JPS6144022B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is capable of moving a kneading wheel for performing kneading pine surge, and in particular, can be moved up and down, and at this time, the kneading wheel freely rotates with respect to the drive shaft. This invention relates to a pine surge machine capable of performing rolling pine surge for lengthening the spine.

Pine surge machines that perform such operations have been provided in the past, and since it is preferable to perform rolling pine surge continuously, the machine automatically reverses itself when it reaches the end of the frame. However, this conventional method had the disadvantage that the reversal was instantaneous and the pine surge effect at the end of the frame was not very high.

The present invention has been made in view of these points, and its object is to provide a pine surge machine that enhances the pine surge effect at the moving end of the kneading wheel.

Therefore, the present invention has a drive shaft on which a pair of massaging wheels tilted toward each other are freely rotatable, and a pinion that engages with a rack disposed on a frame of a chair back, a bed, etc. is fixedly installed. It is equipped with a moving drive shaft that moves the drive shaft along the frame by rotation, and both the drive shaft and the moving drive shaft are connected to a motor that can freely rotate forward and backward through a clutch, so that the moving drive shaft moves the kneading wheel. In a pine surge machine whose movement is automatically reversed at the end of the frame, a control circuit that reverses the rotational direction of the motor upon receiving an output from a detection means for detecting that the kneading wheel has reached the end is configured to During the period from receiving the above output to reversing the moving direction of the kneading wheel by transmitting rotation in the opposite direction to the moving drive shaft, the clutch connecting the motor and the moving drive shaft is temporarily disconnected, and During this time, it is characterized by a time-limited circuit that connects a clutch that transmits the rotation of the motor to the drive shaft, and when the kneading wheel reaches the end of the frame and reverses its moving direction, it immediately reverses. Instead of starting to move in the opposite direction, the kneading wheel rotates for a while to perform the kneading massage operation, and then moves in the opposite direction.

The present invention will be described in detail below based on illustrated embodiments. Fig. 1 shows an external appearance of the present invention, and Fig. 1a shows a reclining chair, and Fig. 1b shows a bed.The reclining chair will be explained below. . The reclining chair 2 has a frame 3 made of a pipe, and is provided with a seat 4, a backrest 5, and armrests 6, 6 on both sides. The angle of inclination of the backrest 5 relative to the seat 4 can be changed by operating a reclining lever 7. FIG. 2 is a perspective view of the backrest 5 with the back cover removed, showing the frames 3, 3 on both sides of the backrest 5.
are provided with guide rails 8, 8 each curved along the shape of the backrest 5. A rack 9 is attached to this guide rail 8, and guide wheels 10, 10 on both sides of the mechanism section A can run freely within the guide rail 8, and a pinion 11 that meshes with the rack 9 is attached on both sides of the mechanism section A. It is set in. The mechanism section A will be explained based on FIGS. 3 to 6. A motor M that can freely rotate forward and reverse is attached to one side of the plate-shaped frame 12, and a small pulley 13 fixed to the output shaft of the motor M is arranged on the other side of the plate-shaped frame 12 by a V-belt 14. It is connected to a large pulley 15. A spur gear 17 having two stages of upper and lower teeth is fixed to the lower end of the pulley shaft 16 to which the large pulley 15 is fixed. A pair of worm shafts 18 and 19 parallel to the pulley shaft 16 are arranged on both sides of the pulley shaft 16.
Clutch plates 20 and 21 are loosely fitted to the lower portions of both worm shafts 18 and 19, respectively, and rotate while constantly meshing with the spur gear 17. One clutch plate 20 is the spur gear 1
7 and the other clutch plate 21 meshes with the lower teeth of the spur gear 17. Worm shaft 1
The lower ends of 8 and 19 have non-circular cross sections, and movable clutch plates 23 and 23 are fitted therein so as to be vertically slidable. Both movable clutch plates 23, 23 have hollow shaft parts 25, 25, respectively, in which the lower ends are closed and steel balls 24, 24 are fitted. The steel balls 24, 24 are slidably fitted into the upper portions of the first solenoid SL1 and the second solenoid SL2, and are in contact with the upper surface of each plunger 26, 26. Reference numeral 27 represents a return spring disposed within the hollow shaft portions 25, 25. The rotation of the pulley shaft 16 driven by the motor M rotates both the clutch plates 20 and 21 via the spur gear 17, and the two clutch plates 20 and 21 are loosely fitted onto the worm shafts 18 and 19, respectively. The worm shafts 18 and 19 are not rotated. Now, when the solenoids SL1 and SL2 are energized, the plungers 26 and 26 move upward, and the movable clutch plate 2 that is slidable on the worm shafts 18 and 19 moves upward.
2 and 23 to connect the clutch plate 20 and the movable clutch plate 22, and the clutch plate 21 and the movable clutch plate 23, respectively. The rotation of the pulley shaft 16 is caused by a spur gear 17 to each clutch plate 20,
21, movable clutch plates 22, 23, and worm shafts 18, 19. Both worm shafts 1
8 and 19 are meshed with worm wheels 28 and 29, respectively, and the worm wheel 28 is connected to the hollow shaft 3.
0, and the worm wheel 29 is fixed to the hollow shaft 3.
an intermediate shaft 3 that is coaxially arranged within the 0 and can be rotated separately;
It is fixed to one end of 1. An elliptical gear 32 is also fixed to the hollow shaft 30, and this elliptical gear 3
The driven elliptical gear 33 that meshes with the hollow drive shaft 34
installed on. Worm wheel 2 at one end
A pinion 3 is attached to the other end of the intermediate shaft 31 to which the pinion 9 is fixed.
5 is fixed thereto, and meshes with the pinion 11 at one end of a moving drive shaft 36 that passes through the inside of the drive shaft 34. A pinion 11 is also provided at the other end of the moving drive shaft 36.
is fixed, both pinions 11, 11 mesh with racks 9, 9 attached to the guide rails 8, 8 on both sides, and guide wheels 10, 10 loosely fitted to both ends of the moving drive shaft 36 are attached to the guide rails. It is located within 8,8. A pair of tilted eccentric kneading wheels 37, 37 are attached to the drive shaft 34. This kneading ring 37 consists of an inner ring 38 and an outer ring 39. The inner ring 38 is fixed to the drive shaft 34 in an eccentric and inclined state, and the outer ring 39 is attached to the outer periphery of the inner ring 38.
It is attached so that it can rotate freely. Both kneading wheels 37, 37 are attached so that their eccentric directions are the same and their inclination directions are opposite to each other. Also a pair of massage wheels 37,
37, the inner ring 37 is located on the side of the gearbox 45 that houses the worm shafts 18, 19, etc.
A magnet 46 is attached to the side of the gearbox 45, and a normally open reed switch LS is attached to the side of the gearbox 45.
is installed. Stoppers 49 and 50 provided on the upper and lower outer surfaces of the guide rail 8 in FIGS. 2 and 3 actuate normally-closed limit switches MS ₁ and MS ₂ attached to the side surface of the mechanism section A. , when the mechanism part A reaches the upper end of the guide rail 8, the stopper 49 switches the limit switch.
When MS ₁ is activated and mechanism part A reaches the lower end of guide rail 8, stopper 50 is activated as a limit switch.
MS ₂ is set to work.

The motor M of this mechanism part A, both solenoids SL ₁ ,
SL ₂ , reed switch LS, limit switch MS
are wired as shown in FIG. 8 and connected to each switch of the operating section 47 arranged on the side of the armrest 6 of the reclining chair 2.

The following operation will be explained based on this diagram. With main switch SW ₁ turned on, switch SW ₃ is turned on.
When it is turned on, transistor Tr ₁ turns on, solenoid SL ₁ operates, and the drive shaft 34 of the grinding wheel 37 is turned on.
The clutch to is connected. At the same time, it is input to one input terminal of AND gate _A7 and becomes H level, but since switch _SW2 is off, it is input to the other input terminal of AND gate _A7 , so it is input to H level via inverter _I5 . Therefore, one input terminal of OR gate _O3 is set to H level. The other input terminal of OR gate O ₃ is the switch
Since SW ₂ is off, it is kept at L level, and one input terminal of AND gate A ₈ is set at H level.
Since the switch _SW4 is off, the other input terminal is also at H level due to the inverter _I6 , and the OR gate _O4 , whose one input terminal is at the L level, outputs a signal to turn on the transistor _Tr3 . As a result, the contact of relay Rya is turned on, sending an output signal to the bidirectional three-terminal thyristor Ta to make it conductive, and the motor M starts rotating in the normal direction. In other words, the kneading wheel 37 is caused to perform a massage operation. If switch SW ₃ is inserted into the other d side, the solenoid
When _SL1 is activated _{, the} AND _gate
A ₁ , OR gate O ₁ , AND gate A ₂ , and OR gate O ₂ output H level outputs, turning on transistor Tr ₄ . Therefore, the contact of relay Ryb is turned on, and the bidirectional three-terminal thyristor Tb is turned on, and the motor M
begins to reverse. The kneading wheel 37 starts kneading operation. When switch SW ₂ is turned to the a side while switch SW ₃ is in the off state, transistor Tr ₁ is forcibly turned off, transistor Tr ₂ is turned on via limit switch MS ₁ , and solenoid SL ₂ is activated. , a moving drive shaft 36 is connected to a motor M. Also, only one input terminal of the OR gate _O1 becomes H level, turning on the transistor _Tr4 via the AND gate _A2 and the OR gate _O2 , closing the contact of the relay Ryb, and causing the motor M to rotate in the reverse direction. As a result, the mechanism section A starts moving upward. If switch SW ₃ is turned to the c side and switch SW ₂ is turned to the a side while motor M is rotating forward, both input terminals of AND gate A ₇ will not go to H level, so the switch will When SW ₂ is turned on, relay Rya is restored, and the rotation direction control by switch SW ₂ takes priority over the rotation direction of motor M by switch SW ₃ . Further, when the mechanism part A moves up to the upper limit, the limit switch _MS1 is operated by the stopper 49 to open the contact part, turn off the transistor _Tr2 , and return the solenoid _SL2 , so that the upward movement is stopped. When switch SW ₂ is turned on to the b side, transistor Tr ₂ is turned on via limit switch MS ₂ , solenoid SL ₂ is activated, and transistor Tr ₃ is activated via AND gate A ₇ .
When the relay Rya is turned on, the motor M is rotated in the forward direction, and the mechanical part A is moved downward. When it descends to the lower limit, the limit switch MS ₂ is turned off and the solenoid SL ₂ is reset, so that the descent is stopped and the kneading wheel 37 performs the kneading operation at that position.
When switch SW ₃ is turned on to the d side, the switch
When SW ₂ is turned on to the b side, the output of inverter I ₁ becomes L level and the output of AND gate A ₁ becomes L level, so forward rotation of motor M by switch SW ₂ is prioritized. To perform Rolling Gumatsu Surge, just insert Switch SW ₄ . Then, either the Q terminal or the terminal of flip-flop FF ₁ composed of AND gates A ₃ and A ₄ and inverters I ₃ and I ₄ becomes H level, and an H level signal is output from AND gate A ₅ or AND gate A ₆ . output. Now, assuming that the Q terminal of flip-flop _FF1 is at H level, the motor M starts rotating in reverse. Further, when the switch SW ₄ is turned on, the transistor Tr ₂ is turned on via the limit switches MS ₁ and MS ₂ to operate the solenoid SL ₂ . At the same time, transistor Tr ₁ is also turned on to operate solenoid SL ₁ . Therefore, the mechanism part A starts upward movement while causing the kneading wheel 37 to perform a kneading motion. However, at the beginning of the rotation of the massaging wheel 37, the magnet 46 exposes the reed switch LS to turn it on, so the transistor _Tr5 is turned on, and the base potential of the transistor _Tr1 is set to zero, turning it off. Reset solenoid SL ₁ . As a result, the magnet 46 of the drive shaft 34 is connected to the reed switch.
The rotation is stopped at the position facing the LS, and the mechanism part A continues to move upward. At this time, the outer ring 39 of the kneading wheel 37 is freely rotatable relative to the inner ring 38, so the outer ring 39 rotates in contact with the human body and performs an upward movement, that is, rolling. When the mechanical section A reaches the upper limit, the limit switch _MS1 is turned off, so that the potential at the terminal becomes L level and is input to the flip-flop _FF1 , inverting the output to the terminal side. For this purpose, the transistor Tr ₃ is turned on via the AND gate A ₆ and the OR gate O ₄ , and the contacts of the relay Ryb are made conductive to change the motor M to normal rotation, and the mechanical part A is lowered. When it starts rolling downward and reaches the lower limit, limit switch _MS2 turns off and the potential at the terminal becomes zero.
The flip-flop _FF1 is inverted and outputted from the Q terminal again, and starts rising to perform upward rolling. In this way limit switch MS ₁ ,
MS ₂ operates alternately to cause the kneading wheels 37, 37 to roll while moving up and down between the upper and lower limits. By the way, for switch SW ₄ , flip-flops FF ₂ , FF ₃ and AND gates A ₉ , A ₁₀
are added to the control circuit of transistors Tr ₁ , Tr ₂ , Tr ₃ , Tr ₄ and the flip-flop FF ₂
and AND gate A ₉ and between flip-flop FF ₃ and AND gate A ₁₀ are resistors R ₅ ,
R ₆ , capacitor C ₃ , diode D ₃ and resistor R ₇ ,
R ₈ , capacitor C ₄ , diode D ₄ and anti-R ₉ ,
R ₁₀ , capacitor C ₅ , diode D ₅ and resistor
Each time limit circuit with R ₁₁ , R ₁₂ , capacitor C ₆ , and diode D ₆ and diodes D ₇ , D ₈ , D ₉ , and D ₁₀ are inserted. Therefore, when switch SW ₄ is turned on, AND gate _A 9 and AND gate A ₁₀ are activated with a time delay due to R ₅ , C ₃ or R ₇ , C ₄ and R ₉ , C ₅ or R ₁₁ , C ₆ . The output of becomes H level and starts operation by turning on transistors Tr ₁ and Tr ₂ and transistor Tr ₃ or Tr _4. Next, when reed switch LS is turned on and transistor Tr ₅ is turned on, transistor Tr ₁ is turned on as described above. off and the rolling pine surge begins. When the upper and lower ends are reached, the limit switch is turned on.
When either MS ₁ or MS ₂ is turned off, the output of AND gate A ₉ is at L level for a while due to the inversion of the outputs of flip-flops FF ₂ and FF ₃ and the charging/discharging characteristics of each time limit circuit, and during this period, the transistor Tr is turned off. ₂
is turned off, and the massaging wheels 37, 37 often stop moving. At this time, if switch SW ₃ had been turned on to either c or d, the AND gate would cause the output to be at L level for a while together with AND gate A ₉ .
The transistor Tr ₅ is turned off by A ₁₀ , the transistor Tr ₁ is turned off via the diode D ₁₁ or D ₁₂ , and the kneading wheels 37 perform the kneading or kneading operation. ANDGATE A ₉ and A ₁₀
When it reaches the H level, the massaging wheels 37, 37, which wait for the reed switch LS to turn on again, stop the rotational drive by the drive shaft 34 at a fixed rotation position, and the rolling pine surge continues. In other words, when only switch SW ₄ is turned on, the kneading wheel 37 is stopped for a while (about 0.5 to 3 seconds) at its upper and lower ends, and then the moving direction of the kneading wheel 37 is reversed to perform rolling pine surge. Yes, switch SW ₃
If the switch SW ₄ is turned on with the kneading wheel 37 placed in the c side or d side, the kneading wheel 37 will stop moving for a while at the upper and lower ends of its movement, and at the same time, the kneading wheel 37 will be fixed during this movement stop period. The provided drive shaft 34 is connected to a motor M to rotate and perform pine surge. FIG. 9 shows a time chart of the outputs of the flip-flops FF ₁ , FF ₂ , and FF ₃ and the base voltages of the transistors Tr ₁ , Tr ₂ , Tr ₃ , and Tr ₄ when the massage surge is performed during the movement stop period. In the figure, and A to A correspond to the same numbers and symbols in FIG. The operation by switch SW ₄ has priority over the operation by switch SW ₃ , but this priority order is canceled only when the upper and lower ends are reached, and the massaging wheels 37, 37 perform sideburns or massaging according to the selection of switch SW ₃ . It performs a lowering action.

As described above, in the present invention, when the movement of the massage wheel reaches the end of the frame, it stops for a while during reversal, so it is possible to obtain an accented pine surge, and the time during which the massage wheel is in contact with each part of the human body. can be made substantially equal, and the range in which rolling pine surge can be performed can be substantially expanded.

[Brief explanation of the drawing]

Figures 1a and b are perspective views of an embodiment of the rolling pine surge machine of the present invention, Figure 2 is a rear perspective view of the same, Figure 3 is an exploded perspective view of the same, and Figure 4 is the mechanism of the same. FIG. 5 is a cross-sectional view of the same as above, FIG. 6 is a vertical cross-sectional view of the same as above, FIG. 7 is a partial perspective view of same as above, FIG. 8 is a circuit diagram of same as above, and FIG. 9 is same as above. This is the main part time chart. 3 is the frame, 9 is the rack, 11 is the pinion,
34 is a drive shaft, 36 is a moving drive shaft, and 37 is a kneading wheel.

Claims (1)

[Claims] 1 A drive shaft is equipped with a pair of mutually inclined kneading wheels that can rotate freely, and a pinion that engages with a rack installed on the frame of a chair back, bed, etc. is fixedly installed. It is equipped with a drive shaft for movement that moves along the frame, and both the drive shaft and the drive shaft for movement are connected to a motor that can freely rotate forward and backward through a clutch, so that the movement of the kneading wheel by the drive shaft for movement is at the end of the frame. In a pine surge machine that automatically reverses rotation at the end, a control circuit that reverses the rotational direction of the motor in response to an output from a detection means that detects that the kneading wheel has reached an end is configured to receive the output from the detection means. The clutch that connects the motor and the drive shaft is temporarily disconnected, and the rotation of the motor is stopped during this period until the movement direction of the kneading wheel is reversed by transmitting rotation in the opposite direction to the drive shaft. A pine surge machine characterized by being equipped with a time limit circuit that connects a clutch that transmits information to a drive shaft.