JPS598131Y2 - Lid opening/closing device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a lid opening/closing device, and its purpose is to simplify assembly and improve the operability of opening and closing the lid. explain.

Reference numeral 1 denotes a water heater installed in the kitchen, and the water heater 1 has a combustion chamber 5 having a heat exchanger 2, a gas burner 3, a pilot burner 4, etc. inside, and heats the water by operating a control knob 6 on the front of the main body. It consists of a chamber 9 with an open top surface in which a mechanism section 8 for controlling the amount of water flowing through the water supply pipe 7 wound around the exchanger 2 and the amount of gas supplied to the gas burner 3 and pilot burner 4 is arranged.

The water supply pipe 7, gas supply pipe 10, and hot water supply pipe 11 are the main body 1.
The water supply pipe 7 is connected to the rear of the upper part of the main body.
A water supply valve (not shown) and a gas supply valve 12 are interposed in the gas supply pipe 10 and the gas supply pipe 10, respectively.

13 is a balance top that communicates the combustion chamber 5 with the outside air.

Reference numeral 14 denotes a top plate placed on the upper opening of the main body 1. The back part of the top plate 14 is set upright to form a draining section 15, and an opening 16 is provided in the draining section 15. is equipped with a lid 17 that can be opened and closed.

18 is an opening/closing knob attached to the tip side of the lid body 17;
By opening the lid, the water supply tap and the knob 19 of the gas tap 12 can be operated.

The lid 17 has a wire rod 21 fixed to the side edge 20 of the base end on the back side, and both ends of the wire 21 are made to protrude from the lid 17 and are continuously bent parallel to the lid 17. , a pivot portion 27 is formed on the distal end side of the lid body 17, and a holding portion 28 is formed on the opposite side, parallel to the portion that is secured to the lid body 17 (
Figure 7) Yes.

22 is fixed to the back side of the top plate 14 on both sides of the opening 16, and
It is a bearing plate arranged parallel to the six sides, and is a retaining plate 23 which will be described later.
Both are formed of a common elastic plate material 30.

Reference numeral 24 denotes a bearing portion that receives the pivot portion 27 formed in the bearing plate 22.

The holding plate 23 has a protruding intermediate portion 25, and has a concave portion at the base end with which the holding portion comes into contact when the lid is closed, and a concave portion at the distal end with which the holding portion comes into contact when the lid is opened. It is folded upwards and is installed in the top plate at a downward angle.

The pivot portion 27 of the wire 21 is received by the bearing portion 24 of the bearing plate 22, and the holding portion 28 is brought into contact with the holding plate 26.

Reference numeral 29 denotes a leaf spring provided on the side edge of the tip end of the lid 17, and this leaf spring 29 comes into elastic contact with the open end of the lid 17 on the top plate 14 side when the lid 17 is closed.

The present invention has the above structure, and the method of attaching the lid 17 is to fix the wire 21, which has the pivot portion 27 and the holding portion 28 bent at both ends, to the side edge of the proximal end of the lid 17, and then After the lid 17 is attached to the opening 16 provided in the top plate 14, plate members 30 are placed on both sides of the opening 16 of the top plate 14 so that the bearing portion 24 of the bearing plate 22 is located on the pivot portion 27 from the back side of the top plate. It should just stick.

Then, the holding portion 28 of the wire rod 21 also comes into contact with the holding plate 23 at the same time, and the attachment of the lid body 17 is completed.

For example, in the case of the embodiment, the safety and usability of the water heater can be improved by opening the lid 17 and opening/closing the gas main valve 12 and the water supply main valve before and after using the water heater. .

Regarding the opening/closing operation of the lid 17, when it is closed, the spring 29 comes into elastic contact with the edge of the top plate 14 to maintain the closed state of the lid 17, as shown in FIG. The holding portion 28 is located in the proximal recess of the holding plate 23.

Then, when the knob 18 is lifted upward, the elastic contact between the spring 29 and the edge of the top plate 14 is released, and the lid body 17 rotates about the pivot portion 27 of the wire rod 21 received by the bearing plate 22.

At this time, the holding portion 28 of the wire 21 also rotates about the pivot portion 27 and moves to the intermediate portion 25 while pushing the holding plate 23.

(Fig. 6) Then, when the lid body 17 is further rotated, the holding part 2
8 is rapidly moved to the distal end recess by the restoring force of the retaining plate 23, and the lid body 17 is stopped at the position where the holding portion 28 enters the distal recess.

At this time, a force acts on the lid body 17 in the closing direction due to its own weight, but at this time, the holding plate 23 is slightly displaced from its original state and a restoring force is applied to the holding part 28, so this restoring force closes the lid body. 17 will be held open.

(Fig. 6-8) Also, when closing the lid body 17, the holding part 28
is rapidly moved to the proximal recess at the position where it passes through the intermediate portion 25 of the holding plate 23, and in this way, the lid 17 is restricted to two states, open or closed, and the rotation range of the lid 17 is limited. The latter half is automatically operated by the restoring force of the holding plate 23, and the opening and closing operations of the lid body 17 are extremely easy, and the structure is simple and the ease of assembly is very good.

Note that the shape of the holding plate 23 is not limited to this embodiment, and may have the shape shown in FIG. 8 without forming a protrusion in the intermediate portion.
In this case, the restoring force of the holding plate has the effect of holding the lid 17 in the open state, but the lid 17 is always urged in the closing direction at an intermediate position.

[Brief explanation of drawings]

Fig. 1 is an overall structural diagram showing one embodiment of the present invention, Fig. 2 is a partial perspective view of the top plate, Fig. 3 is a plan view of the main part, Fig. 4 is a perspective view of the main part, and Fig. 5 is a perspective view of the main part. The figure is a cross-sectional view taken along line A-A in Figure 2.
A shows the closed state, and the mouth shows the open state. FIG. 6 is an explanatory view showing the operation of the holding plate, FIG. 7 is a perspective view of the wire rod, and FIG. 8 is a sectional view of a main part showing another embodiment of the holding plate. 17... Lid body, 21... Wire rod, 22.
... Bearing plate, 23 ... Holding plate, 27 ...
...Principal branch, 28...Holding part.

Claims (1)

[Scope of utility model registration request] In a device in which an opening provided in the main body is opened and closed by a lid body with an opening/closing knob attached to the tip side, a wire rod with both ends protruding from the lid body is fixed to the side edge of the base end of the lid body, and the protruding portion of the wire rod is fixed to the side edge of the base end of the lid body. Continuously bend parallel to the lid body, form a pivot part on the tip side of the lid body and a holding part on the opposite side to the fixed part parallel to the part fixed to the lid body, On the back surface of the main body on both sides of the opening, a bearing plate for receiving the pivot portion is arranged parallel to the opening surface, and at the base end, a concave portion is contacted by the holding portion when the lid is closed, and at the tip end is contacted when the lid is opened. 1. A lid opening/closing device characterized in that an elastic holding plate having a concave portion and an upwardly bent tip is installed in a downwardly inclined manner within a main body.