JP2955792B2 - Lid latch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hook for a lid which is removably hooked to an opening having a long side and a short side provided in a cable tray or various equipments and containers. More particularly, the present invention relates to a hook that can be easily attached to and detached from a lid and has a simple structure.

[0002]

2. Description of the Related Art Conventionally, cable trays and ducts have been used for laying a large number of cables in laying electric wiring. The cable tray and the like are composed of an elongated body composed of a bottom plate and both side plates, and a lid for covering an upper opening thereof for protection of the laid cables.
The lid is made of a rectangular metal plate of a fixed length adapted to the cable tray, and the desired number of sheets are placed along the cable tray without gaps. In many cases, the lid of such a cable tray is usually simply placed on the main body, but when it is installed in a place where there is strong wind or vibration, the lid is blown off or slips off the main body. In order to prevent this, the lid needs to be detachably hooked to the main body by some means. In addition, similar locking measures are taken for lids that removably cover openings of various devices and containers.

[0003] One of the conventional methods for detachably hooking the lid to the main body is, for example, a method in which one edge of an opening of the main body and an end of the lid are rotatably connected to each other by a hinge. Is attached to the end opposite to the lever and a hook for hooking it to the outside of the edge of the opening. In the case of a cover such as a long cable tray, a plurality of such hooking means are attached along the longitudinal direction.

[0004]

However, such a conventional method of latching the lid requires machining of the hinge portion and the lever / hook portion of both the lid and the main body. However, there is a problem that the number of steps is large and costs are high. In addition, the necessary number of hinges, levers, and hooks need to be welded or bolted to the main body or the lid, and in some cases, the lid material or the main body may be deformed or the strength may be reduced. Therefore, the present invention solves the problems of the conventional latching method, and provides a latch having a simple structure which can be easily attached to the lid and does not require any processing on the main body side. Is the subject.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a lid hooking device for attaching to a lid hooked to an opening of a main body. The hook includes an operating shaft having an operating head and a shaft, a pin inserted into the operating shaft, and an elongated hooking plate orthogonally engaged with the operating shaft. The operation shaft body has a through hole for inserting the pin body in the axial direction, and a cutout groove is provided on a side portion of the operation shaft body so that a part of the through hole is exposed. . Furthermore, only the insertion hole through which the shaft portion of the operating shaft body can be inserted, and the portion of the shaft portion having the notch groove can move from the insertion hole in the direction parallel to the plate surface of the locking plate. A slit is connected to the insertion hole. Further, a pin groove is provided on a side edge of the slit so that a pin body inserted in a through hole of the operation shaft body can be inserted. In a preferred embodiment of the present invention, the latching plate is formed by an elongated plate spring that is gently curved in the long side direction, and the slit is provided along the long side direction, and a pair of protrusions is provided near both sides thereof. The ridge is formed perpendicular to the long side direction.

[0006]

According to the present invention, the operating member is inserted into an insertion hole provided in the lid, and after the pin body and the engaging plate are combined, or only the engaging plate is combined, the engaging plate is provided. Slide the notched groove part of the shaft part into the slit in parallel to the plate surface,
Next, the operation shaft body can be fixed to a predetermined position of the lid member by exposing the pin body to the notch groove portion and fixing the shaft portion to the hook plate so as not to slide. Then, in order to hook a lid to which such a hook is fixed to the opening of the target body, first, the long side of the hook plate is made parallel to the long side of the opening of the body, and the lid is closed. Place on top of opening. Next, the head of the operating shaft is rotated, and the latch plate fixed to the operating shaft by the pin body is rotated by 90 degrees, and the leading end of the long side of the latch plate is inserted under the opening edge. I do. Thereby, the lid can be hooked on the body to cover the opening. To remove the lid from the opening, hold the head of the operating shaft
It is sufficient that the end of the long side of the latch plate is removed from below the edge of the opening to make it parallel to the long side of the opening and then lifted upward.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view showing an example of the latch of the present invention. The latch 1 comprises an operating shaft 2, a pin 3 and a latch plate 4. The operation shaft body 2 has a disk-shaped operation head 5 having an enlarged diameter and a shaft portion 6 provided coaxially and integrally therewith. A driver groove 7 for rotating operation is provided on the upper surface of the operation head 5, and a pair of notch grooves 8 each having a U-shaped cross section are provided on both sides of the shaft portion 6.
Further, in order to insert the pin body 3, the operation head 5 and the shaft portion 6 are provided with a through hole 9 penetrating them in the axial direction. The cross-sectional shape of this through hole 9 is substantially the same as the cross-sectional shape of a pin body described later, and is configured so that the pin body can be fitted by hitting with a hammer or the like, and a part thereof is exposed by the notch groove 8. I have. The operation head 5 may have a normal nut shape which is rotated by a spanner or the like.
In that case, the driver groove 7 is omitted.

The pin body 3 is a flat rectangular parallelepiped. The outer peripheral surfaces of both sides in the long side direction are formed in an arc shape, and a stopper body 10 is provided at the bottom. Further, a pair of arc-shaped projections 11 are provided to project upward from both sides in the long side direction of the rectangular parallelepiped, and a concave groove is formed therebetween. When the pin body 3 is inserted into the through hole 9 of the operation shaft body 2, the stopper body 10 contacts the bottom of the shaft body 6 to position the pin body 3 so that the pin body 3 is over-inserted. To prevent. The concave groove forms a bottom surface having the same depth as the driver groove 7 of the operation head 5 when the pin body 3 is positioned as described above.
It is designed so as not to hinder the insertion of the driver into the vehicle.

The latch plate 4 is formed by an elongated rectangular plate spring, and has a shape in which both ends in the long side direction are slightly upwardly curved in an arc shape. An insertion hole 13 for inserting the shaft portion 6 of the operation shaft body 2 is provided at a position slightly deviated from the center portion of the hook plate 4, and the slit 1 is formed in the insertion hole 13.
4 extend in parallel with the long side direction of the latch plate 4 and communicate with each other. At its end, an arc having the same radius of curvature as the outer periphery of the shaft 6 is formed. The width of the slit 14 is smaller than the outer diameter of the shaft 6 so that only the narrow portion of the shaft 6 where the cutout groove 8 is provided can pass. A pair of pin grooves 1 are formed on both sides of the slit 14.
5 is formed so as to be orthogonal to it.

In the vicinity of both ends in the longitudinal direction of the latch plate 4, ridges 16 are respectively provided orthogonal to the longitudinal direction. The ridge 16 protrudes upward in FIG. 1 and its edge is formed as a gentle slope. It is sufficient that the inclined surface exists at least at the left and right ends 17 of the ridge 16. In the example of FIG. 1, notch grooves 8 are provided on both sides of the shaft portion 6 in contrast, but the notch grooves 8 may be provided only on one side of the shaft portion 6. In that case, the shape of the pin body 3 and the shape of the latch plate 4 are adapted to the shape, for example, the pin body 3 shown in FIG.
Is divided into two in the vertical direction. At the same time, hook plate 4
Similarly, the pin groove 15 provided on only one side is provided.

Next, a procedure for attaching the latch shown in FIG. 1 to the lid will be described with reference to FIGS. First, as shown in FIG. 2, the shaft portion 6 of the operating shaft body 2 is inserted into an insertion hole provided in the lid 20.
Is inserted from above, and only a part of the pin body 3 is fitted into the through hole 9 of the shaft portion 6 with a hammer or the like before or afterwards from below. The protrusion of the pin body 3 extends upward.
1 is set shortly before reaching the notch groove 8. Next, the hook plate 4 is inserted into the shaft portion 6 from below using the insertion hole 13 as shown by an arrow.

Next, as shown in FIG. 3, the latch plate 4 is pushed up in the direction of the arrow until the insertion hole 13 reaches the position of the notch groove 8 of the shaft portion 6, and then the latch plate 4 is moved to the left in the figure. When pushed, the slit 14 engages with the notch groove 8 of the shaft portion 6 and slides relatively, and the latch plate 4 moves to the left. The movement is stopped at the longitudinal end of the slit 14, and the pin groove 15 provided on the side of the slit at that position is configured to coincide with the axis of the shaft 6.

Next, as shown in FIG. 4, the bottom of the pin body 3 is hit with a hammer or the like, so that the stopper body 10 is
Until it comes into contact with the bottom surface of the through hole 9. As a result, the side portion of the pin body 3 is exposed to the notch groove 8 of the shaft portion 6, and at the same time, the pin body 3 is inserted into the pin groove 15 provided in the slit.
It is protruded and inserted inside. In this state, the operating shaft body 2 is locked at the slid position (lock position) of the latch plate 4, is prevented from returning to the position of the insertion hole 13, and the latch member is completely located at the predetermined position of the lid 20. Fixed. Note that the operation shaft 2 before the pin body 3 is attached may be inserted into the latch plate 4 and slid to a predetermined position, and then the pin body 3 may be fitted into the through hole 9 of the operation shaft body.

FIGS. 5 and 6 are a cross-sectional view and a perspective view, respectively, showing a state in which the lid with the hooks attached thereto is hooked to the main body and mounted. In order to change from the state of FIG. 4 to the state of FIG. 5 or FIG. 6, first, a driver is inserted into the driver groove 7 of the operation head 5, the operation shaft 2 is rotated 90 degrees, and the longitudinal direction of the latch plate 4 is changed. The lid 20 is placed so as to be aligned with the opening 22 of the main body 21 in a direction perpendicular to the paper surface. Then, when the driver is again inserted into the driver groove 7 of the operation head 5 and rotated by 90 degrees, both ends in the longitudinal direction of the latch plate 4 are inserted into the edges of the opening 22, and the lid 20 is engaged with the main body 21 and attached. Is done.

At this time, the latch plate 4 presses the edge of the opening 22 from below by the action of the leaf spring, and the latch plate 4 and the lid 20 are pressed.
And the edge of the opening 22 is strongly clamped between the
Is securely hooked to the main body 21. Since the ridges 16 provided near both ends of the latch plate 4 are provided with the inclined surfaces as described above, the opening portions 2 of the latch plate 4 are operated by the action.
The insertion operation to the edge of 2 is performed more smoothly.
On the other hand, in order to remove the lid from the main body from the state of FIG. 5, first, the operation head 5 of the operation shaft body 2 is rotated by 90 degrees to remove the locking plate 4 from the edge of the opening 22 and open the long side direction. Make a right angle with the long side of the part 22. Next, the lid 20 may be lifted upward. Thereby, the lid 20 is separated from the main body.

When removing the hook from the lid, see FIG.
And the reverse of the procedure of FIG. That is, first, the pin body 3 exposed on the upper surface of the operation head 5 of the operation shaft body 2 is hit downward by a driver or the like, and the pin body 3 fitted into the through hole 9 of the shaft body 6 is pulled out, or Pull out to the lower surface of the notch groove 8. Next, the slit 14 of the latch plate 4 is slid with respect to the operating shaft 2 to move to the position of the insertion hole 13, and the operating shaft 2 is removed from the latch plate 4.
Thereby, the latch is separated from the lid.

[0017]

According to the present invention, the following advantages can be obtained by the above-mentioned structure. 1) It is easy to attach to the lid with a simple structure. 2) It can be fixed to the lid with stability and removability. 3) Since there is no need to perform any special processing on the body side, and no processing such as welding or bolting is required for the lid,
There is no possibility that the main body or the cover material is deformed or the strength is reduced.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an example of a latch of the present invention.

FIG. 2 is a sectional view showing a procedure for fixing the latch shown in FIG. 1 to a lid.

FIG. 3 is a sectional view showing a procedure for fixing the latch shown in FIG. 1 to a lid.

FIG. 4 is a cross-sectional view showing a procedure for fixing the hook shown in FIG. 1 to a lid.

FIG. 5 is a cross-sectional view showing a state in which a lid to which a hook is fixed is hooked on an opening of the main body.

FIG. 6 is a perspective view showing a state in which a lid to which a hook is fixed is hooked on an opening of the main body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hook 2 Operating shaft 3 Pin body 4 Hanging plate 5 Operating head 6 Shaft 7 Driver groove 8 Notch groove 9 Through hole 10 Stopper body 11 Projection 12 Punching groove 13 Insertion hole 14 Slit 15 Pin groove 16 Protrusion Article 17 End 20 Lid 21 Body 22 Opening

Claims (1)

(57) [Claims] 1. A latch for attaching to a lid which latches to an opening of a main body, comprising: an operation head (5) and a shaft (6).
And an operation shaft body (2) having a through hole (9) penetrating them in the axial direction, and a side portion of the operation shaft body (2) formed so that a part of the through hole (9) is exposed. A notch groove (8), a pin body (3) inserted into the through hole (9) of the operating shaft body, and an elongate locking plate (20) which is orthogonally engaged with the operating shaft body (2). 4), and the hook plate (4) has an insertion hole (1) through which a shaft portion (6) of the operation shaft body can be inserted.
3) and a slit (1) in which only the portion of the shaft portion (6) having the notch groove (8) can move in a direction parallel to the plate surface.
A pin groove (4) is connected to the insertion hole (13), and a pin groove (3) can be inserted through a side edge of the slit (14) into the pin body (3) inserted into the through hole (9) of the operation shaft body. 15) A hook for a lid provided with 15).