WO2009154181A1

WO2009154181A1 - Connector

Info

Publication number: WO2009154181A1
Application number: PCT/JP2009/060897
Authority: WO
Inventors: 正夫倉光
Original assignee: 株式会社ニフコ
Priority date: 2008-06-16
Filing date: 2009-06-15
Publication date: 2009-12-23
Also published as: KR20090130814A; JP2009299822A; JP5091775B2; KR101039883B1

Abstract

A connector adapted to be inserted and connected to a mounting hole formed in one member which is a member to be connected, and to receive a section to be received of the other member which is a member to be connected. Slits are formed in a side section of the connector to define an elastic section on a part of the side section, and the elastic section is provided with an engaging projection. When the section to be received reaches a reception end position, the elastic section springs back to allow the engaging projection to enter a section to be engaged formed in the section to be received. The top of the engaging projection is located at a position beyond an intermediate point between the inner surface of the elastic section and that inner surface of the side section of the connector which is opposed to the inner surface of the elastic section, that is, a position closer to the opposed inner surface of the side section of the connector.

Description

Connector

The present invention relates to an improvement of a connector that is attached to one member to be connected and receives a part of the other member to be connected and engages with the member to connect both members.

Both of these members are attached by being fitted into a mounting hole provided in one of the members to be connected, and by receiving a part of the other member to be connected inside in this attached state and engaging with it. There are some which are shown by

patent documents

1 and 2 as a connecting tool which connects.

However, there are many cases where it is necessary to separate the two members connected in this way. For example, when this type of connector is used for connecting each member constituting an automobile, the members are once connected. The connection shown in

Patent Documents

1 and 2 is accepted in cases where the connection must be released and connected again for adjustment of assembly with other members. Since the elastic engagement part for the part of the other member to be connected is inside the bag-shaped connection tool, it is difficult to bend the elastic engagement part so as to cause the release of the connection, When a part of the other member to be connected was extracted, it was easy to cause damage such as scraping on the elastic engagement portion. Such an elastic engagement portion is easily elastically deformed. For example, if it is configured to be thin, it is easy to release such connection, but if this is done simply, it is difficult to stably maintain such a connected state.

Japanese Patent Publication No.62-12897 JP-A-8-210335

The main problem to be solved by the present invention is that, in this type of connector, it is possible to solve the connection in a manner that does not cause damage to the connector as much as possible without impairing the connection state. It is in the point to make.

In order to achieve the above object, in the present invention, the connector is inserted into an attachment hole provided in one member to be connected and attached to the one member,
A connector configured to receive a receiving portion of the other member to be connected inside,
A part of the side portion of the connector is made into an elastic piece by a slit provided on the side portion, and the elastic piece is bent back on the elastic piece at the receiving end position of the receiving portion. A hooking protrusion is provided that enters into the hooked part formed in the part and is hooked.
And the top part of the latching protrusion shall be located in this opposing side part side exceeding the intermediate position between the inner surface of an elastic piece, and the inner surface of the side part which opposes this.

According to such a configuration, from the state where the coupling tool is attached to the mounting hole of one member to be coupled, the receiving portion of the other member to be coupled to the inside of the coupling tool is received. While allowing by the bending, the elastic piece is bent back at the receiving end position of the receiving part to the connector, and the hooking protrusion is hooked to the hooking part formed in the receiving part, and the one member The other member can be connected together through a connector. Since the top part of the hooking protrusion is located on the side of the elastic piece that faces the inner surface of the elastic piece beyond the intermediate position, the hooking margin of the receiving part with respect to the hooked part is along the insertion direction of the receiving part. Further, the engagement state can be secured in a wide range from one side to the other side across the virtual insertion center line, and the engagement state is stably secured. On the other hand, the elastic piece is composed of a part of the side portion of the coupling tool, and the elastic piece can be bent outward without limitation around the base side, so that it can be inserted into the coupling tool to the reception end position. Damage that may affect the reuse of the connector on the hooking protrusion by applying a certain force in the pull-out direction to the received member (that is, when the connector receives the receiver again) Therefore, the hooking protrusion can be extracted from the hooked portion by bending the elastic piece without causing a reduction in the holding force of the receiving portion. As a result, the connecting tool can be reused with little trouble, and for example, when the connecting tool is used for connecting the members constituting the automobile, the members can be easily separated and separated at the time of disassembly.

According to the connector according to the present invention, the elastic piece for allowing the receiving portion of the other member to be connected to be allowed to be bent and allowing the non-receiving portion to be hooked to the non-receiving portion by bending back is provided on the side of the connector. The engaging projection is configured to be a part of the portion, and the top portion is positioned on the opposite side portion beyond the intermediate position between the inner surface of the elastic piece and the inner surface of the side portion facing the elastic protrusion. Since it is formed, the connection can be unreasonably unraveled in a manner that does not cause damage such as scraping of the engaging protrusion as much as possible without impairing the connected state by the engaging.

The perspective view which showed the use condition of the coupling tool Cross section Plan view Perspective view of connector The perspective view of a connector (the figure which looked at the connector represented by FIG. 4 from the opposite side) Front view Rear view Plan view Bottom view Same side view AA line sectional view in FIG. FIG. 7 is a sectional view taken along line BB in FIG. 6.

Hereinafter, the best mode for carrying out the present invention will be described with reference to FIGS.

Here, FIG. 1 to FIG. 3 show a state where one member F to be connected and the other member W are connected together using a connector J configured by applying the present invention, 2 to 12 show such a connector J, respectively.

The connecting device J according to this embodiment is attached to one member F to be connected and receives a part of the other member W to be connected and engages with the two members F, W is connected.

The connector J is inserted into the attachment hole Fa provided in the one member F to be connected and is attached to the one member F, and the receiving portion Wa of the other member W to be connected inside. Configured to accept.

In the example shown in the figure, the connector J has a rectangular tube shape in which the tube end 1 ′ is opened and the tube end 1 ′ is provided with an outer casing 2 so as to go around the opened tube end 1 ′. A main body 1 is provided. The receiving portion Wa is received in the main body 1 from the open cylinder end 1 ′ of the main body 1.

In the example shown in the figure, the other member W to be connected is composed of a thick metal wire Wb (wire) having a circular cross section, and the received portion Wa is a part of the wire Wb. It is configured by molding. In the illustrated example, a part of the wire Wb is bent out in a direction perpendicular to the straight portion Wba from the straight portion Wba around the frame Fb constituting the one member F to be connected, and the drawing portion It is further bent to form a bowl shape. The hook-shaped portion Wbb is configured so that the two wire rods Wb are arranged substantially parallel to each other from the hook base portion Wbc to the hook tip Wbd with a gap in the extending direction of the straight portion Wba. The rod Wbd is formed by curving the wire Wb in an arc shape so that the outer side is the curved outer side. (Figure 1)

In the example shown in the drawing, the other member W to be connected is inserted into the rod-shaped portion Wbb so that the rod-shaped frame Fb constituting the one member F to be connected is inserted into the other member W. This is combined with the member F. The connector J is attached to a plate-like bracket Fc provided so as to protrude laterally from the frame Fb applied to the frame Fb, receives the hook-like part Wbb, and engages with the hook-like part Wbb. The combined state of the members F and W is maintained. In other words, in the illustrated example, the hook tip Wbd side of the hook-shaped part Wbb functions as the receiving part Wa. (Figure 1)

In the illustrated example, the main portion 1 of the connector J includes a pair of

wide side portions

3 and 3 and a pair of

narrow side portions

4 and 4 and has a flat cylindrical shape. Each of the inner surfaces 4a of the pair of

narrow side portions

4 and 4 is a curved surface following the outer shape of the wire Wb. The dimension between the inner surfaces 3a of the pair of

wide side portions

3 and 3 is larger than the outer diameter of the wire Wb, but the receiving portion Wa is made to be the pair of wide side portions 3 by the guide portion 10 described later. The center line x of the wire Wb is positioned approximately at an intermediate position x ′ between the three inner surfaces 3a so that it can be received by the connector J. (Figure 2)

In the example shown in the drawing, the connector J is connected to the other end 1 ”of the cylinder of the main body 1 in a mounting hole Fa formed in the bracket Fc and having a hole shape following the outer shape of the main body 1 of the connector J. By inserting the outer flange 2 from the side to the position where it is hooked, the bracket Fc can be attached to the bracket Fc with one touch.In the illustrated example, each of the pair of

wide side portions

3 and 3 is connected to the side portion. The elastic engagement piece 5 is formed by a slit 5a provided in a penetrating manner in 3. The slit 5a has a wide side portion so that the other end 1 ″ of the cylinder of the main body 1 is the base of the elastic engagement piece 5. 3 is a substantially U-shaped split groove provided on the cylinder end 1 ′ side of the main body 1. A bulging portion 5 b is formed on the outer side of the elastic engagement piece 5. The distance between the tops of the bulging portions 5b of the left and right elastic engagement pieces 5 is slightly larger than the dimension on the short side of the mounting hole Fa, and insertion of the connector J into the mounting hole Fa is performed in this mounting hole Fa. This is permitted by the inward bending of the elastic engaging piece 5 with the bulging portion 5b in contact with the hole edge. When the connector J is inserted into the mounting hole Fa up to the insertion end position where the top of the bulging portion 5b is pulled out of the mounting hole Fa, the elastic hooking piece 5 is bent back and the bracket between the outer rod 2 and the bulging portion 5b. The connector J is attached to the bracket Fc with the Fc interposed therebetween. (FIG. 2) In the illustrated example, one end of the main body 1 is integrally connected to the outer casing 2 and protrudes to the side on the wide side section 3 side. 2 is provided with an elastic protrusion 6 that is inclined in a direction closer to the bulging portion 5b side than the surface directed to the bulging portion 5b side in FIG. 2, and the main body portion in a state where the connector J is attached as described above It is possible to prevent the elastic protrusion 6 from rattling in the direction of one cylinder axis. (FIG. 2) The elastic protruding pieces 6 are provided at two locations on the pair of

wide side portions

3 and 3 side of the main body portion 1 with a space on the center side of the wide side portion 3, respectively. In one wide side portion 3, a base portion is integrally connected to the cylindrical end 1 ′ of the main portion 1 between the two

elastic protrusions

6 and 6, and rises in a direction away from the cylindrical end 1 ′ and rises up. Is provided with an upright piece 7 provided with a protruding portion 7a protruding outward.

A part of the side part of the connector J, in the illustrated example, one part of the pair of

wide side parts

3, 3 is formed as an elastic piece 8 by a slit 8 a provided in the side part 3, The elastic piece 8 is provided with a hooking protrusion 8d that enters and engages with the hooked portion Wc formed in the receiving portion Wa by the return of the elastic piece 8 at the receiving end position of the receiving portion Wa. ing. At the same time, the apex 8g of the engaging projection 8d is an intermediate between the inner surface 8h of the elastic piece 8 and the side portion facing this, that is, the other inner surface 3a of the pair of

wide side portions

3 and 3. It is positioned on the other side of the pair of

wide side portions

3 and 3 beyond the position x ′.

In the example shown in the drawing, one of the pair of

wide side portions

3, 3 extends from the vicinity of the cylinder end 1 ′ of the main body 1 to a position that is about two thirds of the dimension of the main body 1 in the cylinder axis direction. Further, a pair of longitudinally dividing grooves 8b extending along the cylinder axis of the main body 1 and spaced apart in the longitudinal direction of the main body 1 from the other longitudinally dividing

groove

8b, 8b and a curved shape formed so as to extend between the groove end of the main portion 1 on the cylinder other end 1 ″ side of the pair of longitudinally divided

grooves

8b and 8b and to have the other end 1 ″ side of the cylinder as a curve outer side. The split groove 8c forms a plate-like elastic piece 8 having the outer flange 2 side as a base and the other end 1 "of the main body 1 as a free end 8i. 8 h side, and on the free end 8 i side, the hook protruding from the inner surface 8 h to the other side of the pair of

wide side portions

3, 3 Projection 8d is formed.

Thereby, in this embodiment, from the state in which the connector J is attached to the attachment hole Fa of one member F to be connected, the other member to be connected to the inside of the connector J The receiving portion Wa of W is allowed to be accepted by the bending of the elastic piece 8, and is formed in the receiving portion Wa by the bending back of the elastic piece 8 at the receiving end position of the receiving portion Wa to the connector J. The hooking protrusion 8d is hooked to the hooked portion Wc so that the one member F and the other member W can be connected to each other via a connector J. Specifically, in the illustrated example, on the side of the hooking protrusion 8d facing the cylinder end 1 ′ side of the main body 1, the tube of the main body 1 gradually increases toward the top 8g of the hooking protrusion 8d. An inclined surface 8j is formed so as to approach the other end 1 ″ side. (FIG. 11) The flange tip Wbd side of the flange-shaped portion Wbb as the supported portion is inserted from the cylinder one end 1 ′ side of the connector J. Then, the curved portion Wbe of the heel tip Wbd abuts against the inclined surface 8j so that the elastic piece 8 is smoothly bent outward, and the hook-like portion Wbb is engaged with the inside of the curved portion Wbe. When the receiving portion Wa is inserted into the connector J up to the position where the portion 8d enters, the elastic piece 8 is bent back and enters and engages with the inner side of the flange-shaped portion Wbb on the side of the flange tip Wbd. That is, in the illustrated example, the hook-shaped portion Wbb The inner side of the tip Wbd side functions as the hooked portion Wc, and the top 8g of the hooking projection 8d is on the side facing the inner surface 8h of the elastic piece 8 beyond the intermediate position x ′. Therefore, the engagement allowance of the received portion Wa with respect to the engaged portion Wc sandwiches a virtual insertion center line along the insertion direction of the received portion Wa, in the example shown, the center line x of the wire Wb The engagement state can be secured stably in a wide range from one side to the other side, while the elastic piece 8 is constituted by a part of the side portion of the connector J, and the elastic piece. Since 8 can be bent outward without limitation around the base side, by applying a force in a certain extraction direction to the receiving portion Wa inserted into the connector J to the receiving end position. Reconnect the connector J to the hooking projection 8d. The elastic piece without causing any damage that would affect the use (that is, the scraping to the extent that the holding force of the receiving portion Wa is lowered when the receiving portion Wa is received again by the connector J). 8 can be extracted from the hooked portion Wc by bending 8. The connector J can be reused with little trouble and, for example, for connecting each member constituting the automobile. When the connector J is used, each member can be easily separated and separated at the time of disassembly.

In this embodiment, the hooking protrusion 8d is directed to the hooking portion of the receiving portion Wa to the hooked portion Wc, that is, toward the cylinder other end 1 ″ side of the main portion 1 in the hooking protrusion 8d. The side is a curved surface 8f substantially along the conical surface of a virtual cone with the apex 8g side of the hooking protrusion 8d as the apex side, and the hooking protrusion 8d engages the hooked part Wc of the receiving part Wa. The portion is an inclined surface 8e, whereby, in this embodiment, when the receiving portion Wa that has been inserted into the connector J up to the receiving end position is extracted as described above, The elastic piece 8 is easily deflected outward in the direction of releasing the engagement, and the engagement portion of the engagement protrusion 8d is further hardly damaged.In the illustrated example, the engagement portion Wc is formed by the curved portion Wbe. The bay is also located in this bay Parts has a curved surface that follows the curvature of the WBE, so that the take function is further enhanced.

Further, in the illustrated example, the other of the pair of

wide side portions

3 and 3 of the main body portion 1 is between the base portion of the elastic engagement piece 5 and the other end 1 ″ of the cylinder portion 1 ″ of the main body portion 1. A rectangular window hole 9 is formed so as to face 8d to the outside, and the extraction of the receiving portion Wa inserted into the connector J to the receiving end position is made through the window hole 9 and the top portion 8g of the engaging projection 8d. Can be easily performed by bending the elastic piece 8. Further, the window hole 9 makes it possible to easily form the engaging protrusion 8d inside the main body 1.

Further, in this embodiment, the connector J is provided with a pair of

guide portions

10 and 10 for sandwiching and guiding both side portions along the receiving direction of the received portion Wa, The elastic piece 8 is provided between the pair of

guide portions

10 and 10. In the illustrated example, in one of the pair of

wide side portions

3 and 3 of the main body portion 1, rib-shaped protrusions extending from the cylinder one end 1 ′ to the cylinder other end 1 ″ on both sides of the elastic piece 8. 10a is formed, and on the other of the pair of

wide side portions

3 and 3 of the main body portion 1, rib-shaped protrusions extending from one end 1 ′ of the cylinder to the other end 1 ″ of the cylinder on both sides of the window hole 9 10a is formed. The gap between one rib-like projection 10a of the pair of

wide side portions

3 and 3 of the main body 1 and the other rib-like projection 10a of the pair of

wide side portions

3 and 3 is received. It is made substantially equal to the outer diameter of the wire Wb which comprises the collar tip Wbd side of the collar-shaped part Wbb of the part Wa. As a result, in this embodiment, the receiving portion Wa on the inner side of the connector J places the center line x of the wire Wb at the intermediate position x ′ between the inner surfaces of the pair of

wide side portions

3 and 3. It is accepted by the connector J so as to be substantially positioned so that the engagement state of the engagement protrusion 8d with respect to the engagement portion Wc can be stably maintained.

Further, in this embodiment, the elastic piece 8 is inserted into the attachment hole Fa provided in one member F to be connected to the elastic piece 8 by the slit 5a provided in the elastic piece 8. An elastic engagement piece 5 is formed to be engaged with the hole edge of the mounting hole Fa by bending back. Specifically, in the illustrated example, the elastic engagement piece 5 provided on one of the pair of

wide side parts

3 and 3 which are the formation side of the elastic piece 8 in the main body 1 is the free end 8i of the elastic piece 8. The elastic piece 8 is formed by a part of the elastic piece 8 by the slit 5a so that the side is a base and the base side of the elastic piece 8 is a free end 8i. Thereby, the elastic engagement piece 5 for attaching the connector J to the one member F to be connected is provided on the side where the elastic piece 8 is formed, in a manner that does not hinder the outward deformation of the elastic piece 8. Yes.

The elastic deformation characteristic can be easily imparted to the portion where the bending occurs in the connector J described above by forming the connector J with a plastic material.
The entire contents of the specification, claims, drawings, and abstract of Japanese Patent Application No. 2008-156372 filed on June 16, 2008 are incorporated herein by reference. Incorporate.

Claims

While being inserted into an attachment hole provided in one member to be connected and attached to this one member,
A connector configured to receive a receiving portion of the other member to be connected inside,
A part of the side portion of the connector is made into an elastic piece by a slit provided on the side portion, and the elastic piece is bent back on the elastic piece at the receiving end position of the receiving portion. A hooking protrusion is provided that enters into the hooked part formed in the part and is hooked.
Moreover, the top of the hooking projection is positioned on the side of the opposing side beyond the intermediate position between the inner surface of the elastic piece and the inner surface of the side facing the elastic piece. Connector to do.
The coupling tool according to claim 1, wherein an engagement portion of the receiving portion of the engaging protrusion with the receiving portion is an inclined surface.
The engaging portion of the receiving portion in the engaging protrusion is a curved surface substantially along a conical surface of a virtual cone with the top side of the engaging protrusion as the apex side. The connector according to 1.
An elastic engagement piece that is engaged with the hole edge portion of the mounting hole by bending back at the insertion end position to the attachment hole provided in one member to be connected to the elastic piece by a slit provided in the elastic piece The connector according to claim 1, wherein the connector is formed.
A pair of guide portions for sandwiching and guiding both side portions along the receiving direction of the receiving portion are provided, and an elastic piece is provided between the pair of guide portions. The connector according to 1.