JP7777880B2 - Joint cover support device - Google Patents

Description

The present invention relates to a joint cover support device that supports a joint cover that closes the joint between the wall surfaces of left and right frames, which are installed through the joint.

A known example of a conventional wall joint device is a wall joint cover device comprising: "at least two or more telescopic link mechanisms, each having three central pivots at its center, both ends of which are pivotally supported on the exterior wall surfaces of the left and right buildings adjacent to the joint via the joint; U-shaped cover plates that are open to the left and right buildings and pivoted to the central pivots on both sides of the telescopic link mechanisms with pivot pins fixed to the center of the inner plate; end cover plates pivoted to the pivots on both ends of the telescopic link mechanisms, with their tips inserted into the interior and sliding to contact the outer plates of the cover plates; and a central cover plate, both ends of which are pivoted to the central pivots at the center of the telescopic link mechanisms and overlap with the outer plates of the cover plates, allowing for sliding movement" (Patent Document 1).

However, even if such wall joint devices are equipped with multiple expansion link mechanisms in the vertical direction to prevent deflection of the cover plate and mounting members, if the horizontal dimension of the joint is also large, an expansion link mechanism with multiple link parts has the disadvantage that the center portion of the mechanism will deflect and displace downward.

In addition, because each of the multiple pivot points flexes, even if multiple telescopic link mechanisms were installed in the vertical direction, it was difficult to prevent forward and backward flexing due to strong winds, etc.

Japanese Patent Application Laid-Open No. 2015-1111

In light of the above-mentioned drawbacks of the conventional technology, the present invention aims to provide a joint cover support device in which the central portion of the telescopic link mechanism, which has multiple link sections, does not easily sag or deform due to strong winds, etc., and can absorb shaking caused by earthquakes, etc.

The above and other objects and novel features of the present invention will become more fully apparent from the following description read in conjunction with the accompanying drawings.
However, the drawings are for illustrative purposes only and do not limit the technical scope of the present invention.

In order to achieve the above object, the joint cover support device according to claim 1 of the present invention comprises:
A joint cover support device used in a joint cover device that covers a joint between one body and another body, comprising: an expandable link mechanism having a plurality of central pivot portions for long mounting members that are provided at a required interval in the vertical direction at the joint and that do not displace in the vertical direction; and mounting members that are arranged at a predetermined interval in the horizontal direction, are pivoted to each of the central pivot portions, and can mount a plurality of joint covers; the expandable link mechanism is comprised of a first link mechanism and a second link mechanism that have one end attached to the one body and the other end attached to the other body; these first and second link mechanisms are formed to be approximately the same shape, and are positioned so that the first link mechanism and the second link mechanism overlap in the front-to-back direction in a substantially abutting state .
The telescopic link mechanism of the joint cover support device according to claim 2 is characterized in that it is formed so as to have a substantially hexagonal or substantially quadrangular shape as a whole when viewed from the front.

Here, "the first and second link mechanisms are positioned so that they overlap" refers to a position in which the first and second link mechanisms are in contact with each other, or a position in which there is a slight gap between the first and second link mechanisms.

As is clear from the above description, the present invention provides the following effects.
(1) In each invention described in claim 1, the vicinity of the center of the telescopic link mechanism having a plurality of link portions does not easily bend or deform due to strong winds, etc. In addition, since the second link mechanism is provided in the embodiment, the link mechanisms are arranged so as to overlap two or more times in the front-rear direction in a plan view, and the strength of the telescopic link mechanism can be significantly improved.
(2) The invention described in claim 2 also provides the same effect as (1) above, and because the entire telescopic link mechanism is formed to have a substantially hexagonal or substantially square shape when viewed from the front, it is possible to prevent the telescopic link mechanism from extending vertically if the joints become narrower due to an earthquake. Therefore, it is not necessary to widen the vertical spacing between the telescopic link mechanisms, and multiple telescopic link mechanisms can be installed.

1 to 7 are explanatory diagrams showing a first embodiment of the present invention.
8 and 9 are explanatory diagrams showing a second embodiment of the present invention.
FIG. 2 is a front view of the joint cover support device of the first embodiment. FIG. FIG. FIG. 5 is a cross-sectional view taken along line 5-5 in FIG. 4. An explanatory diagram of operation when the joint has narrowed due to an earthquake. An explanatory diagram of operation when the joint has widened due to an earthquake. FIG. 6 is a front view of a joint cover support device according to a second embodiment. FIG.

The present invention will be described in detail below using the embodiments for carrying out the invention shown in the drawings. Note that in this specification, directions are referred to as left-right, top (top of the drawing), and bottom (bottom of the drawing) directions based on Figure 4. Directions are referred to as front (bottom of the drawing) and rear (top of the drawing) directions based on Figure 5.

In addition, in this invention, a framework refers to a structure such as a building, road, slab, or elevator shaft on which a joint plate can be installed, and an entrance/exit includes not only an entrance/exit with a door or gate, but also a passageway through which people, vehicles, etc. can pass.

In the first embodiment of the present invention shown in Figures 1 to 7, reference numeral 1 denotes a joint cover support device that supports a joint cover device X (see, for example, Figure 5) that covers a joint 2 between one frame 3 and another frame 4. The joint cover support device 1 is a concept that includes the joint cover device X.

In Figure 1, reference numeral 1 denotes a joint cover support device, 13 denotes a pair of left and right hinge members, 12 denotes a pair of left and right link mechanism mounting members, 9 denotes a first link mechanism located on the front side (joint cover side), 10 denotes a second link mechanism located on the rear side, which corresponds to the opposite side from the joint cover side, 8 denotes a vertically elongated mounting portion such as a rod or rail, 6 denotes an expandable link mechanism having multiple central pivot portions 5 to be attached when viewed from the elongated mounting portion 8, and 7 denotes multiple joint covers. The joint cover device X or joint cover support device 1 that covers the joint 2 between the left and right frames is made up of a combination of the above components.

The joint cover support device 1 of the present invention is composed of an expandable link mechanism 6 having multiple central pivot points 5 for long mounting members 8 that are installed at a required vertical interval in the joints 7 of both frames 3, 4 and that do not displace vertically, and mounting members 8 that are arranged at a specified horizontal interval, are pivoted to the central pivot points 5, and can mount multiple joint covers 7. The expandable link mechanism 6 is composed of a first link mechanism 9 and a second link mechanism 10, one end of which is attached to one frame 3 and the other end of which is attached to the other frame 4. These first and second link mechanisms 9, 10 are formed in approximately the same shape and are positioned so that they overlap in the front-to-rear direction.

As shown in Figure 1, the joint cover support device 1 is composed of a plurality of telescopic link mechanisms 6 each equipped with a plurality of central pivot parts 5 that are fixed to the vertical direction and are arranged in the joint section 2 with one end attached to one body 3 and the other end attached to the other body 4, and a plurality of mounting members 8 each pivoted to the central pivot parts 5 and capable of mounting a joint cover 7.

As shown in Figures 2 and 3, the telescopic link mechanism 6 is composed of a first link mechanism 9, one end of which is attached to the one body 3 and the other end of which is attached to the other body 4, and one or more second link mechanisms 10, one end of which is attached to the one body 3 and the other end of which is attached to the other body 4, and which are arranged so as to substantially abut the front or back of the first link mechanism 9.

The telescopic link mechanism 6 may be generally rectangular in shape when viewed from the front, but is preferably formed to be generally hexagonal or rectangular. In this embodiment, the link members 11 are combined to form a generally hexagonal shape when viewed from the front, like a normal diamond-shaped link mechanism with the top and bottom sections cut horizontally.

As mentioned above, the first link mechanism 9 is formed by combining bar-shaped link members 11, such as solid or pipe-shaped members, that cross each other in the front-to-rear direction (the link members 11 are staggered) in a pivoted state so that it has a roughly hexagonal shape when viewed from the front. The pivot members attached to the left and right bodies 3, 4 and a pivot member positioned roughly horizontally to these pivot members form the central pivot member 9a.

The second link mechanism 10 is formed by combining link materials 11 in a staggered manner so as to have approximately the same shape as the first link mechanism 9, and is arranged so as to approximately abut against the first link mechanism. Note that arranging the second link mechanism 10 so as to approximately abut against the front or back surface of the first link mechanism 9 does not mean that the link materials 11 are arranged so as to be in close contact with each other, but rather that the second link mechanism 10 as a whole is arranged so as to be overlapped so as to approximately abut against the front or back surface of the first link mechanism 9.

In other words, four link members 11 are arranged alternately in the front-to-rear direction and pivotally supported, and in a plan view, the four link members 11 overlap each other without any gaps. This state is achieved by providing the second link mechanism 10 so that it is in approximate contact with the front or rear surface of the first link mechanism 9.

The central pivot portion 5 of the telescopic link mechanism 6 is formed by arranging the central pivot portion of the first link mechanism 9 and the central pivot portion of the second link mechanism 10 coaxially.

In this embodiment, the second link mechanism 10 uses two link members 11 that are pivotally supported and crossed alternately, similar to a normal link mechanism, but it may also use four or more link members 11 that are pivotally supported and crossed alternately (a double or more than double link mechanism).

By configuring the telescopic link mechanism 6 in this way, with the first link mechanism 9 and the second link mechanism 10 in abutting contact, the strength and rigidity of the telescopic link mechanism 6 are significantly improved, allowing it to support joint covers and other items without deformation or damage even when exposed to strong winds.

In this embodiment, the pivotal support portions at the left and right ends of the first link mechanism 9 and the second link mechanism 10 are pivotally supported together on a link mechanism mounting member 12 that is substantially channel steel. The left and right frames are then attached to this link mechanism mounting member 12 via hinge members 13. In other words, the telescopic link mechanism 6 is attached to the left and right frames 3, 4 via this link mechanism mounting member 12 and hinge members 13.

In this embodiment, the mounting member 8 is a bar-shaped member, such as a solid or pipe-shaped member, that is pivoted to the central pivot 5 of the telescopic link mechanism 6. It may also be composed of a roughly channel steel rail member that is pivoted to the central pivot 5 of the telescopic link mechanism 6, and a mounting member main body that is fixed to this rail member.

When in use, the joint cover 7 is fixed to this mounting member 8 with screws or the like. Any known joint cover can be used as the joint cover 7. One example is a joint cover 7 that is roughly crank-shaped in plan view and is attached to the mounting member 8 in multiple pieces to close the joint 2 without leaving any gaps.

As shown in Figures 4 and 5, the joint cover device X of the present invention, which uses such a joint cover support device 1, is composed of the joint cover support device 1 of the present invention, one end of which is attached to one frame and the other end of which is attached to the other frame, and a joint cover 7 that is attached to the mounting member 8 of the joint cover support device 1 and covers the joint portion 2.

When an earthquake causes the left and right frames 3, 4 to shake and narrow the joint 2, as shown in Figure 6, the expansion link mechanism 6 contracts left and right and displaces so that the overlap width of adjacent joint covers 7 increases, absorbing the shaking caused by the earthquake.

When an earthquake causes the left and right frames 3, 4 to shake so that the joint 2 widens, as shown in Figure 7, the expansion link mechanism 6 extends left and right and displaces so that the overlap width of adjacent joint covers 7 becomes smaller, absorbing the shaking caused by the earthquake.

[Different modes for carrying out the invention]
Next, different embodiments for carrying out the present invention will be described with reference to Figures 8 and 9. In describing these different embodiments for carrying out the present invention, the same components as those in the first embodiment for carrying out the present invention will be designated by the same reference numerals, and duplicated descriptions will be omitted.

The second embodiment of the present invention shown in Figures 8 and 9 differs from the first embodiment of the present invention mainly in that it uses an expandable link mechanism 6A that is formed so that it has a generally rectangular overall shape when viewed from the front. This joint cover support device 1A also achieves the same effects as the first embodiment of the present invention.

The first and second link mechanisms 9A, 10A that make up the telescopic link mechanism 6A of this embodiment have link members 11 near their left and right ends that protrude toward the left and right bodies, and these protruding ends abut against the wall surfaces of the left and right bodies or the link mechanism mounting members 12.When the telescopic link mechanism 6 extends or contracts left and right, the protruding ends slide up and down on the wall surfaces of the left and right bodies or the link mechanism mounting members 12.

In this embodiment of the present invention, the telescopic link mechanism is attached to the left and right frames via hinge members and link mechanism mounting members, but it is not necessary to use hinge members. Furthermore, it may also be attached to at least one of the frames via a spacer. By attaching it via a spacer in this way, it is possible to ensure a certain range of shaking caused by an earthquake, even if the joint cover is made roughly flush with the front wall surface of the frame.

The present invention is used in the industry that manufactures joint cover support devices.

X: joint cover device, 1: joint cover support device,
2: Joint, 3: One of the structures,
4: The other body, 5: The central pivot,
6, 6A: Telescopic link mechanism, 7: Joint cover,
8: Mounting member; 9: First link mechanism;
10: Second link mechanism; 11: Link member;
12: Link mechanism mounting member, 13: Hinge member.

Claims (2)

A joint cover support device used in a joint cover device that closes a joint between one skeleton and another skeleton,
The telescopic link mechanism is provided with a plurality of central pivot portions for long-length mounting members that are provided at predetermined intervals in the vertical direction at the joint portion and do not displace in the vertical direction, and the mounting members are arranged at predetermined intervals in the horizontal direction, are pivoted to the central pivot portions, and can be used to attach a plurality of joint covers.
The telescopic link mechanism is composed of a first link mechanism and a second link mechanism, one end of which is attached to one of the bodies and the other end of which is attached to the other body, and these first and second link mechanisms are formed in approximately the same shape and are positioned so that the first link mechanism and the second link mechanism overlap in the front-to-back direction in a roughly abutting state . The joint cover support device described in claim 1, characterized in that the telescopic link mechanism is formed so that it has an overall approximately hexagonal or approximately rectangular shape when viewed from the front.