JP2008297711A - Anti-coming-off implement for sliding door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an anti-coming-off implement for a sliding door, which has a simple structure. <P>SOLUTION: This anti-coming-off implement 6 for the sliding door, which is mounted on the upper section of the sliding door traveling on a sill and guided by a guide rail 7 of a head 2, comprises a protruding member 11 which is provided in such a manner as to be protrusible upward from the upper section of the sliding door, and an adjusting member 12 which adjusts the height of the protrusion of the protruding member 11 with a pinion portion 17 meshed with a rack portion 14 formed on the side surface of the protruding member 11. An operating section 19, which is provided on the one-end side of the adjusting member 12, is operated to rotate the pinion portion 17, so that the height of the protrusion of the protruding member 11 can be adjusted. The sliding door or a fixing member is provided with a fixing portion 30 for rotatably fixing so as not to come off the other-end side of the adjusting member 12 in an anti-coming-off state. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a sliding door stopper.

  As a conventional sliding door detachment stopper, a protrusion having a protruding member attached to the upper portion of the sliding door and capable of protruding upward from the upper portion of the sliding door, and a pinion portion that meshes with a rack portion formed on a side surface of the protruding member. The adjustment member that adjusts the protruding height of the member, and a technique in which the protruding portion of the protruding member is adjusted by operating the operation portion provided on one end side of the adjusting member and rotating the pinion portion is described below. It is disclosed in Patent Document 1.

JP-A 63-201182

  The slip stopper described in Patent Document 1 can easily project the protruding member upward, but the adjustment member constituting the slip stopper fixes the projecting member at a predetermined position, so that a spring is provided in the case. It has a complicated structure that is energized by. Therefore, there is a problem that the manufacturing effort and cost are high.

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a stopper with a simple structure.

  In order to achieve the above object, the sliding door stopper according to the present invention is mounted on the upper part of the sliding door that runs on the lower frame and is guided by the guide rail of the upper frame, and can protrude upward from the upper part of the sliding door. And an adjusting member for adjusting the protruding height of the protruding member having a pinion portion that meshes with a rack portion formed on a side surface of the protruding member, and an operation provided on one end side of the adjusting member. In the sliding door detachment prevention tool that adjusts the protruding height of the protruding member by rotating the pinion part by operating the part, the fixing part that fixes the other end side of the adjusting member so as to rotate freely is fixed to the sliding door or fixed It is the structure provided in the member.

  Further, in the above configuration, the fixing portion has an opening on the contact surface of the projecting member, has a small diameter hole smaller than the diameter of the tip of the pinion, and rotates the other end of the adjustment member at the bottom of the small diameter hole. A locking portion that freely locks is provided, and an engaging portion that engages with the fixing portion is provided on the other end side of the adjustment member, and an insertion portion that can be inserted into the small-diameter hole is connected to the engaging portion, and is connected to the insertion portion. The engagement portion is provided with a to-be-engaged portion, and the engagement portion is provided with a division groove having a predetermined depth from the end on the other end side.

  And in each above-mentioned structure, the space part which can be expanded / contracted elastically is formed in the engagement part at the time of insertion of the engagement part to a small diameter hole.

  Furthermore, it is a sliding door provided with the above-described sliding door disengagement tool.

  According to the sliding door slip-off preventing device according to the present invention, since the fixing portion that rotatably holds and fixes the other end side of the adjustment member is provided on the sliding door or the fixing member, the adjustment member is fixed to the fixing portion. The pinion portion is rotated by rotating the operation portion provided on the adjustment member, and the protrusion height of the protrusion member including the rack portion meshing with the pinion portion can be easily adjusted and fixed at a predetermined position. it can.

The fixing portion has a small-diameter hole, and a locking portion is provided at the bottom of the small-diameter hole for rotatably locking the other end of the adjustment member, and the other end of the adjustment member is engaged with the fixing portion. When the engaging portion is provided, the engaging portion includes an insertion portion that can be inserted into the small-diameter hole, and a locked portion that is provided to be connected to the insertion portion, and the engaging portion is provided with a dividing groove. The locking member of the adjusting member can be easily prevented from coming off and fixed simply by locking the locked portion of the adjusting member to the locking portion of the fixing portion.

  When the engaging portion is formed with a space that can be elastically expanded and contracted when the engaging portion is inserted into the small-diameter hole, the engaging portion can be easily inserted into the small-diameter hole.

  Furthermore, the sliding door provided with the sliding door disengagement tool facilitates the work of making it difficult to remove the sliding door from the frame when the sliding door is built into the frame.

The best embodiment of the present invention will be described with reference to the drawings. Here, FIG. 1 is an overall side view of a state in which a sliding door 1 according to an embodiment of the present invention is built in a frame body 5, FIG. 2 is an exploded perspective view of a front upper end of the sliding door 1, and FIG. 2 is a longitudinal sectional view of an upper end portion of the sliding door 1. FIG. In each figure, the sliding door 1 according to this embodiment is built in a frame body 5 having an upper frame 2, a lower frame 3 and a pair of front and rear vertical frames 4, 4, and runs on the lower frame 3. It is guided by the guide rail 7 of the upper frame 2. The sliding door 1 has a stopper 6 attached to the upper ends of a pair of front and rear vertical rods 8 and 8 of a sliding door body 35 formed by assembling an upper rod 9 and a lower rod 10 and a pair of front and rear vertical rods 8 and 8. Has a structure. In the present embodiment, a screen door is used as one embodiment of the sliding door 1, but the present invention is not limited to this, and the sliding door may be a glass door, a shoji screen, a fence or a board door.

As shown in FIG. 2, the stopper 6 includes a protruding member 11 and an adjusting member 12. In addition, although it describes here about the stopper 6 attached to the front upper end part of the sliding door main body 35, it is the same also about the stopper 6 of a rear upper end part.

The protruding member 11 has a substantially rectangular parallelepiped shape, a guide groove 13 guided by the guide rail 7 of the upper frame 2 is provided at the upper portion, and a rack portion 14 is provided on a side surface that is one inner edge from the center portion to the lower portion. The long hole 15 formed in the up-down direction is provided. The protruding member 11 is attached to the vertical hook 8 by being inserted into mounting portions 23 and 23 provided at the upper end of the vertical hook 8 so as to be slidable in the vertical direction.

An abutting member 33 that abuts on the hanging rail 7 of the upper frame 2 is provided below the guide groove 13. FIG. 4A shows a front view of the protruding member 11, and FIG. 4B shows a front sectional view of the protruding member 11. The contact member 33 is formed of a plate-like member made of synthetic resin or metal, and the front end portion is fixed to the bottom portion of the guide groove 13 by bonding or screwing, and the rear end from the center portion of the plate-like member. It has a structure curved in an arc shape over the part. The vicinity of the rear end portion of the contact member 33 is in contact with the lower portion of the hanging rail 7. As the sliding door 1 slides back and forth in the frame body 5, the contact member 33 uses the front end portion as a support portion. The rear end is elastically deformed and vibrates up and down. Thereby, it can prevent very effectively that the sliding door 1 floats within the frame 5. FIG.

At the upper end of the protruding member 11, a locking protrusion that can be locked to the upper edge of the vertical rod 8 so that the protruding member 11 inserted into the mounting portion 23 does not enter the vertical rod 8 due to its own weight. 16 and 16 are provided.

The adjustment member 12 has a pinion portion 17 that meshes with the rack portion 14 formed on the protrusion member 11, and the protrusion height of the protrusion member 11 is adjusted by the rotation of the pinion portion 17. FIG. 5A shows a side view of the adjustment member 12, and FIG. 5B shows a rear view of the adjustment member 12. As shown in FIG. 5A, the adjustment member 12 is provided with a pinion portion 17 on the front side which is one end side from the substantially central portion in the longitudinal direction, and is connected to the pinion portion 17 and has an operation portion 19 on one end side and the other end. Engaging portions 24 are provided on the sides. The pinion portion 17 is fitted into the elongated hole 15 of the protruding member 11 and meshes with the rack portion 14.

The tooth width L of the pinion portion 17 is configured to be almost the same as the length A (see FIG. 2) of the protruding member 11 in the front-rear direction, or the tooth width L is slightly shorter. When the engaging portion 24 is fixed to a fixing portion 30 provided on the sliding door main body 35 described later, the protruding member 11 is orthogonal to the back surface of the operation portion 19 and the traveling direction of the sliding door main body 35, and the horizontal direction of the vertical frame 4. The projecting member 11 can be fixed at a predetermined position by being sandwiched between the front surface M that faces the front surface of the front projecting member 11 of the vertical rod 8 that faces the surface extending to the front surface and the rear surface of the projecting member 11 contacts. Then, only when the operation part 19 is rotated by a tool such as a screwdriver, the pinion part 17 rotates, and after the tool such as a screwdriver is removed from the cross groove 18, the protruding member 11 no longer slides up and down. Without being fixed.

The operation unit 19 is formed with a cross groove 18 intersecting on the rotation axis C of the pinion unit 17 so that a rotation operation by a driver or the like is possible.

The engaging portion 24 is inserted into the fixing portion 30 provided in the sliding door main body 35 after being inserted into the long hole 15 of the protruding member 11, and is engaged with the adjusting member 12 to prevent the adjusting member 12 from being detached from the sliding door main body 35. The projecting member 11 is fixed at a predetermined position. The engaging portion 24 is provided at the other end side end portion connected to the insertion portion 20 and the insertion portion 20 that can be inserted into a small-diameter hole 25 of the fixing portion 30 described later provided connected to the pinion portion 17. The large-diameter portion 21 having a larger diameter than the outer diameter ds of the insertion portion 20 is provided. The step corresponding to the difference in diameter between the insertion portion 20 and the large diameter portion 21 is a locked portion 27 that is locked to a locking portion 31 of the fixing portion 30 described later. . Further, the outer diameter ds of the insertion portion 20 is configured to be smaller than the tooth tip circle diameter D of the pinion portion 17.

In addition, the engaging portion 24 is formed with a column-shaped space 28 that can expand and contract around the rotation axis C of the adjusting member 11 over a predetermined length from the other end. Similarly, a split groove 22 that divides the other end side end portion of the adjustment member 12 into four in the direction of the rotation axis C is formed from the other end side end portion to a predetermined length, and the engagement portion 24 has the rotation axis C. It has a structure that branches in the direction. The length of the space 28 and the dividing groove 22 in the direction of the rotational axis C is longer than at least the length from the other end side end to the step constituting the locked portion 27.

Accordingly, when the engaging portion 24 is fixed to the fixing portion 30, if the engaging portion 24 is pushed into a small-diameter hole 25, which will be described later, having a diameter smaller than that of the large-diameter portion 21, the dividing groove 22 becomes narrow and the space portion 28 contracts. The diameter portion 21 can be elastically deformed. The tip of the large diameter portion 21 is slightly reduced in diameter in a tapered shape.

A fixing portion 30 is formed on the vertical shaft 8 of the sliding door main body 35 so as to engage with the engaging portion 24 and to pivotably fix the other end of the adjustment member 12 so as to prevent it from coming off. The fixing portion 30 includes a small diameter hole 25 and a large diameter hole 26.

The small-diameter hole 25 is open to the front surface M that faces the vertical frame 4 of the vertical rod 8 and contacts the back surface of the protruding member 11. The inner diameter of the small-diameter hole 25 is smaller than the tip diameter D of the pinion portion 17 and is sized to fit the insertion portion 20. Further, the inner diameter of the small-diameter hole 25 is a dimension that allows the engagement portion 24 to be elastically deformed and inserted into the small-diameter hole 25 when the engagement portion 24 is inserted from the opening portion of the front surface M. That is, when the engaging portion 24 is inserted from the opening portion of the front surface M, the dividing groove 22 is crushed, the space portion 28 is contracted, and the large diameter portion 21 is contracted in the axial direction. It is equal to the outer diameter in the vicinity of the locking portion 27, or the larger diameter portion 21 is slightly larger.

The length of the small diameter hole 25 in the front-rear direction is substantially equal to the length of the insertion part 20 in the front-rear direction, or the small diameter hole 25 is slightly shorter.

A large-diameter hole 26 having a larger diameter than the small-diameter hole 25 is provided behind the small-diameter hole 25 so as to communicate with the bottom of the small-diameter hole 25. The step formed at the boundary portion between the small diameter hole 25 and the large diameter hole 26 constitutes a locking portion 31 that rotatably locks the locked portion 27 formed on the other end side of the preparation member 12. ing. The inner diameter of the large-diameter hole 26 is such that the large-diameter portion 21 can be fitted. The length of the large-diameter hole 26 in the front-rear direction is a length that can accommodate the large-diameter portion 21.

  Subsequently, the operation of the sliding door 1 provided with the stopper 6 will be described below. When attaching the stopper 6 to the sliding door main body 35, first, the protruding member 11 is inserted into the attachment portion 23 from above the vertical rod 8. Next, the engaging portion 24 of the adjustment member 12 is inserted into the long hole 15, the pinion portion 17 is engaged with the rack portion 14, and the engaging portion 24 is pushed into the small diameter hole 25. Then, the large diameter portion 21 is guided by the tip taper and enters the small diameter hole 25.

6A to 6C are longitudinal sectional views when the adjustment member 12 is pushed into the fixed portion 30. FIG. FIG. 4A shows the state before the push-in. When the large-diameter portion 21 is pushed into the small-diameter hole 25, the dividing groove 22 is pressed against the inner wall of the small-diameter hole 25 and is crushed. As a result, the space portion 28 is contracted, and the large-diameter portion 21 is moved to the axial center side. It elastically deforms in the direction of reducing the diameter of the diameter portion 21. (See FIG. 6 (b))

When the large-diameter portion 21 passes through the small-diameter hole 25 and reaches the large-diameter hole 26, the force exerted on the outer periphery of the large-diameter portion 21 by the inner wall of the small-diameter hole 25 is released. As the dividing groove 22 returns to its original state, the space 28 expands, and the locked portion 27 is locked to the locking portion 31 in this state (see FIG. 6C). Thereby, the adjustment member 12 is fixed to the vertical rod 8 of the sliding door main body 35 with the protruding member 11 interposed therebetween.

The outer diameter ds of the insertion portion 20 is set to be equal to or slightly larger than the inner diameter of the small diameter hole 25 and the outer diameter of the large diameter portion 21 is equal to or slightly larger than the inner diameter of the large diameter hole 26. Is set to be equal to or slightly shorter than the length of the small diameter hole 25 in the front-rear direction, so that the insertion portion 20 is fitted and fixed to the small diameter hole 25 and the large diameter portion 21 is fixed to the large diameter hole 26, respectively. The adjustment member 12 is difficult to rotate without a tool such as a screwdriver. Further, since the tooth width L is set to be equal to or slightly smaller than the length A of the protruding member 11 in the front-rear direction, the protruding member 11 has a back surface of the operating portion 19 and a back surface of the protruding member 11 of the vertical rod 8. It is sandwiched and fixed by the front surface M that abuts.

In this way, after the slip stopper 6 is attached, when the sliding door body 35 is built in the frame body 5, the operation portion 19 is rotated by a screwdriver or the like, and the protruding member 11 is protruded above the vertical shaft 8, The upper end of the protruding member 11 is set to a position where it abuts on the upper frame 2. Thereby, the installation work to the frame 5 of the sliding door 1 provided with the stopper 6 is completed. When removing the sliding door 1 from the frame body 5, the operation reverse to the above is performed, and the operation unit 19 is rotated reversely with the screwdriver or the like so that the protruding member 11 is guided to the mounting unit 23 and moved downward. The projecting member 11 is accommodated in the upper end portion of the vertical shaft 8, and then the sliding door 1 is removed from the frame body 5.

As described above, the anti-separation tool 6 for the sliding door 1 according to the present embodiment is provided with the fixing portion 30 for fixing the other end side of the adjustment member 12 so that the other end can be freely rotated. By fixing to the part 30, the stopper 6 can be fixed very easily. Further, by rotating the pinion portion 17 provided on the adjustment member 11, the protruding height of the protruding member 11 including the rack portion 14 that meshes with the pinion portion 17 can be easily adjusted and fixed.

In addition, a locking portion 31 that locks the other end side of the preparation member 11 in a rotatable manner is provided at the bottom of the small-diameter hole 25 provided in the fixing portion 30, and a locked portion that is locked by the locking portion 31. 27 is provided in the engaging portion 24 provided on the other end side of the adjustment member 11, and the dividing groove 22 having a predetermined length is provided in the engaging portion 24 from the end portion on the other end side. The adjustment member can be easily prevented from coming off and fixed simply by locking the stop portion 27 to the locking portion 31 of the fixing portion 30. Further, since the engaging portion 24 has a very simple structure of a branched structure having the dividing groove 22, the manufacturing is facilitated and the cost can be reduced.

Since the engaging portion 24 is formed with a space 28 that can be expanded and contracted when the engaging portion 24 is pushed into the fixing portion 30, the engaging portion 24 is pushed by a weak force when the engaging portion 24 is pushed into the fixing portion 30. 24 can be elastically deformed, and the workability at the time of attaching the adjusting member 11 to the fixed portion 30 is improved.

FIG. 7 shows another embodiment of the adjusting member. From the same figure, the engaging portion 24a of the adjusting member 12a is radially bent from the rotation axis Ca to the insertion portion 20a having a rectangular cross section connected to the pinion portion 17a and the other end side end connected to the insertion portion 20a. And a locked portion 27a. The length of each side of the rectangle in the longitudinal section of the insertion portion 20a is shorter than the length of the tip circle diameter Da of the pinion portion 17a, and the step formed at the boundary portion between the pinion portion 17a and the insertion portion 20a. It contacts the front surface M of the vertical rod 8 with which the back surface of the protruding member 11 contacts.

The length between both ends of the radially bent portion of the locked portion 27 a is a length that can be accommodated in the large-diameter hole 26 of the fixed portion 30.

In the engaging portion 24a, a split groove 22a having a predetermined length is formed on the rotation axis Ca from the end on the other end side, and the split groove 22a also serves as the space portion 28a. The length of the dividing groove 22a is longer than at least the length from the other end of the adjusting member 12a to the locked portion 27a. When the engaging portion 24a is pushed into the small diameter hole 25, the dividing groove 22a is crushed, that is, the space portion 28a is contracted, and the locked portion 27a is elastically deformed so as to be reduced in diameter toward the axis Ca. After the locked portion 27a passes through the small diameter hole 25, the locked portion 27a returns elastically.

FIG. 8 is a longitudinal sectional view showing another embodiment of the fixing portion. In the fixing portion 30b, a small-diameter hole 25b is formed as a through-hole in a flat plate 32 having a predetermined thickness, and a large-diameter hole 26 provided to be connected to the small-diameter hole 25 is formed behind the small-diameter hole 25 in the above embodiment. Instead, the rear end portion of the through hole is used as the locking portion 31b, and the locked portion 27b is locked.

Furthermore, the longitudinal cross-sectional view of other embodiment of the sliding door which concerns on FIG. 9 at this invention is shown. From the figure, the engaging portion 24c of the adjusting member 12c of the sliding door 1c according to this embodiment includes a locked portion 27c that is connected to the insertion portion 20c and has the same outer diameter as the insertion portion 20c. Here, no step is provided at the boundary between the insertion portion 20c and the locked portion 27c. The locked portion 27c is provided with a space portion 28c and a dividing groove 22c having a predetermined length from the end on the other end side as in the above embodiments.

The fixed portion 30c forms a locking portion 31c by forming the small-diameter hole 25c in a tapered shape on the rear side from a predetermined position so that the inner diameter gradually decreases.

When engaging the engaging portion 24c of the adjusting member 12c with the fixing portion 30c, the engaging portion 24c is moved to a position where the tip of the other end of the adjusting member 12c contacts the tapered portion on the rear side of the small diameter hole 25c. Is inserted into the small-diameter hole 25c by a predetermined length, and then the other end side of the adjustment member 12c is strongly pushed into the fixed portion 30c by rotating the operation portion 19c while pressing the operation portion 19c toward the fixed portion 30c. The latched portion 27c is pressed against the inner wall of the latching portion 31c formed in this, the dividing groove 22c is crushed, and the space portion 28c is contracted. On the other hand, the locked portion 27c applies a force to return elastically to the inner wall surface of the locking portion 31c, so that the other end side of the adjustment member 12c is fixed to the fixing portion 30c.

Further, at the same time, the pinion portion 17c meshes with the rack portion 14c of the protruding member 11c, so that the protruding member 11c can be protruded from the upper portion of the vertical rod 8c by rotating the operating portion 19c. Therefore, in such a structure, the sliding operation of the protruding member 11c and the operation of engaging the adjustment member 12c with the fixing portion 30c can be performed by one operation, and the workability is improved.

FIG. 10 shows a longitudinal sectional view of still another embodiment of the sliding door according to the present invention. As shown in the figure, the adjusting member 12d of the sliding door 1d according to this embodiment has an integrally formed pinion portion 17d and engaging portion 24d, and an operation portion 19d, which are constituted by different members. A convex portion 37 that is a plurality of hemispherical projections, for example, four, is formed on the back surface of the operation portion 19d, and a concave portion 36 that engages with the convex portion 37 is formed on the front surface of the pinion portion 17d.

Further, a male screw is formed on the large diameter portion 21d of the adjusting member 12d, and a female screw is formed in the small diameter hole 25d of the fixing portion 30d to be screwed with the male screw of the large diameter portion 21d.

When engaging the engaging portion 24d of the adjusting member 12d with the fixing portion 30d, after inserting the adjusting member 12d into the elongated hole 15d of the projecting member 11d, the convex portion 37 of the operating portion 19d becomes the concave portion 36 of the pinion portion 17d. The operating portion is rotated by using a tool such as a screwdriver, and the male screw of the large diameter portion 21d is screwed into the female screw of the small diameter hole 25d. Then, the dividing groove 22d is pressed and crushed by the inner wall of the small diameter hole 25d, the space portion 28d contracts, and the large diameter portion 21d is elastically deformed in the axial direction, that is, in the direction of reducing the diameter of the large diameter portion 21d.

When the adjustment member 12d is screwed by a predetermined amount, the pinion portion 17d is engaged with the rack portion 14d, and the protruding member 11d slides upward as the pinion portion 17d rotates. When the male screw of the large-diameter portion 21d passes through the female screw of the small-diameter hole 25d and reaches the large-diameter hole 26d, the force that the inner wall of the small-diameter hole 25d exerted on the outer periphery of the large-diameter portion 21d is released. 21d is elastically restored, the dividing groove 22d is returned to the original state, and the space 28d is expanded. In this state, the locked portion 27d is locked to the locking portion 31d.

At this time, if the contact member (not shown) of the protruding member 11d has not yet contacted the hanging rail, the operation portion 10d is further rotated until the contacting member contacts the hanging rail, and the protruding member 11d. Is slid upward. In this way, the attachment of the stopper 6d is completed. Since the pinion portion 17d, the engaging portion 24d, and the operation portion 19d are configured as separate members, the slip stopper 6d according to this embodiment is a large-sized case where the sliding door 1d is a wooden sliding door for an entrance. Even so, it is possible to easily attach the stopper 6 to the sliding door body 35d.

In addition, since the male screw formed in the large-diameter portion 21d and the female screw formed in the small-diameter hole 25d are screwed together, the large-diameter portion 21d is inserted into the small-diameter hole 25d. Compared with the case where the system unit 21 is pushed into the small diameter hole 25, the adjustment member 12d can be easily fixed to the sliding door main body 35d with a smaller force.

  In each of the above-described embodiments, the fixing portions 30, 30b, 30c are provided on the upper side of the vertical rod 8 of the sliding door body 35. However, the sliding door disengagement tool and the sliding door of the present invention are not limited thereto. For example, a fixing member provided with a fixing portion may be provided as a separate member, and the fixing portion of the fixing member may rotatably fix the other end side of the adjustment member. At that time, the fixing member is attached to the sliding door main body by bonding, screwing or fitting. Further, the fixing portions 30, 30b, 30c and the engaging portions 24, 24a, 24c are not limited to the above-described embodiments, and the other end side of the adjustment member may be secured to be detached by other methods such as screwing.

It is a whole side view of the state where the sliding door concerning one embodiment of the present invention was built in the frame. It is a disassembled perspective view of the front side upper end part of the said sliding door. It is a longitudinal cross-sectional view of the front side upper end part of the said sliding door. It is the front view and front sectional view of the protruding member of the sliding door. It is the side view and back view of the adjustment member of the said sliding door. It is a longitudinal cross-sectional view at the time of pushing the adjustment member of the said sliding door into a fixing | fixed part. It is a perspective view of the adjustment member of the sliding door which concerns on other embodiment of this invention. It is a longitudinal cross-sectional view of the fixing | fixed part of the sliding door which concerns on other embodiment of this invention. It is a longitudinal cross-sectional view of the sliding door which concerns on other embodiment of this invention. It is a longitudinal cross-sectional view of the sliding door concerning other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sliding door 2 Upper frame 3 Lower frame 6 Detachment stopper 7 Guide rail 11 Protruding member 12, 12a, 12c Adjustment member 14, 14c Rack part 17, 17a, 17c Pinion part 19, 19c Operation part 20, 20a, 20c Insertion part 22 22a, 22c Dividing grooves 24, 24a, 24c Engaging portions 25, 25b, 25c Small-diameter holes 27, 27a, 27c Locked portions 28, 28a, 28c Space portions 30, 30b, 30c Fixing portions 31, 31b, 31c Stop 35 Sliding door body D Tooth tip diameter M Contact surface of protruding member

Claims (4)

A rack that is mounted on the upper part of the sliding door body that runs on the lower frame and is guided by the guide rails of the upper frame, and that is provided so as to protrude upward from the upper part of the sliding door body. An adjustment member that adjusts the protrusion height of the protruding member, and has a pinion portion that meshes with the protrusion portion, and an operation portion provided on one end side of the adjustment member is operated to rotate the pinion portion, thereby projecting the protruding member A sliding door detachment preventer having a height that is adjusted, wherein the fixing member is provided on the sliding door main body or the fixing member with a fixing portion for rotatably preventing the other end of the adjustment member from coming off. The fixing portion has an opening on the contact surface of the projecting member, has a small diameter hole smaller than the diameter of the tip of the pinion portion, and engages the other end side of the preparation member in a rotatable manner at the bottom of the small diameter hole. An engaging portion that engages with the fixing portion is provided on the other end side of the adjustment member, and an engaging portion that can be inserted into the small-diameter hole is provided in the engaging portion, and the engagement provided to be connected to the inserting portion. 2. The sliding door retaining device according to claim 1, further comprising a locked portion that is locked to the locking portion, and a split groove having a predetermined length from the end portion on the other end side. Ingredients. The sliding door slip-off preventing device according to claim 2, wherein a space portion that can be elastically expanded and contracted is formed in the engaging portion when the engaging portion is inserted into the small-diameter hole. A sliding door comprising the sliding door disengagement tool according to any one of claims 1 to 3.

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