JP2011226150A - Joint device for floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint device for a floor which can provide sufficient strength, absorb different lengthwise and horizontal shaking motions of right and left floor skeletons, and absorb expansion shaking motions by a width of a joint part.SOLUTION: The joint device for a floor 1 comprises; right and left support recesses 4 formed on an upper surface of right and left floor skeletons 3 on a joint part 2 side; center maintenance mechanisms 6 installed so that the center part is constantly set at the center part of the joint part 2; a support arm 8 pivotally supported on the center part of the center maintenance mechanisms 6; bearing rails 10 pivotally supported on the support recesses 4 by pivot pins 9; a beam 12 installed in the bearing rails 10 to be slidable; joint plate support arms 13 supported by the beam 12 and the bearing rails 10 at a predetermined interval; joint plates 15 and a center joint plate 18 installed in the joint plate support arms 13; and pantograph-like expansion/contraction link mechanisms 21 which position the joint plate support arms 13 to be constantly at a predetermined interval.

Description

  The present invention relates to a floor joint device that extends between a left and right floor frame provided via a joint portion in an extendable manner.

  Conventionally, in this type of floor joint device, a plurality of joint plate support arms are arranged at a predetermined interval between joint portions, and the joint plate support arms at portions other than the central portion of the joint plate support arms are outward. A plurality of joint plates that protrude and overlap with adjacent members are fixed, and a central joint plate that overlaps the joint plates that are adjacent at both ends to the joint plate support arm in the central portion is used.

The floor joint device constructed in this way has the disadvantage that it is difficult to obtain sufficient strength because both ends are attached to the left and right floor frames on the joint portion side, and the load is concentrated.
In addition, since a large number of joint plate support arms are located between the joint portions, it is impossible to shrink the entire width of the joint portion, and it is impossible to set a large amount of swinging of the left and right floor frame. .

Japanese Patent No. 3691778

  In view of the above-mentioned conventional drawbacks, the present invention can obtain sufficient strength, can absorb different back-and-forth swinging motions of the left and right floor frame, and can expand and contract by the width of the joint. The object is to provide a floor joint device that can be absorbed.

  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 left and right supporting recess formed on the upper surface of the left and right floor casings provided through the joint section, and a center of the left and right floor casings on the joint section side. At least two or more central maintenance mechanisms attached so that a part is always located in the center part of a joint part, a support arm pivotally supported by the center part of this central maintenance mechanism, and the said right and left support recessed parts at predetermined intervals A plurality of pairs of receiving rails that are pivotally supported by pivot pins on the opposite joint side, and a center that is slidably attached to the plurality of pairs of receiving rails and that is substantially the same upper surface as the plurality of pairs of receiving rails A plurality of girders whose portions are pivotally supported by the support arm, a plurality of joint plate support arms supported by the plurality of girders and the plurality of pairs of receiving rails at predetermined intervals, and the plurality of joint plates Joint joint in the center of the support arm The rear end portion is fixed to the other joint plate support arms excluding the gate support arm, and the tip portion overlaps with the left and right floor frame on the outside or the adjacent member, and is approximately double the width dimension between the joint plate support arms. A plurality of joint plates, and a joint plate supporting arm at the central portion, the central portion of which is attached to the joint plate supporting arm adjacent to the joint plate supporting arm of the central portion, and a substantially central portion of the joint plate. A central joint plate that covers the joint plate so as to be positioned at a portion, and at least two or more joint members supported at the side walls of the left and right support recesses at both ends for positioning the joint joint support arms at regular intervals. The joint device for floors is comprised with the pantograph-shaped expansion-contraction link mechanism.

As is clear from the above description, the present invention has the following effects.
(1) According to claim 1, a plurality of pairs of receiving rails are provided in the left and right support recesses formed on the upper surfaces of the left and right floor casings on the joint side, and the plurality of girders are slidable on the plurality of pairs of receiving rails A plurality of joint plates and a central joint plate are provided on a plurality of joint plate support arms supported by the plurality of girders and the plurality of pairs of receiving rails at a predetermined interval. The load applied to the plate and the central joint plate can be supported by the support recesses of the left and right floor frames.
Therefore, sufficient strength can be obtained as compared with the conventional case where both ends are attached to the joint portions of the left and right floor frames.
(2) According to the above (1), the plurality of joint plates and the central joint plate are attached to the plurality of joint plate support arms. The support arm moves onto the left and right support recesses to absorb the shaking movement.
Therefore, the swinging motion of the left and right floor frames corresponding to the width dimension of the joint portion can be absorbed without damage.
(3) According to the above (1), even if the left and right floor frames are swayed in different front / rear / left / right directions, the swaying motion can be absorbed without being damaged or creating a gap.
(4) Claim 2 can obtain the same effects as in the above (1) to (3), and can efficiently absorb the swinging motions in different directions corresponding to the width dimension of the joint portion.

The top view of the 1st form for carrying out the present invention. Sectional drawing which follows the 2-2 line of FIG. Explanatory drawing of the attachment state of a several pair receiving rail and several girder. The operation | movement explanatory drawing of the different left-right direction of FIG. Operation | movement explanatory drawing of the different front-back direction of FIG. Explanatory drawing of the attachment state of several joint plate support arms. The operation | movement explanatory drawing of the different left-right direction of FIG. The operation | movement explanatory drawing of the different front-back direction of FIG. Explanatory drawing of the center maintenance mechanism of the 1st form for implementing this invention. Explanatory drawing of the center joint plate of the 1st form for implementing this invention. The operation explanatory view in which the joint part of the 1st form for carrying out the present invention became narrow. Operation | movement explanatory drawing which the joint part of the 1st form for implementing this invention became wide. The operation | movement explanatory drawing of 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. FIG. 15 is a sectional view taken along line 15-15 in FIG. 14; Explanatory drawing of the center maintenance mechanism of the 2nd form for implementing this invention. The top view of the 3rd form for carrying out the present invention. FIG. 18 is a sectional view taken along line 18-18 in FIG. 17; Explanatory drawing of the receiving rail and girder of the 3rd 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, 1 is a floor joint of the present invention that covers a space between left and right floor frames 3, 3 provided via a joint portion 2 in an extendable manner. The floor joint device 1 includes left and right support recesses 4 and 4 having substantially the same width as the width L of the joint 2 formed on the upper surfaces of the left and right floor casings 3 and 3 on the joint 2 side. And at least two or more central maintenance mechanisms 6 and 6 attached to the left and right floor frames 3 and 3 on the joint portion side so that the central pivot portion 5 of the central portion is always positioned at the central portion of the joint portion 2; The support arm 8 pivotally supported by the pivot pins 7 and 7 on the central pivot portions 5 and 5 of the central maintenance mechanisms 6 and 6 and the joint portion side pivoted at predetermined intervals in the left and right support recesses 4 and 4. Plural pairs of hat-shaped steel-shaped receiving rails in which the end portions pivotally supported by the pins 9 and 9 are located up to the end portion of the joint portion 2 0 and 10 and the plurality of pairs of receiving rails 10 and 10 are slidably attached to the plurality of pairs of receiving rails 10 and 10 and are substantially flush with the upper surfaces of the receiving rails 10 and 10. A plurality of girders 12 that are centrally supported by the support arm 8 with a pivot pin 11, and the plural girders 12 and the plurality of pairs of receiving rails 10, 10. An odd number of joint plate support arms 13, 13, 13, 13A, 13, 13, 13 supported at predetermined intervals, and a plurality of joint plate support arms 13, 13, 13, 13A, 13, 13, The rear end portion is fixed to the other joint plate support arms 13, 13, 13, 13, 13, 13 except for the joint plate support arm 13 </ b> A located at the center portion of 13, and the front end portion is outward. To the left A plurality of joint plates 15, 15, 15, 15, 15, 15 having a width approximately double between joint plate support arms 13, 13 overlapping on or adjacent members of the floor frame 3, 3; A joint bar is attached to the joint plate support arm 13A by a plurality of screws 17 at a support bar 16 (see FIG. 10) fixed to the bottom surface of the substantially central part, and both joints are adjacent to the joint plate support arm 13A in the central part. A central joint plate 18 covering the joint plates 15 and 15 fixed to the plate support arms 13 and 13 so as to be positioned at a substantially central portion, and the plurality of joint plate support arms 13, 13, 13, 13A, 13, 13 A plurality of both end portions that are positioned so as to be always at a predetermined interval are pivotally supported by pivot pins 19, 19 on the side walls 4 a, 4 a of the left and right support recesses 4, 4, In this embodiment, it is composed of at least two or more pantograph-shaped telescopic link mechanisms 21 and 21 each having eight square frame-shaped links 20, 20, 20, 20, 20, 20, 20, 20. .

  Metal base plates 22 and 22 are fixed to the bottom surfaces of the left and right support recesses 4 and 4 with a plurality of countersunk screws 23 so that the plurality of pairs of receiving rails 10 and 10 can be smoothly rotated. Yes.

  The center maintaining mechanisms 6 and 6 are a pair of racks 25 whose rear end portions are attached to the left and right floor frames 3 and 3 on the joint portion side so that the front end portions can be rotated in the horizontal direction by pivot pins 24 and 24. 25, a pair of racks 25, 25 and a pinion 26 that meshes with the center of the joint 2 and a pivot pin 27 that rotatably supports the pinion 26 and pivotally supports the support arm 8. And a support member 28 that supports the racks 25 and 25 so as to keep the engagement with the pinion 26.

  The at least two or more pantograph-shaped expansion / contraction link mechanisms 21, 21 are square pivot-like links 20, 20, 20, 20, 20, 20, 20, 20. 29, 29, 29, 29, the pivot pins 30, 30, 30, 30, 30, 30, 30 are attached to the side walls 4 a, 4 a and the joint plate support arms 13, 13, 13, 13 A, 13, 13, 13. , 30.

  In the floor joint device 1 having the above-described configuration, the left and right support recesses 4 and 4 and the joint portion 2 formed in the left and right floor casings 3 and 3 are usually the joint plates 15, 15, 15, 15, 15, 15 and the center. It is covered with the joint plate 18 so that people and carts can travel safely.

  When the left and right floor frames 3 and 3 are swung so that the joint portion 2 becomes narrow due to the earthquake, the support arm 8 is maintained at the center portion of the joint portion 2 by the central maintenance mechanisms 6 and 6 as shown in FIG. The overlap between the plurality of girders 12 and the plurality of pairs of receiving rails 10 and 10 increases, and the joint plate support arms 13, 13, 13, 13 A, 13, 13, 13 are narrowly spaced by the telescopic link mechanisms 21, 21. Therefore, the plurality of joint plates 15, 15, 15, 15, 15, 15 and the central joint plate 18 are in a contracted state in which the overlapping amount is increased, and absorbs the shaking motion.

  When the left and right floor frames 3 and 3 are swung so that the joint part 2 is widened by an earthquake, the support arm 8 is maintained at the center part of the joint part 2 by the central maintenance mechanisms 6 and 6 as shown in FIG. The overlap between the plurality of girders 12 and the plurality of pairs of receiving rails 10 and 10 is reduced, and the joint plate support arms 13, 13, 13, 13 A, 13, 13, 13 are spaced apart by the telescopic link mechanisms 21, 21. Since the plurality of joint plates 15, 15, 15, 15, 15, 15, and the central joint plate 18 are in an extended state with a small amount of overlap, they absorb the shaking movement. .

  When the left and right floor frames 3 and 3 are swung in different front and rear directions in an earthquake, the plurality of pairs of receiving rails 10 and 10 are pivoted about the pivot pins 9 and 9 by the plurality of girders 12 as shown in FIG. At the same time, the telescopic link mechanisms 21 and 21 are also rotated about the pivot pins 30 and 30 at both ends, and the plurality of joint plates 15, 15, 15, 15, 15 and 15 and the central joint plate 18 are sequentially moved in the front-rear direction. It is arranged in an inclined state to absorb the shaking movement.

[Different forms for carrying out the invention]
Next, different modes for carrying out the present invention shown in FIGS. 14 to 19 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 in that a plurality of channel-shaped receiving rails 10A and 10A. And a slide member 31 fixed to the bottom surface of the plurality of girders 12 supported by the plurality of pairs of receiving rails 10A and 10A, and a square frame-shaped link 32, 32 having two pantograph-shaped centers. With the use of the maintenance devices 6A and 6A, the floor joint device 1A configured as described above can obtain the same operational effects as those of the first embodiment for carrying out the present invention.

  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 the bottom surfaces of a plurality of pairs of receiving rails 10 and 10 are different. In addition to fixing the sliding members 31 and 31, the floor joints configured in this way are provided with a plurality of rollers 33 installed on the bottom surfaces of the plurality of girders 12 or the inner bottom surfaces of the plurality of pairs of receiving rails 10 and 10. Even with the apparatus 1B, the same effect as the first embodiment for carrying out the present invention can be obtained.

  In each of the embodiments for carrying out the present invention, the seven joint plate support arms 13 are supported on the plurality of pairs of receiving rails 10 and 10 and the plurality of girders 12 at predetermined intervals. However, the present invention is not limited to this, and the present invention can be similarly implemented by using an odd number of joint plate support arms 13.

  In each of the embodiments for carrying out the present invention, at least two or more central maintenance mechanisms have been described using a pair of racks 25, 25 and a nion 26 and using a pantograph shape. However, the configuration is not limited to this, and any configuration may be used as long as the support arm 8 can always be positioned at the center of the joint. The mounting positions of both ends are preferably directly attached to the left and right floor frame on the joint side, but the left and right floor frames such as slabs and beams protruding from the joint side of the left and right floor frame to the joint You may attach to the member which moves integrally.

  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: floor joint device, 2: joint portion,
3: floor frame, L: width dimension of joint part,
4: support recess, 5: central pivot,
6, 6A: central maintenance mechanism, 7: pivot pin,
8: support arm, 9: pivot pin,
10: receiving rail, 11: pivot pin,
12: Digit,
13, 13A: Joint plate support arm,
14: Screw, 15: Joint plate,
16: Support bar, 17: Screw,
18: central joint plate, 19: pivot pin,
20: Link, 21: Telescopic link mechanism,
22: ground plate, 23: countersunk screw,
24: pivot pin 25: rack
26: pinion, 27: pivot pin,
28: support member, 29: central pivot,
30: pivot pin, 31: sliding material,
32: Link, 33: Roller.

Claims (2)

The left and right support recesses formed on the upper surface of the left and right floor casings provided through the joint section, and the center section of the left and right floor casings on the joint section side are always located at the center of the joint section. At least two or more central maintenance mechanisms mounted in this manner, a support arm pivotally supported at the central part of the central maintenance mechanism, and a pivot pin on the opposite joint side at a predetermined interval in the left and right support recesses A plurality of receiving rails, and a plurality of receiving rails mounted on the plurality of pairs of receiving rails so as to be slidably movable. A plurality of girders, a plurality of joint plate support arms supported at a predetermined interval by the plurality of girders and the plurality of pairs of receiving rails, and a joint plate support arm at the center of the plurality of joint plate support arms. Excluding other joint joints A plurality of joint plates having a double width between joint plate support arms, the rear end portion of which is fixed to the support arm and the front end portion overlaps with the left and right floor casings on the outer side or adjacent members; A center joint that covers the joint plate so that the center part is attached to the joint plate support arm that is fixed to the joint plate support arm that is adjacent to the joint plate support arm of the center part. A plate, and at least two pantograph-shaped telescopic link mechanisms in which both end portions for positioning the plurality of joint plate support arms at regular intervals are pivotally supported on the side walls of the left and right support recesses. A floor joint device characterized by that. The width dimension of the left and right support recesses is formed to be substantially the same as the width dimension of the joint part, and the plurality of girders supported by the plurality of pairs of receiving rails are formed to be twice the width dimension of the joint part. The floor joint device according to claim 1, wherein

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