JP6472484B2 - Central maintenance member for joint devices - Google Patents

Description

  The present invention is used in a joint device that closes joint portions between casings provided via joint portions, and relates to a central maintenance member for joint devices in which joint plates, joint plate mounting members, and the like are always located at the center of the joint portion. .

  Conventionally, as a central maintenance mechanism that always places the joint plate of the joint device that closes the joint portion between the ceiling and the wall surface at the center portion of the joint portion, the rear end portion is pivotally supported by the left and right floor frames on the joint portion side. A pair of racks mounted so that the tip end thereof can be rotated in the horizontal direction by pins, a pinion that meshes with the pair of racks and a center portion of the joint portion 2, and the pinion are rotatably supported. There is known a “central maintenance mechanism” which is provided with a pivot pin for pivotally supporting an arm and is configured by a support member which supports the rack so as to keep meshing with the pinion (for example, Patent Document 1). .

 However, in such a center maintaining mechanism, there is a possibility that the meshing state of the rack and the pinion is released when the assumed swinging movement width due to the earthquake is larger than the width of the joint portion. Specifically, when the width of the joint portion is 1440 mm and the swinging width of the left and right chassis is 500 mm, the length of the rack is 940 mm, which is the difference between the width of the joint and the swinging motion width of the chassis. This is because when the length of the rack is further increased, the casing collides with the protruding end portion.

  In addition, since the shaking movement width of the frame is 500 mm, the width of the joint is 1940 mm at the maximum in the event of an earthquake, whereas the length of the rack is 940 mm, so the length of a pair of racks is simply added. However, when the joint becomes wide due to an earthquake, the meshing state between the pair of racks and the pinion is released, and the function cannot be exhibited.

  In addition, when a pantograph having a large number of pivots is used as the central maintenance mechanism, the center part of the pantograph is displaced from the central part of the joint by the play between the pivots, although it can follow the shaking movement of the frame. End up.

JP 2011-226150 A

  In view of the above-described conventional drawbacks, the present invention does not release the meshing state of the rack and the pinion (gear) even when the joint portion is significantly widened by an earthquake, and the joint plate or the like. It aims at providing the center maintenance member for joint devices which can always be located in the center of a joint part.

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, a central maintenance member for a joint device according to the present invention is a central maintenance member for a joint device used in a joint device that closes joint parts of left and right housings. A pair of racks respectively attached to the chassis, a plurality of large gears provided at predetermined intervals in the left and right chassis directions so as to mesh with the pair of racks, and between the large gears A plurality of small gears provided so as to mesh with each other, and the pair of racks and the large gears are supported so that they are always meshed with each other, and a central portion thereof is always located in the middle of the joint portion. And joint plate mounting means provided at the center of the support member ,
Either the large gear or the small gear is disposed at the center of the support member, and the joint plate mounting means is provided on the same axis as the central axis of the large gear or the small gear disposed at the center. It has been .

As is clear from the above description, the present invention has the following effects.
(1) In the first aspect of the present invention, since a plurality of large gears having a predetermined interval in the left and right housing directions are provided, even if the joint portion becomes wide, Since the large gear and the rack are meshed with each other, it is possible to reliably prevent the rack from being meshed and released.
(2) Since a small gear that meshes with the large gear is provided between the plurality of large gears, for example, even if the meshing state of the central large gear and the rack is released, the large gear is small. Since it is meshed with the gear, it can be rotated in conjunction with another large gear meshed with the rack.
Therefore, the shaking motion due to the earthquake is suppressed, and when the rack returns to the normal position, the rack and the central large gear can be smoothly returned to the meshing state.
(3) In the invention according to claim 2, the same effects as in the above (1) to (2) can be obtained, and the large gear can be arranged efficiently.
(4) In the invention according to claim 3, the same effects as in the above (1) to (3) can be obtained, and even if the left and right chassis are swung in different front and rear directions due to the earthquake, the wobbling movement Can be absorbed.

1 to 9 are explanatory views showing a first embodiment of the present invention.
10 to 13 are explanatory views showing a second embodiment of the present invention.
The top view of the center maintenance member for joint devices of 1st Embodiment. The partially broken theory top view of the center maintenance apparatus for joint devices. Operation | movement explanatory drawing of the center maintenance apparatus for joint devices. The top view of a use condition. FIG. 5 is a sectional view taken along line 5-5 of FIG. Operation | movement explanatory drawing from planar view of the state where the joint part became narrow by the earthquake. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. Operation | movement explanatory drawing from the planar view of the state where the joint part became wide by the earthquake. FIG. 9 is a cross-sectional view taken along line 9-9 in FIG. 8. The top view of the center maintenance member for joint devices of a 2nd embodiment. The partially broken theory top view of the center maintenance apparatus for joint devices. The top view of a use condition. 12-12 sectional view taken on the line of FIG.

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. 9, 1 is used for a joint device 5 installed between one housing 3 and the other housing 4 provided through a joint portion 2. The floor joint plate 6 and the joint plate mounting member are the central maintenance member for joint devices that always positions the center of the joint portion 2.

  The left-right direction is the left-right direction in FIG. 4, the front-rear direction is the up-down direction in FIG. 4, and the up-down direction is the up-down direction in FIG.

  Further, in the present invention, the frame means a building on which joint plates such as buildings, roads, slabs, elevator shafts and the like can be installed, and the entrance / exit is not only an entrance / exit provided with doors and doors, but also people, vehicles, etc. It also includes a passage that can be accessed.

  The center maintenance member 1 for the joint device is attached to the left and right housings 3 and 4, respectively, and a pair of racks 8 having tooth portions 7 formed on one side surface thereof, and the tooth portions 7 of the pair of racks 8, respectively. A plurality of large gears 9 that are meshed with a predetermined interval in the left and right housing directions, and in this embodiment, five large gears 9 are meshed with the large gears 9 and provided between the large gears 9, respectively. A plurality of small gears 10, a pair of racks 8, and a large gear 9 are supported so that they are always in mesh with each other, and a support member 11 whose central portion is always located approximately in the middle of the joint 2. It consists of

The pair of racks 8 are attached to either one of the left and right housings 3 and 4 via attachments 12 at their attachment base end portions 8a. Each of the pair of racks 8 has tooth portions 7 that mesh with the large gear 9 on one side surface in the front-rear direction, and these tooth portions 7 are respectively formed on surfaces facing the pair of racks 8. Yes. Therefore, for example, as shown in FIG. 2, the plurality of large gears 9 are engaged with each other while being sandwiched between the pair of racks 7.
Further, the pair of racks 7 are provided in a rotationally symmetrical manner in a horizontal state with the central portion of the support member 11 shown in FIG.

  A central shaft 13 is provided at the center of the large gear 9, and the central shaft 13 is rotatably attached to a support member 11 described later.

  On the outer periphery of the large gear 9, teeth 14 that mesh with the teeth 7 of the rack 8 are formed. The teeth 14 of the plurality of large gears 9 are formed to have the same number of teeth. In this embodiment, five large gears are provided. Inside the support member 11, the large gear 9, the small gear 10, the large gear 9, the small gear 10, and the large gear 9 (central large gear 9 a are arranged from the end. ), Small gear 10, large gear 9, small gear 10, and large gear 9 are arranged in this order. That is, the large gears 9 and the small gears 10 are alternately arranged, and the small gears 10 are in mesh with the large gears 9 on both sides while not meshing with the teeth 7 of the rack 8.

  A central shaft 13 is also provided at the center of the small gear 10, and the central shaft 13 is rotatably attached to a support member 11 described later.

  The teeth 15 of the small gear 10 adjacent to the teeth 14 of the large gear 9 are always meshed. Further, the teeth 15 of the plurality of small gears 10 are also formed to have the same number of teeth. The teeth 15 of the small gear 10 are sized so as not to mesh with the teeth 7 of the rack at all while meshing with only the teeth 14 of the large gear 9. In this way, a plurality of large gears can rotate, and even if the meshing state of the central large gear 9 a and the rack 8 is released, the central large gear 9 a is moved by the small gear 10 to the other large gear 9. Rotation is transmitted and the motor rotates in the same manner as when engaged with the rack 8. Since the large gear 9 that is not meshed with the rack 8 can also be rotated in this manner, the position of the teeth 14 is deviated from the initial state when returning to the meshed state with the rack 8, and the tooth portion 7 of the rack 8. And the like can be prevented, and the meshing state can be smoothly restored.

  By the way, the reduction ratio (speed increase ratio) of the large gear 9 and the small gear 10 can be set arbitrarily. Since the number of teeth of the plurality of large gears 9 is the same and the number of teeth of the plurality of small gears 10 is the same, even if the reduction ratio (speed increase ratio) of the large gear 9 and the small gear 10 is increased or decreased, When the central large gear 9 makes one rotation, this rotation is transmitted at an increased speed according to the speed increasing ratio by the adjacent small gear 10 and further decelerated to the adjacent large gear 9 according to the speed reducing ratio. This is because the rotation of the large gear 9 at the center is the same as the rotation of the large gears at both ends.

  For example, as shown in FIG. 2, the support member 11 is formed in a box shape with both side surfaces open, and a pair of racks 8 are inserted through the openings 16 on both side surfaces. Further, inside the support member 11, the central shaft 13 of the large gear 9 and the small gear 10 is engaged, and the large gear 9 and the small gear 10 are rotatably mounted.

  A large gear 9 and a small gear 10 are provided on the support member 11, and a pair of racks 7 are provided so as to mesh with the large gear 9 and so that the central portion of the central large gear 9 a is located at the center of the joint portion 2. Thereby, even if the joint part 2 is wide and narrow, the central shaft 13a of the central large gear 9a is always located at the center part of the joint part 2.

  By the way, on the same axis as the central shaft 13a of the central large gear 9a, there is provided mounting means 17 for mounting the floor joint plate 6 and joint plate mounting members. In the present embodiment, a shaft-shaped mounting pin 17 is provided as the mounting means 17, and a protruding end portion of the mounting pin 17 is fixed to the joint plate 6, the joint plate mounting tool or the like.

  Next, the case where the joint plate center maintaining device 1 is used for the joint device 5 will be described with reference to FIGS. 4 to 9. In the present embodiment, a case where it is used for a floor joint device 5 will be described.

  The floor joint device 5 using the center maintenance member 1 for joint devices according to the present invention includes a plurality of the joints fixed to the left and right housings 3 and 4 respectively, and in the present embodiment, four center devices for joint devices. The maintenance member 1, the joint plate 6 attached to the attachment means 17 (attachment pin 17) provided at the central portion of the center maintenance member 1 for the joint device, and the floor surfaces of the left and right housings 3 and 4, respectively, in the vertical direction And a pair of cover plates 18 provided so that the upper surface thereof is substantially flat with the upper surface of the joint plate 6.

The joint plate 6 is a rectangular metal plate, and the mounting pin 17 is attached to the center portion in the left-right direction, and the center portion in the left-right direction is always located at the center of the joint portion 2.
Further, a push-up inclined surface 19 that pushes the cover plate 18 upward is formed at the left and right ends of the joint plate 6.

  The cover plate 18 is a rectangular metal plate, and is provided on a concave plate support 20 formed on the floor of the left and right housings 3 and 4 so as to be movable in the vertical direction. The plate support portion 20 is formed to have substantially the same depth as the thickness of the cover plate 18, whereby the upper surface of the joint plate 6, the upper surface of the cover plate 18, and the floor surfaces of the left and right housings 3 and 4 are substantially flat. It becomes.

A pin insertion hole 21 is formed in the plate support 20, and a pin 22 provided near the end of the cover plate 18 on the housing side is inserted into the pin insertion hole 21.
The length of the pin 22 is formed so as to be longer than the thickness of the cover plate 18.

  A climbing inclined surface 23 corresponding to the push-up inclined surface 19 is formed at an end portion of the cover plate 18 on the joint portion side.

  When the left and right housings 3 and 4 are swung in the left and right direction and the joint portion 2 becomes narrow due to the earthquake, the climbing inclined surfaces 23 of the pair of left and right cover plates 18 are pushed up and tilted by the joint plate 6 as shown in FIGS. It is pushed upward by the surface 19 and absorbs the shaking movement caused by the earthquake. When the frame 3 and 4 are swung in the horizontal direction due to the earthquake and the joint portion 2 is widened, the joint plate 6 and the cover plate 18 are separated from each other as shown in FIGS. , Automatically return to the original state.

  The center maintaining member 1 for the joint device moves in a direction in which the pair of racks 8 are separated from each other, and the large gear 9 and the small gear 10 rotate to absorb the shaking motion. At this time, the front end portions of the pair of racks 8 are released from meshing with the central large gear 9a, but at least meshed with the large gears 9 provided near both side portions of the support member 11, The rack 8 will not fall off.

  Further, since the large gear 9a in the central portion is rotated by the small gear 10 in conjunction with the other large gears 9, when the width of the joint portion 2 returns to the normal state, the pair of racks 8 can be smoothly connected. The meshing state can be restored.

By the way, although the joint plate 6 and the cover plate 18 are separated from each other, since the plate support portion 27 is located in this gap, only a step corresponding to the thickness of the joint plate 6 and the cover plate 18 is generated for a short time. 2 does not open.
In this embodiment, the mounting end of the rack 7 is fixedly attached to the left and right housings 3 and 4, respectively. However, the mounting end of the rack 7 can be rotated in the front-rear direction. You may attach to the housings 3 and 4. FIG.

[Different forms for carrying out the invention]
Next, different modes for carrying out the present invention shown in FIGS. 10 to 13 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. 10 to 13 is mainly different from the first embodiment for carrying out the present invention in that the mounting base end portions 8a of the pair of left and right racks 8 are the same. Is attached to any one of the left and right housings 3 and 4 via a fixture 12A, and is a central maintenance member 1A for a joint device using three large gears 9 and two small gears 10. Even if it is such a center maintenance member 1A for joint devices, the same operation effect as the 1st form for carrying out the above-mentioned present invention can be acquired.

In this embodiment, three large gears 9 and two small gears 10 are used, and the large gears 9, the small gears 10, the central large gear 9a, the small gears 10, and the large gears 9 are alternately arranged in this order. ing.
In the present embodiment, the center maintenance member 1A for joint devices is used in a joint device 5A (floor joint device) using a shallow plate-shaped joint plate 6A.

  The joint plate 6A includes a shallow plate-shaped joint plate main body 24, a filling member 25 such as mortar or concrete filled in the joint plate main body 24, and a tile such as marble pasted on the upper surface of the filling member 25. And a floor decorative plate 26 such as a brick, and a cover plate 28 provided on the left and right ends of the joint plate body 24 via hinge members 27.

  In the joint plate 6A, the mounting pin 17A of the joint maintenance center member 1A is fixed to the center in the left-right direction. In the present embodiment, the mounting pin 17A also serves as the central shaft 13a of the central large gear 9a and is provided so as to be movable in the vertical direction.

  Moreover, the joint plate support part 29 in which this joint plate 6A is installed is formed in a right-and-left housing. An inclined surface 30 is formed at the end portion of the joint plate support portion 29. When the joint portion 2 becomes narrow due to an earthquake, the joint plate 6A rises upward by the inclined surface 30.

  In the embodiment of the present invention, what is used for a floor joint device has been described. However, the floor joint device may be used as a central maintenance member of a wall joint device or a ceiling joint device. You may use for the joint device for floors of another well-known structure.

  In the embodiment of the present invention, the attachment plate is directly attached to the attachment pin provided coaxially with the central axis of the pinion as the attachment means. However, as in Patent Document 1, the attachment for attaching the joint plate is described. A member (support arm) may be attached to the attachment pin to serve as attachment means.

  Further, in the embodiment of the present invention, the case where the large gears are arranged at the central portion and both end portions of the support member has been described, but the present invention is not limited to this, and for example, a small portion is provided at the central portion of the support member. Gears may be arranged.

  The present invention is utilized in the industry of manufacturing central maintenance devices for joint plates.

1, 1A: Central maintenance device for joint plate,
2: joints, 3: one housing,
4: the other housing, 5, 5A: joint device,
6, 6A: Joint plate, 7: Teeth,
8, 8A: Rack, 9: Large gear,
10: small gear, 11: support member,
12, 12A: fixture, 13: central axis,
14: Teeth 15: Teeth
16: opening, 17, 17A: attachment means,
18: Cover plate, 19: Push-up inclined surface,
20: Plate support part, 21: Pin insertion hole,
22: Pin, 23: Riding slope,
24: Joint plate body, 25: Filling member,
26: Floor decorative board, 27: Hinge member,
28: Cover plate, 29: Joint plate support,
30: Inclined surface.

Claims (3)

In the center maintenance member for joint device used in the joint device for closing the joint portion of the left and right housings, the center maintenance member for joint devices is respectively engaged with the pair of racks attached to the housing and the pair of racks. A plurality of large gears provided at predetermined intervals in the left and right housing directions, a plurality of small gears provided so as to be respectively engaged between the large gears, and the pair of racks And the large gear are always supported so as to be meshed with each other, and a center member thereof is always located in the middle of the joint portion and a joint plate mounting means provided at the center portion of the support member. It is,
Either the large gear or the small gear is disposed at the center of the support member, and the joint plate mounting means is provided on the same axis as the central axis of the large gear or the small gear disposed at the center. central maintenance member for joint device being. 2. The central maintenance member for a joint device according to claim 1, wherein the large gear is disposed at least near a central portion and both end portions of the support member. The center maintaining member for a joint device according to any one of claims 1 and 2, wherein the pair of racks are attached to the housing so that attachment base end portions thereof are respectively rotatable.

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