arranged, and the movable suction port 65a is secured the swinging motion in a state where the outlet of the blower 64 is swallowed as shown by a schematic broken line in FIG. . As described above, the blower 64 and the airflow direction adjusting unit 65 are incorporated as a unit between the suction port 62 and the blowout port 61 of the elbow air conditioning mechanism 6.

  In the assembled state, as shown in FIGS. 2 and 7, etc., the outlet 61 opens on the upper surface of the elbow rest 42, while the suction opening 62 is formed on the lower surface of the elbow rest 42 facing the outlet 61. The link mechanism 40 is located between the lower surface of the elbow pad 42 and the base 41a formed at the upper end of the elbow frame 41. However, the suction port 62 is not blocked by the operation of the link mechanism 40. As described above, the shape and position of the link member 40a that supports the front side of the link mechanism 40, and the opening position and diameter of the suction port 62 are defined.

  Thus, the user can freely change the blowing direction at the first use position 42 (P) shown in FIG. 3 in which the elbow rest 42 is arranged on the side of the seated person using the wind direction adjusting unit 65. The blowing direction can be freely changed even at the second use position 42 (Q) in which the elbow rest 42 is arranged in front of the seated person, and the elbow rest 42 is placed between the use positions P and Q. Even when placed at each position, the direction of blowing can be changed freely, so the seated person can get a cool feeling by sending wind directly to the desired part such as the face, chest, lower abdomen, thigh, etc. It is.

  And in this embodiment, the operation means 7 which put together the switching operation function with respect to the said seat part air-conditioning mechanism 5 and the switching operation function with respect to the elbow part air-conditioning mechanism 6 is provided in the elbow 4 as shown in FIG. According to the input operation situation, the power supply state for the seat air conditioning mechanism 5 and the elbow air conditioning mechanism 6 is switched through the switching circuit 8 shown in FIG.

  As shown in FIG. 7, the operating means 7 is a part of the elbow 4 that can be operated by the seated person in the sitting position, specifically in the vicinity of the base 41a of the right elbow frame 41 as viewed from the seated person in this embodiment. A seat air-conditioning switch 71 that is attached to a box 70 provided at a position where it can be used with the hand resting on the elbow rest 42, and that accepts an operation for switching on / off the power supply to the seat air-conditioning mechanism 5; An elbow air conditioning knob 72 that receives an operation for switching the power supply level in stages including on / off with respect to the elbow air conditioning mechanism 6 and a main switch 73 that performs on / off switching of the entire air conditioning are provided. In this embodiment, the seat air-conditioning switch 71 and the main switch 73 are provided on the upright standing surface as viewed from the seated person, and the elbow air-conditioning knob 72 is provided on the front standing surface, but the mounting mode is limited to this. It is not a thing.

  As another switching function, this embodiment embeds contact type seating switches 9 in two places of the seat 2 as shown in FIG. 4, thereby turning off the entire air-conditioning function for power saving when leaving the seat. Like to do. The seating switch 9 is provided at two diagonal positions so as to be simultaneously separated in the width direction and the depth direction of the seating surface, and the switch body between the three-dimensional lattices 51x and 51x of the flow path forming member 51 shown in FIG. 90 is placed with the detection end 91 facing upward, and the detection end 91 can be protruded and retracted with respect to the switch body 90 and is elastically biased in the protruding direction. It is something to detect. The seat switch 9 is encased in a stretch fabric 53 together with the flow path forming member 51 to form the seat air conditioning mechanism 5 shown in FIG. 4, and this seat air conditioning mechanism 5 further includes a stretch fabric 23 of the seat 2 shown in FIG. By being covered, the detection end 91 of the seating switch 9 is arranged in a state of facing the stretch fabrics 53 and 23. Then, when the detection end 91 is pressed through the upholstery 23 and 53 by the load of the seated person, the switch is turned on to detect the pressure receiving state.

  FIG. 9 schematically shows the switching function of the switching circuit 8 described above. In this embodiment, the battery 10 is adopted as the power source, and the battery 10 and the motor M1 of the seat air conditioning mechanism 5 are connected via the main switch 73, the seating switch 9, and the seat air conditioning switch 71. And the motor M <b> 2 of the elbow air conditioning mechanism 6 are connected via a main switch 73, a seating switch 9 and an elbow air conditioning knob 72. As a switching function, when the seat switch 9 detects the seating while the main switch 73 is ON, the seat air-conditioning mechanism according to the operation status of the seat air-conditioning switch 71 and the elbow air-conditioning knob 72. When the power supply to the elbow air conditioning mechanism 6 is turned on and off and the energization amount (that is, the air flow) is switched, and the two seating switches 9 are both turned off and the absence of the seat is detected, the seat air conditioning is performed. The power supply to the motors M1 and M2 of the seat air-conditioning mechanism 5 and the elbow air-conditioning mechanism 6 is stopped regardless of the operation status of the switch 71 and the elbow air-conditioning knob 72. Of course, both air-conditioning mechanisms 5 and 6 are disconnected from the battery 10 even when the main switch 73 is in the OFF state. The figure only illustrates one function, and the configuration of the operation means 7 and the switching function of the switching circuit 8 can be variously modified.

  Furthermore, in this embodiment, as shown in FIG.2 and FIG.10, the battery 10 is detachably set in the battery accommodating part 100 provided in a part of chair. The battery housing portion 100 is made of resin, and is supported by being hung together with the elbow 4 by using a bracket (not shown) when attaching the base of the elbow frame 41 to the outer shell 21 of the seat 2. Thus, the guide surface 100b for the battery 10 to be inserted is inclined so that the insertion port 100a opens obliquely upward toward the rear, and the power receiving terminal 100d is arranged on the front rear surface 100c to be the insertion destination. On the other hand, the battery 10 can be inserted into or removed from the battery housing portion 100 and can be removed and charged by an external charger. The power receiving terminal 100d is placed on the forward facing surface 10c at a predetermined insertion position. A power supply terminal 10d is provided at a portion that is electrically connected to the power supply terminal, and a remaining amount display unit 10e that notifies the remaining amount of the battery by the lighting state of the LED is provided beside it. The battery 10 includes a charging terminal (not shown).

  When the battery 10 is inserted into the battery housing portion 100 from the insertion port 100a, the battery 10 slides along the guide surface 100b to reach a predetermined position with its own weight, and the power supply terminal 10d is connected to the power supply terminal 10d using the battery load. An electrical connection state with the power receiving terminal 100d is established. A window 100e for opening the remaining amount display portion 10e of the battery 10 is opened at a position adjacent to the rearward surface 100c of the battery housing portion 100, and the remaining amount display portion 10e of the battery 10 inserted into a predetermined position. Is opened through the window 100e so that the battery remaining amount can be visually recognized from the front of the chair as indicated by an arrow F in FIG. As described above, the chair 2 has the seat 2 synchronized with the back 3 and tilts backward, and the battery accommodating portion is between the non-rearward tilt shown in FIG. 11A and the maximum rearward tilt shown in FIG. The angle of 100 changes with the angle of the seat 2. For this reason, the battery housing portion 100 described above is configured so that the inclination of the guide surface 100b extending in the direction from the insertion port 100a toward the insertion destination does not reverse in the reverse direction when the maximum backward inclination shown in FIG. The inclination angle at the time of non-rearward inclination shown in FIG. 11A is set.

  In the present embodiment, wirings are basically omitted. However, in order to realize the circuit configuration of FIG. 8 and FIG. 9 without exposing the wirings to the outside as much as possible, the elbow frame 41 is appropriately selected. Wirings are routed inside and outside the outer shell 21.

  In addition, by using a heater in part of the seat air conditioning mechanism 5 and the elbow air conditioning mechanism 6 in the above, it is also possible to generate warm air and input heat to the seated person.

  As described above, the chair with a battery according to the present embodiment is such that the seat 2 is rotatable with respect to the leg 1 and the leg 1 is supported so as to be movable via the caster 11. A battery housing part 100 having a mouth 100a and a receiving terminal 100d disposed at the charging destination is provided integrally with the seat 2 so as to rotate together with the seat 2, and can be inserted into or removed from the battery housing part 100. A rechargeable battery 10 having a power feeding terminal 10d is attached to a portion that is electrically connected to the power receiving terminal 100d at a predetermined charging position.

  If comprised in this way, since only the battery 10 can be removed and it can charge with an external charger, the situation where a chair cannot be used during charge and the situation where the use position of a chair is restricted can be canceled effectively. it can. Moreover, the battery can be easily exchanged, and a usage mode in which the battery housing unit 100 is shared between batteries having different standards can be newly developed. And since the battery accommodating part 100 rotates with the seat 2, even if it provides wiring from the battery accommodating part 100 to the seat 2 and the elbow 4, it becomes possible to avoid effectively that a wiring state is influenced by rotation.

  In this case, the battery housing part 100 is inclined obliquely downward from the insertion port 100a toward the insertion destination, so that the battery 10 reaches a predetermined position by its own weight and establishes an electrical connection state. It is possible to finish the setting of the battery 10 with just a simple operation, eliminating the troublesomeness of moving the chair and connecting the cords one by one, and effectively improving the convenience of handling.

  In particular, the power receiving terminal 100d is arranged at a position for receiving the battery load in the battery housing portion 100, and the battery load acts in a direction to help and maintain the connection between the terminals 10d and 100d, so that even a simple operation can be connected. It is possible to effectively avoid the failure.

  In addition, this chair has a seat 2 to which the battery housing portion 100 is attached tilted backward, but the battery housing portion 100 is inclined from the loading port 100a toward the loading destination even when the seat 2 is tilted back to the maximum. Therefore, even if the seat 2 is synchronized with the back 3, the battery 10 can be effectively prevented from being poorly connected or dropped when the seat 2 is tilted backward.

  Furthermore, in this embodiment, a remaining amount display portion 10e is provided in a part of the battery 10, and the battery housing portion 100 has a window 100e that allows the remaining amount display portion 10e of the battery 10 inserted into a predetermined position to be visually recognized from the outside. Therefore, the remaining amount of the battery 10 becomes clear in the state of normal use, and it is possible to avoid the frequent charging of the battery 10 and to efficiently use the battery and extend the life of the battery. .

  Moreover, since the battery accommodating part 100 of this embodiment is attached to the lower surface of the seat 2 which is a chair main body by the bolt etc. which are common attachment means with the elbow 4 which is a basic structural member of a chair, an attachment means is separately provided. Use can be made unnecessary.

  The specific configuration of each unit is not limited to the above-described embodiment.

  For example, the remaining amount display unit 10e may be provided at a position that is visible from the side or the back of the chair.

  Moreover, it is not necessary to secure a separate mounting location by building the battery housing part in the basic structural member of the chair.

  As an example, what is shown in FIG. 12 is a battery housing portion 200 for detachably incorporating the battery 20 into the armrest portion 242. In the figure, a cover 200a is provided on the upper surface of the elbow rest 242. The cover 200a is opened and the battery 20 can be detachably attached and inserted, and a power supply terminal (not shown) of the battery 20 and a power reception terminal (not shown) in the battery housing part 200 are shown. The connection status with can be established. Even if it does in this way, the effect according to the above-mentioned embodiment is produced.

  Furthermore, as shown in FIG. 13, the battery housing part 300 may be provided on the back support rod 31. Also in this case, if it is configured to establish a connection state between a power supply terminal (not shown) of the battery 30 and a power reception terminal (not shown) in the battery housing part 200 simply by inserting and removing the battery 30, the above is applied. The function and effect are exhibited. In particular, the back support rod 31 goes around from the rear edge of the seat 2 to the lower surface side, and also around the base of the elbow frame 41 etc. that supports the elbow 4, so if the back support rod 31 is made hollow. The wiring from the battery housing part 300 can be routed in a state of being concealed inside the back support rod 31, and in the above embodiment, the power supply to the seat air conditioning mechanism 5 arranged inside the seat 2 and the elbow 4 Electric power can be effectively supplied to the elbow air conditioning mechanism 6 disposed inside. Also in this case, it is also effective to provide a lid member 300a that can be opened and closed at a position that closes the insertion port of the battery housing unit 300, thereby improving appearance and preventing entry of dust and the like. Of course, it is effective to employ a similar lid member for the battery housing portion 100 of the above embodiment.

  Furthermore, if the remaining amount display part 30e of the battery 30 is made visible by providing a transparent window 300e in a part of the battery housing part 300 as shown in FIG. The remaining amount confirmation unit 30e is arranged on the back of the easy chair, and such a configuration is also effective in producing a chair with an intelligent atmosphere.

  Of course, the use of the battery is not limited to the air conditioning mechanism described above.

  Other configurations can be variously modified without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Leg 2 ... Seat 3 ... Back 10 ... Battery 10d ... Power supply terminal 10e ... Remaining amount display part 11 ... Caster 100 ... Battery accommodating part 100a ... Input port 100d ... Power receiving terminal 100e ... Window

Claims (7)

In a chair in which a seat is rotatable with respect to a leg and the leg is supported movably through a caster,
A battery housing portion having a loading port and a receiving terminal disposed at the loading destination is provided integrally with a seat or a portion that rotates together with the seat, and can be inserted into or removed from the battery housing portion at a predetermined loading position. A rechargeable battery equipped with a power supply terminal is attached to a portion that is electrically connected to the power receiving terminal. The battery-equipped chair according to claim 1, wherein the battery housing portion is inclined obliquely downward from the insertion port toward the insertion destination, and the battery reaches a predetermined position by its own weight and establishes an electrical connection state. The chair with a battery according to claim 2, wherein the power receiving terminal is arranged at a position where the battery load is received in the battery housing portion. The battery housing part is attached to a seat or a back, and the seat or the back is a chair configured to be able to tilt backward, and the battery housing part is directed from the charging port to the charging destination when the back or the seat is tilted to the maximum rearward position. The chair with a battery according to any one of claims 2 and 3, wherein the inclination does not become a reverse inclination beyond the horizontal. The battery is provided with a remaining amount display part in a part of the battery, and the battery housing part is provided with a window that allows the remaining amount display part of the battery put into a predetermined position to be visually recognized from the outside. Chair with battery as described. The chair with a battery according to claim 1, wherein the battery housing portion is built in a basic component of the chair. The chair according to any one of claims 1 to 5, wherein the battery housing portion is attached to the chair body by a common attachment means together with the basic constituent members of the chair.

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