Door catch closing hinge

Abstract

To provide a hinge capable of spontaneous closure a door and keeping an opened state.SOLUTION: This hinge is formed by pairing a door side hinge A and a column side hinge B, and is constituted so that the door is opened and closed by inserting a support rod 3 of the column side hinge B into a cylindrical part 11 of the door side hinge A. A track groove 12 is provided on a side surface of a cylindrical portion 11 of the door-side hinge A, the track groove 12 includes an oblique groove 4 formed obliquely with respect to an axial direction of the cylindrical portion 11 and a stationary groove 5 recessed upward at a position below the oblique groove 4, a protruding rod 13 is provided on the support tool 3 of the column-side hinge B, and the protruding rod 13 is movable along the track groove 12.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a hinge that can naturally close and hold open doors for general buildings. [Background technology]

[0002] Conventionally, doors have been opened and closed by manually pushing them open and then pulling them forward to close them. There is a device for automatically closing doors, as shown in Japanese Utility Model Application Publication No. 06-071841, but it is quite expensive. There is also a device for stopping the door in a stationary state, which is attached to the floor (Japanese Patent Publication No. 2010-048053). However, it takes time and effort to close the door. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Jipkaihei 06-071841 [Patent Document 2] Patent Publication No. 2010-048053 Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention provides a hinge that solves such problems. [Means for solving the problem]

[0005] The hinge of the present invention is a pair of door-side hinge A and pillar-side hinge B, and is configured so that the support rod 3 of the pillar-side hinge B is inserted into the cylindrical portion 11 of the door-side hinge A to open and close the door. A track groove 12 is provided on the side of the cylindrical portion 11 of the door-side hinge A, and the track groove 12 includes a diagonal groove 4 formed diagonally with respect to the axial direction of the cylindrical portion 11, and a stationary groove 5 recessed upward below the diagonal groove 4. The support rod 3 of the pillar-side hinge B is provided with a protruding rod 13, and the protruding rod 13 is movable along the track groove 12. The inclination angle of the oblique groove 4 is preferably 30 to 45 degrees from the front in the direction of opening the door (60 to 45 degrees relative to the axial direction of the cylindrical portion 11). If the angle is less than 30 degrees (more than 60 degrees relative to the axial direction of the cylindrical portion 11), it will be difficult for the door to close automatically. If the angle is more than 45 degrees (less than 45 degrees relative to the axial direction of the cylindrical portion 11), it will be difficult to open the door. This is because the friction between the oblique groove 4 and the protruding rod 13 increases, making it difficult to open.

[0006] In addition, in the present invention, the protruding rod 13 is composed of a track pin 7 inserted through a rotating ring 8 and a retaining ring 9, and the protruding rod 13 is formed by attaching the track pin 7 to the track pin hole 6 provided in the support rod 3 of the pillar side hinge B, and the protruding rod 13 is configured so that the rotating ring 8 can rotate and runs in the diagonal groove 4, and it is preferable that the retaining ring 9 is provided outside the rotating ring 8 to prevent the rotating ring 8 from coming off. Furthermore, in the present invention, it is preferable that the oblique groove 4 has an inclination that rises in the door opening direction. [Effects of the Invention]

[0007] The hinge of the present invention is inexpensive and has a simple structure, yet allows the door to close naturally and also to remain open. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a front view of a hinge according to the present invention. [Figure 2] 1 is an exploded perspective view of a hinge according to the present invention; [Figure 3] 1 is a static view of the hinge of the present invention when the door is opened 90 degrees. DETAILED DESCRIPTION OF THE INVENTION

[0009] FIG. 1 is a front view of a hinge according to a first embodiment of the present invention, and FIG. 2 is an exploded perspective view thereof. As shown in the figure, the door-side hinge A and pillar-side hinge B, which serve as the base, are paired together to form a single unit. Door-side stop plate 1 is connected to door-side hinge A, and pillar-side stop plate 2 is connected to pillar-side hinge B. A track groove 12 is provided in the cylindrical portion 11 of door-side hinge A. This track groove 12 has a diagonal groove 4 formed at an angle to the axial direction of the cylindrical portion 11. Below this diagonal groove 4, a stationary groove 5 is formed, recessed upward. Furthermore, a track hole 6 is provided in the support rod 3 of pillar-side hinge B, into which a protruding rod 13 (with a track pin 7, rotating ring 8, and retaining ring 9 set) is screwed. This constitutes one set of hinges.

[0010] FIG. 3 is a diagram showing the state of the first embodiment of the present invention when the door is opened by 90 degrees. The cylindrical portion 11 of the door-side hinge A has a diagonal groove 4 formed halfway around the circumference of the cylindrical portion 11 at a 30-degree angle (60 degrees relative to the axial direction of the cylindrical portion 11) from the front in the direction of door opening, allowing the door to be opened up to 180 degrees. This diagonal groove 4 is 4 millimeters wide. Above it is a semicircular recessed stationary groove 5 with a diameter of 3.5 millimeters. The diagonal groove 4 and stationary groove 5 are called track grooves 12. Additionally, a 3mm threaded raceway hole 6 is provided in the support rod 3 of pillar-side hinge B. A raceway pin 7, fitted with a rotating ring 8 and a retaining ring 9, is screwed into this hole. When the door is opened, a protruding rod 13 moves along a raceway groove 12 formed in door-side hinge A. A rotating ring 8 is pushed through the raceway pin 7 of the protruding rod 13, and as this rotating ring 8 turns, the door opens easily and smoothly. The protruding rod 13 then fits into the stationary groove 5, allowing it to stay in place. When the door is to be closed, the door is pulled up to release the protruding rod 13 that is fitted into the stationary groove 5. The rotating ring 8 and the door's own weight then allow it to close easily.

[0011] This is described in more detail below. This hinge is composed of a door-side hinge A and a pillar-side hinge B. The cylindrical portion 11 of the door-side hinge A has a 4 mm wide, 30 mm long diagonal groove 4 at a 30-degree angle (60 degrees relative to the axis of the cylindrical portion 11), and a 3.5 mm semicircular recess above the groove as a resting groove 5. In this example, the resting groove 5 is located where the door will stop when opened 90 degrees. The support rod 3 of the pillar-side hinge B has a diameter of π8 mm (8 mm) and a length of 30 mm. The center of the support rod 3 has a threaded raceway hole 6 with a diameter of π3 mm and a depth of 3 mm. A raceway pin 7 with a length of 15 mm, a diameter of 3 mm, and a threaded tip is screwed into this raceway hole 6. A rotating ring 8 and a locking ring 9 are installed. The door-side hinge A is attached to the door, and the pillar-side hinge B is attached to the pillar. To open or close the door, the door is slightly lifted and then pushed open. The door can be opened easily and smoothly thanks to the rotating ring 8. When the track pin 7 (ejector rod 13) enters the stationary groove 5 along the way, it stops at that position and remains stationary. When the door knob is pulled in gently, the rotating ring 8 allows the door to close easily and naturally due to its own weight.

[0012] In this way, the hinge of the first embodiment of the present invention can remain stationary in a 90-degree open position when the door is to be left open, and can also eliminate the door being left half-open and always remain closed. In other words, the present invention is a hinge that ensures that the door closes automatically, and can also maintain the door in a stationary position when it is necessary to keep the door open.

[0013] In the first embodiment, the raceway groove 12 is shown as a hole-like groove penetrating the wall of the cylindrical portion 11. The cylindrical portion 11 may have a groove-like structure in which the inner wall thereof is recessed. The position of the stop groove 5 provided in the diagonal groove 4 is set to a position where the door stops in the 90 degree open position. However, the present invention is not limited to this, and the position of the rest groove 5 may be adjusted so that the door stops in the open position of 120 degrees or 80 degrees, for example. [Explanation of symbols]

[0014] A Door side hinge B Pillar side hinge 1 Door side stop plate 2 Pillar side stop plate 3 Support rod 4 Diagonal grooves 5 Stationary groove 6 Raceway hole 7 Track pin 8 rotating rings 9 Retaining ring 11 Cylindrical part 12 raceway grooves (4 diagonal grooves, 5 stationary grooves) 13 Protruding rod (orbital pin 7, rotating ring 8, retaining ring 9)

Claims

1. A hinge is a pair of a door-side hinge A and a pillar-side hinge B, and the support rod 3 of the pillar-side hinge B is inserted into the cylindrical portion 11 of the door-side hinge A to open and close the door. A track groove 12 is provided on the side surface of the cylindrical portion 11 of the door-side hinge A, The raceway groove 12 includes an oblique groove 4 formed obliquely with respect to the axial direction of the cylindrical portion 11, and a stationary groove 5 recessed upward below the oblique groove 4, The hinge is characterized in that the support rod 3 of the pillar-side hinge B is provided with a protruding rod 13, and the protruding rod 13 is movable along the track groove 12.

2. The protruding rod 13 is composed of a rotating ring 8 and a raceway pin 7 inserted through a stop ring 9, The protruding rod 13 is formed by attaching the track pin 7 to the track pin hole 6 provided in the support rod 3 of the pillar-side hinge B, The protruding rod 13 is configured so that the rotary ring 8 can rotate, and travels along the oblique groove 4.

2. A hinge according to claim 1, wherein said retaining ring (9) is provided outside said rotating ring (8) to prevent said rotating ring (8) from coming off.

3. 3. The hinge according to claim 1, wherein the oblique groove (4) is inclined upward in the door opening direction.

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