JPH0128208Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a stay device for an engine hood such as an engine hood of a forklift truck.

Various ideas have been proposed for this type of engine hood stay device, but all of them are capable of automatically locking the engine hood without having to touch the stay when the engine hood is opened. The lock cannot be released without touching the stay when closing the engine hood, and users have strongly requested the development of an engine hood stay device that can automatically lock when opening the engine hood and automatically release the lock when closing the engine hood. It is requested.

The present invention was completed with the aim of providing an engine hood stay device that met the above-mentioned demands. The first stay 2 is pivotally connected to the vehicle body side with its lower end, and the first stay 2 is
The lower end of a second stay 3 whose upper end is pivotally connected to the hood side is pivoted to the upper end of the stay 2, and a stopper 4 is provided protrudingly from the middle part of the second stay 3. The upper end of a third stay 5 is pivotally mounted directly above the third stay 5, and one side edge is formed as a pin guide surface 6 at the lower part of the third stay 5, and a spring member 7 having a chevron-shaped cross section is attached to the other side edge. A pin 10 contacting one side edge of the first stay 2 is loosely inserted into a bent passage 9 formed between the pin guide surface 6 and the spring member 7. be.
In the figure, 11 is a pin that pivotally connects the lower end of the first stay 2 to the vehicle body side, 12 is a pin that pivotally connects the upper end of the first stay 2 and the lower end of the second stay 3, and 13 is a pin that pivotally connects the lower end of the first stay 2 to the vehicle body side. It is a pin that pivotally connects the upper end of the third stay 5 to the middle part of the stay 3, and the first stay 2 shown in the illustrated embodiment is connected to the second stay 3 and the third stay 5 between each other. The second stay 3 is interposed between the upper ends of the arm plates 1a and 1b and pivotally connected with a pin 12. On the other hand, one side of the lower part of the third stay 5 whose lower part is gradually expanded is always interposed between the arm plates 1a and 1b, so that the stays 2, 3, and 5 can be smoothly pivoted relative to each other. It's summery. The spring member 7 shown in the embodiment, which has a chevron-shaped cross section and is attached to the window hole 8 provided in the lower part of the third stay 5, is made of a leaf spring, and only its lower end is welded to one side edge of the window hole 8. However, when the lock is locked, the spring member 7 presses the pin 10 to the upper side of the bending passage 9 to engage the pin 10 with the notch 1, while when the lock is released, the spring member 7 presses the pin 10 to the upper side of the bending passage 9, and when the lock is released, the spring member 7 As the angle increases, pin 10
The stopper 4 may be disengaged from the notch 1 of the first stay 2 at a position where the notch 1 of the first stay 2 coincides with the lower end of the bending passage 9 of the third stay 5. It shall be designed to work in contact with the upper end portion of the stay 5 of No. 3.

With this structure, when the hoodie is closed as shown in FIGS. 1 and 2, the first stay 2 is pivoted with its lower end on the vehicle body side, and its upper end is on the hood side. The angle with the second stay 3 which is pivotally connected to the second stay 3 is minimized, and the bending passage 9 of the lower part of the third stay 5 whose upper end is pivotally connected to the middle part of the second stay 3 is minimized. The pin 10 loosely inserted and in contact with one side edge of the first stay 2
From this state, if you lift the front end to open the hoodie whose rear end is pivotally attached to the vehicle body with a hinge, the hoodie and second stay 3 The pivot point of the first stay 2 is moved clockwise in the figure, and the upper end of the first stay 2 is also moved clockwise via the second stay 3, and the angles of both stays 2 and 3 are as shown in FIG. At the same time as the hood is expanded, the pin 10 in the bending passage 9 of the third stay 5 is guided along one side edge of the first stay 2 to the notch 1 for pin engagement. At this time, the pin 10 has a bending passage 9 formed between the pin guide surface 6 of the window hole 8 and the spring member 7 having a chevron-shaped cross section.
However, when you release your hand from the hoodie, the hoodie pivots counterclockwise due to its own weight and tries to close. At this time, the upper end of the third stay 5 touches the stopper 4 of the second stay 3. 4, the pin 10 is moved over the top of the spring member 7 to the upper side of the bending passage 9, as shown in FIG. When the hoodie is opened, it automatically locks and stays open. Therefore, when attempting to close the opened hoodie, by lifting the front end of the hoodie and pivoting the hoodie slightly in the direction of opening, the third stay 5 is moved by the stopper 4 as shown in the figure. Because it is prevented from moving to the left,
As shown in FIG. 5, the pin 10 is pushed up by the spring member 7 and disengages from the notch 1, and the stay device is unlocked.Then, the hoodie is automatically closed by its own weight. Therefore, when closing a closed hoodie, the lock is automatically released by simply lifting the hoodie slightly, so the operation of closing the hoodie is easy and there is no danger of getting your hands caught.

Therefore, with this invention, not only can the engine hood be automatically locked without having to touch the stay when the engine hood is opened, but the lock can be automatically released when the engine hood is closed by simply lifting the engine hood slightly. It can be performed accurately by simply performing simple operations, and its simple structure means that it can be provided at low cost, and together with this, it has extremely great practical value.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a partially cutaway side view with the hood closed, and FIG.
The figure is a partially cutaway side view of the main parts, FIG. 3 is a partially cutaway side view showing the process of opening the hood, and FIG. 4 is a partially cutaway side view showing the hood opened and locked. FIG. 5 is a partially cutaway side view showing the unlocked state. 1... Notch for pin engagement, 2... First stay, 3... Second stay, 4... Stopper, 5
...Third stay, 6... Pin guide surface, 7... Spring member with chevron-shaped cross section, 8... Window hole, 9... Bent passage, 10... Pin.

Claims (1)

[Scope of utility model registration request] A first stay 2 having a notch 1 for pin engagement on one side edge of the intermediate portion is pivotally connected to the vehicle body side with its lower end, and the upper end of the first stay 2 is pivotally connected to the hood side at the upper end of the first stay 2. The lower end of the second stay 3 is pivoted, and a stopper 4 is provided at the middle part of the second stay 3.
The upper end of a third stay 5 is pivotally connected to a position directly above the stopper 4, and the lower part of the third stay 5 has one side edge formed as a pin guide surface 6 and the other side edge. A window hole 8 is provided in which a spring member 7 having a chevron-shaped cross section is attached, and a pin 10 in contact with one side edge of the first stay 2 is inserted into a bending passage 9 formed between the pin guide surface 6 and the spring member 7. The engine hood stay device is characterized by the fact that it is inserted into the engine hood.