JPH09235966A - Lattice frame of extensible gate door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lattice frame of an extensible gate door which increases the strength of the connection frame and facilitates the assembling work at the same time. SOLUTION: This frame is provided with a pair of vertical frames 34, 34 mutually arranged parallelly to support an extensible link at the inside, a connection frame 42 fitted between the lower ends of the vertical frames 34, 34, and casters 14 attached to the lower sides of both outside ends of the connection frame 42. In this case, A fitting piece 44 extending in the longitudinal direction of the connection frame 42 and having a pair of vertical frames 34, 34 fixed with screws at both outer ends thereof, is protruded at the upper face of the connection frame 42. The end face of the fitting piece 44 is formed at right angles on the upper face of the connection frame 42 to get into contact with the vertical frame 34 butting the upper face of the connection frame 42.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telescopic gate that expands and contracts in the direction of siding by a telescopic link formed by connecting a number of X links, and more particularly to a lattice frame for the telescopic gate that supports the telescopic link and has casters. Is.

[0002]

2. Description of the Related Art Conventionally, as a lattice frame of this kind of expandable gate, for example, one disclosed in Japanese Utility Model Laid-Open No. 1-109598 is known. This lattice frame is arranged in parallel with each other and supports a pair of vertical frames on the inside to support a telescopic link, a connecting frame attached between the lower ends of the pair of vertical frames, and a lower side of both outer ends of the connecting frame. It consists of casters. Each vertical frame is attached at a right angle to the upper surface of the connecting frame by an L-shaped metal fitting provided on the upper surface of the connecting frame, while the caster has its bolt portion inserted in the long hole formed in the connecting frame. It is attached to the connecting frame by a nut screwed from. The connecting frame is composed of a thick metal plate material.

[0003]

As described above, in the conventional lattice frame of the expandable gate, the connecting frame to which the most load is applied is composed of the plate material, and is used in the sideways posture which is the weakest against the bending load, and has a long length. Since the holes and the like were formed, the connecting frame was weak in strength. As a result, the connecting frame is easily bent, and the smooth running of the caster is hindered. However, if you increase the thickness of the connecting frame,
Although such a problem is solved, the weight of the lattice frame is increased, and a large force is required for the expansion / contraction operation of the expansion / contraction gate. Further, since the L-shaped metal fitting is used for attaching the vertical frame to the connecting frame, there is a problem that the assembling work is troublesome.

It is an object of the present invention to provide a lattice frame for a telescopic gate, which can simultaneously increase the strength of the connecting frame and facilitate assembly.

[0005]

A lattice frame for a telescopic gate according to claim 1 is mounted between a pair of vertical frames which are arranged in parallel with each other and support the telescopic links inside, and between the lower end portions of the pair of vertical frames. A connecting frame and casters attached to both outer ends of the connecting frame, the upper surface of the connecting frame extends in the longitudinal direction of the connecting frame, and a pair of vertical frames are provided at both outer ends thereof. It is characterized in that a mounting piece to be screwed is provided in a projecting manner, an end surface of the mounting piece is formed at a right angle to the upper surface of the connecting frame, and is in contact with a vertical frame abutting against the upper surface of the connecting frame.

According to this structure, since the mounting piece projecting from the upper surface of the connecting frame extends in the longitudinal direction of the connecting frame, the sectional shape of the connecting frame and the mounting piece becomes vertically long, and the weight of the connecting frame increases. In comparison, the bending strength can be increased. Further, since the vertical frame is brought into contact with and screwed to the end surface of the mounting piece formed at a right angle to the upper surface of the connecting frame, the vertical frame can be accurately and firmly attached to the connecting frame at a right angle. further,
For the vertical frame, use the upper surface of the connecting frame as a guide to abut against the mounting piece,
Since it is attached by screwing, the assembling work can be performed easily and quickly.

In the lattice frame of the expandable gate according to claim 1, small edge caps are attached to both ends of the connecting frame, and each small edge cap extends to the position of the lower end of each vertical frame. It is preferable that the vertical frames are fastened together by screws that attach to the mounting pieces.

According to this structure, the forehead cap can be firmly attached so as not to be easily detached from the connecting frame, and a dedicated screw or the like for attaching the forehead cap can be omitted. Further, the fixing of the small cap and the fixing of the vertical frame can be performed in the same work.

The lattice frame of the telescopic gate according to claim 3 is connected to a pair of vertical frames which are arranged in parallel with each other and support the telescopic links inside, and a connecting frame which is attached between the lower ends of the pair of vertical frames. The caster is attached to the lower side of both outer ends of the frame, the connecting frame has a hollow portion, and the caster is connected to the connecting frame by screwing a male screw member provided on the caster into a female screw member inserted in the hollow portion. The attached and internally threaded member is characterized in that it is positioned by being sandwiched between the cut-out portion of the connecting frame projecting to the hollow portion side and the tip portion of the forehead cap inserted into the connecting frame.

According to this structure, since the female screw member inserted in the hollow portion of the connecting frame is automatically positioned by the cut-out portion of the connecting frame and the small cap, the female screw member does not need to be held by a tool or the like. Also, the male screw member of the caster can be screwed from the outside of the connecting frame, the female screw member can be hidden in the connecting frame, and the caster can be easily attached.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A telescopic gate to which the lattice frame of the telescopic gate of the present invention is applied will be described below with reference to the accompanying drawings.
As shown in FIG. 1, the extendable gate 1 is a so-called vertical pantograph type used for a gate of a parking lot or the like, and is extendably attached between the left and right support members 2, 2. One end of the expansion / contraction gate 1 is attached to one column member (right column member in the drawing) 2 via the hinges 3 and 3, and the other end is attached to the other by a latching metal fitting (not shown) or the like. Column member (left column member in the figure) 2
It has been struck against the ground. The illustrated state is a state in which the telescopic gate 1 is closed. From this state, the telescopic gate 1 is contracted rightward, and furthermore, the telescopic gate 1 is opened by rotating the hinge 3 around the center.

The expandable door 1 has a pair of end members 11, 11 arranged at both ends, a plurality of lattice frames 12 evenly arranged between the pair of end members 11, 11, and a pair of end members 11. , 1
1 and the expandable link 13 supported by the lattice frame 12, and the end member 11 on the tip side in the extension direction and the casters 14 provided at a ratio of 1 to 4 to 5 lattice frames 12.

The expandable link 13 is a parallel link mechanism in which two X links, which are slanted lattices arranged in two rows in the prospective direction, are linked in double, and the parallel link mechanism is provided at the intersection of each link 21. A shaft (details of which will be described later) that constitutes the rotating pair is provided. Then, a pair of end members 11 and a plurality of lattice frames 12 are respectively arranged in a portion where the three axes are aligned in the vertical direction. In this case, the lowest one of the three shafts is fixed to each end member 11 and each lattice frame 12, and the other two shafts are vertically arranged with respect to these members. It is slidably attached.

Therefore, when the expansion / contraction link 13 is expanded / contracted in the left / right direction, the end members 11 and the lattice frames 12 move in the left / right direction while maintaining the vertical intervals, and the expansion / contraction link 13 is expanded. It itself expands and contracts in the vertical direction with the lower end as the base point. At that time, caster 14
Supports the telescopic link 13 so that it does not tilt while rolling.

FIG. 2 is a cross-sectional view of an upper portion of the retractable (folded) telescopic gate 1, and FIG. 3 is a cross-sectional view of a lower portion of the telescopic gate 1 extended. As shown in both figures, each of the left and right support members 2 has a pair of supports 2a, 2a arranged in the prospective direction (front-back direction) and a pair of the supports 2a, 2a.
And a plurality of horizontal rails 2b that connect the two. As shown in FIG. 2, the hinge 3 described above is provided between the end member 11 and the post 2a on the site side of the post member 2 on the right side of the drawing, and the expansion / contraction gate 1 is folded and then placed on the site side. It is rotated. Further, as shown in FIG. 3, in the center of the lower part of the end member 11 on the left side of the figure and on the side part of the middle lattice frame 12,
A drop tablet 15 is attached to each. In this case, the drop lock 15 on the side of the lattice frame 12 locks the stretched (closed) telescopic gate 1 to the ground surface, and the end member 1
The lock tablet 15 on the first side is for locking the telescopic gate 1 that is folded and rotated approximately 90 degrees toward the site side to the ground surface.

FIG. 4 is a side view around the lattice frame 12. The lattice frame 12 is an arch frame 31 formed in a substantially inverted "U" shape.
And the upper frame 32 attached inside the upper end of the arch frame 31
And a lower frame 33 attached to the lower end of the arch frame 31. The arch frame 31 includes a pair of vertical frame portions 34, 34 arranged in parallel to each other and a decorative frame portion 35 arranged along the upper frame 32 between the upper ends of the pair of vertical frame portions 34, 34. , The pair of vertical frame portions 34, 3 are integrally formed.
An expandable link 13 is provided inside the inner part 4. In this case, the arch frame 31 is formed by bending a shape member having a “C” -shaped cross section in which a portion corresponding to the decorative frame portion 35 is cut out, along the upper surface of the upper frame 32.

Therefore, each vertical frame portion 34 has a "C" -shaped cross section as it is as a raw material, and the space inside the cross section serves as a swallow groove 36 for mounting the telescopic link 13. Further, a step portion (upper end of the vertical frame portion) 37 is formed between each vertical frame portion 34 and the decorative frame portion 35, and the step portion 37 is
As will be described later, it serves as a portion for locking the upper frame 32.
On the other hand, the decorative frame portion 35 is notched except for the rear wall of the “C” -shaped cross section (actually, the side wall is also slightly left), so that it can be bent easily. There is. Further, as a result, the arch frame 31 is bendable, and the outer peripheral surface of the arch frame 31 is a continuous surface, and the design is finished with a neat and united feeling.

The upper portion of the upper frame 32 has a curved shape, the upper surface thereof engages with the decorative frame portion 35, and the lower end portions thereof are fitted into the dovetail groove 36 of the vertical frame portion 34. It is attached to the arch frame 31 so as to match. That is, the upper frame 32 is pressed from the upper side by the decorative frame section 35 and from the lower side by the step section 37,
It is attached so as to be included in the upper end of the arch frame 31. Similarly, the lower frame 33 has vertical frame portions 3 at both ends thereof.
The arch frame 31 is fitted into the swallowing groove 36 of 4
Attached to.

The expandable link 13 disposed inside the arch frame 31 is connected to both vertical frame parts 34, 34 of the arch frame 31 via a shaft provided at the intersection of the links 21 constituting the expandable link 13. It is installed. This telescopic link 13
Then, the intersection of each link 21 is 3
Two places occur in the place and in the middle of the adjacent lattice frames 12 and 12 (see FIG. 1). Of the three intersections, the first shaft 22 provided at the upper two intersections rotatably supports the two intersecting links 21 and slides at both ends thereof. Both vertical frames 3 by the children 23, 23
They are slidably engaged with the swallow grooves 36, 36 of 4, 4, respectively. In addition, the second one provided at one intersection on the lower side
The shaft 24 rotatably supports the two links 21 and 21, and both ends of the shaft 24 are screwed from the outside of the vertical frame portions 34, 34 by screws 25, 25.
It is fixed to 34 respectively. Further, a third shaft 26 provided at two intersections between the adjacent lattice frames 12, 12.
Supports two intersecting links 21, 21 rotatably with respect to each other. And these two links 21,2
1 between the shafts 1 and between the link 21 and the vertical frame 34.
The spacer 27 is inserted so as to be inserted into the cables 2, 24, 26 and prevents the expansion link 13 from rattling in the prospective direction. It should be noted that each of the above-mentioned sliders 23 has the first shaft 22.
It is a top (roller) rotatably attached to the end surface of
Sliding in the swallow groove 36 is made smooth.

FIG. 5 shows the lattice frame 12 with casters among the plurality of lattice frames 12. The lattice frame 12 is provided with a support frame 41 to which the casters 14 are attached, instead of the lower frame 33. The support frame 41 is formed of a shape member, and has a support frame main body (connection frame) 42 having a hollow portion 43, and two mounting screw holes 45, 45, and a mounting piece protruding from the upper surface of the support frame main body 42. 44 and 44 are integrally formed. Both ends of the mounting piece 44 are connected to the support frame main body 4
The pair of vertical frame portions 34, 34 are notched so as to be shorter than 2, and the mounting pieces 44 are sandwiched from both sides in a state where the lower ends are abutted against the upper surface of the support frame main body 42. By the two mounting screws 46, 46 screwed into the screw holes 45, 45 from the outside of the vertical frame portion 34, the mounting piece 44
It is fixed to. In this case, the end surface of the mounting piece 44 extends at a right angle to the upper surface of the support frame main body 42, and
The vertical frame portion 34 is guided by the end surface of the support frame 41 and the upper surface of the support frame body 42 so as to be attached to the support frame 41 at a right angle. In addition, specifically, the end surface of the mounting piece 44 is formed by the vertical frame 3
4 is inserted into the swallowing groove 36 and is in contact with the rear wall thereof.

Further, edge caps 47, 47 are attached to both edges (both ends) of the support frame body 42. Each of the caps 47 includes a cap main body 47a that is attached to the hollow portion 43 of the support frame main body 42 by insertion, and a guard portion 47b that covers a portion extending from the end of the support frame main body 42 to the lower end of the vertical frame portion 34. , Are integrally formed. The guard portion 47b is formed with a countersunk hole 47c for the above-mentioned upper mounting screw 46, and the fore cap 47 has an upper mounting screw 46 screwed into the mounting piece 44 from the countersunk hole 47c.
Thus, they are fixed to the vertical frame portion 34 in a jointly fastened state. Although not shown in particular, the cap body 47a side is also screwed from the lower side of the support frame body 42 into the support frame body 4 by a screw.
It is fixed to 2.

On the other hand, the caster 14 has a male screw 51 at its mounting shaft portion. The male screw 51 has two female screws 52 from inside and outside the hollow portion 43 of the support frame main body 42.
a and 52b are screwed together. A cut-and-raised portion 48 is formed in each mounting portion of the caster 14 in the support frame main body 42 so as to project into the hollow portion 43, and the female screw 52a on the upper side is formed.
The position is regulated by the cut-and-raised portion 48 and the tip of the fore-edge cap 47 inserted into the fore-edge of the support frame main body 42. Further, the female screw 52a is inserted in the side wall of the hollow portion 43 in a rotation-stopped state, and its vertical movement is restricted by a pair of projecting pieces 49, 49 projecting into the hollow portion 43. Therefore, the female screw 52a is attached to the hollow portion 4
After the insertion into the No. 3, it is fixedly positioned by attaching the fore-end cap 47. And this female screw 52a
Then, from the lower side of the support frame main body 42, the male screw 5 of the caster 14
The height level of the support frame 41 is adjusted by screwing 1 and the caster 14 is fixed to the support frame 41 by further tightening the lower female screw 52b.

Next, the mounting structure of the drop lock 15 will be described by taking the drop lock 15 on the lattice frame 12 side as an example. Here, the drop lock 15a having a different mounting form from the drop lock 15 of FIG. 3 will be described. As shown in FIG. 6, the drop lock 15a
Is a round bar-shaped lock body 61, a knob portion 62 that extends at a right angle from a substantially middle position of the lock body 61, and a stopper that is attached to the lower end portion of the lock body 61 and that regulates the insertion depth into a drop pot (not shown). And a ring 63. The drop lock 15a is attached to the support plate 72 attached to the lattice frame 12 at the lock body 61. A guide portion 73 into which the lock body 61 is inserted is formed at an intermediate position in the width direction of the support plate 72, and the drop lock 15a is slidably attached to the guide portion 73.

The guide portion 73 is composed of a pair of arc pieces 73a, 73a protruding from the support plate 72, and a gap 74 is formed between the tips of the arc pieces 73a, 73a to allow passage of the knob 62. . In addition, the support plate 72
A V groove 75 with which the knob 62 is engaged is formed at a position corresponding to the base of the arc piece 73a at the upper end of the. That is, by aligning the knob portion 62 with the gap 74 and sliding it downward along the gap 74, the drop lock 15a descends and is inserted into the drop jar to lock. on the other hand,
In this state, the knob 62 is slid to the upper side of the guide 73 and further rotated to engage with the V groove 75, whereby the drop lock 15a is unlocked and held on the side of the expandable gate 1.

In this way, the support plate 72 has the knob 6
By forming the V groove 75 with which the 2 engages, the knob portion 62 does not fall into the gap 74 of the guide portion 73 against the vibration accompanying the opening and closing of the expandable gate 1. That is, when the expandable gate 1 is opened or closed, the drop lock 15a does not come off and its lower end does not rub the ground.

As described above, according to the caster-equipped lattice frame 12 of the present embodiment, the support frame 41 is provided in the support frame body 4.
2 and the mounting piece 44 protruding from the upper surface of the support frame body 42 are integrally formed, so that the support frame 41 can have a structure having a relatively small cross-sectional shape and strong against bending load.
Further, since the end surface of the mounting piece 44 is made to extend at a right angle to the upper surface of the support frame main body 42 when the screw hole 45 is formed in the mounting piece 44, the vertical frame portion 34 can be accurately formed at a right angle to the support frame 41. Good and easy to install.

On the other hand, the mounting screw 46 for attaching the vertical frame portion 34 to the support frame 41 is designed to tighten the small cap 47 together, so that the dedicated screw for the small cap 47 can be saved and the assembling can be done. The process can be simplified. Moreover, the caster 14 can be easily attached without exposing the female screw 52a to the outside because the female screw 52a for attaching the caster is positioned immovably by using the mounting of the small cap 47.

In the above embodiment, the support frame main body and the mounting piece are integrally formed of a shape member, but they may be fixed to each other as separate bodies.

[0029]

As described above, according to the lattice frame of the expandable gate of the present invention, since the mounting piece for screwing the vertical frame is projectingly provided on the upper surface of the connecting frame, the connecting frame is resistant to bending. And the vertical frame can be easily assembled. Moreover, since the end surface of the mounting piece is formed at a right angle to the upper surface of the connecting frame, and the vertical frame is mounted so as to be guided by the end surface of the mounting piece and the upper surface of the connecting frame, the vertical frame can be accurately and firmly attached. Can be attached to.

[Brief description of drawings]

FIG. 1 is a front view of a telescopic gate to which a lattice frame according to an embodiment of the present invention is applied.

FIG. 2 is an enlarged transverse cross-sectional view of a retractable (folded) state of the expandable gate.

FIG. 3 is a partially enlarged cross-sectional view of a telescopic gate in an expanded state.

FIG. 4 is a side view around a lattice frame.

FIG. 5 is a partial structural view of a lattice frame with casters.

FIG. 6 is a structural diagram showing a mounting structure of a drop lock.

[Explanation of symbols]

1 Telescopic gate, 12 Lattice frame, 13 Telescopic link, 14
Casters, 34 Vertical frame part, 41 Support frame, 42 Support frame body, 43 Hollow part, 44 Mounting piece, 45 Screw hole, 46 Mounting screw, 47 Small cap, 48 Cut-and-raised part, 51 Male screw, 52a Female screw

Claims (3)

[Claims] 1. A pair of vertical frames which are arranged in parallel with each other and support an elastic link inside, a connecting frame mounted between lower end portions of the pair of vertical frames, and lower sides of both outer end portions of the connecting frame. And a caster attached to the upper surface of the connecting frame, the mounting pieces extending in the longitudinal direction of the connecting frame, and projecting from the outer ends of the connecting frame to which the pair of vertical frames are respectively screwed. A lattice frame for an extendable gate, wherein an end surface of the attachment piece is formed at a right angle to an upper surface of the connecting frame and is in contact with a vertical frame abutting against the upper surface of the connecting frame. 2. An edge cap is attached to each end of the connecting frame, and each edge cap extends to the position of the lower end of each vertical frame, and each vertical frame is 2. The screws are attached together to the attachment piece and fastened together.
The lattice frame of the expandable gate as described in. 3. A pair of vertical frames which are arranged in parallel with each other and support the telescopic links inside, a connecting frame mounted between the lower ends of the pair of vertical frames, and lower sides of both outer ends of the connecting frame. And a caster attached to the connecting frame, wherein the connecting frame has a hollow portion, and the caster is attached to the connecting frame by screwing a male screw member provided on the caster into a female screw member inserted in the hollow portion. The female screw member is positioned by being sandwiched between the cut-out portion of the connecting frame projecting to the hollow portion side and the tip end portion of the forehead cap inserted in the connecting frame. Gate lattice frame.