TW449472B - Massage unit and chair type massager with the unit - Google Patents

Abstract

To pinch and massage the shoulders from the back and the chest, the massage unit is made up of a first link 41 having a projection 45 butting the back side of the shoulder 71 of treated person 7 on the downward tip side, a second link 42 having a projection 46 butting the breast side of the shoulder 71 of the treated person 7 on the downward tip side, and a third and a fourth links 43 and 44 pivoting the base end side from the projections 45 and 46 of the first and second links, and is equipped with a four-articulation link 4 in which the length L1 of pivots 43a and 44a of the third and fourth links 43 and 44 on the first link 41 is larger than the length L2 between the pivots 43b and 44b on the second link 42, a driving means 3 connected to the four-articulation link 4, and applying a force to push the entire four-articulation link 4 in the direction of pushing the shoulder 71 of the treated person 7 and in the direction opposite thereto around the projection 45 of the first link 41.

Description

449472

[Technical field to which the invention belongs] The present invention relates to a massage unit capable of being clamped by a test subject's back and chest for massaging, and a seat provided with the unit. Question] In the conventional massage unit, the object that directly drives the driving force of the motor 'has a certain orbit of massaging action, and when its safety =% of the back of the chair, the massaging action has a sense of pressure and will reduce it. With shoulder comfort. β The present invention provides a massage unit capable of solving the aforementioned problems, and a seat type massage machine having the same. [Means for solving the problem] The massage unit according to the present invention includes a four-stage link 4 and a first connection provided with a protruding portion 45 in contact with the back of the shoulder 71 of the subject 7 at the lower front end. The rod 41 and the second link 42 ′ provided at the front end with a protrusion 46 contacting the chest side of the shoulder of the test subject 7. The reference end is passed through each of the protrusions 45 and 46 on the first and second links. The third and fourth connecting rods 43 and 44 are pole-connected, and the length L1 between the rotating shafts 43a and 44a of the third and fourth connecting rods 43 and 44 on the first connecting rod 41 is longer than that of the second connecting rods 43a and 44a. The length L2 between the rotating shafts 4 3b ′ 44b on the connecting rod 42 is larger; and the driving device 3 connects the protruding portion 45 of the first connecting rod 41 of the aforementioned four-stage connecting rod 4 in the center to connect the four-stage connecting The entire rod applies a force upward in the direction in which the shoulder 71 of the test subject 7 is pushed and the opposite thereof. The seat type massage machine according to the present invention is arranged at the upper part of the seat back Π

4 ^ 9472 V. Description of the invention (2) — Massage machine with the aforementioned massage unit. [Function and effect] When the back of the shoulder 71 of the test subject 7 pushes the protrusion 45 of the first link 41, the '4 section link 4 will be deformed' and the position of the shoulder 71 will be stable. The position of 4 5 is also determined almost simultaneously. By the driving device 3, the 4-link 4 receives force in the direction of pressing the shoulder 71 of the subject, and the 4-link 4 moves to the chest side of the shoulder with the protrusion 45 as the center. The distance L4 on the first link 41 from the protrusion 46 to the pivot 43b of the third link 43 is longer than on the second link 42 from the protrusion 45 to the pivot 43a of the third link 43 The distance L3 is large, and the length f L1 between the frame axes 43 a and 44 a is also longer than the length between the pivot 43 b of the third link 43 and the pivot 44 b of the fourth link 44. Since L2 is large, when the four-link link 4 is moved to the chest side, the front end of the second link 42 moves toward the front end of the first link 41 while being deformed while being deformed. Thereby, the shoulder 71 is massaged by the protruding portion 45 of the first link 41 and the protruding portion 46 of the second link 42. When the driving device 3 pulls the four-section link 4 away from the shoulder 71 as opposed to the foregoing, will the four-section link 4 touch the shoulder? The protrusion 45 of the center returns to the initial state of being pressed by the shoulder. The second link 42 is disengaged from the first link 41, and the protrusion 45 and the protrusion 46 open and hold the shoulder. In the operation of the driving device 3, the clamping and opening sessions generated by the protruding portion 45 of the second link 41 and the protruding portion 46 of the second link 42 are alternately performed, thereby becoming a clamping massage operation.

Page 5 449 47 2 V. Description of the invention (3) The position of the protrusion 45 of the first link 41 which is the starting position of the holding action, according to the test subject for the aforementioned protrusion 45? It is determined by the pressing force of the shoulder Η. It is not the force that massages the force of the driving device 3, but the deformation of the four-section link 4 to produce a change. According to the posture of the test subject, can it be achieved that the test subject is the projection 45 of the first link 41? Massage action produced by the pressing force of shoulder rhyme. In comparison with the conventional massage movement, which has a certain track, the comfort of the shoulders of the protrusions 45 and 46 is also better. In addition, if the four-section link 4 releases the pressing force on the protruding portion “the same as the upper portion 71 of the first link 41, since the four-section link 4 = to the protruding portion 45, the subject moves forward = = As a result, the stalk 42 will move freely upward to open the subject 7. When the massager 2 leaves the conference room, the existence of the second link 42 will not cause any obstacles. [Embodiment of the invention] An illustration of a seat massage machine 1 with a massage sheet 7L on the upper part of the seat back 11 of the seat Λ10 and the seat back 11. The center of the latitude direction is provided with a lift of left and right massage balls. Known massage, mallet unit 13. ☆ Mount the shaft 14 with the seat back or slightly protruding from the back of the seat, as shown in Figure 5, with the mounting base 14 of the massage unit 2 in the fitted position of the shaft 14. The center of the adjustable base 21 is provided with a pillow 6 facing forward, and a rear portion thereof is provided.

V. Description of the invention ⑷ There is a gear box 2 2. As shown in FIG. 6, the gear box 22 houses a worm gear 35 and a gear 33 that meshes with the worm gear 35. Eccentric rotating vehicles 34 are provided at eccentric positions on both sides of the gear 33. The eccentric rotating shaft 34 passes through the gear box 22 to two directions. The side is highlighted horizontally. The components mounted on the eccentric rotation shaft 34 are relatively (left-right symmetrical) the components mounted on the left and right eccentric rotation shafts 3 4 and 34. The upper limit is only described for a single aspect of the eccentric rotation shaft. As shown in FIG. 5 and FIG. 7, the bottom end shaft of the upper link 35 is presented on the eccentric rotation shaft 34. The front end of the lower side of the lower link 35 is in a plane parallel to the rotation surface of the link 35. The four-section link 4 is attached deformably. The four-section link 4 is a first link 41 provided with a protrusion 45 in contact with the back of the shoulder 71 of the subject 7 at the front end downward, and a chest side provided with the shoulder of the subject 7 at the front end. The second link 42 of the protruding portion 46 that is in contact with each other, and the third and fourth links 4 and 44 that pivotally connect the reference end through each of the protruding portions 45 and 46 on the first and second links. The third link 43 positioned lower than the fourth link 44 is integrally formed to protrude at a right angle from the downward front end of the link arm 35 to the front. The length L1 between the frames Korea 43a, 44a of the third and fourth links 43, 44 on the first link 41 is larger than the length L2 between the pivots 4 3b, 44b on the second link 42:. _The length L 4 from the pivot 43b bearing the second link 42 and the third link 43 to the protrusion 46 of the second link 42 is longer than the length L 4 between the third link 43 and the first 7063-345. 4i-fF-ptd Page 7 449 47 2 V. Description of the invention The length L3 up to the pivot 43a of the connecting rod 41 plus the bearing to the protruding portion 45 of the first connecting rod 41 is large. The second sense of continuity 42 is such that the protruding portion 46 of the second link 42 is pressed by a spring in a direction away from the protruding portion 45 of the first link. As shown in FIG. 4, the protrusion 45 of the first link 41 is formed using a thumb of a human finger as a model, and the protrusion 46 of the second link 42 is formed using a finger other than the thumb as a model compared to the first link. The protruding portion 45 of 41 is formed wider and longer, and the protruding portion 45 which is modeled with the thumb is positioned more inward than the protruding portion 46 which is modeled with other fingers. That is, the protrusion 45, which is modeled with the thumb, is located closer to the neck of the subject than the protrusion 46, which is modeled with other fingers. As shown in FIG. 7, the link arm 35 is connected to the front of the four-link link 4 that is inclined by the eccentric rotation of the eccentric rotation shaft while maintaining the lower end of the link arm 35 to be inclined forward. A restriction member 5 that restricts the inclination of the linkage arm caused by the downward push and the backward and upward traction action. The restricting member 5 in the embodiment is a connecting plate 51. The connecting plate 51 is supported by a supporting plate 23 provided downward from the gear box 22, and the bottom end is bearing. Slightly central. The interlocking arm 35, the motor 31, the pot wheel 32, the gear 33, and the eccentric rotation shaft 34 connecting the interlinking arm 35 and the motor 31 constitute a driving device 3 for gripping and massaging operations described later. As shown in Fig. 7, "in a no-load state, the front end of the first link 41 is downward" and the front end of the second link 41 is slightly forward. Then, after the subject sat down on the chair,

7063-3454-? F-ptd Page 8 449472 V. Description of the invention (6) The end will push the protrusion 45 of the first link to deform the four-section link 4. The subject's lying down position is restricted by the back of the chair, and the position of the shoulder 71 is almost stable while the position of the protrusion 45 is almost determined. By the eccentric rotation shaft 34 of the driving device 3, the interlocking arm 35 repeatedly presses the entire four-section link 4 obliquely forward and downward, which is the opposite operation to that described above. When the four-section link 4 receives a force in the direction of pressing the shoulder 71, the four-section link 4 moves toward the chest side of the shoulder with the protrusion 45 at the almost determined position as the center. The distance L3 on the first link 41 from the protrusion 45 to the pivot 43a of the third link 43 is longer than on the second link 42 and from the protrusion 45 to the pivot 43b of the third link 43 The distance L4 is large, and the length L1 between the polar axes 43 a and 44 a is also longer than the length L 2 between the pivot 43 b of the third link 43 on the second link 42 and the pivot 44 b of the fourth link 44. Because it is large *, when the four-section link 4 is moved to the chest side, the front end of the second link 42 moves toward the front end of the first link 41 while being deformed while being deformed. Thereby, the shoulder 71 is massaged by the protruding portion 45 of the first link 41 and the protruding portion 46 of the second link 42 (see the change from the dotted line to the solid line in FIG. 8). The rotational movement amount of the protruding portion 46 of the second link 42 is (L1 / L2) X (L4 / L3) > ((rotational movement amount of the interposed shaft of the first link and the third link). When the driving device 3 is opposite to the foregoing, when the four-section link 4 is pulled away from the shoulder 71 1, the four-section link 4 returns to the center of the protrusion 4 5 that touches the shoulder 7 and is pushed to the shoulder. In the initial state (the state indicated by the dotted line in FIG. 8), the tip of the second link 42 is separated from the first link 41, and the shoulder 71 is opened by the protrusion 45 and the protrusion 46.

7063-3454'-PF ptd page 9 449472

drive. The motion t 'of the dead body is performed through the protrusions 45 of the first link 41 and the protrusions 46 of the second link 42. The shoulder holding and opening meeting are performed alternately to form a clamping massage action. . As described above, in the embodiment, the protruding portion 45 of the first link 41 is formed by using a thumb of a human finger as a model, and the protruding portion 46 of the second link 42 is formed by using a finger other than the thumb as a model} The protrusion 45 of the connecting rod 41 is formed wider and longer. Since the protrusion 45 based on the thumb is located closer to the neck of the subject than the protrusion 46 based on other fingers, the subject 7 You can feel as if you are pressed by someone's hands behind you. s In the massage unit of the present invention, the position of the protrusion 45 of the first link 41 which is the starting position of the clamping action is determined according to the pressing force on the shoulder 71 of the test subject 7 of the protrusion, and, Rather than directly transforming the force of the driving device 3 into the force of massaging, but the deformation of the four-section connecting rod 4 causes transformation, the way of massaging action may not necessarily be based on the posture of the test subject, or The massaging action on the shoulder 71 of the test subject 7 of the protruding shirt of the first link 4 i. In addition, compared with the conventional objects in which the track of the massage action is constant, the shoulders of the protrusions 45 and 46 are more comfortable. ° In addition, if the four-section link 4 releases the pressing of the shoulder 71 on the protrusion ^ of the first link 41, 'the four-section link 4 itself will deform freely': Therefore, the protrusion 45 When the tester 7 moves forward, the second link 42 of the moon end A will move freely upward to open the test subject 7. Therefore, when the test subject leaves the massage unit 2, the existence of the second link 42 exists.

4 49 47 2 V. Description of the invention (8) Will not cause obstacles. The present invention is not limited to the structure of the foregoing embodiment. For example, the massage unit 2 is not limited to providing clamping mechanisms on the left and right to hold the pillows, but only one of them may be implemented. [Brief description of the drawings] FIG. 1 is a perspective view of a seat type massage machine according to the present invention. Fig. 2 is a perspective view of a seat massage machine according to the present invention in use. FIG. 3 is a perspective view of an important part in a use state. Fig. 4 is a perspective view of the massage mechanism arranged symmetrically left and right. Fig. 5 is a perspective view of the massage unit viewed obliquely from the rear. FIG. 6 is an explanatory diagram illustrating a relationship between a gear box and a gear. Fig. 7 is a side view of the massage unit. Fig. 8 is an explanatory view of the massage action. [Symbol description] 1 ... seat massage machine 11 ... back 2 ... massage unit 3 ... driving device 31 •• motor 34 •• eccentric rotation pumping 35 “linking arm 4 ·. 4 .section link 41… the first link

? 0fc3-3454,-? F-ptd Page 11 449 4 l 2 V. Description of the invention (9) 42 ... 2nd link 43 ... 3rd link 44 ... 4th link 5 ... restricting member 6 ... pillow 111111 7D63-3454-PF Did page 12

Claims (1)

449472 6. Scope of patent application 1-A massage unit, including: 4 segments & connecting rod (4) 'is provided with a protrusion (45) at the front end which is in contact with the back of the subject (7) shoulder (71) A first link (41), a second link (42) provided with a protrusion (4 6) in contact with the chest side of the shoulder of the fork tester (7) at the front end, and passing through the first and second links Each of the protrusions (45, 46) on the upper side is pivotally connected to the third and fourth links (43, 44), and the third and fourth links (43, 44) are connected in the first connection. The length u between the rotating shafts (43a, 44a) on the lever (41) is larger than the length L2 between the rotating shafts (43b, 44b) on the second link (42); and the driving mechanism ( 3) 'Push the projection (4 5) of the first link (41) connected to the aforementioned four-stage link (4) in the center and push the entire four-stage link toward the test subject (the shoulder (71) of Ό The force is applied in the direction of pressure and its opposite direction. 2. The massage unit according to item 1 of the scope of patent application, wherein the driving device (3) is linked by pivotally connecting one end with the first link (41). The other end of the arm (3 5) The eccentric rotation shaft (34) rotated by the motor (3 丨) is connected, and a restriction device (5) for restricting the inclination range of the linkage lever is connected to the linkage arm (35). The massage unit according to item 2, wherein the link arm (35) and the third link (43) are integrally formed. 4. The massage unit according to item 1 of the patent application scope, wherein the second link (42) The spring (47) pushes the protruding portion (46) of the second link (42) away from the protruding portion (45) of the first link (41). The massage unit according to item 丨, which has a left-right symmetry with a pillow (6) supporting the head (7 2) of the subject (7) as a center. 7063-3454rPFpt (j page 13 4 49472) The four-section link (4, 4) in the scope of the patent application can massage both shoulders of the subject at the same time. 6. A seat-type massage machine for the back of the chair ( 11) The upper part is equipped with a massage unit described in the scope of patent application No. 1, 2, 3, 4 or 5. 7063-3454-? Fptd Page 14