Magnetic latch latch holder

The latch receiver with an integrated elastic noise suppression member addresses noise and damage issues in magnetic latches by absorbing the latch bolt's impact, ensuring silent and durable operation.

JP7779511B2Active Publication Date: 2025-12-03WEST INX
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Patent Information

Application Number
JP2021187720
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-11-18
Publication Date
2025-12-03
Estimated Expiration
2041-11-18

AI Technical Summary

Technical Problem

Conventional magnetic latches can generate unintended noise due to the latch bolt protruding and contacting metal components during door closure, and may cause damage.

Method used

A latch receiver with a noise suppression member made of elastic material, integrated with the latch accommodating portion, positioned to overlap and extend from upstream to downstream of the latch opening, reducing noise and preventing damage.

Benefits of technology

Suppresses noise generation and prevents damage by absorbing the impact of the latch bolt, ensuring silent operation and longevity of the latch mechanism.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide a latch retainer for a magnet latch capable of suppressing noise generated during use.SOLUTION: A latch retainer 1 for the magnet latch is used in combination with a latch lock equipped with a latch that moves by a magnetic force. The latch retainer 1 for the magnet latch having a latch storage part 40 in which the protruded latch is stored includes a noise suppression component 45 for reducing the noise generated by contact with the latch, at a position overlapping an opening edge of the latch storage part 40 and / or a position on an upstream side of the latch storage part 40 in a closing direction of a door in which the latch lock is installed.SELECTED DRAWING: Figure 2
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Description

[Technical Field]

[0001] The present invention relates to a latch receiver for a magnetic latch used together with a latch lock in a magnetic latch structure that moves a latch by magnetic force. [Background technology]

[0002] A widely known magnetic latch structure has a latch lock attached to the door and a latch receiver 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 lock case of the latch lock due to magnetic force. In this type of magnetic latch structure, a permanent magnet is installed on either the latch lock side or the latch receiver side. For example, if a permanent magnet is installed on the latch receiver side, when the door approaches the latch receiver, the latch is attracted by magnetic force and protrudes, locking (idle locking). In other words, a permanent magnet is installed on either the latch lock side or the latch receiver side, and a part that is attracted to this permanent magnet is installed on the other side, so the latch is operated by magnetic force. An example of such a magnetic latch structure (magnetic latch) is the magnetic latch lock disclosed in Patent Document 1.

[0003] In the magnetic latch lock of Patent Document 1, as the door is closed, the latch bolt protrudes from the lock box, and part of the latch bolt enters the housing through an opening formed in the housing on the strike side (latch receiving side), thereby locking the door. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 08-13884 Summary of the Invention [Problem to be solved by the invention]

[0005] However, with conventional magnetic latches, depending on the speed at which the door closes and the installation position of the lock box and strike side housing, the latch bolt could protrude in front of the opening as the door was closing and come into contact with the strike side component. Furthermore, when the latch bolt is a metal member, as in the magnetic latch lock of Patent Document 1, if the protruding latch bolt comes into contact with the metal member on the strike side, an unintended loud noise may be generated. In other words, conventional magnetic latches have room for improvement in terms of suppressing noise generated during use.

[0006] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a latch receiver for a magnetic latch that can suppress noise generated during use. [Means for solving the problem]

[0007] One aspect of the present invention to solve the above problem is a latch receiver for a magnetic latch used in combination with a latch lock having a latch that moves by magnetic force, the latch receiver having a latch accommodating portion in which the protruding latch is accommodated, and a position overlapping with an opening edge of the latch accommodating portion, and, The noise suppression member is located upstream of the latch accommodating portion in the closing direction of the door to which the latch lock is attached, and reduces noise caused by contact with the latch. The noise suppression member has a series of portions extending from a position upstream of the latch accommodating portion in the closing direction of the door, through a position overlapping with the opening edge of the latch accommodating portion, to the inside of the latch accommodating portion, and the outer surface of the series of portions is a series of surfaces formed by a single member. The noise suppression member has elasticity. The latch receiver for a magnetic latch is characterized by the above.

[0008] According to this aspect, even if the latch protrudes from the front side of the latch accommodating portion, the latch comes into contact with the noise suppression member, thereby suppressing the generation of noise.

[0009] In the above aspect, the noise suppression member has elasticity. do.

[0010] In this manner, even if the latch is made of a metal member, no sound is generated when metal members collide with each other, noise generation can be suppressed, and damage to the latch caused by contact with the latch receiver can be prevented.

[0011] Another aspect of the present invention is a latch receiver for a magnetic latch used in combination with a latch lock having a latch that moves by magnetic force, the latch receiver having a latch accommodating portion for accommodating the protruding latch, and a noise suppression member for reducing noise generated by contact with the latch at a position overlapping the edge of the opening of the latch accommodating portion and at a position upstream of the latch accommodating portion in the closing direction of a door to which the latch lock is attached, the noise suppression member moving from a position upstream of the latch accommodating portion in the closing direction of the door, through a position overlapping the edge of the opening of the latch accommodating portion, to the latch accommodating portion. the latch receiver for a magnetic latch has a series of portions extending to the inside of the latch accommodating portion, the outer surface of the series of portions being a series of faces formed from a single member, the series of portions having a front side portion extending from upstream of the latch accommodating portion toward the latch accommodating portion and a rear side portion extending from the opening side of the latch accommodating portion toward the rear side, and has a main body member, the noise suppression member has a mass-shaped portion including the front side portion and the rear side portion, and the mass-shaped portion is formed integrally with the main body member so that the front side portion and the rear side portion are exposed to the outside. In yet another aspect of the present invention, there is provided a latch receiver for a magnetic latch used in combination with a latch lock having a latch that moves by magnetic force, the latch receiver having a latch accommodating portion for accommodating the protruding latch, and a noise suppression member for reducing noise generated by contact with the latch at a position overlapping the opening edge of the latch accommodating portion and at a position upstream of the latch accommodating portion in the closing direction of the door to which the latch lock is attached, the noise suppression member extending from a position upstream of the latch accommodating portion in the closing direction of the door through a position overlapping the opening edge of the latch accommodating portion a latch receiver for a magnetic latch, characterized in that it has a series of portions extending to the inside of the latch accommodating portion, the outer surface of the series of portions being a series of surfaces formed from a single member, it has a main body member, the latch accommodating portion is formed on the main body member, the noise suppression member is formed integrally and inseparably with the main body member, it further has a base member, and is fixed to a fixed object in a state where the main body member and the base member are engaged, and when the main body member and the base member are engaged, the relative positions of the main body member and the base member can be changed to engage them. The above aspect preferably has a main body member, the latch accommodating portion is formed in the main body member, and the noise suppression member is formed integrally and inseparably with the main body member. The term "integral and inseparable" means that the components cannot be separated unless one of the components is destroyed or damaged.

[0012] According to this aspect, it is possible to prevent the noise suppression member from unexpectedly coming off due to long-term use.

[0013] In the above aspect, the noise suppression member extends from a position upstream of the latch accommodating portion in the closing direction of the door, through a position overlapping with the opening edge of the latch accommodating portion, to the inside of the latch accommodating portion. There are.

[0014] In this manner, noise generation can be further suppressed.

[0015] The preferred aspect described above further has a base member, and is fixed to a fixed object in a state in which the main body member and the base member are engaged with each other.It is more preferable that when engaging the main body member and the base member, the relative positions of the main body member and the base member are changed and then the engagement is effected.

[0016] According to this aspect, when the latch receiver is attached to a fixed object such as a door frame, the relative position of the noise suppression member to the fixed object can be adjusted. [Effects of the Invention]

[0017] The present invention can provide a latch receiver for a magnetic latch that can suppress noise generated during use. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a perspective view showing a door structure using a latch receiving member according to an embodiment of the present invention. [Figure 2] FIG. 2 is a perspective view showing the latch receiving member of FIG. 1. [Figure 3] FIG. 3 is an exploded perspective view showing the latch receiving member of FIG. 2. [Figure 4] 4A and 4B are views showing the main body member of FIG. 3, in which (a) is a perspective view and (b) is a front view. [Figure 5] 4(a) and 4(b) are views showing the main body member of FIG. 3, in which (a) is an exploded perspective view of the main body member as seen from a different direction from that of FIG. 4(a), and (b) is a rear view. [Figure 6] 4(a) and 4(b) are views showing the main body member of FIG. 3, in which (a) is a cross-sectional perspective view, and (b) is a cross-sectional view taken along line AA of FIG. 4(a). [Figure 7] 4A and 4B are diagrams showing the base member of FIG. 3, in which (a) and (b) are perspective views seen from different directions. [Figure 8] The left figure is a front view showing a structure in which a main body member and a base member are engaged, and the right figure is an explanatory diagram showing how a decorative panel member is placed on the structure in the left figure, with (a) and (b) showing the main body member engaged at different positions on the base member. [Figure 9] 8(a) is a rear view showing the structure of FIG. 8(a), and FIG. 8(b) is a rear view showing the structure of FIG. 8(b). [Figure 10] The left figure is an explanatory diagram that shows a schematic view of the latch bolt protruding toward the latch receiving member when the door is closed in the door structure of Figure 1, and is a view from above with the door frame member and latch receiving member cut away. The right figure is a perspective view showing the door and door frame member corresponding to the state shown in the left figure, and the door closes in the order of (a) to (c). DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, door structures according to embodiments of the present invention will be described in detail with reference to the drawings, but the present invention is not limited to these examples. Furthermore, the up-down and left-right directions will be described based on the state in FIG. 1. That is, in the width direction of the latch receiving member 1 (latch receiving member for a magnetic latch), the upstream side in the closing direction of the door 4 (front left side in FIGS. 1 and 2) will be described as the left, and the downstream side (rear right side in FIGS. 1 and 2) will be described as the right. Furthermore, in the front-rear direction, the front side of the latch receiving member 1 (the door 4 side when the door 4 is closed) will be described as the front, and the opposite side will be described as the rear.

[0020] The door structure of this embodiment has a latch receiving member 1, a latch lock 2, a door frame member 3 (an object to be fixed), and a door 4, and is formed by attaching the latch receiving member 1 to the door frame member 3 and attaching the latch lock 2 to the door 4. In detail, this door structure is a so-called swing door, and the door 4 and the door frame member 3 are attached rotatably via hinges (connecting members) not shown.

[0021] The latch lock 2 has a lock case and a latch bolt 2a (latch), and is structured so that the latch bolt 2a can move in and out of the lock case. This latch lock 2 forms a magnetic latch (magnetic latch structure) together with the latch receiving member 1. That is, the latch bolt 2a protrudes (moves) due to the magnetic force of a magnetic member 37 (not shown in FIG. 1, described in detail later) provided on the latch receiving member 1 and one of the latch locks 2 (the latch receiving member 1 in this embodiment).

[0022] The latch receiving member 1 is attached to the vertical frame portion of the door frame member 3, which serves as a door stop.

[0023] The latch receiving member 1 of this embodiment includes a decorative plate member 10, a main body member 11, and a base member 12, as shown in FIGS.

[0024] The decorative plate member 10 is a thin metal plate member, and more specifically, is a member having a substantially vertically elongated rectangular shape when viewed from the front.

[0025] 3, the decorative plate member 10 is provided with mounting holes 16 and through-hole portions 17. The mounting holes 16 and the through-hole portions 17 are both holes that penetrate the decorative plate member 10 in the thickness direction.

[0026] The mounting holes 16 are circular holes that extend in the front-to-rear direction, and are formed one at a time at positions spaced apart in the vertical direction. That is, the decorative board member 10 of this embodiment has multiple (two) mounting holes 16. These mounting holes 16 are holes through which fastening elements such as screws can be inserted. The term "fastening element" as used herein is a broader concept than screws, nails, bolts, pins, etc., and is a mechanical component that can be fastened and released without, in principle, destroying the fastened object.

[0027] The through-hole portion 17 is a through-hole formed at a position between the two mounting holes 16, and is a hole that integrates a latch-passing hole 17a, which is a portion through which the latch bolt 2a passes, and a component arrangement hole 17b, inside which a part of a soundproofing member 45 (described in detail later) is arranged. The latch-passing hole 17a and the component arrangement hole 17b are both rectangular through-holes in a front view, and the latch-passing hole 17a has a larger opening area than the component arrangement hole 17b. Specifically, the latch-passing hole 17a and the component arrangement hole 17b are aligned in the left-right direction, and a part of one side of the latch-passing hole 17a is continuous with the entirety of one side of the component arrangement hole 17b.

[0028] As shown in FIGS. 4 and 5, the main body member 11 has an attachment plate portion 20, a raised portion 21, and an engaging claw portion 22. The mounting plate 20 has a generally vertically elongated rectangular shape when viewed from the front. The mounting plate 20 has a mounting hole 30 and an intermediate hole 31. The mounting holes 30 are elongated holes extending in the left-right direction, and are formed one by one at positions spaced apart in the up-down direction. That is, the main body member 11 of this embodiment has a plurality of (two) mounting holes 30. The intermediate hole portions 31 are holes with an opening shape that is substantially rectangular and laterally elongated, and are formed one by one at positions between the two mounting hole portions 30 and spaced apart in the up-down direction.

[0029] 5, the raised portion 21 is a portion having an approximately rectangular parallelepiped outer shape, and protrudes rearward from one main surface of the mounting plate portion 20. A component accommodating portion 35 is formed in the rear portion of the raised portion 21. The member accommodating portion 35 is a recessed portion recessed forward and forms a substantially rectangular parallelepiped space.

[0030] The latch receiving member 1 of this embodiment has a magnet member 37. This magnet member 37 is fitted into the member accommodating portion 35 almost exactly and is attached to the main body member 11. The magnet member 37 is a permanent magnet.

[0031] As shown in Figure 6(a), the engaging claw portion 22 extends toward the rear side, and is integrally formed with a base end side portion 22a located on the base end side in the extension direction and a tip end side portion 22b located on the tip end side. The base end side portion 22a is an L-shaped plate-like portion that is bent and extends in part, and has a bent portion at the boundary between the vertical plate-like portion and the horizontal plate-like portion. The base end side portion 22a is formed to be elastically deformable. The tip side portion 22b is a generally triangular prism-shaped portion extending left and right with a generally triangular cross section, and its thickness decreases toward the rear. In detail, in the upper engaging claw portion 22, the upper surface of the base end side portion 22a and the upper surface of the tip side portion 22b are connected via a step, and the upper surface of the tip side portion 22b forms an inclined surface that slopes downward toward the rear. The lower engaging claw portion 22 has a shape that is upside down compared to the upper engaging claw portion 22.

[0032] The engaging claw portion 22 is a portion that extends from the inside of the intermediate hole portion 31, and a portion of it is disposed inside the intermediate hole portion 31. Here, as shown in Figures 5 and 6(a), an upper recess 21a that is recessed downward and a lower recess 21b that is recessed upward are formed in the upper portion (upper surface) and the lower portion (lower surface) of the raised portion 21, respectively. A portion of the upper engaging claw portion 22 is disposed inside the upper recess 21a, and a portion of the lower engaging claw portion 22 is disposed inside the lower recess 21b.

[0033] As shown in FIGS. 4 and 6, the main body member 11 is provided with a latch accommodating portion 40 into which the latch bolt 2a enters when the door 4 is closed. The latch accommodating portion 40 is a recessed portion (concave portion) that has an opening in the front main surface of the mounting plate portion 20 and is recessed rearward. In other words, the latch accommodating portion 40 is formed in a portion that penetrates the mounting plate portion 20 and reaches the inside of the protruding portion 21.

[0034] 4, the latch accommodating portion 40 has an upper wall portion 40a, two side walls consisting of a first side wall portion 40b and a second side wall portion 40c, a lower wall portion 40d, and a rear wall portion 40e, which form a substantially rectangular parallelepiped space surrounded by these. The first side wall portion 40b and the second side wall portion 40c are spaced apart and opposed to each other in the left-right direction, with the first side wall portion 40b located on the left and the second side wall portion 40c located on the right.

[0035] 6, the component accommodating portion 35 is located behind the rear wall portion 40e inside the raised portion 21. That is, the raised portion 21 has a partition-wall-like portion (partition wall portion) that forms the rear wall portion 40e inside, and the latch accommodating portion 40 and the component accommodating portion 35 (magnet member 37) are located on either side of this partition wall portion.

[0036] As shown in FIG. 4 and other figures, the main body member 11 of this embodiment has a soundproofing member 45 (noise suppression member) as a characteristic part.

[0037] The soundproofing material 45 is a rubber material whose main ingredient is rubber, and has elasticity and is capable of elastic deformation. Note that the "main ingredient (principal ingredient)" mentioned here means that a sufficient amount of rubber is contained to perform its function.

[0038] The soundproofing member 45 has a front side portion 45a located forward of the mounting plate portion 20, and a rear side portion 45b. As shown in Figures 4(a), 6(a), etc., the front side portion 45a has a shape in which the central portion in the vertical direction is raised forward more than the upper end portion and the lower end portion.

[0039] 6(a) and other figures, the portion of the soundproofing member 45 that is exposed to the outside extends in a substantially L-shape in plan view. That is, the portion of the soundproofing member 45 that is exposed to the outside is shaped as if it were pressed against the front main surface of the mounting plate 20, the corner formed by this front main surface and the inner surface of the first side wall 40b, and the inner surface of the first side wall 40b.

[0040] That is, as shown in FIG. 4(b) and other figures, the soundproofing member 45 (front side portion 45a) extends from the left to the right of the latch accommodating portion 40 in a front view, passes through a portion that overlaps with the opening edge of the latch accommodating portion 40, and extends to a position inside the opening edge. That is, a portion of the soundproofing member 45 and a portion of the opening edge of the latch accommodating portion 40 (a portion of the left side in a front view) overlap in a front view. Another portion of the soundproofing member 45 is disposed within the area surrounded by the opening edge of the latch accommodating portion 40 in a front view. 6, the exposed portion of the rear portion 45b extends rearward. At this time, the rear portion 45b extends to the rear wall portion 40e, and the rear end portion of the rear portion 45b is in contact with the rear wall portion 40e. That is, in this embodiment, the front end portion of the rear side portion 45b and the front end portion of the first side wall portion 40b are positioned at the same position in the front-to-back direction, and the rear end portion of the rear side portion 45b and the rear end portion of the first side wall portion 40b are positioned at the same position in the front-to-back direction.

[0041] In addition, steps are formed between the upper and lower surfaces of the soundproofing member 45 and the front main surface of the mounting plate portion 20 and the inner surface of the first side wall portion 40b, and steps are also formed between the side surface of the soundproofing member 45 and the front main surface of the mounting plate portion 20.

[0042] Here, the vertical length of the soundproofing member 45 is shorter than the vertical length of the latch accommodating portion 40. The upper end portion of the soundproofing member 45 is located lower than the upper end portion of the latch accommodating portion 40, and the lower end portion of the soundproofing member 45 is located higher than the lower end portion of the latch accommodating portion 40. In other words, the entire soundproofing member 45 is located between the upper and lower end portions of the latch accommodating portion 40.

[0043] Furthermore, the main body member 11 of this embodiment is a member made of synthetic resin, and is formed by insert molding with the soundproofing member 45 as an insert part. In other words, the main body member 11 and the soundproofing member 45 are formed as an integral unit that cannot be separated without destruction in principle.

[0044] 5, the main body member 11 of this embodiment has a protrusion 48 formed on the side of the raised portion 21. More specifically, this protrusion 48 is a vertically long protrusion that protrudes further rearward from the rear main surface of the mounting plate portion 20 and is continuous with the left side surface (the right side in FIG. 5) of the two side surfaces of the raised portion 21.

[0045] As shown in FIG. 7, the base member 12 has a mounting plate portion 50 and a box-shaped portion 51.

[0046] The mounting plate 50 has a shape similar to that of a vertically elongated rectangular plate with a portion missing, more specifically, a portion missing midway in the vertical direction. In other words, the mounting plate 50 is composed of an upper flange plate 50a and a lower flange plate 50b that are spaced apart vertically. Two missing portions 55 are formed between the upper flange plate 50a and the lower flange plate 50b. The two missing portions 55 are formed at positions spaced apart in the left-right direction. The upper flange plate portion 50a and the lower flange plate portion 50b are each formed with a mounting hole 57. The mounting hole 57 is a through-hole that penetrates the upper flange plate portion 50a and the lower flange plate portion 50b, has a circular opening that extends in the front-to-rear direction, and allows a fastening element such as a screw to be inserted therethrough.

[0047] The box-shaped portion 51 is a roughly rectangular parallelepiped portion with an opening on the front side, and as shown in Figure 7(b) etc., has an upper wall portion 51a, a lower wall portion 51b, two side wall portions 51c, and a rear wall portion 51d.

[0048] The box-shaped portion 51 is located on the rear side of the mounting plate portion 50. A part of the front side of the box-shaped portion 51 is integrally continuous with the rear side of the mounting plate portion 50. That is, the lower portion of the upper flange plate portion 50a is integrally continuous with the upper portion of the box-shaped portion 51. In detail, of the box-shaped portion 51, the upper wall portion 51a and the upper portions of the two side wall portions 51c are integrally continuous with the rear portion of the upper flange plate portion 50a. Additionally, the upper portion of the lower flange plate portion 50b is integrally continuous with the lower portion of the box-shaped portion 51. In detail, of the box-shaped portion 51, the lower wall portion 51b and the lower portions of the two side wall portions 51c are integrally continuous with the rear portion of the lower flange plate portion 50b.

[0049] A base-side accommodation space 58 is formed in the base member 12. The base-side storage space 58 has an opening on the front surface of the mounting plate 50, and is a space formed in the portion that penetrates the mounting plate 50 and reaches the inside of the box-shaped portion 51. In other words, it is a roughly rectangular parallelepiped space that is recessed toward the rear. Therefore, most of the base-side storage space 58 is surrounded by the upper wall 51a, the lower wall 51b, the two side walls 51c, and the rear wall 51d.

[0050] 7(b) and other figures, engagement holes 59 are provided on the upper and lower sides of the box-shaped portion 51. These engagement holes 59 are holes that communicate the base-side storage space 58 with the outside. Specifically, the upper engagement hole 59 is formed by removing a portion of the upper wall 51a from the front end to the rear end and a portion of the rear wall 51d that is continuous with this portion, and penetrates both a portion of the upper wall 51a and a portion of the rear wall 51d. The lower engagement hole 59 is formed by removing a portion of the lower wall 51b from its front end to its rear end and a portion of the rear wall 51d that is continuous with this portion, and penetrates both a portion of the lower wall 51b and a portion of the rear wall 51d. These two engagement holes 59 are spaced apart and face each other in the vertical direction.

[0051] Next, the assembly structure of the latch receiving member 1 according to this embodiment will be described.

[0052] 2 and 3, the latch receiving member 1 of this embodiment is in a state in which the base member 12 and the main body member 11 are engaged with each other, and the decorative plate member 10 is arranged to cover the front side of the structure formed by the engagement of the base member 12 and the main body member 11. Then, by inserting fastening elements through the mounting holes 16 of the decorative plate member 10, the mounting holes 30 of the main body member 11, and the mounting holes 57 of the base member 12, the latch receiving member 1 is fixed to an object to be fixed, such as the door frame member 3.

[0053] More specifically, when the latch receiving member 1 is attached to the door frame member 3 (see FIG. 1), at least the rear portion (box-shaped portion 51) of the base member 12 is housed (details not shown) in an attachment hole portion (not shown) formed in the door frame member 3. In other words, the base member 12 is a member that comes into direct contact with an object to be fixed when the latch receiving member 1 is attached.

[0054] Then, the main body member 11 is engaged with the base member 12. In this state, as shown in Figures 2, 8, etc., the protruding portion 21 (see Figure 3, etc.) of the main body member 11 is inserted into the base-side accommodation space 58 (see Figure 3, etc.) of the base member 12. At this time, as shown in Figure 2 etc., depending on the position of the main body member 11 (details will be described later), part of the protrusion 48 of the main body member 11 may be inserted inside the missing portion 55 of the base member 12.

[0055] 9 and other figures, the two engaging claws 22 of the main body member 11 and the two engaging hole portions 59 of the base member 12 are engaged with each other. That is, the two engaging claws 22 and the two engaging hole portions 59 are paired engaging portions, and the two engaging claws 22 are engaged with different engaging hole portions 59, respectively. More specifically, by bringing the base member 12 and the main body member 11 close to each other and pushing the main body member 11 toward the base member 12, the base end side portion 22a (see FIG. 6(a)) of the engaging claw portion 22 is temporarily elastically deformed (detailed illustration is omitted). Then, a part of the tip side of the engaging claw portion 22 enters the inside of the engaging hole portion 59 (see FIG. 9), and the engaging claw portion 22 and the engaging hole portion 59 are engaged with each other.

[0056] At this time, as shown in Figure 9 and other figures, the mounting plate 50 is located in front (behind in Figure 9) of the tip side portion 22b (see Figure 6(a) and other figures) of the engaging claw portion 22. Therefore, even if an attempt is made to simply move the main body member 11 forward, the engaging claw portion 22 (tip side portion 22b) comes into contact with the mounting plate 50, preventing the movement.

[0057] 8 and 9, in the latch receiving member 1 of this embodiment, when the main body member 11 and the base member 12 are engaged with each other, the relative positions of the main body member 11 and the base member 12 can be changed. In other words, the attachment position of the main body member 11 with respect to the base member 12 can be changed.

[0058] In more detail, as shown in Figure 8, the main body member 11 and the base member 12 have approximately the same length in the vertical direction, but the main body member 11 is shorter in the width direction (left and right direction) than the base member 12. The width of the raised portion 21 (see FIG. 3, etc.) is shorter than the width of the base-side accommodation space 58 (see FIG. 3, etc.). As shown in FIG. 9, the width of the engaging claw portion 22 is shorter than the width of the engaging hole portion 59. Furthermore, as shown in FIG. 8, the mounting hole portion 30 of the main body member 11 is an elongated hole, and is longer in the width direction (width direction of the latch receiving member 1) than the mounting hole 57 of the base member 12.

[0059] As a result of the above, the relative position of main body member 11 with respect to base member 12 can be changed while engaged with base member 12. In other words, when base member 12 is fixed and main body member 11 and base member 12 are engaged with each other, main body member 11 can move left and right while maintaining the engaged state. 8, even if the attachment position of main body member 11 relative to base member 12 is changed, a state in which part of attachment hole portion 30 of main body member 11 and attachment hole 57 of base member 12 overlap in the front-to-rear direction is maintained. In other words, even if the position of main body member 11 relative to base member 12 is changed to any position in the left-to-right direction, part of attachment hole portion 30 and attachment hole 57 form a continuous hole.

[0060] Therefore, the base member 12 is placed at the mounting position, and after engaging the main body member 11 with the base member 12, the main body member 11 is moved to an appropriate position. Then, the mounting hole 16 of the decorative board member 10, a part of the mounting hole portion 30, and the mounting hole 57 overlap in the front-to-rear direction to form a series of holes, and by inserting a fastening element through them, the latch receiving member 1 can be fixed to the object to be fixed.

[0061] The vertical length and width length of the decorative board member 10 are approximately the same as the vertical length and width length of the base member 12.

[0062] As described above, the structure that allows the change of the mounting position of main body member 11 relative to base member 12 makes it possible to change (adjust) the position of main body member 11 relative to door frame member 3 when fixing latch receiving member 1 to door frame member 3 (see FIG. 1). In other words, it is possible to change the positions of latch accommodating portion 40 and soundproofing member 45 relative to door frame member 3.

[0063] In addition, the main body member 11 of this embodiment can be attached upside down to the base member 12. For example, by attaching the main body member 11 to the base member 12 upside down from the state shown in Figures 2 and 3, the soundproofing member 45 can be changed from being located on the left side to being located on the right side. In this case, the decorative panel member 10 is also attached upside down. In other words, when the latch receiving member 1 of this embodiment is fixed to a fixed object such as a door frame, the position of the soundproofing member 45 can be changed depending on the closing direction of the door. For example, even if the closing direction of the door is opposite to the direction shown in Fig. 1 (direction from the front side to the back side), the soundproofing member 45 can be placed upstream in the closing direction by turning the main body member 11 upside down and changing the position of the soundproofing member 45. In this case, the position of the soundproofing member 45 may be changed by attaching the entire latch receiving member 1 upside down.

[0064] Next, we will explain in detail what happens in the door structure of this embodiment when the latch bolt 2a protrudes further upstream than expected (upstream in the door closing direction) due to the door 4 being closed at a speed different from expected.

[0065] As shown in FIG. 10( a ), when the door 4 is closed and the latch lock 2 approaches the latch receiving member 1 , the latch bolt 2 a protrudes from the lock case of the latch lock 2 . 10(b), the protruding end of the latch bolt 2a abuts (contacts) the soundproofing member 45. More specifically, the latch bolt 2a abuts against the front side portion 45a of the soundproofing member 45.

[0066] At this time, as described above, the soundproofing member 45 is made of resin and is an elastically deformable member, so it is possible to prevent (suppress) not only the sound of metals colliding with each other, but also the noise that accompanies the collision. In other words, even if the latch bolt 2a abuts against the periphery of the latch accommodating portion 40, no loud noise is generated. As described above, the soundproofing member 45 is formed integrally and inseparably with the main body member 11. Therefore, even if the latch bolt 2a repeatedly comes into contact with the soundproofing member 45 due to long-term use, the problem of the soundproofing member 45 coming off the main body member 11 can be prevented.

[0067] As the door 4 is closed, the latch bolt 2a moves downstream in the closing direction of the door 4 while maintaining contact with the soundproofing member 45. Even at this time, the latch bolt 2a maintains contact with the soundproofing member 45, preventing noise generation.

[0068] Furthermore, when the door 4 is in the closed state, as shown in Figure 10(c), the tip side (protruding end side) of the latch bolt 2a is housed in the latch housing portion 40. In other words, the latch bolt 2a passes through the through-hole portion 17 of the decorative plate member 10 and enters the inside of the latch housing portion 40. In the latch receiving member 1 of this embodiment, the soundproofing member 45 has the rear portion 45b, so even if the door 4, which has been closed for some reason (the state shown in FIG. 10(c)), moves in the opening direction, the latch bolt 2a abuts against the soundproofing member 45 (rear portion 45b). This prevents noise caused by the latch bolt 2a abutting against the inner peripheral surface of the latch accommodating portion 40.

[0069] Although the soundproofing member 45 in the above-described embodiment is an elastically deformable member made primarily of rubber, the present invention is not limited to this. The noise suppression member of the present invention may be any member that does not generate noise when metal collides with it, or that does not generate noise above a certain level. The raw materials (main raw materials) of this noise suppression member can be natural rubber, synthetic rubber, thermoplastic resin, thermoplastic elastomer, or a suitable combination of these. For example, silicone rubber can be used. [Explanation of symbols]

[0070] 1 Latch receiving member (latch receiving for magnetic latch) 2 latch lock 2a Latch bolt (latch) 3 Door frame components (fixed objects) 4 doors 11 Main body member 12 Foundation members 40 Latch housing 45 Soundproofing materials (noise suppression materials)

Claims

1. A latch receiver for a magnetic latch used in combination with a latch lock equipped with a latch that moves by magnetic force, The latch has a latch receiving portion in which the protruding latch is received, The latch lock is attached to a door that has a latch accommodating portion, and a noise suppression member that reduces noise caused by contact with the latch, the noise suppression member being located at a position that overlaps with the opening edge of the latch accommodating portion and at a position that is upstream of the latch accommodating portion in the closing direction of the door to which the latch lock is attached. The noise suppression member has a continuous portion extending from a position upstream of the latch accommodating portion in the door closing direction, through a position overlapping with the opening edge of the latch accommodating portion, to the inside of the latch accommodating portion, and the outer surface of the continuous portion is a continuous surface formed from a single member, The latch receiver for a magnetic latch is characterized in that the noise suppression member has elasticity.

2. A latch receiver for a magnetic latch used in combination with a latch lock equipped with a latch that moves by magnetic force, The latch has a latch receiving portion in which the protruding latch is received, The latch lock is attached to a door that has a latch accommodating portion, and a noise suppression member that reduces noise caused by contact with the latch, the noise suppression member being located at a position that overlaps with the opening edge of the latch accommodating portion and at a position that is upstream of the latch accommodating portion in the closing direction of the door to which the latch lock is attached. The noise suppression member has a continuous portion extending from a position upstream of the latch accommodating portion in the door closing direction, through a position overlapping with the opening edge of the latch accommodating portion, to the inside of the latch accommodating portion, and the outer surface of the continuous portion is a continuous surface formed from a single member, the continuous portion has a front side portion extending from the upstream side of the latch accommodating portion toward the latch accommodating portion, and a rear side portion extending from the opening side of the latch accommodating portion toward the rear side, a body member; The noise suppression member has a massive portion including the front side portion and the rear side portion, and the massive portion is formed integrally with the main body member so that the front side portion and the rear side portion are exposed to the outside.

3. A latch receiver for a magnetic latch used in combination with a latch lock equipped with a latch that moves by magnetic force, The latch has a latch receiving portion in which the protruding latch is received, The latch lock is attached to a door that has a latch accommodating portion, and a noise suppression member that reduces noise caused by contact with the latch, the noise suppression member being located at a position that overlaps with the opening edge of the latch accommodating portion and at a position that is upstream of the latch accommodating portion in the closing direction of the door to which the latch lock is attached. The noise suppression member has a continuous portion extending from a position upstream of the latch accommodating portion in the door closing direction, through a position overlapping with the opening edge of the latch accommodating portion, to the inside of the latch accommodating portion, and the outer surface of the continuous portion is a continuous surface formed from a single member, a body member; The latch accommodating portion is formed in the main body member, The noise suppression member is formed integrally and inseparably with the main body member, Further comprising a base member; The main body member and the base member are fixed to a target object in an engaged state, A latch receiver for a magnetic latch, characterized in that when the main body member and the base member are engaged with each other, the relative positions of the main body member and the base member can be changed for engagement.

4. A body member, The latch accommodating portion is formed in the main body member, 2. The latch receiver for a magnetic latch according to claim 1, wherein the noise suppression member is formed integrally and inseparably with the main body member.

Citation Information

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