JPH10281376A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly and surely connect two parts without using a tool and obtain good workability even in a small work space. SOLUTION: In a connector, two parts 1, 2 are pipe connected to each other. The connector has an insert member 3 mounted in one part 2 and a receiving member 4 mounted in the other part 1 and made capable of inserting the insert member 3. In a fitting surface between the insert member 3 and the receiving member 4, engaging means 34, 41 capable of locking coming-off are provided. The insert member 3 is mounted in one part 2, the receiving member 4 is mounted in the other part 1, thereafter the insert member 3 is inserted to the receiving member 4, by locking coming-off through the engaging means 34, 41, the two parts 1, 2 are pipe connected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for pipe-connecting two parts to each other, for example, for pipe connection of a hose for distribution of fuel or air to an engine block of an automobile.

[0002]

2. Description of the Related Art As a conventional example, a structure for connecting a hose to an engine block by a pipe will be described with reference to FIG.
8A is a perspective view showing a state before hose connection, and FIG. 8B is a perspective view showing a state after hose connection. FIG. 8 (a)
, A connection pipe 130 is attached to the connection port 101 of the engine block 100 by press fitting.
The upper half of the connection pipe 130 projects above the engine block 100 as a hose connection 131. In addition, a bulge portion 131a bulging to the outer periphery is formed at the tip of the hose connection portion 131 of the connection pipe 130.

[0003] The hose connection portion 13 of the connection pipe 130
The end of the hose 120 is fitted into the hose 1 by utilizing its elasticity, and the end of the hose 120 is fastened to the hose connection part 131 by the hose clip 140. As is well known, the hose clip 140 is formed of a metal spring plate material, and has knob pieces 142 projecting radially outward at both ends of an annular clip main portion 141. By gripping both knob pieces 142 with the tool 150, the clip main portion 141 is expanded in diameter (meaning that the caliber increases) by using elasticity, and by releasing the gripping force on the knob pieces 142, the clip main portion 141 is released. The portion 141 is elastically restored, and its diameter is reduced (it means that the diameter becomes smaller) by the restoring force.

[0004]

According to the conventional example,
At the time of assembly, the tool 150 is operated to
A large work space for expanding the diameter is required. Further, the space around the engine block 100 has many restrictions and is often narrow. For this reason, in the conventional example, since work in a restricted narrow work space is inevitable, there remains a problem that workability is poor and connection accuracy is impaired.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to connect two parts quickly and reliably without using a tool. It is an object of the present invention to provide a connector capable of obtaining good workability even in a narrow work space.

[0006]

According to a first aspect of the present invention, there is provided a connector for pipe-connecting two parts to each other, comprising an insertion member attached to one part and a connector attached to the other part. The connector further comprises a receiving member into which the insertion member can be inserted, and an engagement means capable of preventing the insertion member from coming off at a fitting surface between the insertion member and the receiving member. According to the connector of the first aspect, after the insertion member is attached to one part and the receiving member is attached to the other part, the insertion member is inserted into the receiving member, and the insertion member is prevented from coming off through the engaging means. Two parts are piped. Therefore, two parts can be quickly and reliably connected without using a tool, and good workability can be obtained even in a narrow work space.

According to a second aspect of the present invention, there is provided the connector according to the first aspect, wherein the engaging means comprises an engaging projection and a substantially L-shaped engaging groove, and the insertion and rotation of the insertion member with respect to the receiving member. The connector is characterized in that it is engaged with the connector. According to the connector of the second aspect, the engagement protrusion of the engagement means and the engagement groove can be engaged by a simple operation such as insertion and rotation of the insertion member with respect to the receiving member.

According to a third aspect of the present invention, there is provided the connector according to the second aspect, wherein the engaging groove is provided with a locking projection for stopping the engaging projection from returning. According to the connector according to the third aspect, since the engagement projection is stopped by the engagement projection of the engagement groove, it is possible to prevent the engagement means from being disengaged due to an unexpected return of the engagement projection. it can.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments 1 and 2 of the present invention will be described. Embodiment 1 Embodiment 1 will be described with reference to FIGS. In this embodiment, a connector for connecting a hose to an engine block will be described.
FIG. 1 is a perspective view showing a state before the connection of the connector.
The connector includes an insertion member 3 attached to a hose 2,
And a receiving member 4 attached to the engine block 1.

The insertion member 3 will be described with reference to the perspective view of FIG. The insertion member 3 is made of a synthetic resin molded product and has a substantially hollow cylindrical shape. The insertion member 3 has a hose connection portion 31 at an upper half in the drawing and an insertion portion 32 at a lower half in the drawing. A bulge portion 31a bulging to the outer periphery is formed at the tip (the upper end in the figure) of the hose connection portion 31. On the other hand, an O-ring groove 33 formed of an annular groove for fitting the sealing O-ring 35 is formed on the outer peripheral surface of the distal end (the lower end in the figure) of the insertion portion 32. A pair of engaging projections 34 are provided on the outer peripheral surface of the base of the insertion portion 32 so as to project in the diameter direction. The engagement protrusion 34 is formed in a triangular prism shape having a substantially triangular cross section having a downwardly directed top portion 34a. Note that the outer periphery of the distal end of the insertion portion 32 is chamfered.

Next, the receiving member 4 will be described with reference to the explanatory view of FIG. 6, (a) is a perspective view, (b) is a broken perspective view, and (c) is a developed view of an inner peripheral surface. FIG.
The receiving member 4 shown in (a) and (b) is made of a synthetic resin molded product, and is formed in a substantially hollow cylindrical shape having an inside diameter capable of receiving the insertion portion 32 (see FIG. 5) of the insertion member 3. ing. The outer shape of the receiving member 4 is stepped, the lower half of the drawing is formed with an outer diameter that can be pressed into the connection port 1a of the engine block 1, and the upper half of the drawing is the connection port 1a.
The outer diameter is larger than the diameter of A pair of substantially L-shaped engaging grooves 41 are formed at the upper end of the inner peripheral surface of the receiving member 4 in the drawing.

Each of the engagement grooves 41 is described in detail in FIG.
As shown in (c), a vertical groove 41a extends in the axial direction from the end face of the receiving member 4, and a horizontal groove 41b extends in the circumferential direction (rightward in the figure) from the tip (the lower end in the figure) of the vertical groove 41a. . On the lower surface of the lateral groove portion 41b of the engagement groove 41, a substantially convex locking convex portion 42 is provided. The locking projection 42 is formed so that the engagement protrusion 34 is formed in the lateral groove 41 of the engagement groove 41.
When moving to the rear end of b, the downwardly protruding portion 34a of the engagement projection 34 serves to detent the engagement projection 34 after climbing over.

A case where the hose 2 is pipe-connected to the engine block 1 using the above connector will be described.
In advance, as shown in FIG.
A sealing O-ring 35 is fitted to the hose connecting portion 31 using elasticity, and a terminal portion of the hose 2 is fitted to the hose connecting portion 31 using the elasticity. By this, it is fastened to the hose connection part 31. The receiving member 4 is a connection port 1 of the engine block 1.
a.

Thereafter, as shown in a perspective view in FIG. 2, the insertion portion 32 of the insertion member 3 is inserted into the receiving member 4. At this time, the engagement protrusions 34 of the insertion member 3
It is engaged along one vertical groove 41a. Subsequently, the insertion member 3 is rotated with respect to the receiving member 4. As a result, the engagement protrusion 34 moves along the lateral groove 41b of the engagement groove 41, and gets over the locking projection 42 of the engagement groove 41, whereby the engagement is completed, and the retaining state is established ( FIG. 6 (a)). At the same time, the locking projection 42 is
And the engagement state is locked. As described above, the hose 2 is connected to the engine block 1.
Is connected by a pipe. This state is shown in a perspective view in FIG. 3 and a sectional view in FIG. The engagement protrusion 34 and the engagement groove 41
Corresponds to the engagement means of the present invention provided on the fitting surface between the insertion member 3 and the receiving member 4.

Therefore, according to the connector described above, the hose 2 can be quickly and reliably connected to the engine block 1 without using a tool, and good workability can be obtained even in a narrow work space. The attachment of the receiving member 4 to the engine block 1 and the attachment of the insertion member 3 to the hose 2 can be performed in a wide space without restriction.

Further, the engaging projection 34 and the engaging groove 41 can be engaged by a simple operation such as insertion and rotation of the insertion member 3 with respect to the receiving member 4.

The locking projections 42 of the engagement grooves 41 prevent the engagement projections 34 from returning.
Can be prevented from being disengaged by the unexpected return of the engaging means.

Further, by the reverse procedure of the procedure at the time of connection,
It is also possible to remove the hose 2 from the engine block 1.

Second Embodiment A second embodiment will be described with reference to FIG. The second embodiment is the first embodiment.
Since the receiving member 4 is changed, the changed portion will be described in detail, and the portions that are considered to be the same or substantially the same as those in the first embodiment will be assigned the same reference numerals, and redundant description will be omitted. The receiving member (indicated by reference numeral 4A) shown in a perspective view in FIG. 7 is formed of a hollow cylindrical material made of metal, and has an engaging groove 41 formed of a pair of notched grooves at its end. Is formed. The locking projection 42 is
It is provided on the upper surface of the engaging groove 41 instead of the lower surface of the lateral groove portion 41b of the engaging groove 41, and engages with the upper edge of the engaging protrusion 34 to perform the detent of the engaging protrusion 34.

The present invention is not limited to the above embodiment, but can be modified without departing from the spirit of the present invention. For example, the connector of the present invention can be used not only for connection between the engine block 1 and the hose 2 but also for connection between a hose and a hose and between equipment and a hose.
It is also conceivable that the receiving member 4 or the insertion member 3 is formed integrally with the component itself. The arrangement of the engagement protrusions 34 and the engagement grooves 41 may be opposite to the above-described embodiment, that is, the engagement protrusions 34 may be provided on the receiving member 4 and the engagement grooves 41 may be provided on the insertion member 3. The shape of the engagement projection 34 may be a quadrangular prism, a column, a mountain, a hemisphere, or the like, in addition to the triangular prism.

[0021]

According to the connector of the present invention, two parts can be connected quickly and reliably without using a tool, and good workability can be obtained even in a narrow work space.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state before connection of a connector according to a first embodiment.

FIG. 2 is a perspective view showing a state during connection of the connector.

FIG. 3 is a perspective view showing a connection state of a connector.

FIG. 4 is a sectional view of the same.

FIG. 5 is a perspective view of an insertion member.

FIG. 6 is an explanatory diagram of a receiving member.

FIG. 7 is a perspective view showing a receiving member according to the second embodiment.

FIG. 8 is an explanatory diagram of a conventional example.

[Explanation of symbols]

 Reference Signs List 1 engine block (part) 2 hose (part) 3 insertion member 4 receiving member 34 engagement protrusion 41 engagement groove 42 locking projection

Claims (3)

[Claims] 1. A connector for pipe-connecting two parts to each other, comprising: an insertion member attached to one part; and a receiving member attached to the other part and capable of inserting the insertion member. A connector characterized in that an engaging means capable of retaining the member is provided on a fitting surface between the member and the receiving member. 2. The connector according to claim 1, wherein the engaging means comprises an engaging projection and a substantially L-shaped engaging groove, and is engaged by inserting and rotating the insertion member into the receiving member. The connector characterized by the above. 3. The connector according to claim 2, wherein a locking projection is provided in the engagement groove for stopping the engagement projection.