JP2011172631A - Scalp care device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a scalp care device capable of properly getting out of a state where stimulation to a scalp by rotatably driven bosses becomes too strong or a state where load applied to the scalp care device becomes too large. <P>SOLUTION: The scalp care device 1 rotatably drives the bosses 15 by the driving force of a motor 14 and gives care to the scalp by bringing the bosses 15 into contact with the scalp. Further, the scalp care device 1 has a current detecting sensor 21a for detecting overload information whether overload is applied to the rotary driving of the bosses 15 and a control section 21 for blocking the transmission of the driving force to the bosses 15 by controlling to stop the motor 14 based on the overload information. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a scalp care device for, for example, activating the scalp and growing hair.

  As a scalp care device, there is an apparatus that cares the scalp by rotating the protrusion with a driving force of a driving source and bringing the protrusion into contact with the scalp (see, for example, Patent Document 1). In this scalp care device, the user can care (clean the scalp) the scalp that contacts the rotationally driven protrusions by pressing the protrusions against the scalp while holding the main body housing.

JP 7-213328 A

  However, in the scalp care device as described above, if the force pressing the protrusions against the scalp is too strong, the scalp is stimulated too strongly by the rotationally driven protrusions or the load on itself (scalp care device) increases. There is a possibility that it is too much.

  The present invention has been made in order to solve the above-described problems, and the object of the present invention is to provide a state in which the stimulation to the scalp is excessively strong due to the rotationally driven protrusion, and the load on the scalp care device is excessively large. An object of the present invention is to provide a scalp care device that can be accurately removed from a damaged state.

In order to solve the above-mentioned problem, the invention according to claim 1 is a scalp care device for caring the scalp by rotating the protrusion with a driving force of a driving source and bringing the protrusion into contact with the scalp. ,
The gist is provided with an overload detection means for detecting overload information as to whether or not an overload is applied to the rotational drive of the protrusion.

  According to this configuration, it is possible to detect overload information indicating whether or not an overload has been applied to the rotation driving of the protrusion by the overload detection means. Therefore, for example, if the transmission of the driving force to the protrusion is cut off based on the overload information, for example, the user is in a state where the stimulation to the scalp by the driven protrusion becomes too strong, or the scalp care It is possible to automatically escape from a state in which the load on the device (for example, the drive source) becomes too large.

The gist of the invention described in claim 2 is that the scalp care device according to claim 1 is provided with a blocking means for blocking transmission of the driving force to the protrusion based on the overload information.
According to the configuration, the transmission of the driving force to the protrusion is blocked by the blocking means based on the overload information. Therefore, the effect of the invention of claim 1 can be specifically obtained.

According to a third aspect of the present invention, the scalp care device according to the second aspect is characterized in that the blocking means is a control means for stopping and controlling the drive source based on overload information.
According to this configuration, the driving force is stopped from being transmitted to the protrusion by the control means being controlled to stop based on the overload information. Therefore, the effect of the invention described in claim 1 can be obtained more specifically. In addition, since the drive source itself is controlled to stop, for example, a drive (for driving the drive source) that may occur when mechanical transmission during power transmission is mechanically divided based on overload information. There is no power loss.

  The invention according to claim 4 is the scalp care device according to claim 2, wherein the shut-off means is a shut-off mechanism that mechanically cuts off transmission of power during transmission based on overload information. And

  According to this configuration, the transmission of the driving force to the protrusion is blocked by mechanically dividing the transmission of power during transmission based on the overload information by the blocking mechanism. Therefore, the effect of the invention described in claim 1 can be obtained more specifically.

  According to a fifth aspect of the present invention, in the scalp care device according to the fourth aspect, the blocking mechanism mechanically operates overload information as to whether or not an overload is applied to the rotational drive of the protrusion. The overload detecting means obtained in this way is also configured, and the gist is to mechanically interrupt the transmission of power in conjunction with the operation.

  According to this configuration, the shut-off mechanism also constitutes an overload detection means that mechanically operates overload information as to whether or not an overload has been applied to the rotational drive of the protrusions. Since the transmission of power in the middle of transmission is mechanically divided in conjunction with each other, for example, the effect of the invention according to claim 4 can be obtained without separately providing an overload detection means.

  According to a sixth aspect of the present invention, in the scalp care device according to any one of the first to fourth aspects, the overload detection means is a current detection sensor that detects a drive current supplied to the drive source. This is the gist.

  According to this configuration, since the overload detection means is a current detection sensor that detects a drive current supplied to the drive source, it is possible to obtain overload information depending on whether or not the drive current becomes an overcurrent. In this way, it is possible to detect that an overload has been applied in a short time compared to, for example, obtaining overload information based on the temperature of the drive source.

  According to a seventh aspect of the present invention, in the scalp care device according to any one of the first to fourth aspects, the overload detection means detects a temperature of a heating source that is heated according to the overload. The gist is that it is a detection sensor.

  According to this configuration, since the overload detection means is a temperature detection sensor that detects the temperature of the heating source that is heated in response to the overload, the overload is detected depending on whether a heating source such as a drive source has generated heat. Information can be obtained. In this way, the scalp care device can be effectively controlled especially for a failure caused by heat generated by the heating source.

  According to an eighth aspect of the present invention, in the scalp care device according to any one of the first to seventh aspects, the scalp care device includes a plurality of the protrusions that are rotationally driven so that the distance from each other changes. To do.

  According to this configuration, since the plurality of protrusions that are rotationally driven so as to change the distance from each other are provided, it is possible to stimulate the scalp by sandwiching the scalp between the protrusions. It is possible to automatically escape from a state in which the stimulation is too strong or a state in which the load applied to the scalp care device (for example, the drive source) is too large.

  According to the present invention, there is provided a scalp care device that can be accurately removed from a state in which stimulation to the scalp by a rotationally driven protrusion is too strong or a state in which the load on the scalp care device is excessive. Can be provided.

Sectional drawing of the scalp care apparatus in this embodiment. Sectional drawing of the scalp care apparatus in another example. Sectional drawing of the scalp care apparatus in another example. The front view for demonstrating the interruption | blocking mechanism of the scalp care apparatus in another example. The schematic explanatory drawing for demonstrating the interruption | blocking mechanism of the scalp care apparatus in another example.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
As shown in FIG. 1, the scalp care device 1 of the present embodiment has a main body housing 11 having an approximately rectangular parallelepiped appearance, and is housed and held in the main body housing 11, and rotationally drives the two output shafts 12 and 13. And a motor 14 as a drive source. The scalp care device 1 includes surgical elements 16 and 17 having projections 15 that are connected to the distal ends of the output shafts 12 and 13 protruding from the main body housing 11 and are driven based on the rotation of the output shafts 12 and 13. .

A switch 18 for a user to turn on and off the scalp care device 1 is provided on the side of the main body housing 11.
The output shafts 12 and 13 are rotatably supported on the main body housing 11 via bearings 19a and 19b so that the tip side protrudes from the upper part of the main body housing 11 to the outside. Further, output shaft gears 12 a and 13 a are provided on the base end side in the main body housing 11 in the output shafts 12 and 13.

  The motor 14 is capable of rotationally driving the rotary shaft 14a, and a rotary shaft gear 14b is provided at the tip of the rotary shaft 14a. The motor 14 is housed and held in the main body housing 11 so that the rotary shaft gear 14b meshes with the output shaft gear 12a, so that the output shaft 12 can be driven to rotate. The motor 14 is supported so that the rotary shaft gear 14b is rotatably supported in the main body housing 11 and is engaged with the reversing gear 20 meshed with the output shaft gear 13a. Can be driven to rotate in the opposite direction to the output shaft 12. The motor 14 is electrically connected to a control unit 21 housed and held in the main body housing 11, and the control unit 21 is electrically connected to a power source (battery) 22 housed and held in the main body housing 11 and the switch 18. Connected.

  The surgical elements 16 and 17 include a rotating member 31 provided so as to be rotatable with respect to the output shafts 12 and 13 about the second axis X2 that is shifted from the first axis X1 that is the center of the output shafts 12 and 13. It has a plurality of protrusions 15 provided on the rotating member 31 so as to be arranged at a position deviated from the first axis X1 (arranged around the second axis X2). In the present embodiment, four protrusions 15 are provided for each of the treatment elements 16 and 17 (only two are shown in FIG. 1).

  Specifically, the distal ends of the output shafts 12 and 13 and the treatment elements 16 and 17 are connected via a rotating plate 32, a rotation support member 33, and a bearing 34. The rotary plate 32 is formed in a disc shape, and the tips of the output shafts 12 and 13 are fitted and fixed in the center hole 32a. The rotation support member 33 is formed in a substantially cylindrical shape and has a flange portion at the lower end, and the center of the shaft is offset from the first axis X1 that is the center of the output shafts 12 and 13, and the center of the second axis X2 It is being fixed on the said rotating plate 32 so that it may become. On the other hand, the rotating member 31 of the treatment elements 16 and 17 includes a substantially disk-shaped disk part 31a and a cylinder part 31b extending in a cylindrical shape from the lower surface of the disk part 31a. The surgical elements 16, 17 are rotatably supported on the outer peripheral surface of the rotation support member 33 through the bearings 34 on the inner peripheral surface of the cylindrical portion 31 b of the rotary member 31. The protrusions 15 are made of an elastic member such as an elastomer, and are formed in a substantially conical shape. In the present embodiment, the protrusions 15 are provided so as to protrude upward (in parallel with the second axis X2) above the disk portion 31a. It is fixed. The four protrusions 15 in each of the surgical elements 16 and 17 are arranged at equal distances (90 °) at equal distances around the second axis X2. The surgical elements 16 and 17 are rotationally driven in opposite directions by output shafts 12 and 13 respectively connected thereto. The surgical elements 16 and 17 in the present embodiment are lined with respect to a perpendicular bisector connecting the output shafts 12 and 13 when viewed from the axial direction of the output shafts 12 and 13 to be connected. It is set to operate symmetrically (that is, the phase difference is 180 °).

  The control unit 21 includes a current detection sensor 21 a as an overload detection unit that detects a drive current supplied to the motor 14. The control unit 21 having the current detection sensor 21a detects overload information as to whether or not an overload is applied to the rotational drive of the protrusion 15 depending on whether or not the detected drive current exceeds a preset value. . The preset value is set corresponding to a state in which the stimulation to the scalp by the driven protrusion 15 becomes too strong, or a state in which the load on the scalp care device (particularly the motor 14) becomes too large. .

  Moreover, the control part 21 comprises the interruption | blocking means and a control means, and interrupts | blocks transmission of the driving force to the protrusion 15 based on the said overload information. Specifically, when the detected drive current exceeds a preset value, the control unit 21 of the present embodiment stops the supply of the drive current to the motor 14 in order to stop the motor 14.

  In the scalp care device 1 configured as described above, when the switch 18 is turned on by the user, the control unit 21 turns on the motor 14 (its rotating shaft 14a) based on the input of the on operation signal from the switch 18. A driving current for rotational driving is supplied from the power source 22 to the motor 14. When the rotating shaft 14a of the motor 14 is rotationally driven, the output shafts 12, 13 and the rotating plate 32 rotate integrally around the first axis X1. At this time, the rotation support member 33 and the treatment elements 16 and 17 (centers thereof) rotate around the first axis X1 so as to go around the first axis X1. When the tips (protrusions 15) of the surgical elements 16, 17 are brought into contact with the scalp, the distal ends of the surgical elements 16, 17 are brought into close contact with the scalp because the tips of the protrusions 15 are spherical recesses, etc. The scalp of the user is moved in accordance with the movement of the projection 15), and the scalp is cared for (massaged). In addition, since the treatment elements 16 and 17 are rotatably supported with respect to the rotation support member 33 (centered on the second axis X2), a load (friction with the scalp or hair contacting the protrusion 15 or the like) Accordingly, for example, it is possible to rotate around the first axis X1 while maintaining the state in which the positional relationship of the projection 15 with respect to the second axis X2 does not change when viewed from the first axis X1 direction. . Therefore, depending on the load (friction with the scalp and hair, etc.), the hair is entangled with the surgical element based on the movement in which each protrusion 15 simply rotates about the first axis X1 (each with a respective radius). It is possible to avoid such a phenomenon. Further, when the two surgical elements 16 and 17 of the present embodiment are rotated about the first axis X1 and operate so as to approach each other, the respective projections 15 (groups) thereof. It is possible to provide stimulation by sandwiching the scalp between the two.

  Then, for example, when the driving of the protrusion 15 is overloaded during driving and the driving current detected by the current detection sensor 21a exceeds a preset value, the supply of the driving current to the motor 14 is stopped. The motor 14 is controlled to stop.

Next, characteristic effects of the above embodiment will be described below.
(1) It is possible to detect overload information as to whether or not an overload is applied to the rotational drive of the protrusion 15 by the current detection sensor 21a as an overload detection means. Then, the transmission of the driving force to the protrusion 15 is blocked based on the overload information by the control unit 21 serving as a blocking unit. Thus, for example, the user automatically removes from a state in which stimulation to the scalp by the driven protrusion 15 becomes too strong or a state in which the load on the scalp care device 1 (for example, the motor 14) becomes too large. be able to.

  (2) The transmission of the driving force to the protrusion 15 is interrupted by the motor 21 being controlled to stop based on the overload information by the controller 21 as the interrupting means and the controller. In this case, since the motor 14 itself is controlled to stop, for example, the transmission of power during transmission is mechanically divided based on the overload information (to drive the motor 14). B) There is no loss of drive power.

  (3) Since the overload detection means is the current detection sensor 21a that detects the drive current supplied to the motor 14, the overload information is determined depending on whether the drive current becomes an overcurrent (exceeds a preset value). Obtainable. In this way, it is possible to detect that overload has been applied in a short time compared to, for example, obtaining overload information based on the temperature of the motor 14.

  (4) Since a plurality of protrusions 15 (two treatment elements 16, 17) that are rotationally driven so that the distance between them is changed, stimulation can be given by sandwiching the scalp between the protrusions 15. In particular, even in such a case, it is possible to automatically escape from a state where the stimulation to the scalp is too strong or a state where the load applied to the scalp care device 1 (motor 14) is too large.

The above embodiment may be modified as follows.
In the above embodiment, the overload detection means for detecting overload information as to whether or not an overload has been applied to the rotational drive of the protrusion 15, the current detection sensor for detecting the drive current supplied to the motor 14 Although 21a is used, it may be changed to other overload detection means as long as similar overload information can be detected.

  For example, as shown in FIG. 2, the overload detection means may be changed to a temperature detection sensor 41 that detects the temperature of the motor 14 (drive source) as a heating source that is heated in response to the overload. That is, the scalp care device 1 of this example (see FIG. 2) is disposed in close contact with the motor 14 instead of the current detection sensor 21a, and is a temperature detection sensor 41 electrically connected to the control unit 21. It has. Then, the control unit 21 performs stop control of the motor 14 based on overload information indicating whether the motor 14 has generated heat (has exceeded a preset temperature) or not, and interrupts transmission of the driving force to the protrusion 15. .

  Even in this case, for example, the user automatically starts from a state in which the stimulation to the scalp by the driven protrusion 15 becomes too strong or a state in which the load on the scalp care device 1 (for example, the motor 14) becomes too large. Can be removed. In particular, it is possible to effectively control the scalp care apparatus 1 against a failure caused by heat generation of the motor 14.

  In the above embodiment, the control unit 21 serving as the shut-off means controls the stop of the motor 14 based on the overload information, so that the transmission of the driving force to the protrusion 15 is cut off. As long as the transmission of the driving force can be cut off, for example, a cut-off mechanism that mechanically cuts off the transmission of power in the middle of transmission may be used.

  For example, as shown in FIGS. 3 and 4, the transmission of power is mechanically divided between the rotating shaft 14 c of the motor 14 and the rotating shaft gear 14 d meshed with the output shaft gear 12 a and the reverse gear 20. The scalp care device 1 including the blocking mechanism 51 may be used. Specifically, an input side gear 14e that can rotate integrally with the rotary shaft 14c and move in the axial direction is provided at the upper end portion (end portion on the rotary shaft gear 14d side) of the rotary shaft 14c. The side gear 14e is biased upward (rotary shaft gear 14d side) by a spring 52. On the other hand, the output-side rotary shaft 14f to which the rotary shaft gear 14d is fixed is restricted from moving in the axial direction by a bearing (not shown), and the lower end portion of the output-side rotary shaft 14f (the end portion on the motor 14 side) An output side gear 14g that can mesh with the input side gear 14e is fixed.

  When the input side gear 14e and the output side gear 14g are not overloaded, the input side gear 14e and the output side gear 14g are pressed and meshed by the urging force of the spring 52 so that power can be transmitted. The input-side gear 14e is separated (due to the inclination of the teeth) against the urging force of the spring 52 (meshing is released), and the transmission of power is mechanically disconnected. That is, the shut-off mechanism 51 also constitutes an overload detection means that is obtained by mechanically operating overload information as to whether or not an overload has been applied to the rotational drive of the protrusion 15. The transmission of power is mechanically divided in conjunction with

  In the scalp care device 1 (see FIG. 3) configured in this way, the transmission of power during transmission is mechanically divided by the blocking mechanism 51 based on the overload information, so that the driving force to the protrusion 15 is reduced. Transmission is interrupted. Further, the shut-off mechanism 51 also constitutes an overload detection means, and mechanically links the power transmission in the middle of transmission in conjunction with the operation thereof. For example, an overload detection means (current detection The above effects can be obtained without providing the sensor 21a, the temperature detection sensor 41, and the like.

  Further, for example, as shown in FIG. 5, the blocking mechanism 51 (see FIGS. 3 and 4) moves the output shafts 12 and 13 (output shaft gears 12a and 13a) in the direction perpendicular to the axis (the vertical direction in FIG. 5). ) In a movable manner, and may be changed to a blocking mechanism 55 having a configuration in which the springs 53 and 54 are urged toward the rotating shaft gear 14b and the reverse gear 20. In other words, in this example (see FIG. 5), the output shaft gear 12a and the rotary shaft gear 14b are engaged with each other by the urging force of the spring 53 to transmit power when no overload is applied. In this state, the output shaft gear 12a is separated (disengaged) against the urging force of the spring 53, and the transmission of power is mechanically divided. In this example (see FIG. 5), the output shaft gear 13a and the reversing gear 20 are engaged with each other by the urging force of the spring 54 in a state where no overload is applied, so that the power is transmitted and the overload is applied. In the state, the output shaft gear 13a is separated (disengaged) against the urging force of the spring 54, and the transmission of power is mechanically disconnected.

  Even in this case, the shut-off mechanism 55 also constitutes an overload detection means that is obtained by mechanically operating overload information as to whether or not an overload has been applied to the rotational drive of the protrusion 15, and its operation The transmission of power is mechanically disconnected in conjunction with the motor. In the scalp care device 1 (see FIG. 5) configured as described above, the transmission of power during transmission is mechanically divided by the blocking mechanism 55 based on the overload information, so that the driving force to the protrusion 15 is reduced. Transmission is interrupted and the above effect can be obtained.

  The shut-off mechanism does not constitute overload detection means, but is provided with overload detection means (current detection sensor 21a, temperature detection sensor 41, etc.) separately, and transmits power during transmission based on the overload information. You may change to the interruption | blocking mechanism (for example, electromagnetic clutch etc.) which divides | segments mechanically.

  In the above embodiment, the scalp care device 1 including the two surgical elements 16 and 17 is embodied. However, the number of the surgical elements 16 and 17 is changed to another number such as one or four, for example. May be embodied.

  DESCRIPTION OF SYMBOLS 14 ... Motor (drive source), 15 ... Protrusion, 21 ... Control part (shut-off means and control means), 21a ... Current detection sensor (overload detection means), 41 ... Temperature detection sensor (overload detection means), 51, 55. Blocking mechanism (blocking means and overload detection means).

Claims (8)

A scalp care device for rotating a protrusion with a driving force of a drive source and caring for the scalp by bringing the protrusion into contact with the scalp,
A scalp care device comprising overload detection means for detecting overload information as to whether or not an overload is applied to the rotational drive of the protrusion. The scalp care device according to claim 1,
A scalp care device comprising a blocking means for blocking transmission of driving force to the protrusion based on the overload information. The scalp care device according to claim 2,
The scalp care device according to claim 1, wherein the shut-off means is a control means for stopping and controlling the drive source based on overload information. The scalp care device according to claim 2,
The scalp care device, wherein the shut-off means is a shut-off mechanism that mechanically cuts off power transmission during transmission based on overload information. The scalp care device according to claim 4,
The shut-off mechanism also constitutes the overload detection means that is obtained by mechanically operating overload information as to whether or not an overload has been applied to the rotational drive of the protrusion, and mechanically interlocks with the operation. Then, the scalp care device is characterized by mechanically dividing the power transmission. The scalp care device according to any one of claims 1 to 4,
The scalp care device, wherein the overload detection means is a current detection sensor that detects a drive current supplied to the drive source. The scalp care device according to any one of claims 1 to 4,
The scalp care device, wherein the overload detection means is a temperature detection sensor for detecting a temperature of a heating source heated in response to the overload. The scalp care device according to any one of claims 1 to 7,
A scalp care device comprising a plurality of the protrusions that are rotationally driven so that the distance between them changes.

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