Doors and windows

Abstract

To provide a door fitting that can prevent fingers from getting caught and does not significantly detract from the aesthetic design of the door. [Solution] A door is attached to a mounting frame having a first vertical frame, a second vertical frame, an upper frame, and a threshold via a connecting member, the connecting member having a first connecting member having a first round bar member and a second connecting member having a second round bar member, the door body having a first round bar receiving recess that engages with the first round bar member and a second round bar receiving recess that engages with the outer circumference shape of the second round bar member, in a top view the first and second round bar members and the first and second round bar receiving recesses have the same center, the end of the door body on the first vertical frame side has, in a top view, a corner formed on the opening direction side of the door body and an arc-shaped portion formed on the closing direction side of the door body, and the portion of the mounting frame on the first vertical frame side facing the door body has a relief portion to avoid interference with the corner when the door body rotates.

Description

Technical Field

[0001] The present invention relates to a fitting such as a swing door that opens and closes by rotation.

Background Art

[0002] In general, for fittings such as doors, pivot hinges are disposed at the upper and lower portions of the door body, and the door is mounted to be openable and closable via the pivot hinges. Normally, the pivot hinge on the side that supports the weight of the door body, that is, the lower side, is provided on the door body and its mounting frame, and has hinge bodies facing each other vertically, a pivot is erected on the lower hinge body, and the upper hinge body is provided with a hole portion into which the pivot is rotatably fitted.

[0003] Various types of pivot hinges have been proposed. For example, Patent Document 1 discloses a pivot hinge that is attached to the lower side that supports the weight of the door body, out of two positions on the upper and lower edge ends of the door body.

[0004] However, in the current configuration of the door body and the mounting frame, there is a risk that a person opening or closing the door may pinch a part of their body such as a finger when opening or closing the door body. In particular, if a finger is pinched on the hinge side, serious injuries such as bone fractures or amputation may occur, and there has been a demand for the development of a fitting that fundamentally eliminates the risk of finger pinching, or a fitting that minimizes the degree of injury even if a finger is pinched.

[0005] Therefore, fittings that can prevent finger pinching and can be easily mounted have been proposed. For example, Patent Document 2 discloses a fitting in which a door body with a circular end portion in a top view is attached to an upper frame and a door sill via a round bar-shaped connecting member.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Patent Document 2

[0007] However, in the case of the door fitting described in Patent Document 2, the edges of the door are formed in a curved shape to prevent fingers from getting caught, which sometimes resulted in an unnatural appearance as the curved surface was exposed on the side in which the door opened.

[0008] Therefore, the present invention aims to provide a door fitting that can prevent fingers from getting caught and does not impair the aesthetic design of the door. [Means for solving the problem]

[0009] To achieve the above objective, the building fixture of the present invention is A door that can be opened and closed by the rotation of a door body attached to a mounting frame having a first vertical frame, a second vertical frame, an upper frame, and a threshold via a connecting member, The connecting member comprises a first connecting member having a first round bar member extending vertically from the end of the upper frame on the first vertical frame side, and a second connecting member having a second round bar member extending vertically from the end of the sill on the first vertical frame side. The door body has a first round bar receiving recess on its upper surface that engages with the first round bar member, and a second round bar receiving recess on its lower surface that engages with the outer circumference shape of the second round bar member. The door body is connected to the upper frame by the first connecting member and to the threshold by the second connecting member. In a top view, the center of the first round bar member, the center of the second round bar member, the center of the first round bar receiving recess, and the center of the second round bar receiving recess are the same. The end of the door body on the first vertical frame side has, in a top view, a corner formed on the opening direction side of the door body and an arc-shaped portion formed on the closing direction side of the door body. The portion of the mounting frame facing the door body on the first vertical frame side is characterized by having a relief portion that avoids interference with the corner when the door body rotates. [Effects of the Invention]

[0010] According to one embodiment of the present invention, it is possible to provide a door fitting that can prevent fingers from getting caught and does not impair the aesthetic design of the door. [Brief explanation of the drawing]

[0011] [Figure 1] Figure 1 is a schematic front view of an example of a joinery according to this embodiment. [Figure 2] Figure 2 is a schematic diagram illustrating the difference between the conventional structure and the structure according to this embodiment. [Figure 3] Figure 3 is a schematic diagram illustrating an example of the configuration of the relief section according to this embodiment. [Figure 4] Figure 4 is a schematic diagram showing an example of the operation of the door body when it rotates according to this embodiment. [Figure 5] Figure 5 shows a schematic diagram illustrating a modified example of the door body and relief section according to this embodiment. [Figure 6] Figure 6 is a schematic diagram illustrating the method for forming the arc-shaped portion according to this embodiment. [Figure 7] Figure 7 is a schematic diagram illustrating the relationship between the positional relationship of walls located near the door and the risk of finger pinching. [Figure 8] Figure 8 is a schematic diagram showing an example where a wall is positioned approximately 180 degrees relative to the closed door body 120. [Figure 9] Figure 9 is a schematic diagram illustrating the door stopper structure according to this embodiment. [Figure 10] Figure 10 is a schematic diagram illustrating the phenomenon of fingers or other objects being trapped between the door and the door stopper, and examples of countermeasures to prevent this. [Modes for carrying out the invention]

[0012] Hereinafter, the best mode for carrying out the fitting according to one embodiment of the present invention and the like will be described with reference to the drawings. Note that the fitting according to the present embodiment can be applied to various forms as long as it is a swing door type fitting that opens and closes by the rotation of a door body, and can be applied to, for example, single-hinged doors, dual-hinged asymmetric doors, single-side door frames, double-side door frames, double-hinged doors, and the like. In the following description, a single-hinged door will be referred to as an example for explanation.

[0013] (Schematic Configuration) Figure 1 shows a schematic front view of an example of the fitting according to the present embodiment.

[0014] As shown in Figure 1, the fitting 100 according to the present embodiment includes a mounting frame 110 having a first vertical frame 112, a second vertical frame 114, an upper frame 116, and a threshold 118, and a door body 120 mounted on the mounting frame 110.

[0015] In the present embodiment, the first vertical frame 112 refers to the vertical frame on the side where the connection members 130 (the first connection member 140 and the second connection member 150) for mounting the door body 120 are arranged, and the second vertical frame 114 refers to the vertical frame on the side opposite to the first vertical frame 112.

[0016] Further, at the end of the door body 120 on the second vertical frame 114 side, a handle portion 122 for performing a rotation operation on the door body 120 is provided.

[0017] In the fitting 100 according to the present embodiment, the upper frame 116 and the door body 120 are connected via the first connection member 140, and the threshold 118 and the door body 120 are connected via the second connection member 150.

[0018] For the detailed configurations of the first connection member 140 and the second connection member 150, for example, configurations similar to those described in Japanese Patent No. 7855204 can be adopted.

[0019] Specifically, the first connecting member 140 has a first round bar member 142 that extends vertically downward from near the end of the upper frame 116 on the first vertical frame 112 side, and the second connecting member 150 has a second round bar member 152 that extends vertically upward from near the end of the sill 118 on the first vertical frame 112 side.

[0020] Furthermore, the door body 120 has a first round bar receiving recess 124 on its upper surface, i.e., the surface facing the upper frame 116, which engages with the first round bar member 142, and a second round bar receiving recess 126 on its lower surface, i.e., the surface facing the sill 118, which engages with the second round bar member 152.

[0021] The first round bar receiving recess 124 and the second round bar receiving recess 126 are formed in a circular shape when viewed from above.

[0022] The door body 120 is rotatably supported on the upper frame 116 by the engagement of the first round bar member 142 with the first round bar receiving recess 124, and is also rotatably supported on the sill 118 by the engagement of the second round bar member 152 with the second round bar receiving recess 126.

[0023] (Conventional structure vs. structure of this embodiment) Figure 2 shows a schematic diagram illustrating the difference between the conventional structure and the structure according to this embodiment.

[0024] As shown in Figure 2(a), in conventional joinery, the entire end of the door body 120 on the first vertical frame 112 side is formed in an arc shape. This makes it possible to maintain a nearly constant distance (α) between the door body 120 and the vertical frame when the door body 120 rotates, thereby preventing fingers from getting pinched.

[0025] However, in such conventional structures, the entire end of the door body 120 on the opening side is formed in an arc shape, and this arc shape is visible from the outside, especially when the door is closed. As a result, the aesthetic appeal or design may be reduced compared to a normal rectangular door body.

[0026] In contrast, as shown in Figure 2(b), in this embodiment, the corner portion 128 is left on the opening side of the door body 120, and the arc-shaped portion 129 is formed only on the closing side. This makes it possible to make the appearance of the opening side of the door body 120 closer to that of a normal rectangular door body when it is closed, and it is possible to suppress the deterioration of aesthetics or design due to the arc-shaped portion being visible from the outside.

[0027] In this embodiment, a relief portion 113 is formed on the first vertical frame 112 side of the mounting frame 110 so that the corner portion 128 does not interfere with the mounting frame 110 when it rotates.

[0028] Specifically, in this embodiment, a relief portion 113 is formed by cutting off a part of the first vertical frame 112. This makes it possible to avoid interference between the corner portion 128 and the first vertical frame 112 when the door body 120 rotates, while maintaining the rectangular appearance of the door body 120 on the opening side.

[0029] Furthermore, in this embodiment, a configuration is adopted in which only one side of the door body 120 is chamfered. This suppresses the entry of fingers into the gap formed between the door body 120 and the door stopper 154, while mitigating the impact when fingers are caught.

[0030] (Example: Configuration of the escape section) Next, as an embodiment, a specific example of the configuration of the relief section 113 will be described in more detail with reference to the figures. Figure 3 shows a schematic diagram illustrating an example of the configuration of the relief section 113 according to this embodiment.

[0031] As shown in Figure 3(a), in this embodiment, an arc-shaped portion 129 is formed on the closing side of the door body 120. In a top view, the arc-shaped portion 129 is formed in an arc shape centered on the rotation center RA (rotation axis RA) of the door body 120.

[0032] Here, the thickness dimension of the door body 120 is set to 2R. Also, point A shown in Figure 3 indicates the outermost edge position at the corner 128 of the door body 120.

[0033] When the door body 120 rotates, point A moves along a circular arc trajectory centered on the rotation center RA. At this time, in a top view, point A is located at a distance R in both the vertical and horizontal directions from the rotation center RA, so the radius of the rotation trajectory of point A is geometrically √2R (see Figure 3(b)).

[0034] Therefore, as shown in Figure 3(c), in this embodiment, a configuration can be adopted in which the mounting frame 110 is machined to a depth of approximately √2R-R. This makes it possible to avoid interference between the corner portion 128 and the mounting frame 110 when the door body 120 rotates, while suppressing the amount of machining required on the mounting frame 110 side.

[0035] Furthermore, if necessary, a predetermined gap α may be secured with respect to the rotational trajectory of point A in order to reliably avoid interference between point A and the mounting frame 110. In this case, it is desirable to form a relief portion 113 on the mounting frame 110 side that can secure at least a gap α, outside the rotational trajectory of radius √2R, as shown in Figures 3(a) and 3(b).

[0036] The specific value of the gap α is preferably within the range of 1 mm to 5 mm. If the gap α is less than 1 mm, the door body 120 and the mounting frame 110 are more likely to come into contact due to construction errors, thermal expansion of the materials, or changes over time, which may cause abnormal noise or malfunction of opening and closing. On the other hand, if the gap α exceeds 5 mm, fingers or other objects are more likely to enter the gap, increasing the risk of finger pinching or getting caught. For this reason, it is preferable to keep the gap α within the aforementioned range.

[0037] In this embodiment, since the arc-shaped portion 129 is formed on the closing side of the door body 120, the depth of the relief portion 113 that should be formed on the mounting frame 110 side can be reduced.

[0038] Furthermore, the relief portion 113 may be formed in a curved shape, or it may be formed in a planar shape as shown in Figure 3(d). In other words, the relief portion 113 only needs to have a shape that can avoid interference with the corner portion 128 in accordance with the rotational trajectory of the door body 120.

[0039] (Specific examples of trajectories) Figure 4 is a schematic diagram showing an example of the operation of the door body 120 when it is rotated according to this embodiment.

[0040] Figure 4(a) shows the door body 120 in the closed state. As shown in Figure 4(a), in this embodiment, a corner portion 128 is left on the opening side of the door body 120, and an arc-shaped portion 129 is formed only on the closing side. Therefore, in the closed state, the appearance of the opening side of the door body 120 can be made to resemble that of a typical rectangular door body, and the deterioration of aesthetics or design due to the arc-shaped portion 129 being clearly visible from the outside can be suppressed.

[0041] Furthermore, as shown in Figure 4(a), a relief portion 113 corresponding to the rotation trajectory of the corner portion 128 is formed on the mounting frame 110 side. This makes it possible to avoid interference between the corner portion 128 and the mounting frame 110 when the door body 120 starts to rotate.

[0042] Figure 4(b) shows the door body 120 rotated from the closed position to the open position by a predetermined angle. As shown in Figure 4(b), in the initial stage of rotation of the door body 120, the corner portion 128 is most likely to come close to the mounting frame 110. However, in this embodiment, since a relief portion 113 is formed on the mounting frame 110 side, the necessary relief space can be secured for the rotation trajectory of the corner portion 128, and interference between the door body 120 and the mounting frame 110 can be suppressed.

[0043] Furthermore, in this embodiment, since the arc-shaped portion 129 is formed on the closing side, it is easier to maintain a relatively constant distance between the door body 120 and the mounting frame 110 when the door body 120 rotates, thereby suppressing finger pinching.

[0044] Figure 4(c) shows the door body 120 rotated further in the opening direction. As shown in Figure 4(c), as the door body 120 rotates, the arc-shaped portion 129 moves along the mounting frame 110. Therefore, even during the rotation of the door body 120, the distance between the door body 120 and the mounting frame 110 can be appropriately maintained.

[0045] Furthermore, as the door body 120 rotates, the corner portion 128 gradually separates from the mounting frame 110, thus reducing the risk of interference during rotation.

[0046] Figure 4(d) shows the door body 120 in an open state of approximately 90 degrees. As shown in Figure 4(d), in this embodiment, even when the door body 120 is fully open, the relief portion 113 formed according to the rotational trajectory of the door body 120 can prevent interference between the door body 120 and the mounting frame 110.

[0047] Furthermore, in this embodiment, since a corner portion 128 is formed on the opening side of the door body 120, safety can be improved while maintaining the appearance when the door body 120 is in the closed state.

[0048] (Variation of finger pinch prevention structure) Next, with reference to Figure 5, a modified example of the finger-pinching structure of the door according to this embodiment will be described with reference to the drawing. Figure 5 shows a schematic diagram of a modified example of the door body 120 and the relief portion 113 according to this embodiment.

[0049] As shown in Figure 5(a), even when a corner portion 128 is formed on the opening side of the door body 120 and an arc-shaped portion 129 is formed on the closing side, a relatively large gap may be formed between the door body 120 and the mounting frame 110 due to differences in the skill of the installer, aging, or deformation of the components, depending on the connection position or shape of the corner portion 128 and the arc-shaped portion 129.

[0050] However, in the configuration shown in Figure 5(a), the portion of the door stopper 154 facing the end is located on the corner 128 side, making it difficult for the user's fingers to enter the rotational trajectory side, thus reducing the risk of finger pinching.

[0051] Furthermore, as shown in Figure 5(b), the position of the transition from the corner portion 128 to the arc-shaped portion 129 may be changed. In this case, as shown in Figure 5(c), when the door body 120 is in the open state, the portion facing the end of the door stop 154 ​​becomes the arc-shaped portion 129.

[0052] As a result, even if the gap between the door body 120 and the mounting frame 110 widens due to construction errors, aging, or deformation of the components, the door stopper 154 restricts the direction in which the user's fingers can enter, making it difficult for the user's fingers to enter near point A, thereby reducing the risk of finger pinching.

[0053] Furthermore, the connection point between the corner portion 128 and the arc-shaped portion 129 of the door body 120 may be formed in a curved shape as shown in Figure 5(d), or it may be formed in a broken line shape or a stepped shape as shown in Figure 5(e).

[0054] In other words, the connection shape between the corner portion 128 and the arc-shaped portion 129 can be modified as appropriate, as long as it avoids interference with the mounting frame 110 when the door body 120 rotates and prevents the user's fingers from entering.

[0055] (Method for forming the arc-shaped portion) Next, with reference to Figure 6, an example of a method for forming the arc-shaped portion 129 on the door body 120 will be described. Figure 6 is a schematic diagram illustrating the method for forming the arc-shaped portion 129 according to this embodiment.

[0056] As shown in Figure 6(a), the door body 120 before the formation of the arc-shaped portion 129 is formed is, for example, roughly rectangular in shape when viewed from above.

[0057] As shown in Figure 6(b), in this embodiment, the arc-shaped portion 129 is formed by cutting the corner of the door body 120 on the closing side. Specifically, if the thickness dimension of the door body 120 is 2R, the corner of the door body 120 on the closing side is cut along an arc of radius R.

[0058] In this case, it is preferable that the arc-shaped portion 129 is formed in an arc shape centered on the rotation center RA of the door body 120 when viewed from above. The central angle of the arc-shaped portion 129 can be, for example, about 130 degrees. However, the central angle of the arc-shaped portion 129 is not limited to this and can be changed as appropriate as long as interference with the mounting frame 110 can be suppressed when the door body 120 rotates.

[0059] As shown in Figure 6(c), the arc-shaped portion 129 can be formed, for example, by cutting using a router bit 180. Specifically, the axis of the router bit 180 is positioned at a predetermined location relative to the door body 120, and the corner of the door body 120 is cut while rotating the router bit 180 to form the arc-shaped portion 129 with radius R.

[0060] Furthermore, a router bit 180 equipped with a bearing may be used. In this case, the arc-shaped portion 129 can be stably formed by moving the router bit while keeping the bearing in contact with the reference surface.

[0061] In this way, by forming the arc-shaped portion 129 using the router bit 180, the arc-shaped portion 129 can be formed relatively easily and with high precision on site or in a factory.

[0062] The method for forming the arc-shaped portion 129 is not limited to cutting with a router bit 180, but may also be formed by cutting using an NC machine, trimmer, milling machine, etc. Furthermore, when the door body 120 is manufactured as a molded product, the arc-shaped portion 129 may be formed integrally during molding.

[0063] (Differences in finger-pinching risk depending on wall placement) Next, referring to Figures 7 and 8, we will explain the differences in the risk of finger pinching depending on the wall configuration and the countermeasures to address them.

[0064] Figure 7 shows a schematic diagram illustrating the relationship between the positional relationship of the wall located near the door body 120 and the risk of finger pinching.

[0065] As shown in Figures 7(a) and 7(b), if the wall W located near the door body 120 is positioned at approximately 90 degrees relative to the closed door body 120, when the door body 120 rotates in the opening direction, the door body 120 itself will shield the space between itself and the wall W.

[0066] Therefore, as shown in Figure 7(b), it becomes more difficult for the user's hand or fingers to enter the gap near the hanging end, thereby reducing the risk of finger pinching.

[0067] On the other hand, Figure 8 is a schematic diagram showing an example where a wall W is positioned approximately 180 degrees relative to the closed door body 120.

[0068] As shown in Figure 8(a), in this case, a space is formed on the opening side of the door body 120, allowing the user's hand or fingers to enter the vicinity of the hinge side.

[0069] In particular, when the door body 120 rotates in the opening direction, as shown in Figure 8(a), there is a risk of the user's fingers getting caught between the door body 120 and the mounting frame 110, resulting in finger pinching.

[0070] Therefore, in this embodiment, as shown in Figure 8(b), a cushioning material 160 made of EVA resin or the like may be provided on the mounting frame 110.

[0071] In the example shown in Figure 8(b), the cushioning material 160 is positioned opposite the open door body 120 to the mounting frame 110. This allows the cushioning material 160 to mitigate the impact of contact even if a user's fingers enter between the door body 120 and the mounting frame 110, thereby reducing injuries caused by pinching.

[0072] Furthermore, the cushioning material 160 also has the effect of reducing collision noise when the door body 120 rotates.

[0073] Furthermore, the cushioning material 160 is not limited to EVA resin, but may be formed from elastic materials such as rubber, elastomer, or foamed resin.

[0074] Furthermore, in this embodiment, an arm stopper, door closer, or door stopper may be used in combination. This suppresses the sudden rotation of the door body 120 and further reduces the risk of finger pinching.

[0075] (Door stopper structure) Next, an example of a door stop structure according to this embodiment will be described with reference to Figure 9. Figure 9 shows a schematic diagram illustrating the door stop structure according to this embodiment.

[0076] As shown in Figure 9, in this embodiment, a door stopper 170 that restricts the rotation of the door body 120 may be provided on the mounting frame 110 or the door stopper 154 side.

[0077] The door stopper 170 is positioned on the rotational trajectory of the door body 120, and when the door body 120 rotates to a predetermined angle, it contacts the door body 120 to restrict further rotation.

[0078] In this embodiment, the amount or height of the door stopper 170 may be adjustable. This allows the opening angle at which the door body 120 stops to be adjusted as appropriate.

[0079] For example, if it is desired to prevent interference with walls, furniture, or other equipment, the opening angle of the door 120 may be set to a relatively small value. Furthermore, by arbitrarily setting the opening angle of the door 120 according to the usage environment, safety can be improved while ensuring the user's movement path.

[0080] Furthermore, the door stopper 170 may be provided with a cushioning member made of EVA resin, rubber, elastomer, or the like. This reduces the impact and collision noise when the door body 120 comes into contact with the door stopper 170.

[0081] Furthermore, the door stopper 170 is not limited to a mechanical stopper structure, but may also be configured using magnets, spring members, damper members, etc.

[0082] (Anti-slip structure) Next, with reference to Figure 10, the door-to-door mechanism's anti-snagging structure according to this embodiment will be described. Figure 10 shows a schematic diagram illustrating the phenomenon of fingers or other objects being snagged between the door body 120 and the door stopper 154, and an example of countermeasures against it.

[0083] As shown in Figure 10(a), when a user rotates the door body 120 in the closing direction, the user's fingers may come into contact with the gap formed between the door body 120 and the door stopper 154. In particular, if the skin is moist, the coefficient of friction between the fingers and the door body 120 or door stopper 154 increases, and there is a risk that the fingers will be pulled into the gap.

[0084] This type of entrapment phenomenon can occur even when the user does not voluntarily insert their fingers into the gap, similar to the phenomenon for which warnings are issued regarding sliding doors on trains, for example.

[0085] Therefore, in this embodiment, as shown in Figure 10(b), a chamfered portion 156 may be formed on the corner on the door stopper 154 side.

[0086] This reduces the sharp corners between the door body 120 and the door stop 154, thereby suppressing the phenomenon of fingers being guided into the gap.

[0087] Furthermore, by forming the chamfered portion 156, even if the user's finger comes into contact with the door stopper 154, the contact area can be increased, thereby suppressing localized pressure concentration and reducing pain or injury.

[0088] Furthermore, in this embodiment, the chamfered portion 156 may be formed in a curved shape or a flat shape. In other words, the specific shape of the chamfered portion 156 can be changed as appropriate, as long as it is a shape that can prevent fingers or the like from being drawn in.

[0089] In this embodiment, an example was given in which the door body 120 is formed in an arc shape when viewed from above. However, this method is also applicable to a door body 120 having a corner formed on the opening side and an arc-shaped portion formed on the closing side.

[0090] As described above, according to the joinery 100 of this embodiment, a corner portion 128 is left on the opening direction side of the door body 120, an arc-shaped portion 129 is formed on the closing direction side, and a relief portion 113 is formed on the mounting frame 110 side.

[0091] This allows the door body 120 to avoid interference between the door body 120 and the mounting frame 110 when the door body 120 rotates, while making the appearance of the door body 120 on the opening side closer to that of a typical rectangular door body. As a result, compared to the conventional configuration in which the entire end of the door body is arc-shaped, a decrease in aesthetic appeal or design can be suppressed.

[0092] Furthermore, in this embodiment, since the relief portion 113 is formed in accordance with the rotation trajectory of the corner portion 128, the door body 120 can rotate smoothly without creating an unnecessarily large relief space.

[0093] Furthermore, in this embodiment, since the arc-shaped portion 129 is formed on the closing side of the door body 120, the amount of processing required for the relief portion 113 to be formed on the mounting frame 110 side can be reduced, thereby improving workability and processability.

[0094] Furthermore, in this embodiment, by appropriately adjusting the connection position or shape between the corner portion 128 and the arc-shaped portion 129, even if the gap between the door body 120 and the mounting frame 110 widens due to construction errors, aging, or deformation of the components, it is possible to create a configuration that makes it difficult for the user's fingers to enter a dangerous position.

[0095] Furthermore, in this embodiment, by forming a chamfered portion 156 on the door stop 154 ​​side, the phenomenon of fingers or other objects being pulled in between the door body 120 and the door stop 154 ​​can be suppressed.

[0096] Furthermore, by providing cushioning material 160 on the mounting frame 110 or door stopper 154, even if a user's finger enters, the impact of contact can be mitigated, reducing injuries caused by finger pinching.

[0097] Furthermore, in this embodiment, by using a door stopper 170, an arm stopper, or a door closer in combination, the sudden rotation of the door body 120 can be suppressed, further improving safety.

[0098] Furthermore, in this embodiment, since the arc-shaped portion 129 or the chamfered portion 156 can be formed using a router bit or the like, processing can be performed relatively easily and with high precision. As a result, stable safety performance and aesthetic appeal can be achieved while suppressing quality variations due to differences in skill among installers.

[0099] Although embodiments of the present invention have been described above with reference to the drawings, it should be understood that the specific configurations are not limited to these embodiments. The scope of the present invention is indicated not only by the above-described embodiments but also by the claims, and further includes all modifications within the meaning and scope of equivalence to the claims. [Explanation of symbols]

[0100] 100 Doors and fittings 110 Mounting frame 112 First vertical frame 113 Escape Club 114 Second vertical frame 116 Upper frame 118 Kutsuzuri 120 Door Body 122 Handle section 124 First round bar receiving recess 126 Second round bar receiving recess 128 corners 129 Arc-shaped part 130 Connecting Member 140 First connecting member 142 First round bar member 150 Second connecting member 152 Second round bar member 154 per household 156 Chamfered section 160 cushioning material 170 Door stop 180 Router Bits

Claims

1. A door that can be opened and closed by the rotation of a door body attached to a mounting frame having a first vertical frame, a second vertical frame, an upper frame, and a threshold via a connecting member, The connecting member comprises a first connecting member having a first round bar member extending vertically from the end of the upper frame on the first vertical frame side, and a second connecting member having a second round bar member extending vertically from the end of the sill on the first vertical frame side. The door body has a first round bar receiving recess on its upper surface that engages with the first round bar member, and a second round bar receiving recess on its lower surface that engages with the outer circumference shape of the second round bar member. The door body is connected to the upper frame by the first connecting member and to the threshold by the second connecting member. In a top view, the center of the first round bar member, the center of the second round bar member, the center of the first round bar receiving recess, and the center of the second round bar receiving recess are the same. The end of the door body on the first vertical frame side has, in a top view, a corner formed on the opening direction side of the door body and an arc-shaped portion formed on the closing direction side of the door body. The portion of the mounting frame facing the door body on the first vertical frame side has a relief portion to avoid interference with the corner when the door body rotates. The relief portion has a concave arc surface formed on the surface of the first vertical frame facing the door body, in a top view, where the outermost edge of the corner is formed along an arc-shaped rotation trajectory drawn around the rotation center of the door body, and the gap between the concave arc surface and the rotation trajectory is in the range of 1 mm to 5 mm.

2. The mounting frame is provided with a door stopper, In the open state of the door body, the connection position between the corner and the arc-shaped portion is set such that the portion of the door body facing the end of the door stop becomes the arc-shaped portion. The joinery according to claim 1.

3. The aforementioned arc-shaped portion is formed in an arc shape with respect to the rotation center of the door body. The joinery according to claim 1.

4. The connection position between the corner and the arc-shaped portion is set in such a way that it prevents the user's finger from entering the rotational trajectory side of the corner. The joinery according to claim 1.

5. The aforementioned mounting frame is provided with a cushioning material made of an elastic material. The joinery according to claim 1.

6. The mounting frame is provided with a door stopper, and the door stopper is provided with a door stopper that restricts the open position of the door body. The joinery according to claim 1.

7. The aforementioned door stopper is chamfered. The joinery according to claim 6.

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