JPH04325339A - Accessory chamber for vehicle - Google Patents

Abstract

PURPOSE:To prevent an accessory chamber installed on a vehicle from being vibrated. CONSTITUTION:A cabinet 3 is indirectly supported and connected to a vehicle side 7 with dampers 11 and springs 19, 19a. The damper 11 is connected in series to a turnbuckle 15, and the damping characteristic can be adjusted. A universal joint, e.g. a universal coupler, is used to connect the damper 11. The expansion/shrinkage of the dampers 11 is prevented from being restricted depending on the swing direction of the cabinet 3.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auxiliary room for a vehicle having a vibration-isolating structure.

0002

2. Description of the Related Art Accessory rooms of vehicles, such as washrooms and toilets, have been integrated with the vehicle. It did not have a structure that could proactively and independently suppress the shaking. However, there were some models in which the toilet itself was connected to the vehicle with a universal joint to isolate the shaking of the toilet from the shaking of the vehicle.

0003

[Problems to be Solved by the Invention] Therefore, in the conventional auxiliary chamber, the shaking of the vehicle directly causes the auxiliary chamber to shake. Furthermore, even if the toilet bowl itself was designed to remain horizontal, as long as the attached room was shaking, the body would have to resist the shaking, and in the washroom, it was necessary to reduce the amount of water in the basin. The present invention has been made in view of the above-mentioned circumstances, and its object is to provide an auxiliary chamber for a vehicle in which the auxiliary chamber and the vehicle are separated from each other so that their oscillations do not interfere with each other.

0004

[Means for Solving the Problems] In order to achieve the above object, the auxiliary chamber of a vehicle according to the present invention has a frame body for the auxiliary chamber supported within one space of the vehicle via a telescopic spring, and an arbitrary A damper is arranged in parallel in the direction of expansion and contraction of the spring, and the elastic vibration of the spring is damped by the damper, and a universal connector such as a swivel coupler or a universal joint is used to connect the damper. In order to adjust the damping to end the vibration, the damper is connected in series with a turnbuckle in the outside space of the frame, and one end of this series body is connected to the frame side and the other end is connected to the vehicle side. . Further, as a specific example of the support means, the frame is
The bottom part was secured to the vehicle by a telescopic spring connected laterally, and the frame body was suspended from the vehicle by springs and dampers.

[0005]

[Operation] Since the frame bodies are connected through an elastic spring, there is a spring between the vehicle and the frame body, and there is no direct connection between the vehicle and the frame body. The moving speed and acceleration when the vehicle shakes cancel each other out as the deformation force of the springs, and the indirect frame support structure uses a damper to attenuate the secondary vibrations caused by the spring's restoration, thereby reducing the relative movement between the frame and the vehicle. Attenuate and absorb in space. Adjusting the damping of the damper is also useful as a countermeasure against aging, and the spring constant is made variable with the turnbuckle.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows details of an auxiliary room 1, such as a washroom or toilet, including a box frame-shaped frame 3 and its supporting structure. A support shaft 5 is passed horizontally to the bottom of the frame 3, and the frame 3 is fixed so as to be placed on the support shaft 5. On the other hand, a space 9 is formed on the vehicle side 7 to form an auxiliary chamber 1. On the vehicle side 7, the part forming the space 9 may have a chamber structure or a frame structure, and the space 9 that accommodates the frame 3 in a swingable manner.
have. A frame 3 is housed in this space 9, and both ends of its support shaft 5 are suspended from the ceiling or upper part of the space 9 by dampers 11. Details of the locking metal fitting 13 for supporting will be described later. A hanging shaft 17 having a damper 11 and a turnbuckle 15 connected in series is connected between the locking fitting 13 and the support shaft 5, and the frame body 3 is suspended. damper 11
uses a combination of a damper rod with damping on the tension side and a contraction tension spring. Therefore, by adjusting the turnbuckle 15, the spring constant can be changed, and the damping characteristics of the damper 11 can be changed. Further, a spring 19 is also attached laterally from the end of the support shaft 5, that is, in the horizontal direction. The spring 19 is a coil spring inserted between the end of the support shaft 5 and the side wall of the space 9. Therefore, the spring 19 can alleviate the horizontal vibration of the frame body 3. With a similar configuration, a coil spring 19a is also sandwiched between the top surface of the frame body 3 and the ceiling surface of the space 9. The spring 19a is shown in FIG. A fitting protrusion 21 having an outer diameter large enough to fit into the inner diameter of the coil of the coil spring 19a is provided on opposing surfaces of the vehicle side 7 and the frame body 3 side. A damper that fits the protrusions 21, 21 outside the inner diameter of the spring 19a, and compresses the spring 21 slightly so that the spring 21 is sandwiched between the outer surfaces of the upper ends of the frame 3, and suspends the frame 3 by the springs 21. A conflicting force is applied to the tension of 11. This prevents the secondary vibration of the damper 11, that is, the vibration of the spring of the damper 11, and the direct collision between the upper end and the vehicle side 7 due to the vertical movement of the frame body 3. Of course, it also serves to prevent collision between the bottom of the frame 3 and the vehicle side 7. As a precaution, an elastic body such as rubber or a spring may be provided between the bottom of the frame body 3 and the vehicle side 7. In this case, the elastic body may be attached to the frame body so as not to affect the characteristics of the damper 11. 3 or the vehicle side 7. Next, FIG. 3 shows the locking metal fitting 13 mentioned above. The locking metal fittings 13 have sufficient strength to withstand the load required to suspend the frame 3, and two connecting metal fittings 23 each having a U-shaped cross section are connected back to back with bolts 25. A flexible coupler 27 rotatably connected around the axis of the bolt 24
It has become. Then, a bolt is passed through the through hole 29 that passes horizontally through the opened vertical side of each metal fitting 23, and the hanging shaft 17, which is on the extended axis of the damper 11, is attached to the vehicle side 7 using the flexible coupler 27. They are connected to allow free swing direction. That is, the universal coupler 2
There is a hook 31 projecting toward the vehicle on the upper side of the connecting metal fitting 23 that constitutes 7, and the upper connecting metal fitting 23 is bolted to this, and the lower connecting metal fitting 23 is attached to the bolt 25a. A hanging shaft 17 is connected to the hanging shaft 17. Hook 31 and hanging shaft 17
The connecting bolts 25a and the like are loosely fitted into the through holes 29 to allow the swinging of the hanging shaft 17 and release the bending moment of the shaft, while separating the swinging of the vehicle side 7 and the swinging of the frame body 3. It's a behavior. Including this vibration behavior, the spring 19,1
9a and damper 11 quickly end the secondary vibration behavior,
It also cushions the impact.

[0007]

[Effects of the Invention] As explained in detail above, according to the vehicle accessory chamber according to the present invention, the frame body for the accessory chamber is indirectly supported within the vehicle space by the spring and the damper. Dampers are installed in parallel in the expansion and contraction direction of the springs, and the dampers dampen the elastic vibrations of the springs, so that the tilting and shaking of attached rooms such as toilets and washrooms are gentler, and water splashing or overflowing can be avoided. It does not occur due to shaking. Furthermore, since a universal connector is used to connect the damper, there is no need to restrict the effectiveness of the damper due to relative displacement between the accessory chamber and the vehicle, allowing the damper to operate effectively. Furthermore, since the damper is in series with the turnbuckle, it is possible to finely adjust the damping characteristics, which has the effect of optimally preventing shaking. When the sides of the frame are held down by springs and suspended from a vehicle using springs and dampers, the frame side automatically selects a vertical posture, making it easier to keep the floor level and meeting the requirements for an attached room. is valid. Furthermore, since the frame is suspended within a space of the vehicle by springs and dampers,
Maintenance and inspection are also easy.

[Brief explanation of drawings]

FIG. 1 is a side view showing an embodiment of an auxiliary chamber.

FIG. 2 is a sectional view showing an example of how a spring is attached.

FIG. 3 is a perspective view of a locking fitting that suspends the frame.

[Explanation of symbols]

1 Attached room 3 Frame 5 Support shaft 7 Vehicle side 9 Space 11 Damper 13 Locking metal fittings 15 Turnbuckle 17 Hanging axis 19 Spring 21 Protrusion 23 Connecting metal fittings 25 bolts 27 Flexible coupler 29 Through hole 31 Hook

Claims (3)

[Claims] Claim 1: A frame for an accessory room is supported within a space of a vehicle via an elastic spring, a damper is arranged in parallel in any direction of expansion and contraction of the spring, and the elastic vibration of the spring is applied to the damper. An accessory room for a vehicle, characterized in that the damper is damped and a universal connecting device such as a flexible coupler or a universal joint is used to connect the damper. 2. The damper is connected in series with a turnbuckle in a space outside the frame, and one end of the series body is connected to the frame and the other end is connected to the vehicle. Attached compartment of the listed vehicle. 3. The frame body is latched to the vehicle side by a telescopic spring connected at its bottom in the lateral direction, and the frame body is suspended from the vehicle side by a spring and a damper.
Attached compartment of the listed vehicle.