JP2597245Y2 - Bolt type connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bolt-type connector.

[0002]

2. Description of the Related Art Sophistication of electrical components mounted on automobiles and the like,
With the increase in complexity, connectors for interconnecting these electrical components are becoming multipolar. In general, when the number of poles of a connector increases, the force required to fit the connectors also increases, making manual fitting extremely difficult or impossible. For this reason, a connector in which one connector housing is provided with a bolt and the other connector housing is provided with a nut, and the bolt and the nut are screwed together to fit the two connector housings together has been conventionally used (see Japanese Utility Model Application Laid-Open No. -876 and the like). In this conventional connector, when the head of the bolt is rotated with an air driver or the like,
In order to improve workability so that the electric wire connected to the contact is not entangled with the air driver or the like, a bolt holding portion of the housing is formed to protrude from the contact insertion surface.

However, the protruding bolt holding portion is
In the contact insertion operation, particularly when the contact is automatically inserted by an automatic machine (robot), it is necessary to avoid the protruding bolts, which significantly lowers the operation efficiency.
Therefore, the bolt holding the housing is formed in the connector housing separately from the bolt-tightened connector configured to mount the bolts holding the housing after the insertion work of the contact receiving chamber of the connector housing has been proposed (JP Akira 6 2-188188). This bolt-tightened connector prevents the bolt from coming off from the bolt holding housing by a stopper, and engages a locking arm provided on the bolt holding housing with a locking hole provided on the connector housing, so that the bolt holding housing and the bolt holding housing can be connected to each other. The connector housing is locked.

[0004]

However, in the above-described conventional bolted connector, since the locking arm integrally provided in the bolt holding housing needs flexibility, the locking arm cannot be formed firmly. . Therefore, excessive stress on the locking arm when disengaging the pair of connectors is produced, there is a fear that the locking arm may be damaged. Also, if the bolt is overtightened and the bolt breaks at the neck, the bolt holding housing needs to be replaced. However, since the locking arm is located in the accommodation room of the connector housing, it is not easy to remove the bolt holding housing from the connector housing. Accordingly, the present invention includes a pair of together also have a hard locking means damaged at the time of withdrawal of the connector, bolt-out is <br/> in to exchange easily bolt when broken Rubo belt clamping connector The purpose is to provide.

[0005]

Means for Solving the Problems A bolt type connector of the present invention is provided.
The connector connects the connector housing with the mating connector using bolts.
Bolt-type connector that fits tightly into the connector housing
A bolt, wherein the bolt is an axis between a threaded portion and a head.
The upper part has a constricted part and a large diameter part larger than the constricted part.
The connector housing has a bolt insertion hole and the bolt.
Has a plate-like metal fitting receiving hole substantially orthogonal to the
The fitting receiving hole is inserted into the narrow portion of the bolt.
The fixing member for retaining the bolt is
Bolted type that slides in a direction substantially perpendicular to the shaft
In the connector, the fixing member is provided with the bolt
The width that cannot accept the large diameter part but can accommodate the constricted part
Having a width that allows the narrow portion and the large diameter portion to pass through
A plate-shaped metal fitting having a slot composed of a wide portion,
Between the metal fitting and the connector housing,
A temporary locking means for locking the metal fitting in a temporary locking position, and the plate
Locking means for locking the metal fitting at the locking position is formed.
The plate-like metal fitting is located in front of the bolt at the temporary locking position.
The large diameter portion is allowed to pass through the wide portion,
In the stop position, the narrow portion receives the narrow portion.
The bolt can be removed from the connector housing
It fixed is characterized by Rukoto.

The metal plate has a bent portion at one end.
And the connector housing is provided with the plate-shaped fitting receiving hole.
A tool receiving recess on the side where the bent portion is located,
When the metal plate is in the final locking position, the bent portion
Configured so as not to protrude from the side wall of the connector housing
It is preferred that

[0007]

BRIEF DESCRIPTION while the preferred embodiment of the present invention the bolt-tightened connector with reference to the drawings. Figure 1 is an exploded perspective view showing an embodiment of a bolt tighten type connector of the present invention. FIG. 2 is a cross-sectional view taken along line II-II, showing the bolted connector of FIG. 1 in an assembled state. FIG.
FIGS. 6A and 6B are a plan view and a side view, respectively, showing another embodiment of the plate-shaped metal fitting used in the bolt-type connector of FIG. FIG. 4 shows still another embodiment of the plate-shaped metal fitting.
(A) is a plan view and (B) is a side view. FIG.
Shows an embodiment of another bolt tighten type connector.

In FIG. 1, a bolt-type connector 2
Includes a bolt holding housing 30, a bolt 50, and a plate-like metal fitting 70. In addition, the bolt-type connector 2 includes a connector housing 10 and a bolt holding housing 30. When the bolt 50 housed in the bolt holding housing 30 is screwed with a nut (not shown) fixed in a mating connector (not shown), the connector 2 and the mating connector are fitted. Connector housing 10
Has a large number of contact insertion holes (not shown) for inserting the contacts 6 connected to the electric wires 4 on one surface 12 thereof. An accommodation portion 14 for accommodating the bolt holding housing 30 is formed at the center of the one surface 12 , and the bolt 5 is substantially at the center thereof.
A bolt insertion hole 16 for receiving a zero is provided. On the side surface 18 of the connector housing 10, a receiving hole 20 for receiving the plate-like metal fitting 70 is formed so as to cross the bolt insertion hole 16.

The bolt holding housing 30 has one end 3 thereof.
2 comes into contact with the head 52 of the bolt 50, and the other end 34 comes into contact with the bolt holding housing accommodating portion 14 of the connector housing 10. Bolt holding housing 30
A bolt insertion hole 36 is formed at the center of the bolt 50, and a projection 38 that engages with the first constricted portion 54 of the bolt 50 to prevent the bolt 50 from coming off is formed on the inner wall thereof. On one side surface, an indicator portion for informing an operator that the connector 2 has been fitted with the mating connector is integrally provided. The indicator section includes a rod 45 whose lower surface is in contact with a mating connector, and an upper portion of the rod 45 and the bolt holding housing 3.
0 and the hinge portion 46 connecting the is between the sides and the bolt holding housing 30 spring portion 47 of a pair of connecting the or rod-shaped body 45 and the hinge portion 46, of the rod-like body 45, substantially the same thickness as the hinge portion 46 And a coloring portion 48 (shaded portion in FIG. 1). When the connector 2 is not fitted with the mating connector, the lower surface of the rod-shaped body 45 is not pressed by the mating connector, so that the colored portion 48 faces sideways as shown in FIG. When the connector 2 is completely fitted with the mating connector, the rod 45 is pressed by the mating connector, and the colored portion 48 faces upward. Thereby, the worker can recognize the completion of the fitting. When disengaging the fitted pair of connector rod member 45 is moved downward by the urging of the spring portion 47. As a result, the colored portion 48 turns to the side again.

Referring to FIG. 2, a bolt holding housing 30 is shown.
The bolt 50 inserted through the first constricted portion 5
4. Second constricted portion 56, large-diameter portion 60, and externally threaded portion 58
The diameter of the first constricted portion 54 is set smaller than the diameter of the second constricted portion 56 so that the first constricted portion 54 breaks first when the bolt 50 is excessively tightened to the nut.

The metal plate 70 is made of a metal plate having a predetermined thickness.
And a second shaft of the bolt 50 on its central axis.
A groove 72 for receiving the constriction 56 is formed. Groove 72
Is approximately equal to or slightly larger than the diameter of the second constricted portion 56.
And the diameter between the second constriction 56 and the external thread 58.
The diameter is set smaller than the diameter of the major part 60. Plate metal fitting 70
A bent portion 74 is formed on one end of the
A machine as a stopper for determining the insertion depth into the container hole 20
And the plate-like metal fitting 70 is connected to the connector housing 10.
When removing from the driver receiving recess(Tool receiving recess)2
2 and engages with the tip of a driver (not shown) inserted therein.
As shown in FIG. 2, the bent portion 74 is provided with a connector housing.
Do not project outward from the partition (side wall) 24 of the jing 10.
Connector unless it is removed by a tool such as a screwdriver.
It does not fall out of the housing 10 carelessly.
Note that the plate-like metal fitting is similar to a plate-like metal fitting 70 'shown in FIG.
Are provided with protrusions 78, 78 protruding into the grooves (slots).
Opening the two arms 76, 76 away from each other
The second constricted portion 56 is formed in the arc-shaped groove (narrow portion) 80 by the
May be accepted. Also, the plate shown in FIG.
The large diameter portion 60 of the bolt 50 passes through like a metal fitting 70 ".
A first arc portion (wide portion) 84 having a diameter that can be cut and a second constriction
The second arc portion (narrow width) which is substantially equal to or slightly larger than the diameter of the portion 56
Part) 86 to form a groove (slot) 72 ″
Good. When formed as the latter, groove 72 "is closed.
Therefore, the strength of the plate-shaped metal fitting can be increased.

In FIG. 1, a double locking plate 90, 90 'having a large number of contact insertion holes 94, 94' is mounted on one surface 12 of the connector housing 10. Flanges 96, 98 and 100, 102 are formed at both ends of each double locking plate 90, 90 '. Protrusions 42 and 44 are formed on the side surface of the bolt holding housing 30 to contact the flanges 98 and 100, respectively. The double locking plates 90, 90 'move between the connector housing 10 between a temporary locking position where the contact 6 can be inserted and a full locking position where the contact 6 is prevented from coming out. The partial locking position, one side 92 of the double locking plates 90, 90 'protrudes from the end face 26 of the partition wall 24 as shown in FIG. In the final locking position, as shown in FIG. 2, it is flush with the end face 26 of the partition wall 24. When the contact 6 is incompletely inserted into the contact insertion hole, a part of the contact 6 is engaged with the contact insertion hole 94 '(or 94), so that the double locking plate 90 or 90' is fully locked. Cannot move to position. At this time, the protrusion 42 or 44 of the bolt holding housing 30 is
The bolt holding housing 30 cannot be inserted to a predetermined depth of the housing portion 14 because the bolt holding housing 30 comes into contact with the flange portions 98 or 100 of the heavy locking plates 90 and 90 ′. That is, the other end 34 of the bolt holding housing 30 is connected to one surface 1 of the connector housing 10.
Do not touch 2. For this reason, the bolt 50 cannot be inserted to a predetermined depth in the bolt insertion hole 16, and the
Are not aligned with the second constricted portion 56 of the bolt 50 and cannot move in the accommodation hole 20. Therefore, since the plate-shaped metal fitting 70 cannot be moved, the worker can detect incomplete mounting of the contact 6.

Next, the process of assembling the bolted connector 2 of the present invention will be described. First, the double locking plate 9
A large number of contacts 6 connected to the electric wires 4 are connected to the connector housing 10 in which the 0 and 90 ' are temporarily locked.
A predetermined contact insertion hole is inserted from the contact insertion holes 94 and 94 'of the 0 and 90'. Next , the bolt holding housing 30 in which the bolt 50 is accommodated in the bolt insertion hole 36 and the bolt 50 are inserted into the accommodation portion 14 and the bolt insertion hole 16. Subsequently, the plate-shaped metal fitting 70 is inserted into the accommodation hole 20,
By accommodating the second constricted portion 56 in the groove 72, the bolt 50 and the bolt holding housing 30 are fixed to the connector housing 10. Next, the electric wires 4 are grouped so as to face one or two directions, and are covered with the electric wire cover 105.
At this time, as shown in FIG. 2, the movement of the plate-shaped bracket 70 may be prevented at the end of the wire cover 105.

In the case of the plate-shaped metal fittings 70 'and 70 "shown in FIGS. 3 and 4, the wide groove 82 and the first arc portion 84 are aligned with the bolt insertion hole 16 beforehand in the accommodation hole 20. Next, after the bolt holding housing 30 and the bolt 50 are inserted into the accommodation portion 14 and the bolt insertion hole 16, respectively, the bent portions 74 of the plate-shaped metal fittings 70 ', 70 " The plate-shaped metal fittings 70 ′ and 70 ″ are moved to the full locking position where they come into contact with the parts.
Here, the plate-like member 70 ', and the temporary engagement by the 70 projection 88' engages the first recess 110 of the connector housing 10, the protrusion 88 and the first recess 110 is provisionally-retaining
Configure means . In addition, the locking by the projections 88 is engaged with the second recess 112, which constitutes the main locking means
I do.

In the present embodiment , the bolt 70 is
50 is fixed to the connector housing 10. Also,
The bolted connector 2 includes a bolt holding housing 30.
No locking means is provided between the connector housing 10 and the connector housing 10. Therefore, when the bolt 50 is excessively tightened with respect to the nut and the bolt 50 is broken at the first constricted portion 54, the bolt holding housing 30 can be easily removed. In addition, since the bolt 50 is not prevented from being removed from the bolt holding housing 30 by a separate stopper, abnormal noise due to vibration of the stopper does not occur when the connector is mounted on an automobile or the like.

Next, bolts tighten type of the present invention in FIG connector
13 shows another embodiment 150 of the filter . This bolted connector
The connector 150 does not have the bolt holding housing 30 shown in FIG. 1, but includes a bolt 121 , a plate-like metal fitting 130 similar to FIG. 4 that engages with the bolt 121 , and a connector housing 152.
Tona Ru. 5, the same components as those shown in FIGS. 1 to 4 are denoted by the same reference numerals as those used in FIGS.

In FIG. 5, the bolt 121 and the bolt 50
Is that a substantially disk- shaped flange 122 is formed integrally with the bolt 121 by rolling or the like above the second constricted portion 56. When the bolt 121 is inserted into the bolt insertion hole 154 of the connector housing 152, the lower surface of the flange 122 abuts on one surface 12, and further entry of the bolt 121 is prevented. Next, the same plate-shaped fitting 13 as in FIG.
0 is pressed toward the bolt 121 in the slit 156 in the connector housing 152. Thereby, the plate-shaped metal fitting 1
The bolts 121 are fixed in the connector housing 152 by the second arc portions 86 of the 30 abutting on the second constricted portions 56. In the preferred embodiment of FIG. 5 , the flange 122 abuts one surface 12 of the connector housing 152, thereby eliminating the need for the bolt holding housing 30. Plate-shaped fitting 130
The projection 132 is formed on the lower surface of the connector housing 152 so that the projection 132 engages with the recess 158 of the connector housing 152 when the plate-shaped metal fitting 130 is completely inserted.

[0018] Having described a preferred embodiment of a bolt-tightened connector of the present invention, the present invention is not limited to the embodiments described above, various modifications if necessary, can be changed. For example, the fixing of the bolts 50 , 121 by the plate-like metal fittings 70, 70 ', 70 ", 130 may be applied to a bolt-fastened connector or the like in which the bolts idle when the fitting of both connectors is completed.

[0019]

According to the invention, a bolt-type connector according to claim 1 is provided.
According to the plan, the plate-shaped fitting cannot accept the large diameter part of the bolt,
A narrow portion having a width capable of receiving the constricted portion of the bolt, and
A slot consisting of a wide part having a width that allows the large diameter part to pass
Having a plate-like shape between the plate-like fitting and the connector housing.
Temporary locking means for locking the metal fitting at the temporary locking position, and sheet metal
The main locking means for locking the tool in the full locking position is formed,
The large diameter part of the bolt passes through the wide part at the temporary locking position
The narrow part accepts the constricted part at the final locking position
To remove the bolt from the connector housing.
Because it is extremely rigid and durable
Bolt replacement is easy, and the plate metal fittings are
Plate shape because it can be held in the
Not only is there no risk of losing brackets, but also in parts management
Bolt type connector that is advantageous and has excellent connector assemblability
This produces an effect that a nectar can be obtained. Bolt holding how
If you do not use the connector, place the connector on the connector housing.
The effect of increasing the degree of freedom in arranging contact wires
There is fruit. In this case, by reducing the number of parts,
Manufacturing and assembly man-hours can be reduced.

[0020] According to the bolt type connector according to the second aspect,
Then, the plate-shaped metal fitting has a bent portion at one end, and
In the housing, the bent portion of the plate-shaped fitting receiving hole is located.
Side has a tool receiving recess, and the plate-shaped bracket is in the final locking position
When the bent part protrudes from the side wall of the connector housing
It is configured so that there is no general
The plate can be easily removed from the final locking position
Careless and careless when the metal plate is in the final locking position
This has the effect of not falling off.

[Brief description of the drawings]

1 is a view not a exploded perspective view of one embodiment of a bolt tighten type connector of the present invention.

FIG. 2 is a cross-sectional view taken along line II-II, showing a state in which the bolted connector of FIG. 1 is assembled.

3A and 3B are a plan view and a plan view, respectively, showing another embodiment of a plate-shaped metal fitting used in the bolt-type connector of FIG.
It is a side view.

FIGS. 4A and 4B are a plan view and a side view, respectively, showing still another embodiment of the plate-shaped metal fitting.

5 is a longitudinal sectional view showing an example of another bolt tighten type connector of the present invention.

[Explanation of symbols]

2, 150 Bolt-tight connector 10, 152 Connector housing 16, 154 Bolt insertion hole 20 Plate-shaped bracket receiving hole 50, 121 Bolt 52 Head 56 Neck 58 Screw part 60 Large diameter 70 ', 70 ", 130 Plate Fitting 80 Arc-shaped groove (narrow part) 82 Wide groove 84 First arc part (wide part) 86 Second arc part (narrow part) 88 Projection (temporary locking means and final locking means) 110 First recess ( Temporary locking means) 112 Second recess ( final locking means)

────────────────────────────────────────────────── ─── Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01R 13/62-13/639

Claims (2)

(57) [Scope of request for utility model registration] 1. A connector housing is mated with a bolt using a bolt.
Bolt-type connector that fits tightly into the connector housing
A bolt, wherein the bolt is provided between a screw portion and a head.
On the shaft, there is a constricted part and a large diameter part larger than the constricted part.
The connector housing has a bolt insertion hole and the bolt.
Has a plate-like metal fitting receiving hole substantially orthogonal to the
The fitting receiving hole is inserted into the narrow portion of the bolt.
The fixing member for retaining the bolt is
Bolted type that slides in a direction substantially perpendicular to the shaft
In the connector, the fixing member cannot receive the large-diameter portion of the bolt.
A narrow portion having a width capable of receiving the constricted portion, and
A slot consisting of a wide part having a width through which the large diameter part can pass
And a connector between the plate- shaped bracket and the connector housing.
A temporary locking means for locking the plate-shaped metal fitting at the temporary locking position;
Formed final locking means to lock the plate-shaped metal fitting at the final locking position
The plate-shaped metal fitting has the diameter of the bolt at the temporary locking position.
Allowing the majority to pass through the wide part, and
The narrow portion receives the constriction at the
The bolt is detachably fixed to the connector housing.
A bolted connector characterized by the following. 2. The plate-shaped bracket has a bent portion at one end.
And the connector housing is provided with the plate-shaped fitting receiving hole.
A tool receiving recess on the side where the bent portion is located,
When the metal plate is in the final locking position, the bent portion
Structure not to protrude from the side wall of the connector housing
The bolted connector according to claim 1, wherein the connector is provided.