JP2021035600A - Chair - Google Patents

Abstract

To provide a chair that can reduce the size of a cover for protecting an electronic control part for controlling vibration equipment.SOLUTION: A chair includes a chair body with a seat part, and an awakening device for awakening a person sitting on the seat part. The awakening device includes a sensor for detecting a body signal of the sitting person, a vibration motor 13 for giving vibration stimulation to the sitting person, an ECU 12 for controlling the vibration motor 13 based on the body signal detected by the sensor, and a holding member 11 for holding the ECU 12. The holding member 11 includes a cover body 11A for covering the ECU 12, an ECU attaching part 11B formed integrated with the cover body 11A, to which the ECU 12 is attached, and a holding member attaching part 11C for attaching the holding member 11 to the chair body.SELECTED DRAWING: Figure 4

Description

The present invention relates to a chair equipped with an awakening device that gives a vibration stimulus to a seated person.

A chair having a function of giving a vibration stimulus to a seated person is known. For example, in the chair described in Patent Document 1, a vibration motor is embedded in a seat portion, and the vibration motor is operated when a drive signal is received by a receiving portion provided in the backrest portion.

If the vibration motor is embedded in the seat as described in Patent Document 1, the seating feeling may be impaired. Therefore, as described in Patent Document 2, a chair in which a vibration motor is attached to the back surface side of the seat portion has also been proposed.

Japanese Unexamined Patent Publication No. 7-322938 Japanese Unexamined Patent Publication No. 6-253953

By the way, in order to detect the physical condition of the seated person by a sensor and give a vibration stimulus to the seated person according to the state, an electronic control unit (ECU) that controls a vibration motor based on a signal detected by the sensor is used. Used. In order to reduce the weight of the chair, it is an issue to realize a cover that protects the electronic control unit from impact with a small number of parts.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a chair in which the number of component parts of a cover for protecting an electronic control unit that controls a vibrating device is reduced.

The above-mentioned task is a chair including a chair body having a seat portion and an awakening device for awakening a seated person seated in the seat portion, and the awakening device is a sensor for detecting a body signal of the seated person. A vibrating device that applies a vibrating stimulus to the seated person, an electronic control unit that controls the vibrating device based on a body signal detected by the sensor, and a holding member that holds the electronic control unit. The holding member includes a cover main body that covers the electronic control unit, an electronic control unit mounting portion that is integrally formed with the cover main body and to which the electronic control unit is attached, and a holding for attaching the holding member to the chair body. It is solved by a chair characterized by having a member mounting portion.

According to the above chair, the electronic control unit that controls the vibrating device can be protected. In addition, the number of component parts of the holding member for attaching the electronic control unit to the chair body can be reduced. As a result, the holding member can be miniaturized.

In the chair, the cover body may have a recessed recess on the chair body side, and the electronic control unit mounting portion may be provided on the side of the recess facing the chair body.
By doing so, the electronic control unit can be held between the chair body and the recess, and the electronic control unit can be protected from an external impact.

The chair may have a power supply unit that supplies electric power to the awakening device, and the power supply unit may be arranged on the back surface side of the recess that faces the chair body.
By doing so, the awakening device can be operated by the internal power supply. As a result, the degree of freedom in installing the chair can be improved.

In the chair, the electronic control unit mounting portion has a first protruding portion and a second protruding portion protruding toward the chair body from the surface of the recess facing the chair body, and the first The protrusion of 1 and the electronic control unit attached to the second protrusion may be separated from the surface of the recess facing the chair body.
By doing so, the heat dissipation of the electronic control unit can be improved.

In the chair, the first protrusion and the second protrusion may be arranged diagonally to the electronic control unit.
By doing so, the attachment of the electronic control unit can be stabilized.

In the above chair, a through hole may be formed in the surface of the recess facing the chair body.
By doing so, the heat dissipation of the electronic control unit can be improved. In addition, the inside of the awakening device can be confirmed from the through hole.

In the above chair, the holding member includes a vibrating device mounting portion to which the vibrating device is attached, and a vibrating device cover member that covers an exposed portion of the vibrating device attached to the vibrating device mounting portion. The end portion of the vibrating device cover member on the chair body side may be closer to the chair body side than the electronic control unit.
By doing so, the vibration device cover member receives the impact from the chair body side, and the electronic control unit can be protected.

In the chair, the holding member mounting portion may be configured as a flange extending from the cover body and may have at least one rib connecting the holding member mounting portion and the cover body.
By doing so, the strength of the holding member can be improved.

In the chair, at least a part of the vibrating device may overlap with the flat surface on which the surface of the rib is extended.
By doing so, the vibration from the vibrating device can be efficiently transmitted to the chair body via the ribs.

In the chair, the electronic control unit may have a wireless communication unit that performs wireless communication with a wireless communication terminal.
By doing so, it is possible to reduce the number of component parts of the holding member for attaching the electronic control unit having the wireless communication function to the chair body.

According to the present invention, the number of component parts of the cover that protects the electronic control unit that controls the vibrating device can be reduced.

According to one aspect of the present invention, the electronic control unit can be held between the chair body and the recess, and the electronic control unit can be protected from an external impact.

According to one aspect of the present invention, the degree of freedom in installing the chair can be improved.

According to one aspect of the present invention, the heat dissipation of the electronic control unit can be improved.

According to one aspect of the present invention, the attachment of the electronic control unit can be stabilized.

According to one aspect of the present invention, the inside of the awakening device can be confirmed from the through hole.

According to one aspect of the present invention, the vibration device cover member receives an impact from the chair body side and can protect the electronic control unit.

According to one aspect of the present invention, the strength of the holding member can be improved.

According to one aspect of the present invention, the vibration from the vibrating device can be efficiently transmitted to the chair body via the ribs.

According to one aspect of the present invention, the number of component parts of the holding member for attaching the electronic control unit having the wireless communication function to the chair body can be reduced.

It is a perspective view which shows the appearance of the chair which concerns on this embodiment. It is a lower perspective view which shows the lower surface of the seat part. FIG. 3 is a sectional view taken along line III-III in FIG. It is a perspective view of the main unit which constitutes an awakening apparatus. It is an exploded perspective view of the main unit. It is a top view of the main unit. It is a top view of the main unit with the ECU removed. FIG. 6 is a sectional view taken along line VIII-VIII of FIG. It is a side view of the main unit. It is a top view which concerns on the chair body part of the chair which concerns on 1st modification. It is a rear view of the backrest part of the chair which concerns on the 2nd modification. It is a front view of the chair which concerns on the 3rd modification. It is a bottom view of the chair which concerns on the 3rd modification. It is a bottom view of the chair which concerns on the 4th modification. It is an exploded perspective view of the seat part of the chair which concerns on 5th modification. It is a top view of the pad material of the chair which concerns on 5th modification. FIG. 15 is a cross-sectional view taken along the line XVI-XVI of FIG. It is a partially enlarged view of a biosensor and a transmission line. It is an upper perspective view of the main unit which concerns on a modification. It is a lower perspective view of the main unit which concerns on a modification. It is an exploded perspective view of the main unit which concerns on a modification.

Hereinafter, the chair S having a vibration function according to the embodiment of the present invention (hereinafter, the present embodiment) will be described with reference to FIGS. 1 to 21. It should be noted that the embodiments described below are merely examples for facilitating the understanding of the present invention, and do not limit the present invention. That is, the shapes, dimensions, arrangements, and the like of the members described below can be changed and improved without departing from the gist of the present invention, and it goes without saying that the present invention includes equivalents thereof.

Hereinafter, the chair S according to the present embodiment will be described with reference to FIGS. 1 to 9. In the following, each direction of front-back, left-right, and up-down will be the same as each direction seen from the seated person of the chair S.

[Overall configuration of chair S]
First, the main configuration of the chair S will be described with reference to FIGS. 1 and 2. Here, FIG. 1 is an external view of the chair S according to the present embodiment, and FIG. 2 is a lower perspective view showing the lower surface of the seat portion S1 constituting the chair S.

As shown in FIG. 1, the chair S mainly includes a seat portion S1, a backrest portion S2, a support column S3, a leg portion S4, a caster S5, and an awakening device D.

The seat portion S1 is a member that constitutes a seat surface that supports the buttocks of the seated person. The backrest portion S2 is a member that is connected to the seat portion S1 and constitutes a backrest surface that supports the lumbar region and the back portion of the seated person. In the present embodiment, the portion including the seat portion S1 and the backrest portion S2 is referred to as the chair body B.

The support column S3 is attached to the lower surface of the seat portion S1 and is a member that supports the seat portion S1. The leg portion S4 is a member attached to the lower part of the support column S3 and supporting the support column S3. Further, casters S5 are attached to the tips of the legs of the legs S4 in order to facilitate the movement of the chair S.

The awakening device D includes a main unit 10, a biosensor 30 that detects a body signal of a seated person, and a harness 31 for transmitting a detection signal of the biosensor 30 to the main unit 10. The main unit 10 has a main function of giving a vibration stimulus to the seated person based on a detection signal by the biological sensor 30, and also has a function of wirelessly communicating with the wireless communication terminal 2. In the present embodiment, the biological sensor 30 shows an example of using a respiration sensor that detects information on the respiration of the seated person by a change in pressure supporting the seated person, but in addition to this, a heart rate sensor and a body temperature sensor are used. Etc. may be used.

The wireless communication terminal 2 is a computer such as a tablet terminal, a mobile terminal (including a smartphone), a personal computer, etc., and can acquire information from the main unit 10 or obtain information from the main unit 10 by performing two-way wireless communication with the main unit 10. It is possible to control the unit 10.

Here, as shown in FIGS. 2 and 3, the main unit 10 is attached to the lower surface of the seat portion S1. As shown in FIG. 2, of the resin plate 40 constituting the lower surface of the seat portion S1, a holding member 11 serving as a cover member of the main unit 10 is attached in front of the connecting portion of the support column S3. Here, a battery cover 21 provided detachably for attaching a dry battery serving as a power source for the main unit 10 is provided at the center of the lower surface of the holding member 11, and is provided at four corners of the lower surface of the holding member 11. The main unit 10 is attached to the lower surface of the seat portion S1 by inserting and fastening the tapping screw (fastening member) through the through hole 15.

Further, as shown in FIG. 3, the biosensor 30 is arranged on the upper surface of the pad portion 41 constituting the seat portion S1. The harness 31 connected to the biosensor 30 is connected to the main unit 10 through a guide hole 42 formed in the pad portion 41 made of a cushion material such as urethane and a punch hole 43 formed in the resin plate 40.

[About main unit 10]
Next, the details of the main unit 10 constituting the awakening device D will be described with reference to FIGS. 4 to 9. FIG. 4 is a perspective view of the main unit 10 in a state where the main unit 10 is removed from the chair S, and FIG. 5 is an exploded perspective view of the main unit 10. FIG. 6 is a top view of the main unit 10, and FIG. 7 is a top view of the main unit 10 in a state where the ECU 12 is removed from the main unit 10. 8 is a sectional view taken along line VIII-VIII of FIG. 6, and FIG. 9 is a side view of the main unit 10.

As shown in FIGS. 4 and 5, the main unit 10 mainly includes an ECU 12 (electronic control unit), a vibration motor 13, and a holding member 11 that holds the ECU 12 and the vibration motor 13 in a state of being housed therein.

The holding member 11 includes a cover main body 11A, an ECU mounting portion 11B, a holding member mounting portion 11C, and a vibration motor mounting portion 11D. The holding member 11 is made of, for example, a resin material.

The cover body 11A has a substantially U-shaped vertical cross section with an open upper part, and functions as a housing of the awakening device D. Further, on the lower surface portion of the cover main body 11A, a recess 17 recessed inward is provided. A battery end plate 20 is attached to the side wall of the recess 17, and the dry battery 23 is housed in the recess 17 with electrodes arranged in a direction facing the battery end plate 20. The dry battery 23 functions as a power source for the ECU 12 and the vibration motor 13. Further, the battery cover 21 is a member that engages with the opening on the lower side of the recess 17 and covers the dry battery 23 housed in the recess 17. Since the dry battery 23 can be exposed by removing the battery cover 21, the dry battery 23 can be easily replaced.

The ECU mounting portion 11B (first mounting portion 11Ba and second mounting portion 11Bb) and the ECU support portion 19 are formed on the surface of the recess 17 on the seat portion S1 side so as to project toward the seat portion S1. .. The ECU mounting portion 11B and the ECU support portion 19 are each formed integrally with the cover main body 11A and are members that support the ECU 12. Further, a screw hole for screwing with the fixing screw 18 is formed in the central portion of the ECU mounting portion 11B. Ribs are formed around the ECU mounting portion 11B and the ECU support portion 19, respectively, thereby increasing the strength of the ECU mounting portion 11B and the ECU support portion 19.

Further, as shown in FIG. 5, a screw insertion hole 12B is formed on one diagonal of the four corners of the substrate of the ECU 12, and a support insertion hole 12C is formed on the other diagonal. Then, the screw insertion hole 12B of the ECU 12 and the ECU mounting portion 11B are opposed to each other, and the support portion insertion hole 12C and the ECU support portion 19 are arranged so as to face each other, and are formed on the upper part of the ECU mounting portion 11B. By screwing the fixing screw 18 into the screw hole, the ECU 12 can be attached to the holding member 11.

Here, the ECU 12 and the recess 17 are separated from each other, and by providing a space between the ECU 12 and the recess 17 in this way, the heat dissipation of the ECU 12 can be improved.

Further, as shown in FIG. 7, a through hole 17A is formed in the central portion of the upper surface of the recess 17, which allows the exhaust heat from the ECU 12 to escape, so that the heat dissipation can be further improved. it can. In addition, the inside of the main unit 10 or the mounting state of the dry battery 23 can be confirmed through the through hole 17A.

Further, the cover main body 11A is formed with a plurality of ribs 22 for connecting the inner surface of the cover main body 11A and the recess 17, and these ribs 22 can improve the rigidity of the cover main body 11A.

The holding member mounting portion 11C is a portion for mounting the main unit 10 to the seat portion S1, and is formed as flanges extending to both sides of the cover main body 11A. A plurality of through holes 15 are formed in the holding member mounting portion 11C, and tapping screws are passed through the through holes 15 to fix the holding member mounting portion 11C to the lower surface of the seat portion S1. As a result, the main unit 10 is attached to the lower side of the seat portion S1.

The vibration motor mounting portion 11D has a housing groove in which the vibration motor 13 is mounted and the vibration motor 13 is housed. The vibration motor 13 corresponds to the vibration device according to the present invention, and can be switched between driving and stopping based on a control signal received from the ECU 12. For example, an unbalanced mass type motor may be used as the vibration motor 13.

As shown in FIG. 8, in a state where the vibration motor 13 is housed in the housing groove, the vibration motor cover member 14 is arranged on the upper portion, and the upper surface of the vibration motor 13 is covered by the vibration motor cover member 14. Further, by sandwiching the upper and lower parts of the vibration motor 13 between the vibration motor mounting portion 11D and the vibration motor cover member 14, it is possible to suppress the misalignment of the vibration motor 13 even in the driving state.

Further, as shown in FIG. 8, the upper end portion of the vibration motor cover member 14, that is, the end portion on the seat portion S1 side is located closer to the seat portion S1 than the ECU 12. As a result, even when an impact is received from the seat portion S1 side or the lower surface side of the holding member 11, the vibration motor cover member 14 hits the resin plate 40 constituting the lower surface of the seat portion S1 before the ECU 12. Since it becomes easy to come into contact with the ECU 12, the ECU 12 can be suitably protected without providing a protective member on the upper portion of the ECU 12. As described above, the number of component parts of the main unit 10 can be reduced by not requiring the protective member to be provided on the upper part of the ECU 12.

The ECU 12 is a control device that controls the awakening device D. In the present embodiment, the vibration motor 13 is generated based on the potential difference signal converted into a digital signal indicating the breathing interval detected by the biological sensor 30. It has a drive control function. Further, the ECU 12 has a wireless communication unit 12A that performs wireless communication together with a CPU, ROM, and RAM for arithmetic control, and the wireless communication unit 12A enables bidirectional communication with the wireless communication terminal 2. Then, the ECU 12 may control the operation of the vibration motor 13 based on the control signals (drive signal, stop signal, etc.) received from the wireless communication terminal 2.

Specifically, the signal input to the ECU 12 is a potential difference signal converted into a digital signal by the signal processing circuit, and what is output is the electric power for driving the vibration motor 13. The RAM temporarily stores parameters including signals under arithmetic control and input / output signals, and functions as a storage unit for storing potential difference signals and other signals converted into digital signals.

The ROM stores a program executed by the CPU and a predetermined parameter, and the program includes, for example, a setting program for setting a predetermined reference value and a determination for determining an awakening state based on the reference value. A program, a drive program for driving the vibration motor 13, and the like are included.

Here, the ECU 12 has a function of driving the vibration motor 13 by supplying electric power in response to an instruction from the CPU. The instruction signal of the CPU is generated by calculating a signal from the biological sensor 30 (respiratory sensor). That is, the CPU determines the awake state of the seated person based on the signal transmitted from the biological sensor 30, and when it is determined that the seated person is in a low awake state (that is, not in the awake state), the CPU drives the vibration motor 13. The signal is output to the vibration motor 13. As a result, when the seated person is in a low arousal state, it becomes easy to recover to the awake state or maintain the awake state by giving a vibration stimulus.

Further, as shown in FIG. 9, a plurality of ribs 16 connecting the cover main body 11A and the holding member mounting portion 11C are formed on the outer surface of the cover main body 11A. Thereby, the rigidity of the holding member 11 can be increased. Further, as shown in FIG. 9, a flat surface extending the surface of at least one rib 16 overlaps with the vibration motor 13. In other words, in the side view of the main unit 10, there is at least one rib 16 located at a position overlapping the vibration motor 13 in the front-rear direction, and by configuring in this way, the vibration from the vibration motor 13 can be attached to the holding member. It can be efficiently transmitted to the seat portion S1 via the portion 11C.

The present invention is not limited to the above embodiment, and various modifications are possible. Hereinafter, a modified example of the chair S according to the above embodiment will be described.

[First modification]
A first modification will be described with reference to FIG. FIG. 10 is a schematic top view of the seat portion S1 showing the arrangement of the biosensor 30. As shown in FIG. 10, the first modification is different from the above embodiment in that a plurality of biosensors 30 are provided on the seat portion S1 across the support columns S3.

Depending on the detection sensitivity and pressure resistance of the biosensor 30, the biosensor 30 should be placed in a place where the pressure applied from the seater fluctuates greatly when the seater breathes, avoiding the position where the load of the seater is most applied. May be able to suitably detect body signals. Assuming such a case, when the seated person is seated shallowly on the seat portion S1 (on the front side of the seat portion S1), that is, when the maximum load region is located on the front side of the support column S3, the biosensor When the 30 is arranged behind the center of the support column S3, the body signal can be suitably detected.

On the other hand, when the seated person is seated deeply in the seat portion S1 (behind the seat portion S1), that is, when the maximum load region is located behind the support column S3, the biosensor 30 is placed on the support column. When it is arranged in front of S3, the body signal can be suitably detected.

Then, when assuming a seated person who takes both postures, it is preferable to arrange a plurality of biosensors 30 on both the front side and the rear side with respect to the center of the support column S3.

[Second variant]
Next, a second modification will be described with reference to FIG. The second modification is different from the above embodiment in that the main unit 10 is attached to the rear surface of the backrest portion S2 instead of the seat portion S1.

FIG. 11 shows the rear surface of the backrest portion S2 to which the main unit 10 is attached. As shown in FIG. 11, in the main unit 10, the holding member mounting portion 11C is mounted on the rear surface portion of the backrest portion S2 by the fixing screw 50.

In this way, by attaching the main unit 10 including the vibration motor 13 to the rear surface of the backrest portion S2, the backrest portion S2 can be vibrated and the vibration can be transmitted to the upper body of the seated person. Can be enhanced.

Further, the lower portion of the backrest portion S2 often faces the lumbar portion of the seated person, and the lumbar portion of the seated person is less likely to separate depending on the posture. Therefore, by attaching the main unit 10 to the lower part of the backrest portion S2, it is possible to stably propagate the stimulus to the lumbar region of the seated person, and the awakening effect can be improved.

[Third variant]
Next, a third embodiment will be described with reference to FIGS. 12 and 13. The third embodiment differs from the above embodiment in that the main unit 10 is attached to the chair Sa with armrests provided with the armrest S6.

FIG. 12 is a schematic front view of the armrest-equipped chair Sa provided with the armrest S6, and FIG. 13 is a schematic bottom view of the armrest-equipped chair Sa. As shown in FIG. 12, the armrests S6 are attached to both sides of the seat portion S1. Further, as shown in FIG. 13, the armrest mounting portion 60 for mounting the armrest S6 on the lower surface portion of the seat portion S1 is located on the lower surface portion of the seat portion S1 so as to be positioned so as to overlap the main unit 10 in the front-rear direction. It may be attached.

[Fourth variant]
Next, a fourth embodiment will be described with reference to FIG. The fourth embodiment differs from the third embodiment in the mounting position of the armrest mounting portion 60 of the armrest S6. That is, as shown in FIG. 14, the armrest mounting portion 60 for mounting the armrest S6 on the lower surface portion of the seat portion S1 is located at a position that does not overlap with the main unit 10 in the front-rear direction. It may be attached to.

[Fifth variant]
Next, a fifth embodiment will be described with reference to FIGS. 15 to 21.

FIG. 15 is an explanatory view of the configuration of the seat portion S1 of the chair S according to the fifth embodiment, and is a view in which the seat portion S1 is disassembled into its constituent parts.
As shown in FIG. 15, the seat portion S1 is configured by placing the pad material 54 on the resin frame 59B and covering the pad material 54 with the skin material 59A. The resin frame 59B has a size sufficient to support the pad material 54 from below.

The main parts of the biosensor 30A are arranged between the pad material 54 and the skin material 59A, and the wiring extending below the biosensor 30A passes through the through slit 56 formed in the pad material 54 and the through hole of the resin frame 59B. , It is connected to the main unit 61 attached to the lower side of the seat portion S1.

Hereinafter, the mounting structure of the biosensor 30A and the biosensor 30 will be described with reference to FIGS. 16 to 18.

FIG. 16 shows a top view of the seat portion S1 in a state where the skin material 59A is removed.
As shown in FIG. 16, a biosensor 30A is provided on the pad material 54. The biosensor 30A is a device that detects a body signal of a seated person, and includes a detection unit 55, a first transmission line 51, a second transmission line 52, and a connection unit 53.

The detection unit 55 is a pressure sensor provided at four locations in the central portion of the pad material 54.
The first transmission line 51 is a wiring that is connected to each of the four detection units 55 and transmits a signal detected by the detection unit 55.
The second transmission line 52 is a wiring that connects to the ECU 12 of the main unit 10 and inputs the signal detected by the detection unit 55 to the ECU 12.
The connection unit 53 is a transmission line that connects the first transmission line 51 and the second transmission line 52, and is a flat plate-shaped transmission line that is wider than the first transmission line 51 and the second transmission line 52. .. In the example shown in FIG. 16, the width of the connecting portion 53 with the second transmission line 52 is narrower than that of the connecting portion with the first transmission line 51. Specifically, the connecting portion of the connecting portion 53 with the second transmission line 52 has a tapered shape in which the second transmission line 52 side becomes thinner.

As shown in FIGS. 16 and 17, a through slit 56 that penetrates the through slit 56 in the thickness direction is formed in front of the central portion 57 in the front-rear direction of the pad material 54.
Here, the central portion 57 in the front-rear direction is located at a position where it overlaps with the frame members 58 provided on both sides of the seat portion S1 in the front-rear direction. That is, the detection unit 55 and the first transmission line 51 are positioned so as to overlap the frame members 58 provided on both sides of the seat portion S1 in the front-rear direction.
Further, the through slit 56 is inclined from the upper rear portion to the lower front portion. That is, the upper end portion 56A of the through slit 56 is located behind the lower end portion 56B of the through slit 56.

A flat plate-shaped connecting portion 53 is arranged in the through slit 56, and the upper surface and the lower surface of the connecting portion 53 are arranged in a state of being in contact with the pad material 54.
By arranging the connecting portion 53 in contact with the pad material 54 in this way, it is possible to prevent the seat portion S1 from impairing the cushioning property.
Further, the space for arranging the connecting portion 53 in the pad material 54 can be made compact.
Further, since the through slit 56 is provided in front of the central portion 57 in the front-rear direction, that is, the portion supporting the buttocks of the occupant, it is possible to suppress the impaired seating feeling even when the through slit 56 is provided.

A second transmission line 52 is connected to the lower end of the through slit 56, and the second transmission line 52 is connected to the main unit 10 through a hole in the frame of the seat portion S1.

FIG. 18 shows the configuration of the biosensor 30A. As shown in FIG. 18, the corresponding first transmission lines 51 are connected to each of the four detection units 55. Further, the corresponding transmission line 53A of the connection unit 53 is connected to each first transmission line 51.
Here, the respective transmission lines 53A of the connecting portion 53 are arranged apart from each other on a plane along the connecting portion 53. With this configuration, the thickness of the connecting portion 53 can be reduced, and the connecting portion 53 can be arranged in contact with the upper and lower pad materials 54 in the through slit 56.
Then, each transmission line 53A is bundled by the second transmission line 52 and connected to the ECU 12 of the main unit 10.

Next, the configuration of the main unit 61 according to the modified example will be described with reference to FIGS. 19 to 21.
FIG. 19 is a view of the main unit 61 as viewed from above. FIG. 20 is a view of the main unit 61 as viewed from below. FIG. 21 is an assembly view of the main unit 61.

The main unit 61 has the appearance shown in FIG. 19 and is attached to the lower part of the seat portion S1. The main unit 61 is a mechanism for increasing the degree of arousal of the seated person by applying vibration as a physical stimulus to the seated person. Explaining the specific configuration of the main unit 61, as shown in FIGS. 19, 20, and 21, the main unit 61 includes a vibration applying device 62, an ECU 70, a battery 72, and a cage 80. ..

The vibration applying device 62 performs a vibration applying operation (corresponding to a predetermined operation) in order to increase the degree of arousal of the seated person. The vibration applying device 62 includes an unbalanced mass type motor, and as shown in FIG. 21, includes a motor 63 and a semi-cylindrical rotor 64 attached to a rotating shaft of the motor 63. Then, when the motor 63 is activated and the rotor 64 is rotated, periodic vibration of the seat portion S1 is generated. This vibration is transmitted to the seat portion S1 via the cage 80 and the mounting bracket, and finally reaches the seated person seated in the seat portion S1.

The ECU 70 corresponds to a control mechanism and controls the vibration applying device 62. More specifically, the ECU 70 is composed of a control board and is connected to the end of a lead wire extending from the detection unit 55 via a terminal terminal 71. The ECU 70 receives a signal output from the detection unit 55 (that is, a measurement result of the seating pressure), and executes a process of calculating the current arousal degree of the seated person based on the signal. Then, the ECU 70 controls the vibration applying device 62 so that the vibration is generated at the intensity and frequency according to the calculated degree of arousal. That is, the ECU 70 controls the vibration applying device 62 according to the measurement result of the detection unit 55.

Incidentally, as a method for determining the degree of arousal of the seated person based on the measurement result of the seating pressure, a known determination method can be used. For example, a waveform indicating a periodic change in the seating pressure is specified from the measurement result of the detection unit 55, and the degree of arousal of the seated person is determined from the length of the period of the waveform (for easy understanding, the interval at which peaks appear in the above waveform). It can be determined.

As shown in FIG. 19, the terminal terminal 71 is provided at the front end portion of the ECU 70. That is, the end portion of the lead wire extending from the detection unit 55 is drawn toward the ECU 70 from the front side of the ECU 70 and is connected to the terminal terminal 71.

The battery 72 is a device that supplies electric power to the vibration applying device 62 and the ECU 70. The battery 72 according to the present embodiment has a substantially rectangular parallelepiped external shape as shown in FIG. 21. The cage 80 is a container (case) that holds the vibration applying device 62, the ECU 70, and the battery 72, and has the appearance shown in FIG. Hereinafter, the configuration of the cage 80 will be described in detail.

The cage 80 is a resin container formed in a substantially boat shape, and has an opening at the upper end. This opening extends to the upper portion of the front end of the cage 80. Further, a battery accommodating space (not shown) is provided below the bottom wall of the cage 80 so that the lower surface of the bottom wall is recessed in a substantially rectangular parallelepiped shape. The battery 72 is fitted in the battery accommodating space, and the battery 72 is fixed to the bottom wall of the cage 80 by a screw or the like. As a result, as shown in FIG. 20, the battery 72 is held on the bottom wall of the cage 80.

The cage 80 has a side wall 80a around the bottom wall. The side wall 80a is provided so as to surround the bottom wall of the cage 80. Then, as shown in FIG. 21, the vibration applying device 62 and the ECU 70 are held (accommodated) in the space surrounded by the side wall 80a and the bottom wall of the cage 80 (hereinafter, the internal space of the cage 80). Specifically, a plurality of bosses 81 are provided in the area located on the rear side of the internal space of the cage 80. The bosses 81 are provided for screwing the ECU 70, and four bosses 81 are provided at positions corresponding to the corners of the substantially rectangular control board forming the ECU 70. Then, as shown in FIG. 21, the ECU 70 is housed in the rear portion of the internal space of the cage 80, the screw is inserted into the screw fixing hole formed at the corner of the ECU 70, and the screw is fastened to the boss 81. .. As a result, the ECU 70 is held in the cage 80 in a state of being housed in the internal space of the cage 80.

In the internal space of the cage 80, as shown in FIG. 19, the ECU 70 is held on the bottom wall of the cage 80 above the portion raised in a substantially rectangular parallelepiped shape in order to form the battery accommodating space described above. ing.

A motor holding portion 82 is provided in a region located on the front side of the internal space of the cage 80. The motor holding portion 82 has a pair of vertical walls rising from the bottom wall and a pair of orthogonal walls provided so as to be orthogonal to each vertical wall. Then, the motor 63 of the vibration applying device 62 is fitted in the grid-like space surrounded by the vertical wall and the orthogonal wall. After that, the holding plate 83 shown in FIG. 21 is engaged with the outer surface of the motor 63. Further, the holding plate 83 is fixed to a predetermined portion of the cage 80 (strictly speaking, a portion of the bottom wall of the cage 80 that is raised in a substantially rectangular parallelepiped shape in order to form the battery accommodating space described above). As a result, the vibration applying device 62 including the motor 63 is held by the motor holding portion 82 in a state of being pressed by the holding plate 83 by the motor holding portion 82.

As described above, the cage 80 is configured to hold the vibration applying device 62, the ECU 70, and the battery. As a result, in the present embodiment, the number of parts (the number of cages) is smaller than that in the configuration in which the cages are individually provided for the above three devices.

One aspect of the chair according to the present invention described above is as follows.
(1) The seat where the seated person sits and
The detection unit that detects the body signal of the seated person and
A first transmission line connected to the detection unit and transmitting the body signal,
A second transmission line connected to an electronic control unit that executes control based on the body signal and inputting the body signal to the electronic control unit.
A connection portion for connecting the first transmission line and the second transmission line is provided.
The connecting portion is arranged in a through slit formed in a pad material provided on the seat portion and penetrating in the thickness direction.
The positions of the upper end and the lower end of the through slit are deviated in the in-plane direction of the seat portion.
A chair characterized in that the upper surface and the lower surface of the connecting portion each come into contact with at least a part of the pad material in the through slit.
According to the chair described in (1), by arranging the pad materials above and below the through slit so as to be in contact with each other, the detection unit can be moved to the electronic control unit while maintaining the cushioning performance of the seat. The layout space of the transmission line for transmitting signals can be made compact.

(2) In the chair according to (1) above, it is preferable that the through slit is formed in front of the central portion in the front-rear direction of the seat portion.
According to the chair described in (2), by forming the through slit at a position where it is difficult for the load from the seated person to be input, it is possible to suppress the impaired seating feeling.

(3) In the chair described in (1) or (2) above,
With the plurality of the detectors
A plurality of the first transmission lines connected to the plurality of detection units are provided.
It is preferable that the connecting portion has a plurality of transmission lines connected to the plurality of first transmission lines and arranged on a plane along the through slit.
According to the chair described in (3), by making the connection portion thin, the thickness of the arrangement space of the transmission line for transmitting a signal from the detection unit to the electronic control unit can be made compact.

The guide hole 42 shown in FIG. 3 corresponds to an example of the above-mentioned through slit. That is, the chair S shown in FIG. 3 corresponds to an example of the chair according to (1) above.

According to the chair S (and the chair with armrest Sa) according to the present embodiment described above, the ECU 12 that controls the vibration motor 13 can be protected by the holding member 11. Further, by integrating the ECU mounting portion 11B for mounting the ECU 12 on the chair body B with the cover body 11A, the number of component parts of the holding member 11 can be reduced. As a result, the main unit 10 can be made smaller and lighter.

Further, according to the chair S according to the present embodiment, the ECU 12 can be protected from an external impact by holding the ECU 12 between the chair body B and the recess 17.

Further, according to the chair S according to the present embodiment, the awakening device D can be operated by the dry battery 23. As a result, the degree of freedom in installing the chair S can be improved.

Further, according to the chair S according to the present embodiment, the heat dissipation of the ECU 12 can be improved because the ECU 12 attached to the ECU mounting portion 11B and the recess 17 are separated from each other.

Further, according to the chair S according to the present embodiment, the first mounting portion 11Ba and the second mounting portion 11Bb for mounting the ECU 12 are arranged diagonally to the ECU 12, so that the mounting of the ECU 12 can be stabilized.

Further, according to the chair S according to the present embodiment, the heat dissipation of the ECU 12 can be improved by forming the through hole 17A on the surface of the recess 17 facing the chair body B. Further, the inside of the main unit 10 can be confirmed from the through hole 17A.

Further, according to the chair S according to the present embodiment, the end portion of the vibration motor cover member 14 on the chair body B side is closer to the chair body B side than the ECU 12, so that an impact from the chair body B side is received. The ECU 12 can be protected by receiving the vibration motor cover member 14.

Further, according to the chair S according to the present embodiment, the rigidity of the holding member 11 can be improved by providing the rib 16 for connecting the holding member mounting portion 11C of the holding member 11 and the cover main body 11A. ..

Further, according to the chair S according to the present embodiment, the rib 16 is arranged so that at least a part of the vibration motor 13 overlaps with the flat surface extending the surface of the rib 16. It can be efficiently transmitted to the chair body B via 16.

Further, according to the chair S according to the present embodiment, the ECU 12 has a wireless communication unit 12A that performs wireless communication with the wireless communication terminal 2, and thus has a holding member for attaching the ECU 12 having a wireless communication function to the chair body B. The number of 11 component parts can be reduced.

S Chair S1 Seat S2 Backrest S3 Strut S4 Leg S5 Caster Sa Chair with armrest S6 Armrest B Chair body D Awakening device 2 Wireless communication terminal 10 Main unit 11 Holding member 11A Cover body 11B ECU mounting part 11B 2nd mounting part 11C Holding member mounting part 11D Vibration motor mounting part 12 ECU (electronic control unit)
12A Wireless communication part 12B Screw insertion hole 12C Support part insertion hole 13 Vibration motor 14 Vibration motor cover member 15 Through hole 16 Rib 17 Recess 17A Through hole 18 Fixing screw 19 ECU support part 20 Battery end plate 21 Battery cover 22 Rib 23 Dry battery 30 Biosensor 30A Biosensor 31 Harness 40 Resin plate 41 Pad 42 Guide hole 43 Extraction hole 50 Fixing screw 51 1st transmission line 52 2nd transmission line 53 Connection part 53A Transmission line 54 Pad material 55 Detection part 56 Through slit 56A Upper end Part 56B Lower end 57 Front-rear center 58 Frame member 59A Skin material 59B Resin frame 60 Armrest mounting 61 Main unit 62 Vibration applying device 63 Motor 64 Rotor 70 ECU
71 Terminal terminal 72 Battery 80 Cage 80a Side wall 81 Boss 82 Motor holder 83 Holding plate

Claims (10)

A chair including a chair body having a seat portion and an awakening device for awakening a seated person seated on the seat portion.
The awakening device
The sensor that detects the body signal of the seated person and
A vibrating device that applies a vibrating stimulus to the seated person,
An electronic control unit that controls the vibration device based on a body signal detected by the sensor,
It has a holding member for holding the electronic control unit, and has
The holding member is
The cover body that covers the electronic control unit and
An electronic control unit mounting portion that is integrally formed with the cover body and to which the electronic control unit is mounted.
A chair characterized by having a holding member attachment portion for attaching the holding member to the chair body. The cover body has a recessed recess on the chair body side.
The chair according to claim 1, wherein the electronic control unit mounting portion is provided on the surface side of the recess facing the chair body. It has a power supply unit that supplies power to the awakening device, and has a power supply unit.
The chair according to claim 2, wherein the power supply unit is arranged on the back surface side of the concave portion facing the chair body. The electronic control unit mounting portion has a first protruding portion and a second protruding portion that project toward the chair body from the surface of the recess that faces the chair body.
According to claim 2 or 3, the first protrusion, the electronic control unit attached to the second protrusion, and the surface of the recess facing the chair body are separated from each other. The listed chair. The chair according to claim 4, wherein the first protrusion and the second protrusion are arranged diagonally of the electronic control unit. The chair according to any one of claims 2 to 5, wherein a through hole is formed in a surface of the recess facing the chair body. The holding member is
The vibrating device mounting part to which the vibrating device is mounted and the vibrating device mounting portion
It has a vibrating device cover member that covers an exposed portion of the vibrating device that is attached to the vibrating device mounting portion.
The chair according to any one of claims 1 to 6, wherein the end portion of the vibrating device cover member on the chair body side is closer to the chair body side than the electronic control unit. The holding member mounting portion is configured as a flange extending from the cover body.
The chair according to any one of claims 1 to 7, further comprising at least one rib connecting the holding member mounting portion and the cover body. The chair according to claim 8, wherein a flat surface on which the surface of the rib is extended overlaps with at least a part of the vibrating device. The chair according to any one of claims 1 to 9, wherein the electronic control unit has a wireless communication unit that performs wireless communication with a wireless communication terminal.