Abstract: A imaging device includes: a lens unit which is rotatable about an optical axis thereof; an adjusting gear unit which includes an adjusting gear that rotates the lens unit; a case which accommodates the lens unit and the adjusting gear unit and has a penetration hole through which a portion of the adjusting gear protrudes outward from an accommodation space; and a cover which covers a portion of the case including the penetration hole from outside of the case.

Abstract: A imaging device includes: a case having bottom and top plate portions with an accommodation space interposed therebetween; a dome cover protruding outward from the case through an opening formed in the top plate portion; an annular support member allowing a circumferential edge portion of the dome cover to be interposed between the support member and the top plate portion; a lens unit; and an elastic member disposed between the bottom plate portion and the lens unit and allows the lens unit to be biased in a direction toward the dome cover. The lens unit includes an outer circumferential portion disposed on outside of a lens in a direction along the bottom plate portion and engaged with an inside opening of the support member, and a stepped portion provided in the outer circumferential portion and restricts movement in the direction approaching the dome cover by abutting the support member.

Abstract: A imaging device includes: a lens unit which is rotatable about an optical axis thereof; an adjusting gear unit which includes an adjusting gear that rotates the lens unit; a case which accommodates the lens unit and the adjusting gear unit and has a penetration hole through which a portion of the adjusting gear protrudes outward from an accommodation space; and a cover which covers a portion of the case including the penetration hole from outside of the case.

Abstract: A imaging device includes: a case having bottom and top plate portions with an accommodation space interposed therebetween; a dome cover protruding outward from the case through an opening formed in the top plate portion; an annular support member allowing a circumferential edge portion of the dome cover to be interposed between the support member and the top plate portion; a lens unit; and an elastic member disposed between the bottom plate portion and the lens unit and allows the lens unit to be biased in a direction toward the dome cover. The lens unit includes an outer circumferential portion disposed on outside of a lens in a direction along the bottom plate portion and engaged with an inside opening of the support member, and a stepped portion provided in the outer circumferential portion and restricts movement in the direction approaching the dome cover by abutting the support member.

Abstract: There are provided a polyol curable fluororubber composition using a fluororubber of general use, a cured fluororubber formed article used as a grommet, a seal packing and the like for a gas sensor which can be used under high temperature circumstances using this, and a method of producing the same. A polyol curable fluororubber composition, which comprises 100 parts by weight of a fluororubber, 6 to 15 parts by weight of magnesium oxide, 0.5 to 5 parts by weight of a hydrotalcite group compound and 20 to 55 parts by weight of a mixture of thermal black and a bituminous coal filler. A cured fluororubber formed article which is produced by forming and curing the fluororubber composition in the presence of a polyol curing agent, and then subjecting the cured formed product to a stepwise temperature elevation treatment in a temperature range of 100° C. to 300° C.

Abstract: There are provided a polyol curable fluororubber composition using a fluororubber of general use, a cured fluororubber formed article used as a grommet, a seal packing and the like for a gas sensor which can be used under high temperature circumstances using this, and a method of producing the same. A polyol curable fluororubber composition, which comprises 100 parts by weight of a fluororubber, 6 to 15 parts by weight of magnesium oxide, 0.5 to 5 parts by weight of a hydrotalcite group compound and 20 to 55 parts by weight of a mixture of thermal black and a bituminous coal filler. A cured fluororubber formed article which is produced by forming and curing the fluororubber composition in the presence of a polyol curing agent, and then subjecting the cured formed product to a stepwise temperature elevation treatment in a temperature range of 100° C. to 300° C.

Abstract: A gasket rubber product made of a cured material of a fluorosilicone rubber composition containing: 100 parts by weight of an organopolysiloxane expressed by the following average composition formula: R1aR2bR3cSiO(4-a-b-c)/2 wherein R1 indicates a trifluoropropyl group, R2 indicates a non-substituted or substituted monovalent aliphatic unsaturated hydrocarbon group having 2 to 8 carbon atoms, R3 indicates a non-substituted monovalent aliphatic saturated hydrocarbon group or aromatic hydrocarbon group having 1 to 8 carbon atoms, provided that a, b and c are positive numbers satisfying 0.96?a?1.01, 0.002?b?0.02, 0.96?c?1.06 and 1.98?a+b+c?2.02; 5 to 100 parts by weight of a silica-based filler; and a catalyst quantity of a curing catalyst.

Abstract: A gasket rubber product made of a cured material of a fluorosilicone rubber composition containing: 100 parts by weight of an organopolysiloxane expressed by the following average composition formula: R1aR2bR3cSiO(4-a-b-c)/2 wherein R1 indicates a trifluoropropyl group, R2 indicates a non-substituted or substituted monovalent aliphatic unsaturated hydrocarbon group having 2 to 8 carbon atoms, R3 indicates a non-substituted monovalent aliphatic saturated hydrocarbon group or aromatic hydrocarbon group having 1 to 8 carbon atoms, provided that a, b and c are positive numbers satisfying 0.96?a?1.01, 0.002?b?0.02, 0.96?c?1.06 and 1.98?a+b+c?2.02; 5 to 100 parts by weight of a silica-based filler; and a catalyst quantity of a curing catalyst.

Abstract: There are provided a polyol curable fluororubber composition using a fluororubber of general use, a cured fluororubber formed article used as a grommet, a seal packing and the like for a gas sensor which can be used under high temperature circumstances using this, and a method of producing the same. A polyol curable fluororubber composition, which comprises 100 parts by weight of a fluororubber, 6 to 15 parts by weight of magnesium oxide, 0.5 to 5 parts by weight of a hydrotalcite group compound and 20 to 55 parts by weight of a mixture of thermal black and a bituminous coal filler. A cured fluororubber formed article which is produced by forming and curing the fluororubber composition in the presence of a polyol curing agent, and then subjecting the cured formed product to a stepwise temperature elevation treatment in a temperature range of 100° C. to 300° C.

Abstract: A gasket rubber product made of a cured material of a fluorosilicone rubber composition containing: 100 parts by weight of an organopolysiloxane expressed by the following average composition formula: R1aR2bR3cSiO(4-a-b-c)/2 wherein R1 indicates a trifluoropropyl group, R2 indicates a non-substituted or substituted monovalent aliphatic unsaturated hydrocarbon group having 2 to 8 carbon atoms, R3 indicates a non-substituted monovalent aliphatic saturated hydrocarbon group or aromatic hydrocarbon group having 1 to 8 carbon atoms, provided that a, b and c are positive numbers satisfying 0.96?a?1.01, 0.002?b?0.02, 0.96?c?1.06 and 1.98?a+b+c?2.02; 5 to 100 parts by weight of a silica-based filler; and a catalyst quantity of a curing catalyst.

Abstract: A gasket rubber product made of a cured material of a fluorosilicone rubber composition containing: 100 parts by weight of an organopolysiloxane expressed by the following average composition formula: R1aR2bR3cSiO(4?a?b?c)/2 wherein R1 indicates a trifluoropropyl group, R2 indicates a non-substituted or substituted monovalent aliphatic unsaturated hydrocarbon group having 2 to 8 carbon atoms, R3 indicates a non-substituted monovalent aliphatic saturated hydrocarbon group or aromatic hydrocarbon group having 1 to 8 carbon atoms, provided that a, b and c are positive numbers satisfying 0.96?a?1.01, 0.002?b?0.02, 0.96?c?1.06 and 1.98?a+b+c?2.02; 5 to 100 parts by weight of a silica-based filler; and a catalyst quantity of a curing catalyst.

Abstract: There are provided a polyol curable fluororubber composition using a fluororubber of general use, a cured fluororubber formed article used as a grommet, a seal packing and the like for a gas sensor which can be used under high temperature circumstances using this, and a method of producing the same. A polyol curable fluororubber composition, which comprises 100 parts by weight of a fluororubber, 6 to 15 parts by weight of magnesium oxide, 0.5 to 5 parts by weight of a hydrotalcite group compound and 20 to 55 parts by weight of a mixture of thermal black and a bituminous coal filler. A cured fluororubber formed article which is produced by forming and curing the fluororubber composition in the presence of a polyol curing agent, and then subjecting the cured formed product to a stepwise temperature elevation treatment in a temperature range of 100° C. to 300° C.

Abstract: There are provided a polyol curable fluororubber composition using a fluororubber of general use, a cured fluororubber formed article used as a grommet, a seal packing and the like for a gas sensor which can be used under high temperature circumstances using this, and a method of producing the same. A polyol curable fluororubber composition, which comprises 100 parts by weight of a fluororubber, 6 to 15 parts by weight of magnesium oxide, 0.5 to 5 parts by weight of a hydrotalcite group compound and 20 to 55 parts by weight of a mixture of thermal black and a bituminous coal filler. A cured fluororubber formed article which is produced by forming and curing the fluororubber composition in the presence of a polyol curing agent, and then subjecting the cured formed product to a stepwise temperature elevation treatment in a temperature range of 100° C. to 300° C.

Abstract: A gasket rubber product made of a cured material of a fluorosilicone rubber composition containing:

Abstract: A cylinder head gasket adapted for being mounted on an internal combustion engine, and comprises an elastic metal sheet (1) having more than one combustion chamber opening and more than one passage hole, including a bead formed in the area surrounding the combustion chamber opening and a bead formed in the area surrounding the passage hole, wherein a sealing material is coated on the front or rear side, or both, of the elastic metal sheet (1). Specifically, the sealing material includes a thermally resistant sealing material (7, 17) and a water/oil resistant sealing material (8, 18), wherein the thermally resistant sealing material (7, 17) may be coated on the front or rear side, or both, of the bead (5) formed in the area surrounding the combustion chamber opening (2), and the water/oil resistant sealing material (8, 18) may be coated on the front or rear side, or both, of the bead (6) formed in the area surrounding the passage hole (3).

Abstract: A cylinder head gasket adapted for being mounted on an internal combustion engine, and comprises an elastic metal sheet (1) having more than one combustion chamber opening and more than one passage hole, including a bead formed in the area surrounding the combustion chamber opening and a bead formed in the area surrounding the passage hole, wherein a sealing material is coated on the front or rear side, or both, of the elastic metal sheet (1). Specifically, the sealing material includes a thermally resistant sealing material (7, 17) and a water/oil resistant sealing material (8, 18), wherein the thermally resistant sealing material (7, 17) may be coated on the front or rear side, or both, of the bead (5) formed in the area surrounding the combustion chamber opening (2), and the water/oil resistant sealing material (8, 18) may be coated on the front or rear side, or both, of the bead (6) formed in the area surrounding the passage hole (3).