JPH0736601Y2 - Plate mounting structure - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate mounting structure for fixing a plate attached to the surface of a mounting base via bolts and nuts.

[0002]

2. Description of the Related Art In a general plate mounting structure using bolts and nuts, a through hole for loosely inserting a screw shaft portion of a bolt is formed in a mounting base and a plate, and the mounting base is inserted from the through hole on the plate side. The screw shaft portion is loosely inserted into the through hole on the side, and the nut is fastened to the protruding portion of the screw shaft portion.

However, in this case, when the nut is tightened, the head part may rotate together and the plate surface may be damaged.

Such a problem cannot be ignored in a double-sided heating cooker which has a lower heating part and an upper heating part for baking a hamburger from both upper and lower sides thereof, for example. That is, in this heating cooker for double-sided baking, a heating plate, which is a plate that is attached to the surface of the heating unit body that is an attachment base, is attached to the upper heating unit by bolts,
Although the structure is such that it is fixed via nuts, it is necessary to avoid damaging the Teflon-treated layer when tightening the nuts in view of food heating, since the hot plate is subjected to Teflon processing.

[0005]

[Problems to be solved by the device]
As shown in, a through hole 1a is formed in the heating unit main body 1 as an attachment base, and a recess 2a is provided in the surface (the lower surface is the surface in the figure) of the heat plate 2 as a plate.
A through hole 2b is formed, and the head 3a of the hexagon bolt 3 is formed in the recess 2
A structure in which the screw shaft portion 3b is housed in a, the screw shaft portion 3b is loosely inserted into the through hole 2b and the through hole 1a, and the nut 4 is fastened to the protruding portion is considered. The concave portion 2a has a hexagonal shape in accordance with the head portion 3a of the bolt 3 to prevent the bolt 3 from rotating. Further, in this case, the head portion 3a is housed so as to be flush with the plate surface so that no protrusion is formed on the plate surface.

However, in this case, forming the concave portion 2a in a hexagonal concave shape has a problem in that it is considerably troublesome and the processing cost is high.

Therefore, an object of the present invention is to provide a recess for accommodating the head of the bolt in the plate in a structure in which the plate attached to the surface of the mounting base is fixed via bolts and nuts. It is an object of the present invention to provide a plate mounting structure which can prevent the bolt from rotating together with the nut when tightening the nut, can prevent the plate from being scratched, and can easily form the concave portion thereof and can reduce the processing cost.

[0008]

The present invention has a structure in which a plate attached to the surface of a mounting base is fixed by means of bolts and nuts, and the bolt has a head portion which is eccentric to the screw shaft portion. The head is housed in a circular recess formed in the plate surface, and the screw shaft portion is inserted into a through hole penetrating the mounting base and eccentric to the recess. It is characterized by being fastened with a nut.

[0009]

According to the above means, since the bolt has the screw shaft portion which is eccentric with respect to the head, the recess for accommodating the head, which is provided in the surface of the plate, may be circular,
Since the through hole is eccentric to the recess for loosely inserting the screw shaft, the head of the bolt is prevented from rotating when the nut is tightened. In this case, since the head is housed in the recess, the plate surface is not damaged. Also,
Since the head is housed in the recess almost flush with the head, unlike the case where the head protrudes, the head does not damage other parts.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 4 by applying it to a hot plate mounting structure in a heating cooker for both upper and lower side baking such as a hamburger. FIG. 1 shows a heating unit main body 11 of a lower heating unit that is a mounting base.
A structure is shown in which a hot plate 12 as a plate is attached to the surface (the lower surface corresponds to the surface in the figure) of the plate, and the hot plate 12 is fixed via bolts 13 and nuts 14 described below. The hot plate 12 is treated with Teflon.

As shown in FIGS. 3 and 4, the bolt 13
Has a configuration in which the head portion 13a is formed in a circular shape and has a screw shaft portion 13b that is eccentric with respect to the head portion 13a, and the eccentric dimension is H.

On the other hand, a concave portion 12a is provided on the surface of the heating plate 12, and through holes 12b and 11a are formed which are eccentric from the concave portion 12a and penetrate the heating plate 12 and the heating portion main body 11. . Recess 12a and through hole 12
The eccentric dimension h of b and 11a is set to be substantially equal to the eccentric dimension H, and the depth of the recess 12a is the same as that of the head portion 13a.
It is set to be almost equal to the thickness dimension.

As shown in FIG. 1, the bolt 13 and the nut 1
4, when the heating plate 12 is attached to the heating unit body 11, the screw shaft portion 13b is passed through the through holes 12b and 11a,
The head portion 13a is housed in the recess 12a substantially flush with each other, and the protruding portion of the screw shaft portion 13b is fastened with the nut 14. At this time, the head 13a of the bolt 13 is prevented from rotating by the recess 12a. Therefore, the nut 14 can be securely tightened.

According to this embodiment, the bolt 13
Is configured such that the head portion 13a is formed in a circular shape and has a screw shaft portion 13b that is eccentric with respect to the head portion 13a. Therefore, the recess portion 12a for accommodating the head portion, which is provided on the surface of the hot plate 12, is circular. Since the through holes 12b and 11a for loosely inserting the screw shaft portion 13b are eccentric with respect to the concave portion 12a, the bolt 1 can be tightened when the nut 14 is tightened.
The head 13a of 3 is stopped. In this case, the head 13
Since a is contained in the recess 1a, the surface of the heating plate 12 is not damaged. In addition, since the head 13a is housed in the recess 12a so as to be substantially flush therewith, unlike the case where the head 13a protrudes, the head 13a causes another portion (for example, facing the heat plate 12 to be not shown). The lower heating part) is not damaged. However, like this example,
In the case where the head 13a of the bolt 13 constitutes a part of the hot plate 12, it is preferable to subject the head 13a to Teflon processing. In the above embodiment, the present invention is applied to the hot plate mounting structure in the heating cooker for double-sided baking such as hamburger. However, the plate attached to the surface of the mounting base is fixed via the bolts and nuts. Widely applicable to construction.

[0015]

As is apparent from the above description, the present invention provides a plate to be attached to the surface of the mounting base.
In the structure of fixing via bolts and nuts, by forming a recess in the plate that accommodates the head of the bolt, it is possible to prevent the bolt from turning when tightening the nut and prevent the plate from being damaged. In addition, it is possible to easily form the recess, the processing cost is low, and the head does not damage other parts, which is an excellent effect.

[Brief description of drawings]

FIG. 1 is a vertical side view showing an embodiment of the present invention.

FIG. 2 is a vertical sectional side view of a heating unit main body and a heating plate.

[Fig. 3] Side view of the bolt

[Fig. 4] Bottom view of the bolt

FIG. 5 is a diagram corresponding to FIG. 1 showing a reference example.

[Explanation of symbols]

11 is a heating unit main body (mounting base), 11a is a through hole,
Reference numeral 12 is a hot plate (plate), 12a is a concave portion, 13 is a bolt, 13a is a head portion, 13b is a screw shaft portion, and 14 is a nut.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ryoichi Kato 9-109 Nishihioki-cho, Nakagawa-ku, Nagoya, Aichi Prefecture Comet Kato Co., Ltd. (72) Hideaki Matsuura 9-chome, Nishihioki-cho, Nakagawa-ku, Aichi Prefecture 109 Address Comet Kato Co., Ltd. (72) Inventor Saburo Kondo 9-chome Nishihioki-cho, Nakagawa-ku, Nagoya, Aichi 109 Address Comet Kato Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A structure in which a plate attached to a surface of a mounting base is fixed via bolts and nuts, wherein the bolt has a head portion eccentric to a screw shaft portion, and the head portion has a head surface. The screw shaft portion is inserted into a through hole provided through the mounting base and eccentric with respect to the recess, and is tightened by a nut. And plate mounting structure.