JP7096104B2 - Face materials and fittings for fittings - Google Patents

Description

The present invention relates to a face material for fittings and a fitting in which a lock unit arranged between the surface materials is operated by operating a handle attached to the surface of the surface material, such as a door panel or the like.

The face material for fittings used for entrance doors, etc. is provided with a notch at the edge of the main body core material arranged between the surface materials, which is the door end, and the lock core material containing the lock unit is used. The one attached to the notch is provided. In this face material, since the main body core material and the lock portion core material are interposed between the surface materials, it is advantageous in terms of heat insulating property (see, for example, Patent Document 1).

In this type of face material, a notch hole is provided in the surface material to link the lock unit arranged between the surface materials and the operation output portion of the handle attached to the surface of the surface material. An opening is provided in the core material. That is, by inserting the operation output portion protruding from the handle into the notch hole of the surface material and the opening of the lock portion core material, the lock unit housed in the lock portion core material and the operation output portion are linked. ing.

Japanese Unexamined Patent Publication No. 2017-180017

By the way, in the face material in which the main body core material and the lock portion core material are arranged between the surface materials, flammable gas may be generated from the main body core material and the lock portion core material in the event of a fire. As described above, the surface material is provided with a notch hole. Therefore, considering the fire resistance of the face material, there is a concern that if flammable gas is generated between the surface materials, it may leak to the outside through the notch hole.

In view of the above circumstances, it is an object of the present invention to provide face materials and fittings for fittings that can improve fire resistance.

In order to achieve the above object, the face material for fittings according to the present invention is a main body core material which is arranged between the surface materials and has a notch at an edge portion which is a door tip, and the main body core material. A lock core material attached to the notch and accommodating the lock unit inside, and a handle attached to the surface of the surface material are provided, and a notch hole formed in the surface material and an opening formed in the lock core material. A face material for fittings, wherein the engaging member of the lock unit can be operated by an operation from the handle by linking the lock unit and the operation output unit of the handle via the portion. A lock cover is provided at the opening of the lock portion core material so as to surround the periphery of the operation output portion, and a heat-expandable member is provided at a portion of the lock cover facing the operation output portion. It is a feature.

According to the present invention, in the event of a fire, the heat-expandable member provided on the lock cover expands, and the expanded heat-expandable member closes the notch hole of the surface material. Moreover, the operation output part of the handle is inserted through the lock cover. Therefore, even if the core material of the lock portion to which the lock cover is attached is melted or burnt down, there is no possibility that the lock cover will fall off and the notch hole can be closed. As a result, even when flammable gas is generated between the surface materials, it is possible to prevent the flammable gas from leaking to the outside through the notch hole, which is advantageous in terms of fire resistance.

It is a figure which looked at the fitting which applied the face material which is an embodiment of this invention from the outdoor side. It is a cross-sectional view which shows the main part of the fitting shown in FIG. 1 in an enlarged manner. It is an enlarged view of the main part which looked at the face material of the fitting shown in FIG. 1 from the door end side. The face material of the fitting shown in FIG. 1 is viewed from the indoor side, and is a view showing a state in which the surface material and the handle are removed. It shows the surface material applied to the face material of the fitting shown in FIG. 1, (a) is the figure which shows the surface material of the outdoor side, (b) is the figure which shows the surface material of the indoor side. It is an exploded perspective view of the main body core material and the lock part core material applied to the face material of the fitting shown in FIG. 1 as seen from the indoor side. It is an exploded perspective view of the main body core material and the lock part core material applied to the face material of the fitting shown in FIG. 1 as seen from the outdoor side. It is a partially enlarged view of the vertical cross section which shows the state which the handle is attached to the face material of the fitting shown in FIG. The lock cover to be attached to the opening of the lock core material shown in FIG. 6 is shown. FIG. 6A is a perspective view seen from the indoor side, and FIG. 6B is a perspective view seen from the outdoor side.

Hereinafter, preferred embodiments of the face material for fittings and fittings according to the present invention will be described in detail with reference to the accompanying drawings.
1 to 4 show fittings to which face materials for fittings according to the embodiment of the present invention are applied. The fitting exemplified here is a door used for the entrance of a house, and includes a frame body 10 and a door panel (face material for fittings) 20 supported by the frame body 10 so as to be openable and closable via a hinge 1. .. The frame body 10 is configured by framing the upper frame 11, the lower frame 12, and the left and right vertical frames 13, 14 in four directions. In the door panel 20, surface materials 22 and 23 are arranged on the two surfaces of the aggregate 21 having a four-circumferential framework, respectively, and the main body core material 24 is further arranged in a region surrounded by the aggregate 21 between the surface materials 22 and 23. It is configured by setting. As shown in FIG. 5, the surface materials 22 and 23 have a rectangular shape having substantially the same size as the door panel 20, and have a thin plate shape formed of a metal such as a steel material. The main body core material 24 has a thick plate shape having heat insulating properties such as EPS (Expanded Poly-Styrene). The surface of the main body core material 24 and the surface materials 22 and 23 are adhered to each other by an adhesive.

As shown in FIGS. 4, 6 and 7, the main body core material 24 described above is provided with a notch 25, a fitting groove 26, and a fitting recess 27. The notch 25 is a rectangular space provided at a portion substantially central in the height direction on the prospective surface 24a which is the door end of the main body core material 24. The notch 25 penetrates the main body core material 24 and is open to a prospective surface 24a which is a door tip. The fitting groove 26 is a rectangular notch having a small width extending upward from the upper corner of the notch 25, and is formed so as to penetrate the main body core material 24 like the notch 25. .. The fitting recess 27 is a recess formed downward from the lower corner of the notch 25. The fitting recess 27 opens only on the surface 24b of the main body core material 24 facing the room, and is formed to have a wider width on the left and right than the fitting groove 26.

Here, the prospective surface is a surface along the prospective direction. The prospective direction is a direction along the depth of the fitting as shown by an arrow A in the figure.

A lock portion core material 30 is attached to the notch 25 of the main body core material 24. As shown in FIGS. 6 and 7, the lock portion core material 30 has a rectangular parallelepiped base portion 31, an upper protrusion 32 provided on the upper portion of the base portion 31, and a lower protrusion 33 provided on the lower portion of the base portion 31. It was done. The base portion 31 has a size that can be fitted to the cutout portion 25 of the main body core material 24, and is configured to have substantially the same plate thickness as the main body core material 24. When the base portion 31 is fitted to the notch portion 25, the one end surface 31a which is the door end side of the base portion 31 and the prospective surface 24a which is the door end of the main body core material 24 are located on substantially the same plane. Will be done. The upper protrusion 32 projects upward from the other end surface 31b side on the upper surface of the base portion 31, and fits into the fitting groove 26 of the main body core material 24 when the base portion 31 is fitted into the notch 25 of the main body core material 24. It is a thing. The upper protrusion 32 has a dimension along the prospective direction smaller than the plate thickness of the main body core material 24, and protrudes to the outside when the base portion 31 is fitted to the notch 25 of the main body core material 24. There is no such thing. The lower protrusion 33 projects downward from the other end surface 31b side on the lower surface of the base portion 31, and is mounted in the fitting recess 27 of the main body core material 24 when the base portion 31 is fitted into the notch 25 of the main body core material 24. It is a thing. The lower protrusion 33 has a plate thickness substantially the same as the depth of the fitting recess 27, and the surface facing the room when mounted in the fitting recess 27 is on a plane substantially the same as the surface of the main body core material 24. Will be located. Further, the lower protrusion 33 is configured so that the dimensions along the left and right sides are substantially the same as the fitting recess 27.

The lock portion core material 30 having the above configuration has the base portion 31 of the main body core material 24 only when the upper protrusion 32 is fitted in the fitting groove 26 and the lower protrusion 33 is mounted in the fitting recess 27. It is possible to fit the notch 25 of the above. That is, when the lock portion core material 30 is in an upside-down posture or a left-right upside-down posture, the upper protrusion 32 and the lower protrusion 33 interfere with the main body core material 24, and the base portion 31 cannot be fitted to the notch portion 25. .. Therefore, according to this fitting, the lock portion core material 30 is always in the correct posture with respect to the main body core material 24, in other words, the notch portion 25 is in the correct posture in the vertical and horizontal directions with respect to the main body core material 24. It becomes possible to fit. Further, when the upper protrusion 32 is fitted into the fitting groove 26, the lock portion core material 30 is in a temporarily fixed state in which the detachment from the main body core material 24 is restricted. Therefore, it is not necessary to hold the lock portion core material 30 by hand when assembling the door panel 20, which is advantageous in terms of workability.

As shown in FIG. 4, the lock units 40A and 40B are housed in the base portion 31 of the lock portion core material 30 described above at positions above and below each other. These lock units 40A and 40B have case bodies 41A and 41B, each of which has a rectangular parallelepiped shape, and flange-shaped boss plates 42A and 42B provided on a portion serving as one end surface of the case bodies 41A and 41B. The case bodies 41A and 41B are housed in the base 31 of the lock core material 30 in a state where the boss plates 42A and 42B are exposed to the outside on the door end side. The two lock units 40A and 40B have substantially the same external dimensions as each other, and the dimensions of the case bodies 41A and 41B along the left and right directions are smaller than the width dimensions of the base 31 along the left and right sides. An upper dead bolt (engagement member) 43A and a latch bolt (engagement member) 44A can appear and disappear with respect to the boss plate 42A in the lock unit arranged above (hereinafter, referred to as an upper lock unit 40A when distinguished). It is arranged in. A lower dead bolt (engagement member) 43B is arranged so as to be able to appear and disappear with respect to the boss plate 42B in the lock unit arranged below (hereinafter, referred to as a lower lock unit 40B when distinguished).

Although not explicitly shown in the figure, in the present embodiment, an electric actuator is provided inside the case bodies 41A and 41B, and the appearance state of the dead bolts 43A and 43B can be changed by driving the electric actuator. The lock units 40A and 40B of the above are applied. The power for driving the electric actuator will be supplied from an external commercial power source through a power cable (not shown) connected to the case body 41B of the lower lock unit 40B. Further, the lower lock unit 40B and the upper lock unit 40A are electrically connected by a linking cable (not shown) connected to the case bodies 41A and 41B, respectively, to supply power and communicate with each other. It is possible to do. As the lock units 40A and 40B, it is not always necessary to apply an electric type.

As shown in FIGS. 2 and 3, the door panel 20 has an outdoor surface material (hereinafter referred to as an outer surface material 22 when distinguished) and an indoor surface material (hereinafter referred to as an inner surface material when distinguished). The outdoor handle 50A and the indoor handle 50B are arranged at the respective door tips in (23). As shown in FIG. 3, the outdoor handle 50A and the indoor handle 50B are provided with mounting portions 52A and 52B at both ends of the operating portions 51A and 51B extending vertically, and the mounting portions 52A and 52B are upper lock units. It is attached to the door panel 20 in a state of being arranged at a position corresponding to 40A and the lower lock unit 40B. The handles 50A and 50B attached to the door panel 20 can operate the operation portions 51A and 51B with respect to the attachment portions 52A and 52B. Further, each of the two mounting portions 52A of the outdoor handle 50A is provided with a metal key cylinder (operation output section) 56, and each of the two mounting portions 52B of the indoor handle 50B is provided with a thumb turn (operation output section). 53 is provided.

Although not shown in the figure, these handles 50A and 50B are linked to the upper lock unit 40A and the lower lock unit 40B so that the appearance states of the latch bolt 44A, the upper dead bolt 43A and the lower dead bolt 43B can be changed. There is. Specifically, in the outdoor handle 50A, when the operation portion 51A is opened with respect to the mounting portion 52A and operated, the latch bolt 44A is linked to the upper lock unit 40A so as to be immersed in the case body 41A. Further, a handle-side cable (not shown) is provided between the key cylinder 56 and the lower lock unit 40B. Therefore, when a key (not shown) is inserted into the key cylinder 56 to perform the locking / unlocking operation, the appearance states of the dead bolts 43A and 43B of the upper lock unit 40A and the lower lock unit 40B can be switched. .. In the indoor handle 50B, when the operation portion 51B is opened with respect to the mounting portion 52B and operated, the latch bolt 44A is linked to the upper lock unit 40A so as to be immersed in the case body 41A. Further, by locking / unlocking each thumb turn 53, it is possible to switch between the appearance states of the dead bolts 43A and 43B of the upper lock unit 40A and the lower lock unit 40B.

As shown in FIG. 5A, the outer surface material 22 is provided with a first outer upper notch hole 22a and a second outer upper notch hole 22b at a portion corresponding to the mounting portion 52A attached above the outdoor handle 50A. A first outer lower notch hole 22c and a second outer lower notch hole 22d are provided at a portion corresponding to the attachment portion 52A to be attached below. The first outer upper notch hole 22a has a circular shape for inserting the key cylinder 56 of the outdoor handle 50A. The second outer upper notch hole 22b has a substantially rectangular shape for inserting the linking member 54 (see FIG. 8) of the outdoor handle 50A and the two boss portions 55. The first outer lower cutout hole 22c has a circular shape for inserting the key cylinder 56 of the outdoor handle 50A. The second outer lower cutout hole 22d has a rectangular shape for inserting the boss portion 55 or the like of the outdoor handle 50A.

Further, as shown in FIG. 5B, the inner surface material 23 is provided with an inner upper notch hole 23a at a portion corresponding to the mounting portion 52B mounted above the indoor handle 50B, and the mounting portion to be mounted below. An inner and lower notch hole 23b is provided at a portion corresponding to 52B. The inner upper notch hole 23a and the inner lower notch hole 23b each form a circular shape for inserting an output member (not shown) of the thumb turn 53. Reference numerals 22e and 23c in FIG. 5 are boss holes for inserting only the boss portions 55 of the handles 50A and 50B, respectively.

On the other hand, the lock core material disposed between these surface materials is integrally formed by combining the separately molded outdoor side portion 30A and the indoor side portion 30B, and has two upper and lower parts inside. It has accommodating portions 35A and 35B. The upper accommodating portion (hereinafter referred to as an upper accommodating portion 35A when distinguished) is a space for accommodating the upper lock unit 40A, and the lower accommodating portion (hereinafter referred to as a lower accommodating portion 35B when distinguished) is. , A space for accommodating the lower lock unit 40B. The upper accommodating portion 35A and the lower accommodating portion 35B are open to one end surface 31a of the lock portion core material 30, and the case main body 41A of the upper lock unit 40A and the case main body 41B of the lower lock unit 40B are inserted from the respective openings. It is possible to do.

The lock portion core material 30 is provided with a plurality of openings 36, 37 at portions facing the notch holes 22a, 22b, 22c, 22d, 23a, 23b and the boss holes 22e, 23c of the surface materials 22, 23. .. The openings 36 and 37 allow the accommodating portions 35A and 35B of the lock portion core material 30 to communicate with each other to the outside. In the present embodiment, the outdoor upper opening 36A and the outer lower opening 37A are provided on the outdoor side portion 30A, and the inner upper opening 36B and the inner lower opening 37B are provided on the indoor side portion 30B. The outer upper opening 36A is a vertically long opening formed in a size including the first outer upper notch hole 22a and the second outer upper notch hole 22b of the outer surface material 22, and the outer lower opening 37A is the outer surface material. It is a vertically long opening formed in a size including the first outer lower notch hole 22c and the second outer lower notch hole 22d of 22. The inner upper opening 36B is an irregular opening formed in a size including the inner upper notch hole 23a and the upper boss hole 23c, and the inner lower opening 37B has an inner lower notch hole 23b and a lower boss hole 23c. It is an irregular opening formed to include the size.

As shown in FIGS. 6 and 7, a lock cover 60 is attached to the outer lower opening 37A of the lock core material 30. As shown in FIG. 9, the lock cover 60 has support plate portions 62 on each of the four sides of the rectangular reference plate portion 61, and is made of a metal such as stainless steel. The reference plate portion 61 is formed with an insertion hole 61a having a size capable of inserting the key cylinder 56 and the boss portion 55 of the outdoor handle 50A. The support plate portion 62 is arranged so as to cover the inner peripheral surface of the outer lower opening portion 37A, and the heat-expandable member 63 is attached to each inner surface. The heat-expandable member 63 is a nonflammable or flame-retardant refractory member that expands due to heat, and for example, a graphite-containing foaming material having heat expandability can be applied. Further, the lock cover 60 is provided with a claw portion 64 at a portion corresponding to the upper and lower portions of the outer lower opening portion 37A. The claw portion 64 is a plate-shaped portion protruding toward the outer peripheral side from the support plate portion 62, and is arranged at a portion substantially at the center of each. As shown in FIG. 7, on the outdoor surface of the outdoor portion 30A of the lock portion core material 30, the locking recess 38 on which the claw portion 64 can be arranged at the upper and lower portions of the outer lower opening 37A. Is provided. The above-mentioned lock cover 60 is attached to the outdoor portion 30A of the lock portion core material 30 in a state where the support plate portion 62 is inserted into the outer lower opening portion 37A and the claw portions 64 are arranged in the locking recesses 38, respectively. be.

In this door panel 20, the outdoor handle 50A is attached to the surface of the outer surface material 22 and the inner surface is attached with the upper lock unit 40A and the lower lock unit 40B arranged in the accommodating portions 35A and 35B of the lock portion core material 30. An indoor handle 50B is attached to the surface of the material 23, and the respective handles 50A and 50B and the lock units 40A and 40B are linked to each other.

According to the fitting provided with the door panel 20 configured as described above, when the door panel 20 is exposed to a high temperature such as in the event of a fire, the heat-expandable member 63 arranged on the lock cover 60 expands. The first outer lower cutout hole 22c and the second outer lower cutout hole 22d of the outer surface material 22 are closed by the expanded heat-expandable member 63. At this time, the lock core material 30 that supports the lock cover 60 may be melted or burned by heat before the thermally expandable member 63 expands. However, since the key cylinder 56 and the boss portion 55 of the outdoor handle 50A are inserted into the insertion hole 61a of the lock cover 60, these key cylinders 56 are even after the support force of the lock portion core material 30 is lost. And the boss portion 55 are maintained at positions corresponding to the first outer lower cutout hole 22c and the second outer lower cutout hole 22d of the outer surface material 22. Therefore, the first outer lower cutout hole 22c and the second outer lower cutout hole 22d of the outer surface material 22 can be reliably closed, and flammable gas is tentatively generated from the main body core material 24 and the lock portion core material 30. Even so, there is no risk of leakage to the outside through these notch holes 22c and 22d, and fire resistance can be improved.

In the above-described embodiment, the lock cover 60 is provided only in the outer lower opening portion 37A corresponding to the first outer lower cut hole 22c and the second outer lower cut hole 22d of the surface material 22 in the lock portion core material 30. However, it is of course possible to dispose a lock cover having a similar structure in the outer upper opening 36A corresponding to the other notch holes 22a and 22b. Further, the lock cover is arranged in the inner upper opening 36B and the inner lower opening 37B of the lock portion core material 30 with the inner upper notch hole 23a and the inner lower notch hole 23b formed in the inner surface material 23 as targets for blocking. May be. When the lock cover is arranged in the inner upper opening 36B or the inner lower opening 37B of the lock portion core material 30, the output member of the thumb turn 53 is inserted into the lock cover. Therefore, after the support force of the lock portion core material 30 is lost, the thumb turn 53 and the boss portion 55 are maintained at positions corresponding to the inner and upper notch holes 23a and the inner and lower notch holes 23b of the inner surface material 23. Become. In this case, the shape of the lock cover does not necessarily have to be rectangular, and may be appropriately deformed according to the shape of the notch hole to be arranged.

As described above, the face material for fittings according to the present invention is arranged between the surface materials and has a main body core material having a notch at the edge portion serving as a door tip and a notch portion of the main body core material. It is provided with a lock core material that is mounted on the surface material and houses a lock unit inside, and a handle attached to the surface of the surface material, and has a notch hole formed in the surface material and an opening formed in the lock portion core material. It is a face material for fittings in which the engaging member of the lock unit can be operated by the operation from the handle by linking the lock unit and the operation output portion of the handle via the lock unit. A lock cover is provided at the opening of the core material so as to surround the periphery of the operation output portion, and a heat-expandable member is provided at a portion of the lock cover facing the operation output portion. There is.

According to the present invention, in the event of a fire, the heat-expandable member provided on the lock cover expands, and the expanded heat-expandable member closes the notch hole of the surface material. Moreover, the operation output part of the handle is inserted through the lock cover. Therefore, even if the core material of the lock portion to which the lock cover is attached is melted or burnt down, there is no possibility that the lock cover will fall off and the notch hole can be closed. As a result, even when flammable gas is generated between the surface materials, it is possible to prevent the flammable gas from leaking to the outside through the notch hole, which is advantageous in terms of fire resistance.

Further, according to the present invention, in the above-mentioned face material for fittings, the opening of the lock portion core material has a rectangular opening, and the lock cover is supported on each of the four sides of the rectangular reference plate portion. It has a plate portion, and the reference plate portion is provided with an insertion hole through which the operation output portion can be inserted, and the heat-expandable member is attached to the inner surface of the support plate portion. It is characterized by being.

According to the present invention, since the lock cover is formed in a rectangular shape, the lock cover can be formed relatively easily, for example, the support plate portion can be formed by bending the four sides of the reference plate portion. It will be possible.

Further, according to the present invention, in the above-mentioned face material for fittings, the lock cover is provided with a claw portion protruding toward the outer peripheral side from the support plate portion, and is a portion around the opening portion in the lock portion core material. Is characterized in that a locking recess that engages with the claw portion is provided on the surface of the above.

According to the present invention, by engaging the claw portion with the locking recess, the lock cover can be attached to the lock portion core material in a positioned state.

Further, the fitting according to the present invention is characterized by including the above-mentioned face material for fittings and a frame body that supports the face material for fittings so as to be openable and closable.

According to the present invention, it is possible to provide a fitting that exhibits the above-mentioned effects.

10 frame, 20 door panel, 22,23 surface material, 22a, 22b, 22c, 22d, 23a, 23b notch hole, 24 main body core material, 25 notch, 30 lock core material, 36A, 36B, 37A, 37B opening Part, 38 locking recess, 40A, 40B lock unit, 43A, 43B dead bolt, 44A latch bolt, 50A, 50B handle, 53 thumb turn, 56 key cylinder, 60 lock cover, 61 reference plate part, 61a insertion hole, 62 support Plate part, 63 thermally expandable member, 64 claw part

Claims (4)

The main body core material, which is arranged between the surface materials and has a notch at the edge of the door,
A lock core material that is attached to the notch of the main body core material and contains a lock unit inside.
A handle attached to the surface of the surface material is provided, and the lock unit and the operation output portion of the handle are linked via a notch hole formed in the surface material and an opening formed in the lock portion core material. By doing so, it is a face material for fittings in which the engaging member of the lock unit can be operated by the operation from the handle.
A lock cover is provided at the opening of the lock portion core material so as to surround the periphery of the operation output portion.
A face material for fittings, characterized in that a heat-expandable member is provided at a portion of the lock cover facing the operation output portion. The opening of the lock core material has a rectangular opening.
The lock cover has support plate portions on each of the four sides of the rectangular reference plate portion.
The reference plate portion is provided with an insertion hole through which the operation output portion can be inserted.
The face material for fittings according to claim 1, wherein the heat-expandable member is attached to the inner surface of the support plate portion. The lock cover is provided with a claw portion that projects toward the outer peripheral side of the support plate portion.
The face material for fittings according to claim 2, wherein a locking recess that engages with the claw portion is provided on the surface of a portion of the lock portion core material that surrounds the opening. A fitting having a fitting face material according to any one of claims 1 to 3 and a frame body that supports the fitting face material so as to be openable and closable.

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