door

Abstract

To provide an easy-to-open door.SOLUTION: The invention comprises a door 1 and a handle 2, and the door 1 is opened by pulling the handle 2. The door 1 has a latch 4 that can be freely engaged with and disengaged from a vertical frame 3 at a door tip 1a, and a smoke return 5 facing a gap 16 with the vertical frame 3. The handle 2 is provided at a position facing the smoke return 5 of the door 1 or a position adjacent to the smoke return 5 when viewed from the depth direction. The handle is connected by an arm 7 to a pedestal 6 attached to the depth surface of the door 1. When the handle 2 is pulled, the handle 2 rotates in the same direction B as the opening direction A of the door 1, and the engagement between the latch 4 and the vertical frame 3 is released.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a door to be installed at an entrance or the like. [Background technology]

[0002] Outward-opening doors are often used at entrances to houses (for example, see Non-Patent Document 1). In recent years, doors have become larger and heavier, and as a result, doors can feel heavy when opening them. [Prior art documents] [Patent documents]

[0003] [Non-Patent Document 1] Sankyo Tateyama Co., Ltd. Catalog published by Sankyo Aluminum Co., Ltd. "Entrance Door Fanova Style Select" (Catalog No. STJ1607A KY.20.05-150), May 2020, p.88-89 Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE PRESENT EMBODIMENT In view of the above-mentioned circumstances, an object of the present invention is to provide a door that is easy to open. [Means for solving the problem]

[0005] In order to achieve the above object, the door according to the invention described in claim 1 comprises a door and a handle, and the door is opened by pulling the handle. The door has a latch at the end of the door that can be freely engaged and disengaged with the vertical frame, and a smoke guard that faces the gap between the vertical frame, and the handle is positioned opposite the smoke guard of the door when viewed from the front direction. Place The handle is connected by an arm to a base attached to the front surface of the door, and when the handle is pulled, it rotates in the same direction as the door opens, disengaging the latch from the vertical frame. Effect of the Invention

[0006] The door according to the invention described in claim 1 has a handle that faces the door flap when viewed from the front. Place By connecting the handle to a base attached to the front surface of the door with an arm, the distance from the hinge to the handle becomes longer, reducing the force required to pull the handle when opening the door. Furthermore, when the handle is pulled, it rotates in the same direction as the door opens and the latch disengages from the vertical frame, so the latch can be released and the door can be opened smoothly and continuously just by pulling the handle towards you, making the door easier to open. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a cross-sectional view showing a first embodiment of a door of the present invention. [Diagram 2] FIG. 2 is an exterior side front view of the door of the first embodiment. [Diagram 3] FIG. 1 is a cross-sectional view showing the movement of the handle and latch when the door is opened. [Figure 4] FIG. 11 is an exterior side front view showing a modified example of the door of the first embodiment. [Diagram 5] FIG. 4 is a cross-sectional view showing a second embodiment of a door of the present invention. [Figure 6] FIG. 11 is an exterior side front view of the door of the second embodiment. [Figure 7] FIG. 11 is a cross-sectional view showing a third embodiment of a door of the present invention. [Figure 8] FIG. 11 is an exterior side front view of the door of the third embodiment. [Figure 9] FIG. 11 is a diagram showing the results of calculations of how the force required to pull the handle required to open the door of the first embodiment changes in comparison with conventional doors (Comparative Examples 1 and 2). [Figure 10] FIG. 11 is a plan view showing, in comparison, the movement of the handle when opening the door of the first embodiment and the movement of the handle when opening the door of Comparative Example 2. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Figures 1 to 3 show a first embodiment of a door of the present invention. This door is an entrance door, and comprises a frame 8 attached to an opening in a building frame, and a door 1 attached to the frame 8 with hinges 9 so as to open to the outside. As shown in Figure 2, the door 1 comprises a handle 2 on the door end side, a latch lock 10 linked to the handle 2, and main locks 11a, 11b provided at two locations, above and below.

[0009] As shown in Figure 1, the door 1 is constructed by placing a core material 13 made of polystyrene foam board or the like on the inside of a frame 12 arranged around the perimeter, and attaching panels 14a, 14b made of steel plate to the outside and inside of the door. An edge material 15 made of an aluminum profile is attached to the door end of the door 1 over its entire length in the vertical direction. The edge material 15 has a smoke deflector 5 that hides the gap 16 between the door end 1a of the door 1 and the vertical frame 3 from the outside of the door.

[0010] The handle 2 is formed in the shape of a rod extending in the vertical direction, and is provided in a position facing the smoke guard 5 of the door 1 when viewed from the front direction, as shown in Figure 1. The upper and lower parts of the handle 2 are connected to a base 6 attached to the front surface of the door 1 by an arm 7. As shown in Figure 1, each arm 7 extends diagonally from the base 6 toward the door edge, and its base end is journaled to the base 6 by a vertical shaft 17. The upper base 6 is provided with a lever 18 that moves in conjunction with the arm 7, and the lever 18 is inserted into a case 19 of the latch lock 10. As will be described later, the lever 18 is used to unlock the latch 4 of the latch lock 10 when the door 1 is opened.

[0011] As shown in Fig. 1, the latch lock 10 has a latch 4 that can be freely engaged and disengaged with a receiver 20 provided on the vertical frame 3. When the door 1 is closed, the latch 4 protrudes from the door end 1a of the door 1 and is locked by a locking member (not shown) with the exterior side surface 21 at a right angle and the interior side surface 22 as an inclined surface. The door 1 is locked when the latch 4 engages with the receiver 20 of the vertical frame 3.

[0012] When the door 1 is closed as shown in Fig. 3(a), if the handle 2 is put on and pulled toward the door 1 to open it, the handle 2 and the arm 7 rotate about the shaft 17 in the same direction B as the direction A in which the door 1 opens, as shown in Fig. 3(b), and the lever 18 moves in conjunction with the movement of the arm 7, unlocking the latch 4 by the locking member, and the latch 4 retracts into the case 19 while rotating as the door 1 is pulled toward the outside of the room, and the latch 4 is disengaged from the receiver 20 of the vertical frame 3. After that, as shown in Fig. 3(c), the door 1 is opened further by pulling the handle 2 further, and the latch 4 returns to its original position by a spring (not shown) built into the case 19. When the handle 2 is released after the door 1 is opened, the handle 2 returns to its original position by a spring (not shown) built into the base 6.

[0013] Fig. 4 shows a modification of the door of the first embodiment. This door has a long bar handle 2 that spans almost the entire height of the door 1. The handle 2 is connected via an arm 7 to a base 6 attached to the front surface of the door 1 at three points: the upper part, lower part, and middle part. Note that the same long bar handle can also be used in the second and third embodiments described later.

[0014] The door of the first embodiment described above is easier to open than conventional doors because the handle 2 is located opposite the outside of the smoke guard 5 of the door 1 and the handle 2 rotates in the same direction B as the opening direction A of the door 1 to disengage the latch 4 from the vertical frame 3. Figure 9 shows the results of calculations of how the force required to pull the handle 2 to open the door 1 changes for the door of the first embodiment, comparison example 1 in which the handle 2 is located facing the outside side of the base 6, and comparison example 2 in which the handle 2 is located closer to the end of the door than the base 6 (this is the configuration of a conventional long bar handle). The force required to pull handle 2 to open door 1 becomes lighter as the distance L from the hanging point to the center of handle 2 increases. In the first embodiment, the distance L from the hanging point to the center of handle 2 is 1.1 times that of comparative example 1, and the force required to pull handle 2 to open door 1 is 0.9 times the reciprocal of that, that is, reduced by 10%. On the other hand, in comparative example 2, the force required to pull handle 2 to open door 1 is 1.11 times that of comparative example 1, that is, an 11% increase. The force required to pull handle 2 to open door 1 in the first embodiment is reduced by 19% compared to comparative example 2.

[0015] Furthermore, in the case of the handle 2 of Comparative Example 2, as shown in FIG. 10(b), when opening the door 1, the handle 2 is first moved in the opposite direction to the opening direction of the door 1 and then pulled towards itself, which is a two-stage movement, whereas in the case of the first embodiment, as shown in FIG. 10(a), the handle 2 is moved in the same direction as the opening direction of the door 1, allowing the release of the latch 4 and the opening operation of the door 1 to be performed smoothly and consecutively. This, combined with the reduction in the force required to pull the handle 2 to open the door 1 as described above, makes it easier to open the door 1.

[0016] 5 and 6 show a second embodiment of the door (entrance door) of the present invention. In this door, the handle 2 is provided at a position facing the door 1 adjacent to the tail end side of the smoke guard 5 of the door 1. In this case, the distance from the hanging point to the center of the handle 2 is closer compared to the first embodiment, but the distance from the hanging point to the center of the handle 2 is farther than in the conventional ones (Comparative Example 1 and Comparative Example 2), so it is possible to reduce the force required to pull the handle 2 to open the door 1. Also, since the handle 2 does not protrude toward the outer periphery from the door end 1a of the door 1, the handle 2 is less likely to get in the way, and it is easy to place your hand on the handle 2 even if there is a wall very close to the vertical frame 3 on the door end side.

[0017] 7 and 8 show a third embodiment of the door (entrance door) of the present invention. In this door, the handle 2 is provided at a position facing the vertical frame 3 adjacent to the door end side of the smoke guard 5 of the door 1. In this case, the distance from the hanging point to the center of the handle 2 is further than in the first embodiment, so the force required to pull the handle 2 to open the door 1 can be further reduced.

[0018] As described above, in this door (first, second and third embodiments), the handle 2 is provided in a position facing the smoke deflector 5 of the door 1 when viewed from the front direction or in a position facing the position adjacent to the smoke deflector 5, and is connected by an arm 7 to a base 6 attached to the front surface of the door 1, which increases the distance from the hanging point to the handle 2, thereby reducing the force required to pull the handle 2 when opening the door 1, and further, when the handle 2 is pulled, it rotates in the same direction B as the opening direction A of the door 1, and the latch 4 disengages from the vertical frame 3, so that simply by pulling the handle 2 towards you, the latch 4 can be released and the door 1 can be opened smoothly and continuously, making the door easy to open. In the door of the first embodiment, the handle 2 is provided in a position opposite the smoke guard 5 of the door 1, which allows for a relatively large reduction in the force required to pull the handle 2 to open the door 1, and since the handle 2 does not protrude too far from the door end 1a of the door 1, operability and design are also good. In the door of the second embodiment, the handle 2 is provided in a position facing the adjacent door 1 on the tail side of the smoke guard 5 of the door 1, thereby reducing the force required to pull the handle 2 to open the door 1. Also, since the handle 2 does not protrude outward from the door end 1a of the door 1, the handle 2 is less likely to get in the way, and it is easy to place your hand on the handle 2 even if there is a wall very close to the vertical frame 3 on the door end side. In the door of the third embodiment, the handle 2 is provided in a position opposite the vertical frame 3 adjacent to the door end side of the smoke guard 5 of the door 1, so that the distance from the hinge to the handle 2 is longer than in the first embodiment, and therefore the force required to pull the handle 2 to open the door 1 can be further reduced. The door shown in FIG. 4 has handle 2 which is a long bar handle that spans almost the entire height of door 1. Therefore, no matter where on long bar handle 2 is held, latch 4 can be released and door 1 can be opened, making it easy for anyone, regardless of height, to open.

[0019] The present invention is not limited to the above-described embodiment. The shape and material of the handle can be changed as appropriate. The structure of the latch lock, the shape of the latch, and the structure of the mechanism that links the handle and the latch are not important. The material and structure of the door are arbitrary. [Explanation of symbols]

[0020] 1 Door 2 Handle 3 Vertical Frame 4 Latch 5. Smoke Return 6 Pedestal 7 Arm

Claims

[Claim 1] This door is equipped with a door and a handle, and opens when the handle is pulled. The door has a latch at the door end that can be freely engaged and disengaged with a vertical frame, and a smoke guard that faces the gap between the vertical frame and the door. The handle is provided at a position that faces the smoke guard when viewed from the front direction and is connected by an arm to a base attached to the front surface of the door. When the handle is pulled, it rotates in the same direction as the door opens, and the latch disengages from the vertical frame.

Images