JP2010125218A - Solenoid mechanism for automatic vibration applying health apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solenoid mechanism for an automatic vibration applying health apparatus capable of preventing decrease in function or malfunction of a solenoid by reducing load acting on a plunger and the inserting part of the plunger. <P>SOLUTION: A part of an attaching plate 26 to which the solenoid 22 is attached functions as a guide part 37 for guiding a moving direction of the plunger 32 of the solenoid 22. A slit 68 extending in a direction parallel to the moving direction of the plunger 32 is formed in the guide part 37. Further, a regulating member 71 that is a screw is connected to the distal end part of the plunger 32 and the regulating member 71 is inserted in the slit 68 of the guide part 37. The regulating member 71 connected to the plunger 32 reciprocates along the slit 68 when the plunger 32 reciprocates. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a solenoid mechanism for an automatic vibration health device for pulling in an outer peripheral edge portion of a sheet of an automatic vibration health device to vibrate the sheet.

  Conventionally, a so-called trampoline (registered trademark) is known, which is a health device in which a seat is oscillated and stretched through a plurality of traction springs inside a main frame formed in an annular or polygonal shape. By using this trampoline, various exercises different from the exercises on the ground can be performed safely, and the effects of improving physical abilities such as balance and enhancing the mood can be obtained. Therefore, trampolines are widely used by people of various ages.

  Particularly recently, trampolines have been used as health devices or rehabilitation devices for bedridden persons who cannot move their bodies freely due to the effects of aging or illness. By shaking the trampoline on which the bedridden is placed, the caregiver can bring many benefits to the bedridden, such as raising mood, promoting blood circulation, reducing blood sugar levels, and improving balance. However, the caregiver had to keep attending the bedside and always shaking the seat, so the burden on the caregiver was great. In view of this, an automatic vibration health device has been proposed in which the outer peripheral edge of the seat is pulled in by a solenoid so that the central portion of the seat is automatically vibrated in the vertical direction.

Here, the plunger of the solenoid used for drawing the sheet reciprocates in the cylindrical insertion portion. Therefore, when the solenoid is repeatedly used, the plunger and the insertion portion are worn, and there is a possibility that the function is deteriorated or a failure is caused. Therefore, a solenoid that rotates the plunger each time a reciprocating operation is performed by providing a pin on the plunger has been proposed (for example, see Patent Document 1). This solenoid rotates the plunger to prevent wear of a specific position of the plunger and the insertion portion, thereby extending the life.
JP 2004-111576 A

  However, since the solenoid plunger used in the automatic vibration health appliance is connected to the outer peripheral edge of the sheet that vibrates vigorously, there is a problem that the load on the plunger and the insertion portion is larger than that used in other applications. there were. Therefore, wear could not be sufficiently prevented only by rotating the plunger.

  SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and reduces the load applied to the plunger and the insertion portion of the plunger to prevent the solenoid from degrading or malfunctioning. The purpose is to provide.

  In order to achieve the above object, a solenoid mechanism for an automatic vibration health appliance according to claim 1 of the present invention includes a rod-shaped plunger made of a magnetic material and a reciprocating movement of the plunger along the axial direction of the plunger. A seat having a solenoid that includes an insertion portion that can be inserted and a coil that surrounds the plunger that is inserted into the insertion portion in a cylindrical shape, and is configured to vibrate freely through a traction spring inside the main frame A solenoid mechanism for an automatic vibration health appliance for connecting the plunger to an outer peripheral edge and pulling the outer peripheral edge of the seat toward the outside of the main frame, the direction being parallel to the moving direction of the plunger A guide part having a slit or groove extending in the direction of the plunger and extending from the plunger and slidably inserted into the slit or groove, thereby restricting the movement direction of the plunger. And a that regulation member.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect of the invention, the guide member may be configured so that the guide member moves away from the insertion portion. The stopper which regulates the movement distance is provided.

  According to a third aspect of the present invention, in addition to the configuration of the first or second aspect of the invention, the solenoid mechanism for a health appliance for automatic vibration according to the present invention is a spring between the outer peripheral edge of the seat and the plunger. It is characterized by interposing.

  The solenoid mechanism for an automatic vibration health appliance includes a solenoid having a rod-shaped plunger made of a magnetic material and an insertion portion for inserting the plunger so as to be reciprocally movable along the axial direction of the plunger. Automatic vibration health for connecting the plunger to the outer peripheral edge of a sheet that is oscillated through a traction spring on the inner side of the sheet, and pulling the outer peripheral edge of the sheet toward the outside of the main frame An appliance solenoid mechanism, wherein the plunger extends in the axial direction and passes through a wall portion of the solenoid, and a push bar interposed between a tip portion of the push bar and the wall portion of the solenoid. A spring, and a movement restricting portion that is provided on the push bar and abuts against the wall portion when the plunger moves in a direction to escape from the insertion portion. It may be.

  According to this solenoid mechanism, the plunger can be urged in the direction of insertion into the insertion portion when the push spring pushes the push bar. When the plunger moves in the direction to escape from the insertion portion, the movement restricting portion provided on the push bar comes into contact with the wall portion of the solenoid, so that the movement distance of the plunger can be appropriately restricted by the movement restricting portion. Furthermore, since the plunger can rotate about the axial direction as a rotation center, the rope does not twist even if a rope or the like is connected to the plunger. Accordingly, it is possible to prevent malfunction of the solenoid mechanism, wear of the members, and the like.

  The solenoid mechanism for an automatic vibration health device according to claim 1 of the present invention includes a guide portion having a slit or a groove extending in a direction parallel to the moving direction of the plunger. A regulating member extending from the plunger and moving together with the plunger is slidably inserted into a slit or groove provided in the guide portion. Thereby, the reciprocating movement of the plunger can be guided by the guide portion. Therefore, the vibration transmitted from the seat to the plunger can be dispersed in the guide portion, and the load on the plunger and the insertion portion of the plunger is reduced while smoothly reciprocating the plunger, thereby preventing the solenoid from degrading or malfunctioning. be able to.

  Further, in the solenoid mechanism for an automatic vibration health device according to claim 2 of the present invention, the guide portion is provided with a stopper for restricting the movement of the restricting member in the direction away from the insertion portion. Therefore, in addition to the effect of the first aspect of the invention, the movement distance of the plunger connected to the regulating member can be appropriately regulated. Therefore, the load applied to the plunger and the insertion portion of the plunger can be further reduced, and the plunger can be prevented from coming off from the insertion portion.

  According to a third aspect of the solenoid mechanism for an automatic vibration health device according to the present invention, a spring is interposed between the outer peripheral edge of the seat and the plunger. Therefore, in addition to the effect of the invention described in claim 1 or 2, the impact transmitted from the seat to the plunger can be absorbed by the spring, and the load applied to the plunger and the insertion portion of the plunger can be further reduced. Further, since the spring can absorb the impact transmitted to the seat when the drive of the solenoid is started, the seat can be vibrated smoothly without transmitting the impact to the user.

  Hereinafter, an automatic vibration health device 1 having a solenoid mechanism 21 according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of an automatic vibration health device 1. FIG. 2 is a perspective view of the solenoid mechanism 21. FIG. 3 is a partial cross-sectional view of the solenoid 22. FIG. 4 is a bottom view of the mounting plate 26 provided with the guide portion 37. FIG. 5 is a side view of the solenoid mechanism 21. In FIG. 1, the lower left side is “front side of automatic vibration health device 1”, the upper right side is “back side of automatic vibration health device 1”, the lower right side is “right side”, and the upper left side is “left side”. And

  First, the configuration of the automatic vibration health device 1 will be schematically described. As shown in FIG. 1, the automatic vibration health device 1 mainly includes a main body 2 and a control unit 60. The upper surface of the main body 2 in use is covered with a cover (not shown) formed of an elastic sponge agent or the like in order to prevent parts from being damaged or injured. Moreover, the main body 2 includes a vibration device 20 for vibrating the seat 7, and the operation of the vibration device 20 is controlled by a control unit 60 including a microcomputer (not shown).

  Next, the main body 2 will be described. As shown in FIG. 1, the main body 2 has a rectangular support frame 5 in contact with the floor surface, a main frame 4 having substantially the same shape as the support frame 5, and the main frame 4 from the support frame 5 to a predetermined shape. And a plurality of pillars 10 supported at a height. A plurality of rings 6 are fixed inside the main frame 4. A rectangular sheet 7 smaller than the main frame 4 is disposed so as to cover the space surrounded by the main frame 4, and a plurality of holes 8 are formed in the outer peripheral edge of the sheet 7. Yes. And the one end part of the traction spring 9 is fixed to the ring 6, and the other end part is fixed to the hole 8 of the sheet 7, so that the sheet 7 is stretched so as to freely vibrate in the vertical direction.

  In addition, an operation unit 14 is provided in front of the left side of the main frame 4 for the user to instruct start and stop of the vibration operation. The user can start the vibration operation by operating the operation unit 14 after getting on the seat 7. Exciters 20 that vibrate the central portion of the sheet 7 in the vertical direction are provided on the left and right sides of the main frame 4 by drawing the outer peripheral edge of the sheet 7 at a predetermined timing. One vibration device 20 is composed of five solenoid mechanisms 21. Further, on the front side of the main frame 4, a vibration detector 41 that detects the vertical vibration of the sheet 7 by detecting the moving distance of the outer peripheral edge of the sheet 7 is provided.

  Next, the configuration of the solenoid mechanism 21 will be described with reference to FIG. As shown in FIG. 2, the solenoid mechanism 21 mainly includes a solenoid 22, a mounting plate 26 having a guide portion 37, and a mounting spring 33.

  On the inner surface of the main frame 4 (the lower left surface in FIG. 2), L-shaped mounting brackets 23 in a left side view are fixed at a plurality of locations. A through-hole 24 is formed in a portion that protrudes inward of the mounting bracket 23 in a direction parallel to the main frame 4, and a cylindrical shaft 25 is rotatably held in the through-hole 24 of the mounting bracket 23. Has been. The solenoid 22 is fixed to a rectangular plate-shaped mounting plate 26 with bolts 27 and nuts 28 (see FIG. 4). The lower surface of the mounting plate 26 is on the main frame 4 side slightly from the center. A block 29 (see FIG. 4) in which a through hole is formed in a direction parallel to 4 is fixed. The shaft 25 is inserted through the through hole of the block 29. Thus, the solenoid 22 is attached to the main frame 4 so as to be rotatable about the shaft 25 as the center of rotation in accordance with the angle of the seat surface of the seat 7.

  Further, on the inner surface of the main frame 4, there is a rod-shaped positioning member 30 on the inner side of the mounting plate 26 at a position above the end of the mounting plate 26 on the outer side (upper right side in FIG. 2). Projected toward. When the tip end of the plunger 32 of the solenoid 22 rotates downward, the rubber plate 31 disposed on the upper surface of the mounting plate 26 contacts the positioning member 30. Therefore, while the noise and the parts are prevented from being damaged by the rubber plate 31, the rotation range of the solenoid 22 with the shaft 25 as the rotation center is appropriately limited.

  The plunger 32 of the solenoid 22 and the seat 7 are connected by an attachment spring 33. Further, the moving direction and the moving distance of the plunger 32 are regulated by the guide portion 37. Hereinafter, the structure of the solenoid 22, the guide part 37, and the attachment spring 33 will be described in detail.

  Next, the structure of the solenoid 22 will be described with reference to FIG. The left side in FIG. 3 is the front end side of the solenoid 22, and the right side in FIG. 3 is the rear end side of the solenoid 22. The solenoid 22 has a ferromagnetic frame 45 having a cylindrical outer shape, and a plate-like base portion 46 is connected to the frame 45. The solenoid 22 is fixed to the mounting plate 26 through a fixing hole 47 formed in the frame 45. The columnar frame 45 is formed with a cylindrical insertion portion 48 having the same axis as the frame 45 from the tip side to the inside. A plunger 32 which is a movable iron core made of a ferromagnetic material is movably inserted into the insertion portion 48.

  The plunger 32 includes a leg long part 51, a tip part 52, and a flange 56. The long leg portion 51 is a columnar member extending from the flange 56 toward the rear end, and is inserted into the insertion portion 48. A connecting hole 54 and a connecting groove 55 for connecting a mounting spring 33 (see FIG. 2) and a regulating member 71 described later are formed in the distal end portion 52. The connection groove 55 is formed on the distal end surface 53 of the distal end portion 52 so as to be concave toward the rear end side. The connecting hole 54 is drilled in the distal end portion 52 so as to go straight to the connecting groove 55. The flange 56 is provided between the long leg portion 51 and the distal end portion 52, and the rearward movement of the plunger 32 is restricted when the flange 56 comes into contact with the inlet of the insertion portion 48.

  The inner diameter of the insertion portion 48 is formed to be slightly larger than the outer diameter of the leg long portion 51 of the plunger 32 in order to smoothly reciprocate the plunger 32. A fixed iron core 57 is disposed on the rear end side of the insertion portion 48. Further, a bobbin 58 made of an insulating material is disposed inside the frame 45 so as to surround the insertion portion 48, and a coil 59 is formed by winding an insulating copper wire around the bobbin 58. When a current is passed through the insulated copper wire of the bobbin 58, a force acts on the plunger 32 toward the rear end side due to the generated magnetism. Thereby, the outer peripheral edge part of the sheet | seat 7 (refer FIG. 1) can be drawn in outside.

  Next, the guide part 37 and the regulating member 71 will be described with reference to FIGS. The lower side in FIG. 4 is the front end side of the solenoid mechanism 21 and the upper side in FIG. 4 is the rear end side. Further, the lower side of FIG. 5 is the front end side of the solenoid mechanism 21, and the right side of FIG. 5 is the rear end side. As shown in FIG. 4, the half surface on the distal end side of the rectangular attachment plate 26 functions as a guide portion 37 that guides the movement of the plunger 32. The guide portion 37 has a slit 68 extending in the front-rear direction, that is, in a direction parallel to the moving direction of the plunger 32. Further, the guide portion 37 is provided with a stopper 69 serving as a terminal portion of the slit 68 at a position spaced a predetermined distance from the end surface of the solenoid 45 on the front end side of the frame 45.

  4 and FIG. 5, a restricting member 71, which is a screw, is inserted through the connecting hole 54 formed in the distal end portion 52 of the plunger 32 and the slit 68 of the guide portion 37. A nut 72 is connected to the tip of the member 71. Thereby, the reciprocating movement of the plunger 32 is guided by the guide part 37, and the plunger 32 can smoothly reciprocate. Further, when the plunger 32 moves to the distal end side, the regulating member 71 comes into contact with the stopper 69 of the guide portion 37 (see FIG. 4), so the movement distance of the plunger 32 to the distal end side is regulated by the guide portion 37. Is prevented from falling off.

  Next, the attachment spring 33 will be described with reference to FIG. The attachment spring 33 includes a spring 36 and two attachment portions 34 and 35. The first attachment portion 34 is formed in a plate shape, and is connected to the seat 7 while fixing the spring 36. The second attachment portion 35 has the same shape as the first attachment portion 34 and fixes the spring 36. Then, the regulating member 71 is inserted into the coupling hole 54 (see FIG. 3) in a state where the second mounting portion 35 is fitted in the coupling groove 55 formed in the distal end portion 52 of the plunger 32, whereby the second The attachment portion 35 is connected to the plunger 32. Thereby, the plunger 32 of the solenoid 22 and the outer peripheral edge of the seat 7 are connected via the attachment spring 33.

  As described above, the solenoid mechanism 21 of the present embodiment includes the guide portion 37 having the slit 68 extending in a direction parallel to the moving direction of the plunger 32. A regulating member 71 extending from the plunger 32 and moving together with the plunger 32 is slidably inserted into a slit 68 provided in the guide portion 37. Thereby, the reciprocating movement of the plunger can be guided by the guide portion 37. Accordingly, the vibration transmitted from the seat 7 to the plunger 32 can be dispersed in the guide portion 37, and the load applied to the plunger 32 and the insertion portion 48 of the plunger 32 can be reduced while smoothly reciprocating the plunger 32, and the solenoid 22. It is possible to prevent functional degradation and breakdown.

  Further, the guide portion 37 is provided with a stopper 69 that restricts the movement of the restriction member 71 in the direction away from the insertion portion 48. Therefore, the movement distance of the plunger 32 connected to the regulating member 71 can be regulated appropriately. Therefore, the load applied to the plunger 32 and the insertion portion 48 can be further reduced, and the plunger 32 can be prevented from coming off from the insertion portion.

  A spring 36 is interposed between the outer peripheral edge of the seat 7 and the plunger 32. Therefore, the impact transmitted from the seat 7 to the plunger 32 can be absorbed by the spring 36, and the load applied to the plunger 32 and the insertion portion 48 can be further reduced. Further, since the spring 36 can absorb the impact transmitted to the seat 7 when the driving of the solenoid 22 is started, the seat 7 can be smoothly vibrated without transmitting the impact to the user.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. Hereinafter, modifications of the above embodiment will be described. In addition, when the same member is used by the said embodiment and each modification, the same number is attached | subjected and the description is abbreviate | omitted or simplified.

  First, the solenoid mechanism 121 according to the first modification will be described with reference to FIG. FIG. 6 is a side view of the solenoid mechanism 121 according to the first modification. In the first modification shown in FIG. 6, the solenoid 22 is connected to the main frame 4 so that the moving direction of the plunger 32 is the vertical direction. And the guide part 37 is being fixed to the solenoid 22 so that the slit 68 (refer FIG. 4) may become parallel to the vertical direction, ie, the moving direction of the plunger 32. FIG. A restriction member 71 is movably inserted in the slit 68 of the guide portion 37, and a rope 151 is connected to the restriction member 71. A pulley 152 is disposed at the upper end of the main frame 4, and a rope 151 connected to the plunger 32 is wound around the pulley 152 and fixed to the outer peripheral edge of the seat 7 via a spring 153. ing. Thereby, since the clearance gap between the outer periphery part of the sheet | seat 7 and the main frame 4 can be made narrower, a possibility that a limb may be pinched in a clearance gap can be reduced, and the automatic vibration health instrument 101 is made small. Can be Further, since the movement of the rope 151 is guided by the pulley 152, the load on the plunger 32 in a direction different from the moving direction can be further reduced. Therefore, the plunger 32 can be smoothly reciprocated, and the possibility that the solenoid 22 is deteriorated or damaged can be reduced.

  Next, with reference to FIG. 7, the guide part 137 of the solenoid mechanism which concerns on a 2nd modification is demonstrated. FIG. 7 is a cross-sectional view of the guide portion 137 according to the second modification when viewed from the extending direction of the groove 178. As shown in FIG. 7, the slit 68 (see FIG. 4) for guiding the movement of the moving member 171 may be a groove 178. In this case, when the moving member 171 moves downward, the lower end portion of the moving member 171 comes into contact with the bottom surface of the groove 178, so that the downward movement of the plunger 32 connected to the moving member 171 can also be restricted. Moreover, as shown in FIG. 6, the moving member 171 does not need to be a screw.

  Next, a solenoid mechanism according to a third modification will be described with reference to FIG. FIG. 8 is a side view of a solenoid mechanism according to a third modification. The solenoid 122 used in the third modification is arranged so that the movement direction of the plunger 132 is the vertical direction, as in the first modification. Therefore, the distance between the outer peripheral edge of the sheet 7 and the main frame 4 can be reduced. Moreover, since the movement of the rope 151 is guided by the pulley 152, the addition to the plunger 132 can be reduced. Further, the plunger 132 is provided with a fixed iron core 57 (see FIG. 3) and a push bar 133 that passes through the end surface 123 on the rear end side (lower side in FIG. 8) of the solenoid 122 and extends to the rear end side. . A push spring 135 is disposed between the flange 134 provided at the rear end of the push bar 133 and the end surface 123 of the solenoid 122. Thereby, the plunger 132 can be urged | biased to the rear-end side. Further, the push bar 133 is provided with a screw 136 protruding in a direction perpendicular to the axial direction of the push bar 133. When the plunger 132 moves to the distal end side, the screw 136 protruding from the push bar 133 comes into contact with the end surface 123. Therefore, by setting the projecting position of the screw 136 to an appropriate position, the screw 136 functions as a movement restricting portion, and the movement distance of the plunger 132 can be restricted. Furthermore, in the third modified example, since the plunger 132 can rotate about the axis, the member can be prevented from being worn or malfunctioned due to the rope 151 being twisted.

  Further, the present invention can be modified in other ways. The guide portion 37 of the present embodiment is integrated with the rectangular attachment plate 26, but the shape of the guide portion 37 can be changed. For example, in order to save space and reduce material, a guide portion in which slits or grooves are formed in a band-shaped member may be used. Further, the movement of the plunger 32 can be guided even if the end portion of the restricting member is C-shaped or Y-shaped, the guide portion is a rod shape, and the tip end portion of the restricting member is fitted to the rod-shaped guide portion.

  In the present embodiment, as shown in FIG. 5, the nut 72 is connected to the lower part of the restricting member 71 and abuts against the lower end of the guide part 37 to restrict the upward movement of the plunger 32. Yes. However, a nut may be connected above the guide portion 37 of the restricting member 71 and the nut may be brought into contact with the upper end portion of the guide portion 37. Thereby, the downward movement of the plunger 32 can also be appropriately controlled, and the possibility that the solenoid 22 is deteriorated or broken can be further reduced.

1 is a perspective view of an automatic vibration health device 1. FIG. 3 is a perspective view of a solenoid mechanism 21. FIG. 3 is a partial cross-sectional view of a solenoid 22. FIG. It is a bottom view of the attachment plate 26 provided with the guide part 37. FIG. 3 is a side view of a solenoid mechanism 21. FIG. It is a side view of the solenoid mechanism 121 which concerns on a 1st modification. It is sectional drawing which looked at the guide part 137 which concerns on a 2nd modification from the extending direction of the groove | channel 178. FIG. It is a side view of the solenoid mechanism which concerns on a 3rd modification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Automatic vibration health appliance 4 Main frame 7 Sheet | seat 21, 121 Solenoid mechanism 22 Solenoid 26 Mounting plate 32 Plunger 36, 153 Spring 37 Guide part 48 Insertion part 54 Connection hole 55 Connection groove 59 Coil 68 Slit 69 Stopper 71 Restriction member

Claims (3)

A rod-shaped plunger made of a magnetic material;
An insertion part for inserting the plunger so as to be reciprocally movable along an axial direction of the plunger;
A solenoid that surrounds the plunger inserted into the insertion portion in a cylindrical shape,
The plunger is connected to the outer peripheral edge of a seat that is oscillated freely through a traction spring on the inner side of the main frame, and the automatic addition for drawing the outer peripheral edge of the seat toward the outer side of the main frame. A solenoid mechanism for a vibration health appliance,
A guide portion having a slit or groove extending in a direction parallel to the moving direction of the plunger;
A solenoid mechanism for an automatic vibration health appliance, comprising: a regulating member that extends from the plunger and is slidably inserted into the slit or the groove to regulate the movement direction of the plunger.   The solenoid mechanism for an automatic vibration health device according to claim 1, wherein the guide portion includes a stopper for restricting a moving distance of the restricting member in a direction away from the insertion portion.   The automatic vibration health appliance solenoid mechanism according to claim 1 or 2, wherein a spring is interposed between the outer peripheral edge of the seat and the plunger.

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