WO2016132868A1 - 触覚センサの被覆構造及び触覚センサ - Google Patents
触覚センサの被覆構造及び触覚センサ Download PDFInfo
- Publication number
- WO2016132868A1 WO2016132868A1 PCT/JP2016/052780 JP2016052780W WO2016132868A1 WO 2016132868 A1 WO2016132868 A1 WO 2016132868A1 JP 2016052780 W JP2016052780 W JP 2016052780W WO 2016132868 A1 WO2016132868 A1 WO 2016132868A1
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- WIPO (PCT)
- Prior art keywords
- sensor
- layer
- tactile sensor
- inner layer
- covering
- Prior art date
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
- G01D11/245—Housings for sensors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J13/00—Controls for manipulators
- B25J13/08—Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
- B25J13/081—Touching devices, e.g. pressure-sensitive
- B25J13/084—Tactile sensors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J15/00—Gripping heads and other end effectors
- B25J15/0033—Gripping heads and other end effectors with gripping surfaces having special shapes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/26—Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload
Definitions
- the present invention relates to a tactile sensor covering structure and a tactile sensor, and more specifically, sufficient adhesion between the sensor body and the covering layer can be secured without providing an adhesive layer, and sensor misdetection associated with the formation of the covering layer can be achieved.
- the present invention relates to a tactile sensor covering structure and a tactile sensor that are unlikely to occur.
- sensors have been actively developed for the purpose of detecting the pressure of the human body. For these, it is necessary to directly measure each part of the hand, foot, and body, and a sensor device whose surface is covered with a flexible coating layer is required.
- pressure-sensitive rubber sensors and capacitive sensors are known as sensors for detecting the pressure of the human body.
- the sensor main body and the coating layer covering the surface thereof the sensor main body and the coating layer are separately molded and then bonded using an adhesive (Patent Document 1).
- the sensor body and the cover layer are bonded using an adhesive as in the past, the sensor body is under a load due to internal stress when the adhesive is cured, which may cause sensor misdetection. It has become one. For this reason, it was considered that the sensor main body and the covering layer were bonded using an adhesive tape, but it was difficult to apply when the sensor main body had an uneven shape.
- the present invention can sufficiently secure the adhesion between the sensor main body and the coating layer without providing an adhesive layer, and also has a tactile sensor coating structure that does not cause a sensor false detection due to the formation of the coating layer. It is an object to provide a tactile sensor.
- a tactile sensor covering structure in which a covering layer made of an elastic body is formed on the sensor body, The coating layer is composed of at least two layers of an outer layer arranged on the outermost side and an inner layer arranged in contact with the sensor main body and having higher adhesiveness and lower hardness than the outer layer.
- a tactile sensor covering structure wherein the sensor body is integrally formed with the sensor body. 2. The sensor body is installed on the upper surface of the base material, and the coating layer is covered over the sensor body and the base material, and the lower surface of the base material is not covered by the inner layer. 2. The tactile sensor covering structure according to 1 above. 3. 3. 3.
- the tactile sensor covering structure according to claim 1 or 2 wherein the inner layer has a Shore A hardness of 0 to 40 degrees, and the outer layer has a Shore A hardness of 20 to 90 degrees. 4). 4.
- a tactile sensor comprising the tactile sensor covering structure according to any one of 1 to 4 above.
- the adhesive structure between the sensor body and the covering layer can be sufficiently secured without providing an adhesive layer, and the tactile sensor covering structure is free from the possibility of erroneous sensor detection due to the formation of the covering layer.
- a tactile sensor can be provided.
- the top view of the tactile sensor which shows 1st Embodiment of the covering structure of the tactile sensor which concerns on this invention Sectional view along line (ii)-(ii) in FIG.
- FIG. 1 is a plan view of a tactile sensor showing a first embodiment of a tactile sensor covering structure according to the present invention
- FIG. 2 is a cross-sectional view taken along line (ii)-(ii) in FIG.
- the tactile sensor 1 has a sensor body 2 installed on the upper surface of a base material 4, and a covering layer 3 made of an elastic body is integrally formed so as to cover the base material 4 and the sensor body 2 integrally.
- the sensor body 2 includes a plurality of sensor elements 22, such as pressure-sensitive sensors and capacitive sensors, arranged in a line along the length direction of the tactile sensor 1 on an FPC (flexible printed circuit board) 21.
- the sensor element 22 is installed on the upper surface of the base material 4 made of resin, metal or the like with the sensor element 22 oriented upward.
- the covering layer 3 has a two-layer structure of an inner layer 31 and an outer layer 32 disposed so as to cover the outer side of the inner layer 31, and the inner layer 31 is disposed so as to be in contact with the sensor body 2. .
- the inner layer 31 is provided so as to cover the upper surface of the base material 4 including the upper surface of the sensor body 2 and the side surface of the base material 4 on the front end side of the base material 4 formed to be wide. ing. However, the inner layer 31 is formed so as to be flush with the lower surface of the substrate 4. Therefore, the lower surface of the substrate 4 (the surface opposite to the surface on which the sensor body 2 is installed) is not covered with the inner layer 31.
- the outer layer 32 constitutes the outermost layer of the coating layer 3, covers the outer surface of the inner layer 31, and wraps around the lower surface of the base material 4 to cover the lower surface of the base material 4. Is provided.
- the outer layer 32 has a function of protecting the sensor body 2 provided with the FPC 21 and the sensor element 22.
- the coating layer 3 also wraps around the lower surface side of the base material 4 and is integrally molded, there is no possibility that the coating layer 3 is peeled off from the base material 4.
- Both the inner layer 31 and the outer layer 32 are made of a flexible elastic body, but the elastic body constituting the inner layer 31 is made of an elastic body having higher adhesiveness and lower hardness than the elastic body constituting the outer layer 32.
- the elastic body constituting the outer layer 32 preferably has a higher crosslink density, lower adhesiveness and higher hardness than the elastic body constituting the inner layer 31.
- both the inner layer 31 and the outer layer 32 are integrally formed across the sensor body 2 and the base material 4 by casting.
- Cast molding is to form the coating layer 3 by setting the integrated body in which the sensor body 2 is installed on the base material 4 in the molding die, and then pouring and solidifying the raw material of the coating layer 3.
- an integrated body in which the sensor body 2 is installed on the base material 4 is set in a molding die for the inner layer 31, and the raw material of the inner layer 31 is poured and solidified.
- the lower surface of the base material 4 is brought into contact with the inner wall surface of the mold so that the raw material of the inner layer 31 does not enter the lower surface side of the base material 4.
- the integrated product in which the inner layer 31 is integrally formed is taken out of the mold, and then set in the mold for the outer layer 32.
- the lower surface of the base material 4 is separated from the inner wall surface of the mold by the thickness of the outer layer 32 so that the raw material of the outer layer 32 also wraps around the lower surface of the base material 4.
- the raw material of the outer layer 32 is poured and solidified, and the outer layer 32 is integrally formed on the outer surface of the inner layer 31.
- the sensor body 2 and the base material 4 and the coating layer 3 are closely integrated by the adhesive force of the inner layer 31 having higher adhesiveness than the outer layer 32. Further, the inner layer 31 and the outer layer 32 are also closely integrated by the adhesive force of the inner layer 31. For this reason, the adhesiveness between the two can be sufficiently ensured without using an adhesive for the integration of the sensor body 2 or the base material 4 and the coating layer 3. Since no adhesive is used, there is no risk of false detection due to internal stress during curing of the adhesive.
- the coating layer 3 is integrally formed by casting so as to be in contact with the sensor body 2 by the inner layer 31 having a lower hardness than the outer layer 32. Therefore, even if the surface of the sensor body 2 has an uneven shape, the sensor body 2 can be closely adhered along the uneven shape. For this reason, even if the sensor body 2 has a concavo-convex shape, it is possible to sufficiently ensure the adhesiveness with the coating layer 3, and the load (pressure) acting on the outer layer 32 is applied to each sensor element via the inner layer 31. 22 can be reliably acted on. In addition, the bonding work and the assembling work when combining separate objects are not required, and the number of work steps can be reduced.
- the cast molding can be performed at a low temperature and a low pressure, and does not become a high temperature and a high pressure as in compression molding or injection molding, and thus may cause false detection or damage due to the formation of the coating layer 3.
- the cast molding can be performed at a low temperature and a low pressure, and does not become a high temperature and a high pressure as in compression molding or injection molding, and thus may cause false detection or damage due to the formation of the coating layer 3.
- the inner layer 31 is not covered with the lower surface of the base material 4. For this reason, the load (pressure) applied from the upper surface side of the sensor body 2 when the lower surface side of the base material 4 is protected and the tactile sensor 1 is installed so that the lower surface side of the base material 4 is supported by the base. ) Can be received without causing the substrate 4 to sink and act on the sensor element 22. Therefore, detection with higher accuracy can be performed. Moreover, since the usage-amount of the inner layer 31 can be reduced, material cost can be suppressed and cost reduction can also be achieved.
- the specific hardness of the elastic body used for the coating layer 3 is preferably 0 to 40 degrees, more preferably 0 to 20 degrees in Shore A hardness for the inner layer 31.
- the outer layer 32 preferably has a Shore A hardness of 20 ° to 90 °, more preferably 40 ° to 60 °, under a condition that the hardness is higher than that of the inner layer 31. If the hardness of the inner layer 31 and the outer layer 32 is within this range, it is possible to satisfactorily achieve both integration of the sensor body 2 and the base material 4 with the covering layer 3 and ensuring of detection accuracy.
- the hardness of each of the layers 31 and 32 can be adjusted by appropriately selecting the material of the elastic body to be used and appropriately selecting the mixing ratio of the main agent and the curing agent when the elastic body is molded.
- the specific elastic body used for the coating layer 3 is appropriately selected according to the shape, properties, etc. of the object to be detected, and is not particularly limited, but a soft rubber or resin material can be used. . Specific examples include rubber, silicone, urethane, and the like.
- the inner layer 31 and the outer layer 32 may be made of the same material or different materials as long as they have different adhesiveness and hardness. From the viewpoint of imparting high adhesiveness between the inner layer 31 and the outer layer 32, the inner layer 31 and the outer layer 32 are preferably made of the same material.
- Specific thicknesses of the inner layer 31 and the outer layer 32 can be optimized as appropriate depending on the size, shape, cross-sectional shape, quantity, arrangement, detection target, detection method, and the like of the FPC 21 disposed below the inner layer 31. However, it is preferable to form the outer layer 32 thinner than the inner layer 31 from the viewpoint of allowing the sensor element 22 to detect the load (pressure) acting on the outer layer 32 through the inner layer 31.
- the inner layer 31 is preferably 1.0 mm to 20.0 mm, more preferably 2.0 mm to 10.0 mm.
- the outer layer 32 is preferably 0.2 mm to 2.0 mm, more preferably 0.3 mm to 1.0 mm under the condition that it is thinner than the inner layer 31. If the thicknesses of the inner layer 31 and the outer layer 32 are within this range, it is possible to satisfactorily achieve both integration of the sensor main body 2 and the base material 4 with the covering layer 3 and ensuring of detection accuracy.
- an integrated object in which a sensor body 2 in which a plurality of sensor elements 22 are arranged in a row on an FPC 21 is installed on a substrate 4.
- the outer dimensions are formed into a width of 20 mm, a height of 30 mm, and a thickness of 10 mm.
- the inner layer 31 of the covering layer 3 of the obtained tactile sensor 1 has higher adhesiveness than the outer layer 32, and the sensor body 2 and the base material 4 and the inner layer 31 of the covering layer 3 are closely integrated with no gap, It was confirmed that sufficient adhesion was secured with the outer layer 32 being intimately integrated with each other, in which no peeling was observed.
- FIG. 3 is a plan view of the tactile sensor showing a second embodiment of the tactile sensor covering structure according to the present invention
- FIG. 4 is a cross-sectional view taken along line (iv)-(iv) in FIG. It is. Since the site
- the tactile sensor 10 is the same as the tactile sensor 1 described above in that the covering layer 3 has a two-layer structure of an inner layer 31 and an outer layer 32. However, the sensor body 2 installed on the substrate 4 is placed on the FPC 21. The difference is that a plurality of sensor elements 22 are arranged in a grid pattern vertically and horizontally.
- the covering layer 3 is integrally formed across the sensor body 2 and the substrate 4 so that the inner layer 31 is in contact with the sensor body 2.
- the covering structure of the tactile sensor 1 and the tactile sensor 1 can be obtained by the covering structure of the tactile sensor 10 and the tactile sensor 10.
- the lower surface side of the base material 4 is not covered with the inner layer 31, and only the outer layer 32 constituting the outermost layer wraps the outer side of the inner layer 31 and the lower surface side of the base material 4. Since it is integrally molded, there is no possibility that the coating layer 3 is peeled off from the substrate 4 as in the case of the touch sensor 1. In addition, it is possible to perform detection with higher accuracy while suppressing the sinking of the base material 4, and it is possible to reduce the cost by reducing the amount of use of the inner layer 31.
- a sensor body 2 in which a plurality of sensor elements 22 are arranged in a grid pattern on the FPC 21 in a vertical and horizontal direction is formed on a base material 4.
- the external dimensions of the installed unitary object are formed in a square shape of 100 mm ⁇ 100 mm.
- a tactile sensor in which a 5 mm-thick inner layer 31 made of a urethane material having a hardness of 0 degrees is integrally formed as a coating layer 3 by casting, and a 1 mm-thick outer layer 32 made of a urethane material having a hardness of 50 degrees is integrally formed on the outside thereof. 10 was produced.
- the inner layer 31 had higher adhesiveness than the outer layer 32, and the sensor main body 2 and the base material 4 and the inner layer 31 of the coating layer 3 were closely integrated with no gap. Further, the inner layer 31 and the outer layer 32 were also closely integrated, and no peeling was observed, and it was confirmed that sufficient adhesion was ensured.
- the covering layer 3 of the tactile sensors 1 and 10 described above has a two-layer structure of the inner layer 31 and the outer layer 32, one or two or more are provided between the inner layer 31 and the outer layer 32 as long as the effects of the present invention are not impaired.
- a layer made of another elastic body may be integrally formed by casting.
- the coating layer 3 only needs to be coated on at least the upper surface of the sensor body 2, and does not necessarily have to be formed from the upper surface of the sensor body 2 to the lower surface side of the substrate 4.
- planar shape of the sensor body 2, the arrangement form of the sensor elements 22, and the shape of the base material 4 are not limited to the aspects of the tactile sensors 1 and 10 described above, and various planar shapes, arrangement forms and shapes can do.
- the tactile sensor covering structure and the tactile sensor according to the present invention include a body pressure distribution sensor in the medical and nursing field, a nursing robot arm, a seating authentication system for a vehicle seat, and the like. It can be preferably applied to.
- Tactile sensor 2 Sensor body 21: FPC 22: Sensor element 3: Coating layer 31: Inner layer 32: Outer layer 4: Base material
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Description
前記被覆層は、最も外側に配置される外層と、前記センサ本体に接して配置され、前記外層よりも粘着性が高く且つ硬度が低い内層との少なくとも2層からなると共に、注型成形によって前記センサ本体に一体成形されていることを特徴とする触覚センサの被覆構造。
2.前記センサ本体は基材の上面に設置されており、前記被覆層は、前記センサ本体と前記基材とに亘って被覆されていると共に、前記基材の下面は前記内層によって被覆されていないことを特徴とする前記1記載の触覚センサの被覆構造。
3.前記内層は、ショアA硬度が0度~40度であり、前記外層は、ショアA硬度が20度~90度であることを特徴とする前記1又は2記載の触覚センサの被覆構造。
4.前記内層の厚さは、1.0mm~20.0mmであり、前記外層の厚さは、0.2mm~2.0mmであることを特徴とする前記1、2又は3記載の触覚センサの被覆構造。
5.前記1~4の何れかに記載の触覚センサの被覆構造を備えてなることを特徴とする触覚センサ。
図1、図2と同一符号の部位は同一構成の部位を示しているため、それらの説明は上記説明を援用し、ここでは省略する。
2:センサ本体
21:FPC
22:センサ素子
3:被覆層
31:内層
32:外層
4:基材
Claims (5)
- センサ本体に弾性体からなる被覆層を形成した触覚センサの被覆構造であって、
前記被覆層は、最も外側に配置される外層と、前記センサ本体に接して配置され、前記外層よりも粘着性が高く且つ硬度が低い内層との少なくとも2層からなると共に、注型成形によって前記センサ本体に一体成形されていることを特徴とする触覚センサの被覆構造。 - 前記センサ本体は基材の上面に設置されており、前記被覆層は、前記センサ本体と前記基材とに亘って被覆されていると共に、前記基材の下面は前記内層によって被覆されていないことを特徴とする請求項1記載の触覚センサの被覆構造。
- 前記内層は、ショアA硬度が0度~40度であり、前記外層は、ショアA硬度が20度~90度であることを特徴とする請求項1又は2記載の触覚センサの被覆構造。
- 前記内層の厚さは、1.0mm~20.0mmであり、前記外層の厚さは、0.2mm~2.0mmであることを特徴とする請求項1、2又は3記載の触覚センサの被覆構造。
- 請求項1~4の何れかに記載の触覚センサの被覆構造を備えてなることを特徴とする触覚センサ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016543096A JPWO2016132868A1 (ja) | 2015-02-17 | 2016-01-29 | 触覚センサの被覆構造及び触覚センサ |
CN201680003492.7A CN107110724A (zh) | 2015-02-17 | 2016-01-29 | 触觉传感器的被覆结构及触觉传感器 |
KR1020177012718A KR102053855B1 (ko) | 2015-02-17 | 2016-01-29 | 촉각 센서의 피복 구조 및 촉각 센서 |
US15/518,749 US10584983B2 (en) | 2015-02-17 | 2016-01-29 | Cover structure of tactile sensor and tactile sensor |
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JP2015-028922 | 2015-02-17 | ||
JP2015028922 | 2015-02-17 |
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PCT/JP2016/052780 WO2016132868A1 (ja) | 2015-02-17 | 2016-01-29 | 触覚センサの被覆構造及び触覚センサ |
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US (1) | US10584983B2 (ja) |
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KR (1) | KR102053855B1 (ja) |
CN (1) | CN107110724A (ja) |
TW (1) | TWI668417B (ja) |
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CN111829631B (zh) * | 2019-04-15 | 2022-04-12 | 北京万集科技股份有限公司 | 整车式汽车衡系统 |
EP3981557A4 (en) * | 2019-06-05 | 2022-08-03 | Sony Group Corporation | SUPPORT DEVICE |
CN112097818B (zh) * | 2020-09-28 | 2022-03-08 | 中北大学 | 一种仿生抗冲击传感器封装结构及其制作方法 |
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2016
- 2016-01-29 CN CN201680003492.7A patent/CN107110724A/zh active Pending
- 2016-01-29 JP JP2016543096A patent/JPWO2016132868A1/ja active Pending
- 2016-01-29 US US15/518,749 patent/US10584983B2/en not_active Expired - Fee Related
- 2016-01-29 KR KR1020177012718A patent/KR102053855B1/ko active IP Right Grant
- 2016-01-29 WO PCT/JP2016/052780 patent/WO2016132868A1/ja active Application Filing
- 2016-02-16 TW TW105104482A patent/TWI668417B/zh active
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Publication number | Publication date |
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CN107110724A (zh) | 2017-08-29 |
US10584983B2 (en) | 2020-03-10 |
JPWO2016132868A1 (ja) | 2017-11-24 |
US20170343394A1 (en) | 2017-11-30 |
TW201643395A (zh) | 2016-12-16 |
KR20170097000A (ko) | 2017-08-25 |
KR102053855B1 (ko) | 2019-12-09 |
TWI668417B (zh) | 2019-08-11 |
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