JP3116981U - Floor level holding mechanism - Google Patents

Abstract

An object of the present invention is to automatically close a top surface of a concave groove provided on a side of an opening portion of a chamber when a door body for closing the opening portion of the chamber is moved so that the weight is made flush with the floor level of the chamber and the ground surface. Provided is a floor level holding mechanism that makes it safe and easy for objects to enter and exit.
When a door body 200 is moved to the open side, a chain 11 connected thereto is moved, and a support plate body 4 and a roller 5 held by the chain 11 via a support piece 6 are moved to the support plate 7. It moves to the upper surface side of this, and it will be in the state which plugs up the upper surface of the ditch | groove 400. FIG.
[Selection] Figure 2

Description

  The present invention relates to a floor level holding mechanism for making the upper surface of the recessed groove formed on the lower surface of the opening and closing place of the door body of the room the same as the floor level of the room during the opening and opening of the door body, In particular, the present invention relates to a floor level holding mechanism that is automatically formed in synchronism with the opening / closing operation of the door body, can operate smoothly, and has good handleability.

As schematically shown in FIG. 6, the chamber 300 is provided with a door body 200 that blocks this open side. The door 300 is opened and closed by opening and closing the door body 200. In order to ensure the blocking of the chamber 300 by the door body 200, the door body 200 is in close contact with the protruding portion 29 fitted into the chamber 300 and the outer wall surface 30 of the chamber 300 as shown in the figure to ensure the sealing of the chamber 300. A stepped portion 31 is formed. The floor level 32 of the chamber 300 is flush with the ground surface 28, but since the door body 200 has the stepped portion 31, a concave groove 400 needs to be formed between the chamber 300 and the ground surface 28. The groove 400 needs to have a dimension in which the groove depth (h) is slightly higher than the height of the stepped portion 31, and the vertical width (a) has a dimension that is longer than the length by which the protrusion 29 is removed from the chamber 300. is necessary. Further, although not shown in the figure, the groove length of the concave groove 400 is required to be about twice as long as the full width of the door body 200. FIG. 7 is a schematic view showing a state when the door body 200 is opened. The door body 200 first moves in the direction of the vertical width (a) of the concave groove 400 as shown in FIG. After moving so as to escape from the groove 400, the groove 400 moves in the groove length direction. Thereby, as shown in FIG. 8, a heavy object (for example, a car 9) or the like can enter and exit the chamber 300. On the other hand, as a publicly known document relating to the door for blocking the front surface of the heating chamber, there is “Patent Document 1”. As shown in FIG. 1, the lower surface side of this door (3) is below the ground surface, and the same as described above. It is necessary to form a groove in the groove.
Japanese Patent Laid-Open No. 2000-97441 (FIG. 1)

  As described above, the chamber 300 needs the concave groove 400 for moving, opening and closing the door body 200. On the other hand, when the concave groove 400 is present, the concave groove 400 in the front surface of the chamber 300 is exposed when the door body 200 is opened, and there is a problem that the vehicle 9 cannot smoothly enter and exit. Therefore, when the door 200 is opened, it is necessary to provide the closing body 33 on the upper surface of the groove 400 as shown in FIG. 9 so that the floor level 32 of the chamber 300 and the ground surface 28 are flush with each other. Although this closing body 33 may be arbitrary, in order to efficiently and safely move the vehicle 9 and the like in the chamber 300, the closing of the concave groove 400 by the closing body 33 is required to open and close the door body 200. It is necessary to be able to perform smoothly and reliably in synchronism with the operation, and that the closing body 33 has a strength that can withstand the weight of a heavy object such as the vehicle 9. However, the conventional closing body 33 has such a shape that the recessed groove 400 cannot be closed while the door body 200 is not fully opened, and there is a problem that the car 9 or the like cannot enter or leave the chamber 300 when the door body 200 is opened halfway.

  The present invention has been devised in view of the above circumstances, and covers the upper surface of the ditch when the door body provided on the open side of the room is opened and closed so that the floor level and the ground surface are flush with each other. This is a floor level holding mechanism, and this floor level is maintained smoothly in synchronism with the opening and closing operation of the door body. It is easy to operate and handle, and is sufficient for the weight of heavy objects passing through the upper surface. An object of the present invention is to provide a floor level holding mechanism having a strength to withstand.

  In order to achieve the above object, the present invention provides a device according to a first aspect of the present invention, wherein the chamber is disposed in a recessed groove that is recessed on the opening side of the chamber so that the door body of the chamber can be opened and closed. A floor level holding mechanism for matching the floor level on the side and the outdoor floor level, the floor level holding mechanism being arranged in the groove along the opening / closing direction of the door body And the chain mechanism section, and is slidably held along the support plate of the frame mechanism section between the door body and the frame mechanism section and moves the door body in a direction perpendicular to the opening / closing direction. A door slide holding mechanism portion that is supported and coupled to the chain mechanism portion; a plurality of support pieces that are pivotally supported on the base end side by the chain of the chain mechanism portion and have a support shaft on the upper side; The base end side is pivotally supported by the support shaft of the support piece, and the upper side is A support plate having a vertical width corresponding to the width dimension of the groove, a roller pivotally supported by the support shaft of the support piece and having an axial length corresponding to the width dimension of the concave groove, and held by the support plate of the frame mechanism portion; The support plate body is disposed at an equal pitch so as to substantially cover the roller, and the upper surface thereof is disposed substantially flush with the surface of the concave groove.

  Further, in the invention of claim 2, the concave groove has a groove length approximately twice the width dimension of the door body in the opening and closing direction, and the groove width is orthogonal to the opening and closing direction when the door body is opened and closed. The roller and the support plate, which are slightly larger than the moving length in the direction, are arranged in the range of about ½ of the groove length.

  The invention of claim 3 is characterized in that the support member and the roller have a strength that can withstand the weight of a heavy object that passes through the upper surface and enters and exits the chamber.

  According to the floor level holding mechanism body of claims 1 and 3 of the present invention, when the door body is opened, the chain mechanism portion is operated via the door body sliding holding mechanism portion connected to the door body. The support plate and the roller that are pivotally supported by the movable body move in synchronization with the opening / closing operation of the door. Since the support plate body and the roller are disposed so as to close the upper surface of the groove, the upper surface of the groove is blocked by the support plate body and the roller, and heavy objects such as cars enter the room through this. Can do. In addition, since the support plate body and the roller are supported by the support plate of the frame mechanism part and have rigidity as such, they can sufficiently withstand heavy objects on the plate. As described above, the recessed groove can be closed in synchronization with the opening and closing of the door body, and the heavy objects can be safely taken in and out of the room.

  According to the floor level holding mechanism body of claim 2 of the present invention, the groove length of the recessed groove is about twice that of the door body, and the support plate body and the roller are recessed grooves by a length corresponding to the width dimension of the door body. Since it is arranged inside, only the portion of the concave groove through which the heavy article passes is closed by the support plate or the roller, and no extra members are arranged, so that it can be implemented at low cost. Further, since the vertical groove width of the concave groove is slightly larger than the movement length in the direction perpendicular to the groove length of the door body, the door body can be moved in that direction.

Hereinafter, embodiments of the floor level holding mechanism of the present invention will be described in detail with reference to the drawings. FIG. 1 shows an overall schematic structure of a door body 200 that opens and closes an opening of a chamber 300 and a floor level holding mechanism body 100 of the present invention that operates by opening and closing the door body 200.
The floor level holding mechanism body 100 is roughly divided into a frame mechanism part 1, a chain mechanism part 2, a door body sliding holding mechanism part 3, and a support piece 6 that are supported by a support plate 7 (FIG. 2). The support plate body 4 and the roller 5 are provided.

  The door body 200 is supported in a suspended manner by a moving mechanism portion 500 (detailed structure is omitted) that enables the door body to be moved back and forth and left and right. As a result, the door body 200 moves in the forward / backward direction perpendicular to the opening / closing direction and in the illustrated left / right movement (B arrow direction). The door body 200 is opened and closed in the B direction shown in the figure. 1A and 1B show the closed and opened states of the door body 200, and the support plate body 4 and the roller 5, which will be described later, are arranged below the support plate 7 of the frame mechanism section 1. FIG. It shows the state. When the door body 200 is moved in the opening direction (right direction in the figure) from this state, the entrance / exit of the chamber 300 is opened, and the support plate body 4 and the roller 5 go around to the upper surface side of the support plate 7 of the frame mechanism unit 1 to be recessed. The upper surface of the groove 400 is closed.

  As shown in FIGS. 1 to 5 and the like, the frame mechanism portion 1 is constructed so as to be completely stored in the recessed groove 400, and is laid and fixed along the groove length direction substantially in the middle of the frame body 8. And the supporting plate 7 and the like. The support plate 7 is made of a material that can withstand the weight of a heavy object (car 9) riding on the concave groove 400.

  As shown in FIG. 2 and the like, the chain mechanism portion 2 includes sprockets 10 and 10 (detailed structure shown in FIG. 5) disposed near both ends in the frame 8 of the frame mechanism portion 1, and a chain spanned between them. 11 mag.

  Next, the door body sliding holding mechanism 3 will be described with reference to FIGS. First, brackets 12 and 13 are fixed to both lower ends of the door body 200, and guide rollers 14 and 15 are fixed to the brackets 12 and 13. On the other hand, guide rails 16 and 17 into which the guide rollers 14 and 15 are slidably inserted are arranged along a direction orthogonal to the opening and closing direction of the door body 200, and are held on the lower surface side of the guide rails 16 and 17. The upper ends of the plates 18 and 19 are fixed. Further, chain connecting plates 20 and 21 for fixing and fixing both ends of the chain 11 are fixed to the holding plates 18 and 19, respectively. Further, guide rollers 22 and 23 are provided below the holding plates 18 and 19. The guide rollers 22 and 23 are each composed of four rollers, and are arranged to face each other with a space therebetween. The guide rollers 22 and 23 are arranged so as to sandwich the support plate 7 of the frame mechanism unit 1.

  As shown in FIGS. 2, 3, etc., a U-shaped support piece 6 is pivotally supported on the chain piece 24 of the chain 11. The support pieces 6 are arranged along the chain 11 at a constant pitch. At the upper end side of the support piece 6, both ends of a shaft 25 installed between the support pieces 6 and 6 facing each other are held.

  A roller 5 is pivotally supported on the shaft 25. On the other hand, the support plate 4 is fixed to a reinforcing support plate 26 that pivotally supports the lower end side of both ends of a shaft 25 provided between the support pieces 6 and 6 facing each other, and an upper surface of the reinforcing support plate 26 for reinforcement. It consists of an upper plate 27 and the like that are installed and fixed between the support plates 26 and 26. The reinforcing holding plate 26 has a shape inclined from the pivot position toward the upper surface, and the upper plate 27 fixed to the upper surface is slightly displaced from the support center of the support piece 6 in the longitudinal direction of the chain 11. Placed in. Further, as shown in FIG. 3, the upper surface of the upper plate 27 is arranged at substantially the same position as the outer periphery of the roller 5, and between the upper plates 27, 27 of the adjacent support plate bodies 4, 4, Some are exposed. Further, the outer periphery of the roller 5 is supported in contact with the upper surface of the support plate 6. As described above, these are arranged at a position flush with the ground surface 28, and the opening surface above the groove 400 is closed by the support plate 4 and the roller 5.

Next, the opening / closing operation | movement of the ditch | groove 400 by the floor level holding | maintenance mechanism 100 of this invention is demonstrated.
First, in the closed state of the door body, the floor level holding mechanism body 100 waits in the recessed groove 400 as a whole. In this state, since the guide rollers 14 and 15 of the door body 200 are inserted into the guide rails 16 and 17, the door body 200 is pulled out to the concave groove 400 side, and the door body 200 is movable in the direction B in FIG. Become.

  Next, when the door body 200 is moved in the B direction and the chamber 300 is opened, the chain connecting plates 20 and 21 fixed to the guide rails 15 and 16 are moved as shown in FIG. The chain 11 moves. As a result, the support piece 6 pivotally supported by the chain 11 moves, and the support plate body 4 and the roller 5 sequentially move from the position on the lower side of the support plate 7 in FIG. , Comes to a position to close the upper surface of the groove 400. Accordingly, when the door body 200 is completely moved in the opening direction, the upper surface of the groove 400 is closed corresponding to the amount of movement.

Since the support plate 4 and the roller 5 are supported on the support plate 7 having high strength in this state as described above, it is sufficient even if a vehicle 9 (heavy object) or the like gets on the support plate 4 or the roller 5. Since these close the upper surface of the groove 400 and are flush with the ground surface 28, the vehicle 9 and the like 300 can be easily moved in and out.
On the other hand, when the door body 200 is moved in the closing direction of the chamber 300, the chain 11 moves in the opposite direction to the above, and the support plate 4 and the roller 5 are turned below the support plate 7, and the state shown in FIG. It will be in an open state, the door 200 will move to the chamber 300 side, and the chamber 300 will be closed.

  As described above, by adopting the floor level holding mechanism 100 of the present invention and moving the door body 200 by the moving mechanism unit 500, the groove 400 is automatically closed and opened. Access is safe.

  In the present invention, the structure of each mechanism unit has been described. However, the structure of each structure unit is not limited to the contents of the above description, and the same technical category is of course applied.

  The present invention is applicable to all rooms and doors that automatically prevent the movement of the door body in the room and the opening of the upper surface of the concave groove that occurs in this case, and allow heavy objects to enter and exit the room. Is wide.

It is a front view which shows the whole general | schematic structure of the floor level holding mechanism body of a door body and the chamber engaged with this, (a) shows the time of closing of a door body, (b) shows the time of opening. The front view which shows the detailed structure of the D, E, F part in FIG. The front view (a) and partial side view (b) which show the connection structure of a support plate body, a roller, and a chain, and arrangement | positioning at the time of these ditch | groove closing. The side view of the D section of FIG. The partial side view of the F section of FIG. The typical side view which shows the relationship between a door, the door body which closes this open part, and a ditch | groove. The typical side view which shows the state which moved the door body to the ditch | groove direction from the state of FIG. The typical side view which shows the state which moves a door body and a vehicle etc. can enter and exit indoors. The typical side view which shows the closing body of the conventional concave groove.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frame mechanism part 2 Chain mechanism part 3 Door body sliding holding mechanism part 4 Support plate body 5 Roller 6 Support piece 7 Support plate 8 Frame body 9 Car (heavy article)
10 sprocket 11 chain 12 bracket 13 bracket 14 guide roller 15 guide roller 16 guide rail 17 guide rail 18 holding plate 19 holding plate 20 chain connecting plate 21 chain connecting plate 22 guide roller 23 guide roller 24 chain piece 25 shaft 26 reinforcing support plate 27 Upper plate 28 Ground surface 100 Floor level holding mechanism 200 Door body 300 Chamber 400 Concave groove 500 Moving mechanism section

Claims (3)

  A floor level holding mechanism portion that is disposed in a recessed groove that is recessed on the opening side of the chamber so that the door body of the chamber can be opened and closed, and that matches the floor level on the chamber side with the floor level on the outdoor side. The floor level holding mechanism portion is installed between the frame mechanism portion and the chain mechanism portion disposed in the concave groove along the opening / closing direction of the door body, and between the door body and the frame mechanism portion. A door body sliding holding mechanism section that is slidably held along a support plate of the frame mechanism section and supports the door body so as to be movable in a direction perpendicular to the opening and closing direction and coupled to the chain mechanism section; A plurality of support pieces pivotally supported by the chain of the chain mechanism portion and having a support shaft on the upper side; and a base end side pivoted on the support shaft of the support piece and the concave portion on the upper side. A support plate having a vertical width corresponding to the width dimension of the groove; and And a roller having an axial length corresponding to the width of the concave groove and held by a support plate of the frame mechanism, the support plate body substantially covering the roller, etc. A floor level holding mechanism having a pitch and an upper surface substantially flush with the surface of the groove.   The concave groove has a groove length that is approximately twice the width of the door body in the opening / closing direction, and the groove width is slightly larger than the moving length in the direction perpendicular to the opening / closing direction when the door body is opened / closed. 2. The floor level holding mechanism according to claim 1, wherein the roller and the support plate disposed in the concave groove are disposed in a range of about ½ of the groove length. 3. The floor level holding mechanism according to claim 1, wherein the support member and the roller have a strength that can withstand a weight of a heavy object that passes through the upper surface and enters and exits the chamber.

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