JPH0248320Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an aircraft cart restraint device.

Hand carts are used onboard aircraft to serve food, etc. to passengers, and when not in use, these carts are stored in a cart storage area located in one corner of the aircraft. . If the stored cart suddenly tilts during flight, there is a risk that the cart may run out of control and cause damage to the inside of the aircraft, so conventional restraints have been used to prevent the cart from running out of control. equipment was provided.

First, the conventional technology and its problems will be described.

Conventional restraint devices of this type are capable of restraining and releasing the restraint of a cart by engaging and disengaging a stopper of the restraint device provided on the underside of the cart with a restraint fitting protruding from the floor surface inside the cart storage. was configured to do so. Therefore, it is necessary to provide a restraint device for all carts, which increases the cost of the cart and increases the weight of the cart.Furthermore, the floor of the cart storage is required to provide restraints on the floor. It also had the disadvantage that it had to be reinforced.

This point was pointed out in the conventional example.

The present invention was made in view of the above-mentioned circumstances, and its technical means are as follows. That is, the aircraft cart restraint device according to the present invention includes the following bracket, stopper support arm, stopper, engagement protrusion, engagement member, etc.

First, the bracket is installed on the lower surface of the ceiling in the cart storage in an empty space near the entrance that does not interfere with cart storage. The stopper support arm has a proximal end pivotally attached to the bracket, and is rotatable in the vertical direction. The stopper is provided at a distal end of the stopper support arm located on the outside and in front of the bracket, protrudes at least on either the left or right side substantially orthogonally to the stopper support arm, and is stored in the cart storage. The cart can be restrained based on the downward rotation of the stopper support arm. The engagement protrusion is provided to protrude from the base end of the stopper support arm. The engagement member is made of a leaf spring whose base end is fixed to the lower surface of the ceiling and whose distal end has a plurality of grooves bent at predetermined intervals into which the engagement protrusion can engage. The grooves are provided at intervals that restrict the rotation range of the stopper support arm and position and hold the stopper at the upper restraint release position and the lower cart restraint position.

The present invention consists of such a means, and it is possible to store and restrain a cart that is not equipped with a restraining device in a cart storage shed that does not require any reinforcement of the floor.
The purpose is to propose a restraint device for aircraft carts.

Examples will be described below.

That is, the present invention will be explained below based on the embodiments shown in the drawings. FIG. 1 is an explanatory diagram showing a state in which a cart is stored and restrained in a cart storage. Second
The figure is a front view of the embodiment of the restraint device, and FIG. 3 is a side sectional view taken along line A--A in FIG. 2. FIG. 4 is a side sectional view of another embodiment.

First, we will discuss its structure etc.

In the figure, 1 is a cart storage, and 2 and 2 are carts stored in the cart storage 1. 3 is a stopper, and this stopper 3 is attached to the tip of the stopper support arm 4 in both left and right directions.
The stopper 3 is provided so as to protrude substantially perpendicularly to the
A buffer member 3a made of an elastic material is provided at both ends of the
is crowned. In addition, a shaft insertion hole 8 is bored in the base end, which is the rear end of the stopper support arm 4.
A shaft 7, which will be described later, is inserted through this shaft insertion hole 8, and the stopper support arm 4 is pivotally connected to the next brackets 5, 5 so as to be rotatable in the vertical direction.

Reference numerals 5 and 5 denote a pair of brackets, and these brackets 5 and 5 are located at the center of the cart storage 1, that is, as shown in the figure, the two carts 2 and 2 that are stored therein.
They are installed vertically facing the lower surface of the ceiling at an appropriate distance in an empty space near the entrance that does not interfere with storage. Reference numerals 6, 6 are shaft mounting holes drilled in the brackets 5, 5, and a horizontal shaft 7 is inserted between the two shaft mounting holes 6, 6, and is pivotally mounted to this shaft 7. Stopper support arm 4
is adapted to rotate vertically between the brackets 5, 5. The stopper 3 is attached to brackets 5, 5 as shown in the figure with respect to the stopper support arm 4.
The stopper support arm 4 is provided at the front end of the stopper support arm 4, and is capable of restraining the carts 2, 2 stored in the cart storage 1 based on the downward rotation of the stopper support arm 4. .

30 is an engagement protrusion, and this engagement protrusion 30 is
The base end of the stopper support arm 4, that is, its shaft insertion hole 8
It is protruded in a predetermined direction from the rear of the vehicle. That is, in the embodiment shown in FIG. 3, the engaging protrusion 30 projects substantially perpendicularly to the stopper support arm 4, and in the other embodiment shown in FIG. It will be set up. The engagement protrusions 3 and 33 can be engaged with each other.

The engagement member 31 is a so-called detent mechanism formed by bending a leaf spring. The base end thereof is fixed at an appropriate position on the lower surface of the ceiling, and a plurality of concave grooves 33, 33, which can be engaged with the tips of the engagement protrusions 30, are formed at a predetermined interval in the distal end thereof. It has an engaging portion 32. Engagement member 31
In the embodiment shown in FIG. 3, the grooves 33 are arranged substantially horizontally along the ceiling, so that the grooves 33, 33 can be engaged with the engagement protrusions 30 shown in the figure.
In the other embodiment shown in FIG. 4, the recessed grooves 33, 33 can be engaged with the engagement protrusions 30 shown in the figure since they are suspended substantially perpendicularly from the ceiling.

The concave grooves 33, 33 restrict the rotation range of the stopper support arm 4 through the engaged engagement protrusion 30, and move the stopper 3 to the lower cart restraint position (first
(See the solid line display in Figures 2 and 3 and the imaginary line display in Figures 2 and 4), and the upper restraint release position (see the imaginary line display in Figure 3 and the solid line display in Figures 2 and 4) They are provided at intervals for positioning and holding, respectively. In other words, positioning and holding of the cart restraining position and the restraining release position of the stopper 3 is performed by the engaging protrusion 3.
This is done by engaging the grooves 33, 33 of the engaging member 31.

The above is the explanation of the configuration, etc.

The operation etc. will be explained below.

In the present invention, by gripping the stopper 3 that is positioned and held at the cart restraint position or the restraint release position and forcibly rotating the stopper 3, the engagement protrusion attached to the stopper support arm 4 is moved. 30
resists the elastic force of the leaf spring of the engagement member 31 and is removed from one of the grooves 33 and engaged with the other groove 33, and the stopper 3 is held at the restraint position or the restraint release position. Ru.

That is, for example, when the cart 2 is stored in the cart storage 1 and the stopper 3 is in the lower restraining position, the following will occur. In this case, the stopper 3 is first grasped and forcibly rotated upward (in the direction of releasing the restraint). By this rotation of the stopper 3, the engaging protrusion 30 is moved from the one groove 33 with which it had been engaged until then, through the stopper support arm 4, against the elastic force of the leaf spring of the engaging member 31. It is removed, slides through the engaging portion 32, and is engaged with the other groove 33, whereby the stopper 3 is once positioned and held at the upper restraint release position via the stopper support arm 4.

Then, the cart 2 is stored in the cart storage 1. Next, in order to restrain the cart 2 stored in the cart storage 1, grasp the stopper 3 held in the upper restraint release position and force the stopper 3 downward (restraint direction). This rotation of the stopper 3 causes the engagement protrusion 30 to move through the engagement member 3 via the stopper support arm 4.
It is removed from the other groove 33 with which it was once engaged against the elastic force of the first leaf spring, slides through the engaging portion 32, and is engaged with the one groove 33. The stopper 3 is then positioned and held at the lower restraining position via the stopper support arm 4, thereby restraining the cart 2 immovably. Therefore, even if the aircraft suddenly tilts during flight, the cart 2 stored in the cart storage 1 will not run out of control inside the aircraft and be damaged, thereby preventing accidents. .

The above is the explanation of the operation, etc.

First, in the embodiment described above,
A restraining device is provided with a stopper 3 protruding from the left and right sides at the tip of the stopper support arm 4, and is installed on the lower ceiling of the center of the cart storage 1 using its bracket 5, etc., so that two carts 2 can be held at the same time. Although the configuration for restraining has been described, the present invention is not limited to this. For example, depending on the size of the cart storage 1 and the number of carts 2 to be stored, a restraining device in which a stopper 3 is protruded from the tip of the stopper support arm 4 only in one direction, either left or right, may be used. The structure may be such that a bracket 5 or the like is provided on the lower surface of the ceiling, such as on the side of the storage 1, to restrain one cart 2.

Second, if you add the following locking member,
The positioning and holding of the stopper 3 can be performed more reliably and stably. That is, a locking member having, for example, a vertical elongated hole is attached near the front end of the bracket 5, and the distal end of the stopper support arm 4 rotates in the vertical direction within the elongated hole. The upper and lower ends are allowed to abut against the tip of the stopper support arm 4 at predetermined upper and lower positions, respectively. Therefore, by such a locking member, the rotation range of the stopper support arm 4 is additionally restricted in addition to the grooves 33, 33 of the engaging member 31 described above, and the stopper 3 is restricted by the upper restraint. An advantage of auxiliary positioning and holding at the release position and the lower cart restraint position is that these operations can be performed more reliably and stably.

Next, the effects of the present invention will be described.

That is, as described in detail above, according to the aircraft cart restraint device of the present invention, the stopper is provided at an appropriate position on the lower surface of the ceiling of the cart storage, and is rotatable in the vertical direction and is capable of maintaining the restraint position and the restraint release position. , by only rotating it in the vertical direction.
It is now possible to restrain and release carts. Therefore, there is no need to install a special restraint device on the cart, which is advantageous in terms of cost and weight.Furthermore, there is no need to reinforce the floor to install restraint fittings on the floor of the cart storage, which is also advantageous in terms of cost. , its effects are great.

[Brief explanation of drawings]

The drawings illustrate an embodiment of the invention. FIG. 1 is an explanatory diagram showing a state in which a cart is stored and restrained in a cart storage. FIG. 2 is a front view of the embodiment, and FIG. 3 is a side sectional view of the embodiment. FIG. 4 is a side sectional view showing another embodiment of the present invention. 1...Cart storage, 2...Cart, 3...Stopper, 3a...Buffer member, 4...Stopper support arm, 5...Bracket, 6...Shaft mounting hole, 7...
Shaft, 8...Shaft insertion hole, 30...Engaging protrusion, 31...
...Engagement member, 32...Engagement portion, 33...Concave groove.

Claims (1)

[Scope of Claim for Utility Model Registration] In a cart storage, a bracket is provided on the lower surface of the ceiling in an empty space near the entrance that does not interfere with cart storage, and the base end is pivotally attached to the bracket by a shaft. , a stopper support arm that is rotatable in a vertical direction; and a stopper support arm that is provided at a distal end of the stopper support arm located outside and in front of the bracket, and that is substantially orthogonal to the stopper support arm on at least one of the left and right sides. a stopper that protrudes from the cart and is capable of restraining a cart stored in the cart storage based on the downward rotation of the stopper support arm; an engagement protrusion that protrudes from the base end of the stopper support arm; and a ceiling. an engaging member made of a leaf spring, the base end of which is fixed to the lower surface, and the distal end of which is bent at a predetermined interval to form a plurality of grooves into which the engaging protrusion can engage; An aircraft cart characterized in that the concave grooves are provided at intervals that restrict the rotation range of the stopper support arm and position and hold the stopper at an upper restraint release position and a lower cart restraint position. restraint device.