Doors designed to withstand heavy object collisions

Abstract

To provide a door against heavy object collision capable of suppressing damage on an open / close mechanism of the door as being able to absorb collision energy through elastic deformation of a buffer member when a heavy object collides on a door body.SOLUTION: A door 10 is provided with: a door body 20 allowing an opening Pa facing the outdoor of a building to be opened / closed; a motor M displacing the door body 20 during a normal situation; and a handle 55 displacing the door body 20 during an emergency situation. The motor M or the handle 55 displaces the door body 20 between a close position closing the opening Pa and an open position slidably offset from the close position. The door body 20 is provided with a plate member (door panel 22) with a thickness 40 mm or more, a gap is formed between the door body 20 and the building, and an elastic deformable buffer member is provided in a thickness direction of the door body 20.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] This disclosure relates to a heavy object collision prevention door that is provided with measures to protect against collisions with heavy objects such as flying objects. [Background technology]

[0002] Patent Document 1 discloses a technique for absorbing deformation of a door due to an earthquake or the like by providing an elastic body in the door body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 10-184218 Summary of the Invention [Problem to be solved by the invention]

[0004] In the technology described in Patent Document 1, if a heavy object such as steel material hits the door body due to a tornado or the like, the door opening / closing mechanism may be damaged. In particular, in important structures such as power plants and public facilities, there is a high need to protect the door opening / closing mechanism. Therefore, an object of the present disclosure is to solve the above-mentioned problems. [Means for solving the problem]

[0005] The present invention First viewpointThe heavy object collision prevention door according to the present invention comprises a door body that can open and close an opening facing the outside of a building, a first drive unit that displaces the door body under normal circumstances, and a second drive unit that displaces the door body under emergency circumstances, wherein the first drive unit or the second drive unit displaces the door body between a closed position that closes the opening and an open position that is slid from the closed position, the door body comprises a plate material having a thickness of 40 mm or more, a gap is formed between the door body and the building, a buffer member that is elastically deformable in the thickness direction of the door body is provided, and the door body has one end that is supported by the door body and a second drive unit that displaces the door body. and another end portion along which the opening is guided, the buffer member is provided on both the side of the one end portion and the side of the other end portion, the door body has the one end portion provided on an upper side and the other end portion provided on a lower side, a support rail provided above the opening, a support roller provided at the one end portion, and the support roller supported by the support rail so as to be able to roll, the door body comprises the support roller, a connecting member supported by the support roller, and a door panel supported by the connecting member so as to be able to displace in the thickness direction of the door body, and the buffer member is provided between the door panel and the connecting member.

[0006] the above First viewpoint According to the door for preventing collisions with heavy objects, when a heavy object collides with the door body, the buffer member at one end deforms and absorbs the energy of the collision, thereby preventing damage to the support rails and support rollers that form the door opening and closing mechanism.

[0007] The present invention Second perspectiveThe heavy object collision prevention door according to the present invention comprises a door body that can open and close an opening facing the outside of a building, a first drive unit that displaces the door body under normal circumstances, and a second drive unit that displaces the door body under emergency circumstances, wherein the first drive unit or the second drive unit displaces the door body between a closed position that closes the opening and an open position that is slid from the closed position, a gap is formed between the door body and the building, a buffer member that is elastically deformable in the thickness direction of the door body is provided on the door body, and the door body has one end that is supported by the door body and a guide for the displacement of the door body. the other end being supported by a support rail provided above the opening, and the other end being supported by a support roller provided at the one end, the buffer member being provided on both the side of the one end and the side of the other end, the door body having the one end provided on an upper side and the other end provided on a lower side, a support rail provided above the opening, a support roller provided at the one end, the support roller being supported by the support rail so as to be able to roll, the door body having the support roller, a connecting member supported by the support roller, and a door panel supported by the connecting member so as to be able to displace in the thickness direction of the door body, and the buffer member being provided between the door panel and the connecting member.

[0008] the above Second perspective According to the door for preventing collisions with heavy objects, when a heavy object collides with the door body, the buffer member at one end deforms and absorbs the energy of the collision, thereby preventing damage to the support rails and support rollers that form the door opening and closing mechanism.

[0009] The present invention Third perspectiveThe heavy object collision prevention door according to the present invention comprises a door body that can open and close an opening facing the outside of a building, a first drive unit that displaces the door body under normal circumstances, and a second drive unit that displaces the door body under emergency circumstances, wherein the first drive unit or the second drive unit displaces the door body between a closed position that closes the opening and an open position that is slid from the closed position, the door body comprises a plate material having a thickness of 40 mm or more, a gap is formed between the door body and the building, and a buffer member that is elastically deformable in the thickness direction of the door body is provided, and the door body has one end where the door body is supported and a second drive unit that displaces the door body under normal circumstances. and another end portion at which displacement of the door body is guided, the buffer member is provided on both the side of the one end portion and the side of the other end portion, the door body has one end portion provided on an upper side and the other end portion provided on a lower side, a support rail is provided above the opening, a support roller is provided at the one end portion, the support roller is supported so as to be able to roll on the support rail, the other end portion is guided by a guide roller provided on the building, the guide roller is displaceable in the thickness direction of the door body relative to the building, and the buffer member is provided between the guide roller and the building.

[0010] the above Third perspective According to the heavy object collision prevention door, when a heavy object collides with the door body, the buffer member on the other end side deforms and absorbs the energy of the collision, thereby preventing damage to the guide roller.

[0011] The present invention Fourth viewpointThe heavy object collision prevention door according to the present invention comprises a door body that can open and close an opening facing the outside of a building, a first drive unit that displaces the door body in normal times, and a second drive unit that displaces the door body in an emergency, the first drive unit or the second drive unit displaces the door body between a closed position that closes the opening and an open position that is slid from the closed position, a gap is formed between the door body and the building, a buffer member that is elastically deformable in a thickness direction of the door body is provided on the door body, and the door body has one end that is supported by the door body and a second drive unit that is slid from the door body to an open position that is slid from the closed position to an open position that is slid from the closed position to an open position that is slid from the open ... and the other end portion that is guided by the one end portion, the buffer member is provided on both the side of the one end portion and the side of the other end portion, the door body has the one end portion provided on the upper side and the other end portion provided on the lower side, a support rail is provided above the opening, a support roller is provided at the one end portion, the support roller is supported so as to be able to roll on the support rail, the other end portion is guided by a guide roller provided on the building, the guide roller is displaceable in the thickness direction of the door body relative to the building, and the buffer member is provided between the guide roller and the building.

[0012] the above Fourth viewpoint According to the heavy object collision prevention door, when a heavy object collides with the door body, the buffer member on the other end side deforms and absorbs the energy of the collision, thereby preventing damage to the guide roller. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 2 is a front view showing the heavy object collision prevention door in a closed state. [Figure 2] FIG. 2 is a front view showing the heavy object collision prevention door in an open state. [Figure 3] A cross-sectional view taken along line A1-A1 in Figure 1. [Figure 4] Cross-sectional view taken along line A2-A2 in Figure 1. [Figure 5] FIG. [Figure 6] Cross-sectional view of line BB in Figure 5. [Figure 7] FIG. [Figure 8] 8(a) and 8(b) are cross-sectional views taken along the line C1-C1 in FIG. 7 in a normal state and when the door is displaced, respectively. [Figure 9] Cross-sectional view taken along line C2-C2 in Figure 7. [Figure 10] FIG. [Figure 11] 10(a) is a front view showing the connection portion between the handle support portion and the door body, and FIG. 10(b) is a cross-sectional view taken along line DD in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0014] [Overall structure of Door 10] The overall configuration of a door 10, which is one embodiment of a door for preventing collisions with heavy objects according to the present invention, will be described below with reference to Figures 1 to 4. In this embodiment, the direction of the door 10 is defined as viewed from the front as shown in Figure 1. That is, the right side in Figure 1 is the right side of the door 10, and the front side of the paper in Figure 1 is the front of the door 10. As shown in Figures 1 to 4, the door 10 according to this embodiment is installed on a wall W erected on a floor F. The wall W is installed in a part of the building facing the outdoors.

[0015] As shown in Figures 1 to 4, a rectangular wall opening Wa is formed in the wall W. Frames P1 to P6, each made of H-shaped steel, are assembled to the wall opening Wa. Specifically, as shown in Figures 1 and 2, a first frame P1 is erected on the inner right side of the wall opening Wa, a second frame P2 is erected on the inner left side, and a third frame P3 is erected in the center in the left-right direction. A fourth frame P4 is disposed between the second frame P2 and the third frame P3, and a fifth frame P5 is disposed between the first frame P1 and the third frame P3, each along the floor surface. A sixth frame P6 is disposed horizontally above the first frame P1, second frame P2, and third frame P3.

[0016] In the opening formed by the first frame P1, the third frame P3, the fifth frame P5, and the sixth frame P6, a right edge member E1 is provided at the inner end (left end) of the first frame P1, and an upper edge member E2 is provided at the inner end (lower end) of the sixth frame P6. The right edge member E1, the upper edge member E2, the right end of the third frame P3, and the upper end of the fifth frame P5 form an opening Pa that is opened and closed by the door 10 according to this embodiment. Meanwhile, the opening formed by the second frame P2, the third frame P3, the fourth frame P4, and the sixth frame P6 is closed by assembling a closure plate Cp to the front side.

[0017] A building-side pressure-receiving member 14 is provided around the opening Pa on the front surfaces of the right edge member E1, upper edge member E2, third frame body P3, and fifth frame body P5. The building-side pressure-receiving member 14 is a member that the door body 20 abuts against when the door body 20 is displaced toward the building due to an external force, and is made of an elastic material such as resin. A high-density brush 16 that extends forward is attached along the inner circumferential surface of the building-side pressure-receiving member 14 (see Figures 6 and 8).

[0018] Three closed-side guide portions 60 are provided on the front surface of the fifth frame P5. A closed-side locking member 15a with a locking hole formed in the vertical direction is provided near the closed-side guide portions 60 provided in the center of the fifth frame P5. Two open-side guide portions 60A are provided on the front surface of the fourth frame P4. An open-side locking member 15b with a locking hole formed in the vertical direction is provided in the center of the front surface of the fourth frame P4.

[0019] A rail support member 11 is provided above the wall opening Wa on the front surface of the wall body W, along the upper edge of the wall opening Wa. A support rail 12 that supports the door main body 20 is fixed to the underside of the rail support member 11. As shown in FIG. 2 , the support rail 12 is provided above the opening Pa. A guide rail 13 is fixed to the underside of the support rail 12. A closing stopper 12a that restricts displacement of the door main body 20 to the right is provided on the right end of the support rail 12. Similarly, an opening stopper 12b that restricts displacement of the door main body 20 to the left is provided on the left end of the support rail 12.

[0020] In the door 10 according to this embodiment, the door body 20 slides left and right along the support rail 12 to open and close the opening Pa. In this embodiment, the state in FIG. 1 in which the door body 20 is positioned in front of the opening Pa is referred to as the "closed state," and the position of the door body 20 in the closed state is referred to as the "closed position." In addition, the state in FIG. 2 in which the door body 20 is positioned in front of the closure plate Cp is referred to as the "open state," and the position of the door body 20 in the open state is referred to as the "open position."

[0021] As shown in FIGS. 1 and 2, the door 10 according to this embodiment is provided with a locking device 72 for fixing the door body 20 in the closed or open position. The locking device 72 includes a rod 73 that extends downward and is movable up and down. As shown in FIG. 1, when the door body 20 is in the closed position, the rod 73 extends downward, whereby the rod 73 is inserted into the locking hole of the closing-side locking member 15a, and the door body 20 is fixed in the closed position. On the other hand, as shown in FIG. 2, when the door body 20 is in the open position, the rod 73 extends downward, whereby the rod 73 is inserted into the locking hole of the opening-side locking member 15b, and the door body 20 is fixed in the open position. When the rod 73 is retracted upward, the door body 20 is freely displaceable horizontally along the support rail 12.

[0022] The door 10 is provided with an emergency unlocking device 71 that displaces the rod 73 upward to release the lock when the rod 73 is inserted into the closed-side locking member 15a or the open-side locking member 15b and fixed in position. The emergency unlocking device 71 is electrically connected to the locking device 72. When the user of the door 10 operates the emergency unlocking device 71, the rod 73 is retracted upward and the door body 20 is unlocked.

[0023] The door body 20 is formed of an assembly of metal members and is shaped like a plate with a thickness in the front-to-rear direction. Specifically, the door body 20 is formed by assembling door frames 21, each of which is made of a plurality of H-shaped steel beams, in a rectangular shape. A door panel 22, which is a plate material, is provided on the front side of the assembled door frames 21, and a covering panel 23 is provided on the rear side. In this embodiment, a metal plate material with a thickness of 40 mm or more is used for the door panel 22. In the door 10, this door panel 22 is configured to absorb impact when a heavy object collides with the door 10 from outside the building. The door panel 22 may be made of, for example, solid iron or a composite material with equivalent strength. The upper end of the door body 20 is supported by the support rail 12 via a driven-side door support part 30 and a driving-side door support part 40.

[0024] A door-side pressure receiving member 24 is provided on the rear surface of the door body 20 in a position facing the building-side pressure receiving member 14 when the door body 20 is in the closed position (see FIGS. 6 and 8). The door-side pressure receiving member 24 is made of an elastic material such as resin. As shown in FIGS. 6 and 8, the tip of a high-density brush 16 extending from the building-side pressure receiving member 14 abuts against the door-side pressure receiving member 24. That is, a gap (20 mm in this embodiment) is formed between the door body 20 and the building (frame P provided on the wall W), and the high-density brush 16 is provided on the building-side pressure receiving member 14 to close this gap. The door-side pressure receiving member 24 abuts against the building-side pressure receiving member 14 when the door body 20 is displaced toward the building due to an external force.

[0025] Additionally, three upper guide rollers 25 are provided on the upper part of the door body 20. The upper guide rollers 25 guide the displacement of the door body 20 by sandwiching the guide rail 13 from the front and rear directions.

[0026] [Following side door support portion 30] Next, the configuration of the driven-side door support part 30 will be described with reference to Figures 5 and 6. The driven-side door support part 30 includes support rollers 33, 33, and a front-side first support plate 31 and a rear-side second support plate 32, which are connecting members supported by the support rollers 33, 33. Specifically, as shown in Figure 6, the support rollers 33, 33 rotatably provided on the first support plate 31 and the second support plate 32 respectively, sandwich the support rail 12 from the front and rear directions. The support rollers 33, 33 roll on the support rail 12, causing the driven-side door support part 30 to slide and displace along the support rail 12.

[0027] 5 and 6, a cylindrical member 34 is interposed between the first support plate 31 and the second support plate 32. A first shaft S1 is inserted through the first support plate 31, the cylindrical member 34, and the second support plate 32, and both ends of the first shaft S1 are tightened with nuts. In this way, the relative distance between the first support plate 31 and the second support plate 32 is determined by the cylindrical member 34.

[0028] 5 and 6, a second shaft S2 is also inserted through the first support plate 31 and the second support plate 32. As shown in Fig. 6, a first spacer 35, the door panel 22, the door frame 21, a compression spring 37 as a buffer member, and a second spacer 36 are arranged between the first support plate 31 and the second support plate 32 in this order from the front, and the second shaft S2 is inserted through each of them. In this way, the compression spring 37 is arranged between the door panel 22 and the second support plate 32 so as to be elastically deformable in the front-to-rear direction, which is the thickness direction of the door body 20. The door panel 22 and the door frame 21 are displaceable in the front-to-rear direction along the second shaft S2, and are urged forward (towards the first support plate 31) by the elastic force of the compression spring 37.

[0029] 5 and 6, a first support block 38 is supported between the first support plate 31 and the second support plate 32. The first support block 38 is fixed to the second support block 39 with bolts. The first support block 38 and the second support block 39 support the door frame 21 by sandwiching the plate-shaped portion of the door frame 21 between them. In other words, the door frame 21 is supported by the driven-side door support part 30 via the first support block 38 and the second support block 39.

[0030] [Driving side door support portion 40] Next, the configuration of the driving-side door support part 40 will be described with reference to Figures 1, 2, and 4. The driving-side door support part 40 has substantially the same configuration as the driven-side door support part 30. Specifically, the driving-side door support part 40 includes support rollers 43, and a front-side first support plate 41 and a rear-side second support plate 42, which are connecting members supported by the support rollers 43. In the driving-side door support part 40, the first support plate 41 extends downward, and its lower end is located in front of the lower part of the door panel 22. A driving unit case 50 formed in the same shape as the first support plate 41 in a front view is provided in front of the first support plate 41.

[0031] As with the driven-side door support part 30, the support rail 12 is sandwiched from the front and rear directions by support rollers 43, 43 rotatably provided on each of the first support plate 41 and the second support plate 42. As the support rollers 43, 43 roll on the support rail 12, the driving-side door support part 40 slides and displaces along the support rail 12.

[0032] 4, a cylindrical member 44 is interposed between the first support plate 41 and the second support plate 42, and the relative distance between the first support plate 41 and the second support plate 42 is determined by the cylindrical member 44. As shown in Fig. 4, a first spacer 45, the door panel 22, the door frame 21, a compression spring 47 which is a buffer member, and a second spacer 46 are arranged between the first support plate 41 and the second support plate 42 in this order from the front.

[0033] In this way, the compression spring 47 is disposed between the door panel 22 and the second support plate 42 so as to be elastically deformable in the front-to-rear direction, which is the thickness direction of the door body 20. The door panel 22 and the door frame 21 are displaceable in the front-to-rear direction along the shaft, and are urged forward (towards the first support plate 31) by the elastic force of the compression spring 47. In the driving-side door support part 40, as in the driven-side door support part 30, the door frame 21 is supported via a first support block and a second support block.

[0034] The driving-side door support part 40 has substantially the same configuration as the driven-side door support part 30, and in addition, it is equipped with a drive part that drives the door main body 20. Specifically, the driving-side door support part 40 is equipped with a motor M, which is a first drive part that displaces the door main body 20 under normal circumstances, and a handle 55, which is a second drive part that displaces the door main body 20 in an emergency.

[0035] The motor M is mounted to the first support plate 41 at a vertical midpoint. A drive sprocket 51 is provided on the drive shaft of the motor M. Meanwhile, a first sprocket 53 is connected to the support rollers 43·43 via a drive shaft 54. A first chain 52 is wound around the drive sprocket 51 and the first sprocket 53. As a result, when the motor M is driven, the support rollers 43·43 rotate, and the door body 20 is displaced. In this way, the motor M functions as a first drive unit that normally displaces the door body 20 between the closed position and the open position.

[0036] The handle 55 is attached to the lower part of the first support plate 41 and extends forward from the drive unit case 50. As shown in FIG. 10 , a handle sprocket 55a is provided on the handle 55. A second sprocket 57 is fixed to the drive shaft 54. A second chain 56 is wound around the handle sprocket 55a and the second sprocket 57. As a result, when a user of the door 10 rotates the handle 55, the support rollers 43 rotate and the door body 20 is displaced. In this way, the handle 55 functions as a second drive unit that displaces the door body 20 between the closed position and the open position in an emergency such as a power outage.

[0037] As described above, in the door 10 according to this embodiment, the driven-side door support portion 30 and the drive-side door support portion 40 are provided with the compression springs 37, 47 as buffer members that are elastically deformable in the thickness direction of the door body 20. Therefore, when a heavy object such as steel material collides with the door panel 22 of the door body 20 due to a tornado or the like and the door panel 22 and the door frame 21 are displaced backward as shown by the arrow in Figure 6, the door panel 22 and the door frame 21 press against the compression springs 37, 47, causing them to compress and deform.

[0038] At this time, the compression springs 37, 47 absorb the energy of the collision by elastically deforming, preventing the large energy at the time of the collision from being transmitted to the support rail 12, support rollers 33, 43, etc., which are the opening and closing mechanism of the door 10, and suppressing damage to the support rail 12, support rollers 33, 43, etc. In particular, in important structures such as power plants and public facilities, it is preferable to use a configuration with a buffer member like the door 10, from the perspective that there is a high need to protect the opening and closing mechanism.

[0039] [Obstruction side guide portion 60] Next, the configuration of the blocked side guide section 60 will be described with reference to Figures 7 to 9. As shown in Figures 1 and 2, the blocked side guide section 60 is provided at three locations on the front surface of the fifth frame body P5, below the building side pressure-receiving member 14. As shown in Figures 7 to 9, the blocked side guide section 60 is made up of a stay 61, a roller case 62, a support rod 63, a fixed block 64, a receiving member 65, a compression spring 66 as a buffer member, a compression member 67, a slider 68, and a guide roller 69.

[0040] In the closed-side guide portion 60, a stay 61 is fixed to and extends forward from the front surface of the fifth frame body P5. A hollow roller case 62 is fixed to and extends forward from the front surface of the stay 61. Two support rods 63 are fixed inside the roller case 62 along the front-rear direction, which is the direction in which the roller case 62 extends.

[0041] In addition to the support rod 63, the roller case 62 accommodates a fixed block 64, a receiving member 65, a compression spring 66, a compression member 67, and a slider 68, with the support rod 63 inserted therethrough. The fixed block 64 is fixed to the roller case 62 so as not to be displaceable. The compression spring 66 is interposed between the receiving member 65, which abuts against the fixed block 64, and the compression member 67. The compression member 67 is fixed to the tip of the slider 68.

[0042] Two guide rollers 69 extending upward from the top surface of the roller case 62 are fixed to the slider 68. The guide rollers 69 are inserted into openings in the door frame 21 at the lower end of the door main body 20. The guide rollers 69 guide the horizontal displacement of the door main body 20. That is, in the door 10 according to this embodiment, the guide rollers 69 are supported at the upper end of the door main body 20, and the displacement is guided at the lower end.

[0043] By configuring the closed-side guide portion 60 as described above, the compression member 67, slider 68, and guide roller 69 are displaceable in the front-rear direction along the support rod 63, and are urged forward by the elastic force of the compression spring 66. In this way, the guide roller 69 is displaceable in the thickness direction of the door body 20 relative to the building (fifth frame body P5).

[0044] As described above, in the door 10 according to this embodiment, the compression spring 66 is provided between the guide roller 69 and the building in the blocking side guide portion 60 as a buffer member that is elastically deformable in the thickness direction of the door body 20. Therefore, when a heavy object such as steel material collides with the door panel 22 of the door body 20 due to a tornado or the like, and the door panel 22 and the door frame 21 are displaced backward as shown by the arrow in Figure 8(a), the door panel 22 and the door frame 21 press the compression spring 66 via the guide roller 69, slider 68, and compression member 67, causing compression deformation.

[0045] At this time, the compression spring 66 elastically deforms to absorb the energy of the collision, preventing the large energy at the time of the collision from being transmitted to the wall W of the building in which the door 10 is installed, thereby suppressing damage to the building, etc. In particular, in important structures such as power plants and public facilities, it is preferable to use a configuration with a buffer member like the door 10, given the high need to protect the building.

[0046] Unlike the closed-side guide section 60, the open-side guide section 60A in this embodiment is configured to use fixed guide rollers to guide the horizontal displacement of the door body 20. However, like the closed-side guide section 60, the open-side guide section 60A can also be made variable by biasing the guide rollers 69 with compression springs 66.

[0047] [Handle 55 support structure] Next, the support structure of the handle 55 will be described with reference to Figures 10 and 11. As shown in Figures 1 and 10, the handle 55 is attached to the lower part of the first support plate 41. A compression member 81 formed in the shape of a hollow box is fixed to the part of the door panel 22 facing the lower end part of the first support plate 41.

[0048] A support pillar 82 is screwed into the lower part of the first support plate 41 from the front and inserted into the compression member 81. The rear end of the support pillar 82 abuts against the door panel 22. This support pillar 82 restricts the relative displacement of the first support plate 41 and the door panel 22 as they approach each other.

[0049] 10 and 11(b), a stopper 83 is fixed to the rear end of the support pillar 82. A compression spring 84, which is a buffer member, is interposed between the stopper 83 and the compression member 81. Therefore, as shown by the arrows in Fig. 10 and 11(b), when a heavy object such as steel material collides with the door panel 22 of the door main body 20 due to a tornado or the like and the door panel 22 is displaced as shown in Fig. 11(b), the door panel 22 and the door frame 21 press the compression spring 84 via the compression member 81, causing it to compress and deform.

[0050] At this time, the compression spring 84 can absorb the energy of the collision by elastically deforming. That is, damage to the support structure of the handle 55, such as the first support plate 41, due to the displacement of the door panel 22 can be suppressed.

[0051] [Door 10 Action] As described above, in the door 10 according to this embodiment, a gap is formed between the door body 20 and the building, and cushioning members (compression springs 37, 47, 66) that are elastically deformable in the thickness direction of the door body 20 are provided. As a result, when a heavy object collides with the door body 20, the cushioning members are elastically deformed to absorb the energy of the collision, thereby preventing damage to the opening and closing mechanism of the door 10, etc.

[0052] Furthermore, in the door 10 according to this embodiment, the compression springs 37 and 47, which are shock absorbing members, are provided on the door body 20. As a result, when a heavy object collides with the door body 20, the shock absorbing members are able to elastically deform and absorb the energy of the collision before the energy of the collision applied to the door body 20 is transmitted to the opening and closing mechanism of the door 10 (support rollers 33 and 43, support rail 12, etc.). This makes it possible to prevent damage to the opening and closing mechanism of the door 10.

[0053] Furthermore, in the door 10 according to this embodiment, the door body 20 has an upper end portion where the door body 20 is supported and a lower end portion where the displacement of the door body 20 is guided. Then, buffer members are provided on both the upper end side (compression springs 37 and 47) and the lower end side (compression spring 66). As a result, when a heavy object collides with the door body 20, the buffer members provided on the support end side and the guide end side of the door body 20 are elastically deformed to absorb the energy of the collision, thereby further suppressing damage to the opening and closing mechanism of the door 10.

[0054] Furthermore, the door body 20 of the door 10 according to this embodiment has a support-side end provided on the upper side and a guide-side end provided on the lower side. Furthermore, a support rail 12 is provided above the opening Pa, and support rollers 33 and 43 are provided at the upper end of the door body 20, and the support rollers 33 and 43 are supported by the support rail 12 so that they can roll. As a result, when a heavy object collides with the door body 20, the buffer members (compression springs 37 and 47) at the upper end deform to absorb the energy of the collision, thereby preventing damage to the support rail 12 and support rollers 33 and 43, which are the opening and closing mechanism of the door 10.

[0055] Furthermore, in the door 10 according to this embodiment, the compression springs 37, 47 are arranged between the door panel 22 and the second support plates 32, 42 so as to be elastically deformable in the front-to-rear direction, which is the thickness direction of the door body 20. As a result, when a heavy object collides with the door body 20, the compression springs 37, 47 deform in the thickness direction of the door body 20 to absorb the energy of the collision, thereby preventing damage to the support rail 12 and support rollers 33, 43, which are the opening and closing mechanism of the door 10.

[0056] Furthermore, in the door 10 according to this embodiment, the lower end of the door body 20 is guided by a guide roller 69 provided on the building. The guide roller 69 is displaceable in the thickness direction of the door body 20 relative to the building. The compression spring 66 is provided between the guide roller 69 and the building. As a result, when a heavy object collides with the door body 20, the compression spring 66 deforms on the side of the lower end of the door body 20 to absorb the energy of the collision, thereby preventing damage to the guide roller 69.

[0057] Furthermore, in the door 10 according to this embodiment, the buffer member is made up of a spring, which allows the buffer member to be provided with a simple structure.

[0058] [Variations] The above embodiment can be modified as appropriate as shown in the following modifications. Each modification may be applied in combination with other modifications as long as no contradiction occurs.

[0059] The door 10 according to this embodiment is configured to open and close by sliding the door body 20 left and right at the opening Pa formed in the wall body W, but the heavy object collision prevention door according to the present invention is not limited to this embodiment. That is, the opening Pa opened in the wall body W can also be configured to be opened and closed by the door body that displaces up and down. Also, an opening opened in a horizontal plane can be configured as a hatch type that is opened and closed by the door body that displaces horizontally or up and down.

[0060] Furthermore, from the viewpoint of absorbing the impact when a heavy object collides from outside the building, it is preferable that the thickness of the door panel 22 in the door body 20 be 40 mm or more as in this embodiment, but if a high-strength material is used for the door panel, it is also possible to configure the door panel with a thickness of less than 40 mm.

[0061] The door 10 according to this embodiment is configured so that the door body 20 slides along a support rail 12 provided above the opening Pa, but it is also possible to provide wheels at the bottom of the door body so that the door body slides along a rail provided below the opening. In this case, the lower side of the door body can be configured as the support end and the upper side as the guide end. It is also possible to displace the door body by displacing a hanging member such as a chain while the door body is suspended by the hanging member.

[0062] In the door for preventing collisions with heavy objects according to the present invention, the number and locations of the buffer members are not limited. That is, it is possible to configure the door 10 according to this embodiment so that one or more buffer members are provided only on the upper side or only on the lower side of the door body 20. It is also possible to configure the door 10 so that one or more buffer members are provided on either the left or right side or both sides of the door body 20.

[0063] The buffer members may be configured to be incorporated into the door body 20, like the compression springs 37 and 47 in this embodiment, or may be configured to be provided on the outside of the door body 20, like the compression spring 66 in this embodiment. The buffer members may also be provided between the door body 20 and another member that supports the door body 20 (the support portion (first support plate 41) of the handle 55 in this embodiment), like the compression spring 84 in this embodiment.

[0064] In the door 10 according to this embodiment, compression springs (compression springs 37, 47, 66) are used as the buffer members, but other springs such as tension springs, leaf springs, coil springs, etc. may also be used as the buffer members. Furthermore, mechanisms other than springs, such as hydraulic dampers and air dampers, may also be used as the buffer members.

[0065] In the door 10 according to this embodiment, the door body 20 employs the motor M as the first drive unit, but it is also possible to employ other configurations such as a hydraulic mechanism other than electric mechanism as the drive mechanism of the door body 20. Also, in the door 10, a chain is employed as the transmission mechanism for transmitting the drive force from the motor M and the handle 55 to the door body 20, but it is also possible to employ other power transmission mechanisms such as a gear mechanism or a belt mechanism.

[0066] In the door 10 according to this embodiment, frame members P1 to P6 and edge members E1 and E2 are used to form the opening Pa, but it is also possible to configure the wall opening Wa formed in the wall W to be opened and closed by the door main body 20. [Explanation of symbols]

[0067] 10 Doors (Doors for heavy object collision prevention) 11 rail support member 12 support rail 12a Close stopper 12b Open stopper 13 Guide rail 14 Building side pressure bearing member 15a Blocking side locking member 15b Opening side locking member 16 High Density Brushes 20 Door body 21 Door frame 22 Door panel 23 Covering panel 24 Door side pressure receiving member 25 Upper guide roller 30: driven-side door support portion 31: first support plate (connecting member) 32 Second support plate (connecting member) 33 Support roller 34 cylindrical member 35 first spacer 36 Second spacer 37 Compression spring (buffer member) 38 First Support Block 39 Second Support Block 40: Drive-side door support portion 41: First support plate (connecting member) 42 Second support plate (connecting member) 43 Support roller 44 Cylindrical member 45 First spacer 46 Second spacer 47 Compression spring (buffer material) 50 Drive unit case 51 Drive sprocket 52 First chain 53 First sprocket 54 Drive shaft 55 Handle (second drive unit) 55a handlebar sprocket 56 Second chain 57 Second sprocket 60 Blocked side guide part 60A Open side guide 61 Stay 62 Roller case 63 Support rod 64 Fixing block 65 Receiving member 66 Compression spring (buffer member) 67 compression member 68 slider 69 Guide roller 71 Emergency unlocking device 72 Locking device 73 Rod 81 compression member 82 support column 83 Stopper 84 Compression spring (buffer material) W Wall Wa Wall opening F Floor Pa Opening P Frame E Edge member Cp Closure plate S Shaft M motor (first drive unit)

Claims

1. The door system comprises a door body that can open and close an opening facing the outside of a building, a first drive unit that displaces the door body under normal circumstances, and a second drive unit that displaces the door body under emergency circumstances, The first drive unit or the second drive unit displaces the door body between a closed position that closes the opening and an open position that is slid from the closed position, The door body is provided with a plate material having a thickness of 40 mm or more, A gap is formed between the door body and the building, A buffer member that is elastically deformable in the thickness direction of the door body is provided, The door body includes one end portion at which the door body is supported and another end portion at which displacement of the door body is guided, the buffer member is provided on both the one end side and the other end side, The door body has the one end provided on an upper side and the other end provided on a lower side, A support rail is provided above the opening; A support roller is provided at the one end, the support roller is supported by the support rail so as to be able to roll; The door body includes the support roller, a connecting member supported by the support roller, and a door panel supported by the connecting member so as to be displaceable in the thickness direction of the door body, The buffer member is provided between the door panel and the connecting member, and is a door for preventing collision with heavy objects.

2. The door system comprises a door body that can open and close an opening facing the outside of a building, a first drive unit that displaces the door body under normal circumstances, and a second drive unit that displaces the door body under emergency circumstances, The first drive unit or the second drive unit displaces the door body between a closed position that closes the opening and an open position that is slid from the closed position, A gap is formed between the door body and the building, The door body is provided with a buffer member that is elastically deformable in the thickness direction of the door body, The door body includes one end portion at which the door body is supported and another end portion at which displacement of the door body is guided, the buffer member is provided on both the one end side and the other end side, The door body has the one end provided on an upper side and the other end provided on a lower side, A support rail is provided above the opening; A support roller is provided at the one end, the support roller is supported by the support rail so as to be able to roll; The door body includes the support roller, a connecting member supported by the support roller, and a door panel supported by the connecting member so as to be displaceable in the thickness direction of the door body, The buffer member is provided between the door panel and the connecting member, and is a door for preventing collision with heavy objects.

3. The door system comprises a door body that can open and close an opening facing the outside of a building, a first drive unit that displaces the door body under normal circumstances, and a second drive unit that displaces the door body under emergency circumstances, The first drive unit or the second drive unit displaces the door body between a closed position that closes the opening and an open position that is slid from the closed position, The door body is provided with a plate material having a thickness of 40 mm or more, A gap is formed between the door body and the building, A buffer member that is elastically deformable in the thickness direction of the door body is provided, The door body includes one end portion at which the door body is supported and another end portion at which displacement of the door body is guided, the buffer member is provided on both the one end side and the other end side, The door body has the one end provided on an upper side and the other end provided on a lower side, A support rail is provided above the opening; A support roller is provided at the one end, the support roller is supported by the support rail so as to be able to roll; The other end is guided by a guide roller provided on the building, The guide roller is displaceable in the thickness direction of the door body relative to the building, The buffer member is a door for preventing collisions with heavy objects, which is provided between the guide roller and the building.

4. The door system comprises a door body that can open and close an opening facing the outside of a building, a first drive unit that displaces the door body under normal circumstances, and a second drive unit that displaces the door body under emergency circumstances, The first drive unit or the second drive unit displaces the door body between a closed position that closes the opening and an open position that is slid from the closed position, A gap is formed between the door body and the building, The door body is provided with a buffer member that is elastically deformable in the thickness direction of the door body, The door body includes one end portion at which the door body is supported and another end portion at which displacement of the door body is guided, the buffer member is provided on both the one end side and the other end side, The door body has the one end provided on an upper side and the other end provided on a lower side, A support rail is provided above the opening; A support roller is provided at the one end, the support roller is supported by the support rail so as to be able to roll; The other end is guided by a guide roller provided on the building, The guide roller is displaceable in the thickness direction of the door body relative to the building, The buffer member is a door for preventing collisions with heavy objects, which is provided between the guide roller and the building.

Images