JPH09256717A - Door mounting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make i possible to mount a door between upper and lower rails with ease. SOLUTION: There are provided an upper pivot receiver 14 to be mounted on an upper guide rail 1, a lower pivot receiver 28 to be mounted on a lower guide rail 10, a lower pivot 34 which is engaged with the lower pivot receiver 28 to be mounted on the lower guide rail 10 and an upper pivot 39 which is engaged with the lower pivot receiver 28 provided projectingly on the lower end of a door 31. The upper pivot receiver 14 is provided with a fixture 17 to be mounted on the upper guide rail 1, a pivot guide 21 which slopes downward toward the middle part projectingly and presses the upper pivot 39, an engagement hole 26 which is engaged with the upper pivot 39 which projects past the pivot guide 21 and a guide wall 22a which guides the upper pivot 39 to the engagement hole 26. The upper pivot receiver 14 provides a mounting recessed part 15 which is provided so as keep a nut 20 of the fixture 17 in a predetermined position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door mounting device,
The present invention relates to an openable / closable mounting of a door between upper and lower guide rails.

[0002]

2. Description of the Related Art Conventionally, as a door mounting device of this type, for example, an upper pivot receiver is attached to an upper guide rail, and a lower pivot receiver is attached to a lower guide rail so as to face the upper pivot receiver. A lower pivot that is rotatably inserted into the lower pivot receiver is provided at a lower end of the door body that is openably and closably mounted between the upper and lower guide rails, and an upper pivot receiver is provided at an upper end of the door body. There is a structure in which an upper pivot that is rotatably inserted into is protruded so as to be vertically movable.

[0003]

In the above-mentioned conventional configuration,
When installing the door body, tilt the door body and insert the lower pivot of the door body into the lower pivot receiving body from diagonally above, push the upper pivot of this door body with your finger and lower it with the lower pivot as the center. Align the upper end of the upper pivot of this door with the receiving part of the upper pivot receiver, release the push of the upper end of this upper pivot,
The upper end of the upper pivot is inserted into the receiving portion of the upper pivot receiver.

Therefore, when the door is attached, it is necessary to push the upper pivot with a finger, and the upper end of the upper pivot is aligned with the receiving portion of the upper pivot receiver to push the upper end of the upper pivot. It is necessary to separate them, and at this time, since the space between the upper pivot receiving body and the upper pivot receiving body is narrow, there is a risk of pinching the finger pushing the upper end of the upper pivot,
As a whole, it is not easy to attach the door body, which requires a lot of labor, which is not preferable for improving the workability of attaching the door body.

Therefore, it is conceivable to push the upper pivot projecting from the upper end of the door into the receiving portion of the upper pivot receiving body for insertion, but at this time, the upper pivot is not always attached to the receiving portion of the upper pivot receiving body. It is not always inserted, and there is a situation in which the upper pivot must be inserted while aligning the upper pivot with the receiving portion of the upper pivot receiving body on the door body, which is not sufficient to improve the workability of attaching the door body. , There is a problem.

The present invention has been made in view of the above points, and an object of the present invention is to provide a door mounting device capable of easily mounting a door body.

[0007]

According to the first aspect of the present invention,
An upper pivot receiver attached to the upper guide rail, a lower pivot receiver attached to the lower guide rail so as to face the upper pivot receiver, a door body that is openably and closably mounted between the upper and lower guide rails, and this door body. A lower pivot in a vertical direction protrudingly provided at the lower end of the lower pivot and engaging with the lower pivot receiver in a freely rotatable manner, and an upper end of the door body located on a coaxial line with the lower pivot and projecting always upward. An upper pivot in a vertical direction that is biased and rotatably engages with the upper pivot receiver, the upper pivot receiver being provided at one end thereof and attached to the upper guide rail; A pivot guide part is formed at the other end part so as to be inclined downward toward the middle part and pushes down the upper pivot at the time of mounting the door body, and the pivot guide part formed at the middle part thereof. The vertical engaging hole for engaging the upper pivot protruding through the guide portion, and the upper pivot formed on both sides of the engaging hole and guided by the pivot guide portion. And a guide wall continuous with the engaging hole and guided to the engaging hole.

Then, with the lower pivot of the door engaged with the lower pivot of the door from diagonally above, the door is raised, and the upper end of the upper pivot of the door becomes the pivot guide portion of the upper pivot receiver. Abut. Then, while further raising the door body around the lower pivot, the upper end portion of this upper pivot is pressed and lowered while being guided by the pivot guide portion of the upper pivot receiver, and while passing through this pivot guide portion, The upper end of the upper pivot is engaged in the engaging hole of the upper pivot receiver.

At this time, the upper end portion of the upper pivot, which is guided by the pivot guide portion of the upper pivot receiver, is guided toward the engagement hole by the guide walls on both sides of the pivot guide portion, and from this pivot guide portion. It is securely engaged in the engagement hole without coming off. Therefore, the door body can be easily opened and closed between the upper and lower guide rails via the upper and lower pivots.

According to a second aspect of the present invention, in the first aspect of the present invention, the upper pivot receiver is provided with an attachment recess located at one end of the top pivot receiver, and rotation stopper walls are formed on both sides of the attachment recess. With a bolt insertion hole formed in the center,
The fixture includes a rectangular nut body provided in the attachment recess and having a contact edge portion that abuts against the rotation preventing walls on both sides of the attachment recess portion and an engagement edge portion that engages with the upper guide rail. And a bolt screwed to the nut body so as to be rotatably inserted in the bolt insertion hole.

Then, by rotating the bolt from one side, the nut body is tightened by this bolt, and the engaging edges of both sides of the nut body engage with the upper guide rails. The upper pivot receiver can be easily attached to the rail. At this time, the abutting edge portions on both sides of the nut body come into contact with the rotation preventing walls on both sides of the mounting recess, whereby the rotation preventing walls on both sides prevent the nut body from rotating.

Further, since the rectangular nut body is provided in the mounting recess, when the upper pivot receiver is inserted into the upper guide rail, the upper pivot receiver can be smoothly attached to the upper guide rail. It is inserted and the upper guide rail is prevented from being damaged by the nut body of the upper pivot receiver.

[0013] The invention according to claim 3 is the invention according to claim 1 or 2.
In the invention described above, the engagement ridge formed along either side of either the upper guide rail or the upper pivot receiver and the engagement ridge formed along the other side of the other are engaged. And a mating engaging groove.

When the upper pivot receiver is inserted into the upper guide rail, the upper pivot receiver is smoothly inserted into the upper guide rail by the engaging projections and the engaging recesses that engage with each other. Then, by rotating the bolt, the engaging edges on both sides of the nut body are engaged with the upper guide rail, so that the upper pivot receiver is stable in the upper guide rail without rattling. Mounted.

The invention according to claim 4 is the first or second invention.
In the invention described above, the pivot guide portion is formed so as to be inclined downward toward the engagement hole, and a guide slope for abutting and pressing the upper end portion of the upper pivot, and both side portions on both sides in the width direction of the guide slope surface. And a guide wall that is formed continuously with the guide wall and that has a widening edge portion that widens the insertion opening of the guide slope and that guides the upper end portion of the upper pivot.

The upper end of the upper pivot is pressed and lowered while being guided by the pivot guide slope of the upper pivot receiver, and is automatically engaged in the engaging hole of the upper pivot receiver from the pivot guide slope. It At this time, both upper ends of the upper pivot are guided by the guide walls having the expanded edges on both sides, and are guided by the guide walls on both sides which are continuous with the guide walls, so that the upper pivot should be removed from the pivot guide slope. Instead, the upper end of the upper pivot is smoothly engaged automatically in the engaging hole of the upper pivot receiver.

The invention according to claim 5 is the invention as claimed in claims 1, 2, and 4.
In any one of the inventions described above, the upper pivot has a rotatable guide roller at the upper end thereof which is guided by contacting the pivot guide portion.

When the upper end of the upper pivot is engaged in the engaging hole of the upper pivot receiver, the guide roller of the upper end of the upper pivot is rotated to the pivot guide portion of the upper pivot receiver. It is guided, pushed down and automatically engaged in the engagement hole of the upper pivot receiver. At this time, by rotating the guide roller, the frictional resistance of the upper end portion of the upper pivot is small and the upper end portion of the upper pivot is smoothly engaged in the engaging hole of the upper pivot receiver.

[0019]

An embodiment of the present invention will be described below with reference to the accompanying drawings.

Reference numeral 1 denotes a left-right upper guide rail fixed to the lower surface of the top plate 2. The upper guide rail 1 is fitted in a left-right fitting groove 3 formed on the lower surface of the top plate 2. There is a substantially gate-shaped rail main body 4 that fits together, and the front and rear side plates 5 of the rail main body 4 are integrally formed with left and right engaging projections 6 that protrude in parallel toward each other. Has been done. Guide grooves 7 are formed at the inner ends of the front and rear engaging projections 6, and guide recesses are provided between the front and rear rail projections 6 and the upper plate portion 8 of the rail body 4. 9 is formed.

Reference numeral 10 denotes a lower guide rail which is fixed to the main plate 11 so as to face the upper guide rail 1. Since the lower guide rail 10 is formed in the same structure as the upper guide rail 1, the upper guide rail is formed. The reference numeral used in 1 is entered and the description is omitted. And this lower guide rail
An upper surface 10 of the upper guide rail 1 faces upward and is fitted and fixed to a fitting groove 12 formed in the base plate 11. In addition, reference numeral 13 in the drawing denotes a side plate fixed between one ends of the top plate 2 and the base plate 11.

Reference numeral 14 denotes an upper pivot receiver which is attached to one end of the upper guide rail 1.
Reference numeral 14 is a size that can be fitted into the rail body 4 of the upper guide rail 1 and is formed in a shape elongated in the left-right direction from metal or synthetic resin. This upper pivot receiver 14 has a mounting recess 15 having a rectangular shape in a plan view, which has locking walls 15a on both sides, at one end upper part thereof, and a vertical bolt insertion hole 16 at the center of the mounting recess 15. It is formed to penetrate.

Further, the bolt insertion hole 16 is provided with an attachment 17 for attaching to the upper guide rail 1. This fixture 17 includes a bolt 18 inserted through the bolt insertion hole 16.
The bolt insertion hole 16 is provided at the lower end of the bolt 18.
Larger bolt head 19 is integrally formed,
At the upper end of 18, a rectangular plate-shaped nut body 20 arranged in the mounting recess 15 so as not to rotate is screwed. The nut body 20 has a contact edge portion 20a that abuts against the rotation preventing walls 15a on both side portions on both side edge portions, and engages with the engaging protrusion 6 of the upper guide rail 1 on both side edge portions on the other side. It is formed in a rectangular plate shape having an engaging edge portion 20b.

Further, the upper pivot receiver 14 has a pivot guide portion 21 at the lower end of the other end, which is projected toward the middle portion while being inclined downward. This pivot guide 21
Is a taper-shaped guide slope 22 protruding downwardly from the lower end of the other end of the upper pivot receiver 14 toward the middle part, and descends along the guide slope 22 at both ends in the width direction of the guide slope 22. It has a tapered guide protrusion 23 that is inclined and projected, and is formed in a groove shape. Guide ridges at both ends
23 is a splayed edge 23a that widens the insertion opening 25 of the guide slope 22 in a divergent manner and the sloping edge 23a at both ends of the splayed edge 23a descends in parallel toward the middle portion. Guide wall 23
have b.

Further, the upper pivot receiver 14 is formed with a vertically engaging hole 26 penetrating through the middle portion thereof. A side wall 22b located at the side of the engaging hole 26 and having guide walls 22a continuous with the guide wall 23b of the guide ridges 23 at both ends in the width direction and continuous with the engaging hole 26. Are formed so as to project horizontally.

An upper pivot, which will be described later, passing through the pivot guide portion 21 is inserted into and engaged with the engaging hole 26 from below. At this time, the upper end of the upper pivot is The expanded edge portion 23a, the guide wall 23b, and the guide wall 22a are guided toward the engagement hole 26 and are engaged in the engagement hole 26 without being disengaged from the pivot guide portion 21. There is.

Further, the upper pivot receiver 14 is engaged at both side edges in the width direction thereof so as to engage with the engaging projections 6 of the upper guide rail 1 from one end to the other end. Recesses 27 are formed respectively. Then, one end portion of the engaging recessed line 27 on both side edge portions and both engaging edge portions of the nut body 20.
The engaging projections 6 of the upper guide rail 1 which are opposed to each other are sandwiched by the 20b.

Reference numeral 28 denotes a lower pivot receiver attached to one end of the lower guide rail 10, and the lower pivot receiver is
Reference numeral 28 is a size that can be fitted into the rail body 4 of the lower guide rail 10 and is formed of synthetic resin in a shape that is long in the left-right direction. The lower pivot receiver 28 is provided with a mounting tool 29 for mounting the lower guide rail 10 at one end thereof, and the lower pivot receiver 28 at the other end thereof.
Is attached to the lower guide rail 10, the engagement hole 26 in the vertical direction is positioned coaxially with the engagement hole 26 of the upper pivot receiver 14.
30 are formed.

Reference numeral 31 denotes a door body which is openably and closably mounted between the upper and lower guide rails 1 and 10. The lower surface of the door body 31 is open at its lower end near one end in the left-right direction (width direction). A vertical buried hole 32 is formed.
A cylindrical pivot case 33 is embedded in and fixed to 32.

A lower pivot 34, which is vertically engaged with the engaging hole 30 of the lower pivot receiver 28, is projected downward from the pivot case 33 and is formed under the lower pivot 34. An adjusting nut 36 rotatably provided at the lower end of the pivot case 33 is screwed to the screw shaft portion 35. By rotating the adjustment nut 36, the amount of protrusion of the lower pivot 34 in the vertical direction is adjusted.

Further, in the vicinity of one end of the door body 31 in the left-right direction (width direction), the lower pivot is provided at the upper end thereof.
A vertically embedded hole 37, which is located on the same axis as 34 and has an open upper surface, is formed, and a cylindrical pivot case 38 is fixed in the embedded hole 37 in a buried state.

Further, the pivot case 38 has an upper pivot 39, which is vertically engaged with the engagement hole 26 of the upper pivot receiver 14, and which projects upward. The pivot case 38 has an insertion hole 40 formed at an upper end thereof through which the upper pivot 39 is vertically movable, and a cap 41 is detachably fitted at a lower end thereof.

Further, the upper pivot 39 has a stopper 43 at its lower end which is locked to the opening edge 42 of the insertion hole 40.
Is formed to have a diameter larger than that of the insertion hole 40, and a diameter-reduced step portion 44, a fitting shaft portion 45, and the fitting shaft portion are sequentially formed upward at the upper end thereof.
Annular grooves 46 each having a diameter smaller than 45 are formed.

Further, the upper end portion of the upper pivot 39 abuts on the pivot guide portion 21 of the upper pivot receiver 14 and is engaged in the engaging hole 26 from the pivot guide portion 21. A guide roller 47 is rotatably fitted to the upper end of 39.

The guide roller 47 is made of a synthetic resin in a cap shape and is sized so as to be engaged with the pivot guide portion 21 and the engagement hole 26. The inner wall portion of the guide roller 47 has the fitting shaft portion 45. Has a fitting portion 48 which is rotatably fitted in and a ring-shaped ridge 49 which is rotatably fitted in the annular groove 46 in a retaining state, and the pivot guide portion 21 is provided at the upper end thereof.
It is formed with an arc-shaped contact portion 50 that abuts against.

Further, a coil spring 51 for constantly urging the upper pivot 39 upward is housed in the pivot case 38, and an upper end portion of the coil spring 51 abuts on a stopper 43 of the upper pivot 39. The lower end portion is in contact with the cap 41. And this coil spring 51 is a stopper
The upper pivot 39 always protrudes upward while 43 is locked to the opening edge 42 of the insertion hole 40.

Next, the operation of the above embodiment will be described.

An upper pivot receiving body 14 is fitted to one end of the upper guide rail 1, and engaging projections 6 on both sides of the upper guide rail 1 are fitted into engaging recesses 27 on both sides of the upper pivot receiving body 14.
With the bolts 18 engaged with each other, the bolt head 19 of the fixture 17 at one end of the upper pivot receiver 14 is rotated to rotate the bolt 18, so that the nut body 20 is screwed into the bolt 18. Be done.

Then, as shown in FIGS. 1 and 5, the upper guide is provided between the engaging edge portions 20b on both sides of the nut body 20 and the engaging groove portions 27 located on both edge portions of the bottom of the mounting recess 15. Rail 1
The engaging ridges 6 on both sides of are respectively clamped and clamped.
Also, the insertion port for the pivot guide portion 21 of the upper pivot receiver 14
The tip of 25 is brought into contact with the lower surface of the rail body 4 of the upper guide rail 1. Therefore, the upper pivot receiver 14 is easily fixed to one end of the upper guide rail 1, and the insertion port 25 of the pivot guide portion 21 of the upper pivot receiver 14 is set so that the upper end of the upper pivot 39 can be easily inserted. To be done.

At this time, that is, when the upper pivot rail 14 is fitted to the upper pivot rail 14, the engaging projections 6 on both sides of the upper guide rail 1 and the both sides of the upper pivot rail 14 are fitted. The upper pivot receiver 14 can be smoothly and easily fitted to the upper guide rail 1 by fitting the engaging groove 27, and the rectangular nut body 20 can be fitted to the upper pivot receiver. Since the nut body 20 disposes the upper pivot rail 1 in the mounting recessed portion 15 of the stopper 14 so as not to rotate, the upper pivot rail 14 is fitted to the upper guide rail 1 without damaging the upper guide rail 1. It In addition, the bolt
By tightening the nut body 20 at 18, the upper pivot receiver 14 is securely held on the upper guide rail 1 without rattling.

Next, by fitting the lower pivot receiver 28 to one end of the lower guide rail 10 and tightening the fixture 29 at one end of this lower pivot receiver 28, one end of the lower guide rail 10 is The lower pivot receiver 28 is easily fixed to the portion. Then, the engaging hole of the lower pivot receiver 28
30 and the engagement hole 26 of the upper pivot receiver 14 are positioned coaxially.

Next, with the lower pivot 34 of the door 31 inserted into the engaging hole 30 of the lower pivot receiver 28 from diagonally above and engaged, the door 31 is raised and the upper part of the door 31 is raised. The upper end of the pivot 39 is brought into contact with the insertion opening 25 of the pivot guide portion 21 of the upper pivot receiver 14. At this time, the pivot guide
Since the insertion opening 25 of the opening 21 is formed by expanding the expanding edges 23a of the guide walls 23b on both sides, the upper end of the upper pivot 39 can be easily contacted from the insertion opening 25 to the pivot guide portion 21. Contacted.

The door body 31 is centered on the lower pivot 34.
Further, the upper end portion of the upper pivot 39 is pushed against the coil spring 51 while being guided by the pivot guide portion 21 of the upper pivot receiver 14 and is lowered. Then, the upper end of the upper pivot 39 is moved to the position of the engagement hole 26 through the pivot guide portion 21, and the upper pivot 39 is pushed up by the restoring force of the coil spring 51, so that the upper pivot 39 The upper end portion is inserted into and engaged with the engagement hole 26 of the upper pivot receiver 14.

Therefore, by raising the door body 31 around the lower pivot 34, the upper end portion of the upper pivot 39 guided by the pivot guide portion 21 is automatically inserted into the engagement hole 26 of the upper pivot receiver 14. That is, the door body 31 is engaged, that is, is mounted between the upper and lower guide rails 1 and 10 via the upper and lower pivots 34 and 39 so as to be easily opened and closed.

At this time, the pivot guide portion 21 includes a guide slope 22 which is projected downwardly and obliquely toward the engagement hole 26, and a guide projection which is projected obliquely downward to both ends of the guide slope 22 in the width direction. The guide wall 23b of the strip 23 is formed in a concave groove shape, and the guide wall 22b is formed on the side of the engagement hole 26 and has a guide wall 22a continuous with the guide wall 23b and continuous with the engagement hole 26. Therefore, the upper end portion of the upper pivot 39 is guided by the concave groove-shaped pivot guide portion 21 of the upper pivot receiver 14 and pressed against the coil spring 51 to be lowered, and the upper end portion of the upper pivot 39 is Is guided into the engagement hole 26 of the upper pivot receiver 14 without being disengaged from the pivot guide portion 21, and is automatically engaged.

Further, since the upper pivot 39 has a rotatable guide roller 47 which is guided by contacting the pivot guide portion 21 at the upper end portion thereof, the upper end portion of the upper pivot 39 is engaged with the upper pivot receiver 14. When engaging in the fitting hole 26, the guide roller 47 at the upper end of the upper pivot 39 is rotated while the pivot guide portion 21 of the upper pivot receiver 14 having the groove shape is formed.
And is pushed down and automatically engaged in the engagement hole 26 of the upper pivot receiver 14. At this time, guide roller
By rotating 47, the frictional resistance of the upper end of the upper pivot 39 is small, and the upper end of the upper pivot 39 is smoothly engaged in the engagement hole 26 of the upper pivot receiver 14.

Next, in the above-described embodiment, the engaging ridges 6 are formed on both sides of the upper guide rail 1, and the engaging ridges 6 are fitted on both sides of the upper pivot receiver 14. Although the case where the engaging recesses 27 are formed has been described, the present invention is not limited to this, and the engaging recesses 27 are formed on both sides of the upper guide rail 1.
The engaging protrusions 6 that fit into the engaging recesses 27 may be formed on both sides of the upper pivot receiver 14, respectively. With this structure also, the upper pivot receiver 14 is smoothly fitted in the upper guide rail 1, and the upper pivot receiver 14 does not rattle with respect to the upper guide rail 1 by the fixture 17. Securely fixed.

[0048]

According to the first aspect of the present invention, when the door body is attached, the upper end portion of the upper pivot of the door body is brought into contact with the pivot guide portion of the upper pivot receiver, and the upper pivot portion is moved upward by the door body. By pushing it toward the engagement hole of the pivot receiver, the upper pivot can be easily engaged with the engagement hole of the upper pivot receiver from the pivot guide portion. At this time, since the upper pivot receiver is located on the engagement hole side and has guide walls continuous with the engagement hole on both sides, the guide walls on both sides surely guide the upper pivot to the engagement hole. The upper pivot can be reliably prevented from coming off the engaging hole.

Further, it is not necessary to push the upper pivot with a finger when mounting the door body, and the upper end of the upper pivot is aligned with the receiving portion of the upper pivot receiver to release the pushing of the upper pivot. It is not necessary, and it is possible to prevent a finger having the upper end of the upper pivot pushed in between the finger and the upper pivot receiver.

Therefore, by pushing the upper pivot toward the engaging hole by the door body, the upper pivot can be smoothly engaged with the engaging hole, and the door body can be easily provided between the upper and lower guide rails. Can be installed on.

According to the second aspect of the present invention, the nut body of the fixture is provided in the mounting recess of the upper pivot receiver, and the nut body is abutting on both sides so as to abut against the detent walls on both sides of the mounting recess. Since it has an edge, it is possible to securely prevent the nut body from rotating and damaging the upper guide rail when inserting the upper pivot receiver into the upper guide rail, and the upper pivot receiver is fixed to the upper guide rail. When doing so, the nut body can be tightened simply by rotating the bolt with respect to the positioned nut body, and the upper guide rail is attached to the upper guide rail at the engaging edges on both sides of the nut body. Can be easily fixed.

According to the third aspect of the invention, the upper pivot receiver can be smoothly engaged with the upper guide rail by the engaging projections and the engaging recesses that engage with each other. Easy to assemble.

According to the fourth aspect of the present invention, the upper end of the upper pivot can be easily inserted into the insertion opening of the guide slope that is expanded by the expansion edges of the guide walls on both sides.
The guide walls on both sides can smoothly guide the upper end of the upper pivot toward the guide walls on both sides, so that the upper end of the upper pivot can be securely connected from the insertion opening of the guide slope to the engaging hole. Can be induced.

According to the fifth aspect of the present invention, the upper pivot has a rotatable guide roller at the upper end thereof which is guided by contacting the pivot guide portion. Therefore, the upper end of the upper pivot is guided by this guide roller. The mouse can be moved along the pivot guide portion, and the upper end portion of the upper pivot can be engaged with the engagement hole.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a door attachment device in an attached state showing an embodiment of the present invention.

FIG. 2 is a side view of the upper pivot receiver of the same.

FIG. 3 is a top and bottom view of the same.

FIG. 4 is a sectional view of the same.

FIG. 5 is a side view of the upper pivot receiver that is attached to the upper guide rail of the same.

FIG. 6 is a sectional view of the upper pivot of the same.

FIG. 7 is a perspective view showing a mounted state of the door body.

[Explanation of symbols]

 1 Upper guide rail 6 Engaging ridge 10 Lower guide rail 14 Upper pivot receiver 15 Mounting recess 15a Detent wall 16 Bolt insertion hole 17 Fixture 18 Bolt 20 Nut body 20a Abutment edge 20b Engagement edge 21 Pivot guide Part 22 Guide slope 22a Guide wall 23a Expansion edge 23b Guide wall 25 Insertion hole 26 Engagement hole 27 Engagement groove 28 Lower pivot receiver 31 Door 34 Lower pivot 39 Upper pivot 47 Guide roller

Claims (5)

[Claims] 1. An upper pivot receiver to be mounted on an upper guide rail, a lower pivot receiver to be mounted on a lower guide rail so as to face the upper pivot receiver, and a door which is openably and closably mounted between the upper and lower guide rails. A lower pivot in a vertical direction protrudingly provided at a lower end portion of the door body and rotatably engaged with the lower pivot receiver, and an upper end portion of the door body which is always located coaxially with the lower pivot body. An upper pivot in a vertical direction that is urged to project upward and rotatably engages with the upper pivot receiver, and the upper pivot receiver is provided at one end of the upper pivot receiver and is attached to the upper guide rail. A mounting fixture to be mounted, a pivot guide part formed on the other end part so as to be inclined downward toward an intermediate part and configured to press and lower the upper pivot part when mounting the door body, and a pivot guide part formed at an intermediate part thereof. A vertical engaging hole for engaging the upper pivot protruding through the pivot guide portion, and the upper portion formed on both sides located on the engaging hole side and guided by the pivot guide portion A door mounting device, comprising: a guide wall that guides the pivot to the engagement hole and is continuous with the engagement hole. 2. The upper pivot receiver has a mounting recess located at one end of the mounting recess and formed with anti-rotation walls on both sides, and a bolt insertion hole formed in the center of the mounting recess. The fixture is a rectangular nut body that is provided in the attachment recess and has an abutting edge portion that abuts against the detent walls on both sides of the attachment recess portion and an engaging edge portion that engages with the upper guide rail.
2. A bolt which is rotatably inserted into the bolt insertion hole and screwed to the nut body.
Door attachment device described. 3. An engagement ridge formed along both sides of one of the upper guide rail and the upper pivot receiver, and an engagement ridge formed along both sides of the other. The engaging recessed line which matches is provided, It is characterized by the above-mentioned.
Or the door mounting device described in 2. 4. The pivot guide portion is formed so as to be inclined downward toward the engagement hole, and has a guide slope for abutting and pressing the upper end portion of the upper pivot, and both side portions on both sides in the width direction of the guide slope surface. The door according to claim 1 or 2, further comprising: a guide wall that is formed continuously with the guide wall and that has an expanding edge portion that expands the insertion opening of the guide slope and that guides the upper end portion of the upper pivot. Mounting device. 5. The door mounting according to claim 1, wherein the upper pivot has a rotatable guide roller at an upper end thereof which is guided by contacting with a pivot guide portion. apparatus.