JPH1099396A - Massage machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly stop treating fingers at a desired interval by stopping the driving of an attaching and separating means a prescribed degree before a set position corresponding to the operating state of the treating fingers by a speed adjustment means and a position detection means and stopping the treating fingers at the desired interval. SOLUTION: A massage motor 55 is driven in a rubbing direction beforehand, a massage shaft 53 is rotated at various rotation numbers and the encoder pulse number per unit time of the massage shaft 53 before stopping the motor and the moving amount by inertia of rubbing balls at the time of stopping the driving of the massage motor 55 are measured beforehand and stored in a memory. When a hitting operation instruction is inputted during a rubbing massage, after MIDDLE signals by a rear part lead switch are received, the encoder pulse number stored in the memory is counted, power supply to the massage motor 55 is stopped thereafter and the driving is stopped. Then, the rubbing balls 70 are moved for a prescribed distance by the inertia and smoothly stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a massage machine capable of stopping treatment fingers at desired intervals.

[0002]

2. Description of the Related Art Conventionally, there are known chair-type and bed-type massage machines which massage an affected part such as a shoulder and a waist of a user. In this type of device, a pair of treatment fingers are provided inside a backrest against which the user's back touches, and massage massage, tapping massage, and rolling massage for moving the treatment finger from the neck muscle to the waist are performed by the treatment finger. And so on. The treatment finger is driven by a motor. When performing a tapping massage or a rolling massage after performing the massage, it is necessary to stop the motor that has performed the massage. At this time, the interval between the treatment fingers varies depending on the timing of stopping the motor, so that it is difficult to perform subsequent beating or rolling massage at a desired treatment finger interval. For this reason, in Japanese Patent Application Laid-Open No. Hei 7-31649, when shifting from massaging massage to beating or rolling massage, the rotation speed of the motor once massaging is reduced, the treatment finger is moved at low speed, and the treatment finger is moved. A massage machine is disclosed in which when the arrival at a desired position is detected, the rotation of the motor is stopped to set the treatment finger at a desired interval.

[0003]

However, the operation of switching the moving speed of the treatment finger, which has been performing the kneading operation at a high speed, to a low speed and moving the treatment finger until reaching the desired position does not give the user a sense of discomfort. It can make you feel.

[0004] An object of the present invention is to provide a massage machine that can smoothly stop a treatment finger at a desired interval.

[0005]

In order to solve the above-mentioned problems, a massage machine according to the present invention comprises a speed adjusting means for adjusting and detecting an approach / separation speed of a treatment finger by a contact / separation means; Control means for stopping driving of the contact / separation means at a predetermined distance before the set position according to the operation state of the treatment finger by the speed adjustment means and the position detection means, and stopping the treatment finger at a desired interval. It is equipped with. The set position means a stop interval of the treatment finger desired by the user. Further, “before the set position by a predetermined degree” means a distance that the treatment finger moves by inertia when the driving of the contact / separation unit is stopped. The movement distance due to the inertia is set in advance by driving the treatment finger at various approach / separation speeds by the contact / separation means and then stopping, and after stopping the contact / separation means, measuring the distance traveled by the treatment finger, respectively. It is stored in the means.

[0006]

[Operation and Effect] After performing the kneading operation, when performing a hitting massage or a rolling massage, the speed adjusting means detects the approach / separation speed of the treatment finger.
When the position detecting means detects that the treatment finger has reached a predetermined distance before the set stop position, that is, a movement distance of the treatment finger due to inertia, the position detection means stops the driving of the contact and separation means. Even when the approach / separation drive is stopped, the treatment finger moves by a distance corresponding to the moving speed at the time of stopping the contact / separation means due to inertia, and stops completely at the set position. Therefore, the treatment finger can be smoothly stopped at the set position without performing deceleration. After stopping the treatment finger at the set position, a tapping massage and a rolling massage can be subsequently performed.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention relates to a chair-type massage machine (1).
An example applied to (0) will be described. However, the present invention is not limited to the chair type, but can be applied to, for example, a bed-type massage machine and further to a nursing bed. In the embodiment, the direction in which the user faces the chair (12) in FIG. 1 is referred to as front, the opposite direction is referred to as backward, the right hand side is referred to as right, and the left hand side is referred to as left.

[0008] Chair structure described massage machine (10) (12), as shown in FIG. 1, a seat which sit in treated person (13), is upwardly formed from the rear end of the seat portion (13) A backrest (14), and armrests (15) formed upward on both left and right sides of the seat (13). The seat portion (13), the back contact portion (14), and the armrest portion (15) are each formed by connecting a metal pipe, a frame, a plate, or the like inside, and the outer periphery is formed of a patch cloth (16) or a cushion ( Surrounded by 17).

As shown in FIGS. 1 and 2, the back contact portion (14) has an upper frame (20) and a lower frame (2) at an upper portion and a lower portion, respectively.
The upper and lower frames (20) and (21) are provided with a pair of guide rails (22) and (22) extending in parallel in the vertical direction at both ends. The upper ends of the guide rails (22) and (22) are the upper frame (20)
And is connected by a headrest frame (27) having a headrest (26) at the tip of which the head of the user touches. The lower portions of the guide rails (22) are pivotally supported by a frame forming the seat (13). Further, the lower frame (21) is connected to a known reclining mechanism (24),
Is swingable with respect to the seat (13). The guide rails (22) and (22) have a U-shaped cross section, are arranged so that the grooves face each other, and the massage unit (28) can be moved up and down along the guide rails (22) and (22). Installed. In addition, guide rails are provided on the upper and lower frames (20) and (21).
(22) A screw shaft (30) is pivotally supported in parallel with (22). As shown in FIG. 2, a pulley (31) is fitted to the lower end of the screw shaft (30),
The pulley (3) of the lift motor (32) provided on the lower frame (21)
3) and the belt (34), and the screw shaft (30) rotates forward or backward by driving the elevating motor (32). The screw shaft (30) passes through the upper frame (20), and the screw shaft
An encoder (35) for measuring the rotation speed of (30) is provided.
The encoder (35) is connected to a control circuit described later.

As shown in FIG. 3, the massage unit (28) includes rollers (40) (4) which fit into the grooves of the guide rails (22) and (22).
(0) (40) (40) a pair of side plates (41) (41) pivotally supported vertically, and an upper support rod (43) connecting the upper and lower ends of the side plates (41) (41), respectively. A lower support rod (44) is provided. The lower support rod (44) includes an elevating member (45) provided with a screw hole that meshes with the screw shaft (30), and when the screw shaft (30) is rotated by driving the elevating motor (32). The massage unit (28) moves up and down along the guide rails (22) and (22) by the screw thrust. The movement limit of the massage unit (28) in the elevating direction is, as shown in FIG. 2, one guide rail (22).
Are detected by limit switches (47) and (48) provided above and below, respectively. The limit switch (47) (48), when the massage unit (28) reaches the upper or lower movement limit, hits the upper support rod (43) or the lower support rod (44),
It detects that the rising or lowering of the massage unit (28) has reached the limit and sends it to the control circuit (37).

A gear box (50) is provided substantially at the center of the upper and lower support rods (43) and (44). The gearbox (50) has a kneading shaft (51) that penetrates in the left-right direction and rotates at low speed, and a kneading shaft (5).
A hitting shaft (52) that rotates at a high speed through the gear box (50) in the left-right direction below 1). A massage shaft (53) for driving these two shafts (51) (52) protrudes from the bottom surface of the gear box (50). A pulley (54) is fitted to the lower end of the massage shaft (53), and the pulley (54)
Is the massage motor (55) attached to the lower support rod (44)
The pulley (56) is connected via a belt (57), and the rotation of the massage motor (55) causes the massage shaft (53) to rotate forward or backward. The description of the internal structure of the gearbox (50) is omitted, but its operation is performed by the massage shaft (5).
When 3) is rotated forward, only the massaging shaft (51) is rotated at a low speed in the direction of arrow A in FIG. 3, and the beating shaft (52) does not rotate with the clutch disengaged, while the massage shaft (53) When is rotated in the reverse direction, the kneading shaft (51) does not rotate with the clutch disengaged, and only the hitting shaft (52) rotates at a high speed in the direction of arrow B in FIG. A pulley (54) provided on the massage shaft (53) is provided with an encoder (not shown), and detects the rotation speed of the massage shaft (53). The encoder is electrically connected to a control circuit (37) described later.

The massaging shaft (51) is a shaft located above the gearbox (50), and both ends (51a) of the shaft protruding from the gearbox (50) are bent in the same direction. As shown in FIG. 5, at one end of the kneading shaft (51), on the same side as the bending direction of the end,
A projecting piece (61) having a magnet (60) therein is formed.
Also, on the wall of the gearbox (50), three reed switches (63) (64) are opposed to the rotation transition path of the magnet (60).
A substrate (66) comprising (65) is provided. One reed switch is provided above, behind, and below the kneading shaft.
These reed switches (63), (64), (65) are electrically connected to the control circuit (37). When the upper reed switch (63) detects the magnet (60), the massaging balls (70) (7
0) When the distance between the balls is the longest, and when the lower reed switch (65) detects the magnet (60), the distance between the opposing kneading balls is the closest. Also,
Since the kneading shaft (51) rotates in the direction of arrow A in FIG. 3, when the rear reed switch (64) detects the magnet (60), the kneading balls have shifted from the separated state to the close state, In addition, it means that the interval between the opposing kneading balls is between the approach and the separation.

The hitting shaft (52) is a shaft located below the gearbox (50). Both ends (52a) of the shaft protruding from the gearbox (50) are, as shown in FIG. Each of them is eccentric by the distance H from the axis of (52). The eccentric direction of the end is
They are symmetrical with each other, that is, they are shifted by 180 °.

The treatment fingers (71) and (71) are arranged on the left and right of the gear box (50) as shown in FIGS. Treatment finger (71)
Are a pair of kneading balls (70) attached inwardly to both ends of a plate-like arm (72) whose center is bent in a U shape. The arm (72) is pivotally supported at a bent portion by a plate-like lever (73). The base end of the lever (73) is rotatably supported by the end of the kneading shaft (51). Since the end (51a) of the kneading shaft (51) is bent as described above, the lever (73) is connected to the kneading shaft (51).
When the massaging shaft (51) rotates, the lever (73) swings left and right due to the inclination of the end (51a). A connecting rod (75) is attached to the lower end of the lever (73) via a ball joint (74), and the connecting rod (75) is an eccentric member (76) provided at the end of the hitting shaft (52). ).

Each arm (72) is provided with pins (77) and (78) for restricting the swing angle of the arm (72) with respect to the lever (73) so as to project upward and downward, respectively. The arm (72) is connected to the lower pin
At a position lower than (78), it is connected to the lever (73) by a spring (79). The spring (79) always urges the lower part of the arm (72) in the lever direction. Therefore, with no load,
By the biasing force of the spring (79), the lower pin (78) moves the lever (73).
Is in contact with When the massage is started and the massage ball (70) is pressed against the user, the massage ball (70) swings within the swing range of the lever (73) against the urging force of the spring (79). It is possible to move.

Each operation of the massage machine (10) is performed by a command from an operation unit (not shown). The operation unit includes a lifting button for adjusting the height of the massage unit (28) to `` up, down '', a kneading button for starting a kneading operation, a hitting button for starting a hitting operation, a rolling button for performing a rolling massage, and a kneading ball. Operate the width adjustment button that adjusts the interval between “Wide, Medium, and Narrow”, the speed adjustment button that adjusts the speed of kneading and tapping operations to “Low, Medium, and High”, and the reclining mechanism. It has a reclining button, a stop button for stopping each operation, and the like. The instruction signal input to the operation unit by the user pressing the button is transmitted to the control circuit (37).

A circuit as a control means of the operation of the massage machine (10) will be described. FIG. 6 shows a control circuit (37) mainly composed of a microcomputer. Control circuit (37)
Are deployed in place on the massage machine (10). Microcomputer (8
0) includes a massage motor drive circuit (82) for controlling the driving of the massage motor (55), and a pulley (5) of the massage shaft (53).
Output value of encoder (58) deployed in 4) and kneading shaft (51)
A massage detection circuit (83) that receives output values from the reed switches (63), (64), and (65) for detecting the rotation angle is connected. The massage motor drive circuit (82) includes a PWM circuit (not shown), performs pulse width modulation, adjusts a driving average voltage supplied to the massage motor (55), and controls the rotation speed of the massage motor (55). Can be controlled to any of “low, medium, high”. The massage detection circuit (83) detects whether the massage motor (55) is rotating at a predetermined rotation speed by detecting the encoder pulse, and if the rotation is out of the predetermined rotation speed, the massage motor drive circuit (82) ) To adjust the supply voltage. In the present invention, the massage detection circuit (8
3) and the massage motor drive circuit (82) constitute a speed adjusting means. The massage detection circuit (83) further includes:
It also serves as a position detecting means for receiving output values from the reed switches (63), (64), (65) and judging an interval between opposing massaging balls (70), (70).

The microcomputer (80) includes an elevating motor drive circuit (84) for controlling the driving of the elevating motor (32), an output value of an encoder (35) for detecting the number of revolutions of the screw shaft (30), and massaging. A vertical position detection circuit (8) that receives output values from upper and lower limit switches (47) and (48) that detect the upper and lower limits of the unit (28)
5) is connected. The rotation speed of the screw shaft (30) from the state where the upper limit switch (47) detects the massage unit (28) is calculated as the integrated value of the encoder pulse,
The sum is calculated at (85), and the current position of the massage unit (28) is measured. The current position of the massage unit (28) can be measured with reference to the lower limit switch (48) or the upper and lower limit switches (47) (48).

An operation unit I / F circuit (87) for receiving an operation signal from the operation unit (86) is connected to the microcomputer (80). As described above, the microcomputer (80) has a large number of operation buttons, and command signals from these buttons are transmitted to the microcomputer (80) via the operation unit I / F circuit (87), and various controls are performed. Done.

Further, the control circuit (37) includes a memory having a table for adjusting a kneading ball interval according to the present invention described later.
(90). The control circuit (37) is provided with a reclining control circuit (89) for controlling the reclining mechanism (24) and swinging the backrest (14). In addition,
Since the reclining control circuit (89) is well known, its description is omitted.

[0021] Operation First, an explanation will be given of the basic operation of the massage machine (10). When the power of the massage machine (10) is turned on, the initial position of the massage unit (28) is confirmed. This is because the amount of movement of the massage unit (28) is determined by integrating or subtracting the number of pulses of the encoder (35) provided on the screw shaft (30). In the present invention, the initial position of the massage unit (28) is the upper movement limit position where the massage unit (28) and the upper limit switch (47) are in contact.
Therefore, the massage unit (28) moves upward until it is detected by the upper limit switch (47). When the upper limit switch (47) detects the massage unit (28), the integrated value of the encoder pulse of the screw shaft (30) is reset. From this state, each operation of the massage machine (10) can be performed.

When the user presses one of the up and down buttons, the command signal is sent to the control circuit (37), and the operation unit I / F circuit (87) ) Through the microcomputer (80)
(84) is output as an UP signal or a DOWN signal. Upon receiving the signal, the lifting motor (32) rotates in a predetermined direction.
When the massage unit (28) is performing a descending operation, the number of rotations of the screw shaft (30) by the elevating motor (32) is counted as an integrated value of the encoder pulse, and the massage unit (28) is moved upward. During operation, the number of encoder pulses is subtracted from the integrated value. From the integrated value of the encoder pulse, the current position of the massage unit (28) can be determined. The massage unit (28) is either an upper or lower limit switch.
(47) Until the detection is made in (48), the ascending or descending operation is performed, and it can be stopped at any position.

[Hit operation] When the user presses the hit button, a command signal is sent to the control circuit (37) and the operation unit I / F circuit
The signal is input to the microcomputer (80) via (87), and output as a TAP signal to the massage motor drive circuit (82). Upon receiving the TAP signal, the massage motor drive circuit (82) rotates the massage motor (5) so that the massage shaft (53) rotates in the reverse direction.
5), and only the hitting shaft (52) is rotationally driven in the direction of arrow B in FIG. The eccentric member (76) is pivotally supported eccentrically with respect to the rotation center of the hitting shaft (52), and the base end of the lever (73) is pivotally supported by the non-rotating kneading shaft (51). When (52) is rotated, the kneading balls (70) and (70) make a reciprocating motion in a substantially vertical direction as shown by an arrow D in FIG. 4 to apply a beating massage to the user.

[Kneading operation] When the user presses the kneading button, a command signal is similarly sent to the control circuit (37), and the operation unit I is operated.
The signal is input to the microcomputer (80) via the / F circuit (87) and output as an MSG signal to the massage motor drive circuit (82). Upon receiving the MSG signal, the massage motor drive circuit (82) rotates the massage motor (55) so that the massage shaft (53) rotates forward, and moves only the massage shaft (51) in the direction of arrow A in FIG. Drive in rotation. Lever (73), kneading shaft (51)
Is pivoted at an angle to the center of rotation of the
When the (51) is rotated, the kneading balls (70) perform a reciprocating motion substantially parallel to the left and right directions in which the opposing kneading balls (70) and (70) approach and separate as shown by an arrow C in FIG. The massage is given to the user. At this time, the lower end of the lever (73) is rotatably supported on the eccentric member (76) via the ball joint (74) and the connecting rod (75), so that the tilting movement of the lever (73) is not affected. There is no. When the massaging shaft (51) rotates, the gearbox (5
Reed switches (63), (64), (65) provided in (0) sequentially detect the magnet (60). When each reed switch detects the magnet (60), a detection signal is transmitted to the massage detection circuit (83). When the upper reed switch (63) detects the magnet (60), a signal (WIDE signal) indicating that the interval between the kneading balls (70) and (70) is the widest is transmitted to the massage detection circuit (83). And rear reed switch
When (64) detects the magnet (60), a signal (MIDDLE signal) indicating that the interval between the kneading balls (70) and (70) is intermediate,
When the lower reed switch (65) detects the magnet (60), a signal (NARROW signal) indicating that the interval between the kneading balls (70) and (70) is the narrowest is sequentially detected by the massage detection circuit.
Sent to (83).

[Adjustment of the kneading ball interval] After performing the kneading operation, the beating operation and the rolling operation are successively performed.
Adjustment of the kneading ball interval will be described with reference to a timing chart in FIG. In addition, the kneading ball interval is the above-mentioned "wide,
Medium, narrow ”can be selected. In order to control the kneading ball interval, the massage motor (55) is driven in advance in the kneading direction, and the massage shaft (53) is rotated at various rotational speeds (`` low, medium, high '' in the present invention), The number of encoder pulses per unit time of the massage shaft (53) before the motor is stopped, and the movement amount due to the inertia of the kneading balls when the driving of the massage motor (55) is stopped (in this order, α, β, γ) are determined in advance. Measure. Since the movement amount of the massaging ball due to inertia increases in accordance with the speed, α <β <γ. For reference, in the timing chart of FIG. 7, the portions where the treatment finger is moving by the distances α, β, and γ are indicated by arrows α, β, and γ.
When the rotation speed of the massage shaft (53) is `` low '', the upper, rear or lower reed switch (63) (64) (65) (for example, a switch (64) that emits a MIDDLE signal) is magnet ( 6
0) is detected, and then the next reed switch (for example, NARRO
The encoder from the encoder (58) provided on the pulley (54) of the massage shaft (53) when the kneading ball is moved to the position α before reaching the detection position by the switch (65) that emits the W signal) The number of pulses (A in FIG. 7A) is counted and stored in the memory (90). In addition, instead of counting the number of encoder pulses, after the detection by the reed switch, the time required to move the kneading ball to the position α before the next reed switch is measured and stored in the memory (90). Based on this, the following control of the kneading ball interval can also be performed.
Similarly, when the rotation speed of the massage shaft (53) is "medium, high", the encoder (58) when the next reed switch moves the massaging ball to "β, γ" before the magnet is detected. Are counted and stored in the memory (90) (B and C in FIGS. 7B and 7C).

Before pressing the hitting button and the rolling button, the user presses the width adjusting button in advance and selects one of the "wide, medium and narrow" kneading ball intervals during the hitting operation and the rolling operation. Keep it. The selected kneading ball interval is stored in the memory (90). During the massaging operation, as described above,
The WIDE signal and MIDD as shown in Fig. 7
The LE signal and the NARROW signal are sequentially transmitted from the reed switch.

As a result of measuring the encoder pulse of the encoder (58) of the pulley (54) of the massage shaft (53), the rotation speed of the massage shaft (53) is "low" (step 1), and A case where the beating operation command X (see FIG. 7A) is input (steps 2 and 3) while the massage is being performed while the massage is being set to “narrow” will be described with reference to the flowchart in FIG. First rear reed switch (64)
When the number of encoder pulses A is counted after receiving the MIDDLE signal (step 4), the massage motor drive circuit (82) stops supplying power to the massage motor (55) and stops driving (step 4). Step 6). When the driving of the massage motor (55) is stopped, the massaging balls (70) and (70) move by the distance α due to inertia and stop smoothly. The stop position of the kneading balls is a position where the kneading ball interval is “narrow” (step 7). This makes it possible to set the kneading ball interval to a desired interval set by the user. Massage axis
When the rotation speed of (53) is “medium” or “high”, the reed switch (64) is used similarly to the case where the rotation speed is “low”.
After counting the number of encoder pulses B and C after receiving the MIDDLE signal, the massage motor (55) is stopped. When the massage motor (55) is stopped,
It stops after moving further distances β and γ due to inertia. By this operation, the kneading ball interval becomes “narrow”.

After the kneading ball interval has reached the desired interval of the user, the hitting operation previously input is performed (step 8). The hitting operation is stopped after pressing a stop button of the operation unit or after elapse of a predetermined time by a timer (not shown) (step 9). The same applies to the case where the rolling operation is performed after the kneading operation.

Similarly, when the kneading ball interval is set to "medium" or "wide", after receiving signals from the corresponding reed switches, after counting a predetermined number of different pulses according to the approach / separation speed of the kneading balls. When the massage motor (55) is stopped, the kneading balls move to a desired set interval due to inertia.

Without performing the kneading operation, the interval between the kneading balls (70) and (70) can be changed, that is, only the width adjustment can be performed. In this case, pressing the width adjustment button of the operation unit and selecting any of the massage ball intervals `` wide, medium, narrow '', an MSG signal is transmitted to the massage motor drive circuit (82), and the massage motor (55) is Only the kneading shaft (51) is rotated. The rotation speed of the massage motor (55) may be any of "low, medium, high". The rotation of the kneading shaft (51) changes the interval between the kneading balls (70) and (70), and signals indicating the kneading ball intervals are sequentially detected from the reed switches (63), (64) and (65). Similarly to the above, when the massage ball moves to a position before the massage ball interval selected by the user, the driving of the massage motor (55) is stopped. Thereafter, the massaging balls (70) (70) further move by a predetermined distance due to inertia and stop at desired intervals of the user. In this state,
When the massage unit (28) is moved up and down, a rolling massage can be performed, and when a beating operation is performed, a beating massage can be performed at a massage ball interval desired by the user.

In the above embodiment, the kneading ball interval is "wide, medium,
The stop position of the massage motor (55) is determined by back-calculating the amount of movement due to inertia from the set interval so as to stop in accordance with any of "narrow". However, according to the present invention, the kneading balls can be stopped at the same interval regardless of the approach / separation speed of the kneading balls. In other words, by changing the stop position of the massage motor (55) according to the difference in the amount of movement due to the inertia of the kneading balls depending on the approaching / separating speed of the kneading balls, the kneading balls are stopped at the same interval, hit, and rolling massage is performed. Can be performed, for example, the interval between the kneading balls matches the user selected "wide, medium, narrow", that is, after receiving the signal from the reed switch, the amount of movement due to inertia, The set interval may be a kneading ball interval when the kneading balls are moved by a predetermined amount including the kneading balls.

[Brief description of the drawings]

FIG. 1 is a sectional view of a massage machine.

FIG. 2 is a front view of a back contact portion of the massage machine from which a patch has been removed.

FIG. 3 is a front view of the massage unit.

FIG. 4 is a left sectional view of the massage unit taken along line XX of FIG. 3;

FIG. 5 is a right sectional view of the massage unit taken along line YY in FIG. 3;

FIG. 6 is a block diagram of a control circuit.

FIGS. 7A and 7B are timing charts of the present invention, wherein a indicates the case where the rotation of the massage motor is “low”, b indicates the case where the rotation of the massage motor is “medium”, and c indicates the case where the rotation of the massage motor is “high”. Is shown.

FIG. 8: When the rotation speed of the massage motor is “low”,
It is a flowchart figure which shows the operation | movement which stops a massaging ball in "narrow".

[Explanation of symbols]

 (10) Massage machine (28) Massage unit (32) Elevating motor (37) Control circuit (51) Kneading shaft (55) Massage motor (70) Kneading ball

Continuation of front page (72) Inventor Yasuhiro 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.

Claims (1)

[Claims] 1. A treatment device comprising a pair of treatment fingers provided on a back portion of a chair, a bed, or the like to be contacted by a back of a user, and a contact / separation means for performing massage massage by moving the treatment fingers toward and away from each other. In a massage machine, a speed adjusting means for adjusting and detecting the approach / separation speed of the treatment finger by the contact / separation means, a position detection means for detecting the approach / separation interval of the treatment finger, and an operation of the treatment finger by the speed adjustment means and the position detection means A massaging machine comprising: control means for stopping driving of the contact / separation means at a predetermined distance before the set position in accordance with the state, and stopping the treatment finger at set intervals.