JPH0568080U - connector - Google Patents

Abstract

(57) [Summary] [Object] To provide a locking portion for locking a rear holder from a side surface of a connector housing and a connector in which an end portion of the rear holder does not project. According to the connector 23 of the present invention, a flexible locking piece 39 which is flexible and is located flush with or inside the side wall 25a of the connector housing 25 is formed on the flexible locking piece 39. A locking portion 49, which is positioned inside the side wall 25a of the connector housing 25 while being locked and locked by the flexible locking piece 39, is formed at the other end of the rear holder 43. I am trying.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connector that locks a holder in a rear opening of a connector housing to prevent a terminal metal fitting from coming out of a terminal accommodating chamber.

[0002]

[Prior Art]

 4 and 5 show a male connector connector 1 described in Japanese Utility Model Laid-Open No. 1-134369. In these figures, in the male connector 1, a plurality of terminal accommodating chambers (not shown) are formed in the connector housing 3, and in these terminal accommodating chambers, terminals (not shown) crimped to the ends of the electric wires 5 are connected. Metal fittings are stored. These terminal fittings are retained in the terminal accommodating chamber by locking the locking step of the flexible locking arm formed in the terminal housing chamber into the locking hole of the terminal fitting. There is.

Further, locking frames 11 that form locking holes 9 are formed at both ends of the opening 7 on the lead-out side of the electric wire 5. The rear holder 9 is substantially U-shaped, and has a locking notch 15 formed at one end and a flexible locking plate 19 having a locking projection 17 at the other end formed through a pair of slits 16. ing. Further, a pressing portion 21 extending in the longitudinal direction of the rear holder 13 is formed on the upper portion of the flexible locking plate 19.

When the rear holder 13 is mounted on the male connector 1 described above, as shown in FIG. 5A, a plurality of electric wires 5 are inserted into one of the locking holes 9 of the electric wire drawing opening 7 and the rear holder. One end (locking notch 15) is locked while being inserted between the opposite side portions 9a, 9a of 9 and, as shown in FIG. 5 (b), this one end (locking notch 15) is a fulcrum. Then, by rotating and pressing the pressing portion 21, the other end (locking protrusion 17) is fitted into the other locking hole 9 of the opening 7 and locked. In this state, the terminal fitting is doubly prevented from coming out of the terminal accommodating chamber by the flexible locking arm (not shown) and the rear holder 13.

[0005]

[Problems to be solved by the device]

 By the way, in the male connector 1 to which the above-mentioned rear holder 13 is attached, the locking frame 11 forming the locking hole 9 and the pressing portion 21 of the rear holder 13 project from the side surface 3 a of the connector housing 3. Therefore, there is a problem that the male connector 1 becomes large. Furthermore, when a plurality of male connectors 1 are arranged in parallel, the distance is limited by the amount of protrusion of the locking frame 11 and the pressing portion 21 of the rear holder 13 from the side surface 3a. Therefore, there is a problem that the mating connector (female connector) also becomes large.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a connector in which a rear holder locking portion and an end portion of the rear holder do not project from the side surface of the connector housing.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention forms a flexible locking piece that is located on the same side of or inside a side wall of a connector housing and has a flexible locking piece. In addition, a locking portion located inside the side wall of the connector housing while being locked to the flexible locking piece is formed at the other end of the holder.

[0008]

[Action]

 According to the present invention, after one end of the rear holder is locked to the opening of the terminal accommodating chamber, the one end of the rear holder is rotated as a fulcrum, and the locking portion formed at the other end of the rear holder is connected It is locked to the flexible locking piece of the housing. This allows the rear holder to be attached to the connector housing.

Further, when the rear holder is attached to the connector housing, the locking portion of the rear holder is located inside the side surface of the connector housing. Further, the locking piece portion formed on the side wall of the connector housing is formed inside the side surface of the connector housing. As a result, the connector can be downsized.

[0010]

【Example】

 Hereinafter, embodiments of the connector according to the present invention will be described with reference to the drawings.

1 and 3 show a connector 23 to which the present invention is applied. This connector 23 is a so-called male connector, and is fitted into the fitting hood portion of a female connector (not shown). The connector 23 includes a connector housing 25 having a plurality of terminal accommodating chambers 33 formed therein, and terminal fittings 29 respectively accommodated in the terminal accommodating chambers 33. The terminal fittings 29 project into the terminal accommodating chamber 33. It is held in the terminal accommodating chamber 27 by locking the locking hole of the terminal fitting 29 in the locking step 37 of the flexible locking arm 35 provided. A rectangular through hole 45 is formed in one side wall 25a of the connector housing 25, and a through hole 41 is formed in the other side wall 25a so as to be flush with or inside the side wall 25a. A stop piece 39 is formed. By forming the slits 41 on both side surfaces of the flexible locking piece 39 that are orthogonal to the side surface 25a, the side surface 25a on the side of the opening 31 has flexibility.

On the other hand, the rear holder 43 mounted in the opening 31 on the rear end side of the connector housing 25 includes a pair of terminal metal fitting holding portions 47, 47 and one end of these terminal metal fitting holding portions 47, 47. A plurality of convex portions 51 corresponding to the terminal accommodating chamber 27 are formed in the terminal metal fitting holding portions 47, 47, respectively, and a locking protrusion 59 is formed in the tip portion. It is projected. Further, the locking portion 49 is formed by upper and lower locking frame portions 53 and 55, and a locking hole portion 57 is formed between these locking frame portions 53 and 55. These locking frame portions 53 and 55 are in a state of being locked to the locking piece portion 39 of the connector housing 25, that is, the locking frame portion 55 is fitted into the through hole 41, and When the front end portion 39a of the locking piece portion 39 is fitted into the connector, it is located flush with the side surface 25a of the connector housing 25 or slightly inside.

Next, a mounting method for mounting the rear holder 43 on the connector housing 25 will be described. As shown in FIG. 2A, after inserting the locking projections 59 of the pair of terminal metal fitting holding portions 47, 47 into the through holes 45, respectively, the rear holder 43 is rotated with the locking projections 59 as fulcrums. Then, the locking frame 55 is brought into contact with the locking piece 39 of the connector housing 25. Then, when the rear holder 43 is further rotated, the locking piece 39 is slightly bent outward, and the locking frame 55 is inserted into the through hole 41. In this state, the tip 39a of the locking piece 39 is fitted between the locking frames 55 and 53. As a result, the rear holder 43 can be attached to the opening 31. In this state, as shown in FIG. 2B, the protrusions 51 are in contact with the rear end portions of the terminal fittings 29 accommodated in the terminal accommodating chambers 27 corresponding to the terminal accommodating chambers 27, respectively. Thus, the terminal fitting 29 is prevented from coming out of the terminal accommodating chamber 27 together with the locking step portion 37 of the flexible locking arm 35.

Further, when the rear holder 43 is mounted in the opening 31 of the connector housing 25, the locking piece 39 and the locking frame portions 53, 55 do not project from the side surface 25 a of the connector housing 25. . Therefore, the connector 23 can be downsized.

Further, as shown in FIG. 3, when a plurality of connectors 23 are fitted in parallel to the female connector 33 which is a mating connector, the locking piece 39, the engaging piece 39 and the engaging piece 39 are engaged from the side surface 25 a of the connector housing 25. Since the stop frame portions 53 and 55 do not project, the gap L between the adjacent connectors 23 can be minimized and the female connector 33 can be downsized.

[0016]

[Effect of the device]

 As described above, according to the connector of the present invention, the locking piece having flexibility is formed inside the side surface of the connector housing, and the connector housing is locked in the locking piece. Since the locking part located inside the side wall is formed on the other end part of the holder, the locking part for locking the rear holder and the end part of the rear holder can be projected from the side surface of the connector housing. Absent. Therefore, the connector can be downsized, and the space between adjacent connectors can be minimized when the mating connectors are fitted in parallel.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a connector according to the present invention.

2A is a sectional view showing a state where one end of a rear holder is locked to a connector housing, and FIG. 2B is a sectional view showing a state where the rear holder is attached to the connector.

FIG. 3 is a plan view showing a state in which the mating connector is fitted in parallel.

FIG. 4 is a perspective view showing a conventional connector.

FIG. 5A is a side view showing a state where one end of a rear holder is locked to a connector housing of a conventional connector,
(B) is a side view showing a state in which the other end of the rear holder is about to be locked to the connector housing of the conventional connector.

[Explanation of symbols]

 23 connector 25 connector housing 27 terminal accommodating chamber 31 opening 39 locking piece 41 through hole 43 rear holder 45 through hole 53, 55 locking frame 57 locking hole 59 locking projection

Claims (1)

[Scope of utility model registration request] 1. A connector housing having a terminal accommodating chamber in which a terminal fitting is accommodated, and one end of the connector housing is locked to one opening of the terminal accommodating chamber and is rotated by using this one end as a fulcrum. In a connector having a holder that fits and locks an end portion into the opening edge portion, and a terminal fitting housed in the terminal housing chamber is prevented from coming off, the connector is flush with a side wall of the connector housing or inside the connector housing. A flexible locking piece having flexibility is formed and is locked to the flexible locking piece, and the connector housing is locked to the flexible locking piece. A connector having a locking portion located inside the side wall of the holder at the other end of the holder.