JPH0447009A - Movable journal - Google Patents

Abstract

PURPOSE:To obtain a movable journal capable of being turned in all directions by movably supporting an upper boot on a lower boot via an intermediate boot, and by making the intermediate boot and the lower boot turnable to each other by means of a spherical connection, and also by making the upper surface of the intermediate boot and the side surface thereof movable in a plane direction by sliding motion. CONSTITUTION:A spherical crown 3a of an approximately spherical convex shape is formed on the central upper surface of a lower boot 3, and a hollow 2a of a spherical concave shape to be fitted to the above crown is formed on the undersurface of an intermediate boot 2, and the spherical crown 3a is fitted in the hollow 2a. And the upper surface 2b and the side surface 2c of the intermediate boot 2 are formed in a plane shape, and a groove 1a for fitting the intermediate boot 2 is formed on the undersurface of an upper boot 1, and therein the intermediate boot 2 is fitted. Further, on the inner side surface 1b of the groove 1a, and on the upper surface 2b and the side surface 2c of the intermediate boot 2, a sliding surface 8 consisting of a sliding material is formed, and the upper boot 1 is made slidable in a plane direction. On the side surface at the lower peripheral part of the upper boot 1, a lift-up preventing stop plate 4 being engaged with the peripheral part of the intermediate boot 2 is fitted. Thus, a movable journal capable of being moved in all directions and in the bridge-axial directions can be formed.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a movable bearing that is rotatable in all directions and has a movable function in the bridge axis direction, which is used for road bridges, railway bridges, etc. It is something.

[Conventional technology]

Movable bearings are installed and used on the piers of bridges such as road bridges and railway bridges. As shown in FIG. 5, the bridge 5 is provided with vertical supports 6 at both ends in the direction perpendicular to the bridge axis, and a horizontal support 7 at the center of the bridge axis. 9 is a car.

[Problem to be solved by the invention]

However, the width and location of the pier 5 where the bearings are installed are limited, and depending on the type of pier, it may not be possible to install both the bearings 6 and 7 separately.

Therefore, this invention was made to solve the above-mentioned problems, and provides a movable support that has both horizontal and vertical support functions, is rotatable in all directions, and also has a movable function in the bridge axis direction. The purpose is to

[Means to solve the problem]

In order to achieve the above object, the present invention includes a lower shoe in which a substantially spherical convex spherical crown is formed on the upper surface, and a substantially spherical concave groove that can be freely fitted with the spherical crown in the lower surface, The groove is fitted into the spherical crown and has a sliding surface on the upper and side surfaces, and a groove that fits with the groove is formed on the lower surface, and the groove is fitted into the groove and the lower surface is inserted through the groove. The shoe is characterized by comprising an upper shoe movably supported on the shoe, and a stop plate attached to the lower end of the upper shoe that engages with the lower end of the declaration and prevents the upper shoe from floating up. It is something.

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a partially sectional side view showing one embodiment of the present invention;
FIG. 2 is a partially sectional front view. As shown in the drawings, the movable support of the present invention is composed of an upper shoe 1, a suspension 2, a lower shoe 3, and a stop plate 4. A substantially spherical convex spherical crown 3a is formed on the upper surface of the center part of the lower shoe 3, and a substantially spherical concave groove 2& is formed on the lower surface of the shoe 2, which can be freely fitted with the spherical crown 3a.
The spherical crown 3a is fitted into the groove 2&. Top side 2b of declaration 2
The side surface 2C is formed in a planar shape, and a groove 1a is formed on the lower surface of the upper shoe 1 for fitting the diaphragm 2, and the diaphragm 2 is fitted into the groove 1a. 3 is a partial enlarged view of section A in FIG. 1, and FIG. 4 is a partial enlarged view of section B. A sliding surface 8 made of a sliding material is formed on the inner surface 1b of the groove 11, the upper surface 2b of the guide 2, and the side surface 2C, and the upper shoe 1 has the inner surface 1b of the groove 1& and the side surface 2C of the guide 2 shown in FIG. It is slidable in the plane direction (horizontal direction) within the width of the interval provided between the two. The groove 2 & of the shoe 2 is fitted up to the lower half of the ball crown 31, and the shoe 2 will not come off the lower shoe 3 due to this. In addition, a stop plate 4 is attached to the side surface of the lower end of the periphery of the upper shoe 1 to prevent it from lifting when it engages with the periphery of the shoe 2. Since it is engaged, lifting is prevented and it corresponds to upward lifting force.

In this way, the upper shoe 1 is movably supported on the lower shoe 3 via the shoe 2, and is movable in the rotational direction through rotation by the roughly spherical uneven surfaces of the shoe 2 and the lower shoe 1, and It is also movable in the plane direction by sliding on the top surface 2b and side surface 2C of the declaration 2.

〔Effect of the invention〕

As explained above, according to the present invention, the problem of pier space is solved, and a movable support that is rotatable in all directions and has a movable function also in the axial direction of the bridge can be obtained, which is an industrially useful effect.

[Brief explanation of drawings]

FIG. 1 is a partially sectional side view showing one embodiment of the present invention;
Fig. 2 is a partially sectional front view, Fig. 3 is a partially enlarged view of part A in Fig. 1, Fig. 4 is a partially enlarged view of part B, and Fig. 5 is a front view showing the conventional bearing in use. It is. In the drawings, 1- Upper shoe 1 a- Groove b ~ inner surface 2- Middle shoe 22 breather- Groove 2b--m- Upper surface 2C- Side surface 3- Lower shoe
3 a - Ball crown 4 - Stop plate 5 - Bridge 6 - Vertical support 7 - Horizontal support 8 - Sliding surface 9 - Automobile. Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1. A lower shoe having a substantially spherical convex spherical crown formed on the upper surface;
an inner shoe having a substantially spherical concave groove on its lower surface that can be freely fitted with the spherical crown, the groove being fitted on the spherical crown, and having sliding surfaces on the upper and side surfaces; an upper shoe that is movably supported on the lower shoe via the middle shoe that is fitted into the groove; and a lower end of the middle shoe that is attached to the lower end of the upper shoe. A movable support comprising a stop plate that engages with the upper shoe and prevents the upper shoe from rising.