JP3078222B2 - Non-rail sliding door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door which does not use a rail in which a door is suspended from a support.

[0002]

2. Description of the Related Art A non-rail sliding door in which a support is provided outside a passage, a horizontally long door is suspended on a guide roller provided on the support, and the door is movable in a longitudinal direction is widely known. . (See, for example, JP-A-64-52992,
319193, 5-295975, Shokai 54
-21932, 58-23998, 60-19
No. 1694, Japanese Utility Model Laid-open No. 23698, 5-9239
No. 9, 6-83899 and 7-1289. )

However, in the conventional non-rail sliding door, as shown in FIG. 10, when the door 1 is positioned in the passage, the weight of the door 1 and the clearance between the door 1 and the guide roller A cause the door 1 to move. 1 is tilted at the moving end, the door stop side of the door body 1 hangs down (Y portion in FIG. 10), and the door stop side of the door body 1 and the door stop pillar are brought into contact with a normal position. And a large downward bending moment is generated at the door portion protruding from the support 2 around the support 2, and this force is generated by the guide rollers A1 and A
4, the opening / closing operation of the door body 1 is extremely difficult, and the durability is poor.

Attempts have been made to prevent the door body 1 from hanging on the door stop side, for example, by making the frame of the door body 1 thicker or attaching a reinforcing material. However, the weight of the door body 1 is unnecessarily reduced. Therefore, the workability during construction was significantly deteriorated. As described above, the conventional non-rail sliding door can be formed only to a length that does not cause hanging, and is not suitable for a passage having a large frontage.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to make a door body longer, to prevent the door stop from drooping when the door body is positioned in a passage, and to have excellent operability. To provide non-rail sliding doors.

[0006]

In the non-rail sliding door according to the present invention, a support is provided outside the passage, a horizontally long door is suspended on a guide roller provided on the support, and the door is moved in the longitudinal direction. The passage is openable and closable so that the door can be opened and closed. The door push-up member, which is located below the door and pushes up the door from below, is placed on a support roller provided on the support, and the door push-up member moves toward the passage. In this state, the protruding end is moved upward, the door body and the door body push-up member are engaged, the door body push-up member is moved with the movement of the door body, and one end of the door body push-up member is moved to the passage side. The door body is pressed against the protruding door body to apply a pushing force to the door body to prevent the moving end of the door body from hanging.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The non-rail sliding door according to the present invention is as follows. That is, in a non-rail sliding door in which a support is provided outside the passage, a horizontally long door is suspended on a guide roller provided on the support, and the door is freely movable in the longitudinal direction, the door is located below the door. A push-up member is provided, the door body push-up member is placed on a support roller, and the protruding end moves upward when the door body push-up member moves to the passage side, and the door body and the door body push-up member are engaged. Then, the door body push-up member is moved with the movement of the door body, and the door body push-up member is pressed against the door body in the closing operation of the door body.

When the door body is positioned in the passage, a downward bending moment is generated in the door body, but the protruding end of the door body push-up member interlocking with the movement of the door body exerts an upward pushing force on the door body. Therefore, the downward force and the upward force are canceled, the door body moves horizontally, and the drop of the door body can be prevented.

In practicing the present invention, a pressing roller is provided above the door pushing-up member, the door pushing-up member is sandwiched between the supporting roller and the pressing roller, and the movement of the door pushing-up member is made smooth. Can be smoothly opened and closed.

In practicing the present invention, the vertical position of either the supporting roller or the pressing roller can be adjusted, and the pushing force of the door pushing member against the door can be adjusted. The pushing force on the door body can be adjusted, and the pushing force suitable for the size of the door body can be given.

In the embodiment of the present invention, as shown in FIG. 7, by using a curved door push-up member having both ends raised, the space in the height direction for mounting the door push-up member can be reduced. In this case, by using a door pushing-up member having a straight central portion, the pushing force of the door by the door pushing-up member is limited in a moving range where the dripping of the door does not occur. Can be smoothly moved, and a push-up force can be generated on the door in a movement range in which drooping of the door occurs in earnest.

In addition, both ends of the door push-up member are pressed against both side positions of the door to prevent the moving end of the door from drooping not only when the door is closed but also when the door is opened. be able to.

In the embodiment of the present invention, the non-rail sliding door which is easy to manufacture and construct can be provided by forming the door body pushing-up member into a straight shape which is inclined so that the passage side becomes higher.

[0014]

FIG. 1 shows a first embodiment of the present invention. A support 2 is fixed to a road surface and guide rollers A (A1, A2, A3) for guiding a door 1 to the support 2. , A4) are provided to enable the door body 1 to move in the longitudinal direction. Below the door 1, a steel door push-up member 3 having an I-shaped cross section is disposed, and the door push-up member 3 is supported by support rollers B (B1, B2) provided on the support 2.
And holding rollers C (C1, C2), and are movable along the door body 1.

As shown in FIG. 7A, the door push-up member 3 is formed in an arc shape having a constant curvature.
It is attached to the support 2 with both ends above the center. At both ends of the door body push-up member 3, push-up rollers D (D1, D2) are provided.
The top of D2 is pressed against the lower surface of the door body 1 to apply an upward force to the door body 1 and to make the relative movement between the door body 1 and the door body push-up member 3 smooth. Since the door body push-up member 3 is raised at both ends, the push-up rollers D <b> 1 and D <b> 2 generate an upward push-up force on the door body 1.

At the lower portion on both sides of the door 1, there are provided engaging pieces 4 which are engaging members which engage with the ends of the door pushing-up member 3 when the door 1 moves. The member 3 is moved with the movement of the door 1. Stoppers 5 are provided at lower portions on both sides of the door body push-up member 3, and the stopper 5 is brought into contact with the support roller B to regulate a movement range of the door body push-up member 3 and a movement range of the door body 1. Is also regulated.

The supporting rollers B1, B2 and the pressing roller C1,
In the no-load state, the moving end of the door body push-up member 3 sandwiched by C2 moves upward with the movement from the support body 2 to the passage side, and the height thereof as shown by the two-dot chain line in FIG. Displaced upward by Z. On the other hand, as the door 1 moves in the longitudinal direction, the bending moment about the support 2 gradually increases, and the moving end of the door 1 descends. In a state where the door 1 is pressed against the lower surface, the moving end of the door pushing-up member 3 is displaced upward, so that the downward force and the upward pushing force are balanced, and the door 1 is moved in a horizontal state. Can be.

The upward force acting on the door 1 at the portions of the push-up rollers D1 and D2 of the door push-up member 3 is such that when the door push-up member 3 moves most from the support 2, the door push-up member 3 Since the moving end is displaced upward, when the door 1 protrudes most from the support 2 where the droop of the door 1 becomes maximum, a maximum push-up force is generated and the droop of the door 1 can be effectively prevented. Things. In addition, the door push-up member 3 can apply a push-up force to the door 1 when the door 1 is moved in any direction about the support 2.

FIGS. 3 to 5 show a second embodiment of the present invention.
The pressing rollers C1 and C2 are fitted into the grooves 31 of the door push-up member 3 having an I-shaped cross section, and the lower edge of the door push-up member 3 is held between the press rollers C1 and C2 and the support rollers B1 and B2. . According to the second embodiment, the pressing roller C
Since 1, C2 can be arranged within the height of the door body push-up member 3, the door body 1 can be arranged low, and the mounting position in the longitudinal direction of the door body push-up member 3 can be given a degree of freedom.

FIGS. 4 and 5 are enlarged views of mounting portions of the guide roller A3, the supporting roller B1, and the pressing roller C1 of the second embodiment, and show a pair of vertical plate portions provided inside the support 2. A guide roller A3, a support roller B1, and a pressing roller C1 are mounted on a support bracket 21 having 22, 22 and a horizontal plate portion 23. The bearing 81 of the guide roller A3 is fixed on the horizontal plate 23 of the support bracket 21, and the bearing 82 of the pressing roller C1 is fixed to the vertical plate 22.
It is bolted to.

The bearing portion 83 of the support roller B1 is fastened to the vertical plate portion 22 of the support bracket 21 by bolts 84, 85. The bolt 85 and the support shaft 86 are connected to the vertical plate portion 22.
The bearing 83 is rotatable about a bolt 84, and the vertical position of the support roller B1 is adjustable. The vertical position of the support roller B1 is adjusted by rotating the bolt 9 screwed to the female screw fixed to the vertical plate portion 22 and moving it up and down so that the bearing portion 83 against which the tip of the screw portion of the bolt 9 is pressed is pressed. By rotating around the bolt 84, the vertical position of the support rollers B1, B2 is adjusted. After the vertical position adjustment is completed, the bolts 84 and 85 are tightened to
3 is fastened to the vertical plate portion 22. The guide roller A
4. The support roller B2 and the pressing roller C2 are also provided using the same structure as described above.

As described above, the vertical position of the support rollers B1 and B2 can be adjusted so that the door push-up member 3 can be adjusted.
Can be adjusted. That is, the door body push-up member 3 receives a downward load from the door body 1 and generates a bending moment in the same direction as the door body 1 with the support rollers B1 and B2 as fulcrums.
2 acts as a force to push down 2 downward. Support roller B
The pressing force acting on B1 and B2 is reduced by supporting rollers B1 and B2.
Can be changed by adjusting the vertical position of the door. The greater the downward force applied to the support rollers B1 and B2, the greater the force that pushes up the door body 1.

In this embodiment, the supporting rollers B1, B
2 can be adjusted vertically, but the holding rollers C1, C
2 can be adjusted to change the pushing force of the door pushing-up member 3, and if necessary, only one of the supporting rollers B1, B2 or only one of the pressing rollers C1, C2. It is also possible to adjust the vertical position. In FIG. 5, reference numeral 11 denotes a cover member provided at a lower portion of the door body 1. The cover member 11 hides the guide rollers A3 and A4, the pressing roller C, and the door body push-up member 3 to enhance the appearance.

FIG. 6 shows a third embodiment, in which the pressing roller C of the door body lifting member 3 and the guide rollers A3, A
4 is omitted, and the door 1 and the door pushing-up member 3 are sandwiched between the guide rollers A1, A2 and the support rollers B1, B2. The guide rollers A3 and A4 for restricting the downward movement of the door 1 make the door 1 push the member 3 up.
Guide rollers A1, A2 located above door body 1
It is not necessary to provide this as long as it is pushed upward, and since both ends of the door body push-up member 3 are in pressure contact with the lower surface of the door body 1, the upward movement of the door body push-up member 3 does not occur. It does not occur and does not need to be provided. In such a non-rail sliding door, the number of parts can be significantly reduced, and it can be manufactured at low cost.

The curved door push-up member 3 shown in FIG.
FIG. 7B shows a specific description of each form of FIG.
Has a straight portion L in the center, arc portions formed at both ends, and both ends are raised upward. According to the door pushing-up member 3 shown in FIG.
In the range in which both ends of the door body pushing-up member 3 do not move upward in the range where the two pass over the support rollers B1 and B2, the arc portions at both ends move in the range where they pass over the support rollers B1 and B2. Since the end is displaced upward, the door 1
Can be controlled when the pushing force is generated. That is, the push-up force of the door push-up member 3 is limited in a range in which the door 1 protrudes from the support 2 where the door 1 does not droop much.

In the door push-up member 3 having a constant curvature as a whole as shown in FIG. 7A, the moving end is gradually displaced upward with the movement of the door push-up member 3, so that
In the range where the amount of protrusion of the door 1 from the support 2 where the hanging of the door 1 does not occur is small, the force of pushing the door 1 upward by the door pushing-up member 3 is superior, and the door 1 is guided by the door guide rollers A1, The operability of the door body 1 may be rather deteriorated by strongly pressing the door body 1 against A2. Therefore, if a linear portion is formed at the center of the door body push-up member 3, the pushing force of the door body push-up member 3 can be limited in a range where the droop does not occur so much, and the operability of the door body 1 is improved. In addition to those having both ends machined in an arc shape as shown in FIG.

The door push-up member 3 shown in FIG.
Has only a central portion processed into an arc shape, and is easier to mold than a device that has a uniform curvature throughout.
This contributes to cost reduction. It should be noted that in addition to forming the arc portion at the center shown in FIG. 7C, the center can be simply bent.

FIGS. 8 and 9 show a fourth embodiment, in which a linear door pushing-up member 3 having an I-shaped cross section is shown.
Is used. The door body push-up member 3 is supported by the support rollers B1, B2 and the holding rollers C1, C2, which are arranged so as to be shifted from each other in the vertical direction toward the passage side. Only the upper end is pressed against the lower surface of the door 1.

According to the fourth embodiment, when the door 1 is closed, a push-up force is applied to the door 1, and when the door 1 is left open, the push-up force on the door 1 acts. It does not. The problem with the hanging of the door body 1 is that the contact with the door stop pillar is not at the proper position during the closing operation, and the door cannot be locked properly. It is sufficient to use a door push-up member 3 that acts only on the movement of the door 1 in the closing direction.

In the fourth embodiment, a door wheel 6 is provided on one side of the door body 1 in order to prevent the door body push-up member 3 from acting, that is, to prevent the door body 1 from hanging in an opened state. A guide rail 7 is provided on the side where 6 is provided,
Running the door roller 6 on the guide rail 7 prevents the door 1 from drooping in the open state.

In the embodiment of the present invention, the steel door push-up member 3 having an I-shaped cross section is used. However, if the door push-up member 3 can be elastically deformed and exerts a push-up force on the door 1, the material, Various shapes can be used.

[0032]

According to the non-rail sliding door of the present invention, it is possible to prevent the door from hanging down when the door is moved to the passage side, so that this kind of sliding door can be made longer and the door can be made longer. The load is not concentrated on the guide roller, and the door body can be smoothly opened and closed for a long period of time.

[Brief description of the drawings]

FIG. 1 is an elevation view showing a first embodiment of a non-rail sliding door of the present invention.

FIG. 2 is a schematic diagram showing an operation state of a door pushing-up member of the present invention.

FIG. 3 is an elevation view showing a second embodiment of the non-rail sliding door of the present invention.

FIG. 4 is an enlarged view of a main part of a second embodiment of the non-rail sliding door of the present invention.

FIG. 5 is an enlarged longitudinal sectional view of a main part of a second embodiment of the non-rail sliding door of the present invention.

FIG. 6 is an elevation view showing a third embodiment of the non-rail sliding door of the present invention.

FIG. 7 is an explanatory view showing a modified example of the door pushing-up member of the present invention.

FIG. 8 is an elevation view showing a fourth embodiment of the non-rail sliding door of the present invention.

FIG. 9 is a side view showing a fourth embodiment of the non-rail sliding door of the present invention.

FIG. 10 is an elevation view showing a conventional non-rail sliding door.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door body 2 Support body 3 Door body push-up member 4 Engagement piece A Guide roller B Support roller C Holding roller

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroyuki Majima Examiner, 5-4 Nissay Industry Co., Ltd., Kitajima-cho, Itano-gun, Tokushima Prefecture Izumi Kurano (58) Investigated fields (Int.Cl. ⁷ , (DB name) E06B 11/02 E05D 15/06 101

Claims (5)

(57) [Claims] 1. A non-rail sliding door in which a support is provided outside a passage, and a horizontally long door is suspended on a guide roller provided on the support, and the door is movable in a longitudinal direction. The door body push-up member is provided, the door body push-up member is mounted on a support roller, and the protruding end thereof moves upward in a state where the door body push-up member is moved to the passage side,
A non-rail wherein the door body and the door body lifting member are engaged to move the door body lifting member with the movement of the door body, and the door body lifting member is pressed against the door body in the closing operation of the door body. sliding door. 2. The non-rail sliding door according to claim 1, wherein a holding roller is provided above the door body lifting member, and the door body lifting member is sandwiched between the supporting roller and the holding roller. 3. The method according to claim 1, wherein the vertical position of one of the support roller and the press roller is adjustable, and the pushing force of the door pushing member against the door is adjustable. Non-rail sliding door. 4. The non-rail sliding door according to claim 1, wherein the door body push-up member has a curved shape in which both ends are raised. 5. The door body push-up member has a linear shape that is inclined so that the passage side is higher.
4. The non-rail sliding door according to any one of items 1 to 3.