Door frame

Abstract

To provide a door frame having a latch receiver for a magnet latch for suppressing noise generated in use in a magnet latch mechanism.SOLUTION: The latch receiver 1 includes a body member 20 having a latch storage part 24 recessed for storing the tip of the latch bolt 70, a base member 30 having a U-shaped recessed part for storing the body member 20, and a decorative plate member 10 covering the surface of the body member 20 stored in the base member 30. The body member 20 includes a repulsion magnet 40 installed in a position on the upstream side of the latch housing part 24 in the closing direction of the door, and an attracting magnet 50 installed in a bottom surface part of the latch housing part 24. The repulsion magnet 40 repels the latch magnet 71. The attracting magnet 50 attracts the latching magnet 71 SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a magnetic latch mechanism that moves a latch by magnetic force, and a latch receiver for the magnetic latch that is used together with a latch lock. Door frame with Regarding. [Background technology]

[0002] A widely known magnetic latch mechanism has a latch lock attached to the door and a latch receiver (strike) attached to the door frame, and when the door is moved from an open to a closed state and the latch lock approaches the latch receiver, the latch (latch bolt) protrudes from the latch lock's lock case due to magnetic force.

[0003] In this type of magnetic latch mechanism, a permanent magnet is installed on either the latch lock side or the latch receiver side, or both. As a result, when the door approaches the latch receiver, the latch is attracted by magnetic force and protrudes, locking (idle locking).

[0004] With conventional magnetic latches, depending on the speed at which the door closes and the installation position of the lock box and strike housing, the latch bolt may protrude from the front of the opening as the door is closed and come into contact with the latch receiving component. When this happens, an unintended noise may be generated if the protruding latch bolt comes into contact with the latch receiving component. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2023-74676 Summary of the Invention [Problem to be solved by the invention]

[0006] Therefore, the present invention provides a latch receiver for a magnetic latch that suppresses noise generated during use in a magnetic latch mechanism. Door frame withThe purpose is to provide the following.

[0007] Patent Document 1 also describes a latch receiver for a magnetic latch that suppresses noise generated during use.

[0008] The latch receiver (1) described in Patent Document 1 (the symbols in parentheses are those described in Patent Document 1; the same applies below) is used in combination with a latch lock equipped with a latch that moves by magnetic force, and is equipped with a latch accommodating portion (40) that accommodates the protruding latch, and a rubber soundproofing member (45) that reduces noise caused by contact with the latch, located at a position overlapping the opening edge of the latch accommodating portion (40) and upstream of the latch accommodating portion (40) in the closing direction of the door to which the latch lock is attached. The main body member (11) is made of synthetic resin and is formed by insert molding with the soundproofing member (45) as an insert component. In other words, the main body member (11) and the soundproofing member (45) are formed integrally and inseparably, and cannot be separated without destruction.

[0009] According to the latch receiver (1) described in Patent Document 1, even if the latch protrudes from the front side of the latch accommodating portion (40), the latch comes into contact with the soundproofing member (45), thereby suppressing noise generation.

[0010] However, the latch receiver (1) described in Patent Document 1 requires insert molding to mold the main body member (11) and the soundproofing member (45) inseparably as a single unit. Furthermore, the tip of the latch bolt still hits the soundproofing member (45), making noise. Therefore, in the present invention, a latch receiver for a magnetic latch that suppresses noise generated during use without using a soundproofing member is provided. Door frame with to provide. [Means for solving the problem]

[0011] In order to solve the above problems, the present invention has the following features. The present invention is a door frame that can accept a latch bolt including a latch magnet, and includes a latch accommodating portion that is recessed to accommodate at least a portion of the latch bolt, a repulsive magnet installed in a position upstream of the latch accommodating portion in the door closing direction, and an attractive magnet installed in the latch accommodating portion. The repelling magnet repels the latching magnet. The attracting magnet attracts the latching magnet. The present specification also describes the following inventions. The present invention is a latch receiver mounted on a door frame for receiving a latch bolt including a latch magnet, the latch receiver comprising a body member having a latch receiving portion recessed to receive the tip of the latch bolt. The main body member includes a repulsive magnet installed at a position upstream of the latch accommodating portion in the door closing direction, and an attractive magnet installed on the bottom surface of the latch accommodating portion. The repelling magnet repels the latching magnet. The attracting magnet attracts the latching magnet.

[0012] Preferably, the repelling magnet is installed further outward from the door frame than the attracting magnet.

[0013] Preferably, the attracting magnet is disposed downstream in the closing direction of the door with respect to the vertical center of the latch accommodating portion.

[0014] Preferably, the main body member has a first recess for accommodating the repelling magnet and a second recess for accommodating the attracting magnet.

[0015] Preferably, the first recess is capable of accommodating the repelling magnet from the upstream side surface. The second recess is capable of accommodating the attracting magnet from the rear side of the main body member.

[0016] Preferably, when viewed from the side, the repelling magnet and the attracting magnet are arranged at different levels, and the repelling magnet is installed further outside the door frame than the position where the attracting magnet is installed.

[0017] In one embodiment, the repelling magnet is cylindrical and the attracting magnet is rectangular.

[0018] Preferably, the latch receiver further comprises a base member having a U-shaped recessed portion for accommodating the main body member, and a decorative plate member for covering the surface of the main body member accommodated in the base member.

[0019] Preferably, the latch receiver further includes a cam member sandwiched between the base member and the body member. It is preferable that the main body member be slidable relative to the base member by rotating the cam member through a hole provided in the main body member.

[0020] Preferably, edges of the cam member abut against opposing side surfaces of the base member. The diameter from the center of rotation of the cam member to the edge of the cam member is the same. When the cam member is rotated, the edge of the cam member comes into contact with the opposing side surface of the base member, and the center of rotation shifts, causing the main body member to slide relative to the base member.

[0021] Preferably, the upstream side of the latch accommodating portion is inclined toward the bottom surface.

[0022] The present invention also provides a magnetic latch mechanism comprising a latch bolt including a latch magnet and a latch receiver attached to a door frame for allowing the latch bolt to exit, the latch receiver being the latch receiver described above. [Effects of the Invention]

[0023] According to the present invention, a latch receiver for a magnetic latch that suppresses noise generated during use is provided. Door frame with is provided.

[0024] When the door is closed, the latch magnet in the latch bolt repels the repulsion magnet, so before the tip of the latch bolt is accommodated in the latch housing, ,above This prevents noise from being generated by contact with the flow side.

[0025] By having the repulsive magnet on the outside of the door frame, the latch bolt is repelled reliably when the door is closed, preventing the latch bolt from coming out before reaching the latch accommodating portion.

[0026] By shifting the attracting magnet downstream, the repulsive force of the repelling magnet can be reliably exerted.

[0027] By making the repelling magnet cylindrical and the attracting magnet rectangular, reliable repulsion and attracting can be achieved. It is preferable that the repelling magnet is smaller than the attracting magnet.

[0028] By using the base member and the decorative member, the main body member can be securely installed in the door frame.

[0029] The cam member allows for fine adjustment of the position of the latch housing portion.

[0030] By inclining the upstream side of the latch accommodating portion toward the bottom surface, even if the latch bolt protrudes early, the tip of the latch bolt can be made to follow the inclination, thereby reducing noise.

[0031] These and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. [Brief explanation of the drawings]

[0032] [Figure 1] Figure 1(a) is a front view of the latch receiver 1, Figure 1(b) is a left side view of the latch receiver 1, Figure 1(c) is a right side view of the latch receiver 1, Figure 1(d) is a plan view of the latch receiver 1, Figure 1(e) is a bottom view of the latch receiver 1, Figure 1(f) is a back view of the latch receiver 1, and Figure 1(g) is a perspective view of the latch receiver 1. [Figure 2] FIG. 2 is an exploded perspective view of the latch receiver 1. FIG. [Figure 3]3 is an exploded perspective view of the latch receiver 1. In FIG. 3, a state in which the repulsive magnet 40, the attractive magnet 50, and the cam member 60 are set on the main body member 20 is shown. [Figure 4] Figure 4 is a diagram for explaining the adjustment of the position of the main body member 20 relative to the base member 30 by rotating the cam member 60. Figure 4(a) is a diagram before the cam member 60 is rotated, Figure 4(b) is a diagram of the state in Figure 4(a) with the decorative plate member 10 placed thereon, Figure 4(c) is a diagram after the cam member 60 has been rotated, and Figure 4(d) is a diagram of the state in Figure 4(c) with the decorative plate member 10 placed thereon. [Figure 5] FIG. 5(a) is a front view of the main body member 20, and FIGS. 5(b) to 5(e) are perspective views of the main body member 20 from four directions. [Figure 6] FIG. 6 is a perspective view of the latch lock 2. [Figure 7] FIG. 7 is a cross-sectional view showing the movement of the latch 70 in the latch lock 2 when the door is closed. DETAILED DESCRIPTION OF THE INVENTION

[0033] As shown in FIG. 2, the latch receiver 1 in one embodiment of the present invention comprises a decorative plate member 10, a main body member 20, a base member 30, a repelling magnet 40, an attracting magnet 50, and a cam member 60. 3, the repelling magnet 40 and the attracting magnet 50 are housed in the main body member 20. The cam member 60 is provided on the back surface of the main body member 20.

[0034] In the state shown in FIG. 3, the main body member 20 is housed in the U-shaped recess of the base member 30. Then, the portions (see FIG. 3) slightly protruding from the rear surfaces of the two holes 11, 11 provided at the top and bottom of the decorative plate member 10 are fitted into the insides of the two holes 31, 31 provided in the base member 30. In this way, the latch receiver 1 is assembled.

[0035] As shown in FIG. 5, the main body member 20 has a latch accommodating portion 24 into which the tip of the latch bolt 70 fits when the door is closed. The main body member 20 is made of, for example, resin, and has a first recess 22 for receiving the repelling magnet 40 and a second recess 23 for receiving the attracting magnet 50.

[0036] 2, the repelling magnet 40 is shown as being cylindrical, but is not limited to this. The attracting magnet 50 is shown as being rectangular, but is not limited to this.

[0037] For example, if the magnetic force of the repulsive magnet 40 is too strong and generates a repulsive force that exceeds the attractive force of the attracting magnet 50, the tip of the latch bolt 70 will not enter the latch accommodating portion 24. Conversely, if the magnetic force of the attracting magnet 50 is too strong and generates an attractive force that exceeds the repulsive force of the repulsive magnet 40, the tip of the latch bolt 70 will enter the latch accommodating portion 24 too quickly, causing noise. Therefore, the magnetic forces of the repulsive magnet 40 and the attracting magnet 50 are set to achieve a good balance between the repulsive force and the attractive force.

[0038] The recess 22 is a recess provided on the side of the main body member 20. The recess 22 is provided at a position upstream of the latch accommodating portion 24 in the closing direction of the door to which the latch lock 2 is attached, and is provided on the decorative panel member 10 side. A repulsion magnet 40 is placed in the recess 22. To prevent the repulsion magnet 40 from coming out unintentionally, the recess 22 may be provided with an elastically deformable protrusion to prevent it from returning, but this is not limited to this.

[0039] The recess 23 is provided at a position shifted downstream in the door closing direction from the vertical center of the latch accommodating portion 24, and is provided on the rear side of the latch accommodating portion 24. The repulsive magnet 40 and the attractive magnet 50 are provided at a distance from each other on the upstream and downstream sides of the vertical center of the latch accommodating section 24. The position where the repulsive magnet 40 is provided is closer to the decorative board member 10 than the position where the attractive magnet 50 is provided. In other words, the repulsive magnet 40 is provided on the outer side of the door frame than the position where the attractive magnet 50 is provided. The repulsive magnet 40 is attached in a direction that repels the latch magnet 71 provided inside the latch bolt 70 . The attracting magnet 50 is attached in a direction that attracts the latching magnet 71 provided inside the latch bolt 70 . For example, if the tip side of the latch magnet 71 is an N pole, the repelling magnet 40 on the decorative plate member 10 side will be an N pole, and the attracting magnet 50 on the decorative plate member 10 side will be an S pole.

[0040] As shown in Fig. 5, a position adjustment hole 21 is formed in the bottom of the latch accommodating portion 24. As shown in Fig. 2, a screw head 61 is provided on the cam member 60. The screw head 61 fits into the position adjustment hole 21. This makes it possible to rotate the screw head 61 from the latch accommodating portion 24 side.

[0041] As shown in Fig. 2, side portions 32 and 33 rise slightly from the bottom surface of the U-shape of the base member 30. As shown in Fig. 1(b) and Fig. 1(g), a cam member 60 abuts against the side portions 32 and 33. The screw head 61 of the cam member 60 serves as the center of rotation, and the center of the screw head 61 is located at an eccentric position where the diameter from the center of rotation to the edge of the cam member 60 is always the same.

[0042] Therefore, when the screw head 61 is rotated from the state shown in Figure 4(a), the cam member 60 rotates while abutting against the side portions 32 and 33, causing the main body member 20 to slide relative to the base member 30. With this structure, the position of the latch accommodating portion 24 can be adjusted with respect to the decorative plate member 10, as can be seen by comparing FIGS. 4(b) and 4(d).

[0043] The latch receiver 1 having the above structure is attached to a door frame, and the movement of the latch bolt 70 when the door to which the latch lock 2 is attached is opened or closed will be described with reference to FIG.

[0044] As shown in Figure 7(a), when the door is closed, the latch magnet 71 inside the latch bolt 70 repels the repulsion magnet 40. Therefore, the attractive force of the attraction magnet 50 prevents the latch bolt 70 from protruding before the door is completely closed. This prevents the latch bolt 70 from hitting the edge of the latch accommodating portion 24 and generating noise.

[0045] As shown in FIG. 7(b), when the door is almost closed, the latch magnet 71 is released from the repulsive force of the repulsion magnet 40. Then, as shown in FIG. 7(c), the latch magnet 71 is attracted to the attraction magnet 50, causing the latch bolt 70 to protrude, resulting in an idling state.

[0046] As shown in Figure 7, by providing a slope 25 on the upstream edge of the latch accommodating section 24, even if the latch bolt 70 protrudes early, the tip of the latch bolt 70 can move along the slope 25, thereby reducing the sound of the latch bolt 70 hitting the latch receiver 1.

[0047] In the above embodiment, the cam member 60 allows the position of the latch accommodating portion 24 to be adjusted, but in the present invention, the latch accommodating portion 24 does not have to be position adjustable. Therefore, the cam member 60 is not an essential component. In this case, holes can be provided at the top and bottom of the main body member 20, and the decorative panel member 10 and the main body member 20 can be attached to the door frame through the holes, so the base member 30 is also not an essential component.

[0048] In the above embodiment, the decorative plate member 10 is placed over the front surface of the main body member 20, but if the main body member 20 has a configuration equivalent to that of the decorative plate member 10, the decorative plate member 10 is not necessary. Therefore, the decorative plate member 10 is not an essential component in the present invention.

[0049] Therefore, the latch receiver 1 of the present invention Door frame with teeth ,La Chibolt's At least some The decorative plate member 10 and the base member 30 are not essential components of the present invention.

[0050] Although the present invention has been described in detail above, the above description is merely illustrative of the present invention in all respects and is not intended to limit its scope. It goes without saying that various improvements and modifications can be made without departing from the scope of the present invention. Each of the constituent elements of the invention disclosed in this specification is considered to be an independent, stand-alone invention. Inventions that combine the constituent elements in any manner are also included in the present invention. The specific expressions in this specification are merely examples, and the present invention also includes those that conceptualize these exemplary expressions. [Industrial Applicability]

[0051] The present invention provides a latch receiver. Door frame with and is industrially applicable. [Explanation of symbols]

[0052] 1 Latch holder 2 latch lock 10 Decorative panel materials 11 holes 20 Main body member 21 Position adjustment hole 22 Recess (first recess) 23 Recess (second recess) 24 Latch housing 25 Incline 30 Foundation members 31 holes 32 Side part 33 Side part 40 Repulsive Magnet 50 Attraction magnet 60 Cam member 61 Screw head 70 Latch bolt 71 Latch magnet

Claims

[Claim 1] A door frame capable of receiving a latch bolt including a latch magnet, a latch receiving portion recessed to receive at least a portion of the latch bolt; a repulsive magnet installed at a position upstream of the latch accommodating portion in the door closing direction; an attracting magnet installed in the latch accommodating portion, the repulsive magnet repels the latch magnet, The door frame is characterized in that the attraction magnet is attracted to the latch magnet.

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