Door stop

Abstract

To provide a door stop capable of surely preventing a stopper piece and a door stop body from being separated from each other by rebound.SOLUTION: An engaging piece 5 composed of a leaf spring for forming an engaging part 51 is arranged in a door stop body 1, and an engaged part 40 for engaging with the engaging part 51 of the engaging piece 5 when the door reaches a predetermined position when opening the door, is formed in a stopper piece 4.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a door stop. [Background technology]

[0002] Conventionally, door stops have been proposed and put into practical use in which, when the door reaches a predetermined position during opening, a stopper piece is caused to protrude from the floor surface by the magnetic attraction action of a magnet and abut against the door side, preventing the door from opening any further, and the door can be maintained in an open state by a gate stopper part (see, for example, Patent Documents 1 and 2). This door stop consists of a door stop body that is attached to the door side and has a magnet and a gate stopper, and a stopper base that is attached to the floor and has a stopper piece that is swingable and protrudes from the floor.When the door reaches a set position during opening, the magnetic attraction of the magnet causes the stopper piece to protrude from the floor and come into contact with the door stop body, preventing the door from opening any further.In addition, by selectively engaging the gate stopper with the stopper piece, the door can be prevented from closing even if a strong force such as a strong wind acts on it, and the door can be kept open.

[0003] However, with the door stops disclosed in Patent Documents 1 and 2 (and other conventional door stops as well), if the door is opened forcefully and moves at a high speed, the door may rebound, causing the stopper piece abutting the door stop body to lose its magnetic attraction to the magnet attached to the door stop body, and the two may become separated. In this case, it is necessary to open the door again in order to maintain the open state.

[0004] In view of the problems with bouncing that the door stops disclosed in Patent Documents 1 and 2 have, the present applicant previously proposed a door stop that prevents the stopper piece and the magnet mounting piece from separating due to bouncing (see Patent Document 3). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-90162 [Patent Document 2] Japanese Patent Application Laid-Open No. 2004-263377 [Patent Document 3] Patent Publication No. 2021-147972 Summary of the Invention [Problem to be solved by the invention]

[0006] Incidentally, the door stop disclosed in Patent Document 3, as shown in FIG. 5, is provided with sliding resistance imparting portions 71, 41 on the contact surfaces of the magnet mounting piece 7 and the stopper piece 4 where the magnet mounting piece 7 and the stopper piece 4 of the door stop come into contact, thereby preventing the stopper piece 4 and the magnet mounting piece 7 from separating due to bouncing. However, it is expected that this sliding resistance alone will not be enough to prevent the stopper piece 4 and the magnet mounting piece 7 from separating if the door moves at a high speed when opening, as bouncing will occur.

[0007] In view of the problems with the conventional door stops described above, the present invention aims to provide a door stop that has the advantages of the door stops proposed in Patent Documents 1 to 3, such as making the protruding height from the floor as low as possible to make the floor barrier-free, and being able to reliably stop the door in a fixed position and maintain the open state, while also more reliably preventing the stopper piece from separating from the door stop body due to rebound. [Means for solving the problem]

[0008] In order to achieve the above object, the door stop of the present invention comprises a door stop body with a magnet arranged thereon and attached to the door side, and a stopper base attached to the floor surface and with a stopper piece arranged to swing so that it protrudes from the floor surface, and when the door reaches a predetermined position during door opening, the stopper piece protrudes from the floor surface due to the magnetic attraction action of the magnet and abuts against the door side, preventing the door from opening any further. In this door stop, an engaging piece made of a leaf spring with an engaging portion formed thereon is arranged on the door stop body, and an engaged portion that engages with the engaging portion of the engaging piece is formed on the stopper piece when the door reaches a predetermined position during door opening.

[0009] In this case, the engaging portion of the engaging piece may be an upwardly convex curved or bent portion, and the engaged portion formed on the stopper piece may be a rectangular hole.

[0010] The engaged portion formed on the stopper piece can also serve as a locked portion with which the locking portion of the tilt stopper is locked. [Effects of the Invention]

[0011] According to the door stop of the present invention, the protruding height from the floor surface is kept as low as possible in order to make the floor barrier-free, and the door can be reliably stopped in a fixed position and maintained in an open state. Furthermore, an engaging piece made of a leaf spring with an engaging portion is arranged on the door stop body, and the engaging portion of the engaging piece engages when the door reaches the specified position during opening. This reliably prevents the stopper piece from coming off the door stop body due to rebound, even if the door moves at a high speed during opening, and the door can be stopped in a fixed position and maintained in an open state. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a perspective view showing an external appearance of an embodiment of a door stop of the present invention; [Figure 2] FIG. 10 is an explanatory diagram showing the operating state of the door stopper, where (a) shows the state when the locking part of the gate stopper is unlocked, and (b) shows the state when the locking part of the gate stopper is locked. [Figure 3] In the explanatory diagrams of each part of the door stop, (a1) shows the state when the engaging part of the engaging piece is disengaged, (a2) shows the state when the engaging part of the engaging piece is engaged, (b) is a rear view of the door stop body, (c) shows the gate stopper part, and (d) shows the stopper piece when the engaging part of the engaging piece is engaged. [Figure 4] 10A and 10B are explanatory diagrams showing the operating state of a modified embodiment of the door stopper, in which FIG. 10A shows the state when the locking portion of the gate stopper is unlocked, and FIG. 10B shows the state when the locking portion of the gate stopper is locked. [Figure 5] 10 is an explanatory diagram showing the operating state of a door stop provided with a sliding resistance imparting portion. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the door stop of the present invention will be described with reference to the drawings.

[0014] 1 to 3 show an embodiment of the door stop of the present invention. This door stop consists of a door stop main body 1 equipped with a magnet 3 that is attached to the door side, and a stopper base 2 that is attached to the floor and has a stopper piece 4 that is swingably arranged so that it protrudes from the floor surface; when the door reaches a predetermined position during opening, the magnet 3 causes the stopper piece 4 to protrude from the floor surface due to the magnetic attraction action of the magnet 3, and come into contact with the door stop main body 1 attached to the door side, preventing the door from opening any further; an engaging piece 5 made of a leaf spring with an engaging portion 51 formed thereon is attached to the door stop main body 1, and an engaged portion 40 that engages with the engaging portion 51 of the engaging piece 5 is formed on the stopper piece 4 when the door reaches a predetermined position during opening.

[0015] Here, the engagement piece 5 is made up of two parallel extending leaf springs attached at a distance from the door stop body 1 so as to protrude horizontally, and an engagement portion 51 is formed at the tip of each leaf spring. The engaging portion 51 consists of an upwardly convex curved portion (or an upwardly convex bent portion as in the modified embodiment shown in Figure 4), and is designed to engage with the engaged portion 40 consisting of a rectangular hole formed in the stopper piece 4.

[0016] In addition, the engaged portion 40 consisting of a rectangular hole formed in the stopper piece 4 also serves as an engaged portion to which the engaging portion 61 of the gate stopper portion 6, which is attached to the door stop main body 1 via the shaft portion 8 so as to be able to swing, is engaged. As a result, the engaging portion 40 consisting of a rectangular hole formed in the stopper piece 4 is engaged with the locking portion 61 of the tilt stopper portion 6 between the engaging portion 51 of the engaging piece 5 consisting of two parallel extending leaf springs, as shown in Figure 3(d).

[0017] With this door stop, the stopper piece 4 of the stopper base 2 does not protrude from the floor surface except when the door is open, preventing tripping and making the floor barrier-free. When the door is opened and reaches the position of the stopper base 2, the magnetic attraction of the magnet 3 causes the stopper piece 4 to protrude from the floor surface and come into contact with the door stop body 1 attached to the door side, preventing the door from opening any further, thereby reliably stopping the door in a fixed position and maintaining the open state. In addition, by swinging the gate stopper part 6, the locking part 61 of the gate stopper part 6 engages with the engaged part 40 consisting of a rectangular hole formed in the stopper piece 4, preventing the door from closing even when a strong force such as a strong wind acts on the door, and the door can be maintained in an open state.

[0018] Furthermore, an engaging piece 5 made of a leaf spring with an engaging portion 51 formed thereon is disposed on the door stop body 1, and when the door reaches a predetermined position during opening, an engaged portion 40 with which the engaging portion 51 of the engaging piece 5 engages is formed on the stopper piece 4. By doing so, when the door is opened and reaches the position of the stopper base 2, the magnetic attraction action of the magnet 3 causes the stopper piece 4 to protrude from the floor surface and come into contact with the door stop body 1 attached to the door side, causing it to bounce back. However, because the engaging portion 51 of the engaging piece 5 engages with the engaged portion 40 formed on the stopper piece 4, it is possible to reliably prevent the stopper piece 4 and the door stop body 1 from separating due to the rebound, even if the door moves at a high speed during opening, and the door can be stopped in a fixed position and maintained in an open state.

[0019] In addition, the engagement force of the engaging portion 51 of the engaging piece 5 with the engaged portion 40 formed on the stopper piece 4 can be given the function of preventing the door from closing even if a strong force such as a strong wind acts on the door by adjusting the elasticity (spring strength) of the engaging piece 5 made of a leaf spring and the shape of the engaging portion 51.

[0020] The door stop of the present invention has been described above based on its embodiments, but the present invention is not limited to the configuration described in the above embodiments, and the configuration can be changed as appropriate within the scope of the spirit of the present invention. [Industrial Applicability]

[0021] The door stop of the present invention provides a door stop that can more reliably prevent the stopper piece and the door stop body from separating due to rebounding.It has the advantage of making the protruding height from the floor surface as low as possible to make the floor barrier-free, and of being able to reliably stop the door at a fixed position and maintain the open door state, and further has the characteristic of being able to prevent the stopper piece and the door stop body from separating due to rebounding, so it can be used widely for door stops. [Explanation of symbols]

[0022] Unit per unit 2 Stopper base 3. Magnet 4 Stopper piece 40 Engaged portion (rectangular hole) 41 sliding resistance applying part 5 Engagement piece 51 Engagement portion 6 Tilt stopper 61 Locking part 7 Magnet mounting piece 71 Sliding resistance applying part 8 Shaft

Claims

1. This door stop consists of a door stop body with a magnet arranged on the door side, and a stopper base that is attached to the floor and has a stopper piece that is swingably arranged so that it protrudes from the floor surface, and when the door reaches a predetermined position during door opening, the stopper piece protrudes from the floor surface due to the magnetic attraction action of the magnet and abuts against the door side, preventing the door from opening any further.The door stop is characterized in that an engaging piece made of a leaf spring with an engaging portion formed thereon is arranged on the door stop body, and an engaged portion that engages with the engaging portion of the engaging piece is formed on the stopper piece when the door reaches a predetermined position during door opening.

2. 2. The door stop according to claim 1, wherein the engaging portion of the engaging piece is an upwardly convex curved or bent portion, and the engaged portion formed on the stopper piece is a rectangular hole.

3. 3. The door stop according to claim 1, wherein the engaged portion formed on the stopper piece also serves as an engaged portion to which an engaging portion of the gate stopper is engaged.

Images