JPH038792Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a treadle interlocking device that moves back and forth while moving up and down in conjunction with the opening and closing of a door provided at the entrance of a vault, library, etc.

Doors of vaults, archives, etc. are generally formed on the same continuous flat surface inside and outside the room to allow for the entry and exit of transport vehicles, etc. However, in consideration of waterproofing etc., the bottom frame of the door is There are some that are formed into so-called doorstops. If this door frame is formed as a door stop, the door stop protrudes from the floor surface at the boundary between the indoor and outdoor areas, so the door stop separates the continuous surface between the indoor and outdoor areas with a step. It will be. In addition, a waterproof sealing material may be provided on the door stop surface of the door frame in order to make the door waterproof.

Conventionally, in order to eliminate the level difference, a so-called folding type treadle, which is installed at an angle with respect to the level difference floor surface and can be raised and lowered, has been manually raised and lowered when opening and closing the door. is linked to the opening and closing of the door, and is located on the front end side of the treadle (the side that corresponds to the step by the doorstop).
Interlocking treads that move up and down are used, but manual ones not only have the disadvantage of being time-consuming to operate, but also cause the treads to move when the door is closed with the treads lying down. There are disadvantages in that the door being closed may be crushed by its weight, or that abnormal force may be applied to the door hinge.In addition, the above-mentioned interlocking tread plate has the disadvantage that the front end of the door is centered on the rear end of the door. Because the door moves in a circular arc or simply moves up and down, a gap is created between the tip of the step board that moves upward and the step formed by the doorstop, and foreign objects and dust may enter the interlocking mechanism through this gap. In addition, there is a problem that there is a concern that the doorstop may be affected by the doorstop, and if a waterproof sealing material is provided on the doorstop surface, the vertical movement of the treadle will affect the sealing material protruding from the front of the doorstop. The problem is that it gets in the way.

As mentioned above, this invention is a tread plate interlocking device that does not have the disadvantages of conventional ones for doors such as vaults where a step is formed on the floor between indoors and outdoors due to the door stop being formed on the bottom frame of the door. The structure is such that a cam that is rotated by being connected to the opening/closing shaft of a door of a vault or the like is mounted on the top surface of a board that is horizontally rectangular in plan and has a box shape with a shallow bottom. a rotating operating plate having a rotary operating plate, a transverse rod that slides only in the lateral direction by being pushed by a cam of the operating plate; A substantially L-shaped direction conversion link fixedly pivoted to the
The rear end side of the link is movably pivoted to the rear end side, and a support piece member having a forwardly facing sloped surface is provided on the upper surface of the tip side, and the two left and right front and rear movement members are provided so as to be able to slide only back and forth. A rod, a guide stand on the side of the piece member of these longitudinally operating rods and having a quarter-circular guide groove formed on the side surface, and two left and right support pins erected on the front side of the transverse rod are provided. to form a supporting base frame for the treadle, and the supporting base frame is placed close to the front side of the doorstop and buried in the floor surface so as to be substantially flush with the floor surface, while a shape substantially similar to the planar shape of the base plate is formed. A connecting plate having a long hole in the longitudinal direction into which the pin is loosely inserted is provided on the back side of the treadle, and a connecting plate having a long hole in the longitudinal direction into which the pin is loosely inserted is provided on the front side, and a guided board which is guided by loosely fitting into the grooves of the two guide stands on the opposite side. a member is provided in a protruding manner facing the groove, and an inverted wedge-shaped supported piece member supported by the two supporting piece members is attached to a portion corresponding to the two supporting piece members;
The stepboard is mounted on a support base frame with the elongated hole of the connecting plate of the stepboard being associated with the support pin in the support base, the supported piece member being associated with the support piece member, and the guided member being associated with the guide groove, The back and forth movement of the piece member of the longitudinal operating lever accompanying the opening and closing of the door causes the supported piece member of the footboard to move upward, and the upward movement is converted into an arcuate movement by the guided member guided by the guide groove. , is characterized in that the front of this step board is moved back and forth while being raised and lowered.

Next, embodiments of the present invention will be described with reference to the drawings.

In Fig. 1, reference numeral 1 denotes a board having a generally horizontally long rectangular shape when viewed from above, and a frame member 1a made of a cross-sectional shape is provided on the front side of its outer periphery, and frame members 1b and 1c of an appropriate height are provided in the remaining parts. It is formed into a box shape with a small depth as a whole.

Reference numeral 2 denotes a disk-shaped rotary operating plate which is rotatably provided at the right front corner of the board 1 via a shaft 2a perpendicular to the base plate 1, and here, a 45 degree notch is provided on the front of its outer periphery to the left and right in the front-rear direction. A cam 2b is formed, and the shaft 2a is connected to the shaft of a hinge that moves together with the door. Therefore, the operating panel 2 rotates in conjunction with the opening and closing of the door.

Reference numeral 3 denotes a transverse frame made of a horizontally long copper plate adjusted to a length that allows it to slide appropriately in the horizontal direction within the frame of the board 1, and the rod 3 has two long holes 3a formed horizontally on both sides thereof. Support bolts 3 erected on the board 1
b, so that it can slide only in the lateral direction at the front close to the actuation plate 2.

The transverse rod 3 is provided with an operating protrusion 3c, which is pushed by the notched cam 2b of the operating plate 2, at a position where it comes into contact with the outer peripheral surface of the notched cam 2b. Now, when the door is opened in the closed state shown in FIG. 1, the operating plate 2 is rotated counterclockwise, but the cam 2b does not immediately come into contact with the protrusion 3c, and after about
After rotating 23 degrees, push the protrusion 3c to the left. Further, when the operating plate 2 rotates, the transverse rod 3 integral with the projection 3c moves to the left, and the projection 3c separates from the right wall of the cam 2b. Expressing the above operation in relation to the opening angle of the door (not shown), when the closed door is opened approximately 23 degrees, the right wall of the cam 2b of the operating panel 2 pushes the protrusion 3c. Initially, the cam 2b separates from the protrusion when the door opens approximately 68 degrees from the beginning, so the transverse rod 3 is positioned so that the door opens approximately 23 degrees.
It started rampant after it was opened, and then the door opened about
Complete the traverse while being opened 45 degrees.

On the other hand, even if the door is closed from the open state and the actuation plate 2 is rotated clockwise, the left wall of the cam 2b cannot come into contact with the left side of the protrusion 3c. A cam 2c and an associated operating protrusion 3d for moving the transverse rod 3 to the right when the disk 2 rotates clockwise are provided on the upper surface of the operating disk 2 and the upper right surface of the transverse rod 3, respectively.
It should be noted that the cam for moving the transverse rod 3 to the right and the protrusion for receiving the cam can of course have a structure other than that of the above embodiment by changing the shape of the notched cam 2b or the shape of the protrusion 3c. It is.

In this embodiment, when the door is closed, the actuating plate 2 rotates clockwise, and the actuating protrusion 3d, which is involved in the rightward movement of the transverse rod 3 which is moving to the left, reaches the end of the closing of the door. The transverse rod 3 is pushed by the rightward cam 2c between about 90 degrees and returns to the illustrated state.

Reference numeral 4 denotes a direction conversion link which is connected to the horizontally movable transverse rod 3 and converts the direction of movement of the rod 3 by 90 degrees, that is, into the front-rear direction of the board 1; The bent portion of the formed link body is fixedly pivoted to the substrate 1 by the shaft 4a, and
A long hole 4b provided in a vertical member 41 intersecting the transverse rod 3 is loosely fitted into a pin 3e erected on the transverse rod 3. In this embodiment, two links 4 are provided in the longitudinal direction of the transverse rod 3, but the number may be two or more.

Reference numeral 5 denotes two longitudinal operating rods that are disposed to cross the horizontal member 42 of the two links 4 and the horizontal member 3, facing in the front-rear direction of the board 1; In order to make only the link 4 slidable, it is supported by holding parts 5a and 5b provided on the upper surface of the substrate 1 at the front and rear in the longitudinal direction, and at the intersection of the link 4 and the horizontal member 42, the horizontal member 42 A pin 5c is provided upright to be loosely fitted into a long hole 4c formed in the hole 4c. Reference numeral 6 denotes a support piece member provided on the upper surface of the tip of the operating rod 5, and the member 6 is formed into a wedge-like or trapezoid-like shape with an inclined surface 61 formed on the front side.

Therefore, when the transverse rod 3 moves to the left, this movement is caused by the link 4.
The direction is changed by 90 degrees, and the longitudinal motion is transmitted to the operating rod 5.

7 is the two operating rods 5 on the upper surface of the substrate 1.
There are two guide stands provided on the inner side of the support piece member 6, and a quarter-arc shaped guide groove 71 is provided on the inner side of the stand.
is provided in such a way that it stands up from the front side toward the front. Reference numeral 8 designates two support pins erected on the base plate 1 along the frame member 1a located on the front side of the base plate 1, and are used to support and guide a step board, which will be described later, only in the front-rear direction. 1 to 8 above constitute an example of a support base frame that supports the footboard.
In addition, this base frame connects the shaft 2a of the rotary operating panel 2 to the shaft of the hinge of the door D on the floor surface F facing the door stop side S of the door lower frame, and also connects the shaft 2a of the rotary operation panel 2 to the shaft of the hinge of the door D, and also connects the shaft 2a of the rotary operation panel 2 to the shaft of the hinge of the door D, and also connects the shaft 2a of the rotary operating panel 2 to the floor surface F facing the door stop side S of the door lower frame. buried at a depth of (See FIG. 3) An example of a footboard that is supported by the base frame and moves back and forth while the front side is moved up and down is constructed as shown in FIG.

FIG. 2 is a plan view showing the back side of the treadle, in which the treadle 9 is formed of a horizontally long rectangular steel plate that is slightly smaller in the front and back direction than the size of the base plate 1 excluding the part where the operating board 2 is installed. However, the structure described below is added to the back surface of the step board 9.

That is, 10 is two connecting plates provided corresponding to the support pins 8, 8 on the near side of the base frame, which are provided in the shape of tongues on the back side of the footboard 9 on the near side, and extend in the front and rear direction. A long hole 10a is provided along the support pin 8, which is loosely fitted and supported by the support pins 8, 8. The connecting plates 10, 10 in this embodiment are attached via attachment members 10b provided on the back surface of the tread plate, and are provided in a state slightly lifted from the back surface of the tread plate.

Reference numeral 11 denotes two roller bearings provided at positions corresponding to guide grooves 71, 71 formed in the guide stand 7 of the base frame when the connecting plate 10 is supported by the support pin 8 of the base frame. When the elongated hole 10a of the connecting rod 10 is supported by the pin 8 and moves back and forth, the bearing 11 is tightly and loosely fitted into the guide groove 71, so that the front side of the footboard 9 is guided into the guide groove 71.
This is a guided member that plays the role of moving along the

Reference numeral 12 designates two pillow members in the shape of an inverted wedge that are fixedly provided in front of the back surface of the treadle in correspondence with the support pieces 6, 6 of the two longitudinally operating rods 5 on the base frame. Provided as a support piece member. Thus, the member 12 supports the weight of the treadle 9 while its sloped surface 12a is supported by the sloped surface of the support piece member 6 which moves back and forth as the door is opened and closed.
It moves up and down as one.

Here, the tread plate 9 has a connecting plate 10 on its front side.
Since the opposite side is supported and guided by the support pin 8 and the opposite side is supported and guided by the guide groove 71 by the bearing 11, the treadle 9, which moves up and down together with the pillow member 12 due to the back and forth movement of the bridge member 6, has its front side moved when the door is closed, for example. While sliding forward, the opposite side moves upward while drawing an arcuate trajectory along the guide groove 71. On the contrary, when the door is closed, the bridge member 6 retreats to the side away from the pillow member 12, so the bearing 11 moves into the guide groove 7.
1, the connecting plate 10 slides down in an arc shape, and the connecting plate 10 retreats along the support pin 8. In addition, in Figure 2,
11a is a mounting frame for aligning the position and height of the bearing 11 with the guide groove 71, and 9 to 12 above constitute an example of the step board of the present invention, and the above-mentioned support base It is mounted on a frame to form an example of the tread plate interlocking device of the present invention.

The treadle device configured as described above is installed at the entrance of a vault, etc. where a door is installed, and a support base frame is placed in the floor in front of the doorstop, which is made up of a door bottom frame that protrudes from the floor. Treadboard 9 that is buried and has not been lifted forward
When the door is opened and closed, the front of the footboard 9, that is, the door stop side, moves forward a little and rises in an arc shape, thereby causing the raised front upper surface to rise. It is used so that it is approximately on the same level as the doorstop. Therefore, in the device of the present invention, the amount of rise of the footplate 9 on the doorstop side is determined by the inclination of the support piece member 6, its height, or the guide base, in accordance with the height of the doorstop formed by the door bottom frame. 7 groove 7
By changing the height of the pillow member 1, the inclination and height of the pillow member 12 supported by these, or the height of the mounting position of the bearing 11, it is possible to make it arbitrary. can.

The device of the present invention is as described above, and has a bottom frame formed on the door stop for waterproofing purposes on the floor of the entrance of a vault, etc., so that it can be used for doors with a step on the floor between the inside and outside of the room. Installed near the door stop, as the door opens and closes, only the door stop side of the treadle moves forward while rising to match the height of the door stop, creating a continuous surface with no steps between the indoor and outdoor floors. By making this possible, it is possible to smoothly enter and exit transport vehicles, etc., and there are general effects such as not having to manually operate the tread plate itself to raise and lower it, but also the following unique features: There is an effect.

In particular, in this invention, the door stop side of the treadle is moved back and forth while being raised and lowered by the action of the quarter-circular guide groove, so for example, the waterproof sealing material protrudes from the door stop surface of the lower door frame. Even if it is provided, it is possible to obtain the effect that the door stop side of the step board does not collide with the sealing material when moving up and down and back and forth. Incidentally, in the case of conventional treads that simply move the doorstop side up and down, if a waterproof sealant is provided on the doorstop side,
There was a problem that the above-mentioned vertical movement was hindered by the sealing material.

In addition, in the present invention, the bridge member that supports the weight of the treadle and applies vertical power to it, and the guide groove that converts and guides the vertical movement of the treadle into circular motion, that is, movement that moves back and forth while going up and down, are separate members. With this structure, it is possible to smoothly and reliably operate the footboard when opening and closing the door.

Since the present invention is as described above, it is extremely useful as a door tread interlocking device in a vault or the like.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an example of the support frame in the device of the present invention, FIG.
The figure is a perspective view of the support base frame, and FIG. 5 is a partially cutaway perspective view of the footboard. 1... Board, 2... Rotating operation board, 2a... Axis,
2b...cam, 3...transverse rod, 3a...long hole, 3
b...Support bolt, 3c...Operation protrusion, 4...Direction conversion link, 5...Back and forth operation rod, 6...Support piece member, 61...Slanted surface, 7...Guide stand, 71...
Guide groove, 8...Support pin, 9...Treadboard, 10...
Connecting plate, 11...roller bearing, 12...pillow member.

Claims (1)

[Scope of utility model registration request] On the top surface of the board, which is horizontally rectangular in plan and has a box-like shape with a shallow bottom, is a rotary operating board that has a cam that is connected to the opening/closing shaft of a door such as a vault and rotates. a transverse rod that slides only in one direction; a substantially L-shaped direction change link having a distal end movably pivoted on both longitudinal sides of the transverse rod and a bending portion fixedly pivoted to the base plate; The rear end side of the link is pivotally attached to the rear end side so that the link can move freely, and the upper surface of the tip side is provided with a support piece member having an inclined surface facing forward, and the left and right two front and rear operating rods are provided so as to be able to slide only back and forth. , a guide stand having a quarter-arc shaped guide groove formed on the side surface of the bridge member of these front and rear operating rods, and two left and right guides erected on the front side of the transverse rod.
A support base frame for the treadle is formed by providing support pins for the book, and the support base frame is buried in the floor surface so as to be close to the front side of the door stop and substantially flush with the floor surface, while the planar shape of the board A footboard having approximately the same shape as the above is provided with a connecting plate having a long hole in the front and rear direction on the front side that is loosely inserted into the support pin, and a connecting plate that is loosely fitted into the grooves of the two guide bases on the opposite side. A guided member to be guided by the support member is provided in a protruding manner opposite to the groove, and an inverted wedge-shaped supported piece member supported by the two supporting piece members is attached to a portion corresponding to the two supporting piece members. The stepboard is mounted on a support base frame with the elongated hole of the connecting plate of the stepboard being associated with the support pin in the support base, the supported piece member being associated with the support piece member, and the guided member being associated with the guide groove. As the door is opened and closed, the back and forth movement of the piece member of the longitudinal operating lever causes the supported piece member of the tread plate to move upward, and the upward movement is caused to move in a circular arc by the guided member guided by the guide groove. A tread interlocking device for a vault door, etc., characterized in that the front of the tread is moved back and forth while moving up and down.