JPH0515859Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a wiring structure of a hinge portion of a container such as a rice cooker having a heating element in the lid.

(Prior Art) Conventionally, some rice cookers and the like are equipped with a heating element not only at the bottom of the container but also at the lid so that the contents of the container are evenly heated from above and below. In this type of container, it is necessary to run wires from the container body to the lid, and generally the lead wire is disposed through the hinge portion of the lid and the container body.

For example, as shown in FIG. 6, a wiring space 3 is provided in the hinge portion 2 of the container body 1, a wiring hole 5 is bored above the wiring space 3 in a direction perpendicular to the pin 4, and a lead wire 6 is inserted. Arranged from the container body 1 to the wiring space 3,
It is designed to be led out into the lid body 7 through the wiring hole 5.

(Problems to be solved by the invention) However, in the conventional wiring structure, the sixth
As shown by the two-dot chain line in the figure, each time the lid 7 is opened or closed, the lead wire 6 may bend near the wiring hole 5 and break, so a flexible material with good flexibility is used. In addition, it is necessary to provide a wide space for wiring so that the lead wire 6 at the exit of the wiring hole 5 can be bent gently, making it difficult to make the hinge portion 2 compact.

The present invention was devised in view of the above problems, and an object of the present invention is to provide a wiring structure for a container hinge part that does not require much bending of the lead wire and allows the hinge part to be made more compact.

(Means for solving the problem) In order to solve the above problem, the present invention provides a wiring structure for a container hinge part in which a container body and a lid body, which is a lid bottom plate covered with an outer lid plate, are joined by a concave-convex fit and a pin, and one of the pin hole end faces of the hinge recess on the lid body side is provided with:
A wiring hole parallel to the axis of the pin is formed by a groove formed in the lower lid plate near the pin hole and the outer lid plate covering the groove, while a wiring space communicating with the wiring hole within the opening and closing range of the lid is formed in the hinge protrusion on the container body by the outer surface of the hinge protrusion and the hinge cover covering that outer surface, and lead wires arranged inside the lid are led out of the wiring hole by engaging with the groove before the outer lid plate is attached, and are wired to the container body side through the wiring space.

(Function) According to the above configuration, the wiring hole also moves around the pin as the lid opens. As a result, the lead wire inside the lid, which is wired from the wiring hole to the lid, remains stationary with respect to the lid and does not move or bend.

Further, in the lead wire wired from the wiring hole to the wiring space, only the portion near the wiring hole moves around the pin in the wiring space as the wiring hole moves. This amount of movement is so small that the wiring hole provided near the pin hole moves around the pin, and there is almost no bending of the lead wire.

The wiring hole on the lid side is formed by a groove in the lower lid plate and a lid outer plate that covers the groove. Therefore, with a connector etc. connected to the tip of the lead wire, insert the lead wire into the lid outer plate. Wiring can be derived from the hole before installation.

Since the lead wire is led out parallel to the pin from the wiring hole provided near the pin hole, there is no wiring perpendicular to the pin, and the space for wiring at the hinge portion can be small.

(Example) Next, an example of the present invention will be described with reference to the drawings.

FIG. 4 shows a rice cooker to which the present invention is applied. The container body 11 has a shell 12 forming an outer wall of the container.
It is composed of a shoulder body 13 fitted to the upper end of the body 12, and an outer container 14 which is housed inside the body 12 and whose upper end edge is supported by the shoulder body 13,
A heat insulating material 15 is filled between the shell 12 and the outer container 14, and an inner container 16 is housed within the outer container 14. Note that 17 is a body heater, 18 is a removably provided soup receptacle, and 19 is a bottom plate of the soup receptacle accommodating portion.

The lid body 20 includes a lid outer plate 21, a lower lid plate 22, a pressing ring 23, a heat shield plate 24, and a handle 25. The lower lid plate 22 covers the outer circumference of the inner surface of the outer lid plate 21, and the heat shield plate 24 covers the center of the inner surface of the outer cover plate 21, and these are fixed to the outer cover plate 21 together with the pressure ring 23 by screws 26. ing.

This lid body 20 is pin-jointed to the container body 11 at a hinge portion 30, which will be described later, and is provided with a hook at the other end (not shown), which is attached to the shoulder body 13 of the container body 11 by operating a push button. The container body 11 is opened and closed by engaging and disengaging the locking portion.

The press ring 23 has its inner circumference attached to the lower lid plate 22, and its outer circumference presses the upper end flange of the inner container 16 when the cover 20 is closed. 27 is an inner lid, which is detachably attached to the heat shield plate 24, and when the lid body 20 is closed, the inner container 1
It is designed to cover 6.

Although not specifically shown, a lid heater 28 is disposed inside the lid body 20, and a lead wire 29 of the lid heater 28 passes between the lid outer plate 21 and the lower lid plate 22 and connects to a hinge portion 30, which will be described later. It is arranged in the container main body 11 through the.

As shown in FIG.
0, a hinge recess 31 formed from the outer peripheral edge of the lid outer plate 21 to the lower lid plate 22, a hinge protrusion 32 protruding from the upper surface of the shoulder body 13 of the container body 11, and the hinge recess 31 and the hinge protrusion 32. After fitting, a pin 35 is inserted through a pin hole 33 provided in the hinge recess 31 and a pin hole 34 provided in the hinge protrusion 32.

One end surface 33 of the pin hole 33 of the hinge recess 31
A groove 36a is formed in the lower lid plate 22 near the pin hole 33, and the groove 36a and the groove 3
A wiring hole 36 parallel to the axis of the pin 35 is formed in the lid outer plate 21 covering the pin 6a.

The hinge convex portion 32 has a rounded upper end in the shape of a horizontal semi-cylindrical column, and a connector accommodating recess 38 in which the connector 37 is accommodated is formed in the center.

Then, on the outside of the upper end of this hinge convex portion 32 (right side in Figure 1), a portion of a certain thickness is removed from the outer surface in a tile shape, and this removed portion is removed from the outside (right side in Figure 1) when the hinge is removed. By covering with the cover 39, a tiled wiring space 40 is formed. As shown in FIG. 5, this hinge cover 39 is secured to the shoulder with a screw 43 (see FIG. 4) by locking a claw portion 41 provided at its tip into a groove portion 42 provided at the upper end of the hinge convex portion 32. It is adapted to be fixed to the body 13.

The wiring space 40 of the hinge convex portion 32 has a first
As shown in FIG. 2, it communicates with the wiring hole 36 of the hinge recess 31 within the opening/closing range of the lid 20.

As shown in FIG. 4, the lead wire 29 disposed inside the lid body 20 is led out from the wiring hole 36 to a wiring space 40 (see FIG. 1).
0 through the connector 37 of the connector housing recess 38
It is connected to the.

Hinge portion 30 of the rice cooker having the above configuration
The assembly and wiring procedure will be explained below.

First, connect the lead wire 29, which has the lid heater 28 connected to one end and the connector 37 connected to the other end, to the lid lower plate 29.
After disposing the lead wire 29 in the wiring hole 36 (this wiring hole 36 is formed between the groove 36a of the lid lower plate 22 and the lid outer plate 21 as described above). , before installing the lid outer plate 21, the lead wire 2
9 can be locked into the wiring hole 36 from the side. ), the lid outer plate 21, the lid lower plate 22, the heat shield plate 24, and the press ring 23 are fixed together with screws 26.

As a result, as shown in FIG. 4, the lead wire 2
9 is led out from the wiring hole 36 to the hinge recess 31 with the connector 37 still connected. Therefore, unlike the conventional method, there is no need to pass the lead wires through the wiring holes and then attach the connector, which simplifies the wiring.

Next, the lid 20 is placed over the container body 11, the hinge recess 31 and the hinge protrusion 32 are fitted, and the pin 35 is inserted.
are inserted into the pin holes 33, 34, 34 and joined with pins. Here, as shown in FIG.
along the tile-like removed portion of the hinge convex portion 32, and insert the connector 37 into the connector accommodation recess 38.
and connect it to a connector (not shown) on the container body 11 side.

Then, the claw portion 41 of the hinge cover 39 is engaged with the groove portion 42 of the hinge convex portion 32, and the hinge cover 39 is fixed to the shoulder body 13 with screws 43. As a result, the lead wire 29 is inserted into the wiring space 40 from the wiring hole 36 as shown in FIG.
This means that the wiring is routed through the inside of the connector accommodating recess 38. Therefore, also in this case, the wiring space 40
The lead wire 29 can be placed with the connector 37 connected thereto.

Next, the movement of the lead wire 29 as the lid body 20 is opened and closed will be explained.

When the lid body 20 is closed, the wiring hole 36 is located above the tile-shaped wiring space 40, as shown in FIG. As the lid 20 is opened, the wiring hole 36 moves approximately 90 degrees clockwise in FIG. 1 around the pin 35 while remaining in communication with the wiring space 40, resulting in the state shown in FIG. 2.

At this time, the lead wire 29 wired from the wiring hole 36 into the lid body 20 is in a stationary state with respect to the lid body 20, and does not bend while maintaining its original state. Further, the lead wire 29 in the wiring space 40
As the wiring hole 36 moves, a portion near the wiring hole 36 moves along the tiled wiring space 40 and the pin 35
move around. At this time, as shown in FIG. 3, the lead wire 29 is bent on the side of the connector housing recess 38, but the bending is extremely small compared to the conventional one shown in FIG.

(Effects of the invention) As is clear from the above explanation, according to the invention, the lead wire led out from the wiring hole provided on the lid side in parallel with the pin runs inside the wiring space provided on the container body side. Since the lead wire moves around the pin as it opens and closes, there is very little bending of the lead wire, so bending strength is not required so much, and durability is good. Further, since the wiring hole is provided near the pin hole and parallel to the pin, the wiring space in the hinge portion can be reduced, and the hinge portion can be made more compact. Furthermore, since the lead wire can be led out from the wiring hole with the connector etc. connected to the tip thereof, it has the effect of improving workability.

[Brief explanation of the drawing]

Figures 1 and 2 are enlarged cross-sectional views of the hinge portion of the rice cooker to which the present invention is applied, with the lid closed and the lid open, respectively, Figure 3 is a front view of the hinge portion, and Figure 4 is a side view of the rice cooker. FIG. 5 is a partially broken side view, FIG. 5 is an exploded perspective view of the hinge portion, and FIG. 6 is a partial sectional view of a conventional container hinge portion. DESCRIPTION OF SYMBOLS 11... Container body, 20... Lid body, 29... Lead wire, 30... Hinge part, 31... Hinge recessed part, 32... Hinge convex part, 33... Pin hole, 33
a... Pin hole end surface, 35... Pin, 36... Wiring hole, 36a... Concave groove, 39... Hinge cover, 4
0...Wiring space.

Claims (1)

[Scope of Claim for Utility Model Registration] In the wiring structure of the container hinge part in which the container body and the lid body, which is made by covering the lower lid plate with the lid outer plate, are pin-connected by convex-convex fitting, one of the hinge recesses on the lid body side. The end face of the pin hole is
The concave groove formed in the lower lid plate near the pin hole and the lid outer plate covering the concave groove form a wiring hole parallel to the axis of the pin, while the hinge protrusion on the container body side The outer surface of the convex portion and the hinge cover covering the outer surface form a wiring space that communicates with the wiring hole within the opening/closing range of the lid, so that the lead wires disposed inside the lid can be routed outside the lid. A wiring structure for a container hinge portion, characterized in that the wiring is led out from the wiring hole by engaging with the groove before mounting the plate, and is routed to the container main body side through the wiring space.