JP4024611B2 - Towing vehicle connector mounting structure and mounting method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure and method for attaching a tow vehicle connector for attaching a tow vehicle connector to a bracket.
[0002]
[Prior art]
In a tow vehicle, a vehicle body side connector used for an automotive wire harness for a so-called towing hitch that electrically connects a towed object such as a trailer and the vehicle body is prepared by a general user in the market. The shape and dimensions are standardized by SAE (American Automotive Engineers Association) standard or JIS (Japanese Standards Association) standard so that it can be electrically connected to the wire harness on the towed side. Is secured. For example, in the United States, “7-Way Connector” marketed by several manufacturers is a de facto industry standard.
[0003]
FIGS. 13 to 16 are diagrams illustrating the tow vehicle connector C ′ of the “7-Way Connector”. For example, as shown in FIGS. 13 and 14, the electric wire 1 from the vehicle main body side is fastened and fixed to the terminal 3a inserted into the connector main body 3 with the screw 2, and connected to the internal terminal, As shown in FIG. 16, the connecting portion 11 to the to-be-to-be-targeted connector (not shown) is formed in a cylindrical shape, and the connecting portion 12 to the vehicle-side connector is formed in a rectangular shape (US Pat. No. 5,800,188). As described above, both the connection portion 21 to the vehicle side connector (not shown) and the connection portion 22 to the trailer side connector (not shown) are formed in a cylindrical shape (USCAR: standard product of the American Automobile Research Council) There is.
[0004]
In these tow vehicle connectors C ′, flanges 25 are formed so as to project outward, and bolt holes 25 a are formed in the flanges 25. The tow vehicle connector C ′ is attached to a bracket 27 on the vehicle 26 side as shown in FIG. Specifically, insertion holes 27a into which the tow vehicle connector C ′ is inserted are formed in the central portion of the body plate 27f of the bracket 27, and flanges 25 are formed at the four corners of the body plate 27f of the bracket 27. A bolt hole 27b associated with the bolt hole 25a is formed. The bolt 29 is passed through the bolt hole 25 a of the flange 25 and the bolt hole 27 b of the bracket 27 and fastened, whereby the tow vehicle connector C ′ is fixed to the bracket 27. Further, an upper plate 27c is formed at the upper end portion of the main body plate 27f of the bracket 27 so as to extend in a direction perpendicular to the plate surface of the main body plate 27f. A hole 27d is formed. Then, when the connecting rod 28 protruding upward from the vehicle 26 is loosely penetrated into the free hole 27d, and the connecting rod 28 is connected to the loose hole 27d of the connecting rod 28 by the weight of the bracket 27, The plate surface of the main body plate 27f of the bracket 27 is arranged in the vertical direction, so that the tow vehicle connector C ′ can be held in a state directed to the to-be-towed object.
[0005]
[Problems to be solved by the invention]
In the above-described conventional technique, there is no mechanism for holding (temporarily fixing) the tow vehicle connector C ′ to the bracket 27 after fitting the tow vehicle connector C ′ to the insertion hole 27a of the bracket 27. The connector C ′ will float with respect to the bracket 27. For this reason, when the flange 25 is fastened to the bracket 27 with the bolt 29, it is necessary to work while pressing the tow vehicle connector C ′ against the bracket 27 side by hand.
[0006]
Further, since the tow vehicle connector C ′ is easily lifted with respect to the bracket 27 as described above, four bolts 29 are used to prevent the tow vehicle connector C ′ from rattling with respect to the bracket 27. Therefore, it took a great amount of time to fasten and fix the four bolts 29.
[0007]
In view of this, an object of the present invention is to provide a tow vehicle connector mounting structure and mounting method that can be easily mounted on a bracket.
[0008]
[Means for Solving the Problems]
In order to solve the above-described problems, the invention according to claim 1 is directed to a tow vehicle connector formed by extending a support flange on a part of the outer periphery of a substantially cylindrical housing, and the support flange is disposed on the vehicle body side. A structure for mounting a tow vehicle connector to be attached to a bracket provided in the bracket, wherein the bracket is fitted to a flange support piece with an insertion notch capable of inserting the outer peripheral portion of the housing from one direction and an engagement for temporary fixing. A flexible piece disposed in parallel to the supporting flange with a gap inserted between the supporting flange and the flange for supporting the flange. An engagement piece that is disposed in a direction in which the flange support piece is inserted relative to the flexible piece, and that is formed with an engagement groove that is open on the flexible piece side, and the outer peripheral portion of the housing is inserted into the engagement piece. for By inserting the flange support piece into the gap so as to be fitted into the notch from one direction, the flexible piece is elastically engaged with the engagement state while the engagement protrusion is fitted in the engagement groove. It is a combination.
[0009]
A second aspect of the present invention is the structure for mounting a tow vehicle connector according to the first aspect, wherein the engaging protrusion is guided to a surface of the flexible piece opposite to the engaging piece. The flexible piece itself is formed with a taper for elastic deformation to the opposite side of the supporting flange.
[0010]
A third aspect of the present invention is the structure for mounting a tow vehicle connector according to the first or second aspect, wherein the engagement protrusion is swelled to the opposite side of the supporting flange. It is formed in an arc shape.
[0011]
According to a fourth aspect of the present invention, there is provided the structure for mounting a tow vehicle connector according to the first to third aspects, wherein bolt holes are formed at positions corresponding to each other of the supporting flange and the flange supporting piece. The support flange can be fastened and fixed to the flange support piece by a bolt through the bolt hole.
[0012]
Invention of Claim 5 is an attachment method which attaches the connector for tow vehicles of Claim 4 to the bracket, The flange support piece of the bracket is inserted in the gap of the connector for tow vehicles, While the flexible piece is elastically deformed in the direction opposite to the supporting flange, the engaging protrusion is passed between the flexible piece and the supporting flange, and then the engaging protrusion is engaged. A step of temporarily fixing the tow vehicle connector to the bracket by elastically returning the flexible piece when the flexible piece is inserted into the groove; and the bolt, the supporting flange and the bracket in the temporarily fixed state. A step of permanently fixing the tow vehicle connector to the bracket by passing through the bolt hole and fixing the bolt.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
<Basic structure of tow vehicle connector>
First, a basic structure of a tow vehicle connector C according to an embodiment of the present invention will be described. 1 is an exploded perspective view showing the tow vehicle connector, FIG. 2 is a sectional view thereof, FIG. 3 is a front view thereof, FIG. 4 is a side view thereof, and FIG.
[0014]
This tow vehicle connector C is used for an automotive wire harness for a so-called towing hitch that electrically connects a to-be-towed object such as a trailer and the vehicle body, and is shown in FIGS. As described above, the housing 30, the connectors 32 (not shown) of the to-be-towed object side wire harness and the terminals 32 and 33 as the metal pieces 31 connected to the vehicle body side wire harness 35 in the housing 30, A terminal holder 34 for holding and fixing the terminals 32, 33, a retainer 36 that holds the shape of the vehicle main body side wire harness 35 in the housing 30, and a connection portion between the vehicle main body side wire harness 35 and the terminal 33 are connected to the housing 30. Protector 37 for protecting from the outside, between the inner periphery of the housing 30 and the outer periphery of the terminal holder 34 The combined and a O-ring 38 for holding the watertight housing 30.
[0015]
The housing 30 is formed by using a general industrial plastic and is molded, and includes a first connection body 41 having a substantially cylindrical shape on the rear side connected to the to-be-drawn target side wire harness, A second connection body 42 having a substantially cylindrical shape that is disposed on the front side opposite to the connection body 41 and connected to the vehicle body-side wire harness 35, and for supporting the housing 30 to the vehicle body. The flange 43 is integrally formed.
[0016]
The first connection body 41 is formed in a substantially cylindrical female shape so that the male to-be-drawn object-side wire harness is inserted, and a support flange 43 described later is formed on the outer peripheral portion. An opening 41a is formed at the end. At the upper end of the opening 41a, a lid 44 for closing the opening in a state where the connector (not shown) of the to-be-drawn target side wire harness is not connected is rotatable via a hinge 45. It is attached. The hinge 45 is pivotally supported by a bearing 45b formed at the upper end of the first connecting body 41 with a pivot shaft 45a protruding outward from the end of the lid 44. The lid body 44 biases the lid body 44 in a direction to close the opening 41a of the first connection main body 41 by a winding spring 45c wound around the outer periphery of the shaft 45a.
[0017]
The second connection main body 42 is formed in a substantially cylindrical female shape so that the vehicle main body side wire harness 35 is directly inserted, and the rear end is integrally coupled to the first connection main body 41. As shown in FIG. 3, an inner frame 46 is formed on the inner periphery of the front end portion 42 a of the second connection main body 42, and the vehicle main body side wire harness 35 with the end portion peeled off on the inner frame 46. A plurality of positioning holes 46a for inserting and positioning the core wire end portions are formed.
[0018]
The support flange 43 is a trapezoidal support plate fixed to the bracket 61 as will be described later. Bolt holes 47 are formed at both ends of the lower end of the support flange 43. Is filled with an annular collar 48 for reinforcement.
[0019]
As shown in FIG. 2, each of the terminals 32 and 33 is formed by bending a single metal piece 31 and is press-fitted into a terminal holder 34 described later. The first terminal 32 facing the first connection main body 41 at one end of the metal piece 31 is bent in a substantially wedge shape to form a spring member 51 having a cylindrical radial elasticity. The second terminal 33 at the other end of each metal piece 31 is inserted from the opening 41 a on the first connection body 41 side and faces the positioning hole 46 a of the internal frame 46 of the second connection body 42. So as to be pierced. As a result, the same metal piece 31 can serve as both the first terminal 32 connected to the to-be-traction target side wire harness and the second terminal 33 connected to the vehicle body side wire harness 35.
[0020]
The terminal holder 34 is formed in a circular shape in front view that matches the shape of the inner periphery of the cylindrical first connection body 41, and is formed with press-fitting holes 53 into which six metal pieces 31 are press-fitted. The arrangement of the press-fit holes 53 is set so that the metal pieces 31 are arranged corresponding to the positioning holes 46 a of the internal frame 46 in the second connection body 42.
[0021]
The retainer 36 is formed in a circular shape in front view that matches the shape of the inner periphery of the connecting portion between the cylindrical first connection body 41 and the second connection body 42, and is supported by the terminal holder 34. A plurality of loose insertion holes 36 a for loosely inserting the terminals 33 are formed, and are inserted from the first connection body 41 side to the connection portion with the second connection body 42. Each loose insertion hole 36a of the retainer 36 is disposed so as to correspond to the positioning hole 46a of the inner frame 46 of the second connection main body 42, and the core wire of the vehicle main body side wire harness 35 inserted into the positioning hole 46a from the front end side. And the second terminal 33 are connected in each loose insertion hole 36a.
[0022]
The protector 37 is for protecting the vehicle body side wire harness 35 from the outside in a state where the end portions of the vehicle body side wire harness 35 are inserted into the second connection body 42, and a connection portion that covers the outer peripheral portion of the second connection body 42. A cylindrical body integrally formed with a protective body 37a and a tube protective body 37b that covers a part of the bellows-like corrugated tube 52 for protecting the outer periphery of the vehicle body-side wire harness 35 has a semicircular shape when viewed from the front. A pair of semi-cylindrical bodies 53 a and 53 b divided into two are configured to be freely opened and closed by a hinge portion 54. In particular, the inner periphery of the tube protector 37b has a shape corresponding to the bellows-like corrugated tube 52 for the purpose of preventing water from entering from the outside.
[0023]
The O-ring 38 is inserted into the first connection body 41 and the front end of the terminal holder 34 is pressed into the O-ring 38 so that the terminal holder 34 is fixed in the first connection body 41 and its watertightness is secured. It is for improving the sex. A step portion 56 for abutting the O-ring 38 is formed on the inner periphery of the connecting portion of the housing 30 between the first connection main body 41 and the second connection main body 42.
[0024]
Then, the surface of the gap portion generated in the press-fitting hole 53 in which the metal piece 31 is press-fitted into the terminal holder 34 is filled with a thermosetting sealing material 57, and the water-tightness at that portion is ensured.
[0025]
As shown in FIG. 2, when the vehicle body side wire harness 35 is inserted into the positioning hole 46a of the internal frame 46 of the second connection body 42, as shown in FIG. A separate type rubber plug (waterproof member) 59 for closing the positioning hole 46a is used in advance.
[0026]
Further, the tow vehicle connector C is provided with a part of engaging means (attachment structure) for engaging with the bracket 61 before the bolt 65 is tightened, and this structure will be described later.
[0027]
<Bracket structure>
As shown in FIGS. 6 and 7, the bracket 61 is formed by bending one metal piece substantially vertically to form an inverted L shape in side view, and supports the support flange 43 of the tow vehicle connector C. And a vehicle body engagement piece 63 that is bent at the upper end portion of the flange support piece 62 and extends in a direction orthogonal to the upper end portion to engage with the vehicle body.
[0028]
The flange support piece 62 is a substantially rectangular plate as shown in FIG. 6, and has a substantially open bottom so that the substantially cylindrical first connection body 41 of the tow vehicle connector C can be fitted from below in FIG. 6. A semicircular insertion notch 64 is formed, and at a position corresponding to the bolt hole 47 of the support flange 43, it is fastened and fixed to the support flange 43 with a bolt 65 as shown in FIGS. A bolt hole 66 is formed, and a reinforcing annular collar 67 is inserted into the bolt hole 66.
[0029]
The flange support piece 62 is provided with a part of engagement means (attachment structure) for engaging with the tow vehicle connector C before the bolt 65 is tightened. This structure will be described later. To do.
[0030]
The vehicle body engaging piece 63 corresponds to the upper plate 27c in the prior art shown in FIG. 17, and the function thereof is the same as that of the prior art, so that the description thereof is omitted here.
[0031]
<Engagement means>
Next, engagement means (attachment structure) for engaging the tow vehicle connector C and the bracket 61 with the tow vehicle connector C before the bolt 65 is tightened will be described.
[0032]
As shown in FIGS. 3 to 5 and FIGS. 8 to 12, this engaging means is provided in the vicinity of the front side of the support flange 43 in the outer peripheral portion 41 b of the first connection body 41 of the tow vehicle connector C. A flexible piece 71 projecting parallel to the flange 43 and toward the side, an engagement piece 72 arranged and formed immediately below the flexible piece 71 in the first connection body 41, and the bracket 61 side. And an engaging protrusion 73 that is formed and is inserted into a gap portion between the flexible piece 71 and the engaging piece 72.
[0033]
The flexible piece 71 has elasticity, and when the engagement protrusion 73 of the bracket 61 comes into contact with the upper end portion thereof as shown in FIGS. 4, 5, 8 to 12, the engagement protrusion 73 is provided. A taper 74 is formed so that the flexible piece 71 is elastically deformed toward the second connection body 42 by the pressing force of the engaging protrusion 73. Further, the lower end portion of the flexible piece 71 has a non-tapered rectangular shape in order to prevent the engagement protrusion 73 from coming off upward when the engagement protrusion 73 is engaged therebelow. Is formed.
[0034]
When the engaging protrusion 73 of the bracket 61 is inserted by pushing the flexible piece 71, the engaging piece 72 is positioned and engaged with the engaging protrusion 73, and the engaging protrusion 73 is engaged. An engagement groove 75 is formed in which the engagement protrusion 73 is accommodated when they are combined. The engagement groove 75 faces the flexible piece 71 (upward) so that the engagement protrusion 73 can be received when the engagement protrusion 73 is inserted beyond the flexible piece 71. It is open.
[0035]
Further, a gap S for inserting the flange support piece 62 of the bracket 61 is formed between the flexible piece 71 and the engagement piece 72 and the support flange 43.
[0036]
The engagement protrusion 73 is deformed so that the plate surface of the flange support piece 62 of the bracket 61 is pushed forward, and is formed in an arc shape in cross section, and is possible when the tow vehicle connector C is supported by the bracket 61. It arrange | positions so that the space | gap part comprised by the lower end surface of the bending piece 71 and the engaging groove 75 of the engaging piece 72 may be engaged.
[0037]
<Mounting method>
A method of attaching the tow vehicle connector C shown in FIGS. 2 to 5 to the bracket 61 will be described.
[0038]
First, the tow vehicle connector C is brought closer to the insertion notch 64 of the bracket 61 from below, and the outer peripheral portion 41 b of the first connection body 41 of the tow vehicle connector C is inserted into the insertion notch 64.
[0039]
At this time, the flange support piece 62 of the bracket 61 is inserted into the gap S formed between the support flange 43 of the tow vehicle connector C and the flexible piece 71 and the engagement piece 72.
[0040]
When the tow vehicle connector C is moved upward (in the direction P in FIG. 10) with respect to the bracket 61 within the fitting notch 64, the lower portion of the engagement protrusion 73 having an arcuate cross section formed on the bracket 61. Comes into contact with the taper 74 of the flexible piece 71.
[0041]
In this state, when the tow vehicle connector C is moved further upward (P direction), the engagement protrusion 73 pushes the taper 74 of the flexible piece 71 in the Q direction as shown in FIG. The bending piece 71 is elastically deformed in the Q direction. In this way, while the engaging protrusion 73 pushes the flexible piece 71, the flexible piece 71 slides on the abdomen of the engaging protrusion 73 and passes upward (P direction).
[0042]
Then, as shown in FIG. 12, when the lower end of the flexible piece 71 exceeds the upper portion of the engaging protrusion 73, the flexible piece 71 is elastically returned in the R direction in the drawing. At this point, the engagement protrusion 73 engages with a gap portion formed by the lower end surface of the flexible piece 71 and the engagement groove 75 of the engagement piece 72.
[0043]
Thereafter, unless the flexible piece 71 is elastically deformed in the Q direction in FIG. 11, the engagement protrusion 73 is formed from the gap portion formed by the lower end surface of the flexible piece 71 and the engagement groove 75 of the engagement piece 72. It will not come out (temporarily fixed).
[0044]
Therefore, it is possible to prevent the floating of the tow vehicle connector C from the bracket 61 before the final fixing with the bolt 65.
[0045]
Thereafter, by passing a common bolt 65 through the bolt hole 47 formed in the support flange 43 of the tow vehicle connector C and the bolt hole 66 formed in the bracket 61, and tightening the bolt 65, The tow vehicle connector C is firmly fixed and supported by the bracket 61 (mainly fixed state). At this time, before using the bolt 65, the tow vehicle connector C is temporarily fixed to the bracket 61 by the engaging means (the flexible piece 71, the engaging piece 72, and the engaging protrusion 73) as described above. Therefore, for example, unlike the conventional case where the tow vehicle connector C is pressed against the bracket 61 with one hand and the bolt 65 is tightened with the other hand, the bolt 65 can be tightened with both hands. Become.
[0046]
Further, by engaging with the engaging means, the number of bolts 65 to be used can be reduced as compared with the prior art. Specifically, only two bolts 65 are used as in this embodiment. The tow vehicle connector C can be firmly fixed to the bracket 61 by the engagement by the engagement means. Therefore, the number of parts can be reduced and the cost can be reduced.
[0047]
【The invention's effect】
According to the first, fourth, and fifth aspects of the present invention, when the bracket is inserted into the gap between the flexible piece and the engaging piece and the supporting flange, the flexible piece is supported by the supporting flange. The elastic projection is passed between the flexible piece and the supporting flange while elastically deforming in the opposite direction, and the flexible piece is then elastically restored when the engaging projection is inserted into the engaging groove. Therefore, the tow vehicle connector and the bracket can be easily fixed without using bolts. Therefore, when the tow vehicle connector and the bracket are finally fixed using bolts as in claims 4 and 5, the operation can be performed in the temporarily fixed state, and such an operation is easy. become. In addition, since a certain amount of support and fixing can be performed without using bolts, it is possible to reduce the number of parts by reducing the number of bolts used, thereby reducing the part cost.
[0048]
According to the invention described in claim 2, since the taper is formed on the surface of the flexible piece opposite to the engaging piece, when the engaging protrusion is pressed against the taper of the flexible piece, The flexible piece itself can be easily elastically deformed to the opposite side of the supporting flange, and the engaging projection can smoothly pass through the engaging piece while pushing the flexible piece. Accordingly, it is easy to attach the tow vehicle connector to the bracket.
[0049]
According to the third aspect of the present invention, since the engaging projection is formed in an arc shape in cross section, when the engaging projection is pressed against the flexible piece, the flexible piece itself is supported by the supporting flange. It is easily elastically deformed to the opposite side, and the engaging protrusion can smoothly pass the engaging protrusion while pushing the flexible piece. Accordingly, it is easy to attach the tow vehicle connector to the bracket.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a tow vehicle connector according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a tow vehicle connector according to one embodiment of the present invention.
FIG. 3 is a front view showing a tow vehicle connector according to one embodiment of the present invention.
FIG. 4 is a side view showing a tow vehicle connector according to one embodiment of the present invention.
FIG. 5 is a plan view showing a tow vehicle connector according to one embodiment of the present invention.
FIG. 6 is a rear view showing a bracket for supporting a tow vehicle connector according to one embodiment of the present invention.
FIG. 7 is a side view showing a bracket for supporting the tow vehicle connector according to one embodiment of the present invention.
FIG. 8 is a side view showing a state in which the tow vehicle connector according to one embodiment of the present invention is attached to a bracket.
FIG. 9 is a rear view showing a state in which the tow vehicle connector according to one embodiment of the present invention is attached to a bracket.
FIG. 10 is a sectional view showing the operation of the mounting structure according to one embodiment of the present invention.
FIG. 11 is a sectional view showing the operation of the mounting structure according to one embodiment of the present invention.
FIG. 12 is a sectional view showing the operation of the mounting structure according to one embodiment of the present invention.
FIG. 13 is a perspective view showing a conventional tow vehicle connector.
FIG. 14 is a perspective view showing a state where an electric wire and a terminal are screwed in a conventional tow vehicle connector.
FIG. 15 is a perspective view showing a conventional tow vehicle connector.
FIG. 16 is a perspective view showing a conventional tow vehicle connector.
FIG. 17 is a perspective view showing an operation in which a tow vehicle connector is attached to a bracket in the prior art.
[Explanation of symbols]
C Towing Vehicle Connector 30 Housing 43 Support Flange 61 Bracket 62 Flange Support Piece 63 Car Body Engagement Piece 64 Insertion Notch 65 Bolt 66 Bolt Hole 67 Collar 71 Flexible Piece 72 Engagement Piece 73 Engagement Projection 74 Taper 75 Engagement groove

Claims (5)

Regarding a tow vehicle connector formed by extending a support flange on a part of the outer periphery of a substantially cylindrical housing, the tow vehicle connector is attached to a bracket provided on the vehicle body side. And
The bracket is formed with a notch for insertion and an engagement protrusion for temporary fixing, in which the outer peripheral portion of the housing can be inserted from one direction on the flange support piece,
The tow vehicle connector is
A flexible piece disposed in parallel to the supporting flange with a gap for inserting the flange supporting piece between the supporting flange and the supporting flange;
An engagement piece which is arranged in a direction in which the flange support piece is inserted rather than the flexible piece and has an engagement groove opened on the flexible piece side;
The outer peripheral portion of the housing is inserted into the insertion notch from one direction, and the flange support piece is inserted into the gap, so that the engagement protrusion is fitted in the engagement groove, A structure for mounting a connector for a tow vehicle, characterized in that the flexible piece is elastically engaged with the flexible piece in a retaining state. A structure for mounting a tow vehicle connector according to claim 1,
A taper is formed on the surface of the flexible piece opposite to the engaging piece so that the flexible piece itself elastically deforms on the opposite side of the supporting flange while guiding the engaging protrusion. A towing vehicle connector mounting structure. It is the attachment structure of the connector for tow vehicles of Claim 1 or Claim 2, Comprising:
A structure for mounting a connector for a tow vehicle, wherein the engaging protrusion is formed in a circular arc shape so as to bulge to the opposite side of the supporting flange. It is the attachment structure of the connector for tow vehicles of Claim 1 thru | or 3, Comprising:
A bolt hole is formed at a position corresponding to each other of the supporting flange and the flange supporting piece, and the supporting flange can be fastened and fixed to the flange supporting piece by a bolt through the bolt hole. Mounting structure for tow truck connector. An attachment method for attaching the tow truck connector according to claim 4 to the bracket,
Inserting the flange support piece of the bracket into the gap of the tow vehicle connector and elastically deforming the flexible piece in a direction opposite to the support flange, After passing between the support flange and the engagement protrusion is inserted into the engagement groove, the flexible piece is elastically returned to temporarily fix the tow vehicle connector to the bracket. Process,
A step of permanently fixing the tow vehicle connector to the bracket by passing the bolt through the supporting flange and the bolt hole of the bracket and fixing the bolt in the temporarily fixed state. How to attach the connector.

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