JP3166609U - Open joint device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening joint device capable of always covering an opening formed in the ground between buildings even when the opening width fluctuates at the time of an earthquake or the like. SOLUTION: In an opening 2 formed between a building A and the ground B facing the building A, a main body member 12 makes a predetermined inclination angle with respect to a vertical direction on a foundation side surface of the ground B and turns around a hinge 15. Provide a joint plate support device rotatably attached to the. The upper end roller 17 of the joint plate support device rotatably supports the joint plate member 5 provided so as to cover the opening 2. Further, the overhanging member 3 is extended from the building A side so as to cover the joint plate member 5. When the ground side surface 4 on the building A side comes into contact with the guide roller 18 provided on the main body member 12 at the time of an earthquake or the like, the guide roller 18 rotates to rotate the main body member 12 around the hinge 15. As a result, the joint plate member 5 supported by the upper end roller 17 is folded and accommodated in the opening 2. [Selection diagram] Fig. 4

Description

  The present invention relates to an opening joint device, and particularly covers an opening formed in the ground between buildings constructed with a predetermined separation even when the opening width fluctuates due to an earthquake or the like. The present invention relates to an open joint device.

  For example, a seismically isolated building with a seismic isolation device between the building foundation and the frame has a large amount of shaking due to the seismic isolation device in the event of an earthquake. A grooved portion is provided. The opening width of these groove-shaped parts is set by the amount of displacement generated by the seismic isolation device at the time of the assumed earthquake. Usually, the opening part is an opening joint built in a slab or the like extended from the building side. The surface is covered with a device or the like to prevent a resident or user from falling down.

  Since this type of open joint device is constructed between the building and the ground, etc., various joint devices that absorb the phase difference caused by shaking between the building and the ground with different shaking during an earthquake, etc. Has been proposed (Patent Document 1, Patent Document 2).

  In the joint device disclosed in Patent Document 1, in a normal state, a plurality of movable joint covers are provided on one side of the right and left casings of the joint portion, and a plurality of arm-shaped supports having alternately different lengths according to each movable amount. It comes to support with a board. The base portion of each arm-shaped support plate is fixed to the housing with an anchor by a pivot pin. In the state where the joints spread, the movable joint cover plays a role of closing the opening that follows and spreads on one side of the separating housing. On the other hand, when the joint is narrowed, the movable fall prevention plate receives the force of the shrinking casing, and sequentially rotates the arm-shaped support plate that connects the uppermost movable joint cover in the same horizontal direction. It is structured so that they are stacked one after the other.

  The joint isolation device for a seismic isolation building disclosed in Patent Document 2 is provided at an opening between a building and a ground-side retaining wall, and a support pin 6 is provided between the eaves protruding from the building side and the retaining wall. The central maintenance link device 7 is constructed. This central maintaining link device 7 is Y-shaped or X-shaped in plan view, and a support pin 6 located in the center of the link supports a slide joint plate 8 that can move following the change of the opening width from below. It is supposed to be. As a result, the slide joint plate 8 reliably covers the space between the fixed joint plate 11 and the movable joint plate 12, and a joint covering the opening can be configured.

Japanese Patent Laid-Open No. 2004-210221 JP 2000-80731 A

  In the joint device disclosed in Patent Document 1, since the lowermost cover of the movable joint cover arranged in several stages is fixed, when the entire cover shrinks, the width of the cover and the upper cover overlap with each other. The width dimension of the overlapping cover of several steps must be set in consideration of the clearance setting. For this reason, the clearance needs to be set to be larger than the movable amount of the movable joint cover and the dimension of the cover width. Accordingly, it is necessary to increase the size of each member, and there is a problem that the overall cost is high.

  In the joint device disclosed in Patent Document 2, when the opening is opened, all of the fixed joint plate 11, the movable joint plate 12, and the slide joint plate 8 positioned therebetween are arranged in the horizontal direction. Since the plate 8 moves horizontally and closes the joint, it is necessary to set a large joint width in order to install each plate of the joint device even during normal operation. Therefore, in the case where joints are provided around the entire periphery of a building having a large flat area, the cost of the joints in terms of member cost, construction cost, and process is large. Therefore, the object of the present invention is to solve the problems of the conventional technology described above, and to design the size of the opening by designing the joint device provided in the opening provided between the buildings to have a compact structure. It is an object of the present invention to provide an opening joint device that can be accommodated in a minimum dimension that can be accommodated and that can return the joint cover following the opening width.

  In order to achieve the above object, the present invention is an opening joint device provided in an opening formed in a groove shape between a building and the surrounding ground, wherein the body member is a side surface of the building foundation of the building or A joint plate support device mounted on the support surface so as to be rotatable about an attachment axis to the support surface with any one of the opposing ground side surfaces as a support surface and having a predetermined tilt angle with respect to the vertical direction, The base is pivotally supported by the upper edge of the foundation of the frame on the side where the main plate support device is attached, and the installation position is maintained by the upper end roller provided in the main body member so as to cover the opening. And a projecting member extending from a housing opposite to the installation side of the joint plate support device so as to cover the joint plate member, and the joint plate support device includes the upper end roller. To support the vicinity of the tip of the joint plate member In addition, a guide roller is provided on the free end side of the joint plate support device, and the guide roller is brought into contact with the opposite side surface of the frame base or the ground side when the ground changes, thereby rotating the guide roller. The main body member is rotated around the attachment shaft, and the joint plate member supported by the upper end roller is accommodated so as to be rotated at the root portion and folded into the opening.

  The joint plate support device is preferably held in a standing state by a lower damper provided between the support end surface and the main body member.

  It is preferable that the other roller is pivotally supported with a predetermined offset in a direction in which it is folded with respect to the main body of the joint plate support device.

  The joint plate support device has an urging means on the upper side with respect to the lower damper, and the urging means causes the ground to change in a direction in which the opposing skeleton foundation side surface or the ground side surface is separated. At this time, it is preferable that the main body member is rotated around the attachment shaft in an upright direction to operate to lift the folded joint plate material.

  According to the present invention having the above-described configuration, the opening joint device provided between buildings or the like has a compact structure, and the minimum opening required for building design regardless of the size of the device. The size can be accommodated, and the joint cover plate can be restored following the opening width.

The partial cross section perspective view which showed the opening part provided between the building and the ground in which the opening joint apparatus of this invention is installed. The partial top view which showed the state which installed the opening joint apparatus in the opening part shown in FIG. The top view which showed the planar shape of the opening joint apparatus shown in FIG. The front view which showed the front shape of the opening joint apparatus shown in FIG. The side view which showed the side shape of the opening joint apparatus shown in FIG. Explanatory drawing which showed the state of the opening joint apparatus at the time of opening width maximum. Explanatory drawing which showed the operation state of the opening joint apparatus when an opening part width | variety becomes narrow. Explanatory drawing which showed the operation state on the plane shown by the arrow line in FIG. 5 corresponding to FIG. The top view which showed the opening joint apparatus in the state which the opening part narrowed most.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings as a mode for carrying out the opening joint device.

  FIG. 1 shows a groove-like opening provided as an insulating part between a building A in which a seismic isolation device (not shown) is installed in the basement and a ground B around the building A, and an upper surface (ground) of the opening 2 It is the fragmentary sectional perspective view which showed a part of the opening joint apparatus 1 based on this invention provided so that an upper surface) might be obstruct | occluded. The building A in which the seismic isolation device (not shown) is installed has a clear design roll width on the ground surface at the time of the earthquake, so the width L of the opening 2 shown in the figure is also designed. It is set based on the value. In the figure, the opening 2 includes an overhanging foot plate 3 extending from the building A side to substantially the opposite end of the opening 2, and a joint cover plate 5 below the overhanging foot plate 3 is an underground wall 4 of the building A. It extends to the vicinity. The joint cover plate 5 is slightly shorter than the opening width L and is set to a length that is accommodated in the opening 2.

  In this embodiment, as shown in FIG. 1, the joint cover plate 5 is connected to a fixing portion 7 on the upper surface of the ground B via a hinge 6 having support ends 5a arranged at predetermined intervals in the longitudinal direction. By being supported by the plate support device 11 (hereinafter referred to as a joint plate support device 11), the tip portion 5b is held in a slightly lowered state. A steel plate is used for the joint cover plate 5 in the present embodiment, and the steel plate is exposed to the opening 2 and the joint cover plate 5 is exposed, and is in a state of being continuous with the overhanging tread plate 3. The plate thickness and the like are set so that the applied load and the like from the top can be supported.

  Hereinafter, the structure of the joint board support apparatus 11 which supports the joint cover board 5 from the lower surface side of the opening part 2 is demonstrated with reference to FIGS. FIG. 2 is a partial plan view showing the opening 2 between the building A and the ground B in plan view. In the upper part of the figure, a joint plate support device 11 installed in the opening 2, a joint cover plate 5 supported by the joint plate support device 11 and covering the opening 2 from the upper surface, and the building A are extended. The overhanging foot plate 3 that further covers the joint cover plate 5 is partially shown. As shown in the drawing, a plurality of joint plate support devices 11 are installed along the longitudinal direction of the opening 2 at a predetermined interval (in this embodiment, an interval of 0.9 m). FIG. 3 is a plan view showing the joint plate support device 11 supported by the underground wall surface 8 on the ground B side. FIG. 4 is a front view showing a support state of the joint cover plate 5 of the joint plate support device 11 in the opening 2. FIG. 5 is a side view showing a state in which the joint plate support device 11 is attached to the underground wall surface 8 on the ground B side.

  The joint plate support device 11 includes a main body frame 12, a guide frame 13 attached to the free end side of the main body frame 12, and a position holding device 20. As shown in FIGS. 4 and 5, the main body frame 12 is composed of a frame-like body in which angle steel is assembled into a quadrangular shape in this embodiment, and has a predetermined inclination angle θ (θ = 30 ° in this embodiment) from the vertical direction. ) And is supported on the underground wall surface 8 of the ground B through a hinge 15 so as to be rotatable. Further, a guide frame 13 is attached along the vertical side member 12 a on the free end side of the main body frame 12. As shown in FIGS. 3 to 5, the guide frame 13 has rollers 17 and 18 attached to the upper end and the lower end, and functions as a shaft support portion of the rollers 17 and 18, respectively. 4 and 5, the upper end support roller 17 is a resin roller having a diameter of 50 mm. The upper end of the roller is in contact with the lower surface of the joint cover plate 5, and supports the joint cover plate 5 from below. On the other hand, the lower end guide roller 18 is a roller made of the same material as the upper end support roller 17 and is pivotally supported by a bearing arm 19 extending from the lower end of the guide frame 13. At this time, the bearing arm 19 is connected to the lower end of the guide frame 13 in a state of being bent by an angle α (α = 150 ° in the present embodiment) at which a predetermined offset is secured downward from the guide frame 13, and its tip A lower end guide roller 18 is pivotally supported by the shaft. Therefore, the lower end guide roller 18 is positioned forward (downward) by a predetermined offset from the plane configured to include the main body frame 12. As a result, a displacement that narrows the opening 2 width L occurs as will be described later. When the underground wall surface 4 of the building A comes into contact with the lower end guide roller 18, a rotational force is applied to the lower end guide roller 18 and the lower end guide roller 18 rotates. The entire body frame 12 supporting the guide roller 18 is rotated so as to move around the hinge 15 on the side wall B side in the P direction (FIG. 5). At this time, the upper end support roller 17 moves obliquely downward as shown by a broken line in FIG.

  Further, in order to maintain the inclined state of the main body frame 12 supported via the hinge 15 on the side wall B side, a gas cylinder 21 as a position holding device 20 is provided between the lower side 12b of the main body frame 12 and the side wall B. Is installed. The gas cylinder 21 is in an initial state in an extended state, and when a predetermined compressive force is applied in the axial direction of the gas cylinder 21, the gas cylinder 21 is retracted so that the cylinder portion is accommodated in the main body, and the overall length is shortened. In the initial state, the gas cylinder 21 holds the main body frame 12 of the joint plate support device 11 at the position shown in FIGS. The cylinder pressure of 21 is maintained, and the gas pressure (internal pressure) is set so that the main body frame 12 does not rotate around the support portion. On the other hand, a tension spring 23 is attached between the side wall B and the lower side 12b of the main body frame 12 on the opposite side (upper side) across the main body frame 12 (see FIGS. 3 and 5).

[Operation of open joint device]
Hereinafter, the operation | movement at the time of the earthquake of the opening joint apparatus 10 of this invention is demonstrated with reference to FIGS.

(At maximum opening width)
FIG. 6 shows a state where the space between the building A and the side wall B is widened by Δ and the opening 2 is opened to the maximum ((L + Δ): hereinafter referred to as the maximum opening width) during an earthquake. Usually, the joint cover plate 5 covered with the projecting tread plate 3 on the building A side is more exposed from the support end on the side wall B side at this time. Since the maximum amount of movement of the building A can be assumed from the design maximum displacement angle of the seismic isolation device, the overhang is made so that no gap is generated between the overhang tread plate 3 and the joint cover plate 5 even at the maximum opening width. The length of the footboard 3 is set. In addition, it is expected that evacuees or the like pass through the joint cover plate 5 exposed at the maximum opening width, but the gas cylinder 21 as the position holding device 20 of the joint plate support device 11 reliably ensures the passing load at that time. The joint cover plate 5 is securely held at the free end side by the upper end support roller 17 of the joint plate support device 11.

(When opening width approaches)
FIGS. 7A to 7C show a process in which the building A and the side wall B gradually narrow and approach each other until the opening width becomes the minimum, and the joint plate support device at that time. 11 operations are schematically shown. FIG. 8 is an explanatory view showing the rotation state of the main body frame 12 on the plane indicated by the arrows in FIG. 5 as the operation states of FIGS.

  In the joint plate support device 11 installed in the opening 2 at all times, the lower end guide roller 18 is not in contact with the underground wall 4 of the building A as shown in FIG. As behavior at the time of an earthquake, as shown in FIGS. 7A to 7C, it is assumed that the opening is approaching in a narrowing direction. First, when the opening width is narrowed, the underground wall 4 of the building A comes into contact with the lower end guide roller 18 as shown in FIGS. 7 (a) and 8 (a). At that time, since the lower end guide roller 18 is set with a predetermined offset with respect to the main body frame 12, the main body frame 12 has a structure as shown in FIGS. 5, 7B and 8B. The acting component force acts in the P direction. At this time, the resistance force of the gas cylinder 21 is smaller than the component force acting in the direction of tilting the main body frame 12 out of the force acting on the guide roller 18 when the opening 2 is narrowed. The cylinder part rotates around the hinge 15 while receiving the resistance of the gas cylinder 21 that contracts. As a result, as shown in FIG. 7B, the position of the upper end support roller 17 is lowered, and the joint cover plate 5 supported by the upper end support roller 17 following this is the hinge 6 portion of the support position. Turn down at the bottom. As a result, the joint cover plate 5 is accommodated in the opening 2 as shown in FIG. 7C without contacting the underground wall 4 of the building A.

  FIG. 9 is a plan view of the states of FIGS. 7C and 8C in plan view. As shown in the figure, when the width of the opening 2 is minimized, the gas cylinder 21 is in the shortest state and the tension spring 23 is also in the longest state. Thereafter, when the ground moves in a direction in which the opening width widens due to rocking back or the like, the main body frame 12 spreads the lower end guide roller 18 around the hinge 15 due to the internal pressure of the gas cylinder 21 and the urging force in the shortening direction of the tension spring 23. Along with the movement in the direction, it can stand in the direction of returning to the initial state by rotating in the Q direction.

  As described above, the opening joint device 10 of the present invention has a function of storing the joint cover plate 5 following the opening width, so that the operation following the shaking direction at the time of an earthquake can be realized with a compact configuration. The opening 2 can be reliably closed.

  In the above description, the configuration and operation of the opening joint device 10 provided on the ground B side of the opening 2 between the building A and the ground B have been described, but the opening joint device 10 is provided on the underground wall on the building A side. By providing a structure corresponding to the overhanging foot board 3 on the ground B side, the same action can be achieved. Therefore, the present invention is not limited to the above-described embodiments, and various modifications within the scope of the claims are possible, and technical means appropriately modified within the scope of the claims are included. Embodiments obtained by combining are also included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Opening joint apparatus 2 Opening part 3 Overhanging footboards 4,8 Underground wall surface 5 Joint cover board 6 Hinge 11 Joint board support apparatus 12 Main body frame 13 Guide frame 17 Upper end support roller 18 Lower end guide roller 20 Position holding apparatus 21 Gas cylinder 23 Tension spring

Claims (4)

An opening joint device provided in an opening formed in a groove shape between a building and the surrounding ground,
The body member is attached to the building surface so as to be rotatable about a mounting axis on the support surface with a predetermined tilt angle with respect to the vertical direction, with either the building foundation side surface of the building or the opposing ground side surface as a support surface. A jointed plate support device,
An upper end roller provided on the main body member so that the root portion is rotatably supported on the upper edge of the frame foundation on the side on which the joint plate supporting device is attached, and covers the opening, and the installation position thereof A joint plate member that is held,
An overhang member extending from the housing opposite to the installation side of the joint plate support device so as to cover the joint plate member;
The joint plate support device supports the vicinity of the tip of the joint plate member with the upper end roller, and a guide roller is provided on the free end side of the joint plate support device, and faces the guide base to the housing base side surface. Alternatively, when the ground side surface is in contact with the ground, the guide roller is rotated, the body member is rotated around the mounting shaft, and the joint plate member supported by the upper end roller is moved to the root portion. The opening joint device is housed so as to be folded in the opening by being rotated by the step.   The open joint device according to claim 1, wherein the joint plate support device is held in a standing state by a lower damper provided between the support end surface and the main body member.   The opening joint device according to claim 1 or 2, wherein the other roller is pivotally supported with a predetermined offset in a folding direction with respect to a main body of the joint plate support device. .   The joint plate support device has an urging means on the upper side with respect to the lower damper, and the urging means causes the ground to change in a direction in which the opposing skeleton foundation side surface or the ground side surface is separated. 4. In any one of claims 1 to 3, wherein the main body member is rotated around the mounting shaft in an upright direction to operate to lift the folded joint plate material. The opening joint device as described.

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