Furniture interlocking system

Abstract

To provide a furniture interlocking system capable of avoiding operation control of operation object furniture that is not intended by a user.SOLUTION: A furniture interlocking system 100 includes: a chair 10 having a leg part 11 capable of changing a height position of a seat part 12, a heigh position change amount detection part 16A for detecting a height position change amount of the seat part 12, and a first operation control part 17 for generating a first operation control signal on the basis of the height position change amount of the seat part 12; and a desk 20 having a leg part 21 having a motor 21B for lifting a cylindrical body and capable of changing its height, and a desk side operation control part 24 for controlling an operation of the motor 21B for lifting the cylindrical body on the basis of the first operation control signal. When the height position change amount detected by the height position change amount detection part 16A repeats increase and decrease in a range of a posture change determination reference time set beforehand, the chair side operation control part 17 temporarily stops detection of a posture change amount by the height position change amount detection part 16A.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a fixture linkage system, and more specifically, to a fixture linkage system that detects the operation of a fixture to be operated and enables the operation of a fixture to be operated to be linked to the operation of the fixture to be operated. [Background technology]

[0002] There is a furniture system that changes the height of a monitor screen, which is a furniture to be operated, in accordance with the change in the height of a table, which is a furniture from which the operation originates. An example of such a furniture system is the configuration disclosed in Patent Document 1 (Japanese Patent No. 6865539). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6865539 (claims 1-2, paragraph 0075, figures 1-3, etc.) Summary of the Invention [Problem to be solved by the invention]

[0004] The fixture system disclosed in Patent Document 1 employs a configuration in which the target fixture moves in conjunction with even a slight change in the movement (posture) of the source fixture. This creates a problem in that the target fixture moves in conjunction with the change in movement of the source fixture even if the user does not want the change in movement of the target fixture. [Means for solving the problem]

[0005] The present invention is therefore intended to solve the above problems, and its objectives are as follows: That is, the present invention aims to provide a fixture interlocking system in which the target fixture does not perform interlocking operation in response to a change in the operation (posture change) of the operating fixture that the user does not want the target fixture to perform interlocking operation.

[0006] As a result of intensive research by the inventors to solve the above problems, the inventors have come up with the following configuration: That is, the present invention is an operation source fixture having a first posture change unit whose posture can be changed by a first drive unit or manually, a posture change amount detection unit that detects the posture change amount of the first posture change unit, a first operation control unit that controls the operation of the posture change amount detection unit and generates an operation control signal based on the posture change amount, and a first communication unit; and at least one operation target fixture having a second posture change unit whose posture can be changed and has a second drive unit, a second operation control unit that controls the operation of the second drive unit based on the operation control signal, and a second communication unit, wherein the first operation control unit receives the operation control signal from the first communication unit. In a fixture linkage system in which a control signal is sent to the second communication unit of the fixture to be operated, and the second operation control unit changes the posture of the second posture change unit by operating the second drive unit in the fixture to be operated based on the operation control signal sent from the operating fixture, the first operation control unit is characterized in that when the posture change amount detected by the posture change amount detection unit repeatedly increases and decreases within a predetermined posture change judgment reference time range, the first operation control unit temporarily stops detection of the posture change amount by the posture change amount detection unit.

[0007] This makes it possible to prevent the fixture to be operated from performing a linked operation when the posture of the fixture to be operated changes in a way that the user does not want the fixture to perform a linked operation.

[0008] The present invention also includes an operating source fixture having a first attitude change unit whose attitude can be changed by a first driving unit or manually, an attitude change amount detection unit that detects an amount of attitude change of the first attitude change unit, a storage unit that stores the amount of attitude change detected by the attitude change amount detection unit as an accumulated attitude change amount, a first operation control unit that generates an operation control signal based on the amount of attitude change, and a first communication unit; and at least one operating target fixture having a second attitude change unit whose attitude can be changed and a second operation control unit that controls the operation of the second driving unit based on the operation control signal, and a second communication unit, The first operation control unit, when the cumulative posture change amount stored in the memory unit becomes equal to or greater than a predetermined threshold, generates an operation control signal for controlling the operation of the second drive unit in the fixture to be operated based on the cumulative posture change amount, and transmits the operation control signal from the first communication unit to the second communication unit of the fixture to be operated, and the second operation control unit can also be characterized in that it operates the second drive unit based on the operation control signal transmitted from the first communication unit to change the posture of the second posture change unit.

[0009] This makes it possible to prevent the operation of the target fixture from interlocking with slight changes in the posture of the operating fixture, which the user does not want to cause. Also, by storing slight posture changes in the memory as cumulative posture changes and setting a threshold, the target fixture can be made to interlock when the cumulative posture change reaches or exceeds a predetermined threshold.

[0010] Preferably, the operation source furniture is a chair. Preferably, the first position change unit is a leg and the position change amount is a change in height of a seat attached to the leg, or the first position change unit is a seat and a back and the position change amount is a rocking angle, or the first position change unit is a leg and the position change amount is a rotation angle of the seat attached to the leg about an axis of the leg.

[0011] As a result, the furniture to be operated can be operated in conjunction with a predetermined change in posture in the chair.

[0012] Furthermore, when the posture change amount detected by the posture change amount detection unit repeatedly increases and decreases within a range of a preset posture change judgment reference time, it is preferable that the first operation control unit detects the difference in the posture change amount before and after the posture change judgment reference time as the posture change amount, and stores the detected posture change amount in the memory unit as the cumulative posture change amount.

[0013] This allows, when fine adjustment is made to the posture change part of the fixture from which the operation is performed, the amount of posture change after the fine adjustment is completed to be grasped as the cumulative amount of posture change. [Effects of the Invention]

[0014] According to the configuration of the present invention, it is possible to prevent the operation of the operated fixture in conjunction with a change in the posture of the operated fixture that the user does not want the operated fixture to perform interlocking operation. Also, it is possible to prevent the operated fixture from performing interlocking operation in conjunction with a slight change in the posture of the operated fixture that the user does not want the operated fixture to perform interlocking operation, and by storing the slight posture change amount as a cumulative posture change amount and setting a predetermined threshold value in advance, it is possible to perform interlocking operation of the operated fixture by changing the posture of the operated fixture when the cumulative posture change amount reaches or exceeds the predetermined threshold. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a schematic diagram of a fixture linkage system according to an embodiment of the present invention. [Figure 2] 1 is a schematic diagram of a chair according to an embodiment of the present invention; [Figure 3] FIG. 2 is a schematic diagram of a desk according to the present embodiment. [Figure 4] FIG. 10 is an explanatory diagram showing the state of chairs and desks in the furniture linkage system in the reference state. [Figure 5]FIG. 10 is an explanatory diagram showing the state of chairs and desks in the fixture linkage system in an example of usage state. [Figure 6] FIG. 10 is an explanatory diagram showing the state of chairs and desks in the fixture linkage system in an example of usage state. [Figure 7] FIG. 10 is an explanatory diagram showing the state of chairs and desks in the fixture linkage system in an example of usage state. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, an embodiment of the furniture interlocking system 100 according to the present invention will be described with reference to the drawings. In this embodiment, the furniture interlocking system 100 will be described using a chair 10 as the source furniture and a desk 20 as the target furniture, but the source furniture is not limited to the chair 10, and the target furniture is not limited to the desk 20.

[0017] As shown in FIGS. 1 and 2, a chair 10 in this embodiment has legs 11, a seat 12 attached to the legs 11, and a back 13. Here, the legs 11, the seat 12, and the back 13 constitute a first position change unit. The legs 11 have a ground contact portion 14 and a leg support 15 extending upward from the ground contact portion 14 in an extendable and retractable manner. The seat 12 in this embodiment is attached to the upper end of the leg support 15, and the user (seat occupant) can adjust the height position of the seat 12 relative to the ground surface of the chair 10 by operating an operating lever (neither of which is shown) of a gas cylinder attached to the leg support 15. The seat 12 is also attached so as to be rotatable (rotatable) around the central axis of the leg support 15. The angle of inclination of the back 13 relative to the seat 12 can be changed (rocked). Note that the term "rocking" in this specification includes the concept of so-called reclining. In short, rocking is defined as a change in the inclination angle of the back 13 relative to the seat 12.

[0018] The amount of change in height of the seat 12 relative to the ground surface (the amount of extension and contraction of the leg support 15) is measured by a height change amount detection unit 16A, typically a digital caliper or linear encoder. Furthermore, the amount of change in the rotation angle of the seat 12 relative to its initial position (here, the rotation angle of the leg support 15 relative to the ground surface 14) is detected by a rotation angle change amount detection unit 16B, typically a rotary encoder. Furthermore, the amount of change in the rocking angle of the back 13 relative to its initial position is detected by a rocking angle change amount detection unit 16C, typically a rotary encoder. In this embodiment, the height change amount detection unit 16A, the rotation angle change amount detection unit 16B, and the rocking angle change amount detection unit 16C constitute a posture change amount detection unit 16.

[0019] The reference height position of the seat 12 relative to the ground surface, the reference position for rotation around the central axis of the leg support 15, and the reference tilt angle of the back 13 relative to the seat 12 are all pre-stored as initial positions in the chair-side memory unit 18, which serves as a memory unit, but the user can also store any state as the initial position by executing a predetermined procedure in the chair-side memory unit 18.

[0020] The amount of change in standing height relative to the initial position detected by height position change amount detection unit 16A, the amount of change in rotation angle relative to the initial position detected by rotation angle change amount detection unit 16B, and the amount of change in rocking angle relative to the initial position detected by rocking angle change amount detection unit 16C are stored in chair-side memory unit 18 by chair-side motion control unit 17, which serves as a first motion control unit. Examples of chair-side motion control unit 17 include a CPU and an MPU. In addition, in the chair-side memory unit 18 of this embodiment, a posture change determination reference time, which is data for determining whether a posture change of chair 10 is an intended change in the posture of desk 20 by the user (seater), is stored in advance. If any of the posture change detection amounts by each of the posture change amount detection units 16 repeatedly increase and decrease within the range of the posture change judgment reference time stored in advance in the chair side memory unit 18, the chair side operation control unit 17 determines that the user (seat occupant) has no intention of changing the posture of the desk 20, and executes a process to temporarily stop the detection of posture change amount for each of the posture change amount detection units 16 whose posture change amount repeatedly increases and decreases.

[0021] By performing such processing by chair-side operation control unit 17, tackling when seated on seat 12, small rotational movements in the horizontal plane while seated, and swaying in the forward and backward directions when rocking are not detected as posture changes by posture change amount detection unit 16. This is advantageous in that posture changes of chair 10 that are not intended by the user (occupant) of chair 10 to change the posture of desk 20 (interlocking movement) are not detected, thereby preventing unintended posture changes of desk 20 (interlocking movement) by the user. Furthermore, the posture change determination reference time can be set individually for height position change amount detection unit 16A, rotation angle change amount detection unit 16B, and rocking angle change amount detection unit 16C, including not setting a posture change determination reference time.

[0022] If there is a difference in the amount of posture change detected by each of the posture change amount detectors 16 before and after the posture change determination reference time, the chair-side motion control unit 17 determines that the user (seater) intends to change the posture of the desk 20, and appropriately stores the detected amount of change in standing height, amount of change in rotation angle, and amount of change in rocking angle in the chair-side memory unit 18. Then, the chair-side motion control unit 17, which serves as a motion control signal generator, generates a motion control signal based on each of the amount of change in standing height, amount of change in rotation angle, and amount of change in rocking angle stored in the chair-side memory unit 18. Here, a first motion control signal based on the amount of change in standing height, a second motion control signal based on the amount of change in rotation angle, and a third control signal based on the amount of change in rocking angle are generated.

[0023] In addition, the chair-side operation control unit 17 in this embodiment also stores the posture change detected by the height position change detection unit 16A and the rocking angle change detection unit 16C as a cumulative height position change and a cumulative rocking angle change in the chair-side memory unit 18. In this embodiment, the cumulative height change, which is the cumulative change in standing height change, the cumulative rotation angle change, which is the cumulative change in rotation angle change, and the cumulative rocking angle change, which is the cumulative change in rocking angle change, correspond to the cumulative posture change. Furthermore, the chair-side memory unit 18 can also store in advance a height change threshold for the cumulative height change, a cumulative rotation change threshold for the cumulative rotation angle change, and a rocking angle change threshold for the cumulative rocking angle change.

[0024] In this embodiment, the cumulative height change, cumulative rotation angle change, and cumulative rocking angle change constitute a cumulative posture change threshold. The chair-side motion control unit 17 can generate a first motion control signal when the cumulative height change is equal to or greater than the height change threshold. The chair-side motion control unit 17 can also generate a second motion control signal when the cumulative rotation angle change is equal to or greater than the rotation change threshold. The chair-side motion control unit 17 can also generate a third motion control signal when the cumulative rocking angle change is equal to or greater than the rocking angle change threshold. By performing such processing, usability is improved in that the posture of the desk 20 is not changed even when the user (seater) only makes minor adjustments to the posture of the chair 10.

[0025] Furthermore, when the chair-side motion control unit 17 in this embodiment generates any of the first, second, and third motion control signals, it performs processing to reset the values ​​of the cumulative height change, cumulative rotation angle change, and cumulative rocking angle change corresponding to the generated motion control signal to zero. This is advantageous in that when the chair-side motion control unit 17 generates any of the first, second, and third motion control signals, the desk 20 can be used without changing its posture even if fine adjustments are made until the cumulative posture change corresponding to the generated motion control signal reaches the cumulative posture change threshold.

[0026] The first, second, and third motion control signals generated by chair-side motion control unit 17, which serves as a motion control signal generation unit, are stored in chair-side memory unit 18 and transmitted from chair-side communication unit 19, which serves as a first communication unit, to desk-side communication unit 26 of desk 20, which will be described later. Chair-side motion control unit 17, chair-side memory unit 18, and chair-side communication unit 19 may be electrically connected directly or indirectly to each of posture change amount detection units 16, and may be provided separately from chair 10.

[0027] 1 and 3, the desk 20 in this embodiment has legs 21, a top board 22 attached to the legs 21, an auxiliary table 23 as a functional item attached to the legs 21 or the top board 22, a desk-side operation control unit 24 as a second operation control unit, a desk-side memory unit 25, and a desk-side communication unit 26 as a second communication unit. Here, the legs 21, the top board 22, and the auxiliary table 23 constitute a second posture change unit. The desk-side operation control unit 24 can be configured by a calculation means such as a CPU or an MPU, and a operation control program (not shown) stored in the desk-side memory unit 25.

[0028] In this embodiment, the legs 21 have a so-called telescopic structure consisting of multiple cylindrical bodies 21A with the same cross-sectional shape and overlapping each other at the inner and outer surfaces. The legs 21 can be extended or retracted by sequentially extending or retracting the cylindrical bodies 21A. The legs 21 are disposed on the left and right sides of the desk 20. A cylindrical body lifting motor 21B, which is part of a second drive unit that raises and lowers each of the cylindrical bodies 21A, is housed in the internal space of the legs 21 (cylindrical bodies 21A). The tabletop 22 is attached to the upper end of the legs 21 so as to be rotatable about an axis connecting the left and right legs 21 via a tabletop rotation motor 22A, which is part of the second drive unit. The auxiliary table 23 in this embodiment is attached so as to be able to be moved by an auxiliary table movement motor 23A, which is part of the second drive unit, to protrude from the underside of the tabletop 22 toward the chair and to be retracted under the tabletop 22. In this embodiment, the auxiliary table 23 is exemplified as a functional item, but the specific form of the functional item is not particularly limited.

[0029] The desk-side motion control unit 24 receives the first motion control signal, the second motion control signal, and the third motion control signal transmitted from the chair-side communication unit 19 via the desk-side communication unit 26 and stores them in the desk-side memory unit 25. The desk-side motion control unit 24 also controls the operation of the cylinder lifting motor 21B based on the first motion control signal to raise the leg 21 to a predetermined height. The desk-side motion control unit 24 also controls the operation of the auxiliary table moving motor 23A based on the second motion control signal to extend or retract the auxiliary table 23. The desk-side motion control unit 24 also controls the operation of the tabletop rotation motor 22A based on the third motion control signal to set the tilt angle of the tabletop 22 relative to the horizontal plane to a predetermined angle. In this way, the furniture interlocking system 100 of this embodiment can appropriately change the posture of the second posture change unit of the desk 20 in response to one or more posture change amounts detected by the first posture change unit of the chair 10.

[0030] Next, an example of how to use the fixture interlocking system 100 in the present embodiment described above will be described. Figure 4 is an explanatory diagram showing the state of the chairs 10 and desks 20 in the fixture interlocking system 100 in a reference state. The reference state shown in Figure 4 is the so-called reference state at the time of factory shipment. The reference state of the chairs 10 and desks 20 in the fixture interlocking system 100 can also be set to any state set by the user.

[0031] Fig. 5 is an explanatory diagram showing the state of chair 10 and desk 20 in furniture interlocking system 100 in an example of a usage state. Specifically, from the reference state shown in Fig. 4, the user (seater) intentionally extends leg support 15 of chair 10, thereby raising the height position of seat 12 by a predetermined height (a height equal to or greater than the height change threshold) from the reference state. In this case, chair-side operation control unit 17 determines that the height change detected by height position change detection unit 16A does not repeatedly increase and decrease within the posture change determination reference time range, and therefore stores the height change detected by height position change detection unit 16A in chair-side memory unit 18 as the cumulative height change.

[0032] If the chair-side motion control unit 17 determines that the cumulative height change is equal to or greater than the height change threshold pre-stored in the chair-side memory unit 18, it generates a first motion control signal based on the cumulative height change and transmits it from the chair-side communication unit 19 to the desk-side communication unit 26. Based on the first motion control signal, the desk-side motion control unit 24 activates the cylinder lifting motor 21B to extend the legs 21 of the desk 20 to a predetermined height. After transmitting the first motion control signal to the desk-side communication unit 26, the chair-side motion control unit 17 can also reset the cumulative height change to zero. If the chair-side motion control unit 17 determines that the cumulative height change, which is the amount of the first height position change of the seat 12 intentionally made by the user, is equal to or less than the height change threshold pre-stored in the chair-side memory unit 18, the chair-side motion control unit 17 does not generate the first motion control signal and waits for the height position change detection unit 16A to detect the height position change amount in the next height position operation.

[0033] Fig. 6 is an explanatory diagram showing the state of chair 10 and desk 20 in furniture interlocking system 100 in an example of a usage state. Specifically, this is a state in which the user (seater) has voluntarily rotated seat 12 (within a horizontal plane) around the axis of leg support 15 from the reference state shown in Fig. 4. In this case, chair-side operation control unit 17 determines that the amount of change in rotation angle detected by rotation angle change amount detection unit 16B does not repeatedly increase and decrease within the range of the posture change determination reference time, and therefore stores the amount of change in rotation angle detected by rotation angle change amount detection unit 16B in chair-side memory unit 18 as the cumulative amount of change in rotation angle.

[0034] When the chair-side operation control unit 17 determines that the cumulative rotation angle change amount is equal to or greater than the rotation angle change amount threshold pre-stored in the chair-side memory unit 18, it generates a second operation control signal based on the cumulative rotation angle change amount and transmits the signal from the chair-side communication unit 19 to the desk-side communication unit 26. Based on the second operation control signal, the desk-side operation control unit 24 activates the auxiliary table moving motor 23A to store the auxiliary table 23 of the desk 20 under the top board 22. By performing this processing, the user (seat occupant) can smoothly leave and take up their seat. Note that when the chair-side operation control unit 17 determines that the cumulative rotation angle change amount has returned to the initial state, it activates the auxiliary table moving motor 23A to pull the auxiliary table 23 of the desk 20 out from under the top board 22 toward the chair 10.

[0035] If the cumulative rotation angle change amount of the seat 12 due to the user's intention is equal to or less than the rotation angle change amount threshold stored in the chair-side memory 18, the chair-side operation control unit 17 does not generate the second operation control signal and waits for the rotation angle change amount detection unit 16B to detect the rotation angle change amount in the next rotation angle change operation. Furthermore, if the cumulative rotation angle change amount upper limit threshold is stored in the chair-side memory 18, the following processing can also be executed. That is, if the chair-side operation control unit 17 determines that the cumulative rotation angle change amount when the seat 12 is rotated due to the user's intention is equal to or greater than the rotation angle change amount threshold and also equal to or greater than the rotation angle change amount upper limit threshold, the chair-side operation control unit 17 performs processing not to generate the second operation control signal. This is advantageous in that, for example, when the rotation angle of the seat 12 around the central axis of the leg support 15 in the horizontal plane is 360 degrees or more, it can be determined that the user (seat occupant) does not intend to leave their seat, and unnecessary retraction of the auxiliary table 23 can be avoided.

[0036] 7 is an explanatory diagram showing the state of the chair 10 and desk 20 in the furniture interlocking system 100 in an example of a usage state. Specifically, this is a state in which the user (seater) has voluntarily tilted the back 13 from the reference state shown in FIG. 4 to a predetermined angle (an angle equal to or greater than the cumulative rocking angle change amount). In this case, the chair-side operation control unit 17 determines that the rocking angle change amount detected by the rocking angle change amount detection unit 16C has not repeatedly increased and decreased within the posture change determination reference time range, and therefore the rocking angle change amount detected by the rocking angle change amount detection unit 16C is stored in the chair-side memory unit 18 as the cumulative rocking angle change amount.

[0037] When the chair-side motion control unit 17 determines that the cumulative rocking angle change is equal to or greater than the rocking angle change threshold pre-stored in the chair-side memory unit 18, the chair-side motion control unit 17 generates a third motion control signal based on the cumulative rocking angle change and transmits it from the chair-side communication unit 19 to the desk-side communication unit 26. Based on the third motion control signal, the desk-side motion control unit 24 activates the tabletop rotation motor 22A to tilt the tabletop 22 of the desk 20 until it reaches a predetermined angle with respect to the horizontal plane. Here, as the rocking angle increases, the chair-side end of the tabletop 22 tilts downward and the end of the tabletop 22 facing the chair-side end tilts upward. After transmitting the third motion control signal to the desk-side communication unit 26, the chair-side motion control unit 17 can also reset the cumulative rocking angle change to zero.

[0038] If the cumulative rocking angle change amount, which is the first rocking angle change amount of the back 13 at the user's discretion, is less than the rocking angle change amount threshold value pre-stored in the chair-side memory unit 18, the chair-side operation control unit 17 does not generate the third operation control signal, but waits for the rocking angle change amount detection unit 16C to detect the rocking angle change amount in the next rocking angle change operation.

[0039] 5 to 7, only one of the cumulative height position change, cumulative rotation angle change, and cumulative rocking angle change amounts, which are the posture change amounts in chair 10, is changed. However, the present invention is not limited to these examples. When a composite posture change of chair 10 is performed that appropriately combines the height position change amount of seat 12 relative to the ground surface, the rotation angle change amount of seat 12 about the central axis of leg support 15 in the horizontal plane, and the rocking angle change amount of backrest 13, it is also possible to simultaneously change the posture of second posture change unit 20 in accordance with the height position change amount of seat 12 relative to the ground surface, the rotation angle change amount of seat 12 about the central axis of leg support 15 in the horizontal plane, and the rocking angle change amount of backrest 13.

[0040] Although the furniture interlocking system 100 according to the present invention has been described in detail above based on an embodiment, the present invention is not limited to the above embodiment. For example, in the above embodiment, the leg support 15 of the leg 11 of the chair 10 is illustrated as a so-called manual height adjustment chair, in which the user (seater) changes the height of the leg support 15 by operating an operating lever attached to a gas cylinder. However, the present invention is not limited to this configuration. The leg 11 may also be configured as a so-called telescopic structure consisting of multiple cylindrical bodies (not shown) with the same cross-sectional shape as the leg 21 of the desk 20, overlapping each other on the inner and outer surfaces, and may include a built-in lifting motor corresponding to a first drive unit (not shown) that raises and lowers the cylindrical bodies, and may further include an operation button (not shown) that operates the lifting motor. Thus, the height adjustment method of the chair 10 is not limited to either manual or automatic.

[0041] In addition, in the above embodiment, the seat portion 12 and the back portion 13 are independent from each other, but the back portion 13 may be formed integrally with the seat portion 12. In this case, the inclination angle of the integrated seat portion 12 and back portion 13 relative to the leg support 15 becomes the rocking angle.

[0042] Furthermore, in the above embodiment, the chair 10 is exemplified as having the back 13 attached to the seat 12, but it is also possible to adopt a chair 10 in which the back 13 is omitted. In the case of this chair 10, there is no change in the rocking angle, so the rocking angle change detection unit 16C is omitted and the third operation control signal is not generated.

[0043] Furthermore, in the above embodiment, the detected value when the posture change amount detected by posture change amount detection unit 16 does not repeatedly increase and decrease within the posture change judgment reference time range is stored in chair-side memory unit 18 as the cumulative posture change amount, and a movement control signal is generated when the cumulative posture change amount becomes equal to or greater than the cumulative posture change amount threshold stored in chair-side memory unit 18, but this is not limiting. If the posture change amount detected by posture change amount detection unit 16 does not repeatedly increase and decrease within the posture change judgment reference time range, a movement control signal can also be generated by chair-side movement control unit 17 immediately based on the posture change amount of chair 10 detected by posture change amount detection unit 16.

[0044] Alternatively, the chair-side operation control unit 17 may not use the posture change judgment reference time stored in the chair-side memory unit 18, but may store the posture change amount detected by the posture change amount detection unit 16 in the chair-side memory unit 18 as a cumulative posture change amount, and may generate an operation control signal when the value of the cumulative posture change amount becomes equal to or greater than a cumulative posture change amount threshold value stored in advance in the chair-side memory unit 18.

[0045] Furthermore, in the above-described furniture interlocking system 100, a configuration in which the posture of one desk 20, which is the furniture to be operated, is changed based on the posture change amount of the chair 10, which is the furniture to be operated, is exemplified, but the present invention is not limited to this configuration. Furniture interlocking system 100 may also be configured to change the postures of the second posture change units of multiple furniture to be operated based on the posture change amount of the first posture change unit of one furniture to be operated.

[0046] In addition to the modifications described above, it is also possible to adopt a form in which the modifications described in the embodiment are appropriately combined. [Explanation of symbols]

[0047] 10: Chair (operational fixture) 11: Legs (first posture change part), 12: Seat (first posture change part), 13: Back (first posture change part), 14: Ground contact part, 15: Leg support, 16: Posture change amount detection unit, 16A: Height position change amount detection unit, 16B: rotation angle change amount detection unit, 16C: rocking angle change amount detection unit, 17: Chair side operation control unit, 18: Chair side memory unit, 19: Chair side communication unit (first communication unit) 20: Desk (operable furniture) 21: Legs (second posture change part), 21A: Cylindrical body, 21B: Cylindrical body lifting motor (second drive part), 22: Top plate (second posture change unit), 22A: Top plate rotation motor (second drive unit), 23: Auxiliary table (functional item, second posture change part), 23A: Auxiliary table movement motor (second drive unit), 24: Desk-side operation control unit, 25: Desk-side memory unit, 26: Desk-side communication unit (second communication unit) 100: Fixture linkage system

Claims

1. an operating fixture having a first attitude change unit whose attitude can be changed by a first driving unit or manually, an attitude change amount detection unit that detects an amount of attitude change of the first attitude change unit, a first operation control unit that controls the operation of the attitude change amount detection unit and generates an operation control signal based on the amount of attitude change, and a first communication unit; The apparatus includes a second attitude change unit having a second drive unit and capable of changing attitude, a second operation control unit that controls the operation of the second drive unit based on the operation control signal, and at least one operation target fixture having a second communication unit, The first operation control unit transmits the operation control signal from the first communication unit to the second communication unit of the operation target fixture, In a fixture interlocking system in which the second operation control unit operates the second drive unit in the operation target fixture based on the operation control signal transmitted from the operation source fixture, thereby changing the posture of the second posture change unit, The fixture linkage system is characterized in that the first operation control unit temporarily stops the detection of the posture change amount by the posture change amount detection unit when the posture change amount detected by the posture change amount detection unit repeatedly increases and decreases within a predetermined posture change judgment reference time range.

2. an operating fixture having a first attitude change unit whose attitude can be changed by a first driving unit or manually, an attitude change amount detection unit that detects an amount of attitude change of the first attitude change unit, a storage unit that stores the amount of attitude change detected by the attitude change amount detection unit as an accumulated attitude change amount, a first operation control unit that generates an operation control signal based on the amount of attitude change, and a first communication unit; The apparatus includes a second attitude change unit having a second drive unit and capable of changing attitude, a second operation control unit that controls the operation of the second drive unit based on the operation control signal, and at least one operation target fixture having a second communication unit, When the cumulative posture change amount stored in the storage unit becomes equal to or greater than a preset threshold value, the first operation control unit generates the operation control signal for controlling the operation of the second drive unit in the operation target fixture based on the cumulative posture change amount, and transmits the operation control signal from the first communication unit to the second communication unit of the operation target fixture, A fixture linkage system characterized in that the second operation control unit operates the second drive unit based on the operation control signal transmitted from the first communication unit to change the posture of the second posture change unit.

3. 3. The fixture linkage system according to claim 1, wherein the fixture to be operated is a chair.

4. The first position change portion is a leg portion, 4. The fixture linkage system according to claim 3, wherein the amount of change in posture is an amount of change in height of a seat attached to the leg portion.

5. The first position change portion is a seat portion and a back portion, The fixture linkage system according to claim 3, wherein the amount of change in posture is a rocking angle.

6. The first position change portion is a leg portion, The fixture linkage system according to claim 3, characterized in that the amount of change in posture is a rotation angle of a seat attached to the leg about an axis of the leg.

7. The fixture linkage system described in claim 2, characterized in that when the posture change amount detected by the posture change amount detection unit repeatedly increases and decreases within a predetermined posture change judgment reference time range, the first operation control unit detects the difference in the posture change amount before and after the posture change judgment reference time as the posture change amount, and stores the detected posture change amount in the memory unit as the cumulative posture change amount.

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