JP5963300B2 - door - Google Patents

Description

  The present invention relates to a door provided with a door closer.

  Generally, a door is provided with a door closer so that the opened door automatically and slowly closes. Conventionally, door closers have been mounted with the rear surface in close contact with the door surface. When a fire breaks out, heat is transmitted from the door, the door closer becomes hot, and the fluid (oil) sealed inside the door closer expands. There was a risk of fluid leaking around the screw that adjusts the closing speed of the door and igniting.

In FIGS. 3 and 4 of Patent Document 1, a heat insulating plate 5 made of asbestos or the like is provided between the door closer and the door so that heat is not easily transmitted from the door to the door closer, and the door closer is covered with the cover member 3. It describes that leaked oil is prevented from splashing on the floor and adhering to the door. In this door, since the recessed portion 12 on the back side of the door closer is closed with the heat insulating plate 5 and is entirely covered with the cover member 3, if the door closer is heated in the event of a fire, the door closer tends to accumulate heat and oil There is a risk of promoting the leak.
Further, FIG. 13 of Patent Document 1 describes that the heat radiating plate 5 is provided with a heat radiating through hole 5d extending vertically, but the back side of the door closer is provided even if such a through hole 5d is provided. Therefore, the heat of the door closer cannot be dissipated even if the heat insulating plate 5 is dissipated.
Furthermore, in FIG. 26 of Patent Document 1, it is described that heat is hardly transmitted from the door to the door closer by opening a gap 47 between the door closer and the door instead of providing a heat insulating plate. However, the gap 47 is a very small gap that is narrower than the thickness of the mounting bracket 6, and most of the gap 47 is closed by the mounting bracket 6, so that the heat is dissipated when the door closer is heated. You can hardly expect the effect.

JP 2009-180036 A

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a door that can radiate heat from the door closer in a fire and suppress overheating of fluid in the door closer.

In order to achieve the above object, a door according to the first aspect of the present invention includes a door and a door closer attached to the door, and the fluid of the door and the door closer is arranged so that air can flow in the recess on the back side of the door closer. A ventilation part is provided between the holding part and the ventilation part is formed by providing a notch in a part adjacent to the door of the door closer, and the notch has a cover that can communicate with the ventilation part in the event of a fire. Characterized by being installed

According to a second aspect of the present invention, a door includes a door and a door closer attached to the door, and a ventilation portion is provided between the door and the fluid holding portion of the door closer so that air can flow in a recess on the back side of the door closer. The ventilation portion is formed by providing a gap holding member between the door and the door closer, and the gap holding member has a comb-like cross-sectional shape having a large number of fins in the vertical direction. It is characterized in that the tip is arranged toward the door closer .

A door according to a third aspect of the present invention includes a door and a door closer attached to the door, and a ventilation portion is provided between the door and the fluid holding portion of the door closer so that air can circulate in a recess on the back side of the door closer. The ventilation part is formed by providing a notch in the part adjacent to the door of the upper and lower walls of the door closer, and the area of the notch on the upper wall is larger than the area of the notch on the lower wall. Is also large .

According to a fourth aspect of the present invention, a door includes a door and a door closer attached to the door, and a ventilation portion is provided between the door and the fluid holding portion of the door closer so that air can flow through a recess on the back side of the door closer. The ventilation part is formed by providing a notch in a portion adjacent to the door of the upper and lower walls of the door closer, and the notch of the upper wall is provided at both left and right end parts. The notch is provided near the center.

In the door according to the first aspect of the present invention, a ventilation portion is provided between the door and the fluid holding portion of the door closer so that air can flow in the concave portion on the rear side of the door closer. Since air flows through the concave portion on the side and heat dissipation of the door closer is promoted, overheating of the fluid in the door closer during a fire can be suppressed. As a result, it is possible to prevent the fluid from expanding and leaking from the door closer, thereby improving the fireproof performance. Since the ventilation portion is formed by providing a notch in a portion adjacent to the door of the door closer, the ventilation portion can be formed by simply attaching the door closer to the door. Since the notch is provided with a cover that can communicate with the ventilation part at the time of a fire, the notch is not conspicuous at the normal time, and the ventilation part can be formed only at the time of a fire.

In the door according to the second aspect of the present invention , a ventilation portion is provided between the door and the fluid holding portion of the door closer so that air can flow in the concave portion on the rear side of the door closer. Since air flows through the concave portion on the side and heat dissipation of the door closer is promoted, overheating of the fluid in the door closer during a fire can be suppressed. As a result, it is possible to prevent the fluid from expanding and leaking from the door closer, thereby improving the fireproof performance. Since the ventilation portion is formed by providing the interval holding member between the door and the door closer, the ventilation portion can be easily formed without special work on the door closer. The spacing member has a comb-shaped cross section with a large number of fins in the vertical direction, and the tip of the fin is arranged toward the door closer, so that heat transfer from the door is radiated from the fins in the event of a fire. Efficiency can be improved and heat conduction from the door to the door closer side can also be suppressed.

The door according to the invention of claim 3 is provided with a ventilation portion between the door and the fluid holding portion of the door closer so that air can flow through the recess on the rear side of the door closer, so that the rear surface of the door closer in the event of a fire. Since air flows through the concave portion on the side and heat dissipation of the door closer is promoted, overheating of the fluid in the door closer during a fire can be suppressed. As a result, it is possible to prevent the fluid from expanding and leaking from the door closer, thereby improving the fireproof performance. Since the ventilation portion is formed by providing a notch in a portion adjacent to the door on the upper and lower walls of the door closer, the ventilation portion can be formed by simply attaching the door closer to the door. Since the area of the upper wall notch is larger than the area of the lower wall notch, air circulation to the recess on the back surface of the door closer is promoted in the event of a fire, and heat dissipation efficiency is increased.

In the door according to the fourth aspect of the present invention, a ventilation portion is provided between the door and the fluid holding portion of the door closer so that air can flow in the concave portion on the rear side of the door closer. Since air flows through the concave portion on the side and heat dissipation of the door closer is promoted, overheating of the fluid in the door closer during a fire can be suppressed. As a result, it is possible to prevent the fluid from expanding and leaking from the door closer, thereby improving the fireproof performance. Since the ventilation portion is formed by providing a notch in a portion adjacent to the door on the upper and lower walls of the door closer, the ventilation portion can be formed by simply attaching the door closer to the door. The notch on the upper wall is provided on both left and right ends, and the notch on the lower wall is provided near the center, so that air that has entered from the notch on the lower wall flows in the left and right ends in the recess. The entire area can be efficiently dissipated.

It is a principal part top view of the door of 1st Embodiment. It is a principal part longitudinal cross-sectional view of the door of 1st Embodiment. It is a longitudinal section showing a 1st embodiment of a door of the present invention. It is a room inner side front view of the door. It is a principal part longitudinal cross-sectional view which shows the modification of the door of 1st Embodiment. It is a principal part top view of the door of 2nd Embodiment. It is a principal part longitudinal cross-sectional view of the door of 2nd Embodiment. It is a principal part top view which shows the modification of the door of 2nd Embodiment. It is a principal part top view which shows the other modification of the door of 2nd Embodiment. It is a principal part top view of the door of 3rd Embodiment. It is a principal part longitudinal cross-sectional view of the door of 3rd Embodiment. It is a figure which shows 4th Embodiment of the door of this invention, Comprising: (a) is a top view of the door closer attached to the door, (b) is the indoor side front view of the door closer, (c) is the bottom face of the door closer FIG. It is AA sectional drawing of FIG. It is a figure which shows 5th Embodiment of the door of this invention, Comprising: (a) is a top view of the door closer attached to the door, (b) is the indoor side front view of the door closer, (c) is the bottom face of the door closer FIG. It is BB sectional drawing of FIG. It is a figure which shows 6th Embodiment of the door of this invention, Comprising: (a) is a top view of the door closer attached to the door, (b) is the indoor side front view of the door closer, (c) is the bottom face of the door closer FIG. It is CC sectional drawing of FIG. It is a figure which shows 7th Embodiment of the door of this invention, Comprising: (a) is a top view of the door closer attached to the door, (b) is the indoor side front view of the door closer, (c) is the bottom face of the door closer FIG. It is DD sectional drawing of FIG. It is a figure which shows 8th Embodiment of the door of this invention, Comprising: (a) is a top view of the door closer attached to the door, (b) is the indoor side front view of the door closer, (c) is the bottom face of the door closer FIG. It is EE sectional drawing of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 4 show a first embodiment of the door of the present invention. This door is provided at the entrance / exit of an entrance or a doorway, and as shown in FIGS. 3 and 4, a door frame 11 attached to a building opening of a building, and a hinge 12 on the door frame 11. And a door closer 2 attached at a position closer to the suspension base at the upper part of the indoor side surface of the door 1. The door closer 2 has a vertical rotating shaft 13, one end of a link mechanism 14 formed by connecting two arms to the rotating shaft 13 is connected, and the other end of the link mechanism 14 is attached to the upper frame 15. It is connected to the bracket 16. The structure of the door closer 2 itself is the same as that of the prior art, and a detailed description is omitted. However, a damper and a spring using the viscosity of the fluid (oil) are built in. When the door 1 is opened and released, the rotation The shaft 13 is slowly rotated by the action of the damper and the spring, and the door 1 is slowly and automatically closed. The door closer 2 has speed adjusting screws 17a and 17b on one side surface (see FIG. 3), and the speed at which the door 1 is closed can be adjusted by operating this.

  As shown in FIG. 1, the door closer 2 has mounting ears 18, 18 protruding on the left and right sides, and spacers 6, 6 are sandwiched between the left and right ears 18, 18 and the door 1, respectively. The ears 18, 18 are fixed to the back plate 19 provided inside the door 1 with screws 20, and an interval 21 of about 10 mm is provided between the back of the door closer 2 and the door 1. As shown in FIG. 2, the door closer 2 is formed with a recessed portion 3 that is open on the door 1 side of the fluid holding portion 4, and between the ear portions 18 and 18 of the door closer 2 and the door 1 as described above. By arranging the spacers 6, 6, a ventilation portion 5 is formed between the door 1 and the fluid holding portion 4 of the door closer 2 so as to face the concave portion 3 of the door closer 2 and communicate with the top and bottom. The spacer 6 can be formed of a metal such as aluminum, a nonflammable resin, or the like.

  As described above, by providing the ventilation portion 5 between the door 1 and the fluid holding portion 4 of the door closer 2, as shown by an arrow 22 in FIG. The air flows into the concave portion 3 and air is taken away from the concave portion 3 by removing heat from the door closer 2. Thereby, heat dissipation of the door closer 2 is promoted, and overheating of the fluid in the door closer 2 at the time of a fire can be suppressed. As a result, it is possible to prevent the fluid from expanding and leaking from the door closer 2, and the fireproof performance is improved. In addition, since the door closer 2 is attached to the door 1 with an interval 21, there is an effect of preventing heat from being transmitted from the door 1 to the door closer 2.

  FIG. 5 shows a modification of the door of the first embodiment. In this example, a thin low thermal conductivity material 23 is sandwiched between the door 1 and the spacer 6. Thereby, the heat transfer from the door 1 to the door closer 2 can be suppressed, and the temperature rise of the door closer 2 can be further suppressed. As the low thermal conductivity material 23, a resin, rubber, elastomer-based material that has been subjected to a flame retardant treatment, or the like can be used. The thin low thermal conductivity material 23 may be sandwiched between the spacer 6 and the door closer 2.

  6 and 7 show a second embodiment of the door of the present invention. In this door, a spacer 6 disposed between the door 1 and the door closer 2 is integrally formed of an extruded aluminum material. The spacer 6 is formed with a U-shaped attachment portion 24 that is in contact with the back surface of the ear portion 18 of the door closer 2 at both ends, and the connecting plate 25 that connects the left and right attachment portions 24 is in contact with the door 1. The connecting plate 25 is provided with a plurality of fins 37 projecting toward the door closer 2 at intervals in the left-right direction, and has a comb-shaped (heat sink shape) cross-sectional shape. By interposing such a spacer 6, a ventilation portion 5 is formed between the door 1 and the fluid holding portion 4 of the door closer 2 so as to face the concave portion 3 on the back surface of the door closer and communicate with the top and bottom.

  As in the case of the first embodiment, the door of the present embodiment also has the air that has risen during the fire flows into the recess 3 on the back side of the door closer 2 as shown by the arrow 22 in FIG. Heat is taken away and discharged to the outside of the recess 3 to promote heat dissipation of the door closer 2, suppressing overheating of the fluid in the door closer 2 during a fire and preventing fluid from leaking out of the door closer 2. Since the spacer 6 has a comb shape having a large number of fins 37, heat transmitted from the door 1 is radiated from the fins 37, so that the heat radiation efficiency can be improved, and heat from the door 1 to the door closer 2 side can be improved. Conduction can also be suppressed.

  FIG. 8 shows a modification of the door of the second embodiment. In this example, the spacer 6 is fixed to the back plate 19 inside the door 1 with screws 26, and the door closer mounting screws 24 are screwed into the mounting portions 24 of the spacer 6 to fix the door closer 2. In this way, by fixing the spacer 6 to the door 1 first and then fixing the door closer 2 to the mounting portion 24 of the spacer 6, the mounting operation of the door closer 2 is facilitated.

  FIG. 9 shows another modification of the door of the second embodiment. The spacer 6 has a shape that does not have the fins 37 on the connecting plate 25. The spacer 6 can be manufactured by bending a steel material. The door of the present embodiment also has high heat dissipation performance because air flows from the entire area in the left-right direction to the recess 3 on the back surface of the door closer. 6 and 8 are also the same, but the attachment portions 24 at both ends of the spacer 6 are connected by a connecting plate 25, and the connecting plate 25 is screwed to the door 1 so that the door closer 2 can be secured. Even if the door 2 is separated from the door 1, the door closer 2 can be firmly fixed. Furthermore, by making the attachment part 6 of the spacer 6 U-shaped with the door 1 open, heat transfer from the door 1 to the door closer 2 can be suppressed, and heat dissipation can also be promoted from the attachment part 24. The design of the opening portion 38 of the attachment portion 24 can be improved by closing at least the lower side with a cap formed of resin or the like.

  For the doors of the first and second embodiments described above, if the door closer 2 is mounted apart from the door 1 with the spacer 6 interposed therebetween, it becomes a fireproof door, and the non-fireproof door uses the spacer 6. Instead, the door closer 2 may be attached in contact with the door 1. That is, the door closer 2 can be used for both a fireproof door and a non-fireproof door.

  10 and 11 show a third embodiment of the door of the present invention. The door closer 2 has a rectangular box shape without the ears 18, and is attached to the door 1 by being lifted about 10 mm from the door 1. The mounting bracket 7 is fixed to a back plate 19 provided in the door 1 with screws 27, and projecting pieces 28a and 28b projecting toward the door closer 2 side are formed longer at both ends. The door closer 2 has one protrusion 28a of the mounting bracket 7 inserted into the recess 3 on the back of the door closer and engaged with a protrusion 29 protruding from the recess 3, and the other protrusion 28b is inserted into the recess 3 on the back of the door closer. It is attached by fixing with screws 30 from the side. By interposing the mounting bracket 7 as described above, a ventilation portion 5 is formed between the door 1 and the fluid holding portion 4 of the door closer 2 so as to face the concave portion 3 on the back surface of the door closer and communicate with the top and bottom.

  As in the doors of the first and second embodiments, the air of the present embodiment also flows into the recess 3 on the back side of the door closer 2 as shown by the arrow 22 in FIG. By depriving the heat of the door closer 2 and discharging it out of the recess 3, heat release of the door closer 2 is promoted, overheating of the fluid in the door closer 2 in the event of a fire can be suppressed, and leakage of fluid from the door closer 2 can be prevented. . By mounting the door closer 2 so as to float from the door 1, it is possible to prevent heat from being transmitted from the door 1 to the door closer 2.

  For the door of the third embodiment described above, two types of mounting bracket 7 are prepared, one having a long projecting piece 28a, 28b at both ends (the one shown in FIG. 10) and one having a short projecting piece 28a, 28b. If the door closer 2 is mounted apart from the door 1 using the mounting bracket 7 having a long length 28a, 28b, it becomes a fire-proof door, and the door closer 2 is attached to the door 1 using the mounting bracket 7 having a short protruding piece 28a, 28b. It can be made a non-fireproof door if installed in contact. That is, the door closer 2 can be used for both a fireproof door and a non-fireproof door.

  12 and 13 show a fourth embodiment of the door of the present invention. As shown in FIG. 13, the door closer 2 is attached in contact with the indoor side surface of the door 1 via a steel mounting bracket 31, and is attached to the upper lateral wall 32 and the lower lateral wall 33 of the door closer 2 as shown in FIG. ), (C), notches 8a and 8b are formed in the width of the door closer 2 adjacent to the door 1, and covers 34a and 34b are attached to the notches 8a and 8b. The cover 34a attached to the upper horizontal wall 32 has notches 35a and 35b formed at both left and right ends, and the cover 34b attached to the lower horizontal wall 33 has a notch 35c formed at the center thereof. The notches 35a, 35b, and 35c form a ventilation portion 5 that communicates vertically between the door 1 and the fluid holding portion 4 of the door closer 2 so as to face the concave portion 3 on the back side of the door closer.

  Similarly to the doors of the first to third embodiments, the air of the present embodiment is also shown in FIG. 12 and FIG. 13 by the arrow 22 in FIG. The air flows into the concave portion 3 on the back side of the door closer 2, and air takes heat from the door closer 2 and is discharged out of the concave portion 3 through the notches 35 a and 35 b of the cover 34 a of the upper horizontal wall 32, thereby radiating heat from the door closer 2. The overheating of the fluid in the door closer 2 during a fire can be suppressed, and the fluid can be prevented from leaking from the door closer 2. The cover 34b of the lower horizontal wall 33 is formed with a notch 35c at the center, and the cover 34a of the upper horizontal wall 32 is formed with notches 35a and 35b at both left and right ends, as shown in FIG. As described above, the air 22 that has entered from the center of the lower horizontal wall 33 flows substantially horizontally in the direction of both ends in the recess 3 and is discharged from both ends of the upper horizontal wall 32, so that the entire area in the recess 3 can be efficiently radiated. Further, since the areas of the cutouts 35a and 35b of the cover 34a of the upper horizontal wall 32 are larger than the area of the cutout 35c of the cover 34b of the lower horizontal wall 33, air circulation to the recess 3 is promoted and heat dissipation efficiency is improved. It is done. Since the covers 34a and 34b are attached to the cutouts 8a and 8b of the upper horizontal wall 32 and the lower horizontal wall 33, the cutouts 8a and 8b are not conspicuous and the design is good.

  When the door 1 is opened to the left and right, the door closer 2 is turned upside down and attached to the door 1 so that the speed adjusting screws 17a and 17b are directed to the easy-to-operate direction. Since the notches 8a and 8b are formed in the same shape in the lower side wall 33 and the lower side wall 33, the opening hand can be adapted to both the left and right simply by changing the upper and lower covers 34a and 34b.

The cutouts 8a and 8b can be exposed without attaching the covers 34a and 34b to the cutouts 8a and 8b of the upper horizontal wall 32 and the lower horizontal wall 33. In that case, since air circulates from the entire width of the door closer 2 to the recess 3 on the back, the heat dissipation effect is further enhanced.
Further, the covers 34a and 34b can be easily melted or dropped by heat from a fire. In this case, the cutouts 8a and 8b are not conspicuous by the covers 34a and 34b in a normal state, and the covers 34a and 34b are melted or dropped in the event of a fire, and the cutouts 8a and 8b are opened, and a high heat dissipation effect is obtained.
Further, in place of attaching the covers 34a and 34b, providing a valve that opens by an upward air flow in the event of a fire can provide the same effect as when a cover that melts or drops in the event of a fire is attached.
These points are the same in the fifth to eighth embodiments described later.

  14 and 15 show a fifth embodiment of the door of the present invention. As shown in FIG. 14, the door closer 2 has notches 8 c, 8 d, 8 e formed on the upper horizontal wall 32 adjacent to the door 1 at the left and right end portions and the central portion, and the lower horizontal wall 33 also has an upper horizontal wall. As with 32, notches 8f, 8g, and 8h are formed at three locations. Of the three cutouts 8c, 8d, and 8e on the upper horizontal wall 32, the cutout 8d at the center is closed by attaching the cover 34c, and the three cutouts 8f, 8g, and 8h on the lower horizontal wall 33 are closed. Of these, the notches 8f and 8h at both ends are closed by attaching covers 34d and 34e, and the two notches 8c and 8e on the remaining upper horizontal wall and the notch 8g on the lower lateral wall 33 are Between the door 1 and the fluid holding portion 4 of the door closer 2, a ventilation portion 5 is formed which faces the concave portion 3 on the back surface of the door closer and communicates vertically. In addition, the hatching part in FIG. 14 shows the attachment location of a cover.

Similarly to the fourth embodiment, the door of the present embodiment also has a concave portion 3 on the back side of the door closer 2 from the notch 8g of the lower lateral wall 33, as shown by arrows 22 in FIGS. The air is taken into the door closer 2 and the heat is taken away from the recess 3 through the notches 8c and 8e of the upper side wall 32, thereby radiating heat from the door closer 2, and the fluid in the door closer 2 is overheated at the time of a fire. And the fluid can be prevented from leaking from the door closer 2. As shown in FIG. 14 (b), the lower horizontal wall 33 has a notch 8g at the center open, and the upper horizontal wall 32 has notches 8c and 8e at both left and right ends. Since the air 22 that has entered from the center of the gas flows substantially horizontally in the direction of both ends in the recess 3 and is discharged from both ends of the upper lateral wall 32, the entire area in the recess 3 can be efficiently radiated. Further, since the areas of the notches 8c and 8e opened on the upper horizontal wall 32 are larger than the area of the notched 8g opened on the lower horizontal wall 33, the air flow to the recess 3 is promoted, and the heat radiation efficiency is improved. The lower horizontal wall 33 has only a central cutout 8g, and the cutouts 8f and 8h at both ends are closed by covers 34d and 34e, so that the design is good.
Further, since the notches 8c, 8d, 8e, 8f, 8g, and 8h are provided at the same position in the upper horizontal wall 32 and the lower horizontal wall 33, the door closer 2 is turned upside down, and the mounting positions of the covers 34c, 34d, and 34e are changed. By changing it, the door 1 can be opened both right and left.

  16 and 17 show a sixth embodiment of the door of the present invention. As shown in FIG. 16, in the door closer 2, a notch 8 i is formed in the upper horizontal wall 32 adjacent to the door 1 over substantially the entire left and right direction, and the lower horizontal wall 33 is adjacent to the door 1 at both left and right ends. Notches 8j and 8k are formed, and the recess 3 on the back surface of the door closer is provided between the door 1 and the fluid holding portion 4 of the door closer 2 by the notches 8i, 8j and 8k in the upper and lower lateral walls 32 and 33. The ventilation part 5 which faced and communicated up and down is formed.

  According to the present embodiment, as in the fourth and fifth embodiments, as shown by arrows 22 in FIGS. 16 and 17, the air that has risen in the event of a fire is not removed from the notches 8 j and 8 k of the lower lateral wall 33. The air flows into the concave portion 3 on the back side, and air takes heat from the door closer 2 and is discharged out of the concave portion 3 through the notch 8i in the upper horizontal wall 32, thereby radiating heat from the door closer 2, and in the door closer 2 in the event of a fire. The overheating of the fluid can be suppressed and the fluid can be prevented from leaking from the door closer 2. Since the area of the notch 8i in the upper horizontal wall 32 is larger than the area of the notches 8j and 8k in the lower horizontal wall 33, the air flow to the recess 3 on the back of the door closer is promoted, and the upper horizontal wall 32 has a lateral direction. Since the notches 8i are formed over substantially the entire area, heat can be radiated from the entire area in the recess 3, so that the heat dissipation performance is high. In addition, since the notches 8j and 8k are provided on the left and right ends of the lower horizontal wall 33, the notches 8j and 8k are not conspicuous and the design is good.

  18 and 19 show a seventh embodiment of the door of the present invention. The door closer 2 is provided with mounting ears 18 projecting on both the left and right sides, and the rear surface is in contact with the indoor side surface of the door 1 and the ears 18 are fixed to the back plate (not shown) inside the door with screws 20. ing. The recess 3 on the back surface of the door closer is divided into left and right by a bulge 36 around the rotary shaft 13. On the upper horizontal wall 32 of the door closer 2, notches 8 l and 8 m are formed adjacent to the door 1 at two positions on both sides of the rotary shaft 13, and the notches 8 n are similarly formed on both sides of the rotary shaft 13 in the lower horizontal wall 33. , 8o are formed adjacent to the door 1. Covers 34f and 34g are attached to the notches 8l and 8m of the upper horizontal wall 32, and notches 35d and 35e are formed adjacent to the door 1 at positions close to the left and right ends of the covers 34f and 34g. . Covers 34h and 34i are also attached to the notches 8n and 8o of the lower horizontal wall 33, and the notches 35f and 35g are adjacent to the door 1 at positions near the center of the left and right directions close to the rotation shaft 13. Is formed. Then, the door closer is provided between the door 1 and the fluid holding portion 4 of the door closer 2 by the notches 35d and 35e of the covers 34f and 34g of the upper lateral wall 32 and the notches 35f and 35g of the covers 34h and 34i of the lower lateral wall 33. A ventilation portion 5 is formed so as to face the concave portion 3 on the back and communicate with the top and bottom.

According to this embodiment, even when the recess 3 on the back side of the door closer is divided into left and right, as shown by arrows 22 in FIGS. 18 and 19, the cover 34 f, 34 g, 34 h, 34 i is cut into each recess 3. Since air circulates through the notches 35d, 35e, 35f, and 35g, the door closer 2 is urged to dissipate heat in the event of a fire in the same manner as in the embodiments described so far, and overheating of the fluid in the door closer 2 is suppressed, so that the door closer 2 Can prevent fluid from leaking out. Cutouts 35f and 35g are formed on the covers 34h and 34i of the lower horizontal wall 33 near the center in the left-right direction, and cutouts 35d and 35e are formed on the covers 34f and 34g on the upper horizontal wall 32 near the ends in the left-right direction. As shown in FIG. 18B, the air 22 that has entered from the center of the lower horizontal wall 33 flows substantially horizontally in the direction of both ends in the recess 3 and is discharged from both ends of the upper horizontal wall 32 as shown in FIG. Therefore, the entire area inside the recess 3 can be efficiently radiated. Since the covers 34f, 34g, 34h, and 34i are attached to the notches 8l, 8m, 8n, and 8o of the upper lateral wall 32 and the lower lateral wall 33, it is possible to minimize the deterioration in design properties due to the notches.
Further, since the door closer 2 has notches 81, 8m, 8n, and 8o formed in the upper horizontal wall 32 and the lower horizontal wall 33 in the same shape, the door closer 2 is turned upside down and the upper and lower covers 34f, 34g, 34h, Opening can be applied to both the left and right simply by changing 34i.

  20 and 21 show an eighth embodiment of the door of the present invention. As in the seventh embodiment, the door closer 2 has mounting ears 18 projecting on both the left and right sides, the back is in contact with the interior side of the door 1, and the ears 18 are screwed 20 to the back plate inside the door 1. The recess 3 on the back side of the door closer is divided into left and right by a bulge 36 around the rotary shaft 13. Notches 8p, 8q, 8r, and 8s are formed on the upper horizontal wall 32 of the door closer 2 adjacent to the door 1 in four places, two places near the both ends in the left-right direction and two places on both sides of the rotary shaft 13. Similarly, notches 8t, 8u, 8v, and 8w are formed in the lower horizontal wall 33 at four locations. Of the four notches 8p, 8q, 8r and 8s on the upper horizontal wall 32, the two notches 8q and 8r closer to the center are closed by attaching covers 34j and 34k. Of the notches 8t, 8u, 8v, and 8w, the two notches 8t and 8w near the both ends are closed by attaching covers 34l and 34m, and the remaining two notches on the upper horizontal wall 32 are closed. By the two notches 8u and 8v of 8p and 8s and the lower horizontal wall 33, the ventilation portion 5 which communicates vertically between the door 1 and the fluid holding portion 4 of the door closer 2 so as to face the concave portion 3 on the back of the door closer. Forming.

Similarly to the seventh embodiment, the door of this embodiment also has a lower horizontal wall in each recess 3 as shown by arrows 22 in FIGS. Since air circulates through the notches 8u, 8v, 8p, and 8s of the upper side wall 32 and the upper side wall 32, heat release of the door closer 2 is promoted in the event of a fire as in the above-described embodiments, and the fluid in the door closer 2 is overheated. It is possible to prevent fluid from leaking from the door closer 2. In the lower horizontal wall 33, notches 8u, 8v near the center in the left-right direction are opened, and notches 8p, 8s near the end in the left-right direction are opened in the upper horizontal wall 32, so that FIG. As shown in FIG. 3, since the air 22 that has entered from near the center of the lower horizontal wall 33 flows substantially horizontally in the direction of both ends in the recess 3 and is discharged from both ends of the upper horizontal wall 32, the entire area in the recess 3 can be efficiently radiated. . Since the covers 34j, 34k, 34l, and 34m are attached to the notches 8q, 8r, 8t, and 8w of the upper lateral wall 32 and the lower lateral wall 33, it is possible to minimize the deterioration in design properties due to the notches.
Further, since the door closer 2 has notches 8p, 8q, 8r, 8s, 8t, 8u, 8v, and 8w formed at the same position on the upper horizontal wall 32 and the lower horizontal wall 33, the door closer 2 is turned upside down to cover 34j. , 34k, 34l, and 34m can be changed to accommodate both the left and right sides.

As described above, the door of the present invention is provided with the ventilation portion 5 between the door 1 and the fluid holding portion 4 of the door closer 2 so that air can flow through the recess 3 on the back side of the door closer 2. Thus, since air flows through the recess 3 on the back side of the door closer 2 during a fire and the heat release of the door closer 2 is promoted, overheating of the fluid in the door closer 2 during a fire can be suppressed. As a result, it is possible to prevent the fluid from expanding and leaking from the door closer 2, and the fireproof performance is improved.
According to the first to third embodiments in which the vent portion 5 is formed by attaching the door closer 2 to the door 1 via the spacer 6 or the mounting bracket 7 with an interval 21, the door closer 2 is not specially crafted. The ventilation part 5 can be formed easily. Further, it is possible to prevent heat from being transmitted from the door 1 to the door closer 2. Furthermore, the door closer 2 can be used in combination with a fireproof door and a non-fireproof door.
According to the fourth to eighth embodiments in which the ventilation portion 5 is formed by forming the notches 8a, 8b, ..., 8w and the notches 35a, 35b, ..., 35g in the upper horizontal wall 32 and the lower horizontal wall 33 of the door closer 2. For example, the ventilation portion 5 can be formed simply by bringing the door closer 2 into contact with the indoor side surface of the door 1 and mounting it normally.

  The present invention is not limited to the embodiments described above. The material and shape of the spacing member (spacer 6, mounting bracket 7) can be changed as appropriate. The positions and sizes of the notches 8a, 8b,..., 8w and the notches 35a, 35b,..., 35g in the upper and lower side walls 32 and 33 of the door closer 2 can be changed as appropriate. For example, a notch may be formed in the upper horizontal wall 32 and the lower horizontal wall 33 of the door closer 2 only near the center in the left-right direction close to the rotation shaft 13. The fluid is particularly likely to leak around the rotary shaft 13. However, if a notch is provided in the vicinity of the center of the upper horizontal wall 32 and the lower horizontal wall 33 as described above, the heat is efficiently radiated from the periphery of the rotary shaft 13 and the fluid leaks. It can be suppressed. Moreover, although the thing of the embodiment provided the notch in both the upper horizontal wall 32 and the lower horizontal wall 33, you may provide a notch only in the upper horizontal wall 32, and even in that case, the hot air in the recessed part 3 on the back of the door closer It is discharged out of the recess 3 through the notch in the upper horizontal wall 32, and air flows into the recess 3 through the notch in the upper horizontal wall 32. can get. In addition, when providing a notch only in the upper horizontal wall 32, it is preferable that the notch is provided in the range of at least half or more of the lateral width of the door closer. The structure of the door closer 2 itself is arbitrary.

DESCRIPTION OF SYMBOLS 1 Door 2 Door closer 3 Recessed part 4 Fluid holding part 5 Ventilation part 6 Spacer (space holding member)
7 Mounting bracket (Spacing member)
8a, 8b, 8c, 8d, 8e, 8f, 8g, 8h, 8i, 8j, 8k, 8l, 8m, 8n, 8o, 8p, 8q, 8r, 8s, 8t, 8u, 8v, 8w Notch 35a, 35b , 35c, 35d, 35e, 35f, 35g Cover notch (notch)

Claims (4)

The door includes a door and a door closer attached to the door, and a ventilation portion is provided between the door and the fluid holding portion of the door closer so that air can flow through the recess on the back side of the door closer. A door formed by providing a notch in a portion adjacent to the door of the door, and having a cover attached to the notch so as to allow a vent to communicate in the event of a fire . A door and a door closer attached to the door are provided , and a ventilation portion is provided between the door and the fluid holding portion of the door closer so that air can flow in a recess on the back side of the door closer. Is formed by providing a gap holding member between the door closer and the door closer, and the gap holding member has a comb-shaped cross section having a large number of fins in the vertical direction, and the tips of the fins are arranged facing the door closer. A door characterized by that. The door includes a door and a door closer attached to the door, and a ventilation portion is provided between the door and the fluid holding portion of the door closer so that air can flow through the recess on the back side of the door closer. A door formed by providing a notch in a portion adjacent to the upper wall and the lower wall door, wherein the area of the upper wall notch is larger than the area of the lower wall notch . The door includes a door and a door closer attached to the door, and a ventilation portion is provided between the door and the fluid holding portion of the door closer so that air can flow through the recess on the back side of the door closer. It is formed by providing notches in the part adjacent to the upper and lower wall doors, the upper wall notches are provided at the left and right ends, and the lower wall notch is provided near the center. A door characterized by that.

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