Portable information radio terminal device and manufacturing method thereof
View Patent ↗When a portable information ratio terminal device receives impact (external force) due to falling down or the like, electrical connection of an electronic part mounted on a substrate in the device body is held. The portable information terminal device includes the device body ( 1 H) consisted of mutually combined first and second casings ( 3 ) and ( 4 ), a printed board ( 2 ) provided in the device body and mounting an electronic part ( 6 ) and an elastic body ( 6 ) supporting the printed board on the device body. The elastic body is provided between the printed board and the first casing and between the printed board and the second casing.
1. A portable information radio terminal device comprising:
a device body, said device body including a first and second casing assemblable with each other at contact points defining a contact perimeter of said device body;
a printed board provided in said device body;
an electronic part provided on said printed board; and
an elastic member in direct contact with and supporting said printed board inboard of, and without contacting, the contact perimeter of said device body;
wherein said elastic member is disposed between said printed board and said first casing and between said printed board and said second casing.
2. A method of manufacturing a portable information radio terminal device for assembling a first casing and a second casing, the first and second casings being assemblable with each other at contact points defining a contact perimeter, said device housing a printed board between said first and second casings, comprising:
arranging said printed board on one of said first and second casings with an elastic member positioned inboard of, and without contacting, the contact perimeter of said one of said first and second casings and between said printed board and said one of said first and second casings to support said printed board; and
assembling the other of said first and second casings to said one of said first and second casings while interpositioning said elastic member between said other of said first and second casings and said printed board, said elastic member being in direct contact with said printed circuit board.
3. A method of manufacturing a portable information radio terminal device as set forth in claim 2 , wherein said elastic member is pressurized upon assembling said first and second casings.
4. A portable information radio terminal device comprising:
a housing, the housing comprising a first casing and a second casing detachable from the first casing said first and second casings being assemblable with each other at contact points defining a contact perimeter of the housing;
a printed circuit board; and
a cushion in contact with both the housing and the printed circuit board so as to support the printed circuit board within the housing, said cushion being positioned inboard of, and without contacting, the contact perimeter of the housing.
5. The device as recited in claim 4 , wherein:
at least a portion of the cushion is in contact with the first casing and at least a portion of the cushion is in contact with the second casing.
6. The device as recited in claim 4 , wherein
the cushion is in contact with the first casing and the printed circuit board; and
the portable device further comprises a second cushion distinct from the first cushion, the second cushion being in contact with the second casing and the printed circuit board.
7. The device as recited in claim 4 , wherein the cushion is disposed at a part of the housing which is proximate to the center of gravity of the portable device.