US3745861A - Plug holding socket - Google Patents
Plug holding socket Download PDFInfo
- Publication number
- US3745861A US3745861A US00167660A US3745861DA US3745861A US 3745861 A US3745861 A US 3745861A US 00167660 A US00167660 A US 00167660A US 3745861D A US3745861D A US 3745861DA US 3745861 A US3745861 A US 3745861A
- Authority
- US
- United States
- Prior art keywords
- plug
- holding
- spring
- stage line
- embracing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 239000012212 insulator Substances 0.000 claims description 14
- 241000905957 Channa melasoma Species 0.000 description 1
- 101150054830 S100A6 gene Proteins 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/02—Arrangements for handling screws or nuts
- B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
- B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
- B25B23/105—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit
- B25B23/108—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit the driving bit being a Philips type bit, an Allen type bit or a socket
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/48—Spanners; Wrenches for special purposes
- B25B13/483—Spanners; Wrenches for special purposes for spark plugs
Definitions
- ABSTRACT A plug holding socket comprising a hollow body and a housing means which includes a spring member for elastically holding an insulation part of plug.
- the plug holding socket heretofore used comprises a housing connected integrally to a hollow body which accomodates a rubber holder for elastically embracing the insulation part of the plug.
- the rubber member is usually worn out due to the repeative use at the elevated temperature and in an oily environment and finally the holding efficacy is destroyed. Further, the process for manufacturing the plug holding socket of this type is cumbersome and therefore the product is comperatively expensive.
- the socket at its housing accomodates therein a spring means for elastically holding the insulation part of the plug.
- the principal object of the present invention is, therefore, to provide a plug holding socket comprising a hollow body and a housing which accomodates therein a spring means for holding the insulation part of the plug.
- the spring means comprises a substantially circular fitting member to be fitted into a groove provided on an inner wall surface of the housing and two plug embracing coils of smaller diameters than the fitting member extending integrally and symmetrically from the said fitting member.
- the plug insulator is held in a more stable manner than the frust-conical spring means hereinafter described.
- Another object of the present invention is to provide a plug holding socket including a hollow body and a housing which accomodates therein a spring holding means comprising a substantially circular fitting member and two plug embracing coils of smaller diameter than said fitting member and extending integrally and symmetrically therefrom.
- the plug embracing coils may be preferably formed of an elliptical shape for extending a size allowance limit of the plug insulator to be held by the said embracing coils for convenient use in various commercially available plugs.
- a further object of the present invention is to provide a plug holding socket including a hollow body and a housing which accomodates therein a spring holding means comprising a substantially circular fitting member and two plug embracing coils of smaller diameter than said fitting member and extending integrally and symmetrically therefrom in an elliptical shape which extends a size allowance limit of the plug insulator to be held by the said plug embracing coils.
- the spring means is constructed by a substantially frust-conical coil having three stages wherein an end portion of the bottom stage line is raised to bear the middle stage line externally whereas an end portion of the top stage line plug holding socket is bent downwardly to internally limit the movement of the middle stage line.
- Still a further object of the present invention is to provide a plug holding socket including a hollow body and a housing which accomodates therein a spring holding means comprising a substantially frost-conical coil having three stages wherein an end portion of the bottom stage line is raised to bear the middle stage line externally whereas an end portion of the top stage line is bent downwardly to internally limit the movement of the middle stage line.
- the spring means is formed of a substantially circular washer plate which is provided therein two or more raised holding petal members which are somewhat bent outwardly at their top portions to provide a constricted portion for embracing the insulation part of the plug to be held.
- a further object of the present invention is to provide a plug holding socket including a hollow body and a housing which accomodates therein a spring holding means comprising a substantially circular washer plate which is provided therein two or more raised holding petal members somewhat bent outwardly to provide a constricted portion for embracing the insulation part of the plug.
- the plug insulator holding petal members are preferably constructed to have different heights in an alternate relation and the petal members of different heights are somewhat bent outwardly at their top portions to form two parallel constrictions for embracing the plug insulator in a stable manner.
- a plug holding socket including a hollow body and a housing which accomodates therein a spring holding means comprising a substantially circular washer plate which is provided therein with a number of raised holding petal members of different heights in an alternate relation and the petal members are somewhat bent outwardly at their top portions to form two parallel constrictions for embracing the plug insulator in a stable manner.
- FIG. I is a fragmentarily enlarged elevation in partially sectioned of the plug holding socket with the spring means of one embodiment in accordance with the present invention
- FIG. 2 is a perspective view of the spring means of the embodiment shown in FIG. 11;
- FIG. 3 is a perspective view of the spring means of the second embodiment in accordance with the present invention.
- FIG. 4 is a fragmentarily enlarged elevation in partially sectioned of the plug holding socket with the spring means of the second embodiment shown in FIG.
- FIG. 5 is a side view of the spring means of the third embodiment in accordance with the present invention.
- FIG. 6A is a plan view of the spring means of the fourth embodiment in accordance with the present invention.
- FIG. 6B is a cross sectional view taken along the line BB of the spring means of FIG. 6A;
- FIG. 7 is a fragmentarily enlarged elevation in partially sectioned of the plug holding socket with the spring means of FIG. 6A;
- FIG. 8 is a fragmentarily enlarged elevation in partially sectioned of the plug holding socket with the spring means of FIG. 1 but holding the insulation part of the plug.
- a socket wrench 10 which is comprised of a hollow body 12 provided integrally with a housing 14 of hexagonal shape having a room 16 communicating to a hollow path 18 of smaller diameter than that of the room 16.
- the room 16 is interiorly provided with a groove 20 at the corner portion in abutment with a stepped portion 22 formed along the demarcation line between the hollow path 18 and the room 16.
- several point projections may be provided on the inner wall surface of the room 16 in abutment with the stepped portion 22.
- the spring means 24 shown in perspective view comprises a substantially circular fitting line 26 and two plug embracing coils 28 of smaller diameter than that of the fitting line 26 which extends integrally and symmetrically from the said fit ting line.
- the plug embracing coils 28 are preferably formed of a somewhat elliptical shape so that a sized allowance limit of the plug insulator is considerably extended for convenient use in the commercially available plugs of various sizes.
- the plug holding member of another embodiment in accordance with the present invention comprises a substantially frust-conical coil 30 having at lesat three stages wherein an end portion 32 of the bottom stage line 34 is raised to bear the middle stage line 36 externally and an end portion 38 of the top stage line 40 is bent downwardly to internally limit the movement of the middle stage line 36 on the insertion operation of the plug. That is, the plug insulator is inserted from the bottom stage line 34 through the middle stage line 36 toward the top stage line 40 with movements of the bottom stage line 34 and the middle stage line 36 caused by friction between the bottom stage line 34 and the surface of the insulator.
- the movements of these lines are limited by the end portions 32 and 38 respectively as mentioned above, the
- the holding action of the plug may also be attained by a mere frust-conical coil spring free from the end portions 32 and 38 although some undesired returning action of the plug due to the movements of the bottom and middle lines across the top stage line can be seen when the friction between the bottom stage line 34 and the surface of the insulator is comparatively strict.
- thjeplug holding member comprises a substantially hexagonal washer plate 41 which is provided in the plate with a number of raised holding petal members 42 having different heights in alternate relation and a group of the taller petal members 44 and a group of the shorter petal members 46 are both somewhat bent outwardly to form two constrietions in parallel which support the plug insulator in a stable manner similar to the spring means 24 as best shown in FIGS. 1 and 2.
- the washer plate is further provided with a number of seat sections 48 adapted to make a rigid engagement with the inner wall surface of the housing 14 in a position in abutment with the stepped portion 22.
- the groove for securing the spring means is not required as can be seen from FIG. 7.
- the above washer plate with the holding spring means may be formed by a suitable punching operation with considerably low cost.
- a plug-holding socket comprising a hollow body and a housing which accommodates therein a springholding means for an insulation part of the plug, said spring-holding means comprising a substantially circular fitting member and two plug-embracing coils of smaller diameter than said fitting member and extending integrally and symmetrically therefrom in an elliptical shape for extension of a size allowance limit of the plug insulator to be held by the said plug-embracing coils.
- a plug-holding socket comprising a hollow body and a housing which accommodates therein a springholding means for an insulation part of the plug, said spring-holding means comprising a substantially circular fitting member and two plug-embracing coils of smaller diameter than said fitting member and extending integrally and symmetrically therefrom, said springholding means further comprising a substantially frusto-conical coil having three stage lines wherein an end portion of the bottom stage line is raised to bear the middle stage line externally whereas an end portion of the top stage line is bent downwardly to interiorly support the middle stage linc.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Spark Plugs (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
A plug holding socket comprising a hollow body and a housing means which includes a spring member for elastically holding an insulation part of plug.
Description
0 United States Patent 1191 [111 3,745,861 Totsu et al. July 17, 1973 [5 PLUG HOLDING SOCKET [56] References Cited [76] Inventors: Katsuyuki Totsu, No. 04-7, UNITED STATES PATENTS Oshlage, sumida-ku, 2,304,271 12 1942 Merriman et al. 81/125 Tokyo; N0b0ru Molifllji, No. 5-1 82, 2,320,044 5/l943 Merriman 81/125 Tsukamoto-cho, Higash,
Yodogawaku, Osaka, both of J apan Filed: July 30, 1971 Appl. No.: 167,660
Foreign Application Priority Data Primary Examiner-Othell M. Simpson Assistant Examiner-James G. Smith All0rney-lrvin S. Thompson and Robert J. Patch l 57] ABSTRACT A plug holding socket comprising a hollow body and a housing means which includes a spring member for elastically holding an insulation part of plug.
2 Claims, 9 Drawing Figures PAIENTEDJUL I 1 W5 INVENTORS KAT SU YUKI TOTSU NOBORU MORIFUJI 1 PLUG HOLDING SOCKET BACKGROUND OF THE INVENTION The present invention relates to a for the wrench.
The plug holding socket heretofore used comprises a housing connected integrally to a hollow body which accomodates a rubber holder for elastically embracing the insulation part of the plug. However, the rubber member is usually worn out due to the repeative use at the elevated temperature and in an oily environment and finally the holding efficacy is destroyed. Further, the process for manufacturing the plug holding socket of this type is cumbersome and therefore the product is comperatively expensive.
SUMMARY OF THE INVENTION It is a general object of the present invention to obviate the above disadvantages and to provide a novel plug holding socket which enables to keep the holding effi' cacy for an extended period and may be simply manu factured at reduced cost.
In accordance with the present invention, the socket at its housing accomodates therein a spring means for elastically holding the insulation part of the plug.
The principal object of the present invention is, therefore, to provide a plug holding socket comprising a hollow body and a housing which accomodates therein a spring means for holding the insulation part of the plug.
In one aspect of the present invention, the spring means comprises a substantially circular fitting member to be fitted into a groove provided on an inner wall surface of the housing and two plug embracing coils of smaller diameters than the fitting member extending integrally and symmetrically from the said fitting member.
In accordance with the two plug embracing coils symmetrically arranged, the plug insulator is held in a more stable manner than the frust-conical spring means hereinafter described.
Another object of the present invention is to provide a plug holding socket including a hollow body and a housing which accomodates therein a spring holding means comprising a substantially circular fitting member and two plug embracing coils of smaller diameter than said fitting member and extending integrally and symmetrically therefrom.
The plug embracing coils may be preferably formed of an elliptical shape for extending a size allowance limit of the plug insulator to be held by the said embracing coils for convenient use in various commercially available plugs.
A further object of the present invention is to provide a plug holding socket including a hollow body and a housing which accomodates therein a spring holding means comprising a substantially circular fitting member and two plug embracing coils of smaller diameter than said fitting member and extending integrally and symmetrically therefrom in an elliptical shape which extends a size allowance limit of the plug insulator to be held by the said plug embracing coils.
In another aspect of the present invention, the spring means is constructed by a substantially frust-conical coil having three stages wherein an end portion of the bottom stage line is raised to bear the middle stage line externally whereas an end portion of the top stage line plug holding socket is bent downwardly to internally limit the movement of the middle stage line.
Still a further object of the present invention is to provide a plug holding socket including a hollow body and a housing which accomodates therein a spring holding means comprising a substantially frost-conical coil having three stages wherein an end portion of the bottom stage line is raised to bear the middle stage line externally whereas an end portion of the top stage line is bent downwardly to internally limit the movement of the middle stage line.
In a further aspect of the present invention, the spring means is formed of a substantially circular washer plate which is provided therein two or more raised holding petal members which are somewhat bent outwardly at their top portions to provide a constricted portion for embracing the insulation part of the plug to be held.
Yet a further object of the present invention is to provide a plug holding socket including a hollow body and a housing which accomodates therein a spring holding means comprising a substantially circular washer plate which is provided therein two or more raised holding petal members somewhat bent outwardly to provide a constricted portion for embracing the insulation part of the plug.
It has further been appreciated that the plug insulator holding petal members are preferably constructed to have different heights in an alternate relation and the petal members of different heights are somewhat bent outwardly at their top portions to form two parallel constrictions for embracing the plug insulator in a stable manner.
It is, therefore, the other object of the present invention to provide a plug holding socket including a hollow body and a housing which accomodates therein a spring holding means comprising a substantially circular washer plate which is provided therein with a number of raised holding petal members of different heights in an alternate relation and the petal members are somewhat bent outwardly at their top portions to form two parallel constrictions for embracing the plug insulator in a stable manner.
Other objects and advantages will become apparent from a consideration of the following detailed description taken in connection with the accompanying drawings wherein satisfactory embodiments of the invention are shown. However, it will be understood that the invention is not limited to the details disclosed but includes all such variations and modifications as fall within the spirit of the invention and the scope of the appended claims.
BRIEF DESCRIPTION OF THE DRAWINGS In the drawings:
FIG. I is a fragmentarily enlarged elevation in partially sectioned of the plug holding socket with the spring means of one embodiment in accordance with the present invention;
FIG. 2 is a perspective view of the spring means of the embodiment shown in FIG. 11;
FIG. 3 is a perspective view of the spring means of the second embodiment in accordance with the present invention;
FIG. 4 is a fragmentarily enlarged elevation in partially sectioned of the plug holding socket with the spring means of the second embodiment shown in FIG.
FIG. 5 is a side view of the spring means of the third embodiment in accordance with the present invention;
FIG. 6A is a plan view of the spring means of the fourth embodiment in accordance with the present invention;
FIG. 6B is a cross sectional view taken along the line BB of the spring means of FIG. 6A;
FIG. 7 is a fragmentarily enlarged elevation in partially sectioned of the plug holding socket with the spring means of FIG. 6A; and
FIG. 8 is a fragmentarily enlarged elevation in partially sectioned of the plug holding socket with the spring means of FIG. 1 but holding the insulation part of the plug.
DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to the drawings and more particularly ot FIGS. 1 and 2, the invention is illustrated therein by way of a socket wrench 10 which is comprised of a hollow body 12 provided integrally with a housing 14 of hexagonal shape having a room 16 communicating to a hollow path 18 of smaller diameter than that of the room 16. The room 16 is interiorly provided with a groove 20 at the corner portion in abutment with a stepped portion 22 formed along the demarcation line between the hollow path 18 and the room 16. In lieu of the groove 20, several point projections may be provided on the inner wall surface of the room 16 in abutment with the stepped portion 22.
As best shown in FIG. 2, the spring means 24 shown in perspective view comprises a substantially circular fitting line 26 and two plug embracing coils 28 of smaller diameter than that of the fitting line 26 which extends integrally and symmetrically from the said fit ting line.
The plug embracing coils 28 are preferably formed of a somewhat elliptical shape so that a sized allowance limit of the plug insulator is considerably extended for convenient use in the commercially available plugs of various sizes.
. In FIG. 3, the plug holding member of another embodiment in accordance with the present invention comprises a substantially frust-conical coil 30 having at lesat three stages wherein an end portion 32 of the bottom stage line 34 is raised to bear the middle stage line 36 externally and an end portion 38 of the top stage line 40 is bent downwardly to internally limit the movement of the middle stage line 36 on the insertion operation of the plug. That is, the plug insulator is inserted from the bottom stage line 34 through the middle stage line 36 toward the top stage line 40 with movements of the bottom stage line 34 and the middle stage line 36 caused by friction between the bottom stage line 34 and the surface of the insulator. However, since the movements of these lines are limited by the end portions 32 and 38 respectively as mentioned above, the
In FIGS. 6A, 6B and 7, thjeplug holding member comprises a substantially hexagonal washer plate 41 which is provided in the plate with a number of raised holding petal members 42 having different heights in alternate relation and a group of the taller petal members 44 and a group of the shorter petal members 46 are both somewhat bent outwardly to form two constrietions in parallel which support the plug insulator in a stable manner similar to the spring means 24 as best shown in FIGS. 1 and 2.
The washer plate is further provided with a number of seat sections 48 adapted to make a rigid engagement with the inner wall surface of the housing 14 in a position in abutment with the stepped portion 22. In accordance with this embodiment, the groove for securing the spring means is not required as can be seen from FIG. 7.
The above washer plate with the holding spring means may be formed by a suitable punching operation with considerably low cost.
What is claimed is:
l. A plug-holding socket comprising a hollow body and a housing which accommodates therein a springholding means for an insulation part of the plug, said spring-holding means comprising a substantially circular fitting member and two plug-embracing coils of smaller diameter than said fitting member and extending integrally and symmetrically therefrom in an elliptical shape for extension of a size allowance limit of the plug insulator to be held by the said plug-embracing coils.
2. A plug-holding socket comprising a hollow body and a housing which accommodates therein a springholding means for an insulation part of the plug, said spring-holding means comprising a substantially circular fitting member and two plug-embracing coils of smaller diameter than said fitting member and extending integrally and symmetrically therefrom, said springholding means further comprising a substantially frusto-conical coil having three stage lines wherein an end portion of the bottom stage line is raised to bear the middle stage line externally whereas an end portion of the top stage line is bent downwardly to interiorly support the middle stage linc.
Claims (2)
1. A plug-holding socket comprising a hollow body and a housing which accommodates therein a spring-holding means for an insulation part of the plug, said spring-holding means comprising a substantially circular fitting member and two plug-embracing coils of smaller diameter than said fitting member and extending integrally and symmetrically therefrom in an elliptical shape for extension of a size allowance limit of the plug insulator to be held by the said plug-embracing coils.
2. A plug-holding socket comprising a hollow body and a housing which accommodates therein a spring-holding means For an insulation part of the plug, said spring-holding means comprising a substantially circular fitting member and two plug-embracing coils of smaller diameter than said fitting member and extending integrally and symmetrically therefrom, said spring-holding means further comprising a substantially frusto-conical coil having three stage lines wherein an end portion of the bottom stage line is raised to bear the middle stage line externally whereas an end portion of the top stage line is bent downwardly to interiorly support the middle stage line.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1970076832U JPS4827914Y1 (en) | 1970-07-31 | 1970-07-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3745861A true US3745861A (en) | 1973-07-17 |
Family
ID=13616637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00167660A Expired - Lifetime US3745861A (en) | 1970-07-31 | 1971-07-30 | Plug holding socket |
Country Status (3)
Country | Link |
---|---|
US (1) | US3745861A (en) |
JP (1) | JPS4827914Y1 (en) |
GB (1) | GB1354569A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3924492A (en) * | 1972-06-28 | 1975-12-09 | Ford Motor Co | Spark plug socket wrench |
US5960682A (en) * | 1998-03-23 | 1999-10-05 | Ko-Ken Tool Co., Ltd. | Plug wrench |
US6098504A (en) * | 1999-04-16 | 2000-08-08 | Hu; Bobby | Nut holding devices |
US20090211408A1 (en) * | 2008-02-27 | 2009-08-27 | Chia Hui Peng | Spark plug socket wrench |
US20220288751A1 (en) * | 2021-03-11 | 2022-09-15 | Kabo Tool Company | Socket with Engaging Structure |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2538744A (en) * | 2015-05-27 | 2016-11-30 | Son Yuios Ind Co Ltd | Fastening unit |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2304271A (en) * | 1940-09-09 | 1942-12-08 | Mechanics Engineering Company | Wrench for spark plugs and the like |
US2320044A (en) * | 1940-09-03 | 1943-05-25 | Mechanies Engineering Company | Wrench |
-
1970
- 1970-07-31 JP JP1970076832U patent/JPS4827914Y1/ja not_active Expired
-
1971
- 1971-07-30 US US00167660A patent/US3745861A/en not_active Expired - Lifetime
- 1971-08-02 GB GB3624471A patent/GB1354569A/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2320044A (en) * | 1940-09-03 | 1943-05-25 | Mechanies Engineering Company | Wrench |
US2304271A (en) * | 1940-09-09 | 1942-12-08 | Mechanics Engineering Company | Wrench for spark plugs and the like |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3924492A (en) * | 1972-06-28 | 1975-12-09 | Ford Motor Co | Spark plug socket wrench |
US5960682A (en) * | 1998-03-23 | 1999-10-05 | Ko-Ken Tool Co., Ltd. | Plug wrench |
US6098504A (en) * | 1999-04-16 | 2000-08-08 | Hu; Bobby | Nut holding devices |
US20090211408A1 (en) * | 2008-02-27 | 2009-08-27 | Chia Hui Peng | Spark plug socket wrench |
US20220288751A1 (en) * | 2021-03-11 | 2022-09-15 | Kabo Tool Company | Socket with Engaging Structure |
Also Published As
Publication number | Publication date |
---|---|
DE2138245A1 (en) | 1972-02-10 |
GB1354569A (en) | 1974-06-05 |
JPS4827914Y1 (en) | 1973-08-18 |
DE2138245B2 (en) | 1977-04-21 |
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