JP2006255157A - Massage machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a massage machine which has no possibility of affecting the engagement of racks and pinions of a massage unit by falling impact force by preventing deformation while reducing weight by reducing the thickness of rails. <P>SOLUTION: In the massage machine 1, the pinions 13 on the side of the massage unit 14 are engaged with the racks 11 fixed to the rails 10 on the side of a machine frame 6, and the massage unit 14 is moved along the rails 10 by the rotation of the pinions 13 by an electric motor 15. At the rails 10 at pinion stopping positions A of the massage unit during carrying, reinforcing members 20 for suppressing deformation of the rails 10 are provided for partially reinforcing the rails at the pinion stopping positions A for improving rigidity to suppress deformation of the rails. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a massage machine.

  Conventionally, there is a massage machine that moves a massage unit along a rail by meshing a pinion on a massage unit side with a rack fixed to a rail on the body frame side and rotating the pinion with an electric motor (patent) Reference 1).

  When the massage machine is a chair type massage machine, the pinion on the massage unit side having the treatment element is meshed with the rack fixed to the rail of the back frame inside the backrest part, and the pinion is rotated by the electric motor. The massage unit is moved up and down along the rail.

  The chair type massage machine as described above is usually transported in a packed state, but it may be possible that the chair type massage machine is accidentally dropped onto the ground when unloading from a transport truck, for example. Due to such a fall, a large impact force acts on the chair type massage machine.

By the way, the massage unit of the chair type massage machine being transported is stopped so as not to move up and down at a preset pinion stop position (usually below the backrest).
Japanese Patent Laid-Open No. 10-211246

  However, if a large impact force due to falling acts on the chair type massage machine, this drop impact force is transmitted from the pinion of the massage unit to the rail through the rack, so that the rail may deform and affect the engagement between the rack and the pinion. There is. In order to prevent the deformation of the rail, the thickness of the entire rail may be increased (for example, 2 mm), but the weight of the rail cannot be reduced.

  The present invention has been made to solve the above-mentioned problems, and prevents deformation while reducing the thickness of the rail and reducing the weight, and affects the engagement between the rack and the pinion of the massage unit by the drop impact force. It aims at providing the massage machine which does not have a possibility of giving.

  In order to solve the above-mentioned problems, the present invention is configured such that the massage unit side pinion is meshed with a rack fixed to the rail on the body frame side, and the massage unit is moved along the rail by rotation of the pinion by an electric motor. The massage machine provided with the reinforcing member which suppresses a deformation | transformation of a rail in the rail of the pinion stop position of the massage unit at the time of conveyance is provided.

  In order to further suppress the deformation of the rails, it is preferable that the rails are provided at the left and right positions, and the reinforcing members of the rails are integrally connected by a connecting portion.

  In order to reduce the number of parts and the material cost, the reinforcing member is preferably provided integrally with the covering cover of the machine body frame.

  In order to prevent the rack from being damaged, it is preferable to provide a buffer member between the reinforcing member and the contact surface of the rail.

  According to the present invention, since the reinforcing member is provided on the rail at the pinion stop position of the massage unit during transportation, the rail at the pinion stop position is partially reinforced to increase the rigidity. Therefore, even if the drop impact force of the chair type massage machine is transmitted from the pinion of the massage unit to the rail through the rack, the deformation of the rail is suppressed by the reinforcing member, so there is no possibility of affecting the engagement between the rack and the pinion. . In addition, instead of reinforcing the entire rail, it only reinforces a part of the rail where the drop impact force is transmitted, so the entire rail thickness can be reduced and the weight of the rail can be reduced. Is very simple and cheap.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  As shown in FIGS. 1 (a) and 1 (b), a chair type massage machine 1 has a seat frame 3 and an armrest 4 attached to a leg frame 2, and a back frame (airframe frame) of a backrest 5 on the leg frame 2. ) 6 is attached so as to be pivotable back and forth, and a gas spring 7 is connected between the back frame 6 and the leg frame 2. And the backrest part 5 is made to recline by extending / contracting the gas spring 7 by operation of the lever 8 beside the armrest part 4.

  A pair of rails 10, 10 extending in the vertical direction are arranged at the left and right positions in the backrest portion 5, and each rail 10 is formed in a substantially U shape, and the opening surface is opposed to each other. Each is fixed to the back frame 6. A concave step portion 10c for attaching the rack 11 is formed on one side portion 10b of both side portions 10b rising from the bottom portion 10a of each rail 10.

  In each rail 10, a guide roller 12 guided by both side portions 10 b and a pinion 13 that meshes with the rack 11 are coaxially arranged.

  A massage unit 14 is disposed between the left and right rails 10, and an electric motor block 15 and a speed reducer block 16 are provided in the massage unit 14.

  A treatment element 18 is attached to the massage unit 14, and the treatment element 18 is a power transmitted from the electric motor block 15 to the speed reducer block 16, and performs various operations such as squeezing, striking, and vibration alone or in combination. To do it.

  The reduction gear block 16 is provided with a drive shaft 17 extending in the left-right direction, and the coaxially integrated guide roller 12 and the pinion 13 are fixed to both ends of the drive shaft 17, respectively.

  When the drive shaft 17 is driven by the power transmitted from the electric motor block 15 to the speed reducer block 16, the pinion 13 rotates and rolls while meshing with the rack 11, so that the guides are guided by the both side portions 10b of the rail 10. The massage roller 14 is moved in the vertical direction along the rail 10 by the guide roller 12. By the movement of the massage unit 14 in the vertical direction, the height position of the treatment element 18 can be adjusted.

  The chair-type massage machine 1 is normally transported in a packed state, but the massage unit 14 of the chair-type massage machine 1 being transported is at a pinion stop position (usually below the backrest portion) A set in advance. Stopped so that it does not move up and down.

  FIG. 6A shows the relationship between the pinion 13 at the pinion stop position A and the rail 10. In this state, if a large impact force due to dropping acts on the chair type massage machine 1, this drop impact force is transmitted from the pinion 13 of the massage unit 14 to the rail 10 via the rack 11, so as shown in FIG. There is a possibility that the one side portion 10b having the recessed step portion 10c to which the rack 11 is attached is deformed so as to open outward with respect to the other side portion 10b, thereby affecting the engagement between the rack 11 and the pinion 13.

  Therefore, as shown in FIGS. 2A and 2B, a reinforcing member 20 made of a sheet metal bent in a substantially U shape and having a substantially L shape in a side view is provided. The upward portion 20a of the member 20 is fixed along the bottom portion 10a of the rail 10 by welding a (x), and the lateral portion 20b is fixed to the one side portion 10b and the concave step portion 10c to which the rack 11 is attached. Abut along. In addition to fixing by welding, it can also be fixed by caulking pins.

  If the chair type massage machine 1 is configured as described above, since the reinforcing member 20 is provided on the rail 10 at the pinion stop position A of the massage unit 14 during transportation, the rail 10 at the pinion stop position A is partially reinforced. Increased rigidity.

  Therefore, when the drop impact force of the chair type massage machine 1 is transmitted from the pinion 13 of the massage unit 14 through the rack 11 to the rail 10, the one side portion 10b having the concave step portion 10c to which the rack 11 is attached is the other side. Even if it tries to deform so as to open outward with respect to the portion 10b, it does not open outward due to contact with the laterally facing portion 20b of the reinforcing member 20, so that deformation of the rail 10 is suppressed, and the rack 11 and the pinion 13 There is no possibility of affecting the meshing.

  In addition, the entire rail 10 is not reinforced but only the rail 10 at the pinion stop position A where the drop impact force is transmitted, that is, only a part of the rail 10 is reinforced, so that the thickness of the entire rail 10 is reduced (for example, 1 mm), the weight of the rail 10 can be reduced, and the structure is extremely simple and cost-effective.

  As shown in FIG. 3A, the reinforcing members 20 of the rails 10 at the left and right positions can be integrally connected by a connecting portion 20c.

  By doing so, the rigidity of the reinforcing member 20 itself is also increased, so that the deformation of the rail 10 is further suppressed. The connecting portion 20c may be connected to the left and right reinforcing members 20 by welding or the like, or the left and right reinforcing members 20 and the connecting portion 20c may be integrally formed.

  As shown in FIGS. 3B and 3C, an attachment hole (attachment portion) 20d is formed in the connecting portion 20c of the reinforcing member 20, and the back side of the backrest portion 5 in FIG. The hook portion 21a of the covering cover 21 covering the back frame 6 side) can be inserted and locked.

  In this case, the covering cover 21 on the back side (back frame 6 side) of the backrest portion 5 can be attached using the connecting portion 20c of the reinforcing member 20, so that the attaching portion of the covering cover 21 can be attached. There is no need to provide them separately, and the number of parts and material costs can be reduced.

  As shown in FIGS. 4A and 4B, the reinforcing member 20 can be integrally provided on the covering cover 21. That is, if the covering cover 21 is made of synthetic resin, the reinforcing member 20 is integrally formed on the covering cover 21. In this case, the upward portion 20 a of the reinforcing member 20 only needs to be along the bottom portion 10 a of the rail 10.

  In this way, the reinforcing member 20 can be provided by using the covering cover 21 that covers the back side (back frame 6 side) of the backrest part 5, so that the number of parts and the material cost can be reduced. Become.

  As shown in FIG. 5A, when the sideways portion 20b of the reinforcing member 20 is brought into contact with the one side portion 10b and the recessed step portion 10c to which the rack 11 is attached, the contact surface In the meantime, a buffer member 22 such as a leaf spring 22a or a leaf rubber 22b can be provided.

  In this way, when the drop impact force is transmitted from the pinion 13 of the massage unit 14 to the rail 10 via the rack 11, the one side portion 10 b of the rail 10 is slightly bent via the buffer member 22. Since the stress concentration with respect to 11 is dispersed, damage to the rack 11 can be prevented. When the drop impact force disappears, the slightly bent side portion 10b is restored to its original position by the restoring force.

  As shown in FIG. 5B, instead of the buffer member 22 such as the leaf spring 22a and the leaf rubber 22b shown in FIG. 5A, a leaf spring-like portion 20e is integrally formed on the lateral portion 20b of the reinforcing member 20. can do.

  In this way, the leaf spring-like portion 20e formed integrally with the reinforcing member 20 serves as a buffer member, so that the number of parts and the material cost can be reduced.

  In the said embodiment, although the chair type massage machine 1 was taken as an example as a massage machine, the bed provided with the massage unit may be sufficient.

BRIEF DESCRIPTION OF THE DRAWINGS It is a chair type massage machine which concerns on embodiment of this invention, (a) is the perspective view which removed the cover for a back surface, (b) is the principal part perspective view of a rail part. It is a rail and a reinforcement member, (a) is a side view, (b) is a perspective view. (A) is a side view of the reinforcing member connected by the connecting portion, (b) is a perspective view of the reinforcing member and the covering cover, and (c) is an enlarged view of a portion B of (b). (A) is a perspective view of the covering cover integrally formed with the reinforcing member, (b) is a plan view showing the relationship between the reinforcing member of the covering cover and the rail. (A) is a perspective view which shows the relationship between the reinforcement member which provided the buffer member, and a rail, (b) is a perspective view which shows the relationship between the reinforcement member which provided the leaf | plate spring-shaped part, and a rail. (A) is a side view showing a relationship between a rack and a pinion of a rail, and (b) is a side view in a state where one side part to which the rack is attached is deformed so as to open outward with respect to the other side part. is there.

Explanation of symbols

1 Chair type massage machine (massage machine)
5 Backrest 6 Back frame (airframe frame)
10 rail 11 rack 13 pinion 14 massage unit 15 electric motor block (electric motor)
20 Reinforcing member 20a Upward portion 20b Lateral portion 20c Connection portion 20d Mounting hole (mounting portion)
20e leaf spring (buffer member)
21 Covering cover 22 Buffer member 22a Plate spring 22b Plate rubber A Pinion stop position

Claims (4)

In the massage machine that meshes the pinion on the massage unit side with the rack fixed to the rail on the body frame side, and moves the massage unit along the rail by the rotation of the pinion by the electric motor,
A massage machine, wherein a reinforcing member that suppresses deformation of the rail is provided on a rail at a pinion stop position of the massage unit during transportation.   The massage machine according to claim 1, wherein the rails are provided at left and right positions, and reinforcing members of the rails are integrally connected by a connecting portion.   The massage machine according to claim 1, wherein the reinforcing member is provided integrally with a covering cover of the machine body frame.   The massage machine according to claim 1, wherein a buffer member is provided between the reinforcing member and a contact surface of the rail.

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