JP4407883B2 - Surface guard guard lock - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
TECHNICAL FIELD The present invention relates to a guard arm lock with a surface, and more particularly, a surface guard having a simple structure and a good appearance that allows a dead bolt that engages with the guard arm to float from the door surface to facilitate engagement with the guard arm. It relates to the arm lock.
[0002]
[Prior art]
[Patent Document 1]
As described in Japanese Patent Publication No. 3-39585, the guard arm is, for example, pivotally attached at one end to the door frame, and at the other end with the tip of a dead bolt of the guard arm lock. A lever having an engagement hole to be engaged is configured to be able to expand and contract by being engaged like a blade of a sword and a sheath, for example.
[0003]
On the other hand, the guard arm lock that engages with the guard arm is normally embedded in the door side, for example, the free side edge of the door, and can be protruded in two stages from the free side edge of the door (see FIG. 1). Is fitted so that it can appear and disappear.
[0004]
When the dead bolt 1 is protruded by one step by the thumb turn operation when the door is closed and the door is opened with the tip of the dead bolt 1 engaged with the engagement hole at the tip of the guard arm, the guard arm is moved to the tip of the dead bolt. Since the door frame and the door frame are connected, the opening angle of the door can be limited like a door chain, and the mail can be safely delivered or the visitor can be confirmed.
[0005]
Since the guard arm lock embedded in the edge portion on the free side of the door as described above can secure a wide space around the tip of the dead bolt 1, it can be easily engaged with the engagement hole at the tip of the guard arm. In other words, the design of the guard arm device is easy.
[0006]
[Problems to be solved by the invention]
However, the type of guard arm device in which the guard arm lock described above is embedded in the edge of the free side of the door is vulnerable to attacks from the outside because the guard arm arm is exposed to the external space, and is not necessarily excellent in crime prevention performance. The grudge that there is no remains.
[0007]
On the other hand, the so-called face lock that exposes the lock box to the interior of the door and attaches it to the inner surface of the door allows the dead bolt to be placed closer to the suspending side than the free side edge of the door. The arm can be concealed indoors, and the crime prevention performance of the guard arm device is improved.
[0008]
However, since the surface lock has a small distance between the dead bolt and the inner surface of the door, there is another disadvantage that it is difficult to engage the tip of the dead bolt with the engagement hole at the tip of the guard arm.
[0009]
The present invention eliminates the inconveniences described above, makes it possible to easily engage the guard arm by lifting a dead bolt that engages the guard arm from the door surface, and has a simple structure and good appearance. It is intended to provide.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is a plate-like body mounted near the free side edge of the door inner surface, and three or more contoured protrusions are projected into the indoor side by plastic working. And a mounting plate having a female screw hole opened at the top of each projection, and a deployment pattern identical to the deployment pattern of the projection on the mounting plate, and the mounting screw hole is formed so as to penetrate in the thickness direction. A lock box fitted with a dead bolt that can protrude in stages so that it can protrude from the front plate, and a shallow box that opens on one side and can hold the lock box inside. The mounting screw insertion hole is opened with the unfolded pattern and a case with a part of the side plate notched to expose the front plate of the lock box is provided, and the lock box is placed on the projection group of the mounting plate. while covering the lock box, the projection and the same number of attachment of the mounting plate The top end of the protrusion of the mounting plate is inserted through the mounting screw insertion hole that opens in the case and the mounting screw hole that penetrates the lock box in the thickness direction in order from the indoor side to the inner surface of the door. The lock box is screwed to the mounting plate by being screwed into a female screw hole opened in .
[0011]
The invention according to claim 2 is characterized in that the front plate of the lock box is asymmetric in the width direction with respect to the dead bolt so as to cover the gap between the outer plate of the lock box and the inner surface of the door. To do.
[0012]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
3 and 4, reference numeral 2 denotes a mounting plate. The mounting plate 2 in the illustrated embodiment is a plate-shaped body having a rectangular outer shape, and the inner surface of the door by a plurality of mounting screws 3 and 3 (see FIG. 4). 4 is attached.
[0013]
The mounting plate 2 is provided with three or more (four in the illustrated embodiment) contoured projections 5 and 5 so as to protrude toward the indoor side by plastic working such as pressing. A mounting screw hole (female screw hole) not numbered is opened at the top of the protrusion (in the illustrated embodiment, the top surface of the truncated cone diameter).
[0014]
The reason why the number of protrusions is set to three or more is that the position of the lock box becomes unstable unless the number of protrusions contacting the side surface of the lock box is three or more when the lock box described later is mounted. .
[0015]
On the other hand, in FIG. 1 and FIGS. 3 to 5, reference numeral 6 denotes a lock box, and the lock box 6 in the illustrated embodiment includes a center axis of the dead bolt 1 and a rotation axis of the dead cam 7 as shown in FIG. Are arranged on the same horizontal plane.
[0016]
The center axis of the dead bolt 1 passes through the front surface of the lock box 6, that is, the center of the surface on which the front plate 8 (see FIGS. 1, 2, and 5) of the lock box 6 is mounted. The shape and dimensions are set.
[0017]
In other words, the center axis of the deadbolt 1 is parallel to the horizontal plane passing through the center in the vertical direction of the lock box and the outer surfaces 6a and 6a (see FIG. 2) of the side plates of the lock box, and the vertical plane passing between these The line of intersection with
[0018]
In order to arrange the center axis of the dead bolt 1 as described above, as shown in FIG. 1, the entire shape is a substantially L shape, and the slider 9 is guided so as to be movable in the front-rear direction perpendicular to the front plate 8. Are provided in the lock box, and the first and second driven cutouts 11 and 12 are formed in the horizontal portion at different positions in the paper plane direction.
[0019]
On the other hand, the dead bolt 1 is mounted on the vertical portion in front of the slider 9, and the mounting position is appropriately set so that the center axis of the dead bolt 1 passes through the center in the vertical direction of the lock box.
[0020]
Further, by appropriately setting the mounting position of the slider 9 in the paper surface direction in FIG. 1 and the mounting position of the dead bolt 1 in the paper surface direction in the slider 9, the dead bolt 1 is disposed at the center on the front surface of the lock box as described above. can do.
[0021]
The first and second engaging portions 7a and 7b of the dead cam 7 are disposed in the same elevation as the first and second driven notches 11 and 12 of the slider, respectively, and when the guard arm device is operated, the thumb turn 10 is interposed. The dead cam 7 is rotated 45 degrees clockwise, and when the first engaging portion 7a rides on the first stop portion 13 of the slider, the dead bolt 1 is protruded by one step.
[0022]
At this time, the tip of the dead bolt having the constriction 15 (see FIG. 1) formed at the tip engages with the engagement hole at the free end of the guard arm, and the guard arm device operates in the same manner as described above.
[0023]
Further, after the door is closed, the dead cam 7 is further rotated 45 degrees clockwise through the thumb turn, and when the second engagement portion 7b of the dead cam 7 rides on the second stop portion 14 of the slider, the dead bolt 1 Is inserted into the strike hole of the door frame 20 so as to penetrate the free end of the guard arm (see FIG. 4), and the door is thus locked.
[0024]
In addition, since the structure of a lock box of the above guard arm lock | rock, an effect | action, etc. are known, further detailed description is abbreviate | omitted.
[0025]
On the other hand, when the lock box having the above-described configuration is mounted on the inner surface of the door, the case 16 covers the lock box 6.
[0026]
The case 16 is a shallow box-shaped member made of, for example, a synthetic resin having an opening on one side, covers the lock box 6 with the opening directed toward the inner surface of the door, and an attachment screw insertion hole 19 (see FIG. 3) and mounting screws 17 and 17 (see FIG. 3 and FIG. 4) that pass through the lock box 6 and screw into the mounting screw holes at the top of the protrusion 5 and are attached to the inner surface of the door via the mounting plate 2. The
[0027]
Therefore, as shown in FIG. 5, mounting screw holes and mounting screw insertion holes 18 and 19 are opened on the side surfaces of the case 16 and the lock box 6 in the same development pattern as the development patterns of the protrusions 5 and 5.
[0028]
In the illustrated embodiment, as shown in FIG. 5, the development patterns of the protrusions 5, 5 and the mounting screw holes 18, 18 are rectangular and are arranged symmetrically with respect to the center axis of the dead bolt 1. Therefore, it is considered that the lock box can be mounted on the door surface even if it is turned upside down in FIG. This point will be described in detail later.
[0029]
Further, as shown in FIGS. 2 and 4, the side surface of the case 16 that faces the door frame 2 is partially cut away to expose the front plate 8.
[0030]
In the illustrated embodiment, as shown in FIGS. 1 to 4, the projected shape of the case 16 onto the door inner surface 4 is set to be the same as the outer shape of the mounting plate 2, and the side edge of the mounting plate when mounted However, if the outer shape of the mounting plate is slightly reduced, the mounting plate can be hidden in the case 16.
[0031]
Furthermore, in the illustrated embodiment, as shown in FIG. 2, the width of the front plate 8 is asymmetric with respect to the guard arm 1 so as to cover the gap between the side plate outer surface 6a of the lock box and the inner surface of the door. It has become.
[0032]
The guard arm lock with a surface according to one embodiment of the present invention configured as described above is mounted on the door inner surface 4 in advance by the mounting screw 3 as described above or as shown in FIGS. Screw onto the mounting plate 2.
[0033]
That is, the lock box 6 stored in the case 16 is placed on the projection groups 5 and 5 of the mounting plate 2, and the mounting screw 17 is inserted through the mounting screw insertion hole 19 of the case and the mounting screw hole 18 of the lock box. , 17, the case 16 and the lock box 6 are screwed to the mounting plate 2.
[0034]
In the illustrated embodiment, in order to conceal the mounting screw hole 18 and the mounting screw 17 that open on the upper surface of the case 16, as shown in FIGS. 6 and 7, the screw concealment has an L-shaped cross section and is entirely curved. The structure 21 covers the recessed portions at both ends of the case 16.
[0035]
That is, the pair of first engaging claws 21a and 21a protruding from one end of the screw concealment 21 are engaged with the first receiving holes 16a and 16a at the end of the case 16 shown in FIG. The second engaging claw 21 b (see FIG. 6) projecting from the housing 16 is snapped into the recessed portion 16 b of the case 16.
[0036]
Moreover, the guard arm lock with a surface by the Example of illustration can respond to the right-and-left right of a door. By the way, in the applicant company, for example, in the applicant company, when looking at the door from the side where the door opens, the door is hung right (hinge) is called the right hand, and the left hand is the left hand. Yes.
[0037]
In order to change the left and right sides, as shown in FIG. 9, the case 16 (not shown in FIG. 9) and the lock box 6 are rotated by 180 degrees while being integrated, and until then, protrudes to the left in the figure. The dead bolt 1 attached so as to be protruded to the right side.
[0038]
In terms of ergonomics, it is desirable that the rotation direction of the lock end portion of the thumb turn 10 coincides with the direction in which the dead bolt protrudes, and if the lock box is simply rotated counterclockwise as described above, The direction of rotation is reversed (see the direction of the flat connecting hole of the dead cam 7 in FIG. 9).
[0039]
Therefore, in order to change the left / right direction without changing the rotation direction of the thumb turn, as shown in FIG. 10, the lock box 6 and the case 16 are once disassembled and the front plate 8 is viewed from the front side upside down. After being screwed to the front, the lock box is turned upside down with the same vertical direction, and the case 16 is housed in the lock box in this state and attached to the mounting plate 2.
[0040]
In this case, as is apparent from the connection hole of the dead cam 7 shown in FIG. 10, the left and right sides can be changed while the thumb turn is preferably kept ergonomically.
[0041]
In addition, whether the lock box is mounted upside down or mounted upside down, the mounting screw holes are arranged symmetrically with respect to the center axis of the dead bolt, so the left and right sides can be changed without changing the thumb turn position. Needless to say, it can be changed.
[0042]
【The invention's effect】
As is apparent from the above description, the guard arm lock with a surface according to the present invention secures a necessary and sufficient clearance between the door inner surface 4 and the dead bolt 1 in the mounted state as shown in FIG. It is possible to operate the guard arm lock with a face which has been difficult in the past.
[0043]
In addition, the lock box can be displaced from the free side edge of the door to the suspending side as a surface locking feature, so the guard arm can be concealed inside the door, preventing attacks on the guard arm. It is possible to improve the safety of the guard arm device.
[0044]
Furthermore, since the lock box is completely stored in the case and hidden, various effects such as good appearance can be obtained.
[Brief description of the drawings]
FIG. 1 is a partially sectional side view of a guard arm lock with a surface according to one embodiment of the present invention.
FIG. 2 is a front view of a guard arm lock with a surface according to one embodiment of the present invention.
FIG. 3 is a cross-sectional view of a faced guard arm lock as viewed from the front according to one embodiment of the present invention.
FIG. 4 is a partially sectional plan view of a guard arm lock with a surface according to one embodiment of the present invention.
FIG. 5 is a side view of a lock box.
FIG. 6 is a plan view of a screw concealment.
7 is a cross sectional view taken along line VII-VII in FIG.
FIG. 8 is a partial plan view of the case.
FIG. 9 is a diagram for explaining the case where the lock box is counter-rotated to change the left and right hand.
FIG. 10 is a diagram for explaining the case where the lock box is turned over to change the left and right hand.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Dead bolt 2 Mounting plate 3 Mounting screw 4 Door inner surface 5 Protrusion 6 Lock box 7 Dead cam 8 Front plate 10 Thumb turn 16 Case 17 Mounting screw 18 Mounting screw hole 19 Mounting screw insertion hole 20 Door frame 21 Screw concealment

Claims (2)

A plate-like body mounted near the free side edge of the inner surface of the door, and a mounting plate in which three or more contoured projections are projected on the indoor side by plastic working and a female screw hole is opened at the top of each projection; The lock is formed so that the mounting screw hole is penetrated in the thickness direction with the same development pattern as the projection pattern of the projection of the mounting plate, and a dead bolt that can protrude in two stages is fitted in and out of the front plate. The box is a shallow box that is open on one side and can hold the lock box inside.It opens the mounting screw insertion hole with the same expansion pattern as the protrusion pattern on the mounting plate, and the front of the lock box. A case with a part of the side plate notched to expose the plate, and mounting the lock box on the projection group of the mounting plate and covering the lock box with the case, mounting the same number of projections as the mounting plate From the inside of the door to the inner surface of the door Opening the the mounting screw insertion holes into the case, by screwing in the opened female screw hole in the top of the projections are passed through the mounting screw hole mounting plate through the lock box in the thickness direction, screw lock box to the mounting plate A guard arm lock with a surface, characterized by being stopped.   The guard arm according to claim 1, wherein the front plate of the lock box is asymmetric in the width direction with respect to the dead bolt so as to cover a gap between the outer plate of the lock box and the inner surface of the door. Tablets.

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