JP7726779B2 - Vibration-proof structure for door locking device - Google Patents

Description

The present invention relates to the technical field of vibration-proof structures for locking devices on doors used to open and close entrances to buildings such as houses and buildings.

Today, when a locking device is installed in a door body (door frame, door door) installed to open and close an entrance, a known locking device is configured to include a lock body that is installed in the door body and locks and unlocks using an inserted key or operating knob (operating tool), a rod that extends from the lock body while penetrating the door body and moves up and down in conjunction with the locking operation, and a locking receiving portion that is installed on the main body side and engages with the locking portion at the tip of the rod that protrudes from the door body when the lock body is locked, thereby restricting the opening movement of the door body.
Since such rods are long, they may vibrate when the door is opened or closed, causing unpleasant noises. To prevent this, a door with a vibration-damping material attached to it is known (see, for example, Patent Document 1).

Japanese Patent Application Publication No. 10-153031

However, all of the above-mentioned conventional vibration-damping materials were arranged in the protruding portion of the rod that forms the upper edge of the door body (or sometimes the lower edge), so the distance from the location of the lock body to the location of the vibration-damping material, which forms the upper edge of the door body, was long.As a result, the rod was still prone to vibration, making it difficult to prevent the generation of unpleasant noises.
Furthermore, in the conventional locking devices, the vibration-damping material is in sliding contact with the entire circumference of the rod, which increases the sliding resistance of the vibration-damping material against the rod, thereby impairing the smoothness and agility of lock operation. These are the issues that the present invention aims to solve.

The present invention was created in consideration of the above-mentioned circumstances and with the aim of solving these problems. The invention of claim 1 is a vibration-proof structure for a locking device for a door body that opens and closes an entrance and exits, the locking device comprising: a lock body that is attached to the door body and performs the locking operation for locking and unlocking; a rod that extends from the lock body in the direction of the view and moves in conjunction with the locking operation of the lock body; and a locking receiving portion that is attached to a body side member and engages with the locking portion at the end of the rod that protrudes from the door body as the locking operation of the lock body occurs, thereby restricting the opening movement of the door body. In this locking device for a door body, a vibration-proof material with a through hole through which the rod passes loosely is provided in the door body in the intermediate portion between the portions where the rod of the door body protrudes from the lock body, and the vibration-proof material is attached so that the inner edge of the through hole abuts against the rod.
The invention of claim 2 is a vibration-proof structure for a locking device for a door body according to claim 1, characterized in that the vibration-proof material is attached in a state in which the through hole is biased in a direction perpendicular to the opening and closing movement direction of the door body.
The invention of claim 3 is a vibration-proof structure for a locking device of a door body described in claim 1 or 2, characterized in that the door body is a sliding door that moves open and closed in the left-right direction, and the vibration-proof material is attached in a state where the through hole is biased in the forward direction.
The invention of claim 4 is a vibration-proof structure for a locking device of a door body described in claim 1 or 2, characterized in that the door body is a hinged door that moves open and closed in the forward and backward directions, and the vibration-proof material is attached in a state where the through hole is biased in the finding direction.
The invention of claim 5 is a vibration-proof structure for a locking device for a door body described in claim 4, characterized in that the rod is arranged to pass through the front and rear panel plates that constitute the vertical stile of the door body in a loose fit manner, the vibration-proof material comprises a mounting bracket attached to one of the panel plates and a vibration-proof rubber having a through hole formed therein and attached to the mounting bracket, and the mounting bracket is attached in a state where it is biased in the viewing direction relative to the panel.
The invention of claim 6 is a vibration-proof structure for a locking device of a door body described in any one of claims 1 to 5, characterized in that the through hole is formed with a folded corner portion, and the vibration-proof material is attached biased in a direction of abutting against the rod at two points that sandwich the folded corner portion in the opening and closing direction of the door body.
A seventh aspect of the present invention provides a vibration-proof structure for a door body lock device according to any one of the first to sixth aspects, characterized in that a plurality of vibration-proof members are provided on the rod with gaps between them.
The invention of claim 8 is a vibration-proof structure for a locking device of a door body described in claim 7, characterized in that the abutment positions of the multiple vibration-proof materials against the rod are shifted in the circumferential direction of the rod.
The invention of claim 9 is a vibration-proof structure for a locking device of a door body described in any one of claims 1 to 8, characterized in that the vibration-proof material has an inner edge portion that is biased toward the through hole and abuts against the rod.
The invention of claim 10 provides the vibration-proof structure for a locking device for a door body according to claim 9, characterized in that the biased inner edge portion is a protrusion.
The invention of claim 11 is the vibration-proof structure for a locking device of a door body according to claim 9, characterized in that the biased inner edge portion is formed by providing a through hole biased relative to the vibration-proof material.

By adopting the invention of claim 1, the vibration-damping material is attached to the intermediate portion between the lock body and the portion where the rod extends from the door body, and the vibration-damping material provided in this intermediate portion abuts against the rod in an uneven state to dampen vibration.As a result, it is possible to regulate inadvertent vibration of the rod while avoiding impairing the smoothness and lightness of lock operation, and it is also possible to prevent the generation of unpleasant noises.
According to the invention of claim 2, the vibration-damping material is attached in a biased state in a direction perpendicular to the opening and closing movement direction of the door body, and the inner surface of the through hole abuts against the rod which tends to vibrate on the opening and closing direction side relative to the part of the through hole where the rod abuts, thereby ensuring reliable vibration damping of the rod. As a result, high vibration-damping performance can be achieved and the generation of unpleasant noise can be avoided.
According to the invention of claim 3, when the door body is a sliding door, the vibration-proof material is biased in the projection direction of the door body, thereby making it possible to exhibit the high vibration-proof performance.
According to the invention of claim 4, when the door body is a hinged door, the vibration-proof material is biased in the direction of the door body, thereby making it possible to exhibit the high vibration-proofing performance.
By adopting the invention of claim 5, in a swing door, the vibration-damping material is made up of mounting hardware and vibration-damping rubber, and by attaching the mounting hardware offset in the projection direction relative to either the front or rear face plate of the vertical stile, vibration damping of the rod can be easily achieved.
According to the invention of claim 6, the vibration-damping material has a through hole with a bent corner portion formed therein, and the bent corner portion is biased to abut against the rod at two points sandwiching the door body in the opening and closing direction, thereby ensuring a reliable vibration-damping effect at the rod abutment point on the inner surface of the through hole.
According to the seventh aspect of the present invention, by providing a plurality of vibration-damping materials, a higher vibration-damping effect can be achieved.
According to the invention of claim 8, when multiple vibration-damping materials are provided, the positions at which they abut against the rod are offset, thereby enabling vibration damping in multiple directions. For example, if the door body is a sliding door and the door body is exposed to wind and sways in a direction different from the opening and closing direction, it is possible to prevent the rod from vibrating in the forward and backward directions in response to the swaying.
According to the invention of claim 9, the vibration-proof material can be configured so that the through-holes are provided in a biased state, which increases the degree of freedom in the vibration-proof material structure.
According to the invention as defined in claim 10, the portion of the vibration-proofing material that comes into contact with the rod can be a protrusion provided on the inner edge.
According to the invention of claim 11, the through hole that contacts the rod is made to be biased in the vibration-damping material, so that it is not necessary to attach the vibration-damping material to the door body in a biased manner.

FIG. FIG. 2 is a cross-sectional plan view of a main part of a door body when the door body is a sliding door. FIG. FIG. (A) (B) (C) (D) are a cross-sectional plan view, a longitudinal front view, a longitudinal side view, and a cross-sectional plan view of the vibration-damping material portion of the same door body in a reference state with the centers of the rod and the through hole aligned. 10A, 10B, and 10C show a second embodiment, and are a cross-sectional plan view, a longitudinal front view, and a cross-sectional side view of a vibration-proof material portion when the door body is a hinged door. 10A, 10B, 10C, and 10D are a longitudinal cross-sectional front view, a longitudinal cross-sectional side view, a cross-sectional plan view of the upper vibration-damping material portion, and a cross-sectional plan view of the lower vibration-damping material portion, showing the third embodiment. 10A and 10B are cross-sectional plan views of vibration-proof material portions showing fourth and fifth embodiments, respectively. 10A and 10B are a plan view and a longitudinal sectional side view of a vibration-proof material portion showing a sixth embodiment, and FIGS. 10C and 10D are a vertical sectional side view and a longitudinal sectional side view of a vibration-proof material portion showing a seventh embodiment, respectively. 13A and 13B are a plan view and a side view of a vibration-proof material portion showing an eighth embodiment. FIG. 13 is a front view of a door body according to a ninth embodiment. FIG. 4 is a vertical cross-sectional side view of a rod portion of the door body. FIG. 4 is a vertical sectional front view of a rod portion of the door body. 1A and 1B are cross-sectional views of the vibration-isolating material portion of the upper rod and the lower rod, respectively. 1A and 1B are a plan view and a side view of the upper vibration-damping material, and 1C and 1D are a plan view and a side view of the lower vibration-damping material.

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, reference numeral 1 denotes a door body. The door body 1 is configured with front and back panels 1e. It is a sliding door system in which a hanger roller 3 protruding from the upper edge of the door body 1 travels left and right on a hanger rail 2 arranged on a frame member above the entrance/exit E to open and close the entrance/exit E. A lock main body 4 constituting a locking device is provided on the leading edge of the door body 1.

The lock body 4 is incorporated into the door body 1 in a vertically intermediate position where it can be easily operated by a person while abutting (close to) the trailing edge of the leading vertical frame member 1a that constitutes the door body 1, and is a general-purpose lock that can be locked and unlocked by turning an operating knob 4a on the indoor side or a keyhole (not shown) on the outdoor side. The leading vertical frame member 1a is formed into a hollow cylinder T by providing a door stop member 1b at its leading side that abuts against the leading vertical door frame 7 when the door body 1 is closed. Note that various door stop members 1b may be used as needed, such as those made of a rubber-like elastic material or a metal material such as aluminum.
Meanwhile, the lower edge of a rod 5, which is pillar- or tubular-shaped (various shapes are used for the external shape, such as circular, flat, square, hexagonal, etc.), is interlocked with an operating part 4e provided so as to protrude from the lock body 4 onto the door-end vertical frame member 1a, which is U-shaped in plan view. The rod 5 extends upward (in the direction of sight) while passing through a hollow tube T formed in the door-end vertical frame member 1a. The lower edge of a locking part (locking rod) 5a, which has a larger diameter (width) than the rod 5, is connected to the upper edge of the rod 5. In this case, the locking part 5a passes through a guide tube part 6a formed in a rod guide 6 provided on the upper frame member 1f, which forms the upper edge of the door body 1, so as to be movable up and down. Incidentally, the hole diameter of the guide tube portion 6a is set to a size that allows it to slide against the locking portion 5a or to face it with a small gap (e.g., 0.5 mm).By configuring it in this way, it is configured to provide a vibration-damping (anti-vibration) function at the part of the rod 5 that extends from the upper edge of the door body 1 (the upper edge of the guide tube portion 6a).
When the lock body 4 is operated, the rod 5 moves up and down, causing the door body 1 to change position between an unlocked position in which the amount of protrusion of the locking portion 5a from the rod guide 6 is small and it does not reach the locking receiving portion 8 provided on the bracket 7a protruding from the door vertical frame (body side member) 7 on the door end side, allowing the door body 1 to open, and a locked position in which the amount of protrusion of the locking portion 5a from the rod guide 6 is large and the large protruding part of the locking portion 5a engages with the locking receiving portion 8, restricting the opening movement of the door body 1.

Reference numeral 9 denotes a vibration-damping material made of a rubber-like elastic material to dampen the vibration of the rod 5. The vibration-damping material 9 is disposed in the vertically intermediate portion (preferably the center portion) between the operating portion 4b of the lock body 4 and the rod guide 6. At this location, the base 9a of the vibration-damping material 9 is fixed to the inner surface of the spanning portion 1c of the door-end vertical frame member 1a using adhesive, double-sided adhesive tape, or other fastening means. The tip 9b has an arc-shaped through-hole 9c with a diameter larger than that of the rod 5, large enough to allow the rod 5 to fit loosely. Furthermore, a notch 9d is formed at the tip of the through-hole 9c to allow the rod 5 to be inserted and assembled in a forced manner.

5(D), the rod 5 is designed so that its center Y is located on the center line X of the door body 1 in the projection direction (thickness direction, front-to-rear direction), while the vibration-damping material 9 is designed so that when the base 9a is attached to the door-end vertical frame member 1a so that the center Z of the through hole 9c is located on the center line X, the center Z of the through hole 9c and the center Y of the rod 5 (center line, center of gravity when cross-sectioned) coincide with each other. In this case, the rod 5 is fitted loosely into the through hole 9c, with a gap between the rod 5 and the through hole 9c. As a result, in this reference example, the gap between the rod 5 and the through hole 9c allows the rod 5 to vibrate, and vibration is not completely damped, causing the rod 5 to vibrate when the door body 1 is opened or closed, resulting in noise.
In contrast to this, in the present embodiment, the vibration-damping material 9 is biased to one side of the front direction of the door body 1, and abuts against the rod 5 at a contact point 9e which is a single point when viewed in a plane relative to the inner edge (inner peripheral edge) of the through hole 9c. In this case, the contact point 9e is biased so that it abuts against the rod 5 at a single point on the through hole 9c which is located in a direction perpendicular to the center Z of the through hole 9c and the opening/closing movement direction (front direction) of the door body 1 (see Figures 5(A) to (C)).
In addition, since the vibration-damping material 9 in this embodiment is configured to be long in the vertical direction, the point of contact 9e when the rod 5 abuts against the through hole 9c in a plan view is essentially a linear abutment that is long in the vertical direction.

By attaching the vibration-damping material 9 to the door body 1 in this way, when the door body 1 opens or closes in the left-right direction, the rod 5 moves left-right relative to the door body 1 due to inertia, vibrating. However, because the rod 5 abuts at a single abutment point 9e on the inner surface of the through-hole 9c in the forward direction, the rod 5 has inner surfaces that bulge in an arc toward the center Z on both the left and right sides of the abutment point 9e, thereby regulating vibration.

In this embodiment, configured as described above, vibration-damping material 9 is provided to dampen the vibration of the rod, which vibrates due to inertia when the door body 1 is opened or closed. The vibration-damping material 9 is located vertically midway between the lock body 4 and the rod guide 6, which is attached to the upper edge of the door body 1 so that the rod of the door body 1 protrudes. Furthermore, in this case, the through hole 9c formed in the vibration-damping material 9 abuts the rod 5 in a biased manner. As a result, the rod 5 is damped at its midpoint with a small contact surface against the through hole 9c, reducing the increase in sliding resistance. This maintains smooth lock operation while regulating the vibration of the rod 5, effectively preventing the generation of unpleasant noises.

In this case, the door 1 is a sliding door that opens and closes in the left-right direction, and the vibration-damping material 9 is attached in a position offset (misaligned) in the projected direction perpendicular to the direction of opening and closing of the door 1. This causes the inner surface of the through-hole 9c on both the left and right sides of the door 1, in the opening and closing direction, to form a bulging arc-shaped inner surface relative to the abutment point 9e where the rod 5 of the through-hole 9c abuts. As a result, the rod 5, which tends to vibrate in the left-right direction, abuts against the bulging arc-shaped inner surface, thereby reliably damping the vibration of the rod 5 and preventing the generation of unpleasant noises. Furthermore, because the rod 5, which is damped in this way, only abuts against the through-hole 9c at one abutment point 9e, with only a few abutments, it is possible to avoid a heavy locking operation and impaired operability.

This vibration damping of the rod 5 is not limited to a sliding door type door body 1, but can also be implemented in a swing door type door body 1 that swings open and closed in the front-to-rear direction using the end edge on the hanging side as a swing support axis, as in the second embodiment shown in Figure 6.
In this case, since the door body 1 moves in the front-to-rear direction during opening and closing, it is preferable that the vibration-isolating material 9 be biased in the viewing direction (left-to-right direction) of the door body 1. It is also preferable that the abutment point 9e of the rod 5 of the vibration-isolating material 9, when viewed from above, be in a left-to-right position perpendicular to the front-to-rear direction, which is the opening and closing direction of the door body 1. However, if the vibration-isolating material 9 used in the above embodiment is used, the length (width) in the left-to-right direction is insufficient for the abutment, so by attaching the vibration-isolating material 9 to the door-end vertical frame member 1a via an interposing member (spacer) 10 that makes up the shortfall in thickness, it becomes possible to attach the vibration-isolating material 9 at a position biased to the rod 5 (see Figure 6), and this allows for the use of common parts.
Of course, the vibration-proofing material 9 can be made thicker at the base 9a so that the interposing material 10 is not required.

Furthermore, the present invention is not limited to the first and second embodiments, but may be implemented as a third embodiment and subsequent embodiments shown in FIG.
In the third embodiment, two (or more) vibration-damping materials 9 (9U, 9D) are provided at the vertical middle portion with a gap therebetween, and in this case, it is preferable that the abutment points 9Ue, 9De of each vibration-damping material 9U, 9D with respect to the through-holes 9Uc, 9Dc are different. Therefore, in the third embodiment, the upper vibration-damping material 9U is arranged such that the abutment point 9Ue is biased in one direction in the front-to-rear direction with respect to the center Z of the through-hole 9c, as in the first embodiment, and the lower vibration-damping material 9D is arranged such that the abutment point 9De is biased in one direction in the left-to-right direction with respect to the center Z of the through-hole 9c, as in the second embodiment. By doing so, for example, when the door body 1 is a sliding door, in addition to the vibration-damping effect of the rod 5 when opening and closing left and right, the vibration-damping effect of the rod 5 can be exerted when the door body 1 is swayed in the front-to-rear direction in a strong wind, for example.
Of course, it goes without saying that vibration isolation of the rod 5 by providing such a plurality of vibration isolation materials 9 is not limited to sliding doors, but can also be implemented in hinged doors.

Furthermore, the vibration-isolating material 9 can be configured as in the fourth and fifth embodiments shown in Figures 8(A) and 8(B), in which the vibration-isolating material 9 has a through hole 9c with a bent corner portion 9f formed therein, and the vibration-isolating material 9 is attached so that the rod 5 abuts on the rod 5 at two points sandwiching the bent corner portion 9f, which become abutting contact points 9e.
In this case, the fourth embodiment shown in Figure 8(A) is preferably used for a hinged door in which the door body 1 opens and closes in the front-to-back direction, while the fifth embodiment shown in Figure 8(B) is preferably used for a sliding door in which the door body 1 opens and closes in the left-to-right direction. In Figure 8(B), the vibration-isolating material 9 is attached to the leading vertical frame member 1a using an interposing member 10 to standardize components, but the attachment position on the leading vertical frame member 1a is set to one of the leg pieces 1d in the front-to-back direction. In these embodiments, the two contact points 9e serve as contact points, resulting in a high vibration suppression effect in the opening and closing direction of the rod 5, thereby achieving a superior vibration-damping effect. Although the present embodiment uses the same vibration-isolating material 9 and therefore the interposing member 10, the interposing member 10 can be eliminated by varying the shape of the base 9a of the vibration-isolating material 9.
Incidentally, depending on the door body 1, for example, in the first, second and third embodiments, if the spanning portion 1c of the vertical frame member 1a is shallow by the thickness of the intermediate material 10, or in the fourth and fifth embodiments, if the distances from the spanning portion 1c and the leg portion 1d to the rod 5 are equal, the intermediate material 10 becomes unnecessary, and in each form, vibration damping can be achieved in the same manner as described above using vibration-damping material 9 of the same shape.

The present invention can also be implemented in the sixth and seventh embodiments shown in Figure 9. The sixth embodiment shown in Figures 9(A) and (B) has a strip-like protrusion 9g that is long in the vertical direction (for example, the entire length of the vibration-damping material 9) to form the contact point, while the seventh embodiment shown in Figures 9(C) and (D) has a point-like protrusion 9h, and the present invention can also be implemented in these embodiments. It goes without saying that when such protrusions are formed, their placement position, number, etc. can be set appropriately as needed.

In the eighth embodiment shown in Figures 10(A) and 10(B), the through-hole 9c formed in the vibration-damping material 9 is offset in the front-to-rear direction with respect to the center line Y of the vibration-damping material 9 in the front-to-rear direction (projection direction), not only when the door body 1 is a sliding door but also when it is a hinged door.The vibration-damping material 9 is attached so that the center line Y coincides with the center line X of the door body 1 in the width direction (projection direction), allowing the inner edge of the through-hole 9c to abut against the rod 5.This configuration allows the vibration-damping material 9 to be centrally positioned corresponding to the center line X of the door body 1 in the projection direction, improving assembly ease.

The present invention can also be configured as a ninth embodiment, shown in Figure 11 and subsequent drawings. This is installed on a swing-door door body and includes a vertical auxiliary frame member 11 extending from the trailing edge of the U-shaped leading vertical frame member 1a of the door body 1 toward the trailing edge. These frame members 1a and 11 form the leading vertical stile of the door body 1. The auxiliary frame member 11 is U-shaped and made up of front and rear frame plates (face plates) 11a and 11b and a trailing frame plate 11c that is bent from the trailing edge of one frame plate 11a to abut the other frame plate 11b. The lock body 4 is assembled so that it extends inside the auxiliary frame member 11. Incidentally, in this embodiment, the lock body 4 is separately attached above the operating handle 20a (described below) that is operated to open or close the door body 1.

The rod 5 provided on the lock body 4 is configured to extend in both the vertical direction from the upper and lower surfaces on the door end side of the lock body 4, forming an upper rod 5b and a lower rod 5c, and by operating the handle 4b for locking operation provided on the lock body 4, the upper and lower rods 5b, 5c move forward and backward in opposite directions.
Furthermore, with this device, when the door body 1 is in the closed position and the handle 4b is in the downward locked position, the deadbolt 4c protrudes from the lock body 4 toward the door edge and engages with the latch receiver 12a provided on the door edge vertical frame 12, and the upper and lower rods 5b, 5c move up and down to protrude from the door body 1, thereby locking the door body 1, which will be described later.However, since the configuration of the lock body 4 is all well known, detailed explanations will be omitted.
Furthermore, in this device, the core material (not shown) is arranged closer to the trailing edge of the trailing edge frame plate 11c, so the up and down movement of the rod 5 (both upper and lower rods 5b, 5c) is not affected by the core material.

In this embodiment, when the handle 4b is operated to move the upper rod 5b upward and protrude from the upper edge of the door body 1, the locking portion 5a provided on the upper edge of the upper rod 5b fits into and locks into the lock receiving portion 13a provided on the upper door frame 13.
On the other hand, when the handle 4b is operated to move the lower rod 5c downward and protrude from the lower edge of the door body 1, the locking portion 5a provided on the lower edge of the lower rod 5c fits into and locks with the locking receiving portion 14a provided on the door sill (sill) 14. In this way, the door body 1 of this embodiment is configured to be locked at three points: the top, bottom, and the leading edge. In this structure, the upper rod 5b is shorter than the lower rod 5c and has a smaller diameter. Of course, the upper rod 5b and lower rod 5c may have the same diameter.
In this embodiment, a locking device 20 is provided in addition to the lock body 4, but this locking device 20 is a general-purpose device provided on the door body 1, and is provided with the aforementioned operating handle 20a which operates the extension and retraction of a latch (not shown) to open and close the door body 1, and a key operating unit 20b which locks by extending and retracting a deadbolt (not shown), and is configured to allow double locking in addition to locking by the lock body 4.

In this embodiment, the short upper rod 5b has one vibration-isolating member 15, 16 located in the vertical center, while the long lower rod 5c has two vibration-isolating members 15, 16 located in the vertical center with a gap between them. The upper and lower vibration-isolating members 15, 16 each comprise L-shaped mounting brackets 15a, 16a and arc-shaped vibration-isolating rubber members 15b, 16b attached to the horizontal portions of the mounting brackets 15a, 16a. The vertical portions of the mounting brackets 15a, 16a are attached to one of the frame plates 11a by fastening means such as welding or screws (welding is used in this embodiment). At this time, as shown in Figures 14(A) and (B), the upper and lower rods 5b, 5c are designed so that their centers Y are located on the center line X of the door body 1 in the front direction, while the inner edges of the vibration-isolating rubber members 15b, 16b are biased left and right so that they abut against the corresponding rods 5b, 5c. In other words, the centers Z of the arc-shaped through holes 15c, 16c of the vibration-isolating rubber members 15b, 16b are located on the center line X of the door body 1 in the front direction, but are attached in a position biased in the front direction perpendicular to the opening and closing direction of the door body 1 relative to the centers Y of the rods 5b, 5c, and the rods 5b, 5c are attached in a position adjusted so that they abut at points against the inner edges (inner peripheral edges) of the through holes 15c, 16c.

With this configuration, when the door body 1 is a swing door, the vibration-damping material 9 is made up of mounting brackets 15a, 16a and vibration-damping rubbers 15b, 16b. By attaching the mounting brackets 15a, 16a offset in the forward/backward direction (left/right) to one of the frame plates 11a in the front-to-back direction of the auxiliary frame member 11 that forms the vertical stile, the vibration-damping rubbers 15b, 16b can be easily attached with the inner edges of the vibration-damping rubbers 15b, 16b abutting against the rods 5b, 5c.

Of course, the present invention is not limited to the embodiments described above, and in such cases the locking device is not limited to one in which the rod protrudes upward from the upper edge of the door body to lock, as in the above embodiments, but can also be implemented in the same way with a so-called drop lock system in which the rod protrudes downward from the lower edge of the door body and locks by engaging with a locking portion provided on the floor side.
Furthermore, when the vibration-proof structure of the various embodiments of the present invention is applied to a door body, it goes without saying that the door body to be applied may be either a sliding door or a hinged door.

The present invention can be used as a vibration-proof structure for locking devices on doors installed to open and close entrances to buildings such as homes and buildings.

REFERENCE SIGNS LIST 1 Door body 4 Lock body 5 Rod 5a Locking portion 5b, 5c Rod of ninth embodiment 8 Lock receiving portion 9 Vibration-damping material 9a Base portion 9b Tip portion 9c Through hole 9e Contact point 9f Bent corner portion 9g Projection portion 9h Projection portion 10 Interposition material 11 Auxiliary frame members 11a, 11b Front and rear frame plates (face plates)
13a Locking receiving portion 14a Locking receiving portion 15, 16 Vibration isolating material 15a, 16a Mounting bracket 15b, 16b Vibration isolating rubber 15c, 16c Through hole E Entrance/exit

Claims (11)

A locking device provided on a door body that opens and closes an entrance,
A lock body that is provided on the door body and performs locking and unlocking operations;
- A rod that extends from the lock body in the direction of the lock and moves in conjunction with the lock operation of the lock body;
- A locking receiving portion provided on the body side member, which is engaged with a locking portion at the tip of the rod protruding from the door body when the locking operation is performed with the lock main body, thereby restricting the opening movement of the door body;
In a door body locking device comprising:
When a vibration-isolating material having a through-hole through which a rod passes loosely is provided in the door body at the intermediate portion between the portion where the rod of the door body projects from the lock body,
A vibration-proof structure for a door body lock device, characterized in that the vibration-proof material is attached so that the inner edge of the through hole abuts against the rod. A vibration-proof structure for a door body locking device as described in claim 1, characterized in that the vibration-proof material is attached with the through-hole biased in a direction perpendicular to the opening and closing movement direction of the door body. A vibration-proof structure for a door body locking device as described in claim 1 or 2, characterized in that the door body is a sliding door that opens and closes in the left-right direction, and the vibration-proof material is attached with the through hole biased in the forward direction. The vibration-proof structure for a door body locking device according to claim 1 or 2, characterized in that the door body is a hinged door that opens and closes in the forward and backward directions, and the vibration-proof material is attached with the through hole biased in the direction of the sight. A vibration-proof structure for a door body locking device as described in claim 4, characterized in that the rod is arranged to pass loosely between the front and rear panel panels that make up the vertical stile of the door body, the vibration-proof material comprises a mounting bracket attached to one of the panel panels and a vibration-proof rubber member having a through hole attached to the mounting bracket, and the mounting bracket is attached in a state where it is biased in the forward direction relative to the panel panels. A vibration-proof structure for a door body locking device as described in any one of claims 1 to 5, characterized in that the through hole is formed with a bent corner portion, and the vibration-proof material is attached biased in a direction that abuts against the rod at two points that sandwich the bent corner portion in the opening and closing direction of the door body. A vibration-proof structure for a door body locking device as described in any one of claims 1 to 6, characterized in that multiple vibration-proof materials are provided on the rod with gaps between them. The vibration-proof structure for a door body locking device described in claim 7, characterized in that the contact positions of the multiple vibration-proof materials with the rod are offset in the circumferential direction of the rod. A vibration-proof structure for a door body locking device as described in any one of claims 1 to 8, characterized in that the inner edge of the vibration-proof material, which is biased toward the through hole, abuts against the rod. The vibration-proof structure for a door body locking device according to claim 9, characterized in that the biased inner edge is a protrusion. The vibration-proof structure for a door body locking device described in claim 9, characterized in that the biased inner edge portion is formed by providing a through hole biased relative to the vibration-proof material.