Abstract: A connector housing body has a terminal receiving chamber. A projecting terminal has a terminal base received in the terminal receiving chamber and a projecting portion projecting from the housing body. A front body covers the projecting portion of the terminal. The front body has the terminal insertion hole through which the projecting portion of the terminal is extended. L locking means are provided in the housing body and the front body for finally locking the front body to the housing body at a final locking position where the projecting portion of the terminal is extended from the insertion hole. The locking means preliminarily locks the front body at the preliminary locking position where a leading end of the projecting portion of the terminal is positioned with a less distance from the front body than at the final locking position. At the preliminary locking position, the projecting portion of the terminal is not extended from the terminal insertion hole of the front body.

Abstract: There is provided a lock structure of two articles which are attached to each other by fitting one article on the other article. The lock structure includes a lock arm formed at one of the two articles, and an arm reception portion which has a retaining portion for retaining engagement with the lock arm, and is formed at the other of the two articles. During the time when the one article is attached to the other article, the lock arm is brought into abutting engagement with the arm reception portion, and is elastically deformed to slide past the retaining portion, and becomes engaged with the retaining portion. The arm reception portion has a guide portion extending to the retaining portion, and a distal end portion of the lock arm is received between the guide portion and an outer surface of the other article.

Abstract: A connector includes an inner housing receiving terminals, and an outer housing which is attached to the inner housing in a direction of insertion of the terminals into the inner housing. The outer housing includes pressing portions which abut against or are closely opposed to the respective terminals, received in their respective predetermined positions within the inner housing, in the direction of attaching of the outer housing.

Abstract: A connector housing body has a terminal receiving chamber. A projecting terminal has a terminal base received in the terminal receiving chamber and a projecting portion projecting from the housing body. A front body covers the projecting portion of the terminal. The front body has the terminal insertion hole through which the projecting portion of the terminal is extended. L locking means are provided in the housing body and the front body for finally locking the front body to the housing body at a final locking position where the projecting portion of the terminal is extended from the insertion hole. The locking means preliminarily locks the front body at the preliminary locking position where a leading end of the projecting portion of the terminal is positioned with a less distance from the front body than at the final locking position. At the preliminary locking position, the projecting portion of the terminal is not extended from the terminal insertion hole of the front body.

Abstract: An object of the present invention is to provide a proton conducting polymer membrane that has excellent mechanical properties and high methanol barrier properties, in addition to high proton conductivity, and is useful as an electrolyte in polymer electrolyte fuel cells and direct methanol fuel cells. The present invention provides a proton conducting polymer membrane having a product of a proton conductivity at 23° C. and a methanol barrier coefficient at 25° C. in an aqueous methanol solution of a specified concentration being a specified value or more. The present invention also provides a proton conducting polymer membrane having an ion exchange capacity of 0.3 milli-equivalent/g or more, and having a crystalline phase.