JPH0696906B2 - Heating floor structure - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a heating floor structure, and in particular, a heating device having a built-in hot water pipe is arranged between a floor base material such as a concrete floor slab and a floor finishing material. Related to the heating floor structure.

(Prior Art) Since the above heating floor structure can obtain a uniform heating feeling without polluting the air, it is recently being widely used as a comfortable, hygienic, and highly safe heating means. .

In this case, as a heating device having a built-in hot water pipe, a hot water pipe is incorporated into a hard panel material such as particle board, and a metal radiator plate is adhered to the upper surface of the hard panel material to have a thickness of about 12 mm. Known are a hard panel type and a soft mat type in which a flexible hot water pipe is incorporated into a soft mat having a thickness of about 12 mm to 20 mm made of foamed polyethylene or the like which is foamed about 30 times.

The hard panel type is inconvenient to handle because of its heavy weight, and it feels harder to walk than the floor structure without a heating device because it is hard, while the soft mat type Has advantages such as being lighter than a hard panel type and not inconvenient to handle even if it is a large size, having good heat retention, and having a soft feel and good walking feeling. Therefore, it is gradually being adopted.

(Problems to be solved by the invention) However, since the soft mat type is inferior in strength to the rigid panel type, the soft mat is likely to be damaged due to unevenness of the floor base such as the concrete floor slab. It is necessary to dispose a smooth panel material such as plywood on the floor base and support the soft mat with the panel material.

Therefore, when a lightweight floor impact force acts on the floor finishing material, such as when walking, the panel material vibrates on the floor slab and the vibration is transmitted to the floor base material, resulting in a floor impact sound downstairs. Be transmitted. In particular, when a wooden floor material is used as the floor finishing material, the vibration of the panel material and the vibration of the wooden floor material are combined, so that the floor impact sound is more noisy in the downstairs.

In addition, when a heavy impact force such as a child jumps on the floor finishing material, the soft mat is compressed and deformed between the floor finishing material and the panel material because the soft mat is supported only by the panel material such as plywood. Therefore, there is a problem in that the hot water pipe incorporated inside the soft mat is easily pressed against the panel material and crushed, or is bent and bent in the mat to be easily damaged.

In view of the above, the present invention reduces the lightweight floor impact sound of the heating floor using the above heating floor mat to reduce the transmission of the impact sound to the downstairs, and also the hot water inside the soft mat due to the heavy floor impact force. An object of the present invention is to provide a heating floor structure in which there is no risk of pipe damage.

(Means for Solving the Problem) In order to achieve the above object, the invention of claim (1) deforms the floor impact force transmitted to the rigid panel material via the heating floor mat at the time of floor impact from the heating floor mat. It is supported by a plurality of cushioning support members that are easy to perform.

Specifically, the solution means taken by the invention of claim (1) is that a hot water pipe is incorporated in a soft mat made of a foam synthetic resin mat or the like between a floor base made of a concrete floor slab or the like and a floor finishing material. For a heating floor structure having a soft heating floor mat formed between them, a plurality of cushioning support members having a static spring constant smaller than that of the heating floor mat are laid on the floor base, and the plurality of cushioning support members are provided. A rigid panel material is laid across a plurality of cushioning support members, the heating floor mat is laid on the rigid panel material, and a floor finishing material is laid on the heating floor mat. It is configured to be.

Further, the invention of claim (2) disperses the floor impact force in a wide range and surely. Therefore, in the structure of claim (1), a plate material such as plywood is used as the cushioning support member on the upper surface of the cushioning material layer. The rigid panel materials are joined and integrated with each other through the plate materials.

Further, according to the invention of claim (3), the floor impact force is dispersed in a wide range and reliably, and the vibration transmitted through the rigid panel material at the time of floor impact is suppressed. The cushioning support member is a laminated body in which a plate material such as plywood and a damping material layer are laminated on the upper surface of the cushioning material layer, and the rigid panel materials are joined and integrated with each other through the plate material. It is something to add.

Further, in the invention of claim (4), since the vibration of the rigid panel material which is generated at the time of floor impact is quickly attenuated, the rigid panel material has two layers of upper and lower panels in the structures of claims (1) to (3). And a joining portion between the lower layer panel members is provided on the cushioning support member, and a joining portion between the upper layer panel members is provided at a position different from the joining portion between the lower layer panel members. To do.

(Operation) According to the configuration of the invention of claim (1), since the rigid panel material is laid across the plurality of cushioning support members, the rigid panel material is added to the floor finishing material to be a rigid panel material via the floor heating mat. The transmitted vibration energy is dispersed and absorbed by the plurality of cushioning support members.

In addition, since the static spring constant of the cushioning support member is smaller than that of the heating floor mat, the heavy floor impact force applied to the floor finishing material is dispersed to the plurality of cushioning support members, and then the cushioning support member is increased. It transforms and absorbs. For this reason, the heating floor mat moves up and down while being sandwiched between the rigid panel material and the floor finishing material, and the heating floor mat itself does not compress and deform so much.

According to the configuration of the invention as set forth in claim (2), since the rigid panel materials are integrated with each other via the plate material laminated on the upper surface of the cushioning material layer, the rigid panel materials vibrate as a unit at the time of floor impact. Therefore, the vibration of the rigid panel material is surely dispersed and absorbed in the wide range of cushioning support members.

According to the configuration of the invention as set forth in claim (3), since the cushioning support member is a laminated body in which the plate material and the damping material layer are laminated on the upper surface of the cushioning material layer, it is transmitted to the plate material via the rigid panel during floor impact. The vibration energy applied is damped by the damping material layer.

According to the configuration of the invention as set forth in claim (4), since the rigid panel member is composed of the upper and lower two-layer panel members having the joint portions at different positions, the bending vibrations of the respective panel members cancel each other out. The vibration of the material is quickly damped.

(Example) Hereinafter, the Example of this invention is described based on drawing.

FIG. 1 shows a heating floor structure according to a first embodiment of the present invention,
A cushioning support member 2A made up of a plurality of cushioning mats 21 is laid at appropriate intervals on a floor base 1 made of a concrete floor slab or the like, and a plurality of rigid panel members 3 are placed on the cushioning support member 2A. Placed over the flexible support member 2A, a heating floor mat 4 is laid on the rigid panel material 3, and a floor finishing material 5 is laid on the heating floor mat 4.

Incidentally, if a space is provided between the cushioning support members 2A as described above, a main pipe for hot water or the like can be arranged between the cushioning support members 2A, but when the pipe is not necessary, the cushioning property is reduced. The support members 2A may be laid so that they are butted against each other.

As the floor finishing material 5, a wooden floor material, a carpet material, or the like can be appropriately used. When a wooden floor material is used as the floor finishing material 5, a groove is formed on the lower surface of the heating floor mat 4 in order to prevent the floor mat from drying and shrinking.
It is preferable to give 51,51.

The heating floor mat 4 has a thickness of about 12 mm and a soft mat 41 made of cross-linked foamed polyethylene expanded about 30 times,
The soft mat 41 comprises a hot water pipe 42 made of cross-linked polyethylene and having an outer diameter of 8 mm, which is incorporated at a pitch of about 50 mm. The soft mat 41 is not limited to the above, and a soft one made of a foam synthetic resin mat or the like can be used as appropriate, and the hot water pipe 42 is not limited to the above, and the soft mat is not limited to the above. A flexible synthetic resin pipe or the like can be used as appropriate.

In this case, the soft mat 41 has a static spring constant of 3 × in order to prevent the soft mat 41 from being dented by the weight of furniture or the like placed on the floor finishing material 5 and damaging the hot water pipe 42 therein.
It is preferably set within the range of 10 ⁶ to 4 × 10 ⁶ N / m ² .

As the rigid panel material 3, plywood, particle board,
A wood board such as a wood cement board or a metal molded panel can be used.

The shock absorbent mat 21, the glass wool mat density 48~80kg / m ^3, rock wool mat density 60~150kg / m ^3, synthetic fiber mat having a density of 20 and 100 kg / m ^3, the expansion ratio
A foamed polyurethane mat or foamed polyethylene mat of 35 to 50 times or a foamed rubber mat of which expansion ratio is 50 to 60 times can be appropriately used, but the static spring constant of the cushioning mat 21 is larger than that of the soft mat 41. Set to a smaller one. When the static spring constant per unit area of the soft mat 41 is in the range of 3 × 10 ⁶ to 4 × 10 ⁶ N / m ² , the static spring constant of the buffer mat 21 is 1 × 10 ^{6 to} 3 ×. It is preferably set within the range of 10 ⁶ N / m ² . Further, the thickness of the cushioning mat 21 is preferably thicker than that of the soft mat 41, specifically, about 12 to 50 mm.

Since the heating floor structure according to the first embodiment is configured as described above, when a floor impact force is applied to the floor finishing material 5,
The floor impact force is temporarily reduced by the soft mat 41 of the heating floor mat 4 and is transmitted to the rigid panel material 3, and the rigid panel material 3 vibrates in the vertical direction, but the vibration of the rigid panel material 3 is located above and below it. It is absorbed by the soft mat 41 and the buffer mat 21. Therefore, the floor impact sound transmitted downstairs is reduced.

Further, since the cushioning mat 21 having a static spring constant smaller than that of the soft mat 41 is arranged below the rigid panel material 3,
When a heavy floor impact force such as a child jumps on the floor finish material 5, the cushion floor 21 is largely deformed and absorbed by the heavy floor impact force. Therefore, the soft mat 41 moves up and down while being sandwiched between the rigid panel material 3 and the floor finishing material 5, and the soft mat 41 itself does not deform so much. For this reason, the hot water pipe 42 incorporated inside the soft mat 41 is unlikely to be crushed or bent.

2 and 3 show a heating floor structure according to a second embodiment of the present invention. In the second embodiment, the structure of the cushioning support member 2B is different from that of the first embodiment. That is, the cushioning support member 2B has the cushioning mat 21 as the cushioning material layer.
A damping mat 22 as a damping material layer arranged on the cushioning mat 21 and a plate material arranged on the damping mat 22
23, a cushioning mat 21, a damping mat 22 and a plate 23
And are integrated by an adhesive or the like. Instead of the second embodiment, the plate member 23 may be arranged on the cushioning mat 21, and the damping mat 22 may be arranged on the plate member 23.

As the vibration damping mat 22, a rubber mat, an asphalt mat, or a soft synthetic resin mat such as vinyl chloride can be appropriately used. In this case, the vibration damping mat 22 is provided for promptly reducing the floor vibration caused by the floor impact force and preventing the propagation of the floor impact sound. Instead of the vibration damping mat 22, a sound insulating mat made of a metal plate or a high density resin mat mixed with an inorganic filler may be arranged, or the vibration damping mat 22 and the sound insulating mat may be combined. You may arrange.

In this way, the damping mat between the cushioning mat 21 and the plate 23
When the 21 and the sound insulation mat are interposed, the vibration energy transmitted to the plate member 23 at the time of floor impact is attenuated by the vibration damping mat 21 and the sound insulation mat, so that the floor impact sound transmitted to the downstairs is reduced.

As the plate material 23, plywood, particle board, wood fiber board of medium specific gravity, wood cement board, or the like that can be nailed can be appropriately used.

Further, the rigid panel material 3 is integrated with the plate material 23 of the cushioning support member 2 by the nail member 6 such as a screw nail alone or by using the nail member 6 and the adhesive together, whereby the rigid panel material 3 is formed. The three members are also joined to each other via the plate member 23.

In the heating floor structure according to the second embodiment, as described above, since the rigid panel material 3 is integrated with the plate material 23 of the cushioning support member 2 to join the rigid panel materials 3 to each other, the floor finishing material 5 When a floor impact force is applied to the rigid panel material 3, the rigid panel material 3 vibrates as a unit, and the vibration is effectively absorbed by the wide range of cushioning mats 21 arranged therebelow. Extremely low and hot water pipe 42
The damage of the will be extremely reduced.

FIG. 4 shows a modified example of the heating floor structure according to the second embodiment, in which the rigid panel member 3 comprises a lower layer panel member 31 and an upper layer panel member 32 arranged on the lower layer panel member 31. Has been done.

As the material of the lower layer panel member 31 and the upper layer panel member 32, the above-mentioned plywood, particle board, wood cement board or metal molding panel can be appropriately used, and both may be the same material or different. It may be a material. Further, for the lower panel member 31, the nail member 6
Although it is preferable that the upper layer panel member 32 is integrated with the plate member 23 of the cushioning support member 2 by, for example, the upper layer panel member 32 may be simply laid on the lower layer panel member 31.

In this case, the joint between the lower panel members 31 is provided on the cushioning support member 2, and the joint between the upper panel members 32 is provided at a position different from the position of the joint between the lower panel members 31. Has been.

In this way, the rigid panel material 3 is attached to the upper and lower two-layer panel members 3
If it is composed of 2,31 and the position of the joint is shifted,
Upper and lower 2 generated when floor impact material 5 is applied with floor impact force
Since the bending vibrations of the panel members 32 and 31 of the layers are canceled by the other panel members 31 and 32, the rigid panel member 3 does not need to be integrated with the panel members 32 and 31 of the upper and lower two layers.
Vibrations are quickly dampened.

However, if the upper and lower two-layer panel members 32, 31 are integrated with each other by nails or the like, the rigidity of the entire floor surface is improved and the rigid panel material 3 becomes more difficult to vibrate. Can be thin.

Hereinafter, the measurement results of the floor impact sound measurement level according to JIS-A-1418 performed for evaluating the present invention will be described.

First, as a specific example 1, a heating floor structure having the same structure as the second embodiment shown in FIGS. 2 and 3 and having the following specifications was prepared.

Floor base 1: Concrete floor slab with a thickness of 150 mm Cushioning support member 2: Cushioning mat: Glass wool mat with a thickness of 25 mm and a density of 64 kg / m ³ (Static spring constant: 1.2 × 10 ⁶ N / m ² ) Vibration control Mat: Vinyl chloride mat with a thickness of 4 mm Plate material: Plywood with a thickness of 5.5 mm Rigid panel material 3: Plywood with a thickness of 12 mm Heating floor mat 4: Soft mat: Based on cross-linked foamed polyethylene, heat radiation consisting of aluminum foil on the top surface The thickness of the board is that the back surface material made of polyethylene film is attached to the bottom surface.
mm mat (Static spring constant: 3.6 × 10 ⁶ N / m ² ) Hot water pipe: Pipe made of cross-linked polyethylene with a diameter of 8 mm Floor finishing material 5: Plywood floor material with a thickness of 8.5 mm Next, as specific example 2, A heating floor structure having the same structure as the modification shown in FIG. 4 and having the following specifications was prepared.

Floor base 1: Same composition as Example 1 Cushioning support member 2: Same composition as Example 1 Rigid panel material 3: Lower layer panel member: 12 mm thick particle board Upper layer panel member: 9 mm thick plywood Heating floor Mat 4: Configuration similar to Concrete Example 1 Floor finishing material 5: Configuration similar to Concrete Example 1 Next, as Comparative Example 1, a heating floor structure described below shown in FIG. 5 was prepared.

Floor base a: Same composition as in Example 1 Insulation material b: Insulation material made of expanded polystyrene with a thickness of 40 mm (trade name: Nedafoam, static spring constant: 1.2 × 10 ⁶ N / m ² ) Heating floor mat c: Floor Finishing Material d: Configuration Similar to Concrete Example 1 As Comparative Example 2, heating floor mats similar to Concrete Example were placed on a floor base similar to Concrete Example 1 at 300 mm intervals. A heating floor structure was prepared by laying on the floor joists arranged through a plywood sheet having a thickness of 12 mm, and laying a floor finishing material similar to that of Example 1 on the plywood.

The measurement results of the floor impact sound in Concrete Examples 1 and 2 and Comparative Examples 1 and 2 are as shown in FIG. That is, the heating floor structure of Comparative Example 2 is at a level at which the floor impact sound is felt at L-71, and the heating floor structure of Comparative Example 1 is at the level at which L-64 is at a level at which floor impact noise is annoying. On the other hand, the heating floor structure of Concrete Example 1 was L-50, and the heating floor structure of Concrete Example 2 was L-48, both of which were at a level where light floor impact noise was not noticeable.

As described above, the floor impact sound levels of the concrete examples 1 and 2 are reduced by 14 to 16 dB as compared with the comparative example 1, and the sound insulation performance is extremely excellent against the lightweight floor impact sound. It could be confirmed.

In this case, it is considered that the specific example 2 is superior to the specific example 1 because the rigid panel material 3 is composed of two layers of panel members. Although the improvement of Example 2 is slightly smaller than that of Example 1, the rigid panel material is a single layer, and L-50 can be used without increasing the floor height.
The floor impact sound has been improved to a level where it is not annoying, and it is a noise that is not annoying in our daily life and has sufficient sound insulation.

(Effect of the invention) As described above, according to the heating floor structure according to the invention of claim (1), the rigid panel member is spread over the plurality of cushioning support members having a smaller static spring constant than the heating floor mat. Laying,
Since the heating floor mat is laid on the rigid panel material, the vibration of the rigid panel material at the time of floor impact is dispersed and absorbed by a plurality of buffer support members that are easily deformed, so that the floor impact sound transmitted to the downstairs is reduced. In addition, the heavy floor impact force is dispersed through the rigid panel to the plurality of cushioning support members, and the cushioning support members are largely deformed and absorbed, so that there is no damage to the hot water pipe inside the heating floor mat, and a feeling of walking can be obtained. By using a good soft heating floor mat, it is possible to construct a heating floor having good walking feeling and shock absorption.

Further, according to the invention of claim (2), since the rigid panel materials are integrated with each other through the nailable plate material laminated on the upper surface of the cushioning material layer, the vibration of the rigid panel material at the time of floor impact is prevented. Since it is dispersed in a wide range of cushioning support members and is reliably absorbed, floor impact noise transmitted downstairs can be greatly reduced.

Further, according to the invention of claim (3), since the cushioning support member is constituted by the laminated body in which the plate material and the damping material layer are laminated on the upper surface of the cushioning material layer, the vibration transmitted to the plate material at the time of floor impact is damped. Since it is suppressed by the material layer, the floor impact sound transmitted downstairs can be further reduced.

Further, according to the invention of claim (4), since the rigid panel material is constituted by the upper and lower two-layer panel members having different joint positions, the bending vibrations of the respective panel members which are generated at the time of floor impact are canceled each other, and the rigid panel is provided. Since the vibration of the material is quickly attenuated, the floor impact sound transmitted downstairs can be further reduced.

[Brief description of drawings]

1 is a partially cutaway perspective view of a heating floor structure according to a first embodiment of the present invention, and FIGS. 2 and 3 show a heating floor structure according to a second embodiment of the present invention. Is a partially cutaway perspective view, FIG. 3 is a cross-sectional view, FIG. 4 is a cross-sectional view showing a modified example of the second embodiment, FIG. 5 is a cross-sectional view of a conventional heating floor structure, and FIG. It is a figure which shows the measurement result of the lightweight floor impact sound level performed with respect to the example and the comparative example. 1 …… Floor base 2A, 2B …… Cushioning support member 3 …… Rigid panel material 4 …… Heating panel material 5 …… Floor finishing material 6 …… Nail member 21 …… Cushioning mat (cushioning material layer) 22 …… Damping mat (damping material layer) 23 …… Plate material 31 …… Lower layer panel member 32 …… Upper layer panel member 41 …… Soft mat 42 …… Hot water pipe

Claims (4)

[Claims] 1. A heating system in which a soft heating floor mat made by incorporating a hot water pipe into a soft mat made of a foam synthetic resin mat or the like is interposed between a floor base material made of a concrete floor slab or the like and a floor finishing material. In the floor structure, a plurality of cushioning support members having a static spring constant smaller than that of the heating floor mat are laid on the floor base, and the cushioning support members are laid over the cushioning support members. A heating floor structure, characterized in that a rigid panel material is laid, the heating floor mat is laid on the rigid panel material, and a floor finishing material is laid on the heating floor mat. 2. The shock-absorbing support member comprises a laminated body in which plate materials such as plywood are laminated on the upper surface of a cushioning material layer, and the rigid panel materials are joined and integrated with each other via the plate materials. The heating floor structure according to claim 1, which is characterized. 3. The cushioning support member comprises a laminated body in which a plate material such as plywood and a damping material layer are laminated on the upper surface of the cushioning material layer,
The heating floor structure according to claim 1, wherein the rigid panel members are integrally joined to each other through the plate member. 4. The rigid panel member is composed of upper and lower two-layer panel members, the joint between lower layer panel members is provided on the cushioning support member, and the joint between upper layer panel members is the lower layer panel member. The heating floor structure according to any one of claims (1) to (3), characterized in that the heating floor structure is provided at a position different from the joint between the two.