JP6565281B2 - Chair - Google Patents

Description

  The present invention relates to a chair, and more particularly to a chair provided with a wake-up device that gives a stimulus to a seated person of the chair.

For the purpose of preventing the occurrence of an accident during driving of a vehicle, a technique for preventing a decrease in arousal level of a vehicle driver is known.
For example, Patent Literature 1 discloses a technique for applying a vibration stimulus to a seated person using a vehicle seat including an electric device such as a heart rate sensor or a respiration sensor and a motor.
On the other hand, a technique for preventing a decrease in arousal level, in other words, preventing a dozing, can be used for a legged chair for office work and the like for the purpose of efficiently studying and working in addition to a vehicle seat.

However, when mounting electrical equipment on a chair with legs, it is possible to secure mounting space and mounting strength for batteries, ECUs (Electrical Control Units), etc., unlike vehicle seats where electrical equipment can be placed inside the vehicle. It was difficult.
Here, as a technique using an electric device for a legged chair, Patent Document 2 discloses a control including a battery and a control device in which a sensor is arranged on a seating surface of a legged chair in order to correct a posture of a person who is seated. A unit (a member that holds a battery and a control device is referred to as a holding member) is attached to a lower surface of a seat portion of a chair (described as a seating portion in Patent Document 2), and the posture of a seated person is determined by the presence or absence of a sensor detection signal A technique for detecting the above is disclosed.

JP 2013-220810 A JP-T-2006-503599

In the chair with legs described in Patent Document 2, since the control unit is simply attached to the lower surface of the seat, the amount of protrusion from the lower surface of the seat of the control unit is large. For this reason, the seated person may feel uncomfortable when the seated person's leg hits the control unit.
In addition, when the control unit and the control lever for adjusting the height of the chair are on the same side in the width direction of the chair, the control unit may hit the hand when trying to operate the control lever. I felt uncomfortable.

In addition, heat generated from the battery and the control device is trapped in the control unit, which may reduce the operation speed of the control device.
Furthermore, it is difficult to secure a space for handling the harness attached to the control unit.

In addition, since the control unit is provided below the chair, it is difficult for the seated person to replace or charge the battery constituting the control unit while sitting.
In particular, in a chair with legs with casters, when a charging cable or the like is attached to the chair with legs, the charging cable or the like may get entangled with the chair, and the attachment of the charging cable has been a problem.

The present invention has been made in view of such problems, and an object of the present invention is to provide a chair to which an awakening device is attached by effectively using the space of the chair.
Another object is to suppress the amount of protrusion of the control device from the seat and to prevent the control device from interfering with the leg of the seated person.
Another object is to prevent the operating speed of the control device from being reduced by suppressing the thermal effect on the control device.
In addition, the control device and the battery can prevent the operation unit from being obstructed and improve the usability of the operation unit.
Still another object is to provide a space around a harness in a legged chair.
Still another object is to facilitate replacement or charging of a battery provided in a chair with legs.

  According to the chair according to the present invention, the subject is a seat having a seat frame, a support that supports the seat from below, a leg member attached to the support, and a stimulation device that stimulates a seated person. And a control device that controls the stimulating device, and a wake-up device that wakes up the occupant and a battery that supplies power to the wake-up device, wherein the seat frame is a lower frame And an upper frame portion that is disposed so as to overlap the lower frame portion in the vertical direction and that does not overlap at least partly, and the control device includes the upper frame portion. The problem is solved by disposing a part below.

  According to the above configuration, the control device constituting the awakening device is disposed below a part of the upper frame portion that does not overlap the lower frame portion, so that the space of the chair can be effectively used. The amount of protrusion of the control device from the seat portion can be suppressed, and the control device can be prevented from interfering with the leg of the seated person.

Moreover, it is preferable that the battery is arranged on the control device so as to overlap in the vertical direction.
According to the above configuration, the battery is disposed so as to be stacked in the vertical direction on the control device, so that the battery or the control device is prevented from projecting in the width direction of the chair. It can be suppressed from getting in the way.

Furthermore, it is preferable that the battery is disposed below the control device.
According to the above configuration, since the battery is disposed below the control device, the battery is provided at a position away from the seat, and the battery remains in a state where the seated person is seated on the seat. Can be easily installed and removed.

Moreover, it is preferable when the one where a horizontal width or depth is larger is provided in the upper side among the said control apparatus and the said battery.
According to the said structure, the one where a width | variety or depth is large is provided in the upper side among a control apparatus and a battery, and the place of the seated person's leg which is a space under the control apparatus and a battery can be expanded. it can.

Of the control device and the battery, the one with the larger calorific value may be provided on the lower side.
According to the said structure, when the one with the larger calorific value is provided in the upper side among a control apparatus and a battery, compared with the heat | fever being stood between a lower thing and a seat part, the calorific value is large. When one is provided on the lower side, heat can be effectively released downward.

Further, it is preferable that an operation unit having a movable range and capable of changing the state of the chair is provided, and the control device and the battery are provided at a position avoiding a movable range of the operation unit.
According to the above configuration, since the control device and the battery are provided at a position that avoids the movable range of the operation unit, the operation unit is prevented from being obstructed and the operation unit is comfortable to use. Can be.

In addition, it is preferable that the control device includes a connector for connecting to the battery , and the connector is provided at a position avoiding a movable range of the operation unit.
According to the above configuration, since the connector is provided at a position that avoids the movable range of the operation unit, it is possible to prevent the operation unit from being obstructed and to improve the usability of the operation unit.

Further, it is preferable that the connector is disposed at a position that does not overlap the operation portion in the vertical direction.
According to the above configuration, the connector is disposed at a position that does not overlap with the operation unit in the vertical direction, so that when the seated person operates the operation unit by extending his / her hand from the vertical direction of the operation unit to the operation unit. The connector and the harness connected to the connector can be prevented from interfering with the operation, and the usability of the operation unit can be improved.

The connector may be disposed on the opposite side of the chair in the width direction with respect to the side on which the operation unit is located.
According to the above configuration, the connector is disposed on the side opposite to the width direction of the chair with respect to the side on which the operation unit is located, so that the seated person extends his hand from the operation unit side in the width direction of the chair. When operating the connector, it is possible to prevent the connector and the harness connected to the connector from interfering with the operation, and the usability of the operation unit can be improved.

Further, it is preferable that the control device is disposed in front of the support column, and the connector is disposed in front of the control device.
According to the said structure, a seating person can perform easily the insertion / extraction of the harness to a connector from the front side of a chair in the state sitting on the chair because the connector is arrange | positioned at the front side of a control apparatus.

The connection port of the connector is preferably provided at a position avoiding a position facing the support column.
According to the said structure, attachment / detachment of the harness to a connector can be easily performed without a support | pillar becoming obstructive, and a maintenance becomes easy.

Moreover, the connection port of the connector may be disposed at a position facing the support column.
According to the above configuration, the connection port of the connector is disposed at a position facing the support column, so that it is possible to suppress the intrusion of other objects in the vicinity of the connection port, and the harness can be pulled by being pulled by another object. Can be prevented from falling out of the connection port.

In addition, the awakening device includes a sensor for detecting a seated person's state, the control device is connected to the sensor via a harness connected to the connector, and the connector is a connection port of the connector. Is preferably arranged in a direction facing the sensor.
According to the said structure, the length of the harness which connects a sensor and the connector of a control apparatus can be shortened because the connector is arrange | positioned in the direction where the connection port of a connector opposes a sensor.

In addition, it is preferable that a case is provided that is attached to the front side of the back surface of the seat portion and holds the battery, and the front side of the case is opened in a size that allows the battery to be taken in and out.
According to the said structure, the front side of a case is open | released by the magnitude | size which can take in / out a battery, and it becomes easy to insert / remove a battery from the case in the seated state.

The case preferably holds the battery and the control device.
According to the said structure, since the case hold | maintains the battery and the control apparatus and is unitized, these attachment to a seat part becomes easy.

The case is preferably formed with a slit.
According to the said structure, heat dissipation can be improved because the slit is formed in the case.

Moreover, it is preferable that the case is formed in a size that fits between adjacent foot portions among a plurality of foot portions constituting the leg member.
According to the said structure, it can suppress that a case obstruct | occludes a seated person's leg etc. because the case is formed in the size which fits between adjacent legs.

Further, the case preferably has a fastened portion fastened to the upper frame portion by a fastener, and the fastened portion is preferably formed behind the front end of the case in the front-rear direction of the chair. .
According to the above configuration, the fastened portion of the case is formed behind the front end of the case in the front-rear direction of the chair, so that the portion of the seat portion fastened by the fastener together with the fastened portion It can arrange | position behind the front end of. For this reason, it can suppress that a seated person's hand touches this site | part and feels uncomfortable.

Further, it is preferable that a gap is formed between at least a part of the case other than the fastened portion and the upper frame portion.
According to the above configuration, since the gap is formed between at least a part of the case other than the fastened portion and the upper frame portion, air can be circulated through the gap and heat dissipation can be improved. .

The battery is preferably a wireless power supply battery.
According to the above configuration, the battery can be easily charged by adopting the wireless power feeding battery. In particular, when a wireless power supply type battery is employed, a cable that connects the battery and an outlet does not get caught in a chair caster or the like unlike a case where a wired power supply type charging battery is used.

According to the present invention, the space of a chair can be used effectively.
Moreover, according to this invention, it can suppress that a battery or a control apparatus obstruct | occludes a seated person's leg.
Further, according to the present invention, it is possible to easily attach and remove the battery while the seated person is seated on the seat.
Further, according to the present invention, the space below the control device and the battery can be widened.
Moreover, according to this invention, the heat which arises from a control apparatus and a battery can be discharge | released effectively.
Moreover, according to this invention, it can avoid that a control apparatus and a battery obstruct the operation of an operation part, and can make the usability of an operation part favorable.
Further, according to the present invention, it is possible to improve the usability of the operation unit by avoiding the connector from interfering with the operation of the operation unit.
Moreover, according to this invention, it can avoid that the harness connected to a connector and a connector becomes obstructive, and can improve the usability of an operation part.
Moreover, according to this invention, the insertion / extraction of the harness to a connector can be easily performed from the front side in the state sitting on the chair.
In addition, according to the present invention, the harness can be easily attached to and detached from the connector without the obstacle being in the way, and the maintenance is facilitated.
In addition, according to the present invention, it is possible to suppress the intrusion of other objects in the vicinity of the connection port of the connector, and it is possible to prevent the harness from falling out of the connection port by being pulled by the other object.
Moreover, according to this invention, the length of the harness which connects a sensor and the connector of a control apparatus can be shortened.
Further, according to the present invention, the battery can be easily taken in and out from the case in the seated state.
Moreover, according to this invention, attachment to the seat part of a battery and a control apparatus becomes easy.
Furthermore, according to this invention, the heat dissipation of the case holding a battery etc. can be improved.
Moreover, according to this invention, it can suppress that a case obstruct | occludes a seated person's leg etc.
Moreover, according to this invention, it can suppress that a seated person's hand touches the site | part of the seat part fastened by a fastener with a to-be-fastened part, and feels uncomfortable.
Moreover, according to this invention, air can be distribute | circulated through the clearance gap between a case and an upper side frame part, and heat dissipation can be improved.
Moreover, according to this invention, it can prevent that the cable which connects a battery and an electrical outlet is caught in the caster etc. of a chair.

It is an external view of the chair with a leg concerning the embodiment of the present invention. It is a lower side perspective view which shows the cushion pan lower surface to which a holding cover is attached. It is typical sectional drawing which shows the III-III cross section of FIG. It is a disassembled perspective view, such as a control apparatus attached to a chair with a leg, a battery, and a holding cover. It is a perspective view which shows the holding cover of the state which hold | maintained the control apparatus and the battery. It is a typical front view which shows the state in which the holding cover holding a control apparatus and a battery was attached to the lower surface of the cushion pan. It is typical sectional drawing which shows the VII-VII cross section of FIG. It is a typical side view which shows the state which fell the chair with a leg sideways. FIG. 2 is a schematic cross-sectional view illustrating an example in which a harness is connected to the rear of the control device, showing the IX-IX cross section of FIG. 1. It is a schematic diagram which shows a chair with a leg provided with a wireless power feeder.

The present invention relates to a chair, and more particularly, to a chair provided with an awakening device (a dozing prevention device).
The embodiment described below is merely an example for facilitating the understanding of the present invention, and does not limit the present invention. That is, the shape, dimensions, arrangement, and the like of the members described below can be changed and improved without departing from the spirit of the present invention, and the present invention naturally includes equivalents thereof.
Hereinafter, a legged chair S according to an embodiment of the present invention, an ECU 7 provided in the legged chair S, a battery 8, and a holding cover 71 that holds them will be described with reference to the drawings.
In the following description, the front-rear direction indicates the front-rear direction of the chair, and the left-right direction is also referred to as the width direction of the chair, indicating the left-right direction of the chair.

First, with reference mainly to FIGS. 1-3, the main structures of the chair S with a leg are demonstrated. Here, FIG. 1 is an external view of a legged chair S according to an embodiment of the present invention, FIG. 2 is a lower perspective view showing a lower surface of a cushion pan F21 to which a holding cover 71 is attached, and FIG. It is typical sectional drawing which shows the III-III cross section.
The legged chair S mainly includes a leg member F3, a cushion pan F21 attached to the leg member F3 and supporting the buttocks of the seated person, a back pan F22 that is a backrest connected to the cushion pan F21, and awakening. It is comprised from the apparatus U.

The leg member F3 is composed of a leg part F31 branched into four parts and a column cylinder F30 continuously formed on the leg part F31, and is mainly made of a resin material.
A caster F31a is attached to each of the four branches of the foot F31.
In addition, the foot portion F31 is configured to branch into four in this embodiment, but may be configured to branch into three or more, and may not include the caster F31a.

The column cylinder F30 is fixed at the center of the foot part F31 and extends upward. In a column cylinder F30, a column F21a described later is passed and fixed.
As shown in FIG. 2, an operation lever 10 having a movable range in the vertical direction is disposed on one side in the width direction of the chair in the column cylinder F30.
The operation lever 10 according to the present embodiment corresponds to the operation unit according to the present invention, and has a function of adjusting the height of the cushion pan F21.
The operation lever 10 is not limited to the one having a height adjustment function, and for example, the control lever 10 can change the angle of the back pan F22 with respect to the cushion pan F21, or the rebound strength against the seated person leaning against the back pan F22. It may have a function to adjust.

The cushion pan F21 corresponds to a seat according to the present invention. As shown in FIG. 2, the cushion pan F21 is made of a metal seat frame 74, a resin plate F21d attached to the upper portion of the seat frame 74, and a resin. And a pad portion F21e with a skin attached to the upper part of the plate F21d.
The seat frame 74 has a lower frame part F21b extending in the width direction of the chair and an upper side above the lower frame part F21b, and an upper side extending so as to cross the lower frame part F21b. Frame portion F21c.

  The lower frame portion F21b extends in the width direction of the chair on the rear side of the cushion pan F21, and a through hole F21f is formed at the center of the lower frame portion F21b through which the support column F21a passes.

The upper frame part F21c extends in the front-rear direction of the chair at the center in the width direction of the chair, and is joined to the lower frame part F21b by welding. At the center of the upper frame portion F21c, a pipe-like column F21a extending perpendicularly to the periphery is joined by welding or the like.
In addition, two recesses F21g extending in the front-rear direction are formed on the front side in the front-rear direction of the chair with respect to the lower frame part F21b in the upper frame part F21c. The upper frame portion F21c is formed to be curved so that the recess F21g undulates in the width direction of the chair, so that the rigidity is enhanced.

A tapping screw N1 (refer to FIG. 4) corresponding to the fastener according to the present invention is a portion that does not overlap the lower frame portion F21b in the upper frame portion F21c, and is located on both outer sides in the width direction of the chair from the recess F21g. Two through holes F21h are formed on the front and rear sides.
Specifically, the through hole F21h is for passing the upper frame portion F21c and the lower frame portion F21b joined together and a tapping screw N1 for attaching the holding cover 71 described later to the resin plate F21d. .

  As shown in FIG. 3, the resin plate F <b> 21 d has a plurality of holes F <b> 21 j formed in the vertical direction for dissipating heat transmitted from the seated person's buttocks. The punch hole F21j has a heat radiating function and also has a function of inserting a harness 11 described later up and down the resin plate F21d.

The pad portion F21e with an epidermis is composed of a pad portion F21o made of a cushion material such as urethane and an epidermis covering the pad portion F21o, and a respiration sensor 9 described later is disposed between the epidermis and the pad portion F21o. Yes. In FIG. 3 and FIG. 9 described later, the epidermis pad portion F21e is shown with the epidermis omitted.
As shown in FIG. 3, the pad portion F21o is formed with a guide hole F21k for guiding the harness 11 to the ECU 7 described later.
The guide hole F21k is formed so as to extend obliquely forward and downward from the front of the respiratory sensor 9 provided on the upper surface of the pad portion F21o to the vicinity of the ECU 7.

The back pan F22 is connected to the rear portion of the cushion pan F21 and is formed to extend substantially vertically upward from the cushion pan F21.
A vibration device 35 is attached to the center of the back pan F22 as shown in FIG. As will be described in detail later, the vibration device 35 is a component of the awakening device U, and applies vibration stimulation to the seated person in accordance with a control signal from the ECU 7.

<About awakening equipment>
Next, the awakening device U will be described.
The awakening device U according to the present embodiment mainly includes an ECU 7, a battery 8, a respiration sensor 9, and a vibration device 35.

  The vibration device 35 corresponds to the stimulation device according to the present invention, and is a device including a so-called “vibration motor” composed of a known unbalanced mass motor.

The ECU 7 is a central function that comprehensively executes electric control. In this example, the ECU 7 has a function of driving and controlling the vibration device 35 based on a potential difference signal converted into a digital signal indicating a breathing interval.
The ECU 7 according to the present embodiment is a general-purpose ECU in terms of hardware, which includes a CPU, ROM, RAM, and the like for arithmetic control.
A harness 11 connected to the breathing sensor 9 shown in FIG. 3, a harness (not shown) connected to the vibration device 35, and a cable (not shown) connected to the battery 8 are connected to the connection port 70 a of the connector 70 provided in the ECU 7. Is connected.

The signal input from the respiratory sensor 9 to the ECU 7 via the connector 70 is a potential difference signal converted into a digital signal by the signal processing circuit, and the output is electric power for driving the vibration device 35. is there.
The RAM temporarily stores parameters including signals under calculation control and input / output signals, and functions as a storage unit that stores potential difference signals converted to digital signals and other signals.

The ROM stores a program executed by the CPU and a parameter of a predetermined value. For example, a reference value setting unit that sets a predetermined reference value, a determination unit that determines a wakefulness based on the reference value, and the vibration device 35 A drive unit or the like for driving is recorded as a program.
The drive unit has a function of driving the vibration device 35 by supplying power in accordance with an instruction from the CPU.
The CPU instruction signal is formed by calculating a signal from the respiration sensor 9.
That is, the signal transmitted from the respiration sensor 9 is used to determine the awake state of the seated person, and when it is determined that the seat is not in the awake state, a signal for driving the vibration device 35 is transmitted from the CPU. Yes. In addition, the said structure should just use a well-known structure, and you may make it use a heart rate sensor instead of the respiration sensor 9. FIG.

  The ECU 7 constituting the awakening device U is attached to the lower surface side of the cushion pan F21 by a holding cover 71 as shown in FIG. 3, and the vibration device 35 is a seated person of the back pan F22 as shown in FIG. It is attached near the center of the side facing side.

The battery 8 has a function of supplying electric power to the ECU 7 and the vibration device 35, and is formed in a plate shape in the present embodiment. The battery 8 is attached to be overlapped below a control device U1 described later, and a power supply terminal 80a is formed on the front surface. The battery 8 is charged from a household power source by connecting a charging cord (not shown) from the power supply terminal 80a. And the battery 8 can divert the battery used for charge, such as a smart phone.
The battery 8 is not limited to a power supply type, and may be a detachable type.

<ECU and battery installation>
Next, the attachment of the ECU 7 and the battery 8 will be described with reference to FIGS. 4 to 6 in addition to FIGS.
4 is an exploded perspective view of the control device U1, the battery 8, and the holding cover 71 attached to the chair S with legs, and FIG. 5 shows the holding cover 71 in a state where the control device U1 and the battery 8 are held. FIG. 6 is a schematic front view showing a state in which a holding cover 71 that holds the control device U1 and the battery 8 is attached to the lower surface of the cushion pan F21.

  In the present embodiment, the ECU 7 is covered and supported by the base member 72 and the cover member 73, and is further held together with the battery 8 by the holding cover 71 and attached to the upper frame portion F21c. Note that a unit in which the ECU 7, the base member 72, and the cover member 73 are combined is also referred to as a control device U1.

  The holding cover 71 corresponds to the case according to the present invention. As shown in FIG. 4, the holding groove 71 a having an open top and a substantially U-shaped vertical cross section is formed from both ends of the upper portion. A pan mounting portion 71b extending in a flange shape outwardly upward is formed, and is formed of a resin material.

The pan mounting portion 71b corresponds to a fastened portion according to the present invention, and a pan mounting hole 71c through which the tapping screw N1 is passed is formed in the pan mounting portion 71b.
The front end of the pan attachment portion 71 b is not formed until reaching the front end of the holding cover 71, in other words, is located behind the front end of the holding cover 71.
By being formed in this way, the upper frame part F21c fastened by the tapping screw N1 together with the pan attaching part 71b can be arranged behind the front end of the holding cover 71.
For this reason, it is possible to suppress the forward extension amount of the upper frame part F21c for attaching the pan attaching part 71b, and to prevent the seated person's hand from touching the upper frame part F21c and feeling uncomfortable. it can.

In addition, a plurality of L-shaped ribs 71d having lower portions formed long in the width direction of the chair are formed side by side in the front-rear direction of the chair on the inner walls of the holding cover 71 on both sides in the width direction of the chair. A base member 72 described later is placed on the rib 71d. The lower portions of the pair of ribs 71d facing the width direction of the chair are formed at intervals longer than the length of the battery 8 so that the battery 8 can be sandwiched in the width direction of the chair. Is also formed at a high height.
Furthermore, the rib 71e which is the foremost in the front-rear direction of the chair of the holding cover 71 is formed such that the upper portion projects from the other rib 71d in the width direction of the chair. More specifically, the length between the pair of ribs 71e on both sides in the width direction of the chair is set to be shorter than the length in the width direction of the chair in the cover member 73 described later.
For this reason, the cover member 73 that covers the ECU 7 and is held by the holding cover 71 is restricted from moving forward by the rib 71e.

Between the ribs 71d adjacent to each other in the front-rear direction, a rectangular slit 71h extending in the vertical direction is formed.
Thus, by forming the slit 71h, air can flow between the inside and the outside of the holding cover 71, and the heat dissipation of the ECU 7 and the battery 8 held by the holding cover 71 can be improved.

On the front side of the bottom wall of the holding cover 71, a cantilever section 71f is formed by cutting away both sides in the width direction of the chair from the front end to the rear.
At the front end of the cantilever section 71f, a mountain-shaped locking projection 71g that protrudes upward and continues in the width direction of the chair is formed.
The cantilever piece 71f is for detachably supporting a later-described battery 8 from the holding cover 71.
Specifically, the cantilever piece 71f is held by the locking projection 71g being locked to the battery 8 in a normal state where no external force is applied.
On the other hand, when the battery 8 attached in the holding cover 71 is pulled forward, the battery 8 can be removed by abutting and bending against the locking protrusion 71g.

The base member 72 and the cover member 73 are frames having a substantially U-shaped vertical cross section.
Specifically, the base member 72 has a substantially U-shaped cross section, and extends in the front-rear direction longer than the width direction length. A plurality of punch holes 72a are formed on the side surface of the base member 72, and the heat dissipation of the ECU 7 supported therein is enhanced by allowing air to flow.
On the other hand, the cover member 73 has a substantially U-shaped cross section and extends in the width direction longer than the length in the front-rear direction.
In particular, a rectangular notch is formed on the front surface of the cover member 73 in order to expose the connector 70 of the ECU 7 and connect the ECU 7 to the respiration sensor 9 or the vibration device 35 by the connector 70.
These are stacked one above the other to form a storage space for the ECU 7.
The base member 72 and the cover member 73 are fastened by the fixing screw N2 in a state where the ECU 7 is stored, stacked on the battery 8, and held in the housing concave groove 71a.

The base member 72 is placed on the ribs 71d that are arranged at intervals in the front-rear direction, so that the heated air generated from the ECU 7 passes between the ribs 71d via the punch holes 72a of the base member 72. Will pass. For this reason, the heat dissipation of ECU7 can be made favorable.
Furthermore, since the lower part of the rib 71d is formed with a height higher than the thickness of the battery 8 in the vertical direction, the holding cover 71 and the battery 8 arranged on the rib 71d can be separated from each other.
As described above, the holding cover 71 and the battery 8 are arranged apart from each other, so that the heat between the two can be prevented from being directly transmitted and the temperature rise between the two can be suppressed.

  The battery 8 is provided below the control device U1 and away from the cushion pan F21. By arranging the battery 8 in this way, the seated person can easily reach to the battery 8 while sitting on the cushion pan F21. That is, the seated person can easily attach / detach or charge the battery 8 while sitting on the cushion pan F21, and the workability is improved.

And the dead space of the chair S with a leg can be used effectively by arrange | positioning the control apparatus U1 which is not frequently touched except for maintenance above the battery 8. FIG.
Further, in the present embodiment, the control device U1 is larger than the battery 8 in the width direction and depth direction of the chair. For this reason, it is preferable that the control device U <b> 1 is provided above the battery 8.
In this way, the larger one in the width direction or the depth direction of the chair is arranged upward, for example, by fitting the holding cover 71 to the size of the relatively small battery 8. The space below the holding cover 71 can be widened.

The battery 8 is preferably stacked below the control device U1, but is not limited to such a configuration. For example, the battery 8 may be stacked above the control device U1.
In this way, the control device U1 and the battery 8 are arranged so as to overlap each other, thereby preventing the control device U1 or the battery 8 from projecting in the width direction of the chair S with a leg, and seating. Interfering with a person's leg etc. can be suppressed.

In addition, if one of the ECU 7 and the battery 8 that has a larger amount of heat generation is disposed on the upper side in the vertical direction, heat is generated between the ECU 7 and the battery 8 below the upper frame portion F21c.
For this reason, it is preferable to arrange the ECU 7 and the battery 8 having the larger heat generation amount on the lower side in the vertical direction because the heat dissipation is good.

The control device U <b> 1 is stored in the groove of the holding cover 71 together with the battery 8. In this state, the holding cover 71 is fastened to the cushion pan F21 by the tapping screws N1 from the pan mounting holes 71c (four in this example) formed in the pan mounting portion 71b (two in the present example). Attached.
Specifically, the tapping screw N1 is tapped to the resin plate F21d through the pan attachment hole 71c and the through hole F21h of the upper frame portion F21c.

  Further, the tapping screw N1 is tapped with the lower surface of the screw head in contact with the resin pan mounting portion 71b. For this reason, the fastening strength by the tapping screw N1 is higher than that in the case of contacting the metal surface.

As shown in FIG. 6, in a state where the holding cover 71 is attached to the upper frame portion F <b> 21 c, the pan attachment portion 71 b that contacts the upper frame portion F <b> 21 c protrudes above the cover member 73. For this reason, a space SP corresponding to the gap according to the present invention is formed between the cover member 73 and the upper frame portion F21c.
Heat generated from the ECU 7 and the battery 8 can be radiated by the space SP thus formed.
Furthermore, as shown in FIG. 3, it is also possible to arrange a harness 11 connected to, for example, the respiration sensor 9 and the ECU 7 by using a part of the space SP.
In addition, a harness or a cable (not shown) that connects the vibration device 35 or the battery 8 and the ECU 7 may be passed through a part of the space SP.

  The holding cover 71 for storing the control device U1 and the battery 8 is provided at a position that avoids the movable range of the operation lever 10. For this reason, it can avoid interfering with the operation of the operation lever 10.

Similarly, the connector 70 is provided at a position that avoids the movable range of the operation lever 10, and more specifically, as shown in FIG. 6, the connector 70 is provided on the operation lever 10 provided on one side in the width direction of the chair. It is provided on the other side which is the opposite side.
Since the connector 70 is arranged in this way, when the hand is extended from one side in the width direction of the legged chair S in order for the seated person to operate the operation lever 10, the connector 70 and the connector 70 are connected. It can be avoided that the connected harness 11 is in the way.

The holding cover 71 is attached to the cushion pan F21 so that the connection port 70a of the connector 70 faces forward.
For this reason, the seated person can insert and remove the harness 11 while sitting on the legged chair S without the support cylinder F30 behind the holding cover 71 getting in the way.

Note that an extension cable (not shown) having male-female terminals, for example, is connected to the charging terminal of the battery 8 held by the holding cover 71, and a charging port is provided at the tip of the foot F31 above the caster F31a. You may make it do.
In this way, the seated person can more easily see the tip of the foot portion F31 than the vicinity of the lower surface of the cushion pan F21, so that the charging cord of the battery 8 can be connected more easily.
In this case, it is particularly preferable that an extension cable (not shown) is provided inside the column cylinder F30 and the foot part F31.
In addition, although illustration is abbreviate | omitted, LED for electricity display etc. may be mounted.

<Retention cover size and mounting position>
Next, the size and mounting position of the holding cover 71 will be described with reference to FIGS.
Here, FIG. 7 is a schematic cross-sectional view showing a VII-VII cross section of FIG. 1, and FIG. 8 is a schematic side view showing a state where the legged chair S is tilted sideways.

As shown in FIG. 7, the holding cover 71 is formed in a size that fits between the adjacent foot portions F31 in the horizontal plane.
Since the holding cover 71 is formed in this way, the seated person can place the legs of the seated person in a state where the two adjacent foot parts F31 are arranged on the front side and the legs are placed on the two foot parts F31. Can be prevented from coming into contact with the holding cover 71.
For this reason, when a seated person's leg contact | abuts to the holding | maintenance cover 71, it can avoid a seated person feeling uncomfortable.

Furthermore, as shown in FIG. 8, the holding cover 71 is in contact with the floor FL of the cushion pan F21 and the floor of the foot F31 in any state where the legged chair S is tilted to the floor FL in any direction. It is preferable that it is disposed at least above a straight line connecting the contact portion with the FL.
Since the holding cover 71 is attached to the cushion pan F21 in such an arrangement, even when the legged chair S falls down unexpectedly, the holding cover 71 comes into contact with the floor FL, and the holding cover 71 and the holding cover 71 are held. It is possible to prevent the ECU 7 and the battery 8 in the cover 71 from being damaged.

(First modification)
Next, a holding cover 75 that holds the control device U1 according to the first modification of the present embodiment will be described with reference to FIG. Here, FIG. 9 is a schematic cross-sectional view showing an IX-IX cross section of FIG. 1 and showing an example in which the harness 11 is connected to the rear of the control device U1.
In the following examples, the same components as those in the above embodiment are denoted by the same reference numerals, description thereof is omitted, and differences are clarified.

This modification is characterized in that the respiration sensor 9 and the connector 70 can be connected with a short harness 11.
Specifically, the holding cover 75 according to the present modification corresponds to the case according to the present invention, and the control device U1 so that the connector 70 of the ECU 7 constituting the control device U1 is disposed on the support column F21a side. It is characterized by holding.
Unlike the holding cover 71, an opening 75 a that exposes the connector 70 rearward is formed on the rear side surface of the holding cover 75.

In addition, a through hole F21n that communicates with the hollow portion from the outside is formed in a portion of the column F21a exposed from between the lower frame portion F21b and the upper frame portion F21c and facing the holding cover 75. ing.
Further, some of the plurality of holes F21j formed in the resin plate F21d are located above the hollow portion of the support column F21a and communicate with the hollow portion.
In the pad portion F21o, a guide hole F21m is formed so as to be continuous with the punch hole F21j.
The harness 11 connected to the connector 70 is connected to the respiration sensor 9 through the opening 75a of the holding cover 75, the through hole F21n of the support column F21a, the punching hole F21j of the resin plate F21d, and the guide hole F21m of the pad portion F21o. ing.

Thus, the connector 70 is arranged on the rear side of the holding cover 75, in other words, on the side facing the support column F21a and the support column F30, so that the connection port 70a of the connector 70 is connected to the support column F21a and the support column F30. Therefore, foreign matter can be prevented from entering.
Further, according to such a configuration, the distance between the breathing sensor 9 and the connector 70 located behind the holding cover 75 is shorter than when the connector 70 is disposed on the front side of the holding cover 75.
For this reason, the harness 11 can be shortened, the attachment of the harness 11 becomes easy, and the material cost can be reduced.
Furthermore, the seated person accidentally removes the harness 11 from the connector 70 by directing the connector 70 connected to the harness 11 of the respiration sensor 9 that the seated person does not need to touch to the side of the support column F21a (support column F30). It is possible to avoid human errors such as

  In addition, although the harness 11 which connects ECU7 and the respiration sensor 9 was demonstrated, the positional relationship also exists about the harness which is not shown which connects ECU7 and the vibration apparatus 35, and the cable which is not shown which connects ECU7 and the battery 8, respectively. Needless to say, it can be shortened by arranging the connector 70 according to the above.

(Second modification)
Finally, a legged chair S including a wireless power feeding device 16 according to a second modification of the present embodiment will be described with reference to FIG.
Here, FIG. 10 is a schematic diagram showing a legged chair S including the wireless power feeding device 16.

The wireless power feeding device 16 according to this example includes a power transmission unit 12 embedded in the floor FL, a power reception unit 13 that transmits power from the power transmission unit 12, and a cable 15 that is connected to the power reception unit 13 and the battery 8. Yes.
The power transmission unit 12 and the power reception unit 13 are provided with a coil therein, and generate an electromotive force in the power reception unit 13 through a magnetic flux generated by flowing a current from a household power source (not shown) to the power transmission unit 12. .
The power receiving unit 13 is attached to the lower side of the foot F31 so as to be close to the power transmitting unit 12 in order to increase the power receiving efficiency from the power transmitting unit 12.
And the cable 15 extended from the power receiving unit 13 passes through the hollow inside of the support | pillar F21a, and is connected to the battery 8 attached to the cushion pan F21.

In this example, when the battery 8 runs out of power, it is not necessary to replace it with a new battery 8 and it is not necessary to insert a charging cable into the battery 8.
For this reason, since the power supply of the awakening apparatus U does not take time, and since the charging cable does not get entangled with the leg member F3 when the legged chair S is moved, the legged chair S can be used comfortably. It becomes possible.
The wireless power feeder 16 may employ an electric field coupling method or a resonance coupling method in addition to the electromagnetic induction method.

  In the said embodiment, although the vibration apparatus was demonstrated to the example as what is corresponded to the stimulating device which comprises an awakening apparatus, this invention is not limited to such a structure. For example, by using a display, light or buzzer provided in the car, it is possible to notify the occupant or passenger by video, light, sound, etc., and to maintain the awakening of the occupant directly or indirectly Also good.

F21 cushion pan (seat)
F21a support F21b lower frame part F21c upper frame part F21d resin plate F21e skinned pad part F21f through hole F21g recess F21h through hole F21j through hole F21k, F21m guide hole F21n through hole F21o pad part F22 back pan F3 leg member F31 Foot F31a Caster FL Floor N1 Tapping screw (fastener)
N2 fixing screw S Chair SP with space (gap)
U Awakening device U1 Control device 10 Operation lever (operation unit)
DESCRIPTION OF SYMBOLS 11 Harness 12 Power transmission unit 13 Power receiving unit 14 Conductor 15 Cable 16 Wireless power supply apparatus 35 Vibration apparatus (stimulation apparatus)
7 ECU
70 Connector 70a Connection port 71, 75 Holding cover (case)
71a Accommodating groove 71b Pan mounting part (fastened part)
71c Pan mounting hole 71d, 71e Rib 71f Cantilever 71g Locking projection 71h Slit 72 Base member 72a Punch hole 73 Cover member 74 Seat frame 75a Open hole 8 Battery 80a Feed terminal 9 Respiration sensor (sensor)

Claims (20)

A seat having a seat frame;
A column supporting the seat from below;
A leg member attached to the column;
A wake-up device having a stimulating device for stimulating the seated person and a control device for controlling the stimulating device,
A chair for supplying power to the awakening device,
The seat frame includes a lower frame portion, and an upper frame portion that is disposed so as to overlap the lower frame portion in the vertical direction and is provided so as not to overlap at least partly.
The chair is characterized in that the control device is disposed below the part of the upper frame portion.   The chair according to claim 1, wherein the battery is disposed so as to overlap the control device in a vertical direction. The chair according to claim 2 , wherein the battery is disposed below the control device. The chair according to claim 2 , wherein one of the control device and the battery having a larger width or depth is provided on the upper side. The chair according to claim 2 , wherein one of the control device and the battery that has a larger calorific value is provided on the lower side. It has a movable range, and includes an operation unit that can change the state of the chair,
The chair according to any one of claims 1 to 5, wherein the control device and the battery are provided at positions avoiding a movable range of the operation unit. The control device includes a connector for connecting to the battery ,
The chair according to claim 6, wherein the connector is provided at a position that avoids a movable range of the operation unit.   The chair according to claim 7, wherein the connector is disposed at a position that does not overlap the operation unit in a vertical direction.   The chair according to claim 7 or 8, wherein the connector is disposed on the opposite side in the width direction of the chair with respect to the side on which the operation unit is located. The control device is disposed in front of the support column,
The chair according to claim 7, wherein the connector is disposed on a front side of the control device.   11. The chair according to claim 7, wherein the connection port of the connector is provided at a position avoiding a position facing the support column.   11. The chair according to claim 7, wherein the connection port of the connector is disposed at a position facing the support column. The awakening device includes a sensor that detects the state of a seated person,
The control device is connected to the sensor via a harness connected to the connector,
The chair according to any one of claims 7 to 12, wherein the connector is provided with a connection port of the connector facing the sensor. A case that is attached to the front side of the back surface of the seat and holds the battery;
The chair according to any one of claims 1 to 13, wherein a front side of the case is opened with a size that allows the battery to be taken in and out.   The chair according to claim 14, wherein the case holds the battery and the control device.   The chair according to claim 14 or 15, wherein a slit is formed in the case.   The chair according to any one of claims 14 to 16, wherein the case is formed in a size that fits between adjacent feet of the plurality of feet constituting the leg member. . The case has a fastened part fastened to the upper frame part by a fastener,
The chair according to any one of claims 14 to 17, wherein the fastened portion is formed behind the front end of the case in the front-rear direction of the chair.   The chair according to claim 18, wherein a gap is formed between at least a part of the case other than the fastened portion and the upper frame portion.   The chair according to claim 1, wherein the battery is a wireless power supply battery.

Images