JPS6127556Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a boiler in which a hook portion is provided on a main body and a rotatable lid body to be engaged with the main body.

In conventional boilers, when assembling the hook part that hooks the lid to the main body, a fulcrum shaft incorporating the hook and spring was built into the support, and the hook and support were assembled as one, so the spring's elasticity was reduced. The disadvantages were that it took a long time to find the screw holes because of the power generated, the mounting screws were inserted at an angle, and they caused harmful damage to surrounding parts, making them difficult to assemble and lacking in quality.

The purpose of the present invention was to eliminate the above-mentioned drawbacks and to provide a simple structure, low cost, improved ease of assembly and quality, and high practical value.

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

The structure of the embodiment is as shown in the figure, and 1 is a lid body which covers the opening of the main body 9 of the boiler and rotates to open and close it by means of a hinge (not shown) via a body edge part 2 fixed to the opening of the main body 9 of the boiler. It is possible. Reference numeral 3 denotes a hook which is fitted into the lid body 1 at an edge opposite to a hinge (not shown), and has one end attached to the pushing part 10, which is partially exposed outside the lid body 1, and the other end to the edge portion opposite to the hinge (not shown). A hook-shaped locking part 11 is formed on the part 2 to form a seesaw shape, and the pushing part 1
A support piece 13 having a fulcrum shaft 4 fixed therethrough is provided between the holder 0 and the locking part 11. Reference numeral 5 denotes a support device, which urges the locking portion 11 in the locking direction by a screw coil spring 6 having a coil portion inserted into the fulcrum shaft 4 of the hook 3, and opens in the same direction as the biasing direction. A fulcrum shaft 4 is pivotally supported by a notched hole 12 in the shape of a letter, and a stopper 8 for fixing one end of a torsion coil spring 6 is provided, and the stopper 8 is fixed to the lid body 1 with a mounting screw 7. By the way, when the other end of the torsion coil spring 6 presses against the rear surface pushing part 10 side of the hook 3, the locking part 11 of the hook 3 presses against the body edge part 2 in the opposite direction to the pressing direction.
It is provided so that it is pressed in the locking direction and hooked.

The operation of this embodiment is as follows: First, the support 5, which has a notched hole 12 with a U-shaped pivot point, is attached to the lid 1 with the mounting screw 7, and then fixed to the support piece 13 of the hook 3. While inserting the coil part of the torsion coil spring 6 into the fulcrum shaft 4, insert it into the cutout hole 12.
By inserting the fulcrum shaft 4 into the and pushing it in until one end of the torsion coil spring 6 is locked and fixed to the stopper 8 of the support 5, the fulcrum shaft 4 comes into contact with the bottom of the notch hole 12, and the other end of the torsion coil spring 6 is attached to the hook 3. The fulcrum shaft 4 is pressed into the cutout hole 12 and is supported by the torsion coil spring 6 as described above. The hook 3 is reliably elastically attached to the lid body 1 by simply inserting it into the notch hole 11 while being attached, and is hooked to the main body 9 via the lid body 1 and the body edge part 2, so that it can be freely engaged and detached.

According to the present invention, the support for the lid is U-shaped in that the hook pivots on the fulcrum shaft in which the locking portion is biased in the locking direction by the torsion coil spring of the fulcrum shaft and opened in the same direction as the biasing direction. By providing a stopper that locks one end of the torsion coil spring in the notch hole in the shape, the support is first attached to the lid body, and then the fulcrum shaft with the torsion coil spring attached to the hook is inserted into the notch hole. Since the elastic force of the spring does not affect the screws, etc., the notch hole and stopper can be provided without having to search for the screw hole, inserting the mounting screw at an angle, or causing harmful damage to surrounding parts. This support has a simple structure, is inexpensive, and has a high practical value as it improves ease of assembly and quality.

[Brief explanation of the drawing]

The figure is a sectional view of a main part of a boiler showing an embodiment of the present invention. 1... Lid body, 3... Hook, 4... Fulcrum shaft, 5
... Support, 6 ... Torsion coil spring, 8 ... Stopper, 11 ... Locking part, 12 ... Notch hole.

Claims (1)

[Scope of utility model registration request] In a boiler equipped with a support for pivoting a seesaw-shaped hook on a fulcrum shaft, which is biased by a torsion coil spring, on the lid, the support 5 of the lid 1 has a hook 3 supported by a torsion coil spring on the fulcrum shaft 4. 6 urges the locking portion 11 in the locking direction, and one end of the torsion coil spring 6 is engaged with the U-shaped cutout hole 12 that pivotally supports the fulcrum shaft 4, which is opened in the same direction as the urging direction. This boiler is characterized by being provided with a stopper 8 that seems to stop.