Member junction structure and electric junction box

Patent metadata

Field	Value
Publication number	US-11575252-B2
Application number	US-202117209406-A
Country	US
Kind code	B2
Filing date	Mar 23, 2021
Priority date	Mar 30, 2020
Publication date	Feb 7, 2023
Grant date	Feb 7, 2023

Abstract

A member junction structure includes a first member provided with a first press-fitting portion and a second press-fitting portion, and a second member provided with a first press-fitted portion and a second press-fitted portion and configured to be installed on the first member by moving in a first direction which is a predetermined one direction with respect to the first member. In a state where the second member is halfway to be installed on the first member, the first press-fitting portion is inserted into the second press-fitted portion, thereby providing a guide for installing the second member on the first member. In a state where the second member is completely installed on the first member, the first press-fitting portion is press-fitted into the first press-fitted portion, and the second press-fitting portion is press-fitted into the second press-fitted portion.

First claim

What is claimed is:

1. A member junction structure, comprising:
a first member provided with a first press-fitting portion and a second press-fitting portion; and
a second member provided with a first press-fitted portion and a second press-fitted portion, and configured to be installed on the first member by moving in a first direction which is a predetermined one direction with respect to the first member, wherein
in a state where the second member is halfway to be installed on the first member, the first press-fitting portion is inserted into the second press-fitted portion, thereby providing a guide for installing the second member on the first member, and
in a state where the second member is completely installed on the first member, the first press-fitting portion is press-fitted into the first press-fitted portion, the first press-fitting portion and the first press-fitted portion are in surface contact with each other with a biasing force, the second press-fitting portion is press-fitted into the second press-fitted portion, and the second press-fitting portion and the second press-fitted portion are in surface contact with each other with a biasing force.

2. The member junction structure of claim 1 , wherein
the first member and the second member are fitted in at least one of:
a first fitting mode where the second member is completely installed on the first member and when the first press-fitting portion is press-fitted into the first press-fitted portion, the first member and the second member are fitted in an interference-fitting state at a plurality of places in a predetermined direction different from the first direction; and
a second fitting mode where the second member is completely installed on the first member and when the second press-fitting portion is press-fitted into the second press-fitted portion, the first member and the second member are fitted in an interference-fitting state at a plurality of places in a predetermined direction different from the first direction.

3. The member junction structure of claim 2 , wherein
when a predetermined direction crossing the first direction is defined as a second direction,
in the first fitting mode, the first member and the second member are fitted at the plurality of places in the second direction in an interference-fitting state.

4. The member junction structure of claim 2 , wherein
when a predetermined direction crossing the first direction is defined as a second direction,
in the second fitting mode, the first member and the second member are fitted at the plurality of places in the second direction in an interference-fitting state.

5. The member junction structure of claim 1 ,
the guide in the state where the second member is halfway to be installed on the first member is a guide for positioning the second member with respect to the first member in a direction orthogonal to the moving direction of the second member.

6. The member junction structure of claim 1 , wherein
the first press-fitting portion and the second press-fitting portion of the first member are separated from each other in the first direction,
between the first press-fitting portion and the second press-fitting portion of the first member, a press-fitting portion intermediate portion is provided,
the first press-fitted portion and the second press-fitted portion of the second member are separated from each other in the first direction,
between the first press-fitted portion and the second press-fitted portion of the second member, a press-fitted portion intermediate portion is provided, and
in a state where the second member is completely installed on the first member, the press-fitted portion intermediate portion is slightly separated from the press-fitted portion intermediate portion.

7. The member junction structure of claim 1 , wherein
in the state where the second member is halfway to be installed on the first member, the first press-fitting portion is inserted into and surrounded radially by a cavity of the second press-fitted portion, and
in the state where the second member is completely installed on the first member, the first press-fitting portion is inserted into and surrounded radially by a cavity of the first press-fitted portion, and the second press-fitting portion is press-fitted into and surrounded radially by the cavity of the second press-fitted portion.

8. An electric junction box, comprising:
a resin bracket press-fitting structure comprising:
a first resin bracket comprising
a first resin bracket body portion,
a first press-fitting portion projecting from the first resin bracket body portion,
a press-fitting portion intermediate portion adjacent to the first press-fitting portion in a first direction, which is a predetermined one direction, and projecting from the first resin bracket body portion, and
a second press-fitting portion adjacent to the press-fitting portion intermediate portion in the first direction and projecting from the first resin bracket body portion; and

a second resin bracket comprising
a second resin bracket body portion,
a first press-fitted portion formed of a recess provided in the second resin bracket body portion,
a press-fitted portion intermediate portion adjacent to the first press-fitted portion in the first direction, and formed of a recess provided in the second resin bracket body portion, and
a second press-fitted portion adjacent to the of the press-fitted portion intermediate portion in the first direction, and formed of a recess provided in the second resin bracket body portion, wherein

by moving the second resin bracket relative to the first resin bracket in the first direction, the first press-fitting portion is press-fitted into the first press-fitted portion, and the second press-fitting portion is press-fitted into the second press-fitted portion, and
in a state where the second resin bracket body portion is completely installed on the first resin bracket body portion, the first press-fitting portion is press-fitted into the first press-fitted portion, the first press-fitting portion and the first press-fitted portion are in surface contact with each other with a biasing force, the second press-fitting portion is press-fitted into the second press-fitted portion, and the second press-fitting portion and the second press-fitted portion are in surface contact with each other with a biasing force.

9. The electric junction box of claim 8 , wherein
in the state where the second member is halfway to be installed on the first member, the first press-fitting portion is inserted into and surrounded radially by a cavity of the second press-fitted portion, and
in the state where the second member is completely installed on the first member, the first press-fitting portion is inserted into and surrounded radially by a cavity of the first press-fitted portion, and the second press-fitting portion is press-fitted into and surrounded radially by the cavity of the second press-fitted portion.

Assignees

• Yazaki Corp

Inventors

• Ando Ryota
• Nagano Masayuki

Classifications

• H02G3/14

  Fastening of cover or lid to box · CPC title

• H01R9/24

  Terminal blocks · CPC title

• H02G3/10

  for surface mounting on a wall · CPC title

• H02G3/081 Primary

  Bases, casings or covers · CPC title

• B60R16/0239 Primary

  Electronic boxes · CPC title