JP6261226B2 - Stove packing - Google Patents

Description

  The present invention relates to a stove packing, and more particularly to a stove packing used to fill a gap formed between a counter top plate fitted with a drop-in stove and a top plate of the stove.

  6 is a perspective view showing a state in which the stove is fitted in the counter, and FIG. 7 is an enlarged cross-sectional view of the VII-VII line shown in FIG.

  Referring to these drawings, the stove (IH cooking heater) 31 is fitted into the counter 35 by the frame 33 provided on the outer periphery of the top plate 32 being hooked on the top surface of the top plate 36 of the counter 35. Fixed in state. At this time, a rubber packing 38 or the like is disposed between the frame 33 and the top surface of the top plate 36 in order to prevent the frame 33 and the top surface of the top plate 36 from being in direct contact with each other. . As a result, the frame 33 and the top surface of the top plate 36 are not in direct contact with each other, but a gap 40 is generated in a corner portion between the frame 33 and the top surface of the top plate 36. When dirt or the like enters the gap 40, there is a problem that the dirt or the like is difficult to remove and becomes unsanitary.

  Thus, a stove packing as shown in Patent Document 1 has been proposed.

  8 is a perspective view of the stove packing shown in Patent Document 1, FIG. 9 is a perspective view showing a use state of the stove packing shown in FIG. 8, and FIG. 10 is shown in FIG. It is an expanded sectional view of a XX line.

  Referring to these drawings, the stove packing 71 is made of an elastic body formed in a deformable rod shape having a constant cross-sectional shape, and is formed by extruding a soft adhesive resin and a non-adhesive resin. It consists of In the stove packing 71, a portion that comes into contact with a top plate and a frame, which will be described later, is formed of an adhesive resin, and the other portions are formed of a non-adhesive resin.

In use, referring to FIG. 9 and FIG. 10, the protrusion 73 is inserted into the gap 40 between the frame 33 provided on the outer periphery of the top plate 32 of the stove 31 and the top surface of the top plate 36 of the counter 35. Then attach the stove packing 71. In mounting, the user inserts the protrusion 73 by pressing the stove packing 71 while tracing the surface of the stove packing 71 with a finger. By doing so, the above-mentioned adhesive resin portion adheres to the stove 31 and the top plate 36 of the counter 35, and dirt or the like can be prevented from entering the gap 40 by the stove packing 71. Further, since the portion other than the adhesive portion is made of non-adhesive resin, it is difficult for dirt to adhere to that portion.
Further, Patent Document 2 has a protrusion similar to the stove packing 71, although the cross-sectional shape is different from that of the stove packing shown in Patent Document 1, and the protrusion further has a gap as described above. A stove packing that varies depending on the size of the stove is shown.

JP 2009-293822 A JP 2013-7537 A

  However, in the conventional stove packing, the surface of the stove packing is traced with a finger when mounting. However, since the surface side is a non-adhesive resin part, it is not a little tacky (adhesive) Sex). Therefore, the sliding property of the surface of the stove packing is not preferable, and it may be difficult to press the surface of the stove packing while smoothly tracing it with a finger. Then, it takes time to install the stove packing.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a stove packing that can be attached efficiently.

  In order to achieve the above object, the invention according to claim 1 is provided on the outer periphery of the top plate of the counter in which the drop-in type stove is fitted and the top plate of the stove, and is hooked on the top surface of the top plate. This is a stove packing used to close a gap generated between the frame and the frame to fix the stove, and is made of an elastic body formed in a deformable rod shape having a constant cross-sectional shape. A first projection that is pushed in, a second projection that is connected to the upper portion of the first projection, and is connected to the side of the first projection, and a placement unit that is mounted on the top plate; And an inclined portion that gently inclines from the upper end portion of the second protrusion portion toward the side end portion of the placement portion, and the first protrusion portion, the second protrusion portion, and the At least the adhesive resin is in contact with each of the mounting parts The other part of the elastic body is formed of a non-adhesive resin containing a slip agent, the non-adhesive resin is a non-adhesive acrylic elastomer resin, the slip agent is a fatty acid amide, The amide is contained in an amount of 0.05 to 1% by weight with respect to the non-sticky acrylic elastomer resin, and the fatty acid amide molecules are arranged on the surface of the non-sticky acrylic elastomer resin. It is what.

  If comprised in this way, the friction coefficient of the surface of non-adhesive resin will fall with a slip agent. Further, the friction coefficient of the surface of the non-adhesive resin can be effectively maintained. Furthermore, the slipperiness of the surface of the stove packing can be effectively maintained. Further, the stove packing can be formed with a desired cross-sectional shape, and no slip agent bleed occurs. Furthermore, the coefficient of friction of the surface of the acrylic elastomer that does not have tackiness decreases.

  As described above, according to the first aspect of the present invention, since the friction coefficient of the surface of the non-adhesive resin is reduced by the slip agent, the tackiness (adhesiveness) of the surface of the non-adhesive resin is reduced, and the stove is The slipperiness of the surface of the packing becomes good, and attachment can be performed efficiently. Further, since the friction coefficient of the surface of the non-adhesive resin can be effectively maintained, the stove packing can be efficiently attached. Furthermore, since the slipperiness of the surface of the stove packing can be effectively maintained, the gap can be appropriately closed with the stove packing. Furthermore, since the stove packing can be formed with a desired cross-sectional shape and no bleed of the slip agent occurs, the predetermined adhesive strength of the adhesive resin of the stove packing can be maintained. Further, since the friction coefficient of the surface of the acrylic elastomer having no adhesiveness is lowered, the tackiness (adhesiveness) of the surface is lowered, thereby improving the slipperiness of the surface.

It is a perspective view which shows roughly the external appearance of the packing for stoves by 1st Embodiment of this invention. It is an expanded sectional view of the II-II line shown in FIG. It is the perspective view which showed the use condition of the stove packing shown in FIG. It is an expanded sectional view of the IV-IV line shown in FIG. It is the schematic diagram which showed the change of the use condition of the stove packing shown in FIG. It is the perspective view which showed the state by which the stove was engage | inserted by the counter. It is an expanded sectional view of the VII-VII line shown in FIG. It is a perspective view of the stove packing shown by patent document 1. FIG. It is the perspective view which showed the use condition of the packing for stoves shown in FIG. It is an expanded sectional view of the XX line shown in FIG.

  FIG. 1 is a perspective view schematically showing the external shape of a stove packing according to a first embodiment of the present invention, and FIG. 2 is an enlarged sectional view taken along line II-II shown in FIG.

  Referring to these drawings, the stove packing 1 is made of an elastic body formed in a deformable rod shape having a constant cross-sectional shape. The cross-sectional shape is such that the first protrusion 3, the second protrusion 4 connected to the top of the first protrusion 3, the side of the first protrusion 3, and the mounting on the top plate described later. It has the mounting part 5 and the inclination part 6 which inclines gently toward the side edge part of the mounting part 5 from the upper edge part of the 2nd projection part 4. As shown in FIG.

  In the stove packing 1, the inner side of the first projecting portion 3, the inner side of the second projecting portion 4, and the lower surface side of the mounting portion 5 are respectively made of adhesive resin, and the other portions are non- It is composed of an adhesive resin. In this embodiment, the adhesive resin is an acrylic elastomer having adhesiveness, and the non-adhesive resin is an acrylic elastomer having no adhesiveness. Furthermore, the acrylic elastomer having no adhesiveness contains a fatty acid amide as a slip agent. The fatty acid amide is a solid surfactant that has a long-chain fatty acid group and an amide group in the molecule and is thermally and chemically stable. In the present embodiment, the fatty acid amide is contained in an amount of 0.2% by weight with respect to the acrylic elastomer having no adhesiveness.

  In forming the stove packing 1, the acrylic elastomer having adhesiveness and the acrylic elastomer having no adhesive mixed with fatty acid amide are formed into one mold using two extruders. By extruding and forming and cooling and solidifying it, the stove packing 1 having a cross-sectional shape as shown in FIG. 2 is obtained. The fatty acid amide molecules are mixed in the non-sticky acrylic elastomer immediately after mixing, but are arranged on the surface of the non-sticky acrylic elastomer by cooling and solidification. As a result, the coefficient of friction of the surface of the acrylic elastomer having no adhesiveness decreases, so that the tackiness (adhesiveness) of the surface decreases, thereby improving the slipperiness of the surface.

  FIG. 3 is a perspective view showing a use state of the stove packing shown in FIG. 1, and FIG. 4 is an enlarged sectional view taken along the line IV-IV shown in FIG. 3, corresponding to FIG. 10 of the prior art. FIG. 5 is a schematic diagram showing a change in use state of the stove packing shown in FIG. In FIG. 4, the stove packing 71 according to the prior art shown in FIG. 10 is replaced with the stove packing 1, but the components other than the stove packing 1 are the same as those according to the prior art. The description here will not be repeated.

  Referring to these drawings, the length of the stove packing 1 is longer than the total length of the outer periphery of the stove 31 so that the entire outer periphery of the stove 31 is continuously surrounded by one stove packing 1. Has been.

  In attaching the stove packing 1 to the stove 31, the mounting portion 5 of the stove packing 1 is placed on the top plate 36, the second projecting portion 4 is along the outer surface of the frame 33, and the frame 33 from the inclined portion 6 side. Press the stove packing 1 toward. As a result, the first protrusion 3 is pushed into the gap 40 between the frame 33 provided on the outer periphery of the top plate 32 of the stove 31 and the top surface of the top plate 36 of the counter 35. At this time, the stove packing 1 is pressed while tracing the inclined portion 6 side of the stove packing 1 with a finger, but the fatty acid amide is added to the acrylic elastomer having no adhesiveness as described above. By being contained, the slipperiness of the surface is improved. Therefore, it can be pressed while smoothly tracing the surface of the inclined portion 6 with a finger, so that the stove packing 1 can be easily attached.

  As a result, as shown in FIG. 5, the shape of the stove packing 1 is changed from the shape represented by the solid line to the shape represented by the two-dot chain line, and the second protrusion 4 is placed on the frame 33 and the mounting portion. 5 are in close contact with the top plate 36. Further, a gentle inclination is formed by the inclined portion 6 from the frame 33 toward the top plate 36. The stove packing 1 is attached to each of the frame 33 and the top plate 36 by the force in the direction indicated by the arrow on the stove packing 1 and the adhesive force of the adhesive resin portion of the stove packing 1. So that it is prevented from shifting after installation.

  Since the stove packing 1 is formed longer than the total length of the outer periphery of the stove 31, the length of the stove packing 1 remaining when the stove packing 1 is attached to almost the entire outer periphery of the stove 31. However, it is longer than the length of the portion of the stove 31 where the stove packing 1 is not yet installed. Therefore, a part of the remaining part of the stove packing 1 is cut off so that the end face of the remaining part of the stove packing 1 is connected to the first end face when the stove packing 1 is attached. Adjust the height. Then, when the remaining portion of the stove packing 1 is attached and the first end face of the stove packing 1 is aligned with the end face of the remaining portion, the attachment of the stove packing 1 is completed.

  Thus, since the stove packing 1 can be pressed while smoothly tracing the surface on the inclined portion 6 side with a finger, the stove packing 1 can be attached efficiently.

  In addition, the single stove packing 1 can freely surround the entire outer periphery of an arbitrary stove 31 and the stove packing 1 has only one seam. Will be improved.

  Furthermore, since the part of the adhesive resin itself constituting the stove packing 1 has adhesiveness, the adhesive strength does not decrease when it is removed or washed, and it can be used repeatedly.

  Furthermore, since no adhesive is used for attachment, the adhesive remains and does not cause new dirt.

  In the above embodiment, the cross-sectional shape of the adhesive resin has a specific shape, but each of the first protrusion, the second protrusion, and the mounting portion is in contact with the top plate and the frame. Any shape may be used as long as the portion is made of at least an adhesive resin.

  In the above embodiment, the stove packing is formed by extruding resin, but it may be formed by a different method such as two-color molding.

  Further, in the above embodiment, the fatty acid amide as the slip agent is contained in a predetermined amount with respect to the acrylic elastomer having no tackiness, but the fatty acid amide is added to the acrylic elastomer having no tackiness. On the other hand, the content is preferably 0.05 to 1% by weight. Because, when the content of fatty acid amide is more than 1% by weight with respect to the acrylic elastomer having no adhesiveness, the slip agent bleeds to the surface side of the adhesive resin of the stove packing, and as a result, This is because the adhesive strength of the stove packing may be reduced. Further, if the content of the fatty acid amide is more than 1% by weight with respect to the acrylic elastomer having no tackiness, there is a possibility that slippage may occur at the time of extrusion molding and the extrusion cannot be performed. On the other hand, if the content of the fatty acid amide is less than 0.05% by weight with respect to the acrylic elastomer that does not have non-adhesiveness, the slipperiness of the surface of the stove packing will deteriorate. In this case, the user may apply an excessive force to the surface on the inclined portion side of the stove packing at the time of attachment, which may cause the stove packing to be attached in an extended state. In such a case, since the initial cross-sectional shape of the stove packing is deformed, the stove packing may not be able to properly close the gap. Moreover, since the stove packing attached in this extended state tends to return to the original shape (length), the joint of the stove packing 1 described above is gradually separated. In this case, there is a possibility that it becomes impossible to prevent the dirt in the gap near the original seam.

  Furthermore, in the above embodiment, the stove packing has a rod shape, but may have other shapes such as a ring shape corresponding to the entire circumference of the stove.

  Furthermore, in the above embodiment, the stove is an IH cooking heater, but the same can be applied to a drop-in gas stove or the like.

The features of the present invention will be described more specifically with reference to the following examples and comparative examples. However, the scope of the present invention is not limited to the examples.
1. Molding of stove packing Extrusion molding of a sticky acrylic elastomer and a sticky acrylic elastomer containing a predetermined amount of fatty acid amide into one mold using two extruders, By cooling and solidifying it, the stove packing according to the embodiment of the present invention was obtained.

In this case, Examples 1 to 3 were prepared by adding 0.05%, 0.1%, or 0.2% by weight of fatty acid amide to the acrylic elastomer having no tackiness, respectively. The stove packing was used. On the other hand, the stove packing formed without the fatty acid amide contained in the acrylic elastomer having no tackiness was used as the stove packing of Comparative Example 1. In addition, the acrylic elastomer which has adhesiveness used in the present Example, the acrylic elastomer which does not have adhesiveness, and fatty acid amide are as follows.
-Adhesive acrylic elastomer: Kuraray Co., Ltd. acrylic thermoplastic elastomer adhesive type (low hardness)
-Adhesive acrylic elastomer: Kuraray Co., Ltd. Acrylic thermoplastic elastomer Non-adhesive type (high hardness)
・ Fatty acid amide: Nippon Kasei Co., Ltd. SLIPAX Measurement of the time required to complete the mounting of the stove packing, and the length of the stove packing after mounting 300 mm of the stove packing according to each of Examples 1 to 3 and Comparative Example 1 was prepared. The time required to complete the attachment on the entire periphery of the stove along the frame from one side of the frame was measured three times. Moreover, the length (L) of the stove packing after being attached in this way was measured. The stove used in this example is as follows.
-Stove: Rinnai Co., Ltd. (internal flame part number RSK-N38W3GB2X)
3. Evaluation of stove packing From the length (L) of each stove packing after mounting as described above, the ratio (elongation rate) of the stove packing extended after mounting is based on the following formula: Asked.
Elongation rate (%) = {length of stove packing after mounting (L)} / (length of stove packing before mounting 300 mm) × 100
Here, for each of Examples 1 to 3 and Comparative Example 1, the time required to complete the attachment of the stove packing, the length of the stove packing after the attachment, and the elongation rate are summarized in Table 1. . Furthermore, the relationship between the content (% by weight) of the fatty acid amide with respect to the acrylic elastomer having no tackiness and the elongation percentage (%) of the stove packing is shown in a graph in Table 2.

まず表１に示したように、粘着性を有しないアクリル系エラストマーに脂肪酸アミドが含有されている場合（実施例１〜実施例３）には、コンロ用パッキンの取り付け完了までの所要時間は平均して２１秒台であった。一方で、粘着性を有しないアクリル系エラストマーに脂肪酸アミドが含有されていない場合（比較例１）には、取り付け完了までに２６秒以上かかった。

First, as shown in Table 1, when the fatty acid amide is contained in the acrylic elastomer having no tackiness (Example 1 to Example 3), the time required to complete the attachment of the stove packing is an average. It was 21 seconds. On the other hand, when the fatty acid amide was not contained in the acrylic elastomer having no tackiness (Comparative Example 1), it took 26 seconds or more to complete the attachment.

  Next, as shown in Table 2, when the content of the fatty acid amide with respect to the acrylic elastomer having no tackiness was 0% by weight (Comparative Example 1), the elongation ratio exceeded 103%. On the other hand, the content of fatty acid amide with respect to the acrylic elastomer having no tackiness is 0.05% by weight (Example 1), 0.1% by weight (Example 2), or 0.2% by weight (Example 3). ), The elongation rate was below 103%.

  Here, it is considered that the elongation ratio of the stove packing is preferably 103% or less. Because if the elongation rate exceeds 103%, the resin forming the stove packing will return to its original length, so when the entire outer periphery of the stove is enclosed with a single stove packing, the stove packing This is because there is a possibility that dirt or the like cannot be prevented from entering the gap by the stove packing near the original seam.

  As described above, from the present embodiment, a predetermined amount of the fatty acid amide is contained in the acrylic elastomer having no adhesiveness, so that the time required to complete the mounting of the stove packing can be shortened, and the gap by the stove packing is reduced. It was found that it was possible to reliably prevent the entry of dirt.

DESCRIPTION OF SYMBOLS 1 ... Stove packing 3 ... 1st protrusion part 4 ... 2nd protrusion part 5 ... Mounting part 6 ... Inclination part 31 ... Stove 32 ... Top plate 33 ... Frame 35 ... Counter 36 ... Top plate 40 ... Gap The same reference numerals denote the same or corresponding parts.

Claims (1)

A gap formed between the top plate of the counter fitted with a drop-in stove and the frame that is provided on the outer periphery of the top plate of the stove and is hooked on the top surface of the top plate to fix the stove. A stove packing used for
It consists of an elastic body formed into a deformable rod shape having a certain cross-sectional shape,
The cross-sectional shape is
A first protrusion that is pushed into the gap and enters,
A second protrusion connected to an upper portion of the first protrusion and extending along an outer surface of the frame;
A mounting portion connected to a side portion of the first projecting portion and mounted on the top plate;
An inclined portion that gently slopes from an upper end portion of the second projecting portion toward a side end portion of the placement portion,
A portion where each of the first protrusion, the second protrusion, and the mounting portion is in contact with the top plate and the frame is formed of at least an adhesive resin, and the other portion of the elastic body is slippery. Formed with a non-adhesive resin containing an agent,
The non-adhesive resin is an acrylic elastomer resin having no adhesiveness, and the slip agent is a fatty acid amide,
The fatty acid amide is contained in an amount of 0.05% by weight to 1% by weight with respect to the acrylic elastomer resin having no tackiness,
A stove packing in which molecules of the fatty acid amide are arranged on a surface of the acrylic elastomer resin having no adhesion.

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