JPH102157A - Construction of folding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely maintain a construction of a folding door in a state expanded linearly to prevent it from being fallen down when it is folded. SOLUTION: Side projections 6 are provided respectively to both up and down ends of the side ends of a panel body. Chipped gear sections 7 are provided to the front ends of the side projections 6. The upper chipped gear sections 7 on panel bodies 1 adjacent to each other are interlocked with the lower chipped gear sections 7. Two pivots inserted into insertion-holes of two upper chipped gear sections 7 interlocked with each other in a rotatable manner are connected with coupling plates 10, and two upper chipped gear sections 7 are interlocked with each other to connect. Two pivots inserted into insertion-holes of two lower chipped gear sections 7 interlocked with each other in a rotatable manner are connected with the coupling plates 10, and two lower chipped gear sections 7 are interlocked with each other to connect. The lower ends of two upper pivots are inserted into holes opened in the upper surfaces of a hinge column 11. The upper ends of two lower pivots are inserted into holes opened in the lower surface of the hinge column 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding door structure in which two panels are foldably connected.

[0002]

2. Description of the Related Art An upper running body running on an upper rail and an lower running body running on a lower rail are respectively provided upward and downward from one of upper and lower surfaces of one end of a panel body, and the other end of the panel body is provided. Folding doors which are connected by hinge means are known. As shown in FIG. 10, the hinge means of this conventional folding door has, as shown in FIG. 10, a bearing portion 40 having a C-shaped cross section projecting from a side end of both panel bodies 1 to have a U-shaped cross section. The hinge means is constituted by pivotally supporting the bearing portions 40 on the shaft portions 42 provided at both ends of the opening of the hinge body 41, respectively.

[0003]

However, in the conventional example having the above-described structure, each bearing portion 40 is provided with each shaft portion 4.
2 are free to rotate with respect to each other, so that when the two panel bodies 1 are folded, the two panel bodies 1 may not have the same rotation angle, or the upper folding angle and the lower folding angle may be different. There is a problem that the folding angle may not coincide with the folding angle of the other, or the two folded panel bodies 1 may be inclined.

Further, in the conventional folding door, there is no means for holding the two panel bodies 1 in a linearly extended state. There is a risk that it will. The present invention has been made in view of the above-described problems of the conventional example, and prevents falling down when folded, and can reliably hold a straightly extended state with a simple configuration. SUMMARY OF THE INVENTION It is an object of the present invention to provide a folding door structure that can smoothly perform operations of locking and unlocking between a locking portion and a locked portion.

[0005]

In order to solve the above-mentioned problems of the present invention, the structure of the folding door according to the present invention is such that the upper rails 2 are respectively moved upward and downward from the upper and lower surfaces of one end of the panel body 1 respectively. Upper traveling body 3 and lower rail 4 for traveling
And a lower protruding body 5 that runs on the vehicle body. Side protruding portions 6 are provided at upper and lower ends of side ends of the other end of the panel body 1, respectively.
The side protruding portion 6 is formed integrally with the side protruding portion 6 and has a toothless gear portion 7, and an insertion hole 8 penetrating vertically is provided at the center of the toothless gear portion 7, so that a notch The two shafts 9 rotatably inserted into the respective insertion holes 8 of the two toothless toothed gear portions 7 meshing with each other and the lower toothless gear portions 7 with each other. The two upper toothless gear portions 7 are meshed and connected to each other, and the two shafts 9 rotatably inserted into the respective insertion holes 8 of the two lower toothless gear portions 7 meshing with each other are connected by a connecting plate 10. The lower two toothless gear portions 7 are meshed and connected to each other, and the hinge column 11 is arranged between the upper two meshing toothless gear portions 7 and the lower two meshing toothless gear portions 7, The lower ends of the upper two shafts 9 are inserted into the holes 12 opened in the upper surface of the hinge post 11, respectively. The upper end of the shaft 9 is characterized in that each formed by inserting into a hole 12 which opens in the lower surface portion of the hinge pillar 11. With such a configuration, 2
When the two panel bodies 1 are folded and rotated, the two panel bodies 1 rotate in conjunction with each other while the toothless gear portions 7 mesh with each other at the upper and lower portions. The panel body 1 has the same rotation angle, the upper folding angle and the lower folding angle match, and the two folded panel bodies 1 are prevented from tilting.

Further, there is provided a spread state holding means 13 for holding a state in which the two panel bodies 1 connected in a freely foldable manner are linearly spread, and a side projecting portion 6 of one of the panel bodies 1 is provided. The formed locking portion 14 and the laterally projecting portion 6 of the other panel body 1 which can be elastically locked to the locking portion 14 when the two panel bodies 1 are spread linearly. It is also preferable that the extended state holding means 13 be constituted by the locked portion 15. With such a configuration, when the two panel bodies 1 are linearly formed, the locking portion 14 and the locked portion 15 are elastically locked to maintain a linear state. .

It is also preferable that a grease reservoir 16 is provided at a position where the retaining portion 14 to the engaged portion 15 is retained, and the grease reservoir 16 is filled with grease 17. With such a configuration, when the locking portion 14 is elastically locked to the locked portion 15 and when the locking is released, the slip is improved by the grease 17 and the elastic locking is smoothly performed. An unlocking operation can be performed.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the accompanying drawings. An upper traveling body 3 that travels on the upper rail 2 upward from the upper surface of one end of the panel body 1 and projects downward on the lower rail 4 from the lower surface of one end of the panel body 1 The body 5 is projected, and the other side ends of the two panel bodies 1 are rotatably connected to each other to form a folding door.

A structure for rotatably connecting the other end portions of the two panel bodies 1 is as follows. That is, the side protruding portions 6 are respectively provided at the upper and lower ends of the side end portion of the other end portion of the panel body 1, and the toothless gear is integrally formed with the side protruding portion 6 at the rear end of the side protruding portion 6. The part 7 is formed. The side protruding portion 6 is formed of a synthetic resin, and is fixed to the panel body 1 with a screw 25. Side projection 6
An insertion hole 8 penetrating vertically is formed at the center of the toothless toothed gear portion 7 provided in the above. The upper and lower gears of the upper and lower sets of the toothless gear portions 7 meshing with the upper and lower toothless gear portions 7 of the adjacent panel body 1 mesh with each other. The two holes provided in the connection plate 10 on the upper surface side and the lower surface side are communicated with the insertion holes 8 of the two toothless gear portions 7, respectively. 8. The shaft 9 is inserted into the hole, and the shaft 9 is prevented from coming off by the stopper means 18 so that the shaft 9 does not come off (in the embodiment shown in FIG.
Is configured). In this way, the upper two toothless gear portions 7 are meshed and connected, and the lower two toothless gear portions 7 are meshed and connected.

A hinge column 1 is provided between the two upper meshing toothless gear portions 7 and the lower two meshing toothless gear portions 7.
1 and the lower ends of the upper two shafts 9 are inserted into the holes 12 opened in the upper surface of the hinge post 11, respectively, and the upper ends of the lower two shafts 9 are inserted into the lower surface of the hinge post 11, respectively. It is inserted into the hole 12 to be opened. 2 to 6
7 shows a portion where the two panel bodies 1 are rotatably connected at the top, and FIGS. 7 and 8 show a portion where the two panel bodies 1 are rotatably connected at the bottom.

The folding door constructed by rotatably connecting the two panel bodies 1 as described above allows the upper traveling body 3 and the lower traveling body 5 to travel along the upper rail 2 and the lower rail 4. The two panel bodies 1 can be in a straightened extended state (that is, a closed state) and the two panel bodies 1 can be in a folded state (that is, an open state).
Here, when the two panel bodies 1 are folded and rotated, the two panel bodies 1 rotate in conjunction with each other while the toothless gear portions 7 mesh with each other at the upper and lower portions, and the two panel bodies 1 are rotated. At the time of folding, both panel bodies 1 rotate in conjunction with each other, the angles of both panel bodies 1 in the folded state become the same, and the upper folding angle and the lower folding angle match, This prevents the folded panel body 1 from tilting.

By the way, in the present invention, there is provided a spread state holding means 13 for holding a state in which the two panel bodies 1 foldably connected to each other are linearly spread.
That is, as shown in FIGS. 3, 4 and 5, a columnar locking portion 14 protrudes from the surface of the side protruding portion 6 provided on the upper part of one panel body 1. On the surface side of the side protruding portion 6 provided on the upper part of the other panel body 1, a locked portion 15 having a substantially U-shaped cross section and having elasticity is provided. The extended state holding means 13 is constituted by the part 15.

Thus, the folding door is made up of two panels 1
Immediately before the front panel is extended so as to be linear, the front end of the locked section 15 elastically passes over the locking section 14 and the two panel bodies 1
Are linearly extended, and a locked portion 15 having a substantially V-shaped cross section is elastically locked to the locking portion 14 having a columnar shape. Since the locked portion 15 is locked to the locking portion 14 in this manner, the state in which the folding door is extended so that the two panel bodies 1 are linear is maintained, and the folding door naturally moves from the extended state. The folding door does not open in the direction of folding.

The grease reservoir 16 is provided at the position where the locking portion 14 to the locked portion 15 is locked, and the grease reservoir 16 is filled with grease 17 so that the locking portion 14 is fixed to the locked portion 1.
When elastically locking to and unlocking from the lock 5, the grease 17 may be used to improve the sliding so that the elastic locking and unlocking operations can be performed smoothly. In the embodiment shown in FIG. 9, an example is shown in which a groove portion is provided on the outer peripheral portion of the cylindrical locking portion 14 and the groove portion is filled with grease 17 as a grease reservoir 16.
Alternatively, a grease reservoir 16 may be provided to fill the grease 17.

[0015]

According to the first aspect of the present invention, as described above, side projections are provided at the upper and lower ends of the side end of the other end of the panel body, respectively. The toothless gear part is formed integrally with the side protruding part in the part, an insertion hole penetrating vertically is provided at the center of the toothless gear part, the upper toothless gear parts on adjacent panel bodies and the lower toothless part The two shafts rotatably inserted into the respective insertion holes of the two meshing toothless gear portions meshing with each other are connected by a connecting plate, and the two upper toothless gear portions are meshed and connected. The two shafts rotatably inserted into the respective through holes of the two lower meshing toothed gear portions are connected by a connecting plate, and the lower two missing toothed gear portions are meshed and connected, and the upper meshing is performed. Place a hinge column between the two missing gears and the lower meshing two missing gears. Are inserted into the holes opened on the upper surface of the hinge column, and the upper ends of the two lower shafts are inserted into the holes opened on the lower surface of the hinge column. When folding and rotating, the two panel bodies rotate in conjunction with each other while the toothless gear portions mesh with each other at the upper and lower parts. When the two panel bodies are folded, the two panel bodies have the same rotation angle. In addition, the upper folding angle and the lower folding angle match, which prevents the two folded panel bodies from tilting, and as a result, it is easy to fall down when folded, thereby ensuring a simple structure. Can be prevented.

According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, a state in which two panel bodies connected in a foldable manner are linearly extended is maintained. Locking means formed on the side protruding portion of one of the panel bodies, and elastically locking with the locking section when the two panel bodies are linearly extended. The extended state holding means is constituted by the locked portion formed on the laterally projecting portion of the other panel body that has become free, so that when the two panel bodies are straightened, The state in which the portion and the locked portion are elastically locked and linearly extended can be reliably held with a simple configuration.

According to the third aspect of the present invention, in addition to the effects of the second aspect, a grease reservoir is provided at the locking portion of the locking portion or the locked portion so that the grease can be collected. Because the grease is filled, when the locking part elastically locks and unlocks the locked part, the slip improves with grease, smooth elastic locking and unlocking operation Can be done.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

FIG. 2 is a perspective view of a portion in which upper end portions of the panel body are rotatably connected to each other.

FIG. 3 is a perspective view of a portion where the toothless gear portion provided on the upper side protruding portion is meshed and connected.

FIG. 4 is an exploded perspective view of the same.

FIG. 5 is a plan view of the same.

FIG. 6 is a front view of the same.

FIG. 7 is a front view of a portion where the toothless gear portion provided on the lower side protruding portion of the above is meshed and connected.

FIG. 8 is a plan view of the same.

FIG. 9 is a perspective view showing an example in which the grease pool is provided.

FIG. 10 is a sectional view of a conventional example.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 panel body 2 upper rail 3 upper running body 4 lower rail 5 lower running body 6 side projecting portion 7 toothless gear portion 8 insertion hole 9 shaft 10 connecting plate 11 hinge post 12 hole 13 spreading state holding means 14 locking portion 15 Locked part 16 Grease pool 17 Grease

Claims (3)

[Claims] 1. An upper running body running on an upper rail and a lower running body running on a lower rail are respectively provided from upper and lower surfaces of one end of a panel body toward upper and lower sides, respectively, and the other end of the panel body is provided. Side projections are provided at both upper and lower ends of the side end portion, and a toothless gear portion is formed integrally with the side projection portion at the side projection portion, and an insertion hole vertically penetrates the center of the toothless gear portion. Are provided, and the upper toothless gear portions and the lower toothless gear portions of adjacent panel bodies are meshed with each other, and two rotatably inserted through the respective insertion holes of the two meshing upper toothless gear portions. The shafts are connected by a connecting plate so that the two upper toothless gear portions are meshed and connected, and the two shafts rotatably inserted into the respective insertion holes of the two lower meshing toothless gear portions are connected by the connecting plate. To engage and connect the lower two missing toothed gear parts, A hinge pillar is arranged between the toothless gear part of the lower gear and the two meshing toothless gear parts meshing with the lower part, and the lower ends of the two upper shafts are respectively inserted into the holes opened in the upper part of the hinge pillar, and Characterized in that the upper ends of the two shafts are inserted into holes opened in the lower surface of the hinge pillar, respectively. 2. A spread state holding means for holding a state in which two panel bodies connected in a foldable manner are linearly spread, and a locking formed on a laterally projecting portion of one of the panel bodies. And a locked portion formed on a side protruding portion of the other panel body which is elastically lockable to the locking portion when the two panel bodies are linearly spread. 2. The folding door structure according to claim 1, wherein said folding state holding means is constituted. 3. The folding door structure according to claim 2, wherein a grease pool is provided at the locking portion of the locking portion or the locked portion, and the grease pool is filled with grease.