Door stopper device and hinged door device equipped with this door stopper device

Abstract

The present invention provides a door stopper device that can be easily attached to a door frame, does not impair the design of the door, and prevents accidents such as fingers getting caught, as well as a hinged door device equipped with this door stopper device. [Solution] The door stop device is for a hinged door that can be opened and closed around a vertical axis and comprises a main body member having a back wall and side walls, with through holes provided at mutually opposing positions on each side wall; a pivot shaft whose ends are fitted into and supported by the through holes of the main body member; a rod-shaped pivot member that is rotatably supported by the pivot shaft; and a spacer member having a mounting surface for attachment to a door frame or wall surface and a mounting surface on the side opposite to the mounting surface to which the main body member is attached. The spacer member is formed such that, in a cross-sectional view perpendicular to the longitudinal direction, the mounting surface forms a predetermined inclination angle with respect to the mounting surface.

Description

Technical Field

[0001] The present invention relates to a door stopper device attached to a door frame for preventing an accident of pinching a finger or the like by restricting the closing stop position of a hinged door, that is, the amount of closing left incomplete, and a hinged door device provided with this door stopper device.

Background Art

[0002] In hinged doors provided in houses, public facilities, office facilities, commercial facilities, etc., when closing the hinged door, an accident of pinching a finger or the like may occur between the door tip of the hinged door and the side frame of the door frame, which has been a problem.

[0003] Conventionally, in order to solve this problem, a simple guard is attached to the door (door leaf) of the hinged door, protruded during use to suppress the movement of the hinged door before it is completely closed, and retracted when not in use to close the door. A stopper for a hinged door is well-known.

[0004] Also, in a hinged door, when not in use, an arm is housed in a groove formed in the front end surface of the hinged door, and when in use, the arm is pulled out to a position where it can be pinched with a finger by a simple operation, and before the door tip of the hinged door abuts against the side frame of the hinged door, the movement of the hinged door can be suppressed. A stopper for a hinged door (hinged door finger-stopping door stopper) has also been proposed (Patent Document 1).

[0005] The stopper for a hinged door described in Patent Document 1 is composed of a box-shaped base, an arm housed in the base and having at least a pair of opposing surfaces, and a rotation center shaft inserted into grooves formed in the pair of opposing surfaces of the arm. When attached to the door tip of a hinged door, it can prevent an accident of pinching a finger or the like between the tip of the hinged door and the frame body.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

[0007] However, when installing a guard (stopper) on a conventional door, it is attached to the edge of the hinged door, which has the problem of compromising the door's design. Also, because it is always opened and closed together with the door, it protrudes from the edge of the door, especially when in use, which poses a risk of injury from getting caught on it.

[0008] Furthermore, the door stopper for hinged doors described in Patent Document 1 requires machining a groove for installation on the edge of the hinged door, making the installation process complicated. In addition, because it is installed on the edge of the hinged door, it has the problem of spoiling the appearance of the door.

[0009] Therefore, the object of the present invention is to provide a door stopper device that can be easily attached to a door frame, does not impair the design of the door, and can prevent accidents such as fingers getting caught, as well as a hinged door device equipped with this door stopper device.

[0010] Another object of the present invention is to provide a door stopper device that can handle both left and right sides independently with a single type of device, and a hinged door device equipped with this door stopper device. [Means for solving the problem]

[0011] According to the present invention, a door stop device for a hinged door having a door that can be opened and closed around a vertical axis comprises a main body member having a back wall and side walls, with through holes provided at mutually opposing positions on each side wall; a pivot shaft whose ends are fitted into and supported by the through holes of the main body member; a rod-shaped pivot member rotatably supported by the pivot shaft; and a spacer member having a mounting surface for attachment to a door frame or wall surface and a mounting surface on the side opposite to the mounting surface to which the main body member is attached, wherein the spacer member is formed such that, in a cross-sectional view perpendicular to the longitudinal direction, the mounting surface forms a predetermined inclination angle with respect to the mounting surface (hereinafter referred to as "the first door stop device of the present invention").

[0012] This allows the door stopper device to be easily installed without requiring any recessing into the door frame or wall, and the rotating member can be positioned vertically when not in use and horizontally when in use. Therefore, it does not detract from the door's design and prevents accidents such as fingers getting caught. Furthermore, since there are no protruding parts on the door, safety is also improved.

[0013] In this specification, "vertical position" refers to the state in which the rotating member is rotated in a direction parallel to the back wall of the main body member (the state in which it is rotated so as to be parallel to the surface of the door frame when attached to a door frame, i.e., the stored state), and "horizontal position" refers to the state in which the rotating member is rotated in a direction perpendicular to the back wall of the main body member (the state in which it is rotated so as to be perpendicular to the surface of the door frame when attached to a door frame, i.e., the usage state).

[0014] Furthermore, the main body component is formed separately from the spacer component, and by changing the mounting direction of the angled spacer component, it can be adapted to either the left or right side.

[0015] In the first door stop device of the present invention, it is preferable that a retaining means for holding a main body member is further provided, the retaining means being formed in a substantially U-shape from a resin material and having a pair of locking claws that engage with both side edges of the back wall of the main body member, and being attached to a spacer member so that the main body member can be attached and detached (hereinafter referred to as the "second door stop device of the present invention").

[0016] This allows for easy attachment and removal of the main body component from the spacer component. Furthermore, if the rod-shaped rotating component is positioned horizontally while the door is closed, opening the door will cause it to hit the rotating component, deforming the resin retaining mechanism and allowing the main body component to detach, thus enabling emergency release.

[0017] In the first or second door stop device of the present invention, it is also preferable that the device further comprises a biasing member having one end connected to the pivot shaft and the other end connected to the middle of the rotating member to bias the rotating member in the direction of the pivot shaft, the main body member having at least one recess or protrusion on its rear wall, the rotating member having an elongated hole through which the pivot shaft is inserted at one end, being rotatably supported by the pivot shaft and configured to slide along the elongated hole in the direction of one end and the opposite direction, and having at least one protrusion or recess on the end face of the rotating member on the side supported by the pivot shaft, and the main body member having at least one recess or protrusion on its rear wall into which the protrusion or recess can be fitted, and at least one rotation restricting portion that engages with the protrusion or recess when the rotating member is in a position parallel to the rear wall of the main body member and restricts the rotation of the rotating member (hereinafter referred to as "the third door stop device of the present invention").

[0018] This ensures that the lateral position of the rotating member is reliably maintained, and by pulling the rotating member, at least one protrusion or recess disengages from the at least one recess or protrusion, making it rotatable and allowing for easy rotation.

[0019] Furthermore, the vertical position of the rotating member can be reliably maintained, and by pulling the rotating member, the rotation restriction by the rotation restricting part is released, making it rotatable and allowing for easy rotational operation.

[0020] In the first or second door stop device of the present invention, it is also preferable to further include a cover member having cushioning properties that covers at least a portion of the surface of the other end of the rotating member (hereinafter referred to as the "fourth door stop device of the present invention").

[0021] This allows it to perform functions such as cushioning to reduce impact, silencing noise during collisions, and preventing damage to hinged doors.

[0022] In the door stopper device of the fourth aspect of the present invention, the cover member has a substantially cylindrical surface, and is formed by providing a notch on the side surface of the open end side of a hollow columnar body with one end open, and the notch is configured to overlap with the back wall when the rotating member is in a position parallel to the back wall of the main body member. (Hereinafter, it is referred to as "the door stopper device of the fifth aspect of the present invention".).

[0023] In the door stopper device of the fifth aspect of the present invention, in the storage state when not in use, it looks good and can be stored compactly.

[0024] According to the present invention, the hinged door device includes the door stopper device of the present invention described above and a hinged door having a door that can be opened and closed around a vertical axis, and the door stopper device is attached to the door frame or wall surface on the door tip side of the hinged door. (Hereinafter, it is referred to as "the hinged door device of the sixth aspect of the present invention".).

[0025] In the hinged door device of the sixth aspect of the present invention, no recessing process is required on the door frame or wall surface, and it can be easily attached. The rotating member can be set to the vertical position when not in use and to the horizontal position when in use. Therefore, it does not impair the design of the door, and can prevent accidents such as pinching fingers. Furthermore, since there is no protruding object on the door, the safety can also be improved.

Effects of the Invention

[0026] According to the door stopper device of the present invention, it includes a main body member, a rod-shaped rotating member that is rotatably supported by a rotating shaft on the main body member, and a spacer member to which the main body member is attached. The spacer member has an attachment surface for attaching to the door frame and a mounting surface on the side facing the attachment surface where the main body member is mounted, and the mounting surface is formed at a predetermined inclination angle with respect to the attachment surface. As a result, it can be easily attached without the need for recessing the door frame or wall surface. The rotating member can be placed in a vertical position when not in use and in a horizontal position when in use. Also, since it is attached to the door frame, there is no need to attach anything to the door of the hinged door, so the design of the door is not impaired, and accidents such as pinching fingers can be prevented. Furthermore, since there is nothing protruding from the door, safety can also be improved. In addition, depending on the direction of attaching the spacer member to the door frame, one type of door stopper device can easily accommodate both left and right handiness.

[0027] Also, the posture of the rotating member in the horizontal position can be reliably maintained, and by pulling the rotating member, at least one convex portion or concave portion can be disengaged from at least one concave portion or convex portion to be in a rotatable state, and the rotation operation can be easily performed. Also, by providing a rotation restricting portion, the posture of the rotating member in the vertical position can also be reliably maintained, and by pulling the rotating member, the rotation restriction by the rotation restricting portion is released to be in a rotatable state, and the rotation operation can be easily performed. That is, by applying an operation of pulling against the biasing member, malfunction can be prevented.

Brief Description of the Drawings

[0028] [Figure 1] It is a perspective view schematically showing the overall configuration (in use state) of the door stopper device according to an embodiment of the present invention. [Figure 2] It is a perspective view schematically showing the overall configuration (in storage state) of the door stopper device of FIG. 1. [Figure 3] It is an exploded perspective view schematically showing the configuration of the door stopper device of FIG. 1. [Figure 4] It is a perspective view schematically showing the installation state with different handiness of the door stopper device of FIG. 1. [Figure 5] Figure 1 is an explanatory diagram of the angle of the spacer in the door stopper device. [Figure 6] Figure 1 is a schematic cross-sectional view showing the operating state of the door stopper device. [Figure 7] This figure schematically shows the configuration of a hinged door device equipped with the door stopper shown in Figure 1. [Figure 8] Figure 7 is a top view schematic illustrating the operating state of the door stop device in the hinged door mechanism, showing (A) the door stop device in its retracted state and (B) the door stop device in its operational state. [Figure 9] Figure 7 is a schematic, enlarged view showing the usage state of the door stopper device in the hinged door mechanism. [Figure 10] Figure 7 is a schematic perspective view showing the retracted state of the door stopper device in the hinged door mechanism. [Figure 11] Figure 7 is a schematic top view showing the emergency release state of the door stop device in the hinged door mechanism. [Figure 12] This is a schematic perspective view showing another example of the configuration of the door stopper device of the present invention. [Modes for carrying out the invention]

[0029] Hereinafter, embodiments of the door stopper device and a hinged door device equipped with this door stopper device according to the present invention will be described with reference to the figures.

[0030] Figures 1 and 2 show the overall configuration of a door stopper device 100 according to an embodiment of the present invention. Figure 1 shows the rotating member 20 of the door stopper device 100 in a horizontal position (used state), and Figure 2 shows the rotating member 20 of the door stopper device 100 in a vertical position (stored state). Figure 3 shows the configuration of each part of the door stopper device 100, and Figure 4 shows the door stopper device 100 installed in a left-hand or right-hand configuration. Figure 5 is an explanatory diagram of the angle of the spacer 50 in the door stopper device 100. Figure 6 shows the operating state of the door stopper device 100.

[0031] As shown in Figures 1 to 6, the door stop device 100 according to this embodiment comprises a main body member 10, a rotating member 20, a rotating shaft 30, a cover member 40, a spacer member 50, a locking member 60, and a biasing member 70. This door stop device 100 is attached to the side frame of a hinged door in which a door that can be opened and closed around a vertical axis is provided between door frames erected on the left and right sides.

[0032] The main body member 10 is a concave-shaped member having a back wall 11, side walls 12, and an end face portion 13. Through holes 14 are provided in each of the side walls 12 at positions opposite to each other, and two recesses 15 are provided in the back wall 11. In this embodiment, each of these two recesses 15 is a square through hole. Furthermore, the end face portion 13 of the main body member 10 is provided with a rotation restricting portion 16 into which a protrusion 22 is fitted when the rotating member 20 is in the vertical position, thereby restricting the rotation of the rotating member 20. This rotation restricting portion 16 is composed of two recesses (or two through holes) formed in the end face portion 13. In addition, the back wall 11 of the main body member 10 is provided with a locking recess 17 that locks with a pair of locking claws 55a of the holding means 55 when the main body member 10 is mounted and held on the spacer member 50.

[0033] The rotating member 20 is formed, for example, from a rod-shaped material made of a metal material having a substantially semicircular cross-section, and has an elongated hole 21 at one end through which the rotating shaft 30 is inserted. This elongated hole 21 extends in the direction along the axis of the rotating member 20 (i.e., it has a longitudinal direction). The rotating member 20 is rotatably supported by the rotating shaft 30 inserted through this elongated hole 21, and is configured to slide along this elongated hole 21 in the direction along its axis, i.e., in the direction of one end and the opposite direction of the other end. Furthermore, the end face of the rotating member 20 on the side supported by the rotating shaft 30 is provided with two protrusions 22 that can be fitted into two recesses 15 provided in the back wall 11 of the main body member 10. In addition, a hollow portion 23 for inserting and positioning a biasing member 70 is formed in the portion of the rotating member 20 on the side supported by the rotating shaft 30. Mounting holes 24 for attaching the locking member 60 are provided on both sides of the rotating member 20 at a point along its axis (approximately the center in this embodiment).

[0034] The pivot shaft 30 is, for example, a hollow cylindrical rod formed by winding a metal plate. This pivot shaft 30 is inserted through the elongated hole 21 of the rotating member 20, and both ends are fitted into the through-holes 14 of the main body member 10 for support. As a result, the rotating member 20 is supported so as to be rotatable around the pivot shaft 30 and also slidable in the longitudinal direction of the elongated hole 21. That is, the pivot shaft 30 is configured to slide along the elongated hole 21 through which the pivot shaft 30 is inserted, in the direction of the end of the rotating member 20 having the elongated hole 21 and in the opposite direction. Note that the pivot shaft 30 may also be a solid cylindrical rod.

[0035] The cover member 40 is formed to cover at least a portion of the surface of the tip of the rotating member 20 (the side that contacts the door) from a cushioning material such as rubber. In this embodiment, the cover member 40 has a substantially cylindrical surface and has an open end 40a and a sealed end 40b of a hollow columnar body with one end open. A notch 41 is formed on the side surface of the open end 40a, and the notch 41 is configured to overlap with the back wall 11 when the rotating member 20 is in a position parallel to the back wall 11 of the main body member 10 (vertical position). The cover member 40 is also attached so as to cover the tip of the rotating member 20. The material that can be used as the cover member 40 is not particularly limited as long as it is a cushioning material.

[0036] The spacer member 50 is made of a metal or resin material and has a mounting surface 51 for attachment to the door frame and a mounting surface 52 on the side opposite to the mounting surface 51 to which the main body member 10 is attached. In a cross-sectional view perpendicular to the longitudinal direction, the mounting surface 52 is formed to have a predetermined inclination angle α with respect to the mounting surface 51. In this embodiment, as shown in Figure 5, the inclination angle α of the spacer member 50 is preferably 15 to 25 degrees (see Figures 5(B) to (D)). More preferably, it is 20 degrees (see Figure 5(C)). If the inclination angle α is less than 15 degrees (see Figure 5(A)), the portion that receives the door in the operating state is small, and there is a risk that the door movement cannot be restricted. On the other hand, if the inclination angle α is greater than 25 degrees (see Figure 5(E)), the end of the cover member 40 cannot receive the door, and the contact with the door becomes a point contact between the end face and the side surface, resulting in a lack of stability.

[0037] Furthermore, the spacer member 50 can be attached to either the left or right door frame, depending on the direction in which the hinged door opens. Also, since the components other than the spacer member 50 are symmetrical, the left or right orientation can be accommodated by changing the mounting direction of the spacer member 50. The spacer member 50 is also provided with mounting holes 53 through which mounting screws 80 for fixing it to the door frame are inserted. In addition, a screw hole 54 is provided in the center of the spacer member 50.

[0038] Furthermore, in this embodiment, the spacer member 50 is equipped with a retaining means 55 for holding the main body member 10. This retaining means 55 is formed from a resin material in a substantially U-shape and has a pair of locking claws 55a that engage with locking recesses 17 on both side edges of the back wall 11 of the main body member 10. The retaining means 55 is also detachably attached to the spacer member 50. In this embodiment, the retaining means 55 is screwed into the screw holes 54 with screws 56. By using a resin material for the retaining means 55, if the door stopper device 100 is used while the door is closed, when the door is opened, the door hits the rotating member 20 of the door stopper device 100 and pushes outward, causing the retaining means 55 to elastically deform and the main body member 10 that it is holding to detach. This allows for emergency release without damaging the door stopper device 100.

[0039] The locking member 60 is, for example, a hollow cylindrical rod formed by winding a metal plate. Both ends of this locking member 60 are fitted into the mounting holes 24 of the rotating member 20, and one end of the biasing member 70 is locked to its center.

[0040] The biasing member 70 is made of a tension spring, with one end connected to the pivot shaft 30 and the other end connected to the locking member 60, thereby biasing the pivot member 20 in the direction of the pivot shaft 30. The biasing member may also be made of a material such as rubber.

[0041] The operating state of the door stopper device 100 in this embodiment will be described below with reference to Figure 6.

[0042] As shown in Figure 6(A), when the rotating member 20 is in the lateral position, the biasing force of the biasing member 70 causes the end face 20a of the rotating member 20 to press against the back wall 11 of the mounting member 10, and the two protrusions 22 provided on the end face 20a are fitted into the two recesses 15 of the main body member 10, thereby restricting the rotation of the rotating member 20. To rotate the rotating member 20 from the lateral position to the vertical position, the rotating member 20 is pulled toward the tip (in the direction of the arrow) to pull the protrusions 22 out of the recesses 15, and as shown in Figure 6(B), it is rotated in the direction of the arrow in this state (with the protrusions 22 pulled out of the recesses 15). When the rotating member 20 rotates to the vertical position, as shown in Figure 6(C), the biasing force of the biasing member 70 causes the end face 20a of the rotating member 20 to press against the end face portion 13 of the main body member 10, and the two protrusions 22 provided on the end face 20a to fit into the rotation restricting portion 16, thereby restricting the rotation of the rotating member 20. Conversely, the operation to rotate the rotating member 20 from the vertical position to the horizontal position is similar: the rotating member 20 is pulled towards the tip to release the rotation restriction and rotate. When the rotating member 20 is in the horizontal position, as described above, the biasing force of the biasing member 70 causes the end face 20a of the rotating member 20 to press against the back wall 11 of the main body member 10, and the two protrusions 22 provided on the end face 20a fit into the two recesses 15 of the main body member 10 and engage, thereby restricting the rotation of the rotating member 20.

[0043] As described above, the door stopper device 100 of this embodiment comprises a main body member 10, a rotating member 20, a rotating shaft 30, a cover member 40, a spacer member 50, a locking member 60, and a biasing member 70. The spacer member 50 has a mounting surface 51 for attachment to a door frame and a mounting surface 52 on the side opposite to the mounting surface 51 to which the main body member 10 is attached. In a cross-sectional view perpendicular to the longitudinal direction, the mounting surface 52 is formed to form a predetermined inclination angle α with respect to the mounting surface 51.

[0044] This eliminates the need for recessing in the door frame, allowing for easy installation. The rotating member can be positioned vertically when not in use and horizontally when in use. Therefore, it does not detract from the door's design and prevents accidents such as fingers getting caught. Furthermore, since there are no protruding parts on the door, safety is also improved. In addition, by changing the direction in which the spacer member 50 is attached to the door frame, one type of door stopper device 100 can be used for both left and right-hand operation.

[0045] Furthermore, the end face of the rotating member 20 supported by the pivot shaft 30 is provided with two protrusions 22, and the back wall 11 of the mounting member 10 is provided with two recesses 15 into which the two protrusions 22 fit when the rotating member 20 is in the lateral position, and a rotation restricting part 16 is provided that presses against the sides of the two protrusions 22 and restricts the rotation of the rotating member 20 when the rotating member 20 is in the vertical position. This ensures that the orientation of the rotating member 20 in both the lateral and vertical positions is reliably maintained, and when in the lateral position, pulling the rotating member 20 releases the protrusions 22 from the recesses 15, making it rotatable, and when in the vertical position, pulling the rotating member 20 releases the rotation restriction by the rotation restricting part 16, making it rotatable, thus allowing for easy rotation. In other words, malfunctions can be prevented by applying a pulling operation.

[0046] Furthermore, the cover member 40 has cushioning properties, which helps to mitigate impacts and prevent damage to the door from its tip. The cover member 40 has a substantially cylindrical surface and is formed by providing a notch 41 on the side of the open end of a hollow columnar body with an open end. The notch 41 is configured to overlap with the back wall 11 when the rotating member 20 is in a position parallel to the back wall 11 of the main body member 10. As a result, when not in use, it looks good and can be stored compactly.

[0047] In the above-described embodiment of the door stopper device 100, an example was described in which the main body member 10 is provided with two recesses 15 and the rotating member 20 is provided with two protrusions 22. However, the present invention is not limited to this. For example, the mounting member 10 may be provided with one recess 15 and the rotating member 20 may be provided with one protrusion 22. Alternatively, three or more recesses 15 and three or more protrusions 22 may be provided.

[0048] Furthermore, although the door stopper device 100 of the above-described embodiment was described in which the recess 15 is a square through-hole, the present invention is not limited thereto. For example, it may be a round through-hole, or a non-through square or round recess.

[0049] Furthermore, in the door stopper device 100 of the above-described embodiment, an example was described in which the rotation restricting portion 16 of the main body member 10 is composed of two recesses (or two through holes) formed in the end face portion 13, but the present invention is not limited to this. Other configurations that can restrict the rotation of the rotation member 20 may also be used.

[0050] Furthermore, although the above-described embodiment of the door stopper device 100 has been shown in which a recess 15 is provided on the back wall 11 of the main body member 10 and a protrusion 22 is provided on the rotating member 20, the present invention is not limited thereto. For example, a protrusion may be provided on the back wall of the main body member and a recess may be provided on the rotating member.

[0051] The following description of the hinged door device 200 equipped with the door stopper device 100 according to the present invention will be given with reference to Figures 7 to 11.

[0052] Figure 7 shows an example configuration of a hinged door device 200 equipped with the door stopper device 100 according to the present invention, and in Figure 7, the door stopper device 100 is shown in use (with the rotating member 20 rotated to the horizontal position). Figure 8 is a schematic top view showing the operating state of the door stopper device 100 in the hinged door device 200, (A) the stored state of the door stopper device 100, and (B) the used state of the door stopper device 100. Figure 9 is a schematic close-up view showing the used state of the door stopper device 100. Figure 10 shows the stored state of the door stopper device 100 in the hinged door device 200 (with the rotating member 20 rotated to the vertical position).

[0053] As shown in Figures 7-11, the hinged door device 200 comprises a door stop device 100 and a hinged door D that can be opened and closed around a vertical axis between door frames W erected on the left and right. In the hinged door device 200, the door stop device 100 is attached to the side frame W on the leading edge side of the hinged door. When the door D is open and the rotating member 20 of the door stop device 100 is rotated to the horizontal position to be used, when the door D closes, the leading edge of the door D comes into contact with the end of the rotating member 20 of the door stop device 100, stopping the rotation of the door D. This prevents the door D from closing completely, thus preventing accidents such as fingers getting caught.

[0054] Furthermore, as shown in Figure 11, in the hinged door device 200, if the door stopper device 100 is activated while the door D is closed, when the door D is opened, the door D will hit the rotating member 20 of the door stopper device 100 and be pushed outward, causing the retaining means 55 to deform and the retained main body member 10 to detach. This allows for emergency release and prevents damage to the door stopper device 100 and the door D.

[0055] In the door stopper device 100 of the embodiment described above, an example was described in which the spacer member 50 is equipped with a holding means 55 for holding the main body member 10, but the present invention is not limited to this. For example, as shown in Figure 12, the main body member may be attached to the spacer member with screws or the like.

[0056] Figure 12 schematically shows another configuration example of the door stopper device according to the present invention. As shown in Figure 12, the door stopper device 100A comprises a main body member 10A, a rotating member 20A, a rotating shaft 30A, a cover member 40A, and a spacer member 50A. The door stopper device 100A may also be provided with a locking member and a biasing member, similar to the door stopper device 100 described above.

[0057] The door stopper device 100A is configured such that the back wall 11A of the main body member 10A is fitted into a fitting recess 51A formed in the spacer member 50A and secured with a screw 52A. In this case, although there is no emergency release function like the door stopper device 100 described above, the number of parts is small and the configuration is simple, so costs can be kept down.

[0058] In the above-described embodiment of the hinged door device 200, an example was described in which the door stop device 100 is attached to the side frame W on the leading edge side of the hinged door, in which a door D that can be opened and closed around a vertical axis is provided between door frames W erected on the left and right sides. However, the present invention is not limited to this. If there is no side frame on the leading edge side, the door stop device 100 may be attached to the wall surface.

[0059] The present invention is not limited to the embodiments described above, and its technical scope includes various design modifications that do not depart from the gist of the invention as described in the claims. [Explanation of symbols]

[0060] 10, 10A Main body components 11, 11A Rear wall 12 Side wall 13 End section 14 Through holes 15 recesses 16 Rotation Control Unit 17 Locking recess 20, 20A Rotating Member 20a end face 21 Slotted holes 22 Convex part 23 Hollow part 24 mounting holes 30, 30A Rotary shaft 40, 40A Cover Member 40a open end 40b Sealed end 41 Notch 50, 50A Spacer Member 51 Mounting surface 51A Mating recess 52 Mounting surface 52A Screw 53 Mounting holes 54 screw holes 55 Retention means 55a Locking claw 56 screws 60 Locking member 70 Biasing member 80 Mounting screws 100, 100A Door stopper device 200 Hinged door device Door D W side frame

Claims

1. In a hinged door having a door that can be opened and closed around a vertical axis, A main body member having a rear wall and side walls, with through holes provided at mutually opposing positions on each of the side walls, A pivot shaft whose both ends are fitted into and supported by the through holes of the main body member, A rod-shaped rotating member that is rotatably supported by the aforementioned pivot shaft, The spacer member comprises a mounting surface for attachment to a door frame or wall surface, and a mounting surface on the side opposite to the mounting surface to which the main body member is attached. The door stopper device is characterized in that the spacer member is formed such that, in a cross-sectional view perpendicular to the longitudinal direction, the mounting surface forms a predetermined inclination angle with respect to the mounting surface.

2. The system further includes a holding means for holding the main body member. The door stopper device according to claim 1, characterized in that the retaining means is formed from a resin material in a substantially U-shape, has a pair of locking claws that engage with both side edges of the back wall of the main body member, is attached to the spacer member, and allows the main body member to be attached and detached.

3. The system further includes a biasing member, one end of which is connected to the pivot shaft and the other end of which is connected to the middle of the pivot member to bias the pivot member in the direction of the pivot shaft. The rotating member has an elongated hole through which the pivot shaft is inserted at one end, is rotatably supported by the pivot shaft, and is configured to slide along the elongated hole in the direction of the one end and the opposite direction, and has at least one protrusion or recess on the end face of the rotating member that is supported by the pivot shaft. The door stopper device according to claim 1 or 2, characterized in that the main body member is provided with at least one recess or protrusion on the back wall into which the protrusion or recess can be fitted, and at least one rotation restricting portion that engages with the protrusion or recess when the rotating member is in a position parallel to the back wall of the main body member and restricts the rotation of the rotating member.

4. The door stopper device according to claim 1 or 2, further comprising a cushioning cover member that covers at least a portion of the surface of the other end of the rotating member.

5. The door stopper device according to claim 4, characterized in that the cover member has a substantially cylindrical surface and is formed by providing a notch on the side surface of the open end of a hollow columnar body with one end open, and the notch is configured to overlap with the back wall when the rotating member is in a position parallel to the back wall of the main body member.

6. A hinged door device comprising a door stopper device according to claim 1 or 2, and a hinged door having a door that can be opened and closed around a vertical axis, wherein the door stopper device is attached to the door frame or wall surface on the leading edge side of the hinged door.

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