JP4039545B2 - Connecting bracket - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connecting fitting for connecting the pullers of a connecting body, for example, when a hydraulic damper or the like is interposed between a support and a vibration control target.
[0002]
[Prior art]
Conventionally, connecting fittings that pivot together with a pair of pullers that are opposed to each other with a distance protruding in parallel from the front end surface of one of the connected bodies are respectively provided. It has a parallel pin that penetrates the puller.
[0003]
[Problems to be solved by the invention]
In the above-mentioned conventional connecting bracket, since a slight clearance necessary for assembly is provided between each puller and the parallel pin, play occurs in the axial direction of the hydraulic damper, and the hydraulic damper generates a damping force against slight vibration. Without being able to attenuate vibrations caused by wind and the like.
Therefore, the present invention does not easily cause backlash even if there is a movable part in the connecting body, such as a hydraulic damper, and can be reliably connected, and the hydraulic damper can be used against micro-vibration caused by wind or the like. It is an object of the present invention to provide a connection fitting that effectively generates a damping force.
[0004]
[Means for Solving the Problems]
In order to solve the above-described problem, in the first invention, the pulling hand S1 of the other connecting body S is arranged between a pair of pulling hands D1 and D1 facing each other with an interval between the one connecting body D. In the joint fitting pivotally supported integrally, the pivot 1 that penetrates the pulls D1 and S1 of the two linkages, and the flange 2 that prevents both ends of the pivot 1 from being removed from the outer pulls D1 and D1, respectively. The pivot 1 is composed of a pin 3 having a tapered surface 3a on the outer periphery and a sleeve having a tapered surface 4a corresponding to the inner periphery and having a split 5b into which the pin 3 is inserted, and at least one of the flange 2 and the pivot A spring washer 6 was interposed between the spring 1 and 1.
In the second invention, the bearing 7 through which the pivot 1 that passes through the pulling hands D1 and S1 of both the connecting bodies and is prevented from coming off is rotatably fixed to the inner pulling hand S1 by welding.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a connection fitting according to the present invention, FIG. 2 is a plan view, FIG. 3 is a longitudinal sectional view, FIG. 4 is an exploded sectional view, and FIG.
As shown in FIGS. 1 and 2, the connecting metal fitting in the present embodiment is used for connecting the hydraulic damper D and the support S. In this connecting metal fitting, the pivot 1 penetrates the puller S1 on the support S side and the two pullers D1 and D1 on the hydraulic damper D side, and is fixed by the flange 2.
[0006]
As shown in FIGS. 3 to 5, the pivot 1 includes a pin 3 and a split sleeve 4. The pin 3 has a substantially frustum shape having a tapered surface 3a that is tapered from one end to the other end on the outer peripheral side surface. The sleeve 4 has a cylindrical shape for fitting to the pin 3, and has a corresponding tapered surface 4a on the inner surface thereof. The sleeve 4 has an axial split 4b for elastically expanding the diameter.
[0007]
The flange 2 receives both ends of the pivot 1 and is fixed to the outer pullers D1 and D1. As shown in FIG. 1, the flange 2 has a disk shape and is screwed to the puller D <b> 1 with four bolts 5. As shown in FIGS. 3 and 4, the flange 2 has a circular recessed receiving portion 2 a at the center of the inside thereof so as to receive the end portion of the pivot 1. The receiving portion 2a is formed slightly larger than the diameter of the pivot 1 and has play. The receiving portion 2a has a washer holding portion 2b at the inner central portion thereof, and a spring washer 6 having a large reaction force like a disc spring is accommodated therein. The spring washer 6 abuts on the tip surface of the pivot 1 while being accommodated in the recess 2a.
[0008]
A spherical bearing 7 is fixed to the handle S1 on the support S side. The spherical bearing 7 is configured such that a spherical ring 7a fitted around the pivot 1 can swing within a certain range within a casing 7b fixed to the puller S1. The casing 7b has both axial ends fixed to the support ring 7c. The support ring 7c is welded at its periphery to the puller S1.
[0009]
In this connection fitting, a pin 3 is inserted into a sleeve 4 to form a pivot 1. When the pin 3 is inserted into the sleeve 4, the split 4 b is expanded and the diameter is elastically expanded to hold the pin 3. The pivot 1 is passed through the pullers S1 and D1, and then the flange 2 is screwed to the puller D1 with four bolts 5 to prevent the pivot 1 from coming off. At this time, since the spring washer 6 is located in the recess 2b of the flange 2, the pivot 1 is elastically fixed. Therefore, even if the movable part of the hydraulic damper moves and a force is applied to the pivot 1 in a direction perpendicular to the axis thereof, the pin 3 is pushed into the sleeve 4 by the reaction force of the spring washer 6, and the diameter of the sleeve 4 is increased. Therefore, there is no play in the pivot 1.
In addition, since the spherical bearing 7 is fixed to the puller S1 by welding, thermal stress is generated in the puller S1 during welding, and a contraction force acts during cooling so that the clearance between the spherical bearing 7 and the puller S1 is increased. This eliminates the backlash of the pivot 1 with respect to the puller S1.
[0010]
【The invention's effect】
As described above, since the spring washer 6 is interposed between the pivot 1 and the flange 2 in the present invention, the pivot 1 can be securely fixed, and even when applied to a movable part such as a hydraulic damper, No backlash occurs, and it can withstand long-term use, and can effectively generate a damping force against fine vibrations caused by wind and the like.
Further, since the bearing 7 of the pivot 1 is fixed to the pull handle S1 by welding, there is an effect that the play of the pivot 1 with respect to the pull handle S1 can be prevented.
[Brief description of the drawings]
FIG. 1 is a front view of a mounting state of a connecting metal fitting according to the present invention.
FIG. 2 is a plan view of a connection fitting attached state.
FIG. 3 is a longitudinal sectional view of a connection fitting.
FIG. 4 is an exploded cross-sectional view of a connection fitting.
FIG. 5 is a central sectional view of a pivot axis.
[Explanation of symbols]
1 pivot 2 flange 2a receiving portion 2b washer holding portion 3 pin 3a taper surface 4 sleeve 4a taper surface 4b split 5 bolt 6 spring washer S support S1 puller D hydraulic damper D1 puller

Claims (2)

In a connecting bracket that pivots integrally with a pair of pullers facing each other with a distance between one connected body, with the other handle being placed between the pullers,
A pivot that penetrates the pulls of both connectors, and flanges that prevent the ends of the pivots from coming off from the outer pulls, respectively.
The pivot is composed of a pin having a tapered surface on the outer periphery, and a cutting sleeve having a tapered surface corresponding to the inner periphery into which the pin is inserted,
A coupling metal fitting, wherein a spring washer is interposed between at least one of the flanges and the pivot. The coupling fitting according to claim 1, wherein a bearing through which the pivot pivots is fixed to a puller of the other coupling body by welding .

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