In the present invention, a protruding section (23) is provided with a fitting section with which the outer periphery of a cylinder (12) fits. When the cylinder (12) and a closure member (51) are assembled inside an outer cylinder (14), the length (h3) from an abutting section (31) to one end-side end section (111) of the outer cylinder (14) is greater than the length (h2) from another end-side end section (102) of the cylinder (12) to one end-side end section (73) of an outer peripheral side of the closure member (51). The length (h1) from one end-side end surface (23a) of the protruding section (23) to the abutting section (31) is greater than the difference between the length (h3) from the abutting section (31) of a bottom section (22) to the one end-side end section (111) of the outer cylinder (14) and the length (h2) from the other end-side end section (102) of the cylinder (12) to the one end-side end section (73) of the outer peripheral side of the closure member (51).
突出部(23)具备供缸(12)的外周嵌合的嵌合部。在将缸(12)和封闭部件(51)组装到了外筒(14)内时,从抵接部(31)到外筒(14)的一端侧端部(111)的长度(h3)比从缸(12)的另一端侧端部(102)到封闭部件(51)的外周侧的一端侧端部(73)的长度(h2)长。从突出部(23)的一端侧端面(23a)到抵接部(31)之间的长度(h1)大于从底部(22)的抵接部(31)到外筒(14)的一端侧端部(111)的长度(h3)与从缸(12)的另一端侧端部(102)到封闭部件(51)的外周侧的一端侧端部(73)的长度(h2)之差。
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30.07.2021
Patent
Elektronische Ressource
Chinesisch