JP3504815B2 - Support shaft for swiveling openable roof - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support shaft for a swing-type open / close roof. Specifically, it supports large loads in the horizontal and vertical directions while absorbing deformation such as thermal expansion of the support shaft supporting the revolving open / close roof of the stadium and dome where baseball and other events can be held, especially the open / close roof panel and its frame. The present invention relates to a support shaft of a swingable open / close roof that can be supported.

[0002]

2. Description of the Related Art As shown in FIGS. 3 (a) and 3 (b), for example, an opening / closing roof 10 of a stadium 1 includes two left and right roofs each having a turning fulcrum at a back net position A through which a center line C of the stadium 1 passes. It is composed of moving section fan-shaped panels 11 and 12 and left and right outermost fixed panels 13, and each panel 1
1, 12 and 13 are supported by a roof frame F having a paragraph difference. Moving section fan-shaped panel 11,
The leading end of 12 is supported and driven by a moving carriage 15 that moves along an arcuate rail R installed on the building side 1 and a traction device such as a chain.

As shown in FIG. 4, the structure of the turning fulcrum is such that the vertical support shaft 121 is installed and fixed on a horizontal abutment 111 projecting from the building side on the roof of the building of the stadium 1 and diagonally. The upper portion of the vertical support shaft 121 is fixedly held by the protruding bracket 112. The vertical support shaft 121 is fitted with a sleeve 125 at a fulcrum fulcrum portion of the roof frame F that is pivotally opened and closed through a large gap, and is supported in contact with the intermediate portion through a radial spherical bearing 130. In the radial spherical bearing 130, the convex spherical ring 131 is fitted and mounted on the outer surface side of the vertical support shaft,
The concave spherical ring 132 is fitted and mounted on the inner surface side of the sleeve 125.

[0004]

In the vertical support shaft 121 of the conventional swing type open / close roof, the weight distribution of the panels 11, 12, 13 and the structure of the roof frame F is applied so that the movable carriage and the towing device at the tip end are greatly hung. Even with this structure, various external forces such as twisting, pushing and pulling, lifting, etc. due to thermal expansion and contraction due to temperature difference between day and night, and due to errors with the moving carriage at the tip and the traveling line of the traction device, etc. Be affected. Due to the flexibility and thrust bearing of the spherical bearing 130 provided on the vertical support shaft 121, most of the action of the above external force is absorbed and supported, but the bearing of its own weight is still insufficient. There is a risk of breakage, and when it is broken, replacement work becomes bulky, and there is a problem that size up is required.

The present invention has been proposed in view of the above, and has the capability of absorbing the deformation behavior of the roof frame with respect to the vertical support shaft while maintaining the bearing performance against a vertical load without increasing the size. The purpose of the invention is to provide a support shaft for a swivel open / close roof that is improved in durability.

[0006]

In order to achieve the above object, the supporting shaft of the swivel opening / closing roof according to claim 1 of the present invention is at least provided by a bracket projecting from the building side in the roof portion of the building. Is a vertical support shaft that is fixedly supported by the lower part and is inserted into the sleeve of the swing fulcrum part of the roof frame that swivels open and close with a gap, and the sleeve can be tilted via a radial spherical bearing in the middle part. In addition to supporting, the sleeve is tiltably supported around the vertical support shaft via a thrust spherical bearing on the bracket.

In the supporting shaft of the swing-type opening / closing roof of the present invention having the above-described structure, the swinging fulcrum of the roof frame that swivels and moves, and the deformation behavior of the roof frame that occurs during movement and after setting is performed on both the spherical surfaces in the middle and lower parts. It can be absorbed within the range of the gap with the sleeve through the bearing, and it is possible to avoid applying an excessive force. Also, by installing the thrust spherical bearing in the lower part, it is possible to improve the bearing performance against vertical load without increasing the size of the radial spherical bearing in the middle part, and at the same time make the whole compact structure and improve durability and maintainability. You can

According to a second aspect of the present invention, the radial spherical bearing comprises a convex spherical ring fitted to the outer surface of the vertical support shaft and a concave spherical ring fitted to the inner surface of the sleeve. When the bearing is composed of the convex spherical ring mounted on the lower surface of the sleeve and the concave spherical ring mounted on the upper surface of the bracket, a large thrust load can be supported by simple lubrication such as grease lubrication. .

When the vertical support shaft is detachably fixedly supported by the screw means between the lower bracket and the upper bracket projecting from the building side, a large horizontal load is exerted. The vertical bracket can be prevented from falling down by the support of the upper bracket even if it is damaged, and the function as a turning fulcrum can be maintained, and the maintenance work is facilitated by releasing the screw means.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A support shaft for a swing-type open / close roof according to a representative embodiment of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a vertical cross-sectional view showing the structure of a support shaft of a swivel opening / closing roof according to a representative embodiment, and FIGS. 2 (a) and 2 (b) are vertical cross-sections showing supportability against vertical load applied to the support shaft of the swivel opening / closing roof. Fig. 3 is a plan view and a vertical cross-sectional view showing supportability for horizontal load. Fig. 3 shows a slewing open / close roof of a stadium. Is.

1 to 3, a support shaft 2 of a swing type open / close roof of a typical embodiment according to the present invention is a swing type open / close roof 10 of a stadium 1 capable of holding baseball and other events.
Has been adopted by. First of all, the swivel roof 10 will be outlined with reference to FIG. Panel 13 and each panel 11, 12, 13
Are supported by a roof frame F having a paragraph difference from each other. The distal end portions of the movable sector fan-shaped panels 11 and 12 are supported and driven by a movable carriage 15 that moves along an arcuate rail R installed on the building side.

A supporting shaft 2 of a revolving openable roof which forms a revolving fulcrum.
Is composed of a vertical support shaft 20 having upper and lower screw parts 21 and 22 fixedly supported by nuts N to upper and lower brackets 31 and 32 horizontally projected from the building side in the roof part of the building 3, It is fitted into the sleeve 40 of the swinging fulcrum of the roof frame F that moves open and close via a gap G, and in the middle thereof, the sleeve 40 is tiltably supported via a radial spherical bearing 24, and on the lower bracket 32 is vertically supported. The sleeve 40 is tiltably supported around the support shaft via a thrust spherical bearing 27. The tilting caused by the deformation of the roof frame F is absorbed within the range of the gap G between the sleeve 40 and the spherical bearings 24 and 27 at the middle portion and the lower portion, and it is possible to prevent an unreasonable force from being applied to the shaft 20. is doing. By installing the thrust spherical bearing 27, the bearing capacity for vertical load can be enhanced without increasing the size of the radial spherical bearing 24 in the middle part, and at the same time, the entire structure is made compact and durability and maintainability are enhanced. .

The convex spherical ring 24A of the radial spherical bearing 24 at the middle portion is fitted to the outer surface side of the small outer diameter portion 20A of the vertical support shaft 20, and the thrust collar 25 is provided on the outer surface side of the small outer diameter portion 20A. The concave spherical ring 24B is fixed to the shoulder portion 20B of the vertical support shaft 20 by being pressed from above and fixed to the sleeve 40.
Is fitted to the inner surface side of the large inner diameter portion 40A of the
The thrust collar 26 on the inner surface of A is pressed from below onto the shoulder portion 40B of the sleeve 40 and fixed. The concave spherical ring 27A of the lower thrust spherical bearing 27 is fixed on the lower bracket 32, and the convex spherical ring 27B is fixed to the lower end portion of the sleeve 40. The spherical portion is provided with simple lubrication such as grease lubrication. Has been done.

In addition to the above-described embodiment, the vertical support shaft 20 can be configured by a large bolt, and the upper bracket 31 can be configured to pass through the hole from above and be screwed into the screw hole of the lower bracket 32. .

[0015]

As described above in detail with reference to the embodiments, the supporting shaft of the swing-type openable roof according to claim 1 of the present invention provides the swing fulcrum of the roof frame which swings. The deformation behavior of the roof frame that occurs during movement and after setting can be absorbed within the range of the clearance between the roof frame and both spherical bearings in the middle portion and the lower portion, and an unnecessary force can be avoided. Also, by installing the thrust spherical bearing in the lower part, it is possible to improve the bearing performance against vertical load without increasing the size of the radial spherical bearing in the middle part, and at the same time make the whole compact structure and improve durability and maintainability. be able to.

According to another aspect of the present invention, there is provided a support shaft for a swivel roof, wherein the radial spherical bearing has a convex spherical sleeve fitted to the outer surface of the vertical support shaft and a concave sleeve fitted to the inner surface of the sleeve. It consists of a spherical sleeve and the thrust spherical bearing is composed of a convex spherical ring mounted on the lower surface of the sleeve and a concave spherical ring mounted on the upper surface of the bracket. It can support thrust load.

According to the supporting shaft of the swivel-type open / close roof of claim 3, the vertical supporting shaft is detachably fixedly supported by the screw means between the lower bracket and the upper bracket projecting from the building side. Therefore, even if a large horizontal load is applied, the vertical support shaft can be prevented from collapsing by being supported by the upper bracket, and the function as a pivot fulcrum can be maintained, and the maintenance work is facilitated by releasing the screw means.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a structure of a support shaft of a swivel opening / closing roof according to a representative embodiment of the present invention.

FIG. 2 (a) is a vertical cross-sectional view showing the bearing ability with respect to a vertical load applied to a support shaft of the swivel roof, and FIG. 2 (b) is a vertical sectional view showing the bearing ability with respect to a horizontal load.

[Figure 3] Shows the swing-type open roof of the stadium,
(A) is the top view, (b) is an elevation view of the rotation support part of the frame.

FIG. 4 is a vertical cross-sectional view showing a structure of a support shaft of a conventional swivel opening / closing roof.

[Explanation of symbols]

1 stadium 2 Support shaft for swivel roof 3 buildings 10 openable roof 20 Vertical support shaft 20A small outer diameter part 21 screw means 24 radial spherical bearing 24A convex spherical ring 24B concave spherical ring 27 Thrust spherical bearing 27A concave spherical ring 27B convex spherical ring 31 Upper bracket 32 Lower bracket 40 sleeve 40A large inner diameter A turning fulcrum F roof frame G gap N screw means (nut)

Continuation of front page (56) Reference JP-A-49-108453 (JP, A) JP-A-62-242037 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) E04B 7 / 00-7/24 Practical file (PATOLIS) Patent file (PATOLIS)

Claims (3)

(57) [Claims] 1. A vertical support which is fixedly supported at least at a lower portion by a bracket projecting from the building side in a roof portion of the building and is fitted into a sleeve of a swing fulcrum portion of a roof frame which is swung open / closed with a gap. A shaft, the intermediate part of which supports the sleeve in a tiltable manner via a radial spherical bearing, and the tiltable support of the sleeve on the bracket around the vertical support axis via a thrust spherical bearing. Support shaft for swivel open / close roof. 2. The radial spherical bearing comprises a convex spherical ring fitted to the outer surface side of the vertical support shaft and a concave spherical ring fitted to the inner surface side of the sleeve, and the thrust spherical bearing is 2. The support shaft for a revolving roof according to claim 1, wherein the support shaft comprises a convex spherical ring mounted on the lower surface of the sleeve and a concave spherical ring mounted on the upper surface of the bracket. 3. The swivel roof according to claim 1, wherein the vertical support shaft is detachably fixedly supported by screw means between the lower bracket and an upper bracket projecting from the building side. Support shaft.