JP2013060717A5 - - Google Patents

Description

Joinery latch lock

  The present invention relates to a latch for a joinery provided with an internal / external pressure difference eliminating device for a hinged door of a house, a high-rise apartment, or the like.

  Patent Document 1 relates to an internal / external air pressure difference canceling device for a hinged door, as in the present invention. For example, referring to FIG. A handle plate 15 fixed to the wall surface and a handle 15 rotatably provided through a handle shaft 18, and a pinion fixed to the inner end of the handle shaft 18 of the handle and located in the lock box 17 14 and a rack 13 engaging (meshing) with the pinion on the upper surface of one side, and a sliding type pressing member 12 having a tip 16 formed in an inclined shape, and opposed to the inclined surface of the pressing member 12 The sliding engagement member 12 is provided with an inclined surface (contact portion) 7 on the door frame side, and when the door is opened, the inclined engagement front end surface of the sliding-type pressing member 12 is displaced by the operating force of the handle 15. When pressed against the inclined surface (contact part) 7, the front Contact surface 4 slopes each other acts portion of the projecting component force of the sliding pushing member 12 in the direction of opening the door 2 (reference numerals in Patent Document 1).

  However, since the basic principle of Patent Document 1 is “to try to give a part of the component force in the opening direction to the door itself by prying open the door”, the pressing body against the contact portion on the door frame side The pressure contact force cannot be fully exerted on the door. Further, since the rack 13 and the pinion 14 are constituent elements, the handle 15 is limited to one that rotates parallel to the wall surface of the door.

  Patent Document 2 relates to an internal / external air pressure difference elimination device in a latch lock provided with an inversion latch. Similarly to Patent Document 1, the internal / external air pressure difference eliminating device described in Patent Document 2 also has a “latch-shaped projecting rod” that goes straight in the projecting direction. It tries to give a part (component force) of the reaction force.

  By the way, Patent Documents 3 to 5 describe one using a “reversed latch” as an example of a latch member constituting the latch lock. In each of these patent documents, an “operating protrusion” that basically is provided at the pivoted base end of an “inverted latch” and a push-pull type operating member and penetrates a window formed in the lock box of the latch lock. For example, a drive cam that is rotated by the displacement of the operating protrusion and one or more locking pieces that are rotated via an interlocking mechanism that cooperates with the drive cam are interposed between the two pieces and the door is opened. When the push-pull type operating member is pulled or pushed in a direction to contact or separate from the wall surface of the door, the operating projecting piece moves in a horizontal direction or a vertical direction, whereby the driving cam is temporarily locked by the latch. The door can be opened with a predetermined amount of rotation in the direction of unraveling and holding the operation member (known or obvious).

Japanese Utility Model Publication No. 3-105569 Patent No. 4034216 Japanese Patent Laid-Open No. 2001-227210 (particularly FIG. 4) JP 2008-50864 (particularly FIG. 1) JP 2008-280752 A

  The intended purpose of the invention of this application is not “to try to give a part of the component force to the door itself in the opening direction by prying open the door” as in Patent Document 1 and Patent Document 2, but the principle of lever Is to solve the problem that it is difficult to open the door (by different solutions). The second purpose is to sufficiently exert the pressing force of the swing-type pressing body against the contact portion on the door frame side with respect to the door. A third object is to reduce the number of components and easily incorporate the lock box. The fourth purpose is that, for example, a push-pull type handle can also be used. The fifth object is to ensure that the sliding control body and the swing-type pressing body that follows or cooperates with the sliding control body operate reliably.

The latch lock for joinery of the present invention is provided so as to be able to rotate by a predetermined amount in the direction of contact with and separating from the wall surface through a seat plate fixed to the wall surface of the door, and its operating protrusion is provided at the free end of the door. An operation member that enters the lock box from the window of the lock box , and slides toward the front side of the lock box based on the pressing force of the operating protrusion and against the biasing force of the biasing means. A sliding control body that engages with the sliding control body directly or via a mediating member, and that releases the regulation of the latch member during the movement of the sliding control body, and the sliding control body And a swing-type pressing body that is connected to the front end portion of the front end portion via a linkage means and has an engaging front end portion that is pivotally supported via a vertical shaft and always protrudes from the front side. become, during door opening, said work is located displaced by at least the operating member When the engaging tip of the swing-type pressing body is pressed against the contact portion on the door frame side by the lever principle through the protrusion and the sliding control body, the reaction force based on the pressing force opens the door itself. It is characterized by comprising an internal / external air pressure difference eliminating device for a hinged door acting in the direction.

Further, the latch lock for joinery of the present invention is provided so as to be able to rotate by a predetermined amount in a direction contacting and separating from the wall surface through a seat plate fixed to the wall surface of the door, and the operating projecting piece is provided at the free end portion of the door. An operation member that enters into the lock box from the window of the provided lock box , and on the front side of the lock box based on the pressing force of the operating protrusion and against the biasing force of the biasing means A sliding control body that slides, a latch control member that engages the sliding control body directly or via an intermediate member, and that releases the control of the latch member during the movement of the sliding control body, and the sliding control Swing-type pressing that engages with the front end of the body via an engagement means having a slight gap and has an engagement front end that is pivotally supported via a vertical shaft and always protrudes from the front side on the front end side. And at least before the position is displaced by the operation member when the door is opened When the engaging tip of the swing-type pressing body is in pressure contact with the contact portion on the door frame side by the lever principle via the operating protrusion and the sliding control body, the reaction force based on the pressure contact force is applied to the door itself. An internal / external air pressure difference eliminating device for a hinged door that acts in the opening direction is provided.

Here, the “sliding control body” has a gap with the swing-type pressing body, and has a function of pressing the swing-type pressing body after the restriction of the latch member is released during operation.

(A) By means of a solution different from Patent Document 1 and Patent Document 2 (using a kicking force against the contact portion), a gap is created between the door open / close end of the door and the door frame, and the atmospheric pressure difference between the interior and the exterior Can be eliminated.
(B) The pressure contact force at the engagement tip of the swing-type pressing body is not the “component force in the straight direction” as in Patent Document 1 and Patent Document 2, and almost all of the reaction force acts in the direction of opening the door. Therefore, the pressure contact force of the swing-type pressing body against the contact portion on the door frame side can be sufficiently exhibited.
(C) Either a push-pull type handle or an assist lever can be employed.
(D) Since there are few components to configure, it can be easily incorporated into the lock box. Further, the sliding control body and the swing-type pressing body that follows or cooperates with the sliding control body do not fall apart and operate reliably.

1 to 13 are explanatory views showing a first embodiment of the present invention. FIGS. 14 to 18 are explanatory views showing a second embodiment of the present invention. 19 and 20 are explanatory views showing a third embodiment of the present invention. 21 and 22 are explanatory diagrams showing a fourth embodiment of the present invention. 23 and 24 are each explanatory views showing a fifth embodiment of the present invention.
The environmental explanatory view showing the member on the door frame side and the member on the door side. Explanatory drawing of the initial state which looked at the lock box of the latch lock longitudinally. Environmental explanatory drawing from the planar view which shows the positional relationship of the principal part (The operation member is abbreviate | omitted). FIG. 3 is an exploded perspective view of a swing type pressing body, a sliding control body, and the like that constitute a main part. The schematic cross-section explanatory drawing of a swing type press body. Explanatory drawing from planar view which shows the connection structure of the principal part. 7-7 schematic cross-sectional explanatory view of FIG. The schematic cross-section explanatory drawing of the principal part (door frame side). Schematic explanatory drawing from the front view of FIG. FIG. 10 is a sectional view taken along line 10-10 in FIG. 8; The explanatory view from the side view in which the swing type pressing body was pushed out in FIG. Explanatory drawing from the planar view by which the swing type press body was extruded. Explanatory drawing which shows the flow from planar view. Explanatory drawing which shows 2nd Embodiment of this invention (initial state). Explanatory drawing from planar view. In FIG. 14, explanatory drawing of the state by which the sliding control body was pressed by the rear wall side of the lock box. Explanatory drawing from the planar view by which the swing type press body was pulled. Explanatory drawing which shows the flow of the principal part from planar view. Explanatory drawing which shows 3rd Embodiment of this invention (initial state). Explanatory drawing which shows 3rd Embodiment of this invention (state which the swing type press body was extruded). Explanatory drawing which shows 4th Embodiment of this invention (initial state) FIG. 22 is an explanatory diagram of a state where the regulation of the inversion latch is released and the swing type pressing body is pushed out in FIG. 21. Explanatory drawing which shows 5th Embodiment of this invention (initial state). FIG. 24 is an explanatory diagram of a state in which the regulation of the inversion latch is released and the swing type pressing body is pulled in FIG. 23.

  1 to 13 are explanatory diagrams showing a first embodiment of the present invention.

(1) Environmental Member / Prerequisites of the Present Invention An environmental member will be described with reference to FIGS. First, FIG. 1 is an environmental explanatory view showing a door frame side member and a door side member. In particular, FIG. 1 is a perspective view showing the outer wall surface of the door 7 and the front of the lock box 8. In this figure, 1 is a door frame for an entrance door, and a lock receiver 2 as an example of a receiving member is fixed to the vertical frame of the door frame 1 in the vertical direction. The receiving member 2 is formed with a dead receiving hole 3, a latch receiving hole 4, and a notch portion 5 for a swing type pressing body in order from above. The width (longitudinal width and lateral width) of the cutout portion 5 corresponds to the width of the engaging tip portion 27b of the swing type pressing body 27 described later. In the present embodiment, the width of the engagement tip portion 27b is formed in a plate shape, so that the vertical width of the cutout portion 5 is narrow.

  Further, the door frame 1 has a door frame 6 and a notch-like recess for attaching the receiving member 2 (described later). Although not an essential matter of the present invention, depending on the embodiment, the door stop 6 is appropriately provided with a packing (gasket) for sealing a gap between the door stop 6 and the door 7.

  Therefore, if the door 7 is an opening / closing body that opens in the outdoor direction, the interior side of the door 7 has a negative pressure, so that the inside of the opening / closing end portion 7a of the door 7 (the inner wall surface on the far side in FIG. 1) passes through the packing. Pressed against the door stop 6 without or intervening.

  On the other hand, a lock box 8 of a latch lock X is housed in the open / close end 7a on the side opposite to the hanging base of the door 7. Here, the “latch lock” is a lock having a latch member called a latch bolt or a reverse latch, and excludes a lock lock having only a dead bolt. Accordingly, a lock having only a latch bolt, a latch bolt or a reversing latch, and a lock having a dead bolt (for example, a front door lock) is included in the lock X here. It is compatible with “Latch Lock X with Inverted Latch” as in 2 etc.

  As shown in FIG. 1, a lever handle 9 as an example of an outer operation member is provided on the outer wall surface side of the lock box 8 of the lock or latch lock X (that is, the outer surface of the door 7). . In addition, a cylinder lock in which a key hole (not shown) appears on the outdoor side of the door 7 is provided. On the other hand, a lever handle 11 as an example of an inner operation member is provided on the indoor side of the door 7. A thumb turn device (not shown) is provided so as to be positioned on the axis of the cylinder lock.

  In FIG. 1, the inner and outer lever handles 9 and 11 as an example of the operation member are illustrated in a simplified manner. However, since the main part of the latch lock X is an internal / external air pressure difference canceling device for a hinged door, the operation member is desirable. Employs either a push-pull type handle or an assist lever that moves (rotates) in the direction of contact / separation (arrow A) with respect to the wall surface of the door 7.

  Reference numeral 2A denotes a reinforcing piece fixed to the front surface of the vertical frame of the door frame 1 orthogonal to the receiving member 2. The reinforcing piece 2A forms a notch in the vertical frame, and is for reinforcing it. It is. Reference numeral 10 denotes a seat plate for the lever handle 9, and 12 denotes a support shaft for the lever handle 9. Although not shown in particular, the inner lever handle 11 can also be rotated by a required amount in the direction of contacting and separating from the wall surface via the inner seat plate and the support shaft in the same manner as the lever handle 9.

  In the above configuration, if the door 7 is an opening / closing body that opens in the outdoor direction, the inner side of the opening / closing end portion 7a of the door 7 (the inner wall surface on the far side in FIG. 1) is caused by negative pressure on the indoor side. , Pressed against the door. Therefore, there is a problem that it is difficult to open the door 7, and in order to solve the problem, a latch lock X for joinery provided with a new “internal / external air pressure difference elimination device” is proposed.

(2) Main part of the present invention The latch for joinery of the present invention is provided by operating means 9 and 11 having operating protrusions 9a and 11a on the door 7 to the lock box 8 side, and the operating force of the operating means. A sliding control body 24 that slides on either the front 8a side or the rear wall 8b side of the box 8, a single or plural urging means 23, and a swing-type pressing body 27 that applies the principle of leverage are provided. In addition, it is only necessary that the contact portion 28 with which the engaging tip 27b of the swing type pressing body 27 is in pressure contact with the door frame 1 side.

That is, for example, as shown in FIG. 2 and FIG. 3, the internal / external air pressure difference elimination device of the main part is placed in a direction in which it contacts and separates from the wall surface via the seat plate 10 and the support shaft 12 fixed to the wall surface of the door 7. It is provided so as to be able to rotate by a fixed amount, and its operating protrusions (inner ends) 9a, 11a enter into the lock box 8 from a pair of windows 53 inside and outside the lock box 8 provided at the free end 7a of the door 7. The front side of the lock box (first embodiment) based on the pressing force of the operating members 9 and 11 and the operating protrusions (inner end portions) 9a and 11a and against the biasing force of the biasing means , The third embodiment) or the rear wall 8b side (second embodiment) and a sliding control body 24 that engages with the sliding control body directly or via an intermediate member, and a latch restricting member for solving the restriction of the latch member during movement of the dynamic control member, the gap at the tip portion of the sliding control element 24 8 with are connected via the linking mechanism 19 with, it is pivotally supported via a vertical shaft 26, and swing-type pressing member having an engaging tip 27b to always protrude from the front 8a at its front end portion 27 When the door is opened, the engagement tip 27b of the swing-type pressing body is a door through the operating protrusion (inner end) and the sliding control body that are displaced at least by the operation members 9 and 11. When pressed against the contact portion 28 on the frame 1 side, all reaction forces based on the pressure contact force act in the direction of opening the door 7 itself.

(3) Specific configuration of each member The specific configuration of each member will be described. First, the operation members 9 and 11 will be described. As shown in FIG. 1, an outer lever handle 9 or an assist lever 9 separate from the outer lever handle horizontally moves a seat plate 10 whose horizontal shaft portion 9 a is fixed to the outer wall surface of the door 7. The operating protrusion (inner end) 9a of the shaft portion 9a passes through the window 53 shown in FIG. 2 and protrudes into the lock box 8, and in this embodiment, the sliding control body 24 It is possible to engage (contact) the vertical end surface of the rear end portion.

  Since the base end portion of the shaft portion 9 a of the operation member 9 is pivotally supported by the support shaft 12 that is installed in the direction perpendicular to the seat plate 10, the grip portion 9 b of the operation member 9 is attached to the wall surface of the door 7. On the other hand, it moves (rotates) by a predetermined amount (predetermined angle) in the direction of contact / separation (arrow A in FIG. 1).

  Therefore, the operation protrusion piece (inner end portion) 9a of the first embodiment can be displaced in the horizontal direction toward the front 8a side of the lock box 8. In this respect, the inner lever handle 11 shown in FIG. 1 or the assist lever 11 separate from the inner lever handle is the same as the outer operation member.

  In this embodiment, the operation protrusions (inner end portions) 9a and 11a of the shaft portion of the lever handle are slid without using a drive cam that is fixedly fitted to the inner end portion of the shaft portion of the lever handle. The rear end portion of the control body 24 is directly pressed (reduction in the number of parts). Of course, the number of parts is increased and, for example, one or more mediating members are disposed on the rear end portion or rear end portion side of the operating protrusions (inner end portions) 9a, 11a of the shaft portion and the sliding control body 24. Embodiments are also conceivable.

  Next, the sliding control body 24 will be described with reference to FIGS. 4 and 7, for example. The sliding control body 24 is disposed in the lower space in the lock box 8 so as to advance and retreat in the same direction as the latch member (reversed latch) 50 disposed in the upper space of the lock box 8.

  As shown in FIG. 4, the sliding control body 24 of the embodiment is a block body that receives the impression of “pistol shape” as a whole, but the upper surface 15 thereof is formed in a stepped shape. That is, reference numeral 15a is a low flat front upper surface on the tip 24a side, 15b is an uphill-shaped central inclined surface 15c continuous to the front upper surface, and a flat upper rear upper surface continuous to the central inclined surface. , 15d is a rearward inclined surface having a downward slope that is further continuous with the rear upper surface.

  In addition, a horizontal guide slot 16 is formed at the center of the left and right vertical side surfaces to be guided by guide pins fixed to the lock box 8 side.

  In addition, a plurality of guide protrusions 24c that are engaged with a horizontal guide portion provided on the lock box 8 side are appropriately provided at the front end portion 24a and the rear end portion 24b of the sliding control body 24. Thereby, the sliding control body 24 is thrust in a stable state, and stopped at a predetermined position by the plurality of guide protrusions 24c having a stopper function.

  Further, the stepped tip portion 24a which is thinner than the rear end portion 24b has a vertical side surface and a tip surface cut into a horizontal T shape, and the protruding shape of the connecting projection piece 19 having a U shape in a plan view is formed in the cutout portion 17. The rear end portion 19a is fixedly fitted from the side. The connection protrusion 19 is connected to a movable connection pin (connection shaft) 31 that engages with the inside of the distal end portion 19 b of the connection protrusion 19.

Therefore, the linking means for connecting the sliding control body 24 and the swing type pressing body 27 to be described later is a substantially U-shaped connecting projection piece 19 provided on the sliding control body 24 in a plan view and the swing type pressing body 27. Is provided with a gap 18 for timing (see FIG. 6). (See FIG. 13).

  In addition, in the embodiment, a spring receiving portion 24 d that supports the rear end portion of the urging means 23 projects downward in a portion near the front end portion of the bottom surface of the sliding control body 24.

  By the way, in the embodiment, the connecting projection piece 19 is formed separately from the sliding control body 24, but of course, it may be formed by protruding at the tip of the sliding control body 24. In addition, description of the detailed structure of the sliding control body 24 is omitted.

  Next, the swing type pressing body 27 will be described. The swing-type pressing body 27 is followed by or cooperating with the forward / backward movement of the sliding control body 24 and can be rotated by a predetermined amount in the horizontal direction by one or a plurality of vertical shafts 26 and upper and lower bearing members 33, 33. Is supported near the front 8 a in the lock box 8.

  The swing-type pressing body 27 may be formed as a block body similarly to the sliding control body 24. However, in this embodiment, the swing-type pressing body 27 is formed as a small plate body and basically has a thick wide rear end (inside End) 27a and a thin engaging tip 27b connected to the wide rear end like a thumb, and a vertical shaft 26 is provided on one side of the wide rear end 27a, The aforementioned movable connecting pin (connecting shaft) 31 is integrally provided on the other side of the wide rear end portion 27a.

  In other words, the wide rear end portion 27 a of the swing type pressing body 27 is connected to the tip end portion of the sliding control body 24 via the connecting shaft 31, and the connecting shaft 31 is connected to the connecting projecting piece 19 of the sliding control body 24. When engaged inside the tip 19b, there is a slight gap 18 between the connecting projection 19 and the end surface of the connecting portion of the sliding control body 24 as shown in FIG.

  Here, with reference to FIG. 3, the linkage structure of the sliding control body 24 and the swing type pressing body 27 will be described. When the swing-type pressing body 27 is pivotally supported in the lock box 8 via the vertical shaft 26, in a normal state in which the operation member is not operated, the rear edge a is brought into contact with the door frame side substantially orthogonal thereto. The edge b on the side facing the portion 28 intersects the inner wall surface of the wide side wall of the lock box 8 at substantially equal angles (for example, 45 degrees).

  An outdoor side edge c intersecting with the rear side edge a is an arc or a curve or a vertical line coming into contact with the inner wall surface of the wide side wall of the lock box 8, and the contact part 28 on the door frame 1 side. The width of the edge b on the opposite side and the edge c of the outdoor side are gradually narrower toward the vicinity of the tip. The above-described finger-like engagement tip portion 27 b always protrudes from the front 8 a of the lock box 8.

  In addition, the lower bearing member 33 described above has a bearing function for the swing-type pressing body 27 and an unnumbered spring end support portion facing the spring receiving portion 24c, and supports the distal end portion of the biasing means 23. It also has a function to

(4) Contact part on the door frame side FIG. 8 is a schematic cross-sectional explanatory view of a main part (door frame side), FIG. 9 is a schematic explanatory view from the front, and FIG. 10 is a cross-sectional view. The contact portion 28 on the door frame 1 side will be described with reference to these drawings. In this embodiment, as shown in FIG. 1, the abutting portion 28 is disposed on the back side (for example, Troyoke) of “a single strike plate” having the dead receiving hole 3 and the latch receiving hole 4. Of course, depending on the design, the well-known strike plate or the like and the receiving device of the internal / external air pressure difference elimination device having the contact portion 28 may be formed separately.

  The contact portion 28 basically includes a support bracket 41 fixed in the receiving member 2 and a vertical roller 42 pivotally supported on the support bracket 41. The support bracket 41 is fixed to a notch-shaped recess 43 formed in the door frame 1, and extends toward the front 8 a (the mouth of the door 7) of the lock box 8 with respect to the bottom surface of the recess 43. Configured as follows.

  The vertical roller 42 is provided at the tip of the support bracket 41 via a roller vertical shaft 44. The recess 43 to which the support bracket 41 is fixed is shaped to have a bottom surface that is deeper than the inner space of the receiving member 2 or the receiving member separate from the receiving member 2 and spaced from the front 8 a of the lock box 8. In addition, the door 7 has a shape in which the opening direction side is open, and the door frame 1 of the building is formed like a stepped portion toward the outdoor side.

  By the way, the position of the vertical roller 42 supported by the support bracket 41 is not on the center line “O” of the front 8a or the sliding control body 24, for example, as shown in FIG. The position is slightly eccentric to the vertical shaft 26 side of the swing type pressing body 27. On the other hand, the connecting shaft 31 of the swing-type pressing body 27 is located at a position slightly eccentric to the outside of the center line “O”.

  Therefore, in the normal state, the vertical surface side having the edge b on the side facing the abutting portion of the vertical roller 42 and the swing type pressing body 27 is opposed to the center line “O” with a required interval. ing.

(5) Intermediary member 46, latch restricting member 54, latch member 50
FIG. 2 is an explanatory view of an initial state of the lock box as viewed in a longitudinal section, while FIG. 11 is an explanatory view from a side view in which the swing type pressing body 27 is pushed out in FIG. In the present embodiment, first, the mediating member 46 is disposed between the one latch regulating member 54 and the sliding control body 24.

  The form of the intermediate member 46 can be arbitrarily changed in design. For example, the base end 46a is pivotally supported by a horizontal shaft 47 provided near the center of the rear wall 8b of the lock box 8, Engagement freedom extending from the base end portion 46a below the rear end portion of the latch restricting member 54 and above the uphill-shaped central inclined surface 15c of the sliding control body 24 so as to be intervened (submerge). An intermediate spring 48 having an end portion 46b and having a central portion wound around the horizontal shaft 47 causes the downward inclined surface of the bulging engagement free end portion 46b to face the upward inclined central inclined surface 15b. It is urged to press contact in contact.

  2 and 11 use “inverted latch 50” as an example of a latch member constituting the latch lock X. Therefore, 51 is a reverse latch spring provided in the latch frame 52. The specific structure of the latch lock X, which is a combination of the reversing latch 50 and the push-pull type operating members 9 and 11, is already known or obvious as seen in, for example, Patent Document 3 to Patent Document 5, Details are omitted.

  The latch restricting member 54 is also referred to as a “locking piece” and is already known or obvious like the reverse latch 50, and the details thereof are omitted. In this embodiment, the latch restricting members 54 and 54 are linked. A pair of upper and lower locking pieces interlocking with each other via a central shaft 54a corresponding to the inner end portion is employed, and the upper and lower latch restricting members 54 are respectively supported by upper and lower support shafts 55 and 56 to be pointed. .

  The lower latch restricting member 54 pivotally supported by the lower support shaft 56 has an engagement receiving portion 54c that is connected to the front end engagement portion 54b and extends in a horizontal direction rearward of the support shaft 56. The lower surface of the engagement receiving portion 54c is engaged with the upper semicircular arc-shaped outer surface of the bulging engagement free end portion 46b of the intermediate member 46 described above. The operating protrusions 9a and 11a provided at the pivot base end portions of the push-pull type inner and outer operation members 9 and 11 project into the lock box 8 from a window 53 formed on the side wall of the lock box 8. Yes.

  FIG. 11 thru | or FIG. 13 is each explanatory drawing which shows the effect | action of the principal part. Referring first to FIG. 11, (a) for example, when the operating protrusion 9a is displaced in the direction of arrow B, the vertical rear end surface of the rear end portion 24b of the sliding control body 24 is pushed by the operating protrusion 9a. (B) When the sliding control body 24 is pressed by the operating protrusion 9a, it slides to the front 8a side in the same direction as the operating protrusion 9a via the guide means 16 and 24c, (c). When the sliding control body 24 starts to slide toward the front 8a, the engaging tip 46b of the mediating member 46 is pushed up to the flat rear upper surface 45c by the upward inclined central inclined surface 15c, (d) When the engagement tip 46b of the mediating member 46 is pushed up by the sliding control body 24, the upper and lower latch restricting members 54 rotate simultaneously in the direction of releasing the restriction of the latch member 50 with the support shafts 55 and 56 as fulcrums, (E) The latch member 50 is Upon release from the pitch regulating member 54, the swing-type pressing member 27, the point is pushed out from the front 8a by sliding the control member 24 via the linking mechanism 19, 31, but it is clear, respectively.

  Next, FIG. 12 is an explanatory view from a plan view when the swing type pressing body 27 is pushed out, and FIG. 13 is an explanatory view showing a flow from the plan view. As described above, in this embodiment, the operating protrusions (inner end portions) 9a, 11a of the shaft portions of the lever handles 9, 11 press the rear end portion of the “directly” sliding control body 24 (the number of parts). Decrease). Therefore, for example, the gripping portion of the operation member (9, 11) is pushed toward or away from the wall surface of the door 7 (arrow A in FIG. 1), and one of the operating protrusions (inner end portions) 9a, 11a is pressed. However, when the position is displaced (moved) in the horizontal state on the front 8a side of the lock box 8, the front surface of the operating protrusion (inner end) presses the rear end surface of the sliding control body 24.

  Therefore, for example, when the operating protrusion (inner end) 9a continues to move toward the front 8a (in the direction of arrow B) due to the operating force of the outer operating member 9, as shown in FIGS. 27 is pushed by the tip of the sliding control body 24 (the tip 19b of the connecting projection 19 in the embodiment) at a position where the wide rear end is slightly eccentric to the outside (outdoor) of the center line “O”. Therefore, with the vertical shaft 26 as a fulcrum, the frame-like engaging protruding tip 27b rotates horizontally in a direction approaching the vertical roller 42 of the support bracket 41, and the vertical roller 42 has a lever principle. Press contact (using kicking force against the contact part). And all the reaction force based on this press-contact force acts in the direction which opens door itself. As a result, a gap is created between the door opening / closing end 7a of the door 7 and the door frame 1, the indoor and outdoor ventilation is performed, the negative pressure on the indoor side is eliminated, and the indoor becomes negative pressure, and a large force is exerted for opening. Even the door 7 that is required can be easily opened.

  In this section, the second embodiment, the third embodiment, and the like of the present invention will be described (the same components are assigned the same / similar reference numerals, and duplicate descriptions are omitted).

14 to 18 are explanatory views showing a second embodiment of the present invention. The second embodiment (for example, FIG. 14) is mainly different from the first embodiment (for example, FIG. 2) as follows.
(A) The point where the inner and outer windows 53A formed in the lock box 8 are longer than that of the first embodiment.
(B) The operating protrusions (inner end portions) 9a and 11a of the shaft portion of the operating member that enters the lock box 8 from the inner and outer windows 53A are located behind the rear end surface of the sliding control body 24A. Rather, it is positioned with a gap in the rectangular opening or notch 21 formed in the rear end 24b of the sliding control body 24A.
(C) The urging means 23A that urges the sliding control body 24A in a predetermined direction is provided between the spring receiving portion 24d of the sliding control body 24A and the spring receiving piece 20 that is present at a substantially central portion of the lower space of the lock box 8. The point provided in between. In other words, the urging means 23A urges the sliding control body 24A and the swing type pressing body 27A from the front 8a of the lock box 8 in the protruding direction.
(D) At the initial position, the amount of protrusion from the front 8a of the engaging tip 27b of the swing type pressing body 27A is large (compare FIGS. 3 and 15).
(E) The point is a reverse pattern (a method in which the swing-type pressing body 27A moves backward while rotating), as is apparent from the comparison between the actions of FIG. 13 and FIG. That is, when the door is opened, the operating protrusions (inner end portions) 9a and 11a of the shaft portion of the operation member come into contact with the plate-like end surface of the opening 21 of the sliding control body 24A, and the sliding control body 24A is urging means 23A. When the slide control body 24A retracts toward the rear wall 8b side of the lock box 8 against the spring force, the swing control body 24A pulls the swing type pressure body 27A. The point which rotates as a fulcrum and the engagement front-end | tip part 27b collides with the contact part 28. FIG.
(F) Further, an engagement protrusion 49 is provided on the lower surface of the arm portion connecting the base end portion 46a and the engagement free end portion 46b of the mediating member 46A so as to slidably contact the rear inclined surface 15d of the slide control body 24A. There are points.
(G) Therefore, as shown in FIG. 16, when the sliding control body 24A moves in the direction of the rear wall 8b of the lock box 8 indicated by the arrow, the engaging protrusion 49 of the mediating member 46A has the sliding control body 24A. This is the point that the latch restricting member 54 rotates in the direction to release the restriction of the reverse latch 50.

  As described above, the second embodiment is a “reverse pattern (pulling method)” of the first embodiment, in which the design of the engaging portion of the mediating member 46A is partially changed, but as in the first embodiment. The pressure contact force of the engagement tip 27b of the swing type pressing body 27A is not a “component force in the straight direction” as in Patent Document 1, but is almost a reaction force acting in the direction of opening the door 7. Further, the pressure contact force of the swing type pressing body against the contact portion 28 on the door frame 1 side can be sufficiently exhibited.

  In order to understand the technical idea of the present invention, the operation members 9 and 11 are illustrated in a simple shape in FIG. 1, but the operating protrusions 9 a and 11 a themselves are the shafts of the operation members 9 and 11. It may be the inner end of the part, or may be displaced in the horizontal direction or the vertical direction in conjunction with the inner end of the shaft part of the operation members 9 and 11. The operating protrusions 9a and 11a are displaced in the vertical direction by a rectangular opening formed at the rear of the rear end 24b of the slide control body 24A or the rear end 24b of the slide control body 24A, or It is desirable that the portion located in the notch 21 has a “shape having a cam function (inclined surface)”.

  When either a push-pull type handle or an assist lever is employed, it is naturally provided in the vicinity of a known structure, for example, the handle described in Patent Document 2 (Patent No. 4034216) proposed by the applicant. The lever handle, the handle described in Japanese Patent Application Laid-Open No. 2004-100823, the push / pull handle described in Japanese Patent Application Laid-Open No. 2002-129796 proposed by other companies, and the like can be appropriately modified and / or used as they are.

  Next, FIG.19 and FIG.20 is each explanatory drawing which shows 3rd Embodiment of this invention. In the first embodiment and the second embodiment, the connecting means, that is, the connecting protrusions 19 of the sliding control bodies 24 and 24A, and the connecting shaft 31 of the swing type pressing bodies 27 and 27A that engage with the connecting protrusions 19 are used as constituent requirements. Yes. Therefore, both the type of pushing the swing type pressing body 27 and the type of pulling the swing type pressing body 27A are possible.

  However, from the technical idea of the present invention, only the “push type” of the first embodiment may be used. One example is the third embodiment. In the third embodiment, the design of the linking means of the first embodiment is partially changed to an engagement means comprising “engagement protrusion 19A and engagement recess (notch recess) 35”. Reference numeral 29 denotes a return spring for the swing type pressing body 27B.

  Therefore, the internal / external air pressure difference eliminating device of the third embodiment is different in that the swing-type pressing body 27B is not linked to the sliding control body 24B via the “engaging means 19A, 35”. The rest of the configuration / action is the same as in the first embodiment.

  Next, FIGS. 21 and 22 are explanatory diagrams showing a fourth embodiment of the present invention, and FIGS. 23 and 24 are explanatory diagrams showing a fifth embodiment of the present invention. In addition, what dared to illustrate each of these embodiments is that the intermediary member (46, 46A) is necessarily required in the engagement configuration of the slide control body (24, 24A) and the latch restricting member 54. This is to point out that this is not the case.

  Thus, in the fourth embodiment, in the push pattern of the first embodiment, the design of the engagement receiving portion 54c of the latch restricting member 54 is appropriately changed, and the engagement receiving portion 54c is directly controlled to slide. The body 24 is engaged with an uphill-shaped central inclined surface 15b.

  Further, in the fifth embodiment, in the reverse pattern of the second embodiment, the flat rear upper surface 15c of the sliding control body 24A and the engagement receiving portion 54c of the latch restricting member 54 are appropriately changed in design, and the sliding is performed. An unnumbered engagement protrusion protruding from the flat rear upper surface 15c of the motion control body 24A is directly engaged with the engagement receiving portion 54c of the latch restricting member 54.

  In this way, the engagement receiving portion 54c of the latch regulating member 54 is engaged with the slide control body (24, 24A) directly or via the mediating member (46, 46A), and the slide control body (24, 24A). During the movement, the restriction of the latch restricting member 54 with respect to the inversion latch 50 may be released.

  The present invention is used in the fields of locks and joinery.

DESCRIPTION OF SYMBOLS 1 ... Door frame, 2 ... Receiving member, X ... Latch lock, 5 ... Notch part, 6 ... Door stop, 7 ... Door, 7a ... Free end part, 8 ... Lock box, 8a ... Front, 8b ... Rear wall, 9 ... outer operation member, 9a, 11a ... operating protrusion, 10 ... seat plate, 11 ... inner operation member, 12 ... support shaft, 15 ... upper surface, 15a ... front upper surface, 15b ... central inclined surface, 15c ... rear upper surface, 15d DESCRIPTION OF SYMBOLS ... Back inclined surface, 16 ... Horizontal guide long hole, 17 ... Notch part, 18 ... Gap, 19 ... Connection protrusion, 19A ... Engagement protrusion, 20 ... Spring receiving piece, 21 ... Rectangular opening part, 23, 23A ... Biasing means, 24, 24A, 24B ... sliding control body, 24d ... spring receiving portion, 24a ... tip portion, 24b ... rear end portion, 26 ... vertical shaft, 27, 27A, 27B ... swing-type pressing body, 27a ... Wide rear end portion (inner end portion), 27b... Engagement tip portion, 28... Abutting portion, 31. Bearing member, 35 ... engagement recess, 41 ... support bracket, 42 ... vertical roller, 43 ... notch-like recess, 46, 46A ... mediation member (assist piece), 46a ... base end, 46b ... free engagement end 47, horizontal axis, 48, intermediate spring, 53, window, 54, latch restricting member, 54c, engagement receiving part, 50, reverse latch, 54a, central axis, 53, 53A, window, 55, 56, support axis.

Claims (3)

A lock is provided from a window of a lock box provided with a predetermined amount of rotation in a direction contacting and separating from the wall surface through a seat plate fixed to the wall surface of the door, and an operating projection piece provided at a free end of the door. An operating member that enters into the box, a slide control body that slides toward the front side of the lock box based on the pressing force of the operating protrusion , and against the biasing force of the biasing means, and the slide A latch restricting member that engages with the motion control body directly or through an intermediate member and releases the restriction of the latch member during the movement of the slide control body, and a linkage means having a gap at the tip of the slide control body And a swing-type pressing body that is pivotally supported via a vertical shaft and has an engaging tip that always protrudes from the front on the tip side, and at least the operation when opening the door Via the operating protrusion and the sliding control body which are displaced by a member. Thus, when the engaging tip of the swing-type pressing body is pressed against the abutting portion on the door frame side by the lever principle, the reaction force based on the pressing force acts in the direction of opening the door itself. Latch lock for joinery equipped with a cancellation device. The latch lock for joinery according to claim 1, wherein the operation member is a push-pull type handle or an assist lever. A lock is provided from a window of a lock box provided with a predetermined amount of rotation in a direction contacting and separating from the wall surface through a seat plate fixed to the wall surface of the door, and an operating projection piece provided at a free end of the door. An operating member that enters into the box, a slide control body that slides toward the front side of the lock box based on the pressing force of the operating protrusion , and against the biasing force of the biasing means, and the slide A latch restricting member that engages the motion control body directly or via an intermediate member and releases the restriction of the latch member during the movement of the slide control body, and has a slight gap at the tip of the slide control body. together engage through the engagement means consists of a swing type pressing member having an engaging tip always projects from axially supported by and the front on the distal end side through the vertical axis, during door opening, at least Via the operating protrusion and the sliding control body which are displaced by the operation member Thus, when the engaging tip of the swing-type pressing body is pressed against the abutting portion on the door frame side by the lever principle, the reaction force based on the pressing force acts in the direction of opening the door itself. Latch lock for joinery equipped with a cancellation device.