JPH0732964Y2 - Connection structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a connecting structure, and particularly to a connecting structure for connecting a fixing member having two orthogonal surfaces to a mating member having two orthogonal surfaces. It is about.

[Prior art and problems to be solved]

Generally, when it is necessary to connect a fixing member having two orthogonal surfaces to a mating member having two orthogonal surfaces formed by being connected to each other and to enhance the sealing property between the abutting surfaces, Each is connected using bolts, bolts and nuts, etc.

That is, for example, with respect to the counterpart member 21 including the engine block 22 and the oil pan 23 as shown in FIG.
When fixing the sealing device as the fixing member 30, the side surface of the retainer 31 of the sealing device is the side surface 22a of the engine block 22.
On the other hand, the lower surface of the retainer 31 is in contact with the upper surface 23a of the oil pan 23, respectively.

In this case, in order to connect the side surface of the retainer 31 to the engine block 22, each through hole provided in the peripheral edge portion 32 of the retainer 31.
A bolt is provided by penetrating the inside of 33, and the bolt is screwed and fixed in a bolt hole 25 provided in the engine block 22 to fix the engine block 22 and the retainer 31.

On the other hand, the stud bolt 34 protruding from the lower surface of the retainer 31 is screwed with the nut while the through hole 27 provided in the upper surface 23a of the oil pan 23 is inserted, thereby fixing the oil pan 23. Has become.

However, in the case of connecting and fixing the retainer 31 of the sealing device, which is the fixing member 30, to the mating member 21 including the engine block 22 and the oil pan 23 as described above, first, the crankshaft 28 is centered on the retainer 31. When the retainer 31 is fitted to the engine block 22 and the oil pan 23 in this state by fitting the oil seal 35 provided on the engine portion, the connection between the engine block 22 and the oil pan 23 is first released. It was necessary and the connecting and fixing work was very complicated.

In addition, the oil seal 35 provided on the retainer 31 is
In the replacement work when worn by sliding with the outer peripheral surface of 28, the work opposite to the fixing work, that is, first, release the bolt 29 connecting the engine block 22 and the oil pan 23. Then remove the oil pan 23 from the engine block 22 and the stud bolt 34 of the retainer 31, and then remove the bolts screwed into the bolt holes 25 of the engine block 22 and the engine block 22 and the retainer.
It is necessary to break the connection with 31.

Therefore, there is a problem that the connecting and fixing work and the replacing work, that is, the attaching and detaching work become very complicated.

An object of the present invention is to provide a connecting structure that can perform connecting and fixing and replacement work, that is, attachment and detachment work very easily.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention forms two surfaces intersecting each other between an engine block and an oil pan installed in the engine block, and applies two surfaces of the retainer to the two surfaces, respectively. And a connecting member which is in contact with each other and which connects the contact surfaces to each other, and which penetrates the contact surface of the retainer with the engine block and is screwed into the contact surface of the engine block, and the retainer of the retainer. A means including a tightening member located in a notch provided on either the contact surface with the oil pan or the contact surface of the oil pan and connecting the contact surfaces to each other is employed. is there. Also, the connecting member is made of a bolt,
The bolt hole into which the threaded portion of the bolt is screwed is screwed to the contact surface of the engine block. Further, the tightening member is composed of a bolt and a nut, and a part of the bolt is located in a notch provided on either the other contact surface of the retainer or the contact surface of the oil pan. It is a thing.

[Action]

This invention adopts the above-mentioned means, so that the two intersecting surfaces of the retainer are brought into contact with the two intersecting surfaces formed between the engine block and the oil pan. The contact surface of the retainer and the oil pan of the retainer are connected to each other by screwing the connecting member through the contact surface of The tightening member located in the notch provided on either one of the abutting surfaces connects the abutting surfaces to each other. Therefore, it is not necessary to remove the oil pan when removing the retainer, and it is not necessary to remove the retainer when removing the oil pan from the engine block, which facilitates attachment and detachment of the retainer and attachment and detachment of the oil pan.

〔Example〕

 An embodiment of the present invention shown in the drawings will be described below.

FIGS. 1 and 2 show a connecting structure according to the present invention, which is a mating member 21 including an engine block 22 and an oil pan 23.
FIG. 1 shows a case in which the fixing device 1 is used for fixing the sealing device. FIG. 1 is a schematic view showing the whole, and FIG. 2 is a schematic view showing a main part.

That is, a horizontal upper surface 2 orthogonal to the side surface 22a of the engine block 22 is provided at a lower portion of the engine block 22 having a vertical side surface 22a and a fixing bolt hole 25 screwed into the side surface 22a.
An oil pan 23 having 3a and a notch 24 formed in the upper surface 23a is connected via a bolt 29.

Therefore, the engine block 22 and the oil pan 23 form two surfaces 22a, 23a which are orthogonal to each other.

On the other hand, the side surface 22a of the engine block 22 and the oil pan 2
An oil seal 5 is provided in the center of the retainer 2 having two surfaces that come into contact with the upper surface 23a of the crankshaft 3, and the oil seal 5 seals the outer peripheral surface of the crankshaft 28 protruding from the inside of the engine block 22. It is supposed to do.

A through hole 4 is formed in the peripheral edge portion 3 of the retainer 2 at a position corresponding to the bolt hole 25 of the engine block 22, and a position corresponding to the cutout portion 24 of the oil pan 23 on the lower surface. A stud bolt 6 is integrally projectingly provided on this.

When connecting the sealing device which is the fixing member 1 to the mating member 21 including the engine block 22 and the oil pan 23 configured as described above, first, the oil seal 5 provided in the central portion of the retainer 2 is attached. The crankshaft 28 protruding from the inside of the engine block 22 is pressed to the engine block 22 side while being matched with the crankshaft 28.

That is, the oil seal 5 is fitted on the outer periphery of the crankshaft 28 by this pressing operation, and the stud bolt 6 on the lower surface of the retainer 2 is located in the cutout portion 24 of the oil pan 23. Therefore, the side surface of the retainer 2 is located on the engine block 22. Side 22a
Also, the lower surface of the retainer 2 is the upper surface 23a of the oil pan 23.
Will be in contact with.

In this state, the bolt 7 is inserted into each through hole 4 of the peripheral edge portion 3 of the retainer 2 and screwed into the bolt hole 25 of the engine block 22, and the nut of the stud bolt 6 is screwed into the oil pan 23. If it is fixed to the retainer 2, the side surface and the lower surface of the retainer 2 can be connected and fixed to the two surfaces 22a and 23a of the engine block 22 and the oil pan 23 which are the mating members 21.

When the retainer 2 of the sealing device, which is the fixing member 1, is removed from the mating member 21 including the engine block 22 and the oil pan 23, the above operation is reversed to connect the engine block 22 and the oil pan 23. The sealing device can be removed without releasing.

If the nut 7 is screwed into the stud bolt 6 in advance, it can be more easily fixed to the oil pan 23.

FIG. 3 shows another embodiment of the connecting structure according to the present invention. Even in the embodiment shown in FIG. 3, the engine block 22 and the oil pan 23 are the same as those in the above embodiment. The case where the retainer of the sealing device, which is the fixing member 11, is fixed to the mating member 21 is shown, and the mating member 21 is the same and therefore omitted.

In the case of this embodiment, at the lower part of the retainer 12 of the sealing device which is the fixing member 11, a mounting portion 17 is bored which is opened on the side surface and into which the head 16a of the bolt 16 described later can be inserted. Together with this, a semi-circular part that opens at the bottom of this mounting part 17
18 is provided, and the mounting portion 17 and the semicircular portion 18 form a cutout portion 19.

On the other hand, a through hole 27 is formed in the upper surface 23a of the oil pan 23, unlike the cutout portion 24 of the above embodiment, as in the conventional case.

A bolt 16 having a polygonal head portion (four corners in the drawing) 16a is provided in the through hole 27.

A nut may be screwed into the threaded portion of the bolt 16 in advance.

In the connecting structure configured as described above, when connecting the retainer 12 of the sealing device, which is the fixing member 11, to the mating member 21 including the engine block 22 and the oil pan 23,
First, the oil seal 15 provided in the center of the retainer 12 is projected from the inside of the engine block 22 to the crankshaft 28.
It may be pressed to the engine block 22 side in a state of being matched with.

That is, the oil seal 15 is fitted on the outer periphery of the crankshaft 28 by this pressing operation, and when it is further pressed, the retainer 12
The side surface of the abuts on the vertical surface 22a of the engine block 22.

On the other hand, the head portion 16a of the bolt 16 protruding from the through hole 27 provided in the upper surface 23a of the oil pan 23 is inserted into the inside of the notch portion 19 provided so as to open on the lower side surface of the retainer 12. It will be.

Therefore, in this state, a bolt is inserted into each through hole 14 of the peripheral edge portion 13 of the retainer 12 to be screwed into the bolt hole 25 of the engine block 22, and a nut is screwed into the bolt 16 so that the oil pan 23 If it is fixed to the retainer 12, the side surface and the lower surface of the retainer 12 can be connected and fixed to the two surfaces 22a and 23a of the engine block 22 and the oil pan 23 which are the mating members 21.

Then, the retainer of the sealing device which is the fixing member 11 from the counterpart member 21 including the engine block 22 and the oil pan 23.
If 12 is to be removed, the above operation can be reversed to remove the sealing device without disconnecting the engine block 22 from the oil pan 23.

As described above, according to the connecting structure of the present invention, it is possible to very easily connect and fix the fixing member having the two surfaces that are in contact with the two orthogonal surfaces of the mating member, and the respective surfaces are connected. Therefore, it is possible to enhance the sealability between the mating surface and the point is to fix to one surface of the mating member from the fixing member side with a connecting member that cooperates with a part of the mating member, The other surface of the mating member may be fixed by a tightening member that is tightened while sandwiching the mating member and the fixing member, and is not limited to those shown in the embodiments. The configuration can be adopted.

[Effect of device]

In this invention, two surfaces intersecting each other are formed between an engine block and an oil pan attached to the engine block, and the two surfaces intersecting with each other of the retainer are respectively brought into contact with each other, and the contact surfaces are contacted with each other. A connecting structure for connecting to each other, a connecting member penetrating a contact surface of the retainer with the engine block and screwed into the contact surface of the engine block, and a contact surface of the retainer with the oil pan. Alternatively, the structure is provided in a notch provided on either one of the contact surfaces of the oil pan, and a tightening member that connects the two contact surfaces to each other is provided, so that between the engine block and the oil pan. The two surfaces of the retainer that intersect each other are respectively brought into contact with the two surfaces of the retainer that intersect with each other, and the contact surface of the engine block penetrates through the contact surface of the retainer with the engine block. By screwing the connecting member, both contact surfaces are connected to each other, and the tightening member is located in the notch provided on either the contact surface of the retainer with the oil pan or the contact surface of the oil pan. Both contact surfaces will be connected.

Therefore, when removing the retainer, it is not necessary to remove the oil pan from the engine block, and it suffices to release the connection state of the tightening member that connects the retainer and the oil pan. Further, when removing the oil pan, it is not necessary to remove the retainer from the engine block, and it suffices to release the connection state of the tightening member that connects the retainer and the oil pan. Therefore, the retainer and the oil pan can be easily attached and detached, which facilitates maintenance.

[Brief description of drawings]

1 and 2 show a connecting structure according to the present invention,
FIG. 1 is an overall schematic view, FIG. 2 is a schematic view of essential parts, FIG. 3 is a schematic view of essential parts of another embodiment, and FIG. 4 is a schematic view showing a conventional connecting structure. 1, 11, 30 …… Fixing member 2, 12, 31 …… Retainer 3, 13, 32 …… Peripheral part 4, 14, 27, 33 …… Through hole 5, 15, 35 …… Oil seal 6, 34… … Stud bolt 7 …… Nut 16,29 …… Bolt 16a …… Head 17 …… Mounting part 18 …… Semicircular part 19,24 …… Notch 21 …… Mating member 22 …… Engine block 22a …… Side 23a …… Top surface 25 …… Bolt hole 26 …… Knock pin 28 …… Crankshaft

Claims (3)

[Scope of utility model registration request] 1. An engine block (22) and an oil pan (23) mounted on the engine block (22) are formed with two surfaces intersecting each other, and the retainer (2) (1) is formed on the two surfaces.
2) A connecting structure in which two surfaces intersecting with each other are brought into contact with each other and the contact surfaces are connected to each other, wherein the engine block (2) of the retainer (2) (12) is provided.
2) The engine block (22) that penetrates the contact surface with
And a retainer (2), which is screwed onto the contact surface of the retainer,
Notch (2) provided on either the contact surface of (12) with the oil pan (23) or the contact surface of the oil pan (23).
4) A connecting structure characterized in that it has a tightening member which is located in (19) and connects both abutting surfaces to each other. 2. The connecting member according to claim 1, wherein the connecting member is formed of a bolt, and a bolt hole (25) into which a threaded portion of the bolt is screwed is screwed on an abutting surface of the engine block (22). Construction. 3. The tightening member comprises a bolt and a nut, and a part of the bolt (6) (16) is the retainer (2).
The connection structure according to claim 1, wherein the connection structure is located in a notch (24) (19) provided on either of the other contact surface of (12) or the contact surface of the oil pan (23).