JP6002702B2 - Floor joint device - Google Patents

Description

  The present invention relates to a floor joint device for covering a joint portion between left and right floor frames.

Conventionally, this type of floor joint device is formed with a joint plate slide concave portion on the other joint side floor surface, a rear end portion is attached to one joint portion side floor frame, and a front end portion is formed on the joint plate slide concave portion. A joint plate supported so as to be slidable is positioned, and the joint plate located in the joint plate slide recess is covered with a cover plate.
However, the floor joint device constructed in this way can absorb shaking movements that widen or narrow joints due to earthquakes, but the height of the floor frame on the left and right sides is uneven due to uneven settlement. If they are different, the cover plate is pushed up by the joint plate, which is dangerous.

Japanese Patent No. 3955545

  In view of the conventional drawbacks as described above, the present invention can absorb the shaking motion even if the left and right floor frames sink unevenly in an earthquake, and even if the joint is widened or narrowed, An object of the present invention is to provide a floor joint device that can absorb the shaking motion and can securely support the joint cover and can travel safely on the joint cover.

The above 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 for explanation only and do not limit the technical scope of the present invention.

In order to achieve the above object, the present invention provides a joint cover support mechanism capable of expanding and contracting at both ends attached to a floor case on the joint part side of the left and right floor case provided through the joint part at predetermined intervals. In the floor joint device comprising a joint cover device using a joint cover that is attached to the plurality of joint cover support mechanisms and overlaps at least two tip portions, the plurality of joints The rear end of the cover support mechanism is attached to the one joint-side floor case at a predetermined interval so that the tip can be rotated in the vertical and horizontal directions, and one of the dimensions of the joint is less than half the width of the joint. A support arm body, a locking rail formed in a horizontal direction near a top portion of an inner surface of the one support arm body, a guide rail formed in a horizontal direction at a lower position of the locking rail, and the one support A plurality of support arms each including a support roller attached to a lower portion of the front end portion of the inner side surface of the arm main body, and the front end portion of the other joint portion side floor frame can be rotated vertically and horizontally. As described above, the rear end portion is attached at a predetermined interval, and the other support arm main body having a size less than half the width of the joint portion is formed in a horizontal direction at a position near the upper portion of the inner side surface of the other support arm main body. A plurality of locking rails, a guide rail formed in a horizontal direction at a lower position of the locking rail, and a support roller attached to a lower portion of the tip of the inner side surface of the other support arm main body. and number of the other support arm, the engaging piece engages the respectively locking rail above the one support arm and the other support arm and said one of the support arms and the other of the lower end of the support arm It has an engaging portion which engages from below, respectively, and the central support arm body is less than half the dimension of the width of the joint portion, attached to the one support arm of the central support arm body, of the one one of the support arms supporting rollers rolling on the guide rail support arm, wherein attached to the other support arm of the central support arm body, the other supporting arm for rolling the other support arm of the guide on the rails A plurality of central supports comprising a support roller and a pair of guide rails formed on both side surfaces of the central support arm body on which the support roller of the one support arm and the support roller of the other support arm roll. The arm and the plurality of central support arms are positioned at the center of the joint portion, or fall off from the one support arm and the other support arm. A floor joint device is constituted by a central support arm holding device that prevents the above.

As is clear from the above description, the present invention has the following effects.
(1) According to the first aspect, even if the joint portion becomes wider or narrower due to an earthquake, the joint cover support mechanisms are expanded and contracted to absorb the shaking motion.
At this time, the support roller of one support arm rolls without detaching on the guide rail of the central support arm, and one support arm support roller of the central support arm does not detach from the guide rail of one support arm. The support roller of the other support arm rolls without moving on the guide rail of the center support arm, and the other support arm support roller of the center support arm moves off the guide rail of the other support arm. Since the rolling is performed without any expansion, the one supporting arm, the central supporting arm and the other supporting arm extend and contract in an integrated state, so that even if a load is applied to the upper part, the supporting arm can be firmly supported without being bent. .
(2) According to the above (1), the front end of one support arm of the plurality of joint cover support mechanisms is attached to one joint side floor frame so that it can be rotated in the vertical and horizontal directions, and the other support arm Since the tip is attached to the floor joint on the other joint so that it can rotate in the vertical and horizontal directions, even if the left and right floor cabinets swing back and forth in different directions due to an earthquake, It can follow and can support the joint cover reliably.
(3) By setting the upper surface of one support arm, the upper surface of the central support arm and the upper surface of the other support arm in the same plane according to (1), it is possible to easily install the joint cover positioned in the portion. it can.
(4) The second aspect of the present invention can obtain the same effects as the above (1) to (3), and is maintained in parallel by a parallel maintaining rod pivotally supported between the tip portions of one support arm and the other support arm. Thus, the one support arm and the other support arm can be prevented from swinging, and the one support arm and the other support arm can be slid and moved more smoothly.

The top view of the 1st form for carrying out the present invention. The front view of the 1st form for carrying out the present invention. The top view (including a schematic section) of the joint cover support mechanism of the 1st form for carrying out the present invention. FIG. 4 is an enlarged sectional view taken along line 4-4 in FIG. 3; The front view of the joint cover support mechanism of the 1st form for carrying out the present invention. Explanatory drawing of one support arm of the 1st form for implementing this invention. Explanatory drawing of the other support cover of the 1st form for implementing this invention. Explanatory drawing of the center support arm of the 1st form for implementing this invention. Explanatory drawing from the front view side of the joint cover apparatus of the 1st form for implementing this invention. Explanatory drawing of the joint cover support mechanism in case the joint part of the 1st form for implementing this invention becomes large. Explanatory drawing of the joint cover support mechanism when the joint part of the 1st form for implementing this invention becomes narrow. Explanatory drawing of the state which sunk unevenly of the 1st form for implementing this invention. Explanatory drawing from the planar view side of the state swung in the front-back direction from which the 1st form for implementing this invention differs. The top view of the 2nd form for carrying out the present invention. The front view of the 2nd form for carrying out the present invention. Explanatory drawing from the front view side of the joint cover apparatus of the 2nd form for implementing this invention. The top view of the 3rd form for carrying out the present invention. The front view of the 3rd form for carrying out the present invention. The top view of the joint cover apparatus of the 3rd form for implementing this invention. The top view of the 4th form for carrying out the present invention. The side view of the 4th form for carrying out the present invention. Explanatory drawing of the attachment state of the joint cover support mechanism of the 4th form for implementing this invention. Explanatory drawing of one support arm of the 4th form for carrying out the present invention. Explanatory drawing of the other support arm of the 4th form for implementing this invention.

  Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings.

  In the first embodiment for carrying out the present invention shown in FIG. 1 to FIG. 13, reference numeral 1 denotes both ends of the left and right floor frames 3, 3 provided via the joint 2 so as to be able to travel, at predetermined intervals. A plurality of joint cover support mechanisms 4 that can be extended and contracted attached to the joint portions of the left and right floor casings 3 and 3, and at least 2 attached in a state of being supported by the joint joint support mechanisms 4. It is a joint device for floors according to the present invention comprising a joint cover device 5 in which at least two tip portions overlap.

  As shown in FIGS. 3 to 8, the plurality of joint cover support mechanisms 4 are attached to the one joint part side floor frame 3 by attachment brackets 6 so that the tip part can be rotated in the vertical and horizontal directions, and The upper surface of the support arm 7 having a dimension less than half the width dimension L of the joint 2 and the upper joint by the mounting bracket 6 so that the tip of the other joint can be turned vertically and horizontally. The other support arm 8 which is attached so as to be flush with the upper surface of one support arm 7 and has a dimension of half or less of the width dimension L of the joint 2, and the other support arm 8 and the one support The central support arm 9 can support the arm 7 so as to be movable in the telescopic direction, and has a size less than half of the width L of the joint portion 2 where the upper surface and the upper surface of the other support arm 8 are flush with each other. And this central support arm 9 It is composed of a central supporting arm holding apparatus 10 to be always positioned at the center portion of the joint portion 2.

  The mounting bracket 6 includes a fixed bracket 13 formed with a cylindrical bearing 12 fixed to the floor frame 3, 3 on the joint portion side with a plurality of screws 11, and the bearing 12 of the fixed bracket 13. A shaft 14 that is rotatably inserted, and a support portion 16 that is U-shaped and fixed to the upper end portion of the shaft 14 and supports the one support arm 7 by a pivot shaft 15 so as to be rotatable in the vertical direction. The movable side metal fitting 17 is used.

  The one support arm 7 is a plate-like one support arm main body formed with a support portion 19 in which a shaft hole 18 into which the pivot shaft 15 of the mounting bracket 6 protruding rearward is inserted at the rear end upper portion is formed. 20, a locking rail 21 formed in the horizontal direction near the upper portion of the inner surface of the one support arm body 20, and a guide rail 22 formed in the horizontal direction at a lower position of the locking rail 21. The support roller 23 is attached to a portion of the inner side surface of the one support arm body 20 near the lower end of the tip.

  The other support arm 8 protrudes rearward at the upper part of the rear end, and the other plate-like support arm formed with a support portion 19 in which a shaft hole 18 into which the pivot shaft 15 of the mounting bracket 6 is inserted is formed. The main body 24, a locking rail 21 formed in the horizontal direction at a portion near the upper part of the inner side surface of the other support arm main body 24, and a guide rail 22 formed in the horizontal direction at a lower position of the locking rail 21. And the supporting roller 23 attached to a portion of the inner side surface of the other supporting arm main body 24 near the lower end of the tip.

  The central support arm 9 is formed integrally with a plate-shaped central support arm main body 25 positioned between the one support arm 7 and the other support arm 8, and the central support arm main body 25. The engagement pieces 26 and 26 that engage with the engagement rail 21 of the one support arm 7 and the engagement rail 21 of the other support arm 8, respectively, and the lower end portion of the central support arm body 25 are integrally formed. Engaging portions 27 and 27 for preventing the lower end portion of the one support arm 7 and the lower end portion of the other support arm 8 from moving outward, and the one support arm 7 of the central support arm main body 25. Roll on the guide rail 22 and on one guide arm roller 28 attached to the one support arm 7 side and on the guide rail 22 of the other support arm 8 of the central support arm body 25. You The other support arm support roller 29 attached to the other support arm 8 side, the support roller 23 of the one support arm 7 formed at a lower portion of the central support arm main body 25, and It comprises guide rails 30 and 30 on which the support roller 23 of the other support arm 8 rolls.

  The central support arm holding device 10 has a central pivot pin 31 provided so as to protrude upward at the center upper portion of the central support arm 9, and the central pivot pin 31 is positioned at the central portion of the joint portion 2. It is composed of pantograph-shaped elastic links 32, 32.

  The joint cover device 5 is disposed at an upper part of the joint cover support mechanisms 4 at portions having different sequential heights pivoted by pivot pins 34 on the central pivot portions 33, 33 of the telescopic links 32, 32. A plurality of joint cover support bars 35, and a plurality of joint covers 36 that are slidable with the rear end portions fixed to the plurality of joint cover support bars 35 having different heights and the front end portions overlapping each other. And a fixed joint cover 37 that is overlapped with the joint cover 36 at the rear end of the plurality of joint covers 36 and fixed to the other floor frame 3 that is slidable.

  The floor joint device 1 having the above-described configuration includes a joint portion 2 between the left and right floor frames 3 and 3, a plurality of joint cover support mechanisms 4, and a joint cover device 5 supported by the plurality of joint cover support mechanisms 4. It is covered as shown in FIGS. 1 and 2 so that it can run.

  When the left and right floor frames 3 and 3 are shaken by the earthquake and the joint portion 2 is widened, the center support arm 9 of the plurality of joint cover support mechanisms 4 is connected to the joint cover at the center of the telescopic links 32 and 32 as shown in FIG. While being supported by the support bar 35 at the center of the joint portion 2, the one support arm 7 and the other support arm 8 are slid away from each other, and the dimensions between the joint cover support bars 35 gradually increase. As described above, the movement is performed by the telescopic links 32 and 32 so that the overlap of the joint covers 36 is reduced, and the swinging motion can be absorbed without causing a gap in the joint portion 2.

  When one of the support arms 7 and the other support arm 8 slides away, the support roller 23 attached to the lower end of the one support arm 7 rolls on the guide rail 30 of the central support arm 9. The one support arm roller 28 of the central support arm 9 rolls on the guide rail 22 of the one support arm 7, and the support roller 23 attached to the lower end of the other support arm 8 is a central support arm. 9 Since the roller 29 for the other support arm of the center support arm 9 rolls on the guide rail 22 of the other support arm 8, the center support arm 9 and the one support arm 7 and The other support arm 8 is supported by the two support rollers 23 and 23 and one and the other support arm rollers 28 and 29 when moving in the extending direction. It becomes the state is moved to ensure keeping the horizontal state.

  When the left and right floor frames 3 and 3 are shaken by the earthquake and the joint portion 2 is narrowed, the center support arms 9 of the joint cover support mechanisms 4 are joint covers at the center portions of the telescopic links 32 and 32 as shown in FIG. While being supported by the support bar 35 at the center of the joint portion 2, the one support arm 7 and the other support arm 8 are slid in the direction of near overlap, and the dimensions between the plurality of joint cover support bars 35 are successively narrowed. It can be moved by the telescopic links 32, 32 so as to slide so that the overlap of the plurality of joint covers 36 becomes small, and the swinging motion can be absorbed without causing a gap in the joint portion 2.

  When one of the support arms 7 and the other support arm 8 slides in the direction of close overlap, the support roller 23 attached to the lower end of the one support arm 7 rolls on the guide rail 30 of the central support arm 9. The one support arm roller 28 of the center support arm 9 rolls on the guide rail 22 of the one support arm 7 and the support roller 23 attached to the lower end of the other support arm 8 supports the center. The arm 9 rolls on the guide rail 30 and the other support arm roller 29 of the center support arm 9 rolls on the guide rail 22 of the other support arm 8. 7 and the other support arm 8 are supported by two support rollers 23 and 23 and one and other support arm rollers 28 and 29 when moving in the contraction direction. Has been a state is moved to ensure keeping the horizontal state.

  When the left and right floor casings 3 and 3 are sunk unevenly due to the earthquake, as shown in FIG. 11, as shown in FIG. 11, the mounting bracket 6 that attaches one support arm 7 of a plurality of joint cover support mechanisms 4 to one floor casing 3. It pivots up and down around the pivot shaft 15 and pivots up and down around the pivot shaft 15 of the mounting bracket 6 that attaches the other support arm 8 to the other floor casing 3. Absorbs shaking motion.

  When the left and right floor casings 3 and 3 are swung in different front and rear directions due to an earthquake, a mounting bracket for attaching one support arm 7 of a plurality of joint cover support mechanisms 4 to one floor casing 3 as shown in FIG. 6 shaft 14 rotates in the horizontal direction, and the shaft 14 of the mounting bracket 6 that attaches the other support arm 8 to the other floor case 3 rotates in the horizontal direction to absorb the shaking motion. it can.

[Different forms for carrying out the invention]
Next, different modes for carrying out the present invention shown in FIGS. 14 to 24 will be described. In the description of the different embodiments for carrying out the present invention, the same components as those in the first embodiment for carrying out the present invention are denoted by the same reference numerals, and redundant description is omitted.

  The second embodiment for carrying out the present invention shown in FIGS. 14 to 16 is mainly different from the first embodiment for carrying out the present invention from the height of the joint cover support bar 35 in the central portion. By using joint cover support bars 35a, 35a, 35b, 35b, 35c, and 35c arranged on both sides that are sequentially lowered by the thickness dimension of the joint cover 26, such joint cover support bars 35, 35a, and 35a are used. , 35b, 35b, 35c, and 35c, the joint covers 36, 36, 36, 36, 36, 36, and 36a are attached so as to be sequentially located at the center from both ends, and the joint cover support bar 35 at the center is attached. Uses a central joint cover 36a that overlaps the joint covers 36 and 36 on both sides and protrudes on both sides so as to be slidable.

  Even in the floor joint device 1A using the joint cover device 5A configured as described above, the same effects as those of the first embodiment for carrying out the present invention can be obtained.

  The third embodiment for carrying out the present invention shown in FIGS. 17 to 19 is mainly different from the first embodiment for carrying out the present invention in that one support arm 7 and a central support arm 9 are provided. A stopper 40 comprising a slide groove 38 and a locking piece 39 to be stopped when the arm is extended to the maximum is provided, and the slide groove 38 to be stopped and stopped when the other support arm 8 and the central support arm 9 are extended to the maximum. A plurality of joint cover support mechanisms 4A provided with stoppers 40 including pieces 39 are used, and from the rear end portion of one support arm 7 of the plurality of joint cover support mechanisms 4A to the central portion of the central support arm 9 A fixed-side joint cover 42 whose rear end portion covers the rear portion of one of the support arms 7 by a pivot pin 41, and a tip end side that is substantially half or more of the fixed-side joint cover 42. A floor joint device constructed in this way in that it uses a joint cover device 5B that overlaps and has a movable side joint cover 44 whose rear end is pivotally supported by a pivot pin 43 at the rear of the other support arm 8. It may be 1B.

  The fourth embodiment for carrying out the present invention shown in FIGS. 20 to 24 differs from the first embodiment for carrying out the present invention mainly in that one support arm 7A and the other support arm 8A. A plurality of joint cover support mechanisms 4B, 4B, 4B, and 4B that can be expanded and contracted are arranged so that they face each other, and one support arm body 20 and the other support arm of the joint cover support mechanisms 4B, 4B, 4B, and 4B The parallel maintenance rod support pieces 45, 45 are fixed by welding or the like so as to protrude outward at a portion near the tip of the main body 24, and the pivot pins 46, 46 are respectively attached to the parallel maintenance rod support pieces 45, 45 facing each other. The parallel maintaining rods 47, 47, 4 are pivotally supported at both ends, and maintain the one supporting arm bodies 20, 20 facing each other and the other supporting arm bodies 24, 24 facing each other in parallel. 7 is the floor joint device 1C using the plurality of extendable joint cover support mechanisms 4B, 4B, 4B, and 4B arranged in this manner. The same effect as that of the embodiment of the present invention is obtained, and is maintained in parallel by the parallel maintaining rods 47, 47, 47 pivotally supported at the front ends of the one support arm 7A, 7A and the other support arm 8A, 8A. The support arms 7A, 7A and the other support arms 8A, 8A can be prevented from swinging, and the one support arm 7A, 7A and the other support arm 8A, 8A can be slid and moved more smoothly.

  Note that a gap corresponding to the thickness dimension of the fixed joint cover 42 is formed in a portion of the movable joint cover 44 that does not overlap with the fixed joint cover 42, but it can be used without any problem where a large load is not applied. However, when a large load is applied, it is preferable to use a load support mechanism using a plurality of load support pieces capable of extending and contracting to support the load applied to the movable joint cover 44.

  INDUSTRIAL APPLICABILITY The present invention is used in an industry for manufacturing a floor joint device that covers a space between right and left floor frames provided via joint portions.

1, 1A, 1B, 1C: floor joint device,
2: joint part, 3: housing
4, 4A, 4B: joint cover support mechanism,
5, 5A, 5B: Joint cover device,
6: mounting bracket, L: width dimension of joint,
7, 7A: one support arm, 8, 8A: the other support arm,
9: Center support arm, 10: Center support arm holding mechanism,
11: Screw, 12: Bearing
13: Fixed side bracket, 14: Shaft,
15: pivot axis 16: support part
17: Movable side metal fitting, 18: Shaft hole,
19: support part, 20: one support arm body,
21: Locking rail, 22: Guide rail,
23: support roller, 24: other support arm body,
25: central support arm body, 26: engagement piece,
27: engaging portion,
28: One support arm roller,
29: Roller for the other support arm,
30: guide rail, 31: central pivot pin,
32: telescopic link, 33: central pivot,
34: pivot pin, 35: joint cover support bar,
36: joint joint cover, 37: fixed joint cover,
38: slide groove, 39: locking piece,
40: stopper, 41: pivot pin,
42: Fixed side joint cover, 43: Pivoting pin,
44: Movable side joint cover, 45: Parallel maintenance rod support piece,
46: Pivot pin, 47: Parallel maintenance rod.

Claims (2)

A plurality of extendable joint cover support mechanisms having both ends attached to the floor case on the joint part side of the left and right floor case provided through the joint part at predetermined intervals, and supported by the plurality of joint cover support mechanisms A floor joint device comprising a joint cover device using a joint cover that is attached in a state where at least two tip portions overlap each other, wherein the plurality of joint cover support mechanisms are connected to the one joint portion side floor. One support arm body having a rear end portion attached at a predetermined interval so that the front end portion can be rotated in the vertical and horizontal directions on the housing, and having a dimension less than half of the width dimension of the joint portion, Locking rail formed in a horizontal direction near the upper part of the inner side surface, a guide rail formed in a horizontal direction at a lower position of the locking rail, a lower part of the tip of the inner side surface of the one support arm body A plurality of support arms each having a support roller attached to the other portion, and a rear end portion is attached to the other joint joint side floor frame at a predetermined interval so that the front end portion can be rotated vertically and horizontally. And the other support arm body having a dimension less than half the width dimension of the joint portion, a locking rail formed in a horizontal direction at a position near the upper portion of the inner side surface of the other support arm body, and the locking rail A plurality of other support arms comprising a guide rail formed in a horizontal direction at a lower position of the first support arm, and a support roller attached to a lower portion of the tip of the inner side surface of the other support arm main body. the engagement piece to engage respectively with the locking rail from above the support arm and the other support arm and the engaging portion which engages the lower end and the lower each of the one supporting arm and the other support arm And, and the central support arm body is less than half the dimension of the width of the joint portion, attached to the one support arm of the central support arm body, while rolling guides on the rails of the one support arm A supporting arm supporting roller, the other supporting arm supporting roller attached to the other supporting arm side of the central supporting arm main body and rolling on the guide rail of the other supporting arm, and the one supporting arm A plurality of central support arms comprising a pair of guide rails formed on both side surfaces of the central support arm body on which the support roller and the support roller of the other support arm roll, and the plurality of central support arms A central support arm holding device that is located at the center of the joint or prevents the one support arm and the other support arm from falling off. A floor joint apparatus characterized by comprising the above. The plurality of extendable joint cover support mechanisms are arranged so that one support arm and the other support arm of the plurality of extendable joint cover support mechanisms face each other, and the one support arm and the other support that face each other. 2. The floor joint device according to claim 1, wherein a parallel maintaining rod for maintaining the end portions of the arms in parallel is pivotally supported.

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