JP2003064927A - Hammerlock mechanism for double swing doors for truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hammerlock mechanism for double swing doors for a truck, which prevents generation of an unusual sound and has good appearance. SOLUTION: The hammerlock mechanism for the double swing doors for the truck has a columnar hammerlock arm 21 connected to an end of a lock bar 51 arranged on each of the double swing doors 61, and a reinforcing stay 23 fixed to the hammerlock arm 21 in a manner intersecting the same. Then, the hammerlock arm 21 and the reinforcing stay 23 are provided with a hammerlock portion 20 covered with a predetermined resin except for a joint portion 21a between the lock bar 51 and the hammerlock arm 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hammer lock mechanism for a double door of a truck.

[0002]

2. Description of the Related Art FIG. 5 shows a perspective view of a box-shaped carrier 60 of a truck.

The box-shaped luggage carrier 60 of a truck is provided with a double door 61 on its rear surface so that cargo can be loaded and unloaded through the opening. When the double door 61 is opened, the lock bar 51 is rotated by operating the operation handle 52 to unlock the hammer lock mechanism 50, and when the double door 61 is closed, the operation handle 5 is opened.
The hammer lock mechanism 50 is locked by fixing 2 to the original position.

[0004]

However, the conventional hammer lock mechanism for the door of a truck has the following problems.

As described above, the conventional hammer lock mechanism for the gannon door of a truck can lock the guannon door 61. However, the hammer lock part attached to the kannon door 61 and the box-shaped carrier 60 are provided. It consists of a hook part that fixes the hammer lock part that is fixed to the rear end of the
Since each is made of cast metal such as iron, there is a problem that abnormal noise is generated between the hammer lock part and the hook part due to the vibration of the truck, and further the durability is impaired.
Also, it was not aesthetically pleasing.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a hammer lock mechanism for a double door of a truck, which prevents abnormal noise from occurring and is also aesthetically pleasing. .

[0007]

SUMMARY OF THE INVENTION A hammer lock mechanism for a gannon door of a truck according to the present invention comprises a cylindrical hammer lock arm connected to a terminal of a lock bar provided on the gantry door and a hammer lock arm crossing the hammer lock arm. A reinforcement stay to be fixed, and the hammer lock arm and the reinforcement stay are provided with a hammer lock portion coated with a predetermined resin, except for a connecting portion between the lock bar and the hammer lock arm. did.

In the hammer lock arm, an annular portion made of stainless steel is fixed by welding near the connecting portion.

Further, the hammer lock arm has an annular groove formed near the annular portion.

Further, the hammer lock portion is locked to an aluminum hook portion when locked.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view of a hammer lock mechanism 10 for a gannon door of a truck according to an embodiment of the present invention.

The hammer lock mechanism 10 of FIG. 1 is provided on the rear surface of the box-shaped carrier of the truck, and is shown from above the truck. The hammer lock mechanism 10 is composed of a hammer lock portion 20 and a hook portion 30, and the hammer lock portion 20 is attached by connecting a hammer lock arm 21 to the upper and lower ends of a lock bar 51 of a double door (see FIG. 5). The hook portion 30 is fixed to the rear end of the box-shaped carrier of the truck.

When the double door is closed, the front end of the double door moves as indicated by arrow K, the hammer lock portion 20 moves as indicated by arrow R, and the lock portion 22 receives the lock receiving portion 31 of the hook portion 30. And the lock bar 51 is locked in the rotational direction by the operation handle (see FIG. 5), the hammer lock mechanism 10 is locked, and the double door is also locked.

FIG. 2 shows an external view of the hammer lock mechanism 10 when locked, FIG. 2 (A) shows a plan view of the hammer lock mechanism 10, and FIG. 2 (B) shows the hammer lock mechanism 10. FIG.

As shown in FIG. 2 (A), the hammer lock portion 20 is inserted into the hook portion 30, and the hammer lock mechanism 1 is inserted.
A lock of 0 is performed. Further, as shown in FIG. 2B, in the hammer lock mechanism 10, the annular portion 24 is fixed to the central portion of the hammer lock arm 21, and the lock bar 51 is fixed to the lock bar 51 by the connecting portion 21 a of the hammer lock arm 21. ing. The hammer lock mechanism 10 includes an annular portion 24.
Except for the connecting portion 21a, the resin is coated with a predetermined resin. The coating resin is the hammer lock part 20 and the hook part 30.
It is possible to prevent abnormal noise due to vibrations generated between and, for example, nylon rubber is used. Nylon rubber also has sufficient weather resistance. Also, the hook portion 30
Made of aluminum, it can be lightweight and beautiful.

3A and 3B are external views of the reinforcing stay 23 used for the locking portion 22, FIG. 3A is a plan view of the reinforcing stay 23, and FIG. 3B is a side surface of the reinforcing stay 23. The figure is shown.

As shown in FIG. 3, the reinforcement stay 23 is welded at the joint portions 23a on both sides of the reinforcement stay 23 and the hammer lock arm 21 not covered with resin, and is crossed to the hammer lock arm 21 by welding to make it strong. Fixed.

Therefore, for safety, it is possible to obtain sufficient strength to withstand the lock of the double door.

An annular groove 25 is formed in the hammer lock arm 21 in the vicinity of the annular portion 24. When the hammer lock arm 21 is coated with the above-mentioned resin, the annular groove 25 is also filled with the resin and the hammer lock arm 21
You can get a waterproof effect.

FIG. 4 is an external view of the hammer lock portion 20 in which the hammer lock arm 21 and the reinforcing stay 23 fixed to the hammer lock arm 21 are covered with resin. FIG. 4 (A) shows the hammer lock portion. 20 is a plan view of FIG. 20, and FIG. 4B is a side view of the hammer lock portion 20.

As shown in FIG. 4, the hammer lock portion 20
Since it is covered with resin, it is possible to prevent abnormal noise between the hammer lock portion 20 and the hook portion 30 and also improve durability.

Further, since the hammer lock portion 20 is coated with resin, it is possible to obtain a sufficient aesthetic appearance.

Further, when the annular portion is welded to the conventional hammer lock arm made of iron, the welded portion is exposed above the annular portion, which is aesthetically unfavorable and the welded portion is not exposed. In order to achieve this, the hammer lock arm must be integrally manufactured from stainless steel, which is extremely expensive in cost. In the above embodiment, the annular portion 24 is welded to the hammer lock arm 21, and the welded portion is made of resin. Since it is covered, it is advantageous in terms of cost and can be made aesthetically pleasing.

[0025]

The hammer lock mechanism for a gannon door of a truck according to the present invention has a cylindrical hammer lock arm which is connected to the end of a lock bar provided on the gantry door and a reinforcement which is fixed by crossing the hammer lock arm. For the sake of safety, the stay includes a stay, and the hammer lock arm and the reinforcing stay are provided with a hammer lock portion coated with a predetermined resin except for a connecting portion between the lock bar and the hammer lock arm. It is possible to obtain sufficient strength to withstand the locking of the double door, prevent abnormal noise caused by vibration, and further be aesthetically pleasing.

Further, since the hammer lock arm has the annular portion made of stainless steel fixed to the connecting portion by welding, it is advantageous in terms of cost and aesthetically pleasing.

Further, since the hammer lock arm is formed with the annular groove near the annular portion, it is possible to obtain a waterproof effect on the inside of the hammer lock arm.

Further, since the hammer lock portion is locked to the hook portion made of aluminum when the hammer lock portion is locked, the weight and appearance can be reduced.

[Brief description of drawings]

FIG. 1 is a plan view of a hammer lock mechanism for a double door of a truck according to an embodiment of the present invention.

2A and 2B are external views of the hammer lock mechanism when it is locked and when it is locked, FIG. 2A is a plan view of the hammer lock mechanism, and FIG. A side view is shown.

FIG. 3 is an external view of a reinforcing stay used for a locking portion, FIG. 3 (A) is a plan view of the reinforcing stay, and FIG.
(B) shows a side view of the reinforcing stay.

FIG. 4 shows an external view of a hammer lock part in which a hammer lock arm and a reinforcing stay fixed to the hammer lock arm are covered with resin, and FIG. 4 (A) shows a plan view of the hammer lock part. 4 (B) shows a side view of the hammer lock portion.

FIG. 5 shows a perspective view of a box-shaped carrier of a truck.

[Explanation of symbols]

10 Hammer lock mechanism 20 Hammer lock part 21 hammer lock arm 21a connection part 22 Locking part 23 Reinforcement stay 23a joint 24 Annular part 30 Hook part 31 Lock receiving part 51 Rock Bar

Claims (4)

[Claims] 1. A lock bar and a hammer lock, each of which has a cylindrical hammer lock arm that is connected to an end of a lock bar provided in a double door and a reinforcing stay that is fixed to the hammer lock arm by crossing the hammer lock arm. A hammer lock mechanism for a gannon door of a truck, characterized in that the hammer lock arm and the reinforcing stay are provided with a hammer lock portion coated with a predetermined resin except for a connecting portion with the arm. 2. The hammer lock mechanism for a gannon door of a truck according to claim 1, wherein the hammer lock arm has an annular portion made of stainless steel fixed to the vicinity of the connecting portion by welding. 3. The hammer lock mechanism for a double door of a truck according to claim 1, wherein the hammer lock arm has an annular groove formed near the annular portion. 4. The hammer lock portion is engaged with an aluminum hook portion when locked.
Hammer lock mechanism for the gannon door of the truck described in.