JPH02134493A - Metal fixture for aircraft - Google Patents

Abstract

PURPOSE:To secure a mounted apparatus to a floor panel surely by furnishing a holddown plate to fix a metal fitting in divided structure and metal fitting in the condition of coupling to a metal fitting while they are in the condition held in a duct, and providing a fixing means to fix and object to be fixed to the holddown plate. CONSTITUTION:One of the members 5a of a metal fitting 5 is detained with a stud bolt 2, while a column 9 of the other member 5b is inserted into a through hole 15 in a holddown plate 13 and detained with the same stud bolt 2, and thus the metal fitting 5 is detained together, and then the holddown plate 13 and metal fitting 5 are provisionally fixed by a mounting bolt 17. A base plate 19 is put between the holddown plate 13 and a floor panel 1, and the holddown plate 13 and base plate 19 are fixed by a holddown bolt 22 followed by retightening of the mounting bolt 17, and now the metal fitting 5 detained together is retreated toward the holddown plate 13 and base plate 19 fixed on the floor panel 1 and secured to the stud bolt 2 firmly. This ensures that the base plate 19 of the mounted apparatus is fixed to the floor panel 1 firmly in the fore and aft, left and right, and up and down directions.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an aircraft fixing device used for fixing on-board equipment to an aircraft floor panel.

[Prior Art] A floor panel forming the floor surface of an aircraft is generally provided with tie-down rings, stud bolts, etc. for fixing various equipment. When equipment such as the i11+1 device is mounted in the cabin of an aircraft, tie-down rings are used to secure it with ropes, turnbuckles, etc. to prevent it from slipping and falling. As shown in FIG. 5, the stud bolt 2 is provided on a fitting attachment 3 provided on the floor panel 1, and is used for fixing the seat.

[Three Problems to be Solved by the Invention] The position and method of fixing the mounted equipment differs depending on the shape, weight, size, etc. of the equipment. However, the number and position of tie-down rings are determined at the time of aircraft manufacture, so
In some cases, the number of tie-down rings may be insufficient, or
Sometimes the installation location was inappropriate. Furthermore, as described above, the stud bolts 2 provided on the fitting attachment 3 are for fixing the seat, and therefore cannot be used for fixing onboard equipment.

[Means for Solving the Problems] An aircraft fixing device according to the present invention includes a split-structure stopper that engages in a coupled state with a fixing member provided on a floor panel of an aircraft, and a +F metal fitting in a coupled state. It is characterized by comprising a fixing plate that is fixed to the stopper while holding the through hole, and a fixing means that fixes the object to be attached to the fixing plate.

[Operation: The fixing member of the co-floor panel is sandwiched and held by split-structure fasteners, and the fasteners are inserted into the through holes of the fixing plate. In this state, fix the fixing plate to the stopper. Then, the fixing plate is fixed to the object to be attached by the fixing means. The object to be attached is
It is securely fixed to the fixing member of the floor panel through this fixing metal fitting device to the left stand after hunting and also to the upper and lower sides.

[Example] An embodiment of the present invention will be described with reference to FIGS. 1 to 4.

The fixture device 4 of this embodiment (hereinafter abbreviated as device 4).

) is attached to a stud bolt 2 of a fitting attachment 3 provided on a floor panel 1 of an aircraft. The stud bolt 2 as a fixing member is
It is provided at the center of the recess 3a of the fitting attachment 3, and has a flange 2a at the head.

As shown in FIGS. 1 and 3, the stud bolt 2
is engaged with a stopper 5 having a two-part structure. The fastener 5 is composed of a substantially disc-shaped base 6 and a column part 9 consisting of a cylindrical part 7 and a prismatic part 8, and has two pieces 5a that are symmetrical through each part.

It is divided equally into 5b. The split surface of the base 6 of each piece 5a, 5b has a flange 2 of the head of the stud bolt 2.
A recessed portion having a shape matching a is formed. Further, grooves to
, to are formed, and when both pieces 5a and 5b are matched, a through hole 11 is formed, into which a tie-down ring 12 can be inserted. Further, on the upper surface of the base 6, female threads 14 are formed at four positions corresponding to the corners of the prismatic portion 8, respectively, for attaching fixing plates 13, which will be described later.

Next, the cylindrical portion 7 of the fastener 5 that has been assembled and engaged with the stud bolt 2 is inserted into the through hole 15 of the fixing plate 13 and held. The fixing plate 13 is a plate material having a longitudinal dimension approximately equal to the diameter of the fitting attachment 3, and a through hole 15 is formed in the center thereof. Also, through hole 1
Four bolt holes 16 are provided around the 5. The fixing plate 13 is fixed to the stopper 5 by screwing a mounting bolt 17 into the female thread 14 on the base 6 of the stopper 5 through the bolt hole 16. Additionally, bolt holes 18 are provided at the four corners of the fixing plate 13.

Next, between the fixed plate 13 and the floor panel 1, a base plate 19 of a mounted device to be mounted is inserted.

A rectangular notch 20 is formed in the base plate 19, and the surface marking fitting 5 of the device 4 is positioned inside the notch 20. A female screw 21 is formed around the notch 20 of the base plate 19 corresponding to the bolt hole 18 of the fixing plate 13, and the base plate 19 is fixed to the fixing plate 13 by a fixing bolt 22 as a fixing means. has been done.

Next, the assembly procedure of this device 4 will be explained. As shown in FIG. 4, one piece 5a of the stopper 5 is engaged with the stud bolt 2. The column part 9 of the other piece 5b of the stopper 5 is inserted into the through hole 15 of the fixing plate 13, and the tie-down ring 12 is placed in the groove 10 of the other piece 5b. The other piece 5b is engaged with the stud bolt 2 to assemble the stopper 5 together, and the fixing plate 13 is lowered, and the cylindrical part 7 of the integrated stopper 5 is inserted into the through hole 15 of the fixing plate 13. Insert it. Then, as shown in FIGS. 2 and 3, the fixing plate 13 and the stopper 5 are temporarily fixed using the mounting bolts 17. At this time, the female thread 14 of the stopper 5 is under the fixing plate 13 and cannot be seen, but since the corner of the square column part 8 of the stopper 5 corresponds to the position of the female screw 14, the bolt of the fixing plate 13 is Hole 16 and stopper 5
The work of fitting the female threads 14 can be easily performed. Next, insert the base plate 19 between the fixed plate 13 and the floor panel 1,
The fixing plate 13 and base plate 19 are fixed with fixing bolts 22. Then, when the mounting bolts 17 are tightened again, the combined fasteners 5 are pulled up toward the base plate 19 and fixed plate 13 fixed on the floor panel 1, so that the fasteners 5 are attached to the stud bolts 2. Securely fixed to prevent movement. Therefore, the base plate 19 of the )δ mechanical equipment is securely fixed to the floor panel 1 horizontally and vertically, and there is no fear of loosening due to vibration or impact. Furthermore, since the device of this embodiment has a tie-down ring 12, this can be used as required. In this embodiment, the device 4 is attached to the stud holder 2 of the fitting attachment 3, but the fixing member is not limited to this.

[Effect of the invention] According to the present invention, there are the following effects.

(1) The onboard equipment can be securely fixed to the floor panel of the aircraft against vibration and impact.

(2) Since the structure is such that the equipment is fixed by the fixing plate attached to the fixing member of the floor panel via the fastener and the fixing means, the shape, size, and
There are no restrictions on weight, quantity, etc.

(3) It has a simple structure and requires few manufacturing steps, making it suitable for mass production.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing an embodiment of the present invention, Fig. 2 is a plan view of the embodiment, Fig. 3 is a sectional view of the embodiment, and Fig. 4 is a cross-sectional view of the embodiment. FIG. 5, which is a diagram showing the assembly procedure, is a perspective view of the fitting attachment. ! ... Floor panel, 2... Stud bolt as a fixing member, 4... Fixing metal device (device), 5... Stopper, 13-fixing plate, 15... Through hole, 19-...・Base plate as an object to be attached, 22.-Fixing bolt as a fixing means. Patent Applicant Norihiro Nishimura, Agent for the Director of the Technical Research Headquarters, Defense Agency, and Patent Attorney Figure a Figure

Claims (1)

[Claims] A stopper with a split structure that engages in a coupled state with a fixing member provided on an aircraft floor panel; a fixing plate that is fixed to the fastener while the coupled stopper is held in a through hole; An aircraft fixing device comprising a fixing means for fixing an object to be attached to a plate.