WO2022102352A1

WO2022102352A1 - Ferrule, cane, and information processing system

Info

Publication number: WO2022102352A1
Application number: PCT/JP2021/038529
Authority: WO
Inventors: 浩文中川
Original assignee: 京セラ株式会社
Priority date: 2020-11-10
Filing date: 2021-10-19
Publication date: 2022-05-19
Also published as: JP2022076934A

Abstract

This ferrule, which is disposable on the tip of a cane, comprises: a main body part mountable on the shaft of the cane; and a grounding part which is disposed on the outer periphery of the main body part, wherein the grounding part can be attached to/detached from the main body.

Description

Crests, wands, and information processing systems

This disclosure relates to stone tips, wands, and information processing systems.

Conventionally, a white cane as shown in Patent Document 1, for example, has been used to support the movement of visually impaired persons and the like.

The stone tip according to one aspect of the present disclosure is a stone tip that can be arranged at the tip of a cane, and includes a main body portion that can be attached to the shaft of the cane and a grounding portion arranged on the outer periphery of the main body portion. The grounding portion is removable from the main body portion.

According to one aspect of the present disclosure, even if the stone tip is worn due to grounding, only the part to be grounded needs to be replaced.

It is a schematic diagram which shows the state which the stone tip which concerns on Embodiment 1 of this disclosure is attached to a cane. It is an external view of a stone tip. It is sectional drawing which shows the state which cut the stone tip in the plane parallel to the axial direction of a cane. It is sectional drawing which shows the internal structure of a stone tip. It is a block diagram which shows the structure of an information processing system including a stone tip and a terminal of a user who is communicably connected to the stone tip. FIG. 3 is a cross-sectional view showing a state in which a stone tip having a structure different from the structure shown in FIG. 3 is cut in a plane parallel to the axial direction of the cane. FIG. 3 is a cross-sectional view showing a state in which a stone tip having a structure different from the structure shown in FIG. 3 is cut in a plane parallel to the axial direction of the cane. FIG. 3 is a cross-sectional view showing a state in which a stone tip having a structure different from the structure shown in FIG. 3 is cut in a plane parallel to the axial direction of the cane. FIG. 3 is a cross-sectional view showing a state in which a stone tip having a structure different from the structure shown in FIG. 3 is cut in a plane parallel to the axial direction of the cane. FIG. 3 is a cross-sectional view showing a state in which a stone tip having a structure different from the structure shown in FIG. 3 is cut in a plane parallel to the axial direction of the cane. FIG. 3 is a cross-sectional view showing a state in which a stone tip having a structure different from the structure shown in FIG. 3 is cut in a plane parallel to the axial direction of the cane. It is sectional drawing which shows the state which cut the stone tip in the plane parallel to the axial direction of a cane. FIG. 3 is a cross-sectional view showing a state in which a stone tip provided with a connecting member is cut in a plane parallel to the axial direction of the cane. It is sectional drawing which shows the state which cut the stone tip provided with the protection part in the plane parallel to the axial direction of a cane.

The white cane's tip has many opportunities to come into contact with the ground and is heavily worn, so it will be necessary to replace it as appropriate. When exchanging the entire stone tip, the financial burden is large if the number of exchanges is large. Therefore, in the cane according to one aspect of the present disclosure, the portion of the cane that comes into contact with the road surface can be attached to and detached from the main body of the cane, so that even if the cane is worn due to grounding, only the portion that comes into contact with the ground needs to be replaced. It is something to do.

[Embodiment 1]
Hereinafter, one embodiment of the present disclosure will be described in detail. FIG. 1 is a schematic view showing a state in which the stone tip 1 according to the embodiment of the present disclosure is attached to the cane 100. FIG. 2 is an external view of the stone tip 1. Reference numeral 201 in FIG. 2 is a side view of the ridge 1, and reference numeral 202 in FIG. 2 is a diagram showing a state in which the ridge 1 is viewed from the bottom surface direction (direction indicated by an arrow X in 201 of FIG. 2).

As shown in FIG. 1, the stone tip 1 is a stone tip that can be arranged at the tip end (tip) 101 of the cane 100. The cane 100 is, for example, a so-called white cane used by a visually impaired user to assist walking. The user can walk while checking the state of the road surface by bringing the cane 100 into contact with the road surface. The cane 100 provided with the stone tip 1 according to the present disclosure is not limited to a white cane, and may be, for example, a cane as a walking aid for the elderly or the sick or injured.

As shown in FIG. 2, the stone tip 1 includes a main body portion 10 and a grounding portion 20. The pavement 1 is a portion of the tip portion 101 that comes into contact with the road surface. The main body 10 is a member that can be attached to the shaft 102 of the cane 100. As shown in FIG. 2, the main body 10 may have a cylindrical shape. However, the shape of the main body 10 is not particularly limited, and may be, for example, a quadrangular prism shape or a spherical shape. When the main body 10 is configured to be in contact with the road surface, the bottom surface of the main body 10 is slightly raised toward a flat surface or a direction in contact with the road surface (direction opposite to the direction indicated by the arrow X in 201 of FIG. 2). It may have a dome shape. Further, the material forming the main body portion 10 is not particularly limited. As an example, the main body 10 may be formed of nylon, ABS (Acrylonitrile-Butadiene-Styrene) resin, PEEK (PolyEtherEtherKetone), or the like.

The grounding portion 20 is arranged on the outer periphery of the main body portion 10 and is removable from the main body portion 10. The ground contact portion 20 is attached to the main body portion 10 so that the ground contact portion 20 comes into contact with the road surface when the user uses the cane 100. When the user uses the cane 100, the main body portion 10 may come into contact with the road surface together with the ground contact portion 20. As an example, when the main body portion 10 has a cylindrical shape, the ground contact portion 20 has an annular shape surrounding the main body portion 10.

The shape of the grounding portion 20 is not limited to the shape shown in FIG. For example, the bottom surface of the ground contact portion 20 may have a dome-shaped shape slightly raised in the direction of contact with the road surface (direction opposite to the direction indicated by the arrow X in 201 of FIG. 2).

The material constituting the grounding portion 20 is not particularly limited. Since the ground contact portion 20 has many opportunities to come into contact with the road surface, the ground contact portion 20 may be formed of a material that does not easily wear even if it comes into contact with the road surface frequently. Further, the ground contact portion 20 may be formed of a relatively lightweight material in order to improve the convenience of the cane 100. For example, the grounding portion 20 may be formed of a resin-based material such as ABS (Acrylonitrile-Butadiene-Styrene) resin, PEEK (PolyEtherEtherKetone), or PC (Polycarbonate). The grounding portion 20 may be made of the same material as the main body portion 10. In the present embodiment, the main body portion 10 and the ground contact portion 20 are made of the same material.

Further, the grounding portion 20 may be made of a material different from that of the main body portion 10. When the grounding portion 20 is made of a material different from that of the main body portion 10, the Young's modulus of the grounding portion 20 may be larger than the Young's modulus of the main body portion 10. As a result, the wear of the ground contact portion 20 can be reduced. Further, as will be described later, when other members or parts are housed inside the main body 10, the housed object can be protected.

The method of joining the grounding portion 20 to the main body portion 10 is that the grounding portion 20 does not come off from the main body portion 10 when the user uses the cane 100, and the user's hand or when the user replaces the grounding portion 20. It suffices if the grounding portion 20 can be removed using a tool.

The ground contact portion 20 has an outer edge portion 21, and the outer edge portion 21 may be rotatable around the axis of the cane 100 as a rotation axis. As an example, as shown in FIG. 1, the ground contact portion 20 may be a ball bearing including a plurality of balls 22. When the user uses the cane 100, the ball 22 is configured to be in contact with the road surface. By rotating each ball 22, the ground contact portion 20 can rotate with the axis of the cane 100 as the axis of rotation. The configuration that enables the grounding portion 20 to rotate is not limited to the above.

FIG. 3 is a cross-sectional view showing a state in which the stone tip 1 is cut in a plane parallel to the axial direction of the cane 100. As shown in FIG. 3, the ground contact portion 20 has an annular or tubular portion, and the main body portion 10 may be fitted to the inner surface 23 of the annular or tubular portion. According to this configuration, when the inner surface 23 of the ground contact portion 20 comes into contact with the outer surface 16 of the main body portion 10, a frictional force is generated between the main body portion 10 and the ground contact portion 20. As a result, the joint between the grounding portion 20 and the main body portion 10 can be stabilized.

Reference numeral 401 in FIG. 4 is a cross-sectional view showing the internal structure of the stone tip 1. Reference numeral 402 in FIG. 4 is a diagram showing a state in which the stone tip 1 is viewed from the bottom surface direction. Further, FIG. 5 is a block diagram showing a configuration of an information processing system 200 including a stone tip 1 and a user's terminal 30 communicably connected to the stone tip 1. As shown in FIG. 4, a hollow portion 11 may be provided inside the main body portion 10. Further, as shown in FIG. 5, the stone tip 1 may be provided with an antenna 12, an RFID module (detection unit) 13, and a communication unit 14. The antenna 12, the RFID module 13, and the communication unit 14 may be provided and housed inside the cavity 11.

The RFID module 13 is a module capable of detecting an external RFID tag (detection target) via an antenna 12 (for example, installed on a road surface or the like). When the RFID module 13 detects the RFID tag, the RFID module 13 outputs the detection result to the communication unit 14.

The communication unit 14 is a communication module that is connected to a terminal 30 (receiver) (eg, a smartphone or the like) possessed by the user so as to be able to communicate with each other. When the communication unit 14 acquires the detection result indicating that the RFID tag has been detected from the RFID module 13, the communication unit 14 transmits the detection result to the terminal 30. As an example, the communication unit 14 may be a BLE module in which a circuit, an antenna, and the like for performing wireless communication with an external device using Bluetooth (registered trademark) are integrated.

As shown in FIG. 5, the terminal 30 has a receiving unit 31 communicably connected to the communication unit 14, a control unit 32 that controls the operation of each unit of the terminal 30, and a notification unit for notifying the user of the detection result. 33 is provided. The terminal 30 acquires a detection result indicating that the RFID tag has been detected from the communication unit 14 via the reception unit 31. When the control unit 32 acquires the detection result, it controls the operation of the notification unit 33 and notifies the user of the detection result.

For example, when the notification unit 33 is a vibrator that generates vibration, the control unit 32 notifies the user of the detection result by vibrating the notification unit 33. Alternatively, when the notification unit 33 is a speaker that emits voice, the control unit 32 notifies the user of the detection result by performing voice guidance from the notification unit 33. The notification method may be the above-mentioned method, a method in which the above-mentioned methods are combined, or a method other than the above-mentioned method. The notification method is not particularly limited as long as the user can recognize that "the RFID tag is present in the vicinity". The configuration of the notification unit 33 may be appropriately selected according to the above notification method.

Further, the cavity 11 may be provided with a battery 15 for supplying electric power to the RFID module 13 and the communication unit 14. The battery 15 may be a disposable battery or a rechargeable battery. Further, the place where the battery 15 is provided is not limited to the hollow portion 11. For example, as shown in FIG. 1, the cane 100 may include a grip portion 103 for the user to grip the cane 100, and the battery 15 may be provided in the grip portion 103.

As described above, the stone tip 1 is a stone tip that can be arranged at the tip of the cane 100, and has a main body portion 10 that can be attached to the shaft 102 of the cane 100, and a grounding portion 20 arranged on the outer periphery of the main body portion 10. The grounding portion 20 is detachable from the main body portion 10.

According to the configuration, the main body 10 of the stone tip 1 is protected by the grounding portion 20 (guide). Due to its use, the cane 100 is particularly prone to wear at the tip portion where the stone tip 1 is provided. In particular, when the cane 100 is a white cane for assisting the walking of a visually impaired person, the user who is a visually impaired person uses the cane by hitting the road surface with the tip of the cane 100, so that the stone tip 1 in contact with the road surface is worn. Is intense. Here, since the ridge 1 is provided with the ground contact portion 20, when the ridge 1 is worn, the ground contact portion 20 is first worn. As a result, even if the ridge 1 is worn out, it is not necessary to replace the entire ridge 1 and only the grounding portion 20 needs to be replaced, which is economical.

Further, the ground contact portion 20 may be provided with an outer edge portion 21, and the outer edge portion 21 may be rotatable around the axis of the cane 100 as a rotation axis. According to this configuration, the rotation of the outer circumference of the ground contact portion 20 makes it easier for the cane 100 to follow the operation by the user. It is assumed that the cane 100 is violently operated by the user, but the rotation of the grounding portion 20 reduces the unreasonable movement of the grounding portion 20. As a result, the degree of wear of the ground contact portion 20 is reduced.

In the stone tip 1, a hollow portion 11 may be provided inside the main body portion 10. Further, the cavity 11 is provided with an RFID module 13 capable of detecting an external RFID tag and a communication unit 14 capable of transmitting the detection result of the RFID module 13 to the terminal 30 possessed by the user of the cane 100. May be good. Further, the stone tip 1 may be connected to the stone tip 1 in a communicable manner, and the information processing system 200 may be configured together with the terminal 30 capable of receiving the detection result.

According to the configuration, the RFID module 13 can detect the RFID tag and notify the terminal 30 such as the user's smartphone via the communication unit 14. For example, if an RFID tag is installed in a dangerous place such as near a railroad track on the platform of a station, the user can be notified that the dangerous place is approaching. Further, since the main body portion 10 is protected by the grounding portion 20, the resistance of the antenna 12, the RFID module 13, and the communication portion 14 to impact is improved.

Further, when the stone tip 1 is worn, only the grounding portion 20 may be replaced instead of the main body portion 10. When the RFID module 13 or the like is provided in the cavity 11 as in the above-described configuration, it is economically burdensome to replace the entire ridge 1 every time the ridge 1 is worn. In the ridge 1 according to the present disclosure, when the ridge 1 is worn, only the grounding portion 20 needs to be replaced, and it is not necessary to replace the expensive RFID module 13 or the like, so that the financial burden on the user is further reduced.

<Modification example>
The method of joining the main body portion 10 and the grounding portion 20 is not limited to the method described with reference to FIG. Hereinafter, another example of joining the main body portion 10 and the grounding portion 20 will be described with reference to FIGS. 6 to 11. 6 to 11 are cross-sectional views showing a state in which a stone tip 1 having a configuration different from that shown in FIG. 3 is cut in a plane parallel to the axial direction of the cane 100. In the stone tips 1 shown in FIGS. 6 to 11, the main body portion 10 and the ground contact portion 20 are joined by different methods. The configuration shown below is merely an example, and the main body portion 10 and the grounding portion 20 may be joined by still another method.

As shown in FIG. 6, the stone tip 1 may have an engaging portion that engages with each other on each of the inner surface 23 of the ground contact portion 20 and the outer surface of the main body portion 10 facing the inner surface 23. The main body portion 10 and the grounding portion 20 may be engaged by engaging the engaging portions with each other.

Specifically, as shown by reference numeral 601 in FIG. 6, the inner surface 23 of the ground contact portion 20A has a convex portion 24 as an engaging portion, and the outer surface 16 of the main body portion 10A facing the inner surface 23 is It may have a recess 17 as an engaging portion. Alternatively, as shown by reference numeral 602 in FIG. 6, the inner surface 23 of the ground contact portion 20B has a recess 25 as an engaging portion, and the outer surface 16 of the main body portion 10B facing the inner surface 23 serves as an engaging portion. May have a convex portion 18 of. As shown by

reference numerals

601 and 602 in FIG. 6, the convex portion 24 is located in the concave portion 17, and the convex portion 18 is located in the concave portion 25, so that the main body portion 10A and the grounding portion 20A, or the main body portion 10B and the grounding portion are grounded. Engage with portion 20B. The outer surface 16 of the main body portion 10 and the inner surface 23 of the ground contact portion 20 may have a screw shape, and both may be in a shape of engaging as screws.

As in the above configuration, the possibility that the grounding portion 20 is disengaged from the main body portion 10 is reduced by engaging the main body portion 10 and the grounding portion 20 at the engaging portion.

Further, the thickness of the upper end of the main body portion 10 may be larger than the thickness of the region in contact with the ground contact portion 20. Due to the large thickness of the upper end of the main body 10, it is possible to reduce the possibility that the ground contact portion 20 moves away from the road surface, in other words, slips up when the user is using the cane 100. An example of a configuration in which the shortest distance between the position where the main body portion 10 and the grounding portion 20 are in contact with the outer peripheral surface of the grounding portion 20 is shorter on the handle side than on the grounding side is the stone tip 1C shown in FIG. Be done. In the stone tip 1C, the outer surface 16A of the main body portion 10C and the inner surface 23A of the ground contact portion 20C have a tapered shape. Alternatively, as shown in FIG. 9, in the stone tip 1D, the outer surface 16B of the main body portion 10D and the inner surface 23B of the ground contact portion 20D have a stepped shape.

Further, as shown in FIG. 9, in the stone tip 1E, the ground contact portion 20E covers the tip side (the side installed on the road surface) of the main body portion 10 in the axial direction in addition to the portion covering the outer periphery of the main body portion 10. It may have a portion 26. That is, in the stone tip 1D shown in FIG. 8, there was an opening in the central portion of the surface of the ground contact portion 20D on the tip end side, and the bottom surface of the main body portion 10D was exposed. On the other hand, in the stone tip 1E shown in FIG. 10, there is no opening on the surface of the ground contact portion 20E on the tip end side of the cane, and the main body portion 10 has the tip end of the cane 100 by the portion 26 covering the tip end side in the axial direction of the cane. The entire side surface is covered. According to this configuration, the side surface of the main body 10 on the grounding side is covered by the portion 26 that covers the axial tip side of the cane 100, so that the risk of the main body 10 slipping up due to grounding can be reduced and the main body 10 can be raised. The risk of wear can be reduced.

Further, the stone tip 1F may be provided with a grounding portion 20F as shown in FIG. Specifically, in the radial direction of the ground contact portion 20F, the thickness of the portion of the ground contact portion 20F that is in contact with the road surface (the length indicated by the arrow P in FIG. 10) is the thickness of the portion that is not in contact with the road surface (in FIG. 10). It may be thicker than the thickness indicated by the arrow Q). The ground contact portion 20F is scraped by coming into contact with the road surface. Therefore, by thickening the portion of the ground contact portion 20F that comes into contact with the road surface, even if the stone tip 1 comes into contact with the road surface, the ground contact portion 20F is first scraped and the time required to reach the main body portion 10 can be lengthened. As a result, the life of the stone tip 1F can be extended.

Further, the stone tip 1G may include a main body portion 10E and a grounding portion 20G as shown in FIG. In the stone tip 1G, the main body portion 10E has a substantially cylindrical shape, and the radius of the circle decreases as the portion of the cylinder on the shaft 102 side approaches the shaft 102 side. Further, a concave portion 19 is provided on the ground surface side of the main body portion 10E, and a concave portion 191 recessed outward in the radial direction is provided on the inner side surface of the concave portion 19.

The grounding portion 20G has a disk shape and is provided with a convex portion 27 that fits into the concave portion 19 on the contact surface with the main body portion 10E, and is in contact with the main body portion 10E on the radial outer side of the convex portion 27. An annular recess 29 into which the ground-side end 110 fits is provided. Further, a convex portion 28 that fits with the concave portion 191 is provided on the outer surface of the convex portion 27 in the radial direction.

When the grounding portion 20G is attached to the main body portion 10E, the end portion 110 on the grounding surface side of the main body portion 10E is inserted into the recess 29 of the grounding portion 20G. Further, the convex portion 27 of the grounding portion 20G is fitted into the concave portion 19 of the main body portion 10E, and the convex portion 28 of the grounding portion 20G is further fitted into the concave portion 191 of the main body portion 10E. As described above, in the stone tip 1G, since the convex portions and the concave portions are engaged at a plurality of locations and directions, the main body portion 10E and the ground contact portion 20G are strongly engaged with each other, and the ground contact portion 20G may be disengaged from the main body portion 10E. Is reduced.

Further, in such a case, the concave portion 19 extends in the circumferential direction of the inner surface of the main body portion 10E, and the main body portion 10E has a groove connected to the concave portion 19 and extended in the insertion direction of the ground contact portion 20G. You may be. As a result, when the grounding portion 20G is inserted into the main body portion 10E, the convex portion 27 of the grounding portion 20G can be inserted so as to pass through the groove. The main body portion 10E and the grounding portion 20G can be engaged with each other. Such a configuration can also be adopted for the engagement structure and the like in the embodiment shown in FIG.

Further, the stone tip 1 may be provided with other attachments other than the main body portion 10 and the ground contact portion 20. For example, the stone tip 1 may be provided with a plurality of legs that can be attached to the main body portion 10. The plurality of legs draw a curve from the main body 10 or extend linearly in the road surface direction. When the user uses the cane 100, the cane 100 can be stabilized by installing the ground contact portion 20 and a plurality of legs on the road surface.

FIG. 12 is a cross-sectional view showing a state in which the stone tip 1 is cut in a plane parallel to the axial direction of the cane 100. As shown by reference numeral 1201 in FIG. 12, the tip portion 101 may be in contact with the upper end of the main body portion 10. Alternatively, as shown by reference numeral 1202 in FIG. 12, the tip portion 101A may reach the inside of the main body portion 10.

FIG. 13 is a cross-sectional view showing a state in which the connecting member 40 or the stone tip 1 provided with the connecting member 40A is cut in a plane parallel to the axial direction of the cane 100. When the battery 15 is provided in the stone tip 1, the battery 15 may be provided in the hollow portion 11 or may be provided in another place such as a handle portion of the cane 100. Further, the battery 15, the RFID module 13, and the communication unit 14 are connected by a connecting member 40 such as an electric wire. When the battery 15 is provided in the handle portion of the cane 100, the connecting member 40 may pass through the inside of the cane 100 as shown by reference numeral 1301 in FIG. Alternatively, as shown by reference numeral 1302 in FIG. 13, the connecting member 40A may protrude from the main body portion 10. Further, the battery 15 may be a rechargeable battery or may be charged by using wireless power supply.

FIG. 14 is a cross-sectional view showing a state in which the stone tip 1 provided with the protective portion 41 is cut in a plane parallel to the axial direction of the cane 100. As shown in FIG. 14, the outer edge portion of the cavity portion 11 may be provided with a protective portion 41 that protects the antenna 12, the RFID module 13, and the communication portion 14 so as to cover the antenna 12, the RFID module 13, and the communication unit 14. The protective portion 41 may be formed of, for example, an elastic material.

The invention according to the present disclosure has been described above based on various drawings and examples. However, the invention according to the present disclosure is not limited to each of the above-described embodiments. That is, the invention according to the present disclosure can be variously modified within the scope shown in the present disclosure, and the invention according to the present disclosure also relates to an embodiment obtained by appropriately combining the technical means disclosed in different embodiments. Included in the technical scope. That is, it should be noted that those skilled in the art can easily make various modifications or modifications based on the present disclosure. It should also be noted that these modifications or modifications are within the scope of this disclosure.

1, 1A ~

1G stone tip

10, 10A ~ 10E Main body part 11 Cavity part 13 RFID module (detection part)
14

Communication unit

16, 16A,

16B Outer surface

17, 25

Concave part

18, 24

Convex part

20, 20A to 20G Grounding part 21

Outer edge part

23, 23A, 23B Inner surface 30 Terminal (receiver)
31 Receiver 32 Control 33

Notification

101, 101A Tip (tip)
102 Shaft 200 Information processing system

Claims

A stone tip that can be placed at the tip of a cane
The main body that can be attached to the shaft of the can and
A grounding portion arranged on the outer periphery of the main body portion is provided.
The grounding portion is a stone tip that is detachable from the main body portion.
The grounding portion has an outer edge portion and has an outer edge portion.
The stone tip according to claim 1, wherein the outer edge portion can rotate around the axis of the cane as a rotation axis.
The stone tip according to claim 1 or 2, wherein the grounding portion has an annular or cylindrical portion, and the main body portion is fitted to the inner surface of the annular or tubular portion.
The stone tip according to claim 3, wherein each of the inner surface of the ground contact portion and the outer surface of the main body portion facing the inner surface has an engaging portion that engages with each other.
The inner surface of the grounding portion has either a concave portion or a convex portion.
The outer surface of the main body facing the inner surface has the other of the concave portion or the convex portion.
The stone tip according to claim 3, wherein the convex portion is located in the concave portion.
The one according to any one of claims 3 to 5, wherein the thickness of the end portion of the main body portion on the handle side is larger than the thickness of the region in contact with the ground contact portion in the radial direction of the cane. Stone tip.
The stone tip according to any one of claims 3 to 6, wherein the grounding portion has a portion that covers the entire surface of the main body portion on the grounding side.
The pavement according to any one of claims 1 to 7, wherein the grounding portion is thicker than a portion that does not touch the road surface.
Claims 1 to 8 include a detection unit capable of detecting a detection target and a communication unit capable of transmitting the detection result of the detection unit to an external receiving device inside the main body unit. The stone tip described in any one of the above.
A cane to which the stone tip according to any one of claims 1 to 9 is attached.
An information processing system including the stone tip according to claim 9 and the external receiving device.
The external receiving device includes a receiving unit and a notification unit.
The receiving unit receives the detection result of the detecting unit and receives the detection result.
The information processing system is characterized in that the notification unit notifies a user possessing the external receiving device according to the detection result of the detection unit.