JP2003334225A - Massage machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a massage machine having a simple structure, generating no noise, unnecessary to operate and constituted so that the operation of a treatment element is controlled automatically immediately after the treatment element arrives at a shoulder position corresponding to the physique of a subject. <P>SOLUTION: The massage machine is equipped with a pair of treatment elements 15a and 15b and a drive mechanism A rising and falling up and down by driving a motor. The drive mechanism is provided with a back rest member 21 protruded and retracted above and below the treatment elements and a detector 29 provided in the vicinity of the back rest member, and the back rest member comprises a shaft part 22 and back rest parts 23a and 23b. The shaft part has a dogleg shape and is supported at a bent part 24 to be shaken up and down, the back rest part is attached to the leading end of the shaft part. When the upper and lower back rest parts are equally protruded, the treatment elements protrude over the almost same length and, when the upper back rest part protrudes forwardly from the treatment elements, it comes into contact with the detector provided in the vicinity thereof and the rotation of the motor bearing rise and fall movement is controlled by the detector. <P>COPYRIGHT: (C)2004,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a massager provided with a treatment element which moves up and down a backrest, and more particularly to a massager having a treatment element which is lifted up and shoulders of a patient. The present invention relates to a massage machine that automatically switches to a stop or a descent when a position is reached. 2. Description of the Related Art The following structure is known as a conventional chair-shaped massage machine having a backrest.
That is, in the conventional massage machine, a driving mechanism for performing a massaging operation is stored in the backrest of the chair, and the driving mechanism is provided with a pair of treatment elements, and by driving a motor arranged in the driving mechanism. , The treatment element swings,
Perform a massage operation such as a kneading operation and a beating operation. Further, in order to perform a massage operation at a desired position on a patient sitting on a chair, a backrest portion of the chair is provided with an elevating mechanism for elevating and lowering a driving mechanism. The drive mechanism is configured to move up and down along the rack, and a limit switch is installed above and below the rack. When the drive mechanism contacts the limit switch, the motor that moves the drive mechanism up and down is reversed. Is configured. [0003] However, since the physicians using the massage machine have different physiques, the up-and-down movement of the drive mechanism in the above-mentioned conventional massage machine requires a small patient. For the user, the treatment child turns back far beyond the shoulder position, and conversely, for a large-sized patient, the treatment child turns back and descends before reaching the shoulder position. Such a problem occurs. [0004] Further, there is a device provided with a control device which converts the elevating distance of the treatment element into the rotation speed of the motor and automatically reverses the rotation speed when the rotation speed of the motor reaches a certain numerical value. The operation is performed by the patient, and the structure of the massage machine is complicated, resulting in high costs. Further, there is a treatment element provided with a sensor, but the structure is complicated, the number of parts is increased, and noise may be generated. Therefore, the present invention has a simple structure, does not generate noise, does not require any operation, and after the treatment element reaches the shoulder position according to the physique of the patient, the position is changed. An object of the present invention is to provide a massage machine configured to detect and control a subsequent ascent / descent operation. [0007] A massage machine according to the present invention is a massage machine having a pair of treatment elements and a drive mechanism that moves up and down by driving a motor. The mechanism includes a back support member that protrudes and retracts above and below the treatment element, and a detector provided near the back support member, wherein the back support member includes a shaft portion and a back support portion, The shaft part is a U-shape, and the bent part is pivotally supported,
The back support portion is configured to swing up and down, and the back support portion is attached to a tip of a shaft portion, and when the upper and lower back support portions evenly protrude, the back support portion protrudes to substantially the same length as the treatment element, and When the portion protrudes forward from the treatment element, the back support member comes into contact with a detector provided in the vicinity thereof, and the rotation of the motor responsible for vertical movement is controlled by the detector. It is assumed that. [0008] With the above construction, the back support rises as the treatment element rises, and the back support protrudes forward beyond the shoulder position of the patient and the back support member. Makes contact with the detector, controls the rotation of the motor responsible for vertical movement by the detector, and controls the subsequent vertical movement based on the detected shoulder position. Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a perspective view of a main part showing a structure of a main part of a driving mechanism of the massage machine, and FIG. 2 is a longitudinal sectional view of the massage machine showing a state where the driving mechanism moves up and down along a rack. 3 is a schematic side view showing a state where the drive mechanism has reached a lower limit, FIG. 4 is a schematic side view showing the drive mechanism, and FIG. 5 is a schematic side view showing a state where the drive mechanism has reached an upper limit. In FIG. 1, the driving mechanism A of the massage machine is shown.
Are the first rotation shaft 1, the second rotation shaft 2, and the third rotation shaft 3
Motors 4, 5, and 6 are connected to these shafts, respectively.
Three first rotating shafts 1, second rotating shafts 2, and third rotating shafts 3
Are configured to rotate at predetermined rotation speeds. The first rotary shaft 1 is provided with a pair of two symmetrical swash plate cams 7a and 7b. The rotation of the first rotary shaft 1 causes the swash plate cams 7a and 7b to be symmetrical. It is configured to swing. And the swash plate cam 7
Arms 8a and 8b are attached to a and 7b, respectively, and the treatment elements 15a and 15b are attached to the ends, which are one ends of the arms 8a and 8b, respectively, to perform a massage operation. Have been. The second rotary shaft 2 is constituted by an eccentric shaft, and has cams 9a and 9b mounted thereon. The cams 9a and 9b are provided at the ends of the swash plate cams 7a and 7b where the arms 8a and 8b are mounted. Is different from the other end and the connecting rod 16a,
16b. Therefore, the swash plate cam 7
The end of the arm a, 7b on the side opposite to the mounting portion of the arm 8a, 8b is configured to be pushed by the rotation of the second rotating shaft 2. In such a configuration, the drive mechanism A of the massage machine is configured such that the swash plate cam 7
The arms 8a and 8b perform an elliptical motion via the a and 7b, and the treatment elements 15a and 15b perform a symmetrical kneading operation by the elliptical motion. When the second rotating shaft 2 rotates, the cams 9a and 9b
Since the ends of the swash plate cams 7a and 7b, which are the other ends of the arms 8a and 8b, are pushed through the a and 16b, the swash plate cams 7a and 7b rotate one end of the arms 8a and 8b by the first rotation. It swings in a direction perpendicular to the axis, and the treatment elements 15a and 15b perform a beating operation. The third rotating shaft 3 has pinions 13a and 13b attached to both ends thereof, and as shown in FIG. 2, is configured to be able to move up and down along a rack 18 provided in the massage machine. ing. That is, the driving mechanism A of the massage machine is configured such that the third rotating shaft 3 is rotated by the motor 6 and the pinion 13 attached to the third rotating shaft 3 is rotated.
The drive mechanism A can move up and down along the rack 18 because the a and 13b mesh with the rack 18. The rack 18 is attached to the backrest 19 of the chair, and the treatment elements 15a and 15b of the driving mechanism A massage the back of the person leaning on the chair.
Further, the upper portion of the rack 18 is slightly bent so as to be adapted to the back of the person, such as a neck or a shoulder, and the lower portion of the rack 18 is configured to bend and perform a reclining operation. The control of the elevation movement of the drive mechanism A will be described below. The drive mechanism A is controlled so as not to go down too much and not to go up too much in the reciprocating movement of descending and ascending along the rack 18. That is, in order to prevent the massage machine from being damaged by the vertical movement of the driving mechanism A, and to prevent the treatment elements 15a and 15b attached to the driving mechanism A from being unnecessarily raised and lowered with respect to the patient. Is controlled. In controlling the vertical movement of the drive mechanism A, in the present embodiment, the treatment elements 15a and 15b reciprocate at appropriate positions regardless of the size of the patient. ing. The lower limit for the treatment elements 15a and 15b to fall is set such that the treatment elements 15a and 15b reach the hips of the patient and return to ascend. in this case,
By taking advantage of the fact that the position of the patient's waist hardly changes when the patient is seated on the massage machine, regardless of the size of the patient, as shown in FIG. The limit switch 31 is installed in the treatment element 15a,
The height at which the limit switch is installed is adjusted in consideration of the position of the drive mechanism A and the position of the limit switch. As shown in FIG. 3, when the drive mechanism A comes into contact with the limit switch 31, a detection signal is transmitted from the limit switch 31 to the motor 6 responsible for moving the drive mechanism A up and down. The rotation of No. 6 is reversed, and the drive mechanism A starts to rise. Next, regarding the upper limit of the treatment elements 15a and 15b ascending, the drive mechanism A is provided with the following structure. With this structure, when the treatment elements 15a and 15b reach the upper limit, they return. To descend.
As shown in FIG. 4, the configuration includes a back support member 21 that protrudes and retracts with respect to a patient and a vicinity of the back support member 21, that is, a lower shaft portion 22b described below, above and below the treatment elements 15a and 15b. And a detector 29 provided immediately below. The back support member 2
1 is a shaft portion 22 composed of an upper shaft portion 22a and a lower shaft portion 22b.
And back support portions 23a and 23b. The shaft portion 22 has a V-shape bent at the center, and has a bent portion 24.
Is rotatably supported by a shaft bar 25 and swings up and down. The back support portions 23a, 23b
The upper shaft portion 22a and the lower shaft portion 22 which are divided into
b, and is attached to each end of
a and 23b project evenly when the treatment element 15
a, 15b, projecting to the same length as the upper back support 2
When 3a protrudes forward from the treatment elements 15a and 15b, the lower back portion 23b is sunk rearward, so that the lower shaft portion 22b to which the lower back portion 23b is attached comes into contact with the detector 29. Then, the detector 29 controls the rotation of the motor 6 responsible for the vertical movement, and controls the subsequent vertical movement based on the detected shoulder position. Therefore, when the treatment elements 15a and 15b are in the process of ascending, and the treatment elements 15a and 15b are below the shoulder position of the patient, the treatment elements 15a and 15b and the upper and lower back support portions 23a and 23b Is in contact with the patient.
Then, as shown in FIG. 5, when the treatment elements 15a and 15b approach the shoulder position of the patient, the upper back support portion 23a
Reaches the recess around the neck of the patient and protrudes forward,
Conversely, the back of the patient presses the lower back portion 23b, and accordingly, the lower shaft portion 22b retreats and the detector 29
Contact with. Then, a detection signal is transmitted from the detector 29 to the motor 6 which is responsible for ascending / descending movement, and the motor 6 is controlled by this detection signal, so that the drive mechanism A ascends to a certain position or stops there, The operation shifts to an operation of reversing the rotation of the motor and descending. As described above, the massage machine according to the present embodiment has a simple structure in which the back support member 21 and the detector 29 are provided, so that the rising treatment element is located at the shoulder position regardless of the physical size of the patient. After reaching the position, the position is detected, and the subsequent ascent / descent operation is controlled. In addition, there is no element that generates noise, and the massage can be quietly received. In this embodiment, the above-described drive mechanism A is employed. However, the present invention is not limited to this. If the drive mechanism has a structure capable of moving up and down, the object of the present invention is achieved. You. The present invention is not limited to the above embodiments, but includes a wide variety of modifications without departing from the spirit of the present invention. The massage machine according to the present invention does not require operation by a patient due to its characteristic configuration, has no simple structure, does not generate noise, and has a physique of the patient. Irrespective of the treatment, the operation of the treatment element is controlled to rise, stop or descend to a certain position immediately after the rising treatment element reaches the shoulder position. It is possible to provide an inexpensive massage machine that achieves a massage effect according to the physique of even a person.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of a massage machine according to the present invention,
It is a principal part perspective view which shows the structure of the principal part of the drive mechanism of a massage machine. FIG. 2 shows an embodiment of a massage machine according to the present invention,
It is a longitudinal cross-sectional view of the massage machine which shows the state which a drive mechanism raises / lowers along a rack. FIG. 3 is a schematic side view showing a state where the drive mechanism has reached a lower limit. FIG. 4 is a schematic side view of a driving mechanism. FIG. 5 is a schematic side view showing a state where the drive mechanism has reached an upper limit. [Description of References] A: Driving mechanism 1: First rotating shaft 2: Second rotating shaft 3: Third rotating shafts 4, 5, 6 ... Motors 7a, 7b ... Swash plate cams 8a and 8b Arms 9a and 9b Cams 13a and 13b Pinions 15a and 15b Treatment elements 16a and 16b Connecting rod 18 Rack 19 Backrest Part 21: Back support member 22: Shaft part (22a, upper shaft part, 22b, lower shaft part) 23a, 23b Back support part 24, bent part 25, rod shaft 29: detector 31: position detector

   ────────────────────────────────────────────────── ─── Continuation of front page    F-term (reference) 4C100 AD22 AF02 AF07 AF12 AF14                       BA01 BA07 BB03 CA06 DA05                       DA06 EA13

Claims (1)

Claims: 1. A massage machine comprising a pair of treatment elements and a drive mechanism that moves up and down by driving a motor, wherein the drive mechanism includes a vertical movement of the treatment element. And a detector provided in the vicinity of the back receiving member is provided, wherein the back receiving member includes a shaft portion and a back receiving portion, and the shaft portion has a U shape. The bent portion is pivotally supported and is configured to swing up and down. The back support portion is attached to a tip of a shaft portion, and has substantially the same length as the treatment element when the upper and lower back support portions project evenly. When the upper back support portion protrudes forward from the treatment element, the back support member comes into contact with a detector provided in the vicinity thereof, and the detector controls the rotation of the motor responsible for vertical movement. A massage machine characterized in that it is configured to do so.