JP2004008248A - Lid of electric pot - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate the defect that the fingertip of a user or the like touches the tip part of a positioning projection in the case of positioning a lower plate by inserting the positioning projection to a positioning hole provided on the lower plate for the lid of an electric pot in which the lower plate is detachably attached to the lower surface of a lid body. <P>SOLUTION: The lower plate 12 attached to the lower surface of the lid body 1 is provided with a plurality of recessed parts 28 recessed from the lower surface side to the upper surface side and one recessed part 28 is provided with insertion holes 29 for machine screws 15 and the positioning hole 31. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a lid for an electric pot, and more particularly to a positioning structure for a lower plate.
[0002]
[Prior art]
As shown in FIG. 8, a lid of a conventionally used electric pot has a lower plate 42 made of a metal plate fixed to a lower surface of a lid main body 41 with a plurality of screws 43. A packing 44 is mounted on the outer peripheral edge of the lower plate 42, and a steam hole 45 is provided in the center of the lower plate 42. The lower plate 42 is detached from the lid body 41 by removing the screw 43 when performing maintenance such as replacement of the packing 44. When reattaching the lower plate 42, it is desirable to attach the lower plate 42 in the same orientation as before the detachment in order to maintain the same function of the lid. For this reason, a positioning hole 46 is provided in a part of the lower plate 42, a positioning protrusion 47 provided on the lid main body 41 is inserted through the positioning hole 46, and a tip end portion of the positioning protrusion 47 projects from the lower surface of the lower plate 42. In the drawing, reference numeral 48 denotes a lid hinge.
[0003]
[Problems to be solved by the invention]
However, if the tip of the positioning projection 47 protrudes from the lower surface of the lower plate 42 as described above, the fingertip touches the tip of the projection 47 during assembly work in a factory or handling such as care by a user. There was a sense of incongruity, and there was also a problem in terms of safety.
[0004]
Therefore, an object of the present invention is to provide an electric pot lid having a structure in which the positioning projection is hard to touch a fingertip of a person.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, the present invention comprises a lid body and a lower plate attached to a bottom surface thereof with screws, and a positioning projection provided on the lid body is inserted into a positioning hole provided on the lower plate. In the lid of the electric pot, the tip of which protrudes from the lower surface of the lower plate, the lower plate has a concave portion recessed from the lower surface side to the upper surface side, and the positioning hole is provided in the concave portion. .
[0006]
With the above configuration, the amount of protrusion of the tip of the positioning projection with respect to the lower surface of the lower plate is reduced by the depth of the concave portion, so that it is difficult to touch the fingertip of a person.
[0007]
Further, a configuration may be employed in which the depth of the recess is equal to or greater than the protrusion length of the tip of the positioning projection. With such a configuration, the amount of protrusion of the positioning projection with respect to the lower surface of the lower plate becomes zero or minus, so that it becomes more difficult to touch the fingertip.
[0008]
In addition, a configuration in which the screw insertion hole is provided in the concave portion can be adopted. According to this configuration, since the position of the screw head is also lowered, it is difficult for the fingertip to touch not only the tip of the positioning protrusion but also the screw head.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the electric pot of the embodiment shown in FIG. 1, a lid 3 is mounted on a shoulder member 2 of a pot body 1 by a hinge 4 (see FIG. 2A) so as to be freely opened and closed. An operation panel 6 is provided on an upper surface of a beak portion 5 provided at a front end of the shoulder member 2, and a discharge port 7 for hot water is provided below the operation panel. The lid 3 is provided with a knob 8.
[0010]
As shown in FIG. 2, a vacuum double container 9 is housed inside the pot body 1. As shown in FIG. 3, the lid 3 includes a lid main body 11 and a metal lower plate 12 detachably attached to a lower surface thereof. The lid body 11 is configured by combining an inner lid 14 with the lower surface of an upper lid 13 (see FIGS. 2A and 7), and the lower plate 12 is fixed to the lower surface of the inner lid 14 with three screws 15. Is done.
[0011]
Bosses 17 having screw holes 16 on the lower surface of the inner lid 14 are provided at three locations around the center point of the inner lid 14 at regular intervals for fixing with the screws 15 (see FIG. 3). A positioning projection 18 is provided near one of the boss portions 17 among the three boss portions 17. In addition, a steam valve guide projection 19, a steam passage hole 21, and the like are provided at the center of the lower surface of the inner lid 14, and a hook hole 22 is provided on the front surface of the inner lid 14.
[0012]
As shown in FIG. 2A, a hook 23 is slidably incorporated in the front part of the upper surface of the inner lid 14 in the front-rear direction, and is urged forward by a spring 24. The knob 8 is engaged with a part of the hook 23. The tip of the hook 23 projects forward from the hook hole 22 and is engaged with the engagement recess 25 of the beak 5.
[0013]
As shown in FIG. 3, the lower plate 12 has a disk shape, a packing 26 is attached to an outer peripheral edge, and a steam hole 27 composed of a plurality of small holes is provided in a central portion. Outside the steam holes 27, recesses 28 are provided at three locations around the center point of the lower plate 12 at equal intervals so as to match the bosses 17 described above. Each recess 28 is recessed from the lower surface of the lower plate 12 to the upper surface side thereof, and has an insertion hole 29 for the screw 15 on the bottom surface. Further, a positioning hole 31 corresponding to the positioning protrusion 18 is provided in one concave portion 28 close to the screw insertion hole 29.
[0014]
As shown in FIG. 2A, the lower plate 12 is provided with a gradient such that the central portion thereof gradually falls downward. Since the bottom surface of the concave portion 28 is horizontal, the depth of the concave portion 28 is shallow on the outer peripheral side of the lower plate 12 and deep on the central side, as shown in FIG. The positioning hole 31 is formed on the outer peripheral side of the concave portion 28, that is, a shallow portion, and the insertion hole 29 is formed on the central side, that is, a deep portion. The depth h of the portion of the positioning hole 31 is formed to be equal to or greater than the protrusion amount of the positioning protrusion 18 protruding downward from the portion. The depth of the insertion hole 29 is formed sufficiently deeper than the height of the screw head of the screw 15 inserted here.
[0015]
Therefore, the lower plate 12 is fitted to the lower surface of the lid main body 11 (that is, the lower surface of the inner lid 14), and the positioning hole 31 is inserted into the distal end of the positioning projection 18 to perform positioning. Are aligned with the screw holes 16 of the bosses 17 and tightened with the screws 15, and the lower plate 12 is fixed with the packing 26 on the outer peripheral edge thereof in close contact with the peripheral edge of the inner lid 14.
[0016]
With the lower plate 12 attached as described above, the tip of the positioning projection 18 and the screw head of the screw 15 are both inside the concave portion 28 and do not protrude from the lower surface of the lower plate 12 (FIG. 2A ) (B)).
[0017]
Next, other structures of the electric pot will be described. First, as shown in FIGS. 4A to 4F, the hook 23 has a square planar shape, and the front end edge is the engaging portion 32. The engaging portion 32 is disengaged from the engaging recess 25. A rising portion 33 is provided at the rear end edge on the opposite side, and is engaged with the knob 8. The intermediate portion of the engaging portion 32 is an acute angle portion 34 as seen from the cross-sectional view (see FIG. 4E), and the other portions are as shown in FIG. The rounded portion 35 is formed.
[0018]
On the other hand, as shown in FIGS. 5 (a) and 5 (b), the upper edge 36 of the engagement recess 25 has the middle portion 36a projecting most rearward with respect to the back surface 37 of the beak portion 5, and both sides are gently inclined. Both ends are at the same height as the back surface 37. The cross-sectional shape of the intermediate portion 36a is formed at an acute angle as shown in FIGS.
[0019]
As shown in FIG. 6A, when the lid 3 is closed, the hook 23 is pushed down while the engaging portion 32 is in contact with the upper edge 36 of the engaging recess 25, as shown in FIG. As shown in ()), immediately before the engagement, the acute angle portion 34 of the hook 23 and the intermediate portion 36a of the upper edge portion 36 are almost in a point contact state, and the entire engagement portion 32 of the hook 23 is engaged. It falls into the recess 25, and the lid 3 is closed. The operation when opening the lid 3 is opposite to the above.
[0020]
Regardless of whether the lid 3 is closed or opened, when the user releases his / her hand from the lid 3 just before closing (or immediately after opening) as shown in FIG. If the movement is stopped, the degree of opening of the lid 3 is small, so that the user may erroneously recognize that the hook 3 is in the engaged state. Therefore, in such a state, the acute angle portion 34 of the hook 23 is engaged with the intermediate portion 36a of the upper edge portion 36 as described above so that the opening and closing of the lid 3 does not stop.
[0021]
The above problem can be solved by forming the engaging portion 32 of the hook 23 at an acute angle over the entire length thereof. However, since the user feels pain when touching the engaging portion 32, the acute angle portion 34 is formed at the intermediate portion. Is limited to a narrow range, and most of the both sides are rounded portions 35 so that no pain is felt.
[0022]
FIG. 7 shows the knob 8 attached to the upper lid 13 of the lid 3. A printing film 40 made of a polyester film or the like is adhered to the upper surface of the knob 8 for decoration or the like. The bonding portion 38 of the printing film 40 is formed on a surface lower than the surface of the knob 8. In other words, the outer periphery of the bonding portion 38 is surrounded by the rib 39.
[0023]
The printing film 40 is bonded to the bonding portion 38. The bonded print film 40 is protected by the ribs 39 around the print film 40, so that the print film 40 is hardly peeled off and exhibits a decorative effect for a long time.
[0024]
【The invention's effect】
As described above, according to the present invention, by providing a concave portion in the lower plate of the lid and providing a positioning hole at the bottom of the concave portion, the tip of the positioning protrusion protruding from the positioning hole can be a fingertip of an operator or a user. This has the effect of increasing the safety. In addition, by providing a screw hole in the above concave portion, it is difficult to touch the screw head, and the safety is further improved.
[Brief description of the drawings]
FIG. 1 is a perspective view of an embodiment; FIG. 2 (a) is a partial sectional view of the same; FIG. 2 (b) is a partially enlarged sectional view of FIG. (A) A perspective view of the same hook (b) A front view of the same (c) A perspective view of the same (d) An enlarged cross-sectional view taken along line ee in the same bottom view (e) and (b) of the figure (f) (b) FIG. 5A is a partial perspective view of a beak part of the same, and FIG. 5B is a plan view of FIG. 6A. FIG. 6A is a cross-sectional view of a hook part of the same. FIG. 7 is an exploded perspective view of an upper lid. FIG. 8 is a perspective view of a conventional lid.
DESCRIPTION OF SYMBOLS 1 Pot main body 2 Shoulder member 3 Lid 4 Hinge 5 Beak part 6 Operation panel 7 Discharge port 8 Knob 9 Vacuum double container 11 Lid main body 12 Lower plate 13 Upper lid 14 Middle lid 15 Screw 16 Screw hole 17 Boss part 18 Positioning protrusion 19 Steam Valve guide projection 21 Steam passage hole 22 Hook hole 23 Hook 24 Spring 25 Engagement concave portion 26 Packing 27 Steam hole 28 Recessed portion 29 Insertion hole 31 Positioning hole 32 Engaging portion 33 Rising portion 34 Sharp corner 35 Rounded portion 36 Upper edge 36a Intermediate portion 37 Back surface 38 Adhesive portion 39 Rib 40 Printing film

Claims (3)

It consists of a lid main body and a lower plate attached to the bottom surface with screws, and the positioning protrusion provided on the lid main body is inserted into a positioning hole provided on the lower plate, and the tip end protrudes from the lower surface of the lower plate. A lid for an electric pot, wherein the lower plate is provided with a concave portion recessed from a lower surface side to an upper surface side, and the concave portion is provided with the positioning hole. 2. The lid for an electric pot according to claim 1, wherein the depth of the recess is equal to or greater than the length of the tip of the positioning projection. 3. The electric pot lid according to claim 1, wherein the screw insertion hole is provided in the recess.

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