JP2004225419A - Engaging member for truck load box door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an engaging member for a truck load box door of good operability for easily releasing the engaged state of a hook and an operating handle after unlocking a lock. <P>SOLUTION: A key is inserted in the lock 53 of a locking member 30 to rotate an engaging plate 54. The tip part of a connecting pipe 40 pressing the lower end of the engaging hook 33 to the back wall surface of the locking member 30 is thereby spaced, and a pressing block 55 is pressed. The engaging hook 33 is thereby rotated by a rod 57, and the upper part of the engaging hook 33 is projected outside from a through hole 32 to rotate the operating handle 23 upward by the pressing block 33, thus releasing engagement between an engaging groove 12 of an engaging block 11 provided at the lower part, and a projecting block 20 formed at the tip of a rotating shaft 21 of bar shape. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
In particular, the present invention relates to an engagement state of an operation handle engaged by an engagement hook provided in an engagement groove by rotating a pressing block of the lock member after unlocking a lock incorporated in the lock member. And a truck load box door engaging member which can be easily released.
[0002]
[Prior art]
As shown in FIG. 9, a conventional truck packing box door engaging member is provided with two openable and closable doors 60 (only one door 60 on the right side is shown) at the rear of a truck having a packing box. A lower hook 61 having a hole is provided on the outer surface of the door 60, and an upper hook 62 having a hole is rotatably provided at a position above the lower hook 61 so as to be rotatable. Then, a lock (not shown) is installed so that the door 60 can be locked.
[0003]
A rod-shaped operation handle 63 that can be installed between the lower hook 61 and the upper hook 62 is provided outside the door 60, and a connecting plate 64 is pivotally mounted at one end of the operating handle 63, and the other side of the connecting plate 64 is provided. Is provided with a rotating shaft 65 orthogonal to the connecting plate 64, and protruding blocks 66 are provided at both ends of the rotating shaft 65, and each of the protruding blocks 66 is fixed to an upper portion and a lower portion of a mounting frame of the door 60, respectively. Located at block 67.
[0004]
[Problems to be solved by the present invention]
However, the above-described conventional apparatus has the following problems.
As shown in FIG. 10, when the door 60 is opened, first, the lock is unlocked with a key, then the upper hook 62 is rotated upward, and the operation handle 63 is moved upward, whereby the interlocking rotating shaft 65 is moved. Is moved downward, the engagement state between the protruding block 66 and the engaging block 67 at both ends of the rotating shaft 65 is released, and the door 60 is opened, so that the operability is very poor.
[0005]
Therefore, the present invention was filed, in which the lock attached to the lower part of the lock member was unlocked, and then the pressing block was pressed, whereby the engaging hook was rotated in the engaging groove and operated. It is an object of the present invention to provide a truck cargo box door engaging member that can easily release an engaged state by being separated from a handle.
[0006]
[Means for Solving the Problems]
The invention according to claim 1 of the present application is characterized in that a pair of doors 10 that can be opened and closed is provided at the rear of a truck having a packing box, and has an engagement groove 12 provided above and below a mounting frame of each door 10. An engaging block 11 is provided, and inside the engaging groove 12, projecting blocks 20 formed at both ends of a rod-shaped rotating shaft 21 are provided so as to be movable in a vertical direction, and a central portion of the rotating shaft 21 is provided. An end of a connecting plate 22 is mounted orthogonally to the connecting plate 22, and the other end of the connecting plate 22 is an engaging member for a truck cargo box door having one end of an operation handle 23 pivotally mounted thereon. A locking member 30 having a concave groove 301 and an engaging groove 31 is fixed to the surface, and a through hole 32 is formed in an outer wall surface of the locking member 30 and can be rotated by a pivot 34 inside. The engaging hook 33 is provided. An upper portion of the engaging hook 33 can protrude outward from the through hole 32 about a pivot 34 as a center of rotation, and a pair of positioning plates 35 are provided on both lower sides of the engaging hook 33. An upper concave portion 41 and a lower concave portion 42 are respectively provided at upper and lower ends between a fixed rod 36 disposed therebetween and a spring seat 50 fixed to a lower portion of the lock member 30, and a spring 43 is provided therein. An internally provided connecting pipe 40 is provided, and the spring 43 is disposed between the fixed rod 36 and a hooking plate 52 of a positioning plate 51 that is inclined and formed at a lower center of a spring seat 50.
Further, a lock 53 is installed below the lock member 30, and an engagement plate 54 is provided at the rear end of the lock 53 in conjunction with the unlocking and locking operations of the lock. A pressing block 55 rotatably supported by an assembling rod 56 is mounted above the side of the wall surface, and an engaging hook 33 disposed inside the locking member 30 on one side of the pressing block 55 is provided. A rod 57 to be inserted on the inner surface side is provided.
According to a second aspect of the present invention, in the engaging member for a truck cargo box door according to the first aspect, a pressing block 331 having a plurality of oblique sides is provided at an upper part of a middle stage of the engaging hook 33.
According to a third aspect of the present invention, in the engaging member for a truck cargo box door according to the first or second aspect, the locking member 30 has a U-shaped vertical cross section, and the engaging hook 33 has an F-shaped vertical cross section. The spring seat 50 is U-shaped, and the connecting pipe 40 is a hollow square rod.
[0007]
[Action]
The present invention has been made to solve the above problems, and uses a lock in a lock member, and does not require the use of a separate lock.When unlocking, simply insert a key into the lock and press the block. By pressing, the operation handle can be easily rotated upward to open the door, which is very convenient.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a perspective view of an engaging member for a truck packing box door according to the present invention, FIG. 2 is a front view of an engaging member for a truck packing box door according to the present invention, and FIG. 3 is a truck according to the present invention. FIG. 4 is an exploded perspective view of a packing box door engaging member, FIG. 4 is a side sectional view showing an engaged and locked state of the truck packing box door engaging member according to the present invention, and FIG. 5 is a truck according to the present invention. FIG. 6 is a rear view showing the locked state of the packing box door engaging member. FIG. 6 is a sectional view showing the unlocked state of the truck packing box door engaging member according to the present invention. FIG. FIG. 8 is a rear view showing the unlocked state of the truck door engaging member according to the present invention, and FIG. 8 is a side sectional view showing the disengaged state of the truck box door engaging member according to the present invention.
[0009]
As shown in FIGS. 1 to 3, the truck packing box door engaging member according to the present invention includes two openable and closable doors 10 (only one right door 10 is provided at the rear of a truck having a packing box). (Shown), a pair of engagement blocks 11 are provided above and below the mounting frame of the door 10, and an engagement groove 12 is formed inside each of the engagement blocks 11.
[0010]
A protruding block 20 formed at the tip end of a rod-shaped rotary shaft 21 can be positioned inside each of the engagement grooves 12. The connecting plate 22 is attached orthogonally by welding or the like. One end of a square rod-shaped operating handle 23 is pivotally supported by a pin 23a at the tip of the connecting plate 22.
[0011]
The difference between the truck packing box door engaging member according to the present invention and the above-mentioned conventional truck packing box door engaging member is that a U-shape having a concave groove 301 and an engaging groove 31 on the outer surface of the door is provided. By using the lock member 30 of the above, the operation handle can be engaged and locked at the same time, and the structure of separately providing a lock mechanism in the conventional mechanism using the lower hook 61 and the upper hook 62 is improved. The purpose is to facilitate movement of the handle 23.
[0012]
The lock member 30 has a U-shaped vertical cross section as a whole, a through hole 32 formed in the front outer wall surface, and a substantially F-shaped engagement hook 33 provided by a pivot 34 inside. The upper portion of the lock member 30 may protrude outward from the through hole 32 with the pivot 34 as the center of rotation, or may engage with the locking member 30 so as to be received in the concave groove 301 side.
Further, a pressing block 331 having a plurality of oblique sides is provided at an upper portion of the middle stage of the engaging hook 33, and these pressing blocks 331 can move the engaged operation handle 23 upward. it can.
[0013]
In addition, positioning plates 35 are provided on both lower sides of the engaging hooks 33, and fixing rods 36 are provided between the positioning plates 35. The fixed rod 36 is provided with a hollow square rod-shaped connecting pipe 40 having an upper concave portion 41 and a lower concave portion 42 at the upper and lower ends, respectively, and a spring 43 is provided inside the connecting pipe 40.
[0014]
A substantially U-shaped spring seat 50 is fixed to the lower portion of the lock member 30, and extends upward at the center of the lower portion of the spring seat 50 so as to engage with the lower recess 42 of the connecting pipe 40. A positioning plate 51 formed to be inclined is provided, and a hook plate 52 for supporting a lower end of the spring 43 is provided at a middle stage.
[0015]
A lock 53 is incorporated in the lock member 30, and an engagement plate 54 is provided at one end of the lock 53, and the engagement state between the engagement plate 54 and the engagement hook 33 is controlled by a key (not shown). Can control.
On one side of the upper part of the outer wall surface of the locking member 30, a pressing block 55 pivotally supported by an assembling rod 56 is provided. A rod 57 that can be inserted into the rear side of the engaging hook 33 is provided, and the pressing block 55 is rotated about the assembly rod 56 as a rotation center.
[0016]
As shown in FIGS. 1, 4 and 5, when the lock 53 of the locking member 30 is locked by using the truck packing box door engaging member according to the present invention, the engaging plate 54 33, the lower end of the connecting pipe 40 is pressed, and the lower end of the connecting pipe 40 presses the lower end of the engaging hook 33 against the rear wall surface on the front side of the locking member 30. Moves upwardly of the operation handle 23 to prevent the operation handle 23 from rotating. This state is a locked state, that is, the operation handle 23 cannot rotate upward and the door 10 cannot be opened.
[0017]
As shown in FIGS. 5 to 7, when unlocking, a key is inserted into the lock 53 of the lock member 30 and the engagement plate 54 is rotated to thereby lower the lower end of the engagement hook 33 to the lock member. The distal end of the connecting pipe 40 pressed against the back wall surface on the front side of the front 30 is separated, and the pressing block 55 pivotally supported by the assembling rod 56 is pressed toward the back side of the paper in FIG. As a result, the rod 57 rotates the engagement hook 33, and the upper portion of the engagement hook 33 is projected outward from the through hole 32 around the pivot shaft 34, and the operation handle 23 is rotated upward by the pressing block 331. Then, when the engagement between the engaging groove 12 of the engaging block 11 provided on the upper and lower portions of the mounting frame of the door 10 and the protruding block 20 formed at the distal end of the rod-shaped rotary shaft 21 is released, 10 will be able to open.
[0018]
【The invention's effect】
Since the present invention has the above-described structure, the lock provided on the lock member can be used. Therefore, it is not necessary to use a lock prepared separately for the engaging member. Is inserted into the lock attached to the lock member, and the engaging hook is separated from the distal end of the connecting pipe by operation of the engaging plate. It is very convenient because it can be protruded from the through hole in the outer wall surface, the engagement with the operation handle can be released by the pressing block 331, and the operation handle can be easily rotated upward to open the door.
[Brief description of the drawings]
FIG. 1 is a perspective view of a truck packing box door engaging member according to the present invention.
FIG. 2 is a front view of the truck packing box door engaging member according to the present invention.
FIG. 3 is an exploded perspective view of the truck packing box door engaging member according to the present invention.
FIG. 4 is a side cross-sectional view showing the locked state of the truck packing box door engaging member according to the present invention.
FIG. 5 is a rear view showing an engaged state of the truck packing box door engaging member according to the present invention.
FIG. 6 is a side sectional view showing an unlocked state of the truck packing box door engaging member according to the present invention.
FIG. 7 is a rear view showing the unlocked state of the truck packing box door engaging member according to the present invention.
FIG. 8 is a side sectional view showing a disengaged state of an engaging member for a truck cargo box door according to the present invention.
FIG. 9 is a front view of a conventional truck packing box door engaging member.
FIG. 10 is a front view showing a state in which a conventional truck packing box door engaging member is operated.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Door 11 Engagement block 12 Engagement groove 20 Projection block 21 Rotation shaft 22 Connection plate 23 Operation handle 30 Lock member 301 Depression groove 31 Engagement groove 32 Through hole 33 Engagement hook 331 Press block 34 Pivot shaft 35 Positioning plate 36 Fixation Rod 40 Connecting pipe 41 Upper concave part 42 Lower concave part 43 Spring 50 Spring seat 51 Positioning plate 52 Hook plate 53 Lock 54 Engagement plate 55 Press block 56 Assembling rod 57 Rod 60 Door 61 Lower hook 62 Upper hook 63 Operating handle 64 Connection Plate 65 Rotating shaft 66 Projection block 67 Engagement block

Claims (3)

A pair of doors 10 that can be opened and closed is provided at the rear of a truck having a packing box, and an engagement block 11 having an engagement groove 12 provided above and below a mounting frame of each door 10 is provided. Projecting blocks 20 formed at both ends of a rod-shaped rotating shaft 21 are provided inside the engaging groove 12 so as to be movable in the vertical direction. An end member of the connecting plate 22 is attached at right angles, and the other end of the connecting plate 22 is an engaging member for a truck cargo box door having one end of an operation handle 23 pivotally provided,
A lock member 30 having a concave groove 301 and an engagement groove 31 is fixed to an outer surface of the door 10, a through hole 32 is formed in an outer wall surface of the lock member 30, and a pivot shaft is formed inside. An engaging hook 33 rotatable by 34 is provided, and an upper portion of the engaging hook 33 can protrude outward from the through hole 32 about a pivot 34 as a center of rotation,
A pair of positioning plates 35 are provided on both lower sides of the engagement hook 33, and between a fixed rod 36 disposed between the positioning plates 35 and a spring seat 50 fixed to a lower portion of the locking member 30. A connecting pipe 40 having an upper concave portion 41 and a lower concave portion 42 at the upper and lower ends, respectively, and having a spring 43 provided therein,
The spring 43 is disposed between the fixed rod 36 and a hooking plate 52 of a positioning plate 51 formed to be inclined at the lower center of the spring seat 50.
A lock 53 is installed below the lock member 30, and an engagement plate 54 is provided at the rear end of the lock 53 for interlocking with the unlocking and locking operations of the lock. A pressing block 55 rotatably supported by an assembling rod 56 is attached above the side portion, and an inner surface of an engaging hook 33 disposed inside the locking member 30 on one side of the pressing block 55. And a rod 57 to be inserted into the truck packing box door. 2. The truck packing box door engaging member according to claim 1, wherein a pressing block 331 having a plurality of oblique sides is provided at an upper portion of the engaging hook 33. The locking member (30) has a U-shaped vertical section, the engaging hook (33) has an F-shaped vertical section, the spring seat (50) has a U-shape, and the connecting pipe (40) has a hollow square rod shape. 3. The truck packing box door engaging member according to 1 or 2.

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