JP7406284B1 - floor joint device - Google Patents

Abstract

An object of the present invention is to provide a floor joint device that can absorb shaking motion caused by an earthquake without opening the joint portion. SOLUTION: The joint plate support mechanism is composed of a first joint plate support part 5, a second joint plate support part 6, a joint plate support mechanism 7, a joint plate 8, and a cover member 10. A plurality of cylindrical members 12 fixedly provided on the other frame 4, movable support tubes 13 provided on each of the cylindrical members so as to be freely retractable, and a biasing tool 14 that urges the support tubes in a protruding direction. and a stopper that prevents the support tube from falling off the tube member, and the cover member support means is provided on the support tube and includes a bar member 23 that supports one end side of the cover member, and a bar member 23 that is provided on the support tube and supports one end of the cover member, and a stopper that prevents the support tube from falling off from the tube member. The cover member has one end supported by the bar member and the other end supported by the second joint plate support portion. [Selection diagram] Figure 1

Description

The present invention relates to a floor joint device and a joint plate that close joints between building blocks provided through joints.

Conventionally, floor joint devices installed in areas where boundary lines, etc. exist near the joints and there is not enough space because the joint plate slides left and right in the event of an earthquake are "installed through the joints". One of the floor structures is formed so that the width dimension is approximately the same as the width of the joints of the left and right floor structures, up to the boundary line. a joint plate support mechanism having an operating rod attached so as to always protrude from the support cylinder of the joint part by the width dimension of the joint part; , a fixed joint plate fixed to the support tube or the one floor framework and formed on an inclined surface with a lower end on the joint side protruding toward the joint; and a fixed joint plate fixed to the support tube or the one floor framework; The other floor structure has a protrusion located through the fixed joint plate, and the upper surface position is approximately the same as the upper surface position of the fixed joint plate, and the rear end portion is placed upwardly on the protrusion on the joint side of the other floor structure. a joint plate that is movably attached and whose tip portion is supported by the joint plate support mechanism to cover the joint portion; a stopper that restricts the protruding position of an operating rod of the joint plate support mechanism; a support fixed to the joint side of the one floor structure that fits under the protrusion of the other floor structure and slidably supports a support rod that protrudes downward from the tip of the operating rod of the mechanism; A "floor joint device" is known (Patent Document 1).

With such a floor joint device, even if sufficient sliding space for the joint plates could not be secured, the shaking motion caused by the earthquake could be absorbed, and the joints could be closed without any problems.

In such a floor joint device, it is necessary to install a joint plate support mechanism, which increases the cost compared to simply forming a joint plate support portion on the floor surface of the other frame. Therefore, in areas where sufficient space can be obtained for the joint plate to slide in the left-right direction, joint plate supports are formed on the frame and the joint plate is installed, and sufficient space for the joint plate to slide is provided. For areas that cannot be secured, it is possible to block the joint portions while reducing costs by supporting the joint plates using a joint plate support mechanism such as that disclosed in Patent Document 1.

However, by simply installing each of these floor joint devices, although the joints can be closed without any problem during normal times, there is a risk that the joints may open during an earthquake.

Patent No. 4499033

SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks of the conventional art, it is an object of the present invention to provide a floor joint device that is capable of absorbing shaking motion caused by an earthquake without opening the joint portion.

These and other objects and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.

However, the drawings are solely for illustrative purposes and do not limit the technical scope of the present invention.

In order to achieve the above object, the floor joint device of the present invention according to claim 1 is a floor joint device that closes a joint between one body frame and the other body frame, and is provided in the one body frame. a second joint plate support portion formed on a part of the other body at a portion facing the first joint plate support portion, and the first joint plate support portion. A joint plate support mechanism provided in a part of the part facing the support part and where the second joint plate support part is not formed, and one end side supported by the first joint plate support part. a joint plate that is attached in a state where the joint plate is attached and has its other end supported by either the second joint plate support portion or the joint plate support mechanism; A cover member whose end portion is supported by the second joint plate support portion and is capable of closing the joint portion so that the joint portion does not open between the joint plate and the other frame during an earthquake. The joint plate support mechanism includes a plurality of cylindrical members fixedly provided on the other body, movable support cylinders provided on each of the cylindrical members so as to be freely retractable, and the support cylinders protruding. and a stopper that prevents the support tube from falling off from the tube member. The cover member is comprised of a bar member that supports the other body, and a bracket that is attached to the other body and supports the bar member, and the cover member has one end supported by the bar member and the other end supported by the bar member. It is characterized in that it is supported by the second joint plate support section.

The bracket of the floor joint device according to claim 2 has a groove-shaped guide part, a pin is provided at the bottom of the protruding end side of the bar member, and the pin is inserted into the guide part. Ru.

As is clear from the above description, the present invention provides the following effects.
(1) In the invention set forth in claim 1, by providing the cover member, it is possible to reliably prevent the joint portion from opening during an earthquake.
(2) In the invention according to claim 2, the same effect as in (1) above can be obtained, and the shaking movement caused by the earthquake can be followed more smoothly.

1 to 13 are explanatory diagrams showing a first embodiment of the present invention.
FIG. 1 is a plan view (normal time) of a floor joint device showing a first embodiment. FIG. 2 is a sectional view taken along line 2-2 in FIG. 1. A sectional view taken along line 3-3 in FIG. 1. A sectional view taken along line 4-4 in FIG. 1. An explanatory diagram of one frame, the other frame, and a joint plate support device. FIG. 3 is an explanatory diagram of a cover member and cover member supporting means. Diagram (1) explaining the operation when the joint area is narrowed due to an earthquake. Diagram (2) explaining the operation when the joint area is narrowed due to an earthquake. An explanatory diagram of the operation of the cover member and the cover member supporting means in a state where the joint portion is narrowed due to an earthquake. Diagram (1) explaining the operation when the joint area is widened due to an earthquake. Diagram (2) explaining the operation when the joint area is widened due to an earthquake. FIG. 6 is an explanatory diagram of the operation of the cover member and the cover member support means in a state where the joint portion is widened due to an earthquake. An explanatory diagram of a state in which the joints widen due to an earthquake and the left and right building blocks sway in different front and rear directions.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments for carrying out the invention shown in the drawings.

In a first embodiment of the present invention shown in FIGS. 1 to 13, reference numeral 1 denotes a floor joint device installed between one frame 3 and the other frame 4 provided via a joint part 2. be.

Note that the left-right direction refers to the left-right direction in FIG. 1 (plan view), the front-back direction refers to the up-down direction in FIG. 1, and the up-down direction refers to the up-down direction in FIG. 2.

Furthermore, in the present invention, a frame refers to a structure such as a building, a road, a slab, an elevator shaft, etc., in which joint plates can be installed, and an entrance means not only a door or an entrance with a door, but also a building where people, vehicles, etc. It also includes passages that can be passed through.

As shown in FIGS. 1 to 4, the floor joint device 1 of this embodiment includes a first joint plate support portion 5 provided on one of the building blocks, a joint plate support portion 5, and A second joint plate support part 6 formed in a part of the other frame 4 at a part opposite to each other through a part 2, and a part opposite to the first joint plate support part 5 through a joint part 2. And, the joint plate support mechanism 7 provided in the part where the second joint plate support part 6 is not formed, and the joint plate support mechanism 7 is attached with one end side supported by the first joint plate support part 5. , a joint plate 8 whose other end side is supported by the second joint plate support section 6 or the joint plate support mechanism 7, one end supported by the cover member support means 9, and the other end supported by the second joint plate support mechanism 7. It is comprised of a plate-shaped cover member 10 that is supported by a joint plate support part 6 and can close the joint part 2 so that it does not open during an earthquake.

A first joint plate support part 5 is formed in one of the building blocks 3, and as shown in FIG. A concave portion formed on the floor surface on the second side so as to extend in the front-rear direction supports the bottom portion of the joint plate 8 on one end side. Note that a metal member, such as a substantially angle-shaped or substantially crank-shaped member extending in the front-rear direction, may be fixed to the wall surface on the side of the joint portion 2 of one of the building blocks 3, and may be used as the first joint plate support portion 5. A first joint plate support part formed in a concave shape on the floor surface of the frame 3 and a first joint plate support part to which a metal member such as a substantially angle-shaped or substantially crank-shaped member extending in the front-rear direction is fixed. May be used together.

A recessed second joint plate support portion 6 is formed in a part of the other body frame 4 that faces the one body body 3 via the joint portion 2 . Specifically, a second joint plate support portion 6 is formed in a portion where there is no boundary line or the like and the joint plate 8 can fully slide in the left-right direction. The joint plate 8 is formed to have a length that allows it to slide in the left and right direction during an earthquake.

On the other hand, a joint plate support mechanism 7 is provided in a portion of the other frame 4 that faces the one frame 3 via the joint portion 2 and in which the second joint plate support portion 6 is not formed. It is being The other end of the joint plate 8 is supported by the second joint plate support portion 6 or the joint plate support mechanism 7. It is desirable that the upper part of the joint plate support mechanism 7 (the part that supports the joint plate 8) be substantially flush with the upper surface of the second joint plate support part 6.

By the way, if the joint part 2 becomes narrow due to an earthquake, there is a gap between the end of the second joint plate support part 6 opposite to the joint part 2 or between the joint plate support mechanism 7 and the floor surface of the other frame 4. , an inclined surface 11 on which the joint plate 8 rides is formed.

The joint plate support mechanism 7 includes a square pipe-shaped cylindrical member 12 fixed to the other frame 4, and a support cylinder that is provided on the cylindrical member 12 so as to be freely protrusive and retractable, and whose upper surface can support the bottom surface of the joint plate 8. 13, a biasing tool 14 that always urges the support tube 13 to protrude toward one of the body parts, and a cylindrical member 12 that causes the support tube 13 to displace (protrude) from a predetermined portion toward the one body body side. A stopper 15 limits the protruding length of the support cylinder 13 to prevent it from falling off. In this embodiment, the stopper 15 uses a wire whose one end is fixed to the support cylinder 13 and the other end is fixed to the other frame 4. The stopper 15 may be provided with an engagement piece or the like, and when the support cylinder 13 protrudes to a predetermined length, the engagement piece abuts and controls the support cylinder 13 from protruding any further.

In this embodiment, this joint plate support mechanism 7 is provided with almost no gap in the front-rear direction, and even if the left and right frames 3 and 4 shake so that the joint part 2 becomes wider due to an earthquake, The joint portion 2 can be closed almost without any gaps.

The joint plate 8 may be supported by the support cylinder 13 both in normal times and during an earthquake, or it is supported by the cylinder member 12 in normal times and is supported by the support cylinder 13 when the joint part 2 swings due to an earthquake to widen it. It may be supported by In this embodiment, a configuration is adopted in which the joint part 2 is normally supported by the cylinder member 12, and is supported by the support cylinder 13 when the joint part 2 is shaken to widen due to an earthquake. With this configuration, the joint plate 8 can be supported by the cylindrical member 12 whose bottom surface is supported by the other frame 4, so the load applied from the joint plate 8 etc. can be efficiently received by the other frame 4. be able to.

In addition, when a level difference occurs between the upper surface of the support cylinder 13 and the rising inclined surface 11, it is desirable to provide the joint plate support mechanism 7 or the joint plate 8 with an inclined surface or the like to eliminate the level difference. In addition, it is desirable to provide a bar-shaped member that connects the protruding ends of each support tube 13. Under normal conditions, the tube member 12 supports the bottom surface of the joint plate 8, and during an earthquake, the support tube 13 supports the bottom surface of the joint plate 8. When supporting the joint plate 8, the upper surface of the bar member is formed to be approximately parallel to the upper surface of the cylindrical member 12, and the bottom surface of the joint plate 8 is supported by this upper surface, thereby making the joint portion narrower. Even in such a case, the joint plate 8 can be maintained substantially horizontally.

In the joint plate 8 of the present invention, as shown in FIG. 2 and FIG. When inserted and installed, one end is supported and the other end is supported by the second joint plate support part 6 or the joint plate support mechanism 7, and there are a plurality of joint parts in the front and back direction of the joint part 2, preferably approximately a gap. It is provided without any restrictions. In this embodiment, they are arranged with a gap of about 2 mm, and "substantially without a gap" does not mean that adjacent joint plates 8 are arranged in contact with each other, but also with a gap of a few millimeters. This also includes cases in which they are arranged with a certain amount of space between them.

The joint plate 8 includes a metal joint plate main body 18 that is substantially rectangular in plan view, the pile cases 16 provided on both sides of one longitudinal end of the joint plate main body 18, and the joint plate main body 18. A filling member 19 such as mortar or concrete filled inside the filling member 19, a decorative board 20 such as tiles such as marble or bricks pasted on the upper surface of the filling member 19, and a decorative board 20 such as tiles such as marble or bricks, and the other end side of the joint plate main body 18. A cover plate 22 is attached via a hinge member 21. This cover plate 22 is provided so as to be able to flatten cover the portion of the sloped surface 11, and covers the other portion of the upper portion of the portion where the second joint plate support portion 6 and the joint plate support mechanism 7 are installed. It is desirable that the upper part of the sloped surface 11 provided between the frame body 4 and the floor surface and extending in the left-right direction is also covered.

In addition, in this embodiment, the dimension in the longitudinal direction is different between the one whose other end side is supported by the second joint plate support part 6 and the one whose other end side is supported by the joint plate support mechanism 7, and the other end side is supported by the second joint plate support part 6. The one supported by the joint plate support part 6 will be referred to as a long joint plate 8a, and the one whose other end side is supported by the joint plate support mechanism 7 will be referred to as a short joint plate 8b. The long joint plate 8a has a total length (length in the left-right direction) that is approximately twice the width of the shaking motion caused by an earthquake, and the short joint plate 8b has a total length that exceeds the width of shaking motion caused by an earthquake, and the joint portion 2 The length is such that it will not fall off from the joint plate support mechanism 7 even when it is widest, and will not collide with the boundary line or other structures even when the joint is at its narrowest.

In this embodiment, the long joint plate 8a is locked using a general locking stake 17a fixed to the first joint plate support 5, and the short joint plate 8b is locked using a general locking stake 17a fixed to the first joint plate support 5. It is inserted into the joint plate support part 5 so as to be slidable in the vertical direction, engages with the pile case 16, and is locked using a locking stake 17b that can be displaced in the vertical direction together with the short joint plate 8b. Note that the long joint plate 8a may also be locked using the same locking stake 17b as the short joint plate 8b, and the locking pile 17 can absorb the shaking motion due to an earthquake without falling off from the pile case 16. In this case, the short joint plate 8b may be locked with a normal locking stake 17a.

Incidentally, in this embodiment, the joint plate main body 18 having a flat top surface is used, but the joint plate main body 18 may be inclined in the left-right direction (longitudinal direction) or in the front-rear direction (direction orthogonal to the longitudinal direction). Alternatively, reinforcing materials (not shown) such as a plurality of ribs or lattice-like ribs extending in the longitudinal direction of the joint plate body 18 may be used inside the joint plate body 18 having a shallow dish shape. ) may be fixedly provided. Further, for example, the joint plate 8 may use a plate-shaped (solid) joint plate body 18, or the joint plate 8 may not include a decorative board 20, a cover plate 22, or the like.

The cover member 10 has one end supported by the cover member supporting means 9, and the other end supported by the second joint plate support 6, so that the joint can be closed to prevent the joint from opening during an earthquake. In this embodiment, it is adjacent to the joint plate 8 (short joint plate 8b) whose other end is supported by the joint plate support mechanism 7, and whose other end is supported by the second joint plate support 6. It is provided so as to close the joint part 2 below the joint plate 8 (long joint plate 8a) on which the joint part is supported. That is, it is provided so as to close the joint part 2 on the second joint plate support part 6 side from near the boundary between the joint plate support mechanism 7 and the second joint plate support part 6 . The longitudinal dimension of the cover member 10 may be a dimension that exceeds the width of the longitudinal oscillation caused by an earthquake (a dimension that prevents the joint portion 2 from opening during an earthquake).

By providing the cover member 10 in this way, the joint portion 2 becomes wider due to an earthquake, and one of the building blocks swings forward (downward in Fig. 1) and the other building block swings backward (downward in Fig. 1). Even in such a case, the shaking motion can be absorbed without the joint portion 2 opening.

This cover member 10 is formed so that its one end side is substantially flush with the protruding end side (end on one frame side) of the support cylinder 13, and the other end side is formed as a second joint plate support. It is supported near the end of the portion 6 on the joint portion 2 side. Note that a recess 6a is formed in a portion of the second joint plate support portion 6 that supports the cover member 10 so that the top surface of the cover member 10 is substantially flush with the top surface of the second joint plate support portion 6. It is desirable that the recess 6a be formed with a length that allows the cover member 10 to slide in the left and right direction during an earthquake.

The cover member support means 9 is provided to connect the plurality of support cylinders 13, and includes a bar member 23 supporting the bottom of one end of the cover member 10, and a fixing portion 25a on the wall surface of the other frame 4. It has a movable part 25b that can be displaced (rotated) via a rotation shaft 24 provided therein, and is configured with a bracket 25 that supports the bar member 23, and the cover member 10 has one end thereof. The bottom of each side is supported by the bar member 23, the bottom of this bar member 23 is supported by a bracket 25, and the other end is supported by the second joint plate support 6.

In this embodiment, the bar member 23 is provided at the tip of the support cylinder 13, and in this embodiment, the bar member 23 is formed into a square pipe shape. The bottom surface of one end of the cover member 10 is fixed to the upper surface of the bar member 23 .

The bracket 25 is a member having a fixed part 25a fixed to the wall surface of the other frame 4, and a movable part 25b connected to the fixed part 25a via the rotation shaft 24. A groove-shaped guide portion 27 having a predetermined length is formed into which a pin 26 provided at the bottom of the protruding end portion of the bar member 23 is inserted.

This bracket 25 rotates about the rotation shaft 24 when the joint portion 2 becomes narrow. The groove-shaped guide portion 27 is formed in a shape that allows the pin 26 to maintain the engaged state at this time as well. As a result, the pin 26 and the guide portion 27 are always in an engaged state, and the bottom surface of the bar member 23 can be supported by the top surface of the bracket 25.

When the building blocks 3 and 4 sway in the left-right direction due to an earthquake and the joint portion 2 narrows, the long joint plate 8a runs over the sloped surface 11 as shown in FIG. 7, becoming inclined and absorbing the shaking movement caused by the earthquake. At the same time, as shown in FIG. 8, the short joint plate 8b rides on the sloped surface 11 and slides in the left-right direction on the floor surface of the other frame 4, absorbing the shaking movement caused by the earthquake. To enable such movement, in this embodiment, the joint plate 8 is inserted into the first joint plate support part 5 so as to be slidable in the vertical direction, engages with the pile case 16, and moves up and down with the joint plate 8. It is locked using a locking stake 17 that can be displaced in the direction. In addition, when the scale of the earthquake is small or even in the case of the largest earthquake expected, when the joint plate 8 is in an inclined state and can absorb the shaking movement caused by the earthquake, the first joint plate support part 5 The locking may be performed using a locking stake 17 that is fixedly provided in the.

By the way, when the joint portion 2 becomes narrow due to an earthquake, the support tube 13, the cover member 10, and the cover member support means 9 are pressed by the wall surface of one of the building blocks 3, as shown in FIG. 13 slides into the inside of the cylindrical member 12, and the cover member 10 whose one end is attached to the cylindrical member 12 also slides in the left-right direction on the recess 6a. Further, the bracket 25 of the cover member support means 9 is pressed by the pin 26 that engages with the guide portion 27 and rotates about the rotation shaft 24 as a fulcrum, thereby absorbing the shaking motion caused by the earthquake.

When the building blocks 3 and 4 sway in the left-right direction due to an earthquake and the joint portion 2 widens, the long joint plate 8a slides on the upper surface of the second joint plate support 6, and the short joint plate 8b slides as shown in FIG. As shown in FIG. 11, the upper surface of the support tube 13 of the joint plate support mechanism 7 slides in the left-right direction to absorb the shaking motion caused by the earthquake.

At this time, as shown in FIG. 12, the cover member 10 and the cover member support means 9 have the stopper 15 so that the amount of protrusion of the support tube 13 is the same as in normal times, and the cover member 10 is placed on one end side of the support tube 13. Since they are attached, the cover member 10 and the cover member support means 9 swing in synchronization with the other frame 4, as shown in FIG. 10, and absorb the shaking movement caused by the earthquake.

When the left and right building blocks 3 and 4 shake in different front and rear directions due to an earthquake, and the joint section 2 swings to spread out, the long joint plate 8a moves to the second joint plate support section 6, as shown in FIG. The short joint plate 8b slides on the upper surface of the support cylinder 13 of the joint plate support mechanism 7 in the left-right direction and the front-rear direction, thereby absorbing the shaking motion caused by the earthquake.

At this time, the cover member 10 is located above the joint part 2a between the short joint plate 8b and the second joint plate support part 6, and closes the joint part 2a so that the joint part 2a in this part does not open. be able to. Here, "the joint 2 opens" refers to the creation of a gap that would allow a person to fall; for example, even if the opening is the size of a grating lid or a gap that does not allow a person to fall. , is included in the state of "closing the joint part 2 so that it does not open".

In addition, although the embodiment of this invention demonstrated the joint plate provided with a decorative board and a cover plate, these do not necessarily need to be provided.

In addition, although the bracket has been described as a plate-shaped one, a mechanism with the same structure as the joint plate support mechanism (tubular member, support tube, and biasing device) is provided independently near the front end of the cover member. may be used as a bracket. In this case, the cylinder member becomes the fixed part and the support cylinder becomes the movable part.

Furthermore, the bracket does not have a guide groove, and a restricting means such as a wire is connected to the bracket, which biases the rotation axis of the bracket and restricts the rotation of the bracket from exceeding a certain angle. The upper surface may support the bar member at all times.

The present invention finds use in the industry of manufacturing floor joint devices.

1: Floor joint device, 2: Joint part,
3: One body, 4: The other body,
5: first joint plate support part, 6: second joint plate support part,
7: Joint plate support mechanism, 8: Joint plate,
9: Cover member supporting means, 10: Cover member,
11: Riding slope, 12: Cylindrical member,
13: support tube, 14: biasing tool,
15: Stopper, 16: Pile case,
17: Locking stake, 18: Joint plate body,
19: Filling member, 20: Decorative board,
21: Hinge member, 22: Cover plate,
23: Bar member, 24: Rotation shaft,
25: Bracket, 26: Pin,
27: Guide section.

Claims (2)

A floor joint device for closing a joint between one frame and another frame, comprising a first joint plate support provided on the one frame and a portion facing the first joint plate support. A second joint plate support part formed on a part of the other body of the structure, and a part of the part facing the first joint plate support part, and the second joint plate support part is formed. a joint plate support mechanism provided in a portion where the joint plate support mechanism is not attached, and a joint plate support mechanism that is attached with one end side supported by the first joint plate support portion, and either the second joint plate support portion or the joint plate support mechanism. a joint plate whose other end side is supported, one end supported by the cover member support means, and the other end supported by the second joint plate support, and which is connected to the joint plate in the event of an earthquake. and a cover member capable of closing the joint so that the joint does not open between the other building blocks,
The joint plate support mechanism includes a plurality of cylindrical members fixedly provided on the other body, movable support cylinders provided on each of the cylindrical members so as to be freely retractable, and a plurality of cylindrical members fixedly provided on the other body, movable support cylinders provided on each of the cylinder members in a direction in which the support cylinders protrude. Comprised of a biasing tool that biases, and a stopper that prevents the support tube from falling off the tube member,
The cover member supporting means includes a bar member that is provided on the support tube and supports one end of the cover member, and a bracket that is attached to the other body and supports the bar member, In the floor joint device, the member has one end supported by the bar member and the other end supported by the second joint plate support. The floor according to claim 1, wherein the bracket has a groove-shaped guide part, a pin is provided at the bottom of the protruding end of the bar member, and the pin is inserted into the guide part. Joint device for use.

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