WO2014038393A1 - On/off検出型バックルスイッチ - Google Patents
On/off検出型バックルスイッチ Download PDFInfo
- Publication number
- WO2014038393A1 WO2014038393A1 PCT/JP2013/072501 JP2013072501W WO2014038393A1 WO 2014038393 A1 WO2014038393 A1 WO 2014038393A1 JP 2013072501 W JP2013072501 W JP 2013072501W WO 2014038393 A1 WO2014038393 A1 WO 2014038393A1
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- WO
- WIPO (PCT)
- Prior art keywords
- terminal
- slider
- contact
- case
- movable terminal
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/18—Anchoring devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
- B60R2022/4808—Sensing means arrangements therefor
- B60R2022/4816—Sensing means arrangements therefor for sensing locking of buckle
Definitions
- the present invention relates to a buckle switch that detects attachment / detachment of a tongue plate provided on a seat belt to a buckle body.
- a seat belt device is attached to a seat of an automobile or the like in order to protect an occupant in an emergency such as a collision.
- a buckle device is provided in a seat of an automobile or the like.
- the buckle device is configured such that a latch member that latches the tongue plate is spring-biased in the latch direction, and the latch member is held in a latched state between the tongue plate and the buckle body by a lock member.
- a lamp that the tongue plate and the buckle body are in a latched state, the belt winding force reduction mechanism and the like are controlled, or the airbag ECU (electronic control unit) is controlled.
- a buckle switch for detecting the latch state is provided inside the buckle.
- Patent Document 1 As a prior art related to this type of buckle switch, for example, Patent Document 1 shown below exists.
- the buckle switch there is a type of switch that detects only the contact conduction / open state at the time of attachment / detachment (hereinafter referred to as ON / OFF detection type buckle switch).
- an object of the present invention is to provide an ON / OFF detection type buckle switch that can effectively remove foreign matters at a contact portion.
- the ON / OFF detection type buckle switch of the present invention includes a casing-shaped case, a slider insertion opening provided on the upper surface of the case, a support portion provided on the inner side surface of the case, and a notch at one end of the strip shape.
- a strip-shaped movable terminal With the other end fixed to the inner surface of the case, a strip-shaped movable terminal fixed at one place to the support, and the case through the case's slider insertion port and fixed terminal notch
- the ON / OFF detection type buckle switch of the present invention is configured such that when the slider is not pushed down, the fixed terminal and the movable terminal are in contact with each other so as to allow current to be conducted with the inclined surface of the bent portion of the fixed terminal and the movable terminal as a contact surface. When is pushed down, the fixed terminal and the movable terminal are separated from each other to be in an insulated state.
- FIG. 3 is an exploded perspective view of the ON / OFF detection type buckle switch according to the first embodiment.
- FIG. 2A is a side view of FIG. 2A
- FIG. 2B is a front view
- FIG. 2C is a bottom view.
- FIG. 3 is a perspective view of an ON / OFF detection type buckle switch according to the first embodiment.
- the perspective view which shows the relationship between the terminal pushing part in case an slider is in an initial state, and the notch part of a fixed terminal.
- FIGS. 7A and 7B are diagrams showing a change in contact position between the fixed terminal and the movable terminal in accordance with the operation of the terminal pushing portion, FIG. 7A is a view showing the contact position when the slider is in an initial state, and FIG. 7B is a view showing that the slider is pushed down;
- FIG. 7C is a diagram showing a contact position in a state immediately before the fixed terminal and the movable terminal are separated from each other,
- FIG. 7C is a diagram showing a state in which the slider is completely pushed down and the fixed terminal and the movable terminal are separated, and FIG. The figure which expands and shows the position vicinity.
- FIG. 1 is an exploded perspective view of an ON / OFF detection type buckle switch 1 of this embodiment.
- FIG. 2 is a three-side view of the ON / OFF detection type buckle switch 1 of this embodiment.
- 2A is a side view
- FIG. 2B is a front view
- FIG. 2C is a bottom view.
- FIG. 3 is a perspective view of the ON / OFF detection type buckle switch 1 of this embodiment.
- FIG. 4 is a front view showing a state where the lid 11a of the ON / OFF detection type buckle switch 1 of this embodiment is removed when the slider 12 is in the initial state.
- FIG. 1 is an exploded perspective view of an ON / OFF detection type buckle switch 1 of this embodiment.
- FIG. 2 is a three-side view of the ON / OFF detection type buckle switch 1 of this embodiment.
- 2A is a side view
- FIG. 2B is a front view
- FIG. 2C is a bottom view.
- FIG. 3 is a perspective view
- FIG. 5 is a perspective view showing a relationship between the terminal pushing portion 122 and the notch portion 141 of the fixed terminal 14 when the slider 12 is in the initial state.
- FIG. 6 is a front view showing a state where the lid 11a of the ON / OFF detection type buckle switch 1 of this embodiment is removed when the slider 12 is in the latched state.
- the ON / OFF detection type buckle switch 1 includes a case 11 having a rectangular housing shape.
- the case 11 includes a removable lid 11a and an opening 11b5 that can be opened and closed by the lid 11a. It is comprised by the accommodating part 11b.
- the lid 11a and the accommodating portion 11b may be made of resin such as PBT (polybutylene terephthalate).
- PBT polybutylene terephthalate
- the side surface of the housing portion 11 b facing the lid 11 a is called the longitudinal side surface
- the two side surfaces adjacent to the lid 11 a are called the short side surface
- the remaining surfaces are the housing top surface and the housing portion. Called the bottom surface.
- a spring accommodating portion 11b1 On the inner side of the upper surface of the accommodating portion 11b, there is provided a spring accommodating portion 11b1 having a substantially rectangular tube shape and having an opening on the lower side and two side surfaces.
- a spring position fixing claw 11b1-A is provided at the lower end of the spring accommodating portion 11b1.
- 1st groove part 11b2 is provided in one of the transversal direction inner side surfaces of the accommodating part 11b.
- a square tube-shaped second groove 11b3 having an opening as a groove is provided so that the first groove 11b2 and the grooves face each other.
- the first groove portion 11b2 and the second groove portion 11b3 are members for positioning and fixing the printed circuit board for detecting the resistance value.
- a rectangular bar-shaped support portion 11b4 that supports a movable terminal 15 described later is provided perpendicularly to the inner surface in the longitudinal direction slightly below the second groove portion 11b3. .
- the accommodating portion 11b accommodates a slider 12, a spring 13, a fixed terminal 14, and a movable terminal 15.
- the slider 12 includes a substantially plate-shaped tongue plate contact portion 121 and a substantially round bar-shaped terminal pushing portion 122 provided perpendicular to the lower surface of the tongue plate contact portion 121.
- a flange 123 is provided in the middle of the terminal pushing portion 122.
- the slider 12 may be made of a slippery resin such as POM (polyoxymethylene).
- a rectangular tube-shaped slider insertion port 11c is provided outside the upper surface of the accommodating portion 11b.
- the terminal pressing portion 122 of the slider 12 is inserted into the slider insertion port 11c.
- the lower end of the terminal pushing portion 122 projects through the slider insertion port 11c and the lower end opening of the spring accommodating portion 11b1 and protrudes toward the inside of the case.
- the spring 13 is accommodated in the spring accommodating portion 11b1 of the accommodating portion 11b, and the terminal pushing portion 122 of the slider 12 passes through the lumen of the spring 13.
- the spring 13 is positioned at a position including the terminal pressing portion 122 by the spring accommodating portion 11b1 and the spring position fixing claw 11b1-A.
- the spring 13 may be made of metal such as steel or phosphor bronze.
- the fixed terminal 14 is a thin and thin plate-shaped (strip-shaped) conductor, and the middle is bent in a step shape so as to avoid the second groove 11b3.
- the fixed terminal 14 may be made of a material such as brass or phosphor bronze.
- One end portion of the fixed terminal 14 is bent downward to form a bent portion 14a.
- the bent portion 14a is attached and fixed so as to be exposed to the outside of the side surface facing the lateral side surface in which the first groove portion 11b2 of the accommodating portion 11b is provided.
- a notch 141 is formed at the end of the fixed terminal 14 opposite to the bent portion 14 a.
- the tip of the notch 141 is bent into a hook shape, and the bent portion 142 is in contact with the movable terminal 15.
- the movable terminal 15 is a thin and thin plate-shaped (strip-shaped) conductor, and the middle thereof is bent in a step shape. Similar to the fixed terminal 14, the movable terminal 15 may be made of a material such as brass or phosphor bronze. One end of the movable terminal 15 is bent upward to form a bent portion 15a. The bent portion 15a is attached and fixed slightly below the bent portion 14a so that the fixed terminal 14 and the movable terminal 15 are substantially parallel so as to be exposed outside the same side as the bent portion 14a. Yes. The movable terminal 15 is disposed so as to be placed on the upper surface of the support portion 11b4 described above.
- the end of the movable terminal 15 opposite to the bent portion 15a is bent into a hook shape to form a bent portion 151, and the bent portion 151 is in light contact with the bent portion 142 of the fixed terminal 14.
- the contact between the fixed terminal 14 and the movable terminal 15 is adjusted so as to be positioned on the inclined surface (hereinafter also referred to as a contact surface) of the bent portion.
- the terminal pushing portion 122 does not come into contact with the fixed terminal 14 but hits the upper surface of the movable terminal 15 below and pushes the movable terminal 15 downward.
- the movable terminal 15 functions like a cantilever spring having the support portion 11b4 as a fixed end and the end portion on the bent portion 151 side as a free end as shown in FIG. That is, as shown in FIG. 6, the bent portion 151 of the movable terminal 15 is pushed down by the terminal pushing portion 122 of the slider 12, and its tip sinks downward, so that the bent portion 142 of the fixed terminal 14 and the bent portion of the movable terminal 15 are bent. It is separated from the part 151.
- the fixed terminal can be used when the slider 12 is in the initial state. Since the 14 bent portions 142 and the bent portion 151 of the movable terminal 15 are in contact with each other, a predetermined current value can be detected. On the other hand, when the slider 12 is pushed down by a tongue plate (not shown) and is in a latched state, the bent portion 142 of the fixed terminal 14 and the bent portion 151 of the movable terminal 15 are separated from each other. Therefore, it is possible to determine whether the slider 12 is in the initial state or the latch state depending on whether or not the current value is detected.
- the ON / OFF detection type buckle switch 1 of the present embodiment is provided with the hook-shaped bent portions 142 and 151 on the fixed terminal 14 and the movable terminal 15, and the contacts of both terminals are on the inclined surface (contact surface) of the bent portion. Therefore, with respect to the movement of the end portion of the movable terminal 15 on the free end side in the vertical downward direction, the contact position is changed while the fixed terminal 14 and the movable terminal 15 are in contact with each other. It can be varied greatly.
- the contact surfaces of both terminals are configured to form an angle of approximately 45 ° with respect to the horizontal plane. Should have a certain inclination with respect to the horizontal plane.
- FIG. 7 is a diagram illustrating a change in the contact position between the fixed terminal 14 and the movable terminal 15 due to the operation of the terminal pushing portion 122.
- FIG. 7A is a diagram showing contact positions when the slider 12 is in the initial state.
- FIG. 7B is a diagram showing a contact position in a state immediately before the slider 12 is pushed down and the fixed terminal 14 and the movable terminal 15 are separated from each other.
- FIG. 7C is a diagram showing a state where the slider 12 is completely pushed down and the fixed terminal 14 and the movable terminal 15 are separated from each other.
- FIG. 7D is an enlarged view showing the vicinity of the contact position in FIG. 7B.
- FIG. 7A when the slider 12 is not pushed down, the fixed terminal 14 is in contact with the movable terminal 15 at the first contact 140-1.
- the slider 12 is pushed down and the lower end of the terminal pushing portion 122 pushes the middle of the movable terminal 15, a frictional force is generated at the first contact 140-1 of the fixed terminal 14, and the fixed terminal 14 is slightly moved along with the movable terminal 15. Pulled down.
- the fixed terminal 14 starts to slide on the movable terminal 15.
- the position of the contact is displaced downward.
- the contact between the fixed terminal 14 and the movable terminal 15 is referred to as a second contact 140-2.
- FIG. 7D it is assumed that the first contact 140-1 and the second contact 140-2 are located at a distance x apart. The distance x can also be considered as the distance that the fixed terminal 14 slides on the movable terminal 15.
- the distance x By appropriately setting this distance x, it is possible to effectively remove minute foreign matters (dust, dust, etc.) that have entered the vicinity of the contact. As a result of considering both the size of a general foreign matter and the characteristics of the structure of the ON / OFF detection type buckle switch of this embodiment, the foreign matter can be sufficiently removed by setting the distance x to about 0.14 mm. I understood. In addition, since the foreign matter removal effect can be expected as the distance x increases, the distance x may be 0.14 mm or more.
- the first contact 140-1 and the second contact 140-2 described above can be determined by another method.
- the terminal pushing part 122 When the terminal pushing part 122 is pushed down deeply, the tongue plate is released from the state where the fixed terminal 14 and the movable terminal 15 are separated (latched state), and the terminal pushing part 122 is moved upward by the elastic force of the spring 13. The free end of the movable terminal 15 returns upward due to its own elastic force. In this process, the bent portion 142 of the fixed terminal 14 and the bent portion 151 of the movable terminal 15 come into contact again.
- a contact point between the fixed terminal 14 and the movable terminal 15 at the moment of contact is defined as a second contact point 140-2.
- the position of the contact when the elastic force of the movable terminal 15 is equal to the frictional force at the contact is defined as a first contact 140-1.
- the distance x between the first contact 140-1 and the second contact 140-2 may be 0.14 mm or more as described above.
- the bent terminals 142 and 151 are provided on the fixed terminal 14 and the movable terminal 15 so that the contacts of both terminals are positioned on the slope. Since the fixed terminal 14 and the movable terminal 15 are in contact with each other with respect to the movement of the end of the movable terminal 15 on the free end side in the vertically downward direction, the contact point position is greatly changed. Foreign matter at the contact portion can be effectively removed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Slide Switches (AREA)
- Buckles (AREA)
Abstract
Description
11 ケース
11a 蓋
11b 収容部
11b1 バネ収容部
11b1-A バネ位置固定用爪
11b2 第1溝部
11b3 第2溝部
11b4 支持部
11b5 開口部
11c スライダ挿通口
12 スライダ
121 タングプレート接触部
122 端子押込部
123 鍔
13 バネ
14 固定端子
14a 折曲部
141 切欠部
142 屈曲部
140-1 第1接点
140-2 第2接点
15 可動端子
15a 折曲部
151 屈曲部
Claims (2)
- 筐体形状のケースと、
前記ケースの上面に設けられたスライダ挿通口と、
前記ケースの内側面に設けられた支持部と、
短冊形状の一端に切欠部を備え、他端を前記ケースの内側面に固定された固定端子と、
前記支持部に1ヶ所を固定された短冊形状の可動端子と、
前記ケースのスライダ挿通口および前記固定端子の切欠部を貫通して前記ケース内部に突出し、下方に押し下げられた場合に前記可動端子の端部を押下する端子押込部を備えるスライダと、
前記スライダを上方向に付勢するバネと、
前記固定端子の切欠部及び前記可動端子の自由端側の端部に鉤状の屈曲部とを備え、
前記スライダが押し下げられていない場合に前記固定端子と前記可動端子の屈曲部の斜面を接触面として、前記固定端子と前記可動端子が電流を導通可能に接触し、
前記スライダが押し下げられた場合に前記固定端子と前記可動端子が離間されて絶縁状態となるON/OFF検出型バックルスイッチ。 - 請求項1に記載のON/OFF検出型バックルスイッチであって、
前記スライダが押し下げられていない場合の前記固定端子と前記可動端子の接触箇所を第1接点と呼び、前記スライダが押し下げられ、前記固定端子と前記可動端子とが離間する直前の状態における前記固定端子と前記可動端子の接触箇所を第2接点と呼ぶ場合に、前記第1接点と前記第2接点の距離が0.14mm以上となるON/OFF検出型バックルスイッチ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201380004403.7A CN104039608B (zh) | 2012-09-04 | 2013-08-23 | 导通/断开检测型堵片断流开关 |
DE112013000274.4T DE112013000274T5 (de) | 2012-09-04 | 2013-08-23 | EIN/AUS-Erfassungs-Gurtschlossschalter |
US14/354,291 US9266499B2 (en) | 2012-09-04 | 2013-08-23 | On/off detecting buckle switch |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012-194221 | 2012-09-04 | ||
JP2012194221A JP5871754B2 (ja) | 2012-09-04 | 2012-09-04 | On/off検出型バックルスイッチ |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014038393A1 true WO2014038393A1 (ja) | 2014-03-13 |
Family
ID=50237006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/072501 WO2014038393A1 (ja) | 2012-09-04 | 2013-08-23 | On/off検出型バックルスイッチ |
Country Status (7)
Country | Link |
---|---|
US (1) | US9266499B2 (ja) |
JP (1) | JP5871754B2 (ja) |
KR (1) | KR20140031102A (ja) |
CN (1) | CN104039608B (ja) |
DE (1) | DE112013000274T5 (ja) |
TW (1) | TW201410512A (ja) |
WO (1) | WO2014038393A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5914250B2 (ja) | 2012-08-13 | 2016-05-11 | ホシデン株式会社 | On/off検出型バックルスイッチ |
FR3099633B1 (fr) * | 2019-08-01 | 2021-07-30 | C&K Components Sas | Ensemble comportant un commutateur électrique normalement ouvert et une lame de commande de son changement d’état qui le maintient fermé au repos |
JP7340490B2 (ja) | 2020-04-15 | 2023-09-07 | ホシデン株式会社 | シートベルト着脱検出スイッチ |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH056558U (ja) * | 1991-07-11 | 1993-01-29 | オムロン株式会社 | 接点開閉機構 |
JP2003031094A (ja) * | 2001-07-16 | 2003-01-31 | Nec Tokin Ceramics Corp | リードスイッチ |
JP2005190906A (ja) * | 2003-12-26 | 2005-07-14 | Takata Corp | バックルスイッチおよびこれを備えたバックル |
JP2006347359A (ja) * | 2005-06-16 | 2006-12-28 | Honda Motor Co Ltd | シートベルト装置 |
JP2009240528A (ja) * | 2008-03-31 | 2009-10-22 | Autoliv Development Ab | バックルスイッチ及び車両用シートベルトバックル |
JP2011146298A (ja) * | 2010-01-15 | 2011-07-28 | Chugoku Electric Power Co Inc:The | 電気接点装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US3781497A (en) * | 1972-10-12 | 1973-12-25 | Allied Chem | Seat belt buckle plunger type switch and housing containing belt latch mechanism |
US4015094A (en) * | 1974-02-05 | 1977-03-29 | Irvin Industries, Inc. | Safety seat belt buckle switch with coil spring contact |
JPS63104268A (ja) | 1986-10-21 | 1988-05-09 | Sanyo Electric Co Ltd | 固定ヘツド方式pcm録音再生装置 |
DE20204318U1 (de) * | 2002-03-19 | 2002-08-08 | EAO-ESA-Elektro Zweigniederlassung Auerbach der EAO Lumitas GmbH, 08209 Auerbach | Schalter für ein Gurtschloß |
JP5769639B2 (ja) | 2012-01-11 | 2015-08-26 | ホシデン株式会社 | スライドスイッチ |
JP5769638B2 (ja) | 2012-01-11 | 2015-08-26 | ホシデン株式会社 | スライドスイッチ |
JP5832308B2 (ja) | 2012-01-11 | 2015-12-16 | ホシデン株式会社 | スライドスイッチ |
JP5914250B2 (ja) * | 2012-08-13 | 2016-05-11 | ホシデン株式会社 | On/off検出型バックルスイッチ |
-
2012
- 2012-09-04 JP JP2012194221A patent/JP5871754B2/ja not_active Expired - Fee Related
-
2013
- 2013-07-26 KR KR1020130088677A patent/KR20140031102A/ko not_active Application Discontinuation
- 2013-08-01 TW TW102127628A patent/TW201410512A/zh unknown
- 2013-08-23 US US14/354,291 patent/US9266499B2/en not_active Expired - Fee Related
- 2013-08-23 WO PCT/JP2013/072501 patent/WO2014038393A1/ja active Application Filing
- 2013-08-23 DE DE112013000274.4T patent/DE112013000274T5/de not_active Withdrawn
- 2013-08-23 CN CN201380004403.7A patent/CN104039608B/zh not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH056558U (ja) * | 1991-07-11 | 1993-01-29 | オムロン株式会社 | 接点開閉機構 |
JP2003031094A (ja) * | 2001-07-16 | 2003-01-31 | Nec Tokin Ceramics Corp | リードスイッチ |
JP2005190906A (ja) * | 2003-12-26 | 2005-07-14 | Takata Corp | バックルスイッチおよびこれを備えたバックル |
JP2006347359A (ja) * | 2005-06-16 | 2006-12-28 | Honda Motor Co Ltd | シートベルト装置 |
JP2009240528A (ja) * | 2008-03-31 | 2009-10-22 | Autoliv Development Ab | バックルスイッチ及び車両用シートベルトバックル |
JP2011146298A (ja) * | 2010-01-15 | 2011-07-28 | Chugoku Electric Power Co Inc:The | 電気接点装置 |
Also Published As
Publication number | Publication date |
---|---|
TW201410512A (zh) | 2014-03-16 |
CN104039608A (zh) | 2014-09-10 |
US9266499B2 (en) | 2016-02-23 |
DE112013000274T5 (de) | 2014-09-04 |
KR20140031102A (ko) | 2014-03-12 |
JP5871754B2 (ja) | 2016-03-01 |
CN104039608B (zh) | 2016-08-24 |
US20140262706A1 (en) | 2014-09-18 |
JP2014046901A (ja) | 2014-03-17 |
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