JPH0144770Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a cylinder head cover of an internal combustion engine, etc., which is mounted so as to straddle a box-shaped cover whose central part is tightened with a tightening bolt. The present invention relates to a reinforcing portal member for a cover that holds down and fixes the cover by tightening bolts.

[Conventional technology]

In the case of a cover that has a relatively large area and is tightened with bolts at the center of the top plate, for example, a cylinder head cover 1 made of vibration-damping steel plates with a sanderch structure in which resin is sandwiched between steel plates as shown in the perspective view in Fig. 1. In this case, since the bolts 2 are tightened to the cylinder head at multiple locations along the center line of the top plate 1A, there is a risk that the center portion may become depressed.

Since damping steel plates have low rigidity, the reinforcing gate-shaped members 3 are installed so as to straddle the cylinder head cover 1. Bolts 2 are inserted into the center of the top plate portion 3A of these reinforcing gate-shaped members 3. Since the cylinder head cover 1 is inserted through the bolt and the cylinder head cover 1 is fixed, the load due to the tightening of the bolt 2 is borne by the reinforcing portal member.

By the way, the reinforcing portal member 3 conventionally has a second
A horizontal top plate portion 3A shown in solid lines in the figure, vertical left and right leg portions 3B, 3B, and a foot portion 3C formed by bending outward from the lower ends of these legs and further bending the tips downward. , 3C, as shown by the imaginary line in FIG.
If the bolt 2 is inserted into the bolt hole 4 provided at the center of A and tightened strongly, the center of the top plate 3A will become depressed and the lower ends of the legs 3B and 3B will expand outward. Open. Therefore, as shown by solid lines in FIG.
There was a problem in that C could shift, resulting in incomplete sealing.

[The problem that the idea attempts to solve]

The present invention solves the problems of the conventional reinforcing gate-shaped members, and even if the bolts are inserted into the bolt holes provided in the center of the top plate and tightened strongly, the center of the top plate remains To provide a reinforcing gate-shaped member for a cover, which prevents depression, prevents the lower ends of the legs from expanding outward, allows the legs to accurately abut the cover against the sealing material, and improves the sealing effect. purpose.

[Means to solve the problem]

In order to achieve the above-mentioned purpose, the reinforcing gate-shaped member for a cover of the present invention is installed over a box-shaped cover whose center part is tightened with a tightening bolt, and a top plate with a bolt hole in the center. A reinforcing gate-shaped member for a cover, comprising: a left and right leg portion bent from the top plate portion; and a foot portion bent outward from the lower end of these legs and further bent downward at the tip. The shape when no load is applied is such that the central part of the top plate is high and the left and right ends have low bends, the left and right legs are each in a shape that slopes inward toward the bottom, and the cover is closed by the foot part at the bottom of the leg. It is configured to come into contact with the sealing material.

Then, the shape before use is bent so that the center part of the top plate is high and becomes lower towards the left and right ends, while the left and right legs are bent inward as they reach the bottom end, making it easy to tighten. It is unique in that it deforms into a regular shape.

〔Example〕

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 4 shows an embodiment of the reinforcing portal member of the present invention in a longitudinal sectional front view. The reinforcing portal member 6 of the present invention is
As shown by the solid line in FIG. 4, the top plate part 6A is made of a press-formed product made of thick band steel, and the center part is high.
It is bent low toward the left and right ends, and a bolt through hole 7 is provided at the center of the top plate. Leg portions 6B, 6B are bent at both left and right ends of the top plate portion 6A, and both leg portions are inclined inward as they reach the lower end. The leg portions 6B, 6B are formed by bending outward from the lower end to the left and right, and further have foot portions 6C, 6C whose tips are bent downward.

In the reinforcing portal member 6 of the present invention, the material S has a flat cross-sectional shape as shown in FIG. .

The reinforcing portal member 6 of the present invention having the above-mentioned structure deforms from the shape shown by the solid line in FIG. 4 to the shape shown by the imaginary line in the same figure as it is used, but there is always a force that tends to return it to its original shape. 2, it does not deform as shown by the imaginary line in FIG.

[Effect of idea]

For example, when the reinforcing portal member of the present invention is used astride a cylinder head cover, the cover can be accurately brought into contact with the sealing material as shown in Fig. 3, and the cylinder head cover can be securely fixed. It has the advantage of allowing

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing how the reinforcing portal member is attached to the cylinder head cover, Fig. 2 is a longitudinal sectional front view showing the conventional reinforcing portal member, and Fig. 3 is the cylinder head cover attached to the cylinder head. FIG. 4 is a longitudinal front view showing an embodiment of the reinforcing portal member of the present invention, and FIGS. It is a diagram. 1... Cylinder head cover, 2... Bolt,
3... Conventional reinforced portal member, 3A... Top plate part, 3
B...leg, 3C...foot, 4...bolt hole,
5... Sealing material, 6... Reinforced portal member of the present invention,
6A...Top plate part, 5B...Legs, 6C...Foot part,
7...Bolt through hole.

Claims (1)

[Scope of utility model registration request] The center part is mounted over a box-shaped cover that is tightened with a tightening bolt, and has a top plate part with a bolt hole in the center, and left and right legs bent from this top plate part.
In the reinforcing gate-shaped member for the cover, which has a foot portion bent outward from the lower end of the leg portion and further bent downward at the tip, the shape when no load is applied is such that the center portion of the top plate portion is high. This reinforcing gate-shaped member for a cover has a low refraction at both left and right ends, the left and right legs have a shape that slopes inward as they reach the lower ends, and the cover is brought into contact with a sealing material by the feet at the lower ends of the legs.