JP4001894B2 - Connector - Google Patents

Description

  The present invention relates to a connector for connecting two members.

  As shown in FIG. 8, the bridge 50 is configured by bridging a girder 16 between supports 18 installed on the pier 20 and placing a slab (not shown) or the like on the girder 16.

  By the way, the girders 16 are bridged with a predetermined gap so that the girders do not collide with each other due to a temperature change or the like.

  For this reason, the beams 16 are connected to each other by a connecting device 52 such as a chain or an eye plate so that the beam 16 does not fall due to the shaking of the pier 20 at the time of the earthquake.

  However, the connecting device 52 is merely a structure that allows a relative movement of the beam 16 with a clearance, and does not have a buffer function. For this reason, the collision between the girders 16 cannot be avoided, and when the girders 16 behave greatly, the chains and the like are extended, and a shocking load acts on the girders 16 and the connecting device 52.

  In order to eliminate such inconvenience, as shown in FIG. 9, a connecting device 58 in which a linearly arranged chain 54 is embedded in a cylindrical rubber 56 has also been proposed. The connecting device 58 exhibits a buffer function, but the installation space is limited. Further, the buffer function can be exhibited only by the elastic force that the rubber 56 originally has.

  An object of the present invention is to provide a connector that can be mounted even in a narrow space and that can exhibit a buffering function against a large displacement and a small displacement of a connection object to be connected.

In the connector according to claim 1, a curved connection member constituted by a chain is embedded in the curved elastic body. Rings at both ends constituting the chain from both ends of the elastic body are exposed approximately half and are raised in the same direction, and are connected to the objects to be connected, and the connecting tool connects the objects to be connected.

  Here, for example, a case where the elastic body is U-shaped will be described.

When the objects to be connected are separated from each other, a compression force acts on the outer side of the elastic body and a tensile force acts on the inner side through a connecting member formed of a chain, and the connection object depends on the elastic force and shape characteristics of the elastic body The buffer function that tries to pull back the object is exhibited.

  Further, when the objects to be connected approach each other, a tensile force acts on the outer side of the elastic body and a compressive force acts on the inner side of the elastic body through the connecting member, and the objects to be connected are separated by the elastic force and shape characteristics of the elastic body. The intended buffer function is demonstrated.

As described above, by raises parallel to the same direction both end portions of the ring from both ends of the elastic body constituting the chain, as well as attempts to leave connecting object each other and connecting the object tries to approach each other However, when the chain constituting the connecting member is about to fall down, the elastic body can be deformed via the chain to exhibit a buffer function.

  Furthermore, since the elastic body is curved, the installation space is not limited as compared with the conventional linear coupler.

Further , the connecting member is constituted by a chain, and the rings at both ends constituting the chain are exposed approximately half from the elastic body and are erected in parallel in the same direction . Compared with the case where the connecting member is configured to be able to follow the movement of the connecting object by pin-connecting the plates, it is easy to embed along the shape of the elastic body, and the tensile strength is large.

In the connector according to claim 2 , a gap is formed in the connecting portion of the ring to be linked, and an elastic body is interposed in the gap.

  That is, when the chain is pulled or compressed by the behavior of the object to be connected, the elastic body interposed between the adjacent rings is repelled by receiving the compressive force or the tensile force, and the internal buffer function in the elastic body. Is demonstrated.

  Therefore, a larger buffer function can be exhibited as compared with the case where a chain is embedded in the elastic body without leaving a gap in the connecting portion of the ring.

In the connector according to claim 3 , the buffering function can be exhibited by the odd number of rings.
In the connector according to the fourth aspect of the present invention, since the number of rings is five, a buffer function can be exhibited.
In the connector according to claim 5, the ring at both ends is arranged so that the surfaces closing the holes constituting the pair of rings exposed from both ends of the elastic body are located on the same plane. Space can be used effectively.

  Since this invention set it as the said structure, it can attach even in a narrow space and can exhibit a buffer function also with respect to the big displacement of a connection target object to connect, and a small displacement.

  As shown in FIGS. 1 and 2, the connector 10 according to the present embodiment includes a rubber body 12 having a circular cross section and curved in a substantially V shape in a side view.

  In the rubber body 12, a chain 14 formed by crossing and linking five rings is embedded along the shape of the rubber body 12.

  The intermediate first ring 14 </ b> A is located on the straight portion 12 </ b> A of the rubber body 12. The second ring 14B located at the inclined portion 12B of the rubber body 12 is linked to the first ring 14A with an angle θ.

  A gap a is provided at the intersection of the first ring 14A and the second ring 14B, and a gap b is formed between the ends of the second ring 14B.

  Furthermore, the third ring 14 </ b> C is linked to the second ring 14 </ b> B in a state where it is substantially half exposed from the rubber body 12. The third ring 14 </ b> C is raised from the rubber body 12 in parallel with each other, and is connected to a bracket 22 projecting from the side surface of the beam 16 with a pin 24 as shown in FIG. 3.

  For convenience of explanation, the expression “gap” is used, but these gaps are naturally filled with rubber and integrated with the rubber body 12. Here, by embedding a reinforcing layer (for example, a fiber layer) in the rubber body of the gap, or by changing the material such as making the rubber body of the gap different from the elastic modulus of other rubber bodies, The buffer function can be increased or decreased. Moreover, the cross-sectional shape of the rubber body 12 is not limited to a circle, and may be an ellipse or a polygon.

  Next, the operation of the connector 10 according to this embodiment will be described.

  When the bridge pier 20 swings and a force in the direction of arrow A acts on the connector 10 during the earthquake, the third rings 14C try to separate from each other. For this reason, the angle θ of the rubber body 12 is reduced, a bending resistance force is generated, and a buffer function for pulling back the girder 16 by the elastic force and shape characteristics of the rubber body 12 works. At this time, since the rubber in the gap b is pulled and the rubber in the gap a is compressed, the rubber filled between the first ring 14A, the second ring 14B, and the third ring 14C also has a buffer function. Demonstrated.

  Further, even when the girder 16 has a large behavior, a large shock absorbing function is exerted by bending resistance and a large elastic force between the rings in the process of the rubber body 12 becoming a linear shape. Don't give.

  Further, since the connector 10 is curved, a limited space can be used effectively as shown in FIG. Moreover, since it does not get pinched between the girders 16 when they collide, there is no fear of damage.

  On the other hand, when the beam 16 approaches and a force in the direction opposite to the arrow A acts on the first connector 10, the third rings 14C try to approach each other. For this reason, the angle θ of the rubber body 12 is increased, a bending resistance force is generated, and a buffer function for separating the beam 16 by the elastic force and shape characteristics of the rubber body 12 works. At this time, since the rubber in the gap b is compressed and the rubber in the gap a is pulled, the cushioning function is also exerted by the rubber filled between the first ring 14A, the second ring 14B, and the third ring 14C. Is done.

  The magnitude of the load and the amount of displacement that can be supported by the coupler can be easily changed depending on the material of the rubber, the outer diameter of the rubber body, the shape of the rubber body, the length of the chain, and the like.

  For example, like the connector 26 shown in FIG. 4, a chain 30 composed of seven rings can be embedded in a substantially U-shaped rubber body 28 so that a large amount of displacement can be accommodated. As shown in FIGS. 5 and 6, when the distance between the beams is narrow, a chain 40 composed of three rings may be embedded in the block-like rubber bodies 36 and 38 having a small degree of curvature. .

  Further, in this embodiment, a gap is formed in the connecting part of the chain ring and the rubber is filled. However, a gap is provided in the connecting part of the ring constituting the chain 44 as in the connecting tool 42 shown in FIG. Even if it is embedded in the rubber body 12, the buffer function can be exhibited.

It is a perspective view which shows the coupling tool which concerns on this form. (A) is a side view which shows the coupling tool which concerns on this form, (B) is a top view which shows the coupling tool which concerns on this form. (A) is a side view which shows the state which connected the girder with the connection tool which concerns on this form, (B) is a top view which shows the state which connected the girder with the connection tool which concerns on this form. (A) is a side view which shows the coupling tool which concerns on a modification, (B) is a top view which shows the coupling tool which concerns on a modification. It is a side view which shows the coupling tool which concerns on a modification. It is a side view which shows the coupling tool which concerns on a modification. It is a side view which shows the coupling tool which concerns on a modification. It is a side view which shows the state which connected the girder with the conventional connector. It is the side view which showed the conventional connector.

Explanation of symbols

12 Rubber body (elastic body)
14 chain (connection member)
28 Rubber body (elastic body)
30 chains (connection member)
36 Rubber body (elastic body)
38 Rubber body (elastic body)
40 chains (connection member)

Claims (5)

A curved elastic body;
It is embedded in the elastic body in a curved state and is composed of a chain, and the rings at both ends constituting the chain are substantially half exposed from the elastic body and are raised in parallel in the same direction, A connecting member for connecting the ring to the connection object;
A connector characterized by comprising: The coupler of claim 1, gap at the junction of the ring constituting the strand is formed, the elastic body into the gap, characterized in that the interposed. The coupling device according to claim 1, wherein the number of the rings is an odd number. The connecting device according to claim 3, wherein the number of the rings is five. 5. The ring according to claim 1, wherein the rings at both ends are arranged so that the surfaces closing the holes constituting the pair of rings exposed from both ends of the elastic body are positioned on the same plane. The described coupler.

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