JPS635636B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a positioning structure for attaching a hose to a connected object.

As a conventional positioning structure of this type, there is one shown in FIG. 1, for example, in order to avoid interference with other members. (Nitsun Laurel maintenance manual
1980 edition, P288) That is, 1 is a cylinder body as a connected body, 2 is a hose connected to the cylinder body 1, and a pressure-resistant hose is used. A seat 3 is integrally formed in the cylinder body 1, and a screw hole 5 and a drill hole 6 are provided in the seat surface 4 of the seat 3. The screw hole 5 communicates with a pressure chamber within the cylinder body 1, and the drill hole 6 is a blind hole. A connector 7 is attached to the end of the hose 2, and the connector 7 is formed with a through hole 8 facing the screw hole 5 and a communication hole 9 that communicates the hose 2 and the through hole 8. A projection 11 is provided in a protruding manner on the seat surface 10 of the tool 7. 12 is a bolt, which has a circumferential groove 1 on its shaft circumference.
3 is formed, and a communicating hole 1 at the center of the axis is opened at the tip.
The other opening 14a of No. 4 faces the circumferential groove 13. 15,
16 indicates a washer.

Therefore, these assemblies are performed by attaching seat surface 1 to seat surface 4.
Attach the connector 7 to the washer 16 on the seat 3 so that the
Join via. At this time, the connector 7 is positioned relative to the cylinder body 1 by fitting the protrusion 11 into the drill hole 6 and engaging the tip of the bolt 12 passed through the washer 15 and the through hole 8 with the screw hole 5. After that, tighten the bolt 12 to fix it. Then, the fluid supplied from the hose 2 is supplied to the pressure chamber in the cylinder body 1 via the communication hole 9, the circumferential groove 13, the opening 14a, and the communication hole 14.

However, in the case of such a conventional positioning structure, there are two steps: providing a hole for protruding the protrusion 11 in the connecting tool 7, press-fitting and fixing the protrusion 11 into the hole, and providing a drill hole 5 in the seat 3. This has the disadvantage of increasing processing costs. Further, since only one position is determined by the protrusion 11 and the drill hole 5, this does not mean that the through hole 8 immediately matches the screw hole 5. Therefore, there is a problem in that additional work is required to match these when connecting the hose 2.

The present invention has been made by focusing on such conventional problems, and involves attaching one hose to a connecting device having a seating surface and oriented diagonally to the seating surface, and connecting this connecting device to In a hose connection structure in which one hose is connected to a connected object by seating the seat on the seat of the connected object and fixing the seat to the connected object, A first surface substantially perpendicular to the seat surface and a second surface substantially perpendicular to the seating surface and not parallel to the first surface are provided on the connecting tool, and It is an object of the present invention to solve the above-mentioned conventional problems by forming first and second connection surfaces that are individually joined to the surfaces of the hose and positioning the hose relative to the object to be connected.

Hereinafter, the present invention will be explained based on the drawings. Second
The following figures are diagrams showing one embodiment of the present invention.

First, to explain the configuration, 1 is a cylinder body as a connected body, 2 is a hose communicating with the cylinder body 1, and the hose 2 is a pressure-resistant hose. Seat 2 is integrated into cylinder body 1.
0 is provided, and a screw hole 22 is provided in the seat surface 21, and the screw hole 22 communicates with a pressure chamber within the cylinder body 1. Further, the seat 20 is provided with a convex portion 23 projecting substantially perpendicularly from the seat surface 21 on one side of the seat surface 21, and a first surface 24a is formed on the seat surface 21 side of the convex portion 23. is provided with an arc-shaped curved surface centered on the hole center of the screw hole 22, and this is formed on the second surface 24.
b.

Connect the connector 25 to the pipe 26 at the end of the hose 2.
Install via. One end of the pipe 26 is connected to the hose 2
The pipe 26 and the hose 2 are fixed by caulking the tubular metal fitting 27 which is fitted inside the hose 2 and externally fitted onto the hose 2, and the other end of the pipe 26 is brazed or welded to the connector 25. The connecting tool 25 is provided with a through hole 28 through which a bolt 12 (to be described later) is passed, and a communication hole 2 is provided in which the through hole 28 communicates with the pipe 26.
9 is formed within the fitting 25. Reference numeral 30 designates a seat surface of the connecting tool 25, and a convex portion 31 that protrudes beyond the seat surface 30 is provided on one side of the seat surface, and a second convex portion 31 is provided on the side of the seat surface 30.
A first joint surface 32b is provided on the side surface of the connector 25, and a first joint surface 32a is provided on the side surface of the connector 25. With the threaded hole 22 of the cylinder body 1 and the through hole 28 of the connector 25 concentric, and with the seating surfaces 21 and 30 joined via the washer 16, the through hole 28 of the hose 2 is centered. When the rotation direction angle is specified, seat 2
The first surface 24a of the seat 20 and the first joint surface 32a of the connector 25 are joined (surface contact), and the second surface 24a of the seat 20
surface 24b and the second joint surface 32b of the connector 25
the first surface 24 so that they are joined (line contact).
a, 32a and second surfaces 24b, 32b are formed.

12 is a bolt, and as shown in FIG. 7, a circumferential groove 13 is formed around the shaft, and an opening 1 is formed at the tip of the shaft.
The other opening 14 of the central continuous hole 14 having 4b
a faces the circumferential groove 13. A connecting tool 25 is provided in the circumferential groove 13.
The communication hole 29 is always visible. 15 indicates a washer between the head of the bolt 12 and the connecting tool 25.

Next, the effect will be explained.

Attach the connector 25 to the hose 2 in advance,
This connector 25 is attached to the seat 20 of the cylinder body 1. In this installation procedure, the seat surface 30 of the connector 25 is joined to the seat surface 21 via the washer 16 so as to face each other.
This determines the positions in directions A and B shown in FIG. With the seating surfaces 21 and 30 joined, next, the first surface 24a and the first joint surface 32
Join (surface contact) a. By this, the 6th
C and D shown in the figure, and E centered on the through hole 28,
The position in the F direction is determined. And the second surface 24b
and the second joint surface 32b are joined (line contact). This determines the position in the G and H directions shown in FIG. To join these surfaces, connect the connector 25 to the seat surface 2.
1 and by moving the connecting tool 25 slightly once or twice, whereby the seat 20
The position of the fitting 25 with respect to the three-dimensional direction is determined. Therefore, in this state, the screw hole 22 and the through hole 28 are in a concentric position.
Therefore, if the bolt 12 is inserted into the through hole 28 with the washer 15 interposed, and screwed into the screw hole 22,
The hose 2 is connected to the cylinder body 1, and the sixth hose 2 is connected to the cylinder body 1.
The angles in directions E and F shown in the figure are also determined, and the connecting tool 25 is fixed to the cylinder body 1. In this case, both the first and second surfaces and the first and second joint surfaces can be molded without requiring a separate process when molding the connecting tool and the connected object,
Since it does not require much precision, the machining process can be simplified and costs can be reduced.

Thus, the fluid flows from the hose 2 to the pipe 26,
The water is supplied into the cylinder body 1 from the screw hole 22 via the through hole 28, the circumferential groove 13, and the continuous hole 14 in this order, or is returned to the hose 2 by following the opposite route.

According to this embodiment, the second surface 24b provided for positioning in the directions G and H in FIG.
Although it has a curved surface, it may be a flat surface that makes surface contact with the second surface 32b.

As described above, according to the present invention, one hose is attached to a connecting tool having a seat surface, with one hose directed diagonally with respect to the seat surface, and the connecting tool is connected to the connecting tool with the seat surface facing the object to be connected. In a hose connection structure in which one hose is connected to a connected object by seating it on the seat surface of the connected object and fixing it to the connected object, the connected object has a first surface substantially perpendicular to the seat surface thereof. and a second surface substantially perpendicular to the seating surface and not parallel to the first surface.
, and the connecting tool has first and second surfaces that are individually bonded to the first and second surfaces of the object to be connected.
Since the connecting surface is formed to position the hose relative to the connected object, the seating surface, first surface, and second surface on the connecting tool side and the connected object side are all connected to the connecting tool and the connected object. Since the molding process can be performed without requiring a separate process during molding, the process can be simplified and costs can be reduced. In addition, the positioning of the connecting tool with respect to the object to be connected is determined by
Because three-dimensional positioning is possible by the surface of
The work of fixing the connecting tool to the object to be connected using bolts or the like is also facilitated, which has the effect of making it easier to connect the hose to the object to be connected. In particular, since the present invention has the above configuration, when the end of one hose is connected obliquely to the seat surface of the connection body, the position of the hose around the perpendicular line to the seat surface can be easily determined. It has the special effect of being able to

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a conventional example, FIG. 2 is a plan view of a connector showing an embodiment of the present invention, FIG. 3 is a sectional view taken along the - line in FIG. A plan view of the connecting body, FIG. 5 is a view taken in the direction of arrow A in FIG.
FIG. 7 is a sectional view taken along the - line in FIG. 6. 1... Connected object (cylinder body), 2... Hose, 12... Bolt, 13... Circumferential groove, 14...
Continuous hole, 20... Seat, 21... Seat surface, 22... Screw hole, 23... Convex portion, 24a... First surface, 24
b...Second surface, 25...Connector, 28...Through hole, 30...Seat surface, 31...Protrusion, 32a...First joint surface, 32b...Second joint surface.

Claims (1)

[Claims] 1 Attach one hose to a connecting tool that has a seat, facing diagonally to the seat, and fix this connecting tool to the connected object by seating the seat on the seat of the connected object. By doing so, in the hose connection structure that connects one hose to a connected object, the connected object has a first surface substantially perpendicular to the seating surface thereof, and a first surface substantially perpendicular to the seating surface and the first surface. a second surface that is not parallel to the first surface;
A hose positioning structure characterized in that a second connection surface is formed and the hose is positioned with respect to the object to be connected.