JPS5914555Y2 - Lattice type tread plate fixing hardware - Google Patents

Description

[Detailed Description of the Invention] The present invention mainly relates to improvements in the mounting hardware for lattice-type treads, which are widely used on factory aisles, floors, etc., and on ordinary ditch lids, square lids, etc.

As shown in Figure 1 A, B, and C, the lattice-type tread consists of horizontal strips made of a series of twisted square rods with rectangular cross sections, welded together so that they are perpendicular to the vertical strips a and on the same plane. .

The lattice-type tread used in the present invention is not limited to the lattice-type tread described above, but as shown in Figures 2 to 4, horizontal strips of various shapes are attached to vertical strips a of various shapes. It can also be used for various lattice-type treadboards and assembled lattice-type treadboards.

As shown in Fig. 5, the conventional method for attaching and fixing the lattice-type tread is to lay the lattice-type tread on the support material 8 at a specified position, and shift it from the position where a series of vertical strips a and horizontal strips are welded together. , insert the head of the bolt 10 into the spatial position of the vertical strip a adjacent to the vertical strip a, fix the receiving material 8 and the head of the bolt 10 by welding, and insert the bolt leg of the upper pressing hardware 11. The leg portion of the hole 11a was passed through the hole 11a, and the nut 12 was screwed into the hole 11a for connection and fixation.

Therefore, it takes a lot of work to weld and fix the bolt head to the pedestal, and it is difficult to weld and fix it in a predetermined position accurately, so it is not suitable for installing a large number of lattice-type treads in succession. .

In addition, if the mounting position of the lattice-type treadle is changed, it is difficult to remove the welded fixation between the receiving material and the bolt head, and at the same time, the removal leaves a messy residue that spoils the aesthetics. There were drawbacks such as the need for additional equipment.

The present invention fundamentally improves this and is suitable for installing a large number of lattice-type treads in succession, and the key bodies are attached and fixed to the lattice-type treads in the factory, and the lattice-type tread supports are installed in a factory. niT
By welding and fixing mold-shaped fixing pins, it is possible to provide an excellent product in terms of appearance and efficiency of installation and fixation without requiring equipment such as gas or electricity for on-site installation.

Below, one example of implementing the present invention will be explained with reference to the drawings.
As shown in the figure, the required number of vertical strips a are cut at the required positions at the end of the lattice-type tread 1, and the square-shaped holes are closed by blocking plates a' having the same height as the vertical strips a. A key mounting plate 2 having an opening/closing tool insertion hole 2a is welded and fixed between the closing plate a' and the end plate a1 in the rectangular hole.

As shown in FIGS. 7 to 9, the key body A has a key body mounting plate 2,
Leaf spring holder 3, leaf spring 4, opening/closing cam 5, leaf spring receiver 6
, and a fixing pin 7.To explain in order, the key body mounting plate 2 is made of a rectangular flat plate, and has an opening/closing tool insertion hole 2a carved in the center of the shank, and a hole 2a for inserting an opening/closing tool at the required position in the width direction. Leaf spring holder fastening hole 2 consisting of a plurality of countersinks
Form by engraving b.

Next, the leaf spring holder 3 has a rectangular parallelepiped top surface with a rectangular cross section.
A plate spring holder 3 is formed by welding and fixing a flat plate larger than the upper surface of the rectangular parallelepiped, and an opening/closing cam protrusion fitting hole 3a is cut in the center of one end of the flat plate of the plate spring holder 3, and the required width direction is A plurality of plate spring holder fastening holes 3b are carved at the positions, and
A plate spring holding hole 3C is formed in the side surface of one rear end of the rectangular parallelepiped, and a plate spring receiving mounting screw 3d is carved in the center of the bottom.

Next, the opening/closing cam 5 has a cylindrical shape with two parallel sides, has an opening/closing fitting hole 5b at both ends thereof, and is provided with an earthen protrusion 5a and a lower protrusion 5a' each having a step.

The leaf spring receiver 6 is a rectangular flat plate with a rectangular cross section, has the same length as the leaf spring holder 3, has a leaf spring receiver mounting hole 6a in the center, and fits into the opening/closing cam lower projection 5a' at one end. An opening/closing cam protrusion fitting hole 6b is carved.

The fixing pin 7 has a cylindrical shape with a required length and a disk-shaped head.

The assembly order is as follows.

(1) Align the opening/closing tool insertion hole 2a of the key mounting plate 2 and the leaf spring holder fastening hole 2b with the opening/closing cam protrusion fitting hole 3a of the leaf spring holder 3 and the leaf spring holder fastening hole 3b. , insert the countersunk screw 2' into the plate spring holder fastening hole 2b from above and fasten and fix it with the nut 2''.

(2) Hold the leaf spring holder 3 between the pair of leaf springs 4, 4, and align the leaf spring holding hole 3C with the leaf spring holding hole 4a,
Fasten with bottle 4' and nut 4''.

(3) The opening/closing cam upper projection 5a of the opening/closing cam 5 is rotatably attached to the opening/closing cam projection fitting hole 3a of the leaf spring holder 3, and the leaf spring receiver 6 is attached to the bottom of the leaf spring holder 3. The plate spring holding hole 6a of the plate spring holder 6 is brought into contact with the plate spring receiving mounting screw 3d of the plate spring holder 3, and the bolt 6' is screwed and fastened through the plate spring holder 6. The protrusion 5a is inserted into the opening/closing cam protrusion fitting hole 6b of the leaf spring receiver 6 and is rotatably attached.

(4) The fixing pin 7 is welded and fixed to a predetermined position on the receiving member 8 with its disk-shaped head facing upward to form the key body A.

(Operation explanation) FIG. 10 shows the case of unlocking.

(A direction perpendicular to the opening/closing cam to the leaf spring holder) A fixing pin 7 is welded and fixed at a required position on the receiving frame 8, and the key body A attached to the end of the lattice type treadle 1 is placed from the upper surface thereof.

Next, an opening/closing tool 9 consisting of a round steel handle attached to a square steel leg rod.
The tip is fitted into the opening/closing tool fitting hole 5b of the opening/closing cam upper protrusion 5a rotatably attached to the opening/closing cam protrusion fitting hole 3a of the leaf spring holder 3, so that it is perpendicular to the leaf spring holder 3. When the opening/closing cam 5 is rotated in the direction and the opening/closing tool is extracted,
The leaf springs 4, 4 that hold the opening/closing cam 5 are opened and expanded, and the lattice-type footboard 1 is opened with the fixing pin 7 positioned between the leaf springs 4, 4.
can be placed.

FIG. 11 shows the case of locking (the opening/closing cam is parallel to the leaf spring holder).The tip of the opening/closing tool is fitted into the opening/closing tool fitting hole 5b of the opening/closing cam upper projection 5a, and the opening/closing cam is inserted into the leaf spring holder 3. When the opening/closing cam 5 is rotated in the parallel direction and the opening/closing tool is extracted, the leaf spring 4
, 4 clamp the opening/closing cam 5 and the fixing pin 7 having a disc-shaped head, so that the leaf springs 4, 4 engage with the disc-shaped head of the fixing pin 7 and separate upward. There is no.

As mentioned above, the present invention is characterized in that by rotating the opening/closing cam, the leaf spring is opened and closed, and the fixing pin fixed on the receiving material is clamped or released, thereby locking or unlocking. This is a hardware for fixing lattice type treads, and it can be tensioned and removed very easily, so it improves the installation efficiency of lattice type treads, does not require equipment such as gas or electricity for installation, and prevents theft. It has beneficial characteristics.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1A, B, and C are plan views each showing an example of a lattice-type tread plate in which the mounting and fixing hardware of the present invention is used. A sectional view taken along the line A-A and a sectional view taken along the line B-B, FIG. 2A. A', B, B', c, and c' are a partial plan view and a partial side view showing the shape of the vertical strips of the lattice type tread, respectively;
Figures A and B are cross-sectional views, and Figure 4 A, A', and B. B', C, C', D, D', E, E', F, F' are partial plan views and sectional views showing the shapes of the horizontal strips of the lattice type tread;
Fig. 5 is a partial perspective view showing how the conventional lattice-type tread plate fixing hardware is installed, and Fig. 6 is a partial perspective view showing how the mounting fixing hardware of the present invention is installed.
A partial plan view showing an example, Fig. 7 is a partial perspective view showing the assembly order of the key body, Fig. 8 is a front view of the key body, Fig. 9 is a right side view of the key body, and Fig. 10 is an unlocked key body. Partial perspective view showing the state, Fig. 11 (
It is a partial perspective view showing a locked state. In the above figure, 1 is a lattice type tread, a is a vertical strip, a' is a closing plate, a
l is an end plate, b is a horizontal strip, 2 is a key mounting plate, 2a is an opening/closing tool insertion hole, 2b is a plate spring holder fastening hole, 2' is a countersunk screw,
2'' is a nut, 3 is a leaf spring holder, 3a is an opening/closing cam protrusion fitting hole, 3b is a leaf spring holder fastening hole, 3C is a leaf spring holding hole, 3d is a leaf spring receiver, 4 is a plate Spring, 4a is a leaf spring holding hole, 5 is an opening/closing cam, 5a is an opening/closing cam upper projection, 5a' is an opening/closing cam lower projection, 5b is an opening/closing tool fitting hole, 6 is a leaf spring holder, 6a is a leaf spring Holding hole, 6b is opening/closing cam protrusion fitting hole, 7 is fixing pin, 8 is receiving material, 9 is opening/closing tool, 10 is bolt, 11 is upper pressing hardware, 12 is nut, A is the code indicating the key body. be.

Claims (1)

[Scope of utility model registration request] A key body mounting plate 2 having an opening/closing tool insertion hole 2a on the upper surface is fixed in a square hole carved at a predetermined position at the end of the lattice type floor plate 1, and a leaf spring fixed below the key body mounting plate 2. Holding body′
An opening/closing cam 5 having two side surfaces parallel to 3 is rotatably supported by its upper and lower projections 5 a and 5 a'.
The outer periphery of the leaf springs 4, 4 are constantly pressed by the central portions of the leaf springs 4, 4 whose ends are fixed to the leaf spring holder 3, and the tips of the leaf springs 4, 4 are connected to the fixing pins on the receiving member 8. The opening/closing tool insertion hole 2 is arranged so that it can come into contact with both sides of the
By inserting the opening/closing tool 9 into the fitting hole 5b of the upper protrusion 5a exposed from the upper protrusion 5a and rotating the opening/closing cam 5, the leaf springs 4, 4 are opened or clamped with respect to the fixing pin 7. A lattice-type tread fixing hardware characterized by: