JPS6112300Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a fixing fitting for a torsion bar.

Many inspection covers for inspecting the trunk lid of a passenger car or the engine of a cab-over type truck use a torsion bar to reduce opening force and act as a stopper when opened. In this case, a special tool is generally used to twist and set the torsion bar. The first example is
2 and 3. In either case,
The structure is such that the torsion bar 01 is twisted using a special tool and set on the bracket 02.

However, inspection covers are often removed during heavy engine maintenance, and removal is difficult and dangerous without special tools.

The purpose of the present invention is to focus on the above points and provide a torsion bar fixing fitting that allows the torsion bar to be attached and detached only by using a wrench. A lever part that projects at a predetermined angle difference from the lever part and a parallel part to the bar body that extends back from the end of the lever part are provided, one of the parallel parts is attached to the member to be opened and closed, and the other parallel part is attached to the bar body. a torsion bar which is fixed to a support wall surface by being rotated so as to give a twist to the torsion bar, a concave groove into which the other parallel part fits is provided in the middle part, and a curved part surrounding the bar body is provided on one end side; Further, a bolt hole for fixing is provided between the groove and the curved portion, and the fixing metal fitting is formed of a band-shaped plate having the other end formed as a push portion.

Embodiments of the present invention will be described below with reference to the drawings.

Fig. 4 is a perspective view showing the inspection cover according to one embodiment of the present invention in the open and closed state, Fig. 5 a is an explanatory view showing the cover in the open and closed state, and Fig. 5 b shows the state before and after the fixing fittings are set. FIG. 6 is an explanatory diagram showing the setting method using the fixing metal fittings.

In the figure, 1 is the inspection cover, 2
is a torsion bar, and both ends of the bar body 2a form lever portions 2b that protrude in the radial direction, and the ends of the lever portions are folded back to form parallel portions 2c with the bar body 2a. A bearing 7 is provided in the middle portion of the bar body 2a. One parallel part 2c is engaged with the cover 1, and the other parallel part 2c is fixed to the front surface 8a of the cab frame 8, which is a supporting wall surface, by means of a fixing metal fitting (stopper) 3 and a bolt 4.

As shown in FIG.
A concave groove 3a that holds the parallel part 2c of the torsion bar from the outside is provided in the middle part, and the lower end part is attached to the shaft body 2.
A is formed in a curved portion 3c that surrounds the groove 3a from the inside.
It is formed of a band-shaped plate having a bolt hole 3b for fixing between the curved part 3c and a hand-pushing part 3d at the upper end.

In addition, 6 is a packing and 10 is an engine.

The operation of attaching and detaching the torsion bar using the fixing fittings will be described with reference to FIG. 6.

Since the lever portions 2b on both ends of the torsion bar extend in the radial direction at an appropriate angle difference,
When the cover is closed, that is, when the lever on the cover side is in the horizontal position, the lever on the other end is in the position shown by the solid line in the figure.

In this state A, the parallel part 2c of the torsion bar is held in the concave groove 3a of the fixture, the curved part 3c is brought into contact with the floor 9 as a fulcrum, and the push part 3d is pressed in the direction of the arrow to move the lever part 2b to the bar. When the main body 2a is rotated so as to give a twist and the fixture 3 is brought into contact with the support surface 8a, the fixture 3 is in the set state B shown by the two-dot chain line, and the bolt 4 is inserted into the bolt hole 3b. and tighten it to the support surface 8a to complete.

In this state, the same operation as the conventional inspection cover opening/closing device using a torsion bar can be performed.

Further, in case of detachment, it is sufficient to simply remove the bolt 4 with a spanner.

In addition, in Fig. 5a, the solid line indicates the cover closed state, 1
The dashed dotted line shows the open state of the cover, in No. 5b, the solid line shows the state set by the fixing fittings, and the dashed dotted line shows the state before setting.

As described above, according to the present invention, the torsion bar can be attached and detached using the fixing fittings and bolts, without requiring special tools unlike conventional ones, and when detaching, the bolts can be removed with a wrench. It is effective because it can be done easily and safely.

[Brief explanation of the drawing]

1, 2, and 3 are explanatory diagrams showing a conventional torsion bar setting structure, FIG. 4 is a perspective view showing an inspection cover opening/closing device according to an embodiment of the present invention, and FIG. 5 5A is an explanatory view showing the open/closed state of the cover, FIG. 5B is an explanatory view showing the state before and after setting the fixing metal fittings, and FIG. 6 is an explanatory view showing the setting method using the fixing metal fittings. 1...Inspection cover, 2...Torsion bar, 2a...Bar body, 2b...Lever part, 2c...Parallel part, 3...Fixing metal fittings, 3a...
Concave groove, 3b... Bolt hole, 3c... Curved part, 3d
... Hand push part, 4 ... Bolt, 5 ... Hinge, 6
...Packskin, 7...Bearing, 8...Cabinet frame, 8a...Front side of the cabriage frame, 9
...Floor, 10...Engine.

Claims (1)

[Scope of utility model registration request] A lever part protrudes radially from both ends of the bar body at a predetermined angle difference, and a parallel part to the bar body extends back from the end of the lever part, and one of the parallel parts is used as a member to be opened and closed. In a torsion bar that is fixed to a support wall surface by rotating the other parallel part of the mounting part so as to give a twist to the bar body,
providing a concave groove in the intermediate portion into which the other parallel portion fits, and providing a curved portion surrounding the bar body on one end side;
and a torsion bar fixing fitting comprising a belt-shaped plate having a bolt hole for fixing between the groove and the curved part and having the other end formed as a push part.