JP2008121297A - Drop bolt locking structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a drop bolt locking structure which prevents a drop bolt from loosening while maintaining a male screw portion in a rotation adjustable state, wherein the drop bolt locking structure avoids locking disability/unlocking disability due to change of a protrusion length of a rod from the time of adjustment. <P>SOLUTION: The drop bolt locking structure is formed of: a lever handle 27 rotatably arranged on a door 5; a slider arranged in the door 5, for vertically moving according to rotation of a lever handle shaft; and the rod 9 which allows the male screw portion formed on an upper end thereof to be screwed into a female screw portion of the slider, and allows an engaging pole 15 arranged on a lower end thereof to be drawn from/inserted into an engaging recess 13 bored in the ground 11. The male screw portion is pinched by a pair of fixed block and a movable block made of a resin material, and the fixed block is fixed to the slider via a fixing means, followed by pressing the male screw portion to the fixed block by the movable block pressed to the tip of a pressing screw screwed into the slider. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a lock structure for locking a lock that allows a rod to protrude from, for example, a lower portion of a door, and more particularly to an improved technique for preventing a rod attached in a screwed state from loosening.

  Doors such as gates are provided with locking rods that protrude freely on the open / close end side of the doors, and locks and gremons that lock the doors by inserting the rods into the locking recesses on the ground. A lock (see, for example, Patent Document 1) may be attached. In this type of lock mechanism of the rod, a slide rack that can be raised and lowered is built in the door, and the slide rack can be raised and lowered by following a turning operation of a lever handle that is provided rotatably on the door. The slide rack normally extends downward, and has a female screw portion formed at the lower end thereof, and the female screw portion is screwed with a male screw portion formed at the upper end of the rod.

Therefore, when the lever handle is operated and the slide rack is raised and lowered, the rod is also raised and lowered, and the locking rod which is the lower end portion of the rod is removed from the locking recess provided on the ground. Inserted and door unlocked or locked. Conventionally, this type of lock structure has a rod male threaded portion that can be used for doors with different rod protrusion lengths, or can be used when the distance between the lever handle and the lower end of the door is different. And the protruding length of the rod can be freely adjusted. Further, in order to restrict the rotation of the male screw portion relative to the slide rack, for example, a loosening nut or the like may be screwed onto the male screw portion of the rod.
JP 2002-47841 A

  However, in the conventional rod, since the male screw portion of the rod is screwed into the female screw portion provided in the slide rack or the like which is a lifting member, the rod due to the moment due to external force or vibration acts over time. Rotates, and the rod protrusion length may change from the time of adjustment. If the rod protrusion length changes short, locking becomes impossible, and if it changes long, unlocking may become impossible. In addition, there is a configuration in which a locking nut is screwed onto the male threaded part of the rod or a locking screw is pressed from a direction perpendicular to the male threaded part, but the thread of the male threaded part is easily deformed, and the rear protrusion In some cases, the length could not be adjusted. On the other hand, if the protruding length of the rod is a fixed length, it cannot be used for doors having different rod protruding lengths, resulting in a disadvantage of reducing versatility.

  The present invention has been made in view of the above circumstances, and provides a locking structure for a lock that can prevent loosening while maintaining a male threaded portion in a state where it can be adjusted and without damage, Therefore, it aims at preventing the locking impossible and unlocking impossible by the rod protrusion length changing from the time of adjustment.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The locking structure of the lock according to claim 1 of the present invention includes a lever handle 27 that is rotatably provided on the door 5;
A slider 67 provided on the door 5 and moved up and down following the rotation of the lever handle shaft 25;
A male screw portion 75 formed at the upper end is screwed into a female screw portion 77 of the slider 67, and interlocks with the vertical movement of the slider 67. A rod 9 that is pulled out or inserted into the locking recess 13 provided in the recess,
The male screw portion 75 is sandwiched between a pair of a fixed block 87 and a movable block 89 made of a resin material,
One of the fixed blocks 87 is fixed to the slider 67 through fixing means,
The male screw portion 75 is pressed against the fixed block 87 by the movable block 89 pressed by the tip 105a of the pressing screw 105 screwed to the slider 67.

  In this lock-off locking structure, the rod 9 screwed to the slider 67 is sandwiched between the fixed block 87 and the movable block 89, and the movable block 89 is pressed by the pressing screw 105 screwed to the slider 67. As a result, the male screw portion 75 is pressed against the fixed block 87 via the movable block 89. Thereby, the male screw portion 75 is first sandwiched and fixed by the movable block 89 and the fixed block 87. Second, the male screw portion 75 is pressed against the female screw portion 77 through the movable block 89, and the frictional force between the male screw portion 75 and the female screw portion 77 increases. Then, both the clamping force and the pressing force with respect to the male screw portion 75 are applied by the block made of a resin material.

  The locking structure for locking the lock according to claim 2 includes a holding groove 91 for inserting the male screw portion 75 into the opposing holding surfaces of the fixed block 87 and the movable block 89 that hold the male screw portion 75. A pair of the fixed block 87 and the movable block 89, which are inserted into the holding grooves 91 and 93 and sandwich the male screw portion 75, are separated with a predetermined gap S therebetween. And

  In this lock-off locking structure, a predetermined gap S is provided between the movable block 89 and the fixed block 87 in a state where the male screw portion 75 is sandwiched, and a tightening movement space of the movable block 89, that is, tightening is performed. The bill is secured. Further, since the male screw portion 75 is positioned and clamped in the holding grooves 91 and 93, the contact area with the fixed block 87 and the movable block 89 increases.

The locking structure for locking the lock according to claim 3 is provided with a pair of elastic locking pieces 95 protruding toward the fixed block 87 on both sides perpendicular to the clamping surface of the movable block 89,
Recessed spaces 97 for locking the pair of elastic locking pieces 95 movably in the direction perpendicular to the axis of the rod 9 are formed on both side surfaces of the fixed block 87.

  In this lock-off locking structure, the elastic locking piece 95 of the movable block 89 is locked in the recessed space 97 of the fixed block 87, and the movable block 89 is held movably with respect to the fixed block 87.

According to a fourth aspect of the present invention, the slider 67 includes a bottom plate portion 79 on which the female screw portion 77 is formed, a pair of side plate portions 81 standing from both sides of the bottom plate portion 79, and the both sides. A back plate portion 83 formed over the plate portion 81, and
The fixing screw 101 as the fixing means is inserted into the bottom plate portion 79 and screwed into the fixing block 87, and the pressing screw 105 is screwed into the back plate portion 83,
The movable block 89 is disposed between the back plate portion 83 and the male screw portion 75.

  In this lock-off locking structure, the movable block 89 is disposed between the back plate portion 83 and the male screw portion 75, so that the movable block 89 has the side plate portion 81, the back plate portion 83 and the male screw on both sides of the slider. The part 75 is movably surrounded.

According to a fifth aspect of the present invention, there is provided a locking mechanism for locking the lock according to the fifth aspect of the present invention. Established,
A tip 105 a of the pressing screw 105 that has entered the pressing seat 107 is brought into contact with a bottom surface 107 a of the pressing seat 107 through a metal seat plate 109.

  In this lock-off locking structure, when the tip 105a of the pressing screw 105 enters the pressing seat 107 of the movable block 89, the pressing screw 105 is locked to the concave pressing seat 107, and the rod of the movable block 89 is locked. Movement in the axial direction is restricted. Further, when pressing with the pressing screw 105, the bottom surface 107 a of the pressing seat 107 is pressed through the metal seat plate 109.

  According to the locking structure of the lock according to claim 1 of the present invention, the rod screwed to the slider is sandwiched between the fixed block and the movable block, and the movable block is pressed against the pressing screw screwed to the slider. Is pressed, the male screw portion is pressed against the fixed block via the movable block. Therefore, the male screw portion is first sandwiched and fixed by the movable block and the fixed block, and even if a moment is generated by an external force, the rotation is restricted. Secondly, since the male screw portion is pressed against the female screw portion via the movable block, and the frictional force between the male screw portion and the female screw portion increases, it is also possible to prevent loosening. And since both the clamping force and pressing force with respect to a male screw part are applied by the block which consists of resin materials, a male screw part or a female screw part is not damaged. As a result, while maintaining the male threaded portion in a state where the rotation can be adjusted or without damaging the screw thread, it is possible to reliably prevent loosening and the rod protrusion length from the time of adjustment. Unlockable and unlockable due to change can be prevented. Moreover, it becomes applicable to the lock with different rod protrusion lengths, and versatility can be improved.

  According to the lock structure for locking the lock according to claim 2, a predetermined gap is provided between the movable block and the fixed block in a state where the male screw portion is sandwiched, and a tightening movement space of the movable block is always secured. be able to. Further, since the holding groove is provided, it is possible to increase the contact area with the male screw portion when the male screw portion is sandwiched.

  According to the lock structure for locking the lock according to claim 3, the elastic locking piece of the movable block can be locked in the recessed space of the fixed block, and the movable block can be held movably with respect to the fixed block. In addition, the male screw portion can be easily inserted between the opposing clamping surfaces of the movable block and the fixed block in the temporarily stopped state by post-operation.

  According to the locking structure for locking the lock according to claim 4, the movable block is disposed between the back plate portion and the male screw portion, so that the movable block is arranged on the side plate portion on both sides of the slider, the back plate portion, and the male screw. It can be surrounded by the portion and held movably, and the retrofit workability of the rod can be improved.

  According to the locking structure for locking the lock according to claim 5, the movement of the movable block in the rod axis direction is restricted by the tip of the pressing screw entering the pressing seat of the movable block, and the movable block from the slider is moved. Dropout is surely prevented. Further, when pressing with the pressing screw, the bottom surface of the pressing seat is pressed through the metal seat plate, so that a strong pressing force can be applied without damaging the movable block made of the resin material.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a lock structure for locking a lock according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a front view of a gate door to which a lock structure for locking a lock according to the present invention is applied.
The loosening prevention structure according to the present embodiment is suitably used for the lock 7 of the gate 5 attached to the gate column 1 via the hinge 3 so as to be opened and closed. The lock 7 includes a rod 9 that slides downward and protrudes. The rod 9 is locked by restricting the opening of the gate 5 by inserting a locking rod 15 at the tip into a locking recess 13 provided in the ground 11.

FIG. 2 is a side view of the inside of the lock box of the lock shown in FIG.
The lock 7 has a lock box 17 provided in the gate 5. The lock box 17 is provided with a fixing flange 19 at the top and bottom, and the flange 19 is screwed to the door plate 23 of the gate 5 with a screw 21. A lever handle shaft 25 is rotatably provided at substantially the center of the lock box 17, and a lever handle 27 that is rotatable on the door surface 5 a is fixed to an end of the lever handle shaft 25.

  A link plate 29 is fixed to a portion of the lever handle shaft 25 located in the lock box 17, and the link plate 29 engages an engagement pin 35 with a long hole 33 of the slide plate 31. The slide plate 31 is provided with a protrusion 37, and the protrusion 37 is moved along a guide groove 39 that is formed in the lock box 17 and that is vertically long. In other words, the slide plate 31 is moved up and down via the link plate 29 and the engagement pin 35 as the lever handle 27 is operated and the lever handle shaft 25 rotates within a rotation angle range of about 90 °.

  The slide plate 31 is urged and arranged at one of the upper and lower movement positions by a switching spring 45 having one end supported by the pin 41 of the lock box 17 and the other end supported by the pin 43 of the slide plate 31.

  A lock knob shaft 47 is rotatably provided in the lock box 17, and a lock knob 49 (see FIG. 1) that is rotatable on the door surface 5 a is fixed to one end of the lock knob shaft 47. A rocking piece 51 is fixed to the lock knob shaft 47, and the rocking piece 51 abuts against a pair of convex portions 53 erected in the lock box 17, so that the rotation angle of the lock knob shaft 47 is in a range of approximately 90 °. Is regulated. The swing piece 51 is pressed against one end of an urging spring 55 supported by the lock box 17 via the support shaft 54, and is thereby urged and arranged in one of the rotation ranges. The swing piece 51 is engaged with the engaging portion 31a of the slide plate 31 at one of the clockwise rotation end positions in FIG. 2 and restricts the downward movement of the slide plate 31. Thereby, the raising of the rod 9 is regulated by a mechanism which will be described later, and the gate 5 is locked. The gate 5 is locked by the lock knob 49 being rotated counterclockwise in FIG. 2 so that the swing piece 51 is released from the engaging portion 31a and unlocked.

  The slide plate 31 is formed with a rack 57 having teeth arranged in the vertical direction. A small gear 61 is rotatably supported on the lock box 17 by a support shaft 59, and the small gear 61 meshes with a rack 57. A large gear 63 that rotates integrally with the small gear 61 is rotatably provided on the support shaft 59, and the large gear 63 meshes with a rack 69 of a slider 67 in the rod connecting portion 65. In the slider 67, a long elongated hole 73 is formed in the vertical flange portion 71 where the rack 69 is formed, and the elongated hole 73 is guided to a guide portion (not shown) provided inside the gate door 5.

  In the lock 7, when the lever handle 27 is rotated, the slide plate 31 is moved up and down. As a result, the small gear 61 and the large gear 63 rotate and the slider 67 meshing with the large gear 63 is driven. The rod 9 is moved up and down, and the rod 9 is pulled out or inserted into the locking recess 13 via the rod connecting portion 65.

3 is a horizontal cross-sectional view of the main part of the rod connecting part shown in FIG. 2, FIG. 4 is an exploded perspective view of the rod connecting part shown in FIG. 3, and FIG. 5 is a vertical cross-sectional view of the fixed block and the movable block.
The rod connecting part 65 connects the rod 9 to the slider 67. In the rod 9, a male screw portion 75 formed at the upper end is screwed into a female screw portion 77 shown in FIG. 4 of the slider 67 and moves up and down integrally with the slider 67.

  The slider 67 includes a bottom plate portion 79 in which a female screw portion 77 is formed, a pair of parallel side plate portions 81 and 81 erected from both sides of the bottom plate portion 79, and a back plate formed across the both side plate portions 81 and 81. Part 83. A base portion 71 a of the vertical flange portion 71 is connected to the side plate portions 81 and 81.

  The male screw portion 75 that is screwed into the female screw portion 77 and protrudes upward from the bottom plate portion 79 is sandwiched between a pair of a fixed block 87 and a movable block 89 made of a resin material, for example, having a two-part structure. . For the fixed block 87 and the movable block 89, a material that easily bites into a metal convex portion or the like, Duracon, nylon resin, or the like is preferably used rather than slipperiness. As will be described in an assembly procedure described later, the male screw portion 75 of the rod 9 is screwed into the female screw portion 77 after the fixed block 87 and the movable block 89 are mounted on the slider 67.

  Holding grooves 91 and 93 into which the male screw portion 75 is inserted are formed on the opposing holding surfaces of the fixed block 87 and the movable block 89 that sandwich the male screw portion 75. The pair of fixed blocks 87 and the movable blocks 89 inserted into the holding grooves 91 and 93 and sandwiching the male screw portion 75 are separated from each other with a predetermined gap S shown in FIG. That is, in the state where the male screw portion 75 is sandwiched, the contact area is increased with respect to the male screw portion 75, and a predetermined gap S is provided between the movable block 89 and the fixed block 87. A tightening movement space, that is, a tightening allowance is always secured.

  A pair of elastic locking pieces 95, 95 projecting toward the fixed block 87 are provided on both sides perpendicular to the holding surface of the movable block 89. On both side surfaces of the fixed block 87, recessed spaces 97, 97 are formed for movably locking the pair of elastic locking pieces 95 in the direction orthogonal to the axis of the rod 9. The elastic locking piece 95 is locked to a locking wall 97 a erected on the edge of the recessed spaces 97, 97. As described above, the elastic locking piece 95 of the movable block 89 is locked to the recessed spaces 97 of the fixed block 87, and the movable block 89 is held movably with respect to the fixed block 87, so The male screw portion 75 can be easily inserted between the opposed holding surfaces of the movable block 89 and the fixed block 87 which are in a state by post-operation.

  Tapered surfaces 99a and 99b shown in FIG. 5 are formed at the lower ends of the holding grooves 91 and 93 of the fixed block 87 and the movable block 89, and the tapered surfaces 99a and 99b facilitate the insertion of the male screw portion 75 from below. .

  The fixing block 87 is fixed to the bottom plate portion 79 of the slider 67 by screwing a fixing screw 101 as a fixing means inserted through the bottom plate portion 79 into the screw hole 103 (see FIG. 5). On the other hand, the movable block 89 is disposed between the back plate portion 83 and the male screw portion 75. A pressing screw 105 is screwed into the screw hole 104 formed in the back plate portion 83 of the slider 67, and the pressing screw 105 presses the movable block 89.

  Here, the fixing block 87 fixed by the fixing screw 101 is eccentric with the arc center of the holding groove 91 slightly deviated from the central axis of the female screw portion 77 in the pressing direction of the pressing screw 105. As a result, the male screw portion 75 is pressed against the fixed block 87 by the movable block 89 pressed by the tip 105 a of the pressing screw 105 screwed to the slider 67.

  As described above, the movable block 89 is disposed between the back plate portion 83 and the male screw portion 75, so that the movable block 89 has the side plate portions 81 and 81 on both sides of the slider 67, the back plate portion 83, and the male screw portion 75. The fixed block 87 and the movable block 89 can be held without dropping even when the rod 9 is inserted, so that the workability of retrofitting the rod 9 can be improved.

  A pressing seat 107 into which the tip 105a of the pressing screw 105 enters is recessed in the pressed surface 89a of the movable block 89 facing the tip 105a of the pressing screw 105. The tip 105 a of the pressing screw 105 that has entered the pressing seat 107 is brought into contact with the bottom surface 107 a of the pressing seat 107 through the metal seat plate 109. Thus, when the tip 105a of the pressing screw 105 enters the pressing seat 107 of the movable block 89, the pressing screw 105 is engaged with the concave pressing seat 107, and the movable block 89 moves in the rod axis direction. It is restricted, and the upward drop of the movable block 89 from the slider 67 is surely prevented. Further, when pressing with the pressing screw 105, the bottom surface 107a of the pressing seat 107 is pressed through the metal seat plate 109, so that a strong pressing force can be applied without damaging the movable block 89 made of a resin material.

Next, an assembling procedure of the rod connecting portion in the above-described lock will be described.
6 is an assembly procedure explanatory diagram showing a state immediately before the fixed block and the movable block are mounted on the slider, FIG. 7 is an assembly procedure explanatory diagram showing a state immediately before the rod screwing, and FIG. 8 is a rod length adjustment state. FIG. 9 is an assembly procedure explanatory diagram illustrating a state in which the rods have been prevented from being loosened.
In order to assemble the rod connecting portion 65, first, as shown in FIG. 6, the elastic locking piece 95 of the movable block 89 is locked to the locking wall 97a of the fixed block 87, The fixed block 87 is inserted between the side plate portions 81 and 81 of the slider 67. At this time, a metal seat plate 109 is inserted into the pressing seat 107 of the movable block 89.

  Next, the fixing screw 101 is inserted into the screw insertion hole 111 formed in the bottom plate portion 79 and screwed into the screw hole 103 of the fixing block 87, so that the fixing block 87 is temporarily fixed to the bottom plate portion 79. Next, as shown in FIG. 7, the pressing screw 105 is screwed into the screw hole 104 of the back plate portion 83, and the tip 105 a is brought into contact with the metal seat plate 109 inserted into the pressing seat 107. The pressing screw 105 is in a state of being in contact with the metal seat plate 109, and further tightening is performed after the male screw portion 75 is inserted.

  As shown in FIG. 8, an insertion opening 113 for inserting the rod 9 is formed in the lower end surface 5 b of the gate 5. The rod 9 has a male screw portion 75 inserted in advance into the insertion opening 113 before the gate 5 is attached to the gate pillar 1. The rod 9 is inserted between the opposing holding surfaces of the movable block 89 and the fixed block 87 by screwing the male screw portion 75 into the female screw portion 77 of the slider 67 from below. At this time, since the tapered surfaces 99 a and 99 b are formed on the lower surfaces of the movable block 89 and the fixed block 87, the male screw portion 75 is easily guided into the holding grooves 91 and 93, and is connected to the female screw portion 77. There is no hindrance to screwing.

  The rod 9 may be preliminarily screwed with the male screw portion 75 and the female screw portion 77 of the slider 67 in advance. In this case, transportability can be improved by making the locking rod 15 at the lower end detachable.

  Next, when the gate 5 is attached to the gate column 1 and the lock 7 is locked, the male screw 75 is rotated so that the locking rod 15 enters the locking recess 13 at a predetermined depth, thereby locking Adjust the protrusion length of the flange 15.

  When the protruding length of the locking rod 15 is determined, the fixing screw 101 is finally tightened, and then the pressing screw 105 is finally tightened. Thereby, the holding grooves 91 and 93 of the movable block 89 and the fixed screw 101 bite into the male screw portion 75.

  In this way, the male thread portion 75 of the rod 9 screwed to the slider 67 is sandwiched between the fixed block 87 and the movable block 89, and the movable block 89 is pressed by the pressing screw 105 screwed to the slider 67. As a result, the male screw portion 75 is pressed against the fixed block 87 via the movable block 89. Thereby, the male screw portion 75 is first sandwiched and fixed by the movable block 89 and the fixed block 87.

  Secondly, the male screw portion 75 is pressed against the female screw portion 77 via the movable block 89, and a force in the shearing direction acts on the male screw portion 75, and the holding grooves 91 and 93 are formed on the male screw portion 75. By biting into the screw thread, the frictional force between the male screw portion 75 and the female screw portion 77 increases. As described above, both the clamping force and the pressing force with respect to the male screw portion 75 are applied by the block made of the resin material.

  Therefore, according to the locking structure of the lock 7 described above, the rod 9 screwed to the slider 67 is sandwiched between the fixed block 87 and the movable block 89, and is pressed to the pressing screw 105 screwed to the slider 67. When the movable block 89 is pressed, the male screw portion 75 is pressed against the fixed block 87 via the movable block 89. Thereby, the male screw portion 75 is first sandwiched and fixed by the movable block 89 and the fixed block 87, and even if a moment is generated by an external force, the rotation is restricted. Second, the male screw portion 75 is pressed against the female screw portion 77 via the movable block 89, and the frictional force between the male screw portion 75 and the female screw portion 77 increases. This also prevents loosening. be able to.

  Since both the clamping force and the pressing force with respect to the male screw portion 75 are applied by the block made of the resin material, the male screw portion 75 or the female screw portion 77 is not damaged. As a result, it is possible to prevent looseness while maintaining the male threaded portion 75 in a state in which the rotation of the male threaded portion 75 can be adjusted, or to prevent the looseness of the screw thread, and to prevent the looseness and adjust the rod protrusion length. It is possible to prevent the inability to lock and unlock by changing from. In addition, one type of lock 7 can be applied to different rod protrusion lengths, and versatility can be improved.

  In addition, it is preferable to attach the cap-shaped component 115 shown in FIG. Thereby, it is possible to easily remove dust and dust that have entered the locking recess 13.

  In the above embodiment, the rod 9 protrudes from the lower end of the gate 5. However, the rod 9 may protrude from the upper end, and may further be a gremon lock rod that protrudes simultaneously from the upper and lower ends. May be.

  In the above embodiment, the example in which the movable block 89 and the fixed block 87 are separate has been described. However, since the movable block 89 and the fixed block 87 are resin products, they are integrated via a hinge or the like. If it is connected and formed so that it can be freely opened and closed, the number of parts can be reduced, and parts management and assembly can be improved.

It is a front view of the gate door to which the locking structure of the lock according to the present invention is applied. It is the side view which saw through the inside of the lock box of the lock shown in FIG. It is a principal part horizontal sectional view of the rod connection part shown in FIG. FIG. 4 is an exploded perspective view of a rod connecting portion shown in FIG. 3. It is a longitudinal cross-sectional view of a fixed block and a movable block. It is an assembly procedure explanatory drawing showing the state just before mounting a fixed block and a movable block to a slider. It is assembly procedure explanatory drawing showing the state just before rod screwing. It is assembly procedure description showing a rod length adjustment state. It is an assembly procedure explanatory drawing showing the state where the rod locking was completed.

Explanation of symbols

5 ... Door (Gate)
DESCRIPTION OF SYMBOLS 9 ... Rod 11 ... Ground 13 ... Locking recessed part 15 ... Locking rod 25 ... Lever handle shaft 27 ... Lever handle 67 ... Slider 75 ... Male screw part 77 ... Female screw part 79 ... Bottom plate part 81 ... Side plate part 83 ... Back plate Numeral 87 ... Fixed block 89 ... Movable block 89a ... Pressed surface 91, 93 ... Holding groove 95 ... Elastic locking piece 97 ... Recessed space 101 ... Fixing screw (fixing means)
DESCRIPTION OF SYMBOLS 105 ... Press screw 105a ... Tip of press screw 107 ... Press seat 107a ... Bottom face of press seat 109 ... Metal seat plate S ... Predetermined gap

Claims (5)

A lever handle that is pivotally provided on the door;
A slider provided on the door and moved up and down following the rotation of the lever handle shaft;
A male threaded portion formed at the upper end is screwed into the female threaded portion of the slider, interlocking with the vertical movement of the slider, and a locking rod provided at the lower end is recessed on the ground or floor surface. A rod that is pulled out or inserted into the stop recess,
The male screw part is sandwiched between a pair of fixed blocks and a movable block made of a resin material,
One of the fixed blocks is fixed to the slider via a fixing means;
A locking structure for locking the lock according to claim 1, wherein the male screw portion is pressed against the fixed block by the movable block pressed against the tip of a pressing screw screwed onto the slider.   A holding groove for inserting the male screw part is formed on each of the opposing holding surfaces of the fixed block and the movable block that sandwich the male screw part, and a pair of the male screw part that is inserted into the holding groove to hold the male screw part 2. The locking structure for locking a lock according to claim 1, wherein the fixed block and the movable block are spaced apart from each other with a predetermined gap. A pair of elastic locking pieces projecting toward the fixed block are provided on both sides of the movable block perpendicular to the clamping surface,
3. A drop according to claim 1 or 2, wherein a recess space is formed on both side surfaces of the fixed block so as to movably lock the pair of elastic locking pieces in a direction orthogonal to the axis of the rod. Locking prevention structure of the lock. The slider comprises a bottom plate portion on which the female screw portion is formed, a pair of side plate portions erected from both sides of the bottom plate portion, and a back plate portion formed across the both side plate portions,
A fixing screw as the fixing means is inserted into the bottom plate portion and screwed into the fixing block, and the pressing screw is screwed into the back plate portion,
4. The lock structure for locking a lock according to claim 1, 2 or 3, wherein the movable block is disposed between the back plate portion and the male screw portion. A pressing seat into which the tip of the pressing screw enters is recessed in the pressed surface of the movable block facing the tip of the pressing screw,
The tip of the pressing screw that has entered the pressing seat is brought into contact with the bottom surface of the pressing seat via a metal seat plate. The lock-off structure of the lock.

Images