JPH05132U - Anti-vibration structure locking device - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a locking device for a movable part of a vibration-proof structure including a vertically movable part. A base (10), a first frame (12) arranged above the base, a second frame (14) arranged above the first frame, a base and a first frame. Air springs (16) arranged at a distance between
And a laminated rubber (18) arranged in a space between the first frame and the second frame, which is a locking device for restricting the vertical movement of the frame (14) of the vibration-proof structure. A roller (24) and a grip pipe (26) are attached to a support member (22) which rotates about a horizontal axis. Roller rolls on the base when he pushes down the grip pipe with his foot.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention relates to an anti-vibration structure locking device, for example, a stretcher for carrying a victim. Anti-vibration such as anti-vibration bed that can be installed in an ambulance to put a stretcher on it The present invention relates to a lock device that regulates the vertical movement of a movable part of a structure.

[0002]   The first frame is supported on the base via an air spring, and the second frame is further supported. Support the first frame through laminated rubber and place the stretcher in front of the victim. The 18th day of the development of a bed for the first aid designed to be mounted on the second frame This work was exhibited as a reference item at the General Assembly of the Emergency Medicine Society (from November 8th to 10th, 1990, in Okayama Prefecture. Held in Shiki City). In this emergency bed, the air spring supporting the first frame Therefore, the laminated rubber that absorbs the vertical vibrations and supports the second frame After that, it is possible to absorb the vibration in the left-right direction and transport the injured person at rest.

[0003]

[Problems to be solved by the device]

  The air spring expands and contracts in the vertical direction when a force is applied in the vertical direction. The first frame and the second frame are also vertically displaced. by this, Absorbs vertical vibrations applied during driving. However, the speed of carrying an ambulance Force the patient downwards, for example when they need a heart massage. As a result of the air spring working, the sick person and the stretcher move downward. I am not able to give a proper massage.

[0004]   The object of the present invention is a vertically movable part, such as the vibration-isolating bed for the first aid person. An object of the present invention is to provide a locking device for the movable part in a vibration-proof structure including the above.

[0005]

[Means, actions and effects for solving the problems]

  The present invention includes a base, a first frame disposed above the base, and the first frame. A second frame disposed above the frame of the base, the base and the first frame. Between the first frame and the second frame An air spring having an air chamber that is vertically extensible and arranged on one side of the Between the first frame and the second frame and the distance between the first frame and the second frame. The vibration-damping structure including a laminated rubber arranged on the other side of the space between the frame and the frame. It is a locking device that regulates the vertical movement of the frame. The locking means is the first Rotatably supported by the first frame or the second frame and is in an unlocked position. Rotate to and from the locked position. When the locking means is in the locked position, the locking means is You can contact the source.

[0006]   When you rotate the locking mechanism to the locked position and make sufficient contact with the base, The vertical movement is restricted by the locking means. In this state, on the stretcher Necessary treatment such as heart massage can be given to the sick person. After the procedure, lock Rotate the means to the unlocked position and allow the air spring to work.

[0007]   According to the present invention, while providing sufficient anti-vibration function, temporary movement of the frame It can be locked.

[0008]   To regulate the vertical movement of the frame, use compressed air from the air chamber of the air spring. You may remove it. However, with this, the compressed air is subsequently resupplied to the air chamber. Although there is a large time loss, including the charging time, according to the present invention, such a loss is Does not happen.

[0009]   The locking means is arranged between the upper unlocked position and the lower locked position, the horizontal axis A support member that rotates around the roller and a roller that is rotatably supported by the support member. And a roller that rolls the base when the support member is in the locked position, A grip pipe mounted on the support member and fixing the support member in an unlocked position. It is preferable that it comprises a means.

[0010]   The support member moves about the horizontal axis between the upper unlocked position and the lower locked position. Since it rotates, you can operate the locking means by pressing the grip pipe with your foot. Can be locked. It does a heart massage, for example The person can operate the locking means, which enables timely and quick operation. Also When the lock position is reached, the roller rolls on the base, making it easy to lock Becomes

[0011]

【Example】

  The lock device according to the present invention has a structure in which the movable part is temporarily moved in the vibration isolation structure shown in FIG. It regulates such movements.

[0012]   The anti-vibration structure shown in FIG. 1 includes a base 10 and a first base arranged above the base 10. A frame 12 and a second frame 14 arranged above the first frame 12 , An air spring 16 arranged at a distance between the base 10 and the first frame 12, Laminated rubber 1 arranged at a distance between the first frame 12 and the second frame 14. 8 and. The air spring 16 absorbs the vibration in the vertical direction A, and the laminated rubber 18 Absorbs vibrations in the front-back direction B and the left-right direction.

[0013]   The two frames 12, 14 are supported by an air spring 16 so as to be vertically displaceable. It is held, but its movement is restricted by the locking means 20. Locking means 2 0 is rotatably supported by the first frame 12 or the second frame 14, and When rotating between the lock position and the lock position to reach the lock position, the base 10 Can be contacted.

[0014]   In the embodiment shown in FIGS. 1 and 2, the locking means 20 is a Rotate around the horizontal axis between the locked position and the lower locked position shown in solid lines The support member 22, the roller 24 rotatably supported by the support member 22, and the grip pie And a means 28 for fixing the support member 22 in the unlocked position.

[0015]   The support member 22 includes an upper portion 23a having an L-shaped cross section and an upper portion 23a. two bracket parts 23b welded to a and the upper part 23a and the two bracket parts 23a. It consists of a plate-shaped reinforcing portion 23c extending over the racket portion 23b, and two rods 3 0 is attached to the upper portion 23a. These rods 30 have a second flare. Rotatably supported by pins 34 on two columns 32 attached to the frame 14. There is.

[0016]   Two rollers 24 are rotatably supported on each bracket portion 23b of the support member 22. I have it. These rollers 24 serve as the base when the support member 22 is in the locked position. Roll the base 10. The grip pipe 26 is fixed to the reinforcing portion 23c of the support member 22. Has been. The fixing means 28 is formed by bending a leaf spring symmetrically in a concavo-convex shape. When the rod 30 fits in the recess, the rod 30 is held in a fixed state.

[0017]   To bring the locking means 20 into the locked position, the grip pipe 26 is pushed down by the foot. Then, the support member 22 rotates around the pin 34, and the roller 24 moves. Rolling over and hitting the stopper 36, the frame 14 is locked. Lock To bring the locking means 20 to the unlocked position, hold the grip pipe 26 by hand and Raise to.

[0018]   The anti-vibration structure shown in FIG. 1 is used as the anti-vibration structure of the anti-vibration bed shown in FIGS. 3 and 4. Can be used. In this anti-vibration bed, the empty spaces placed at the four corners of the front and rear of the base 10 and the left and right The frame 12 is supported by the air springs 16 and further arranged at four positions on the frame 12. The frame 14 is supported by the placed laminated rubber 18. Base 10 and flare A rocking mechanism composed of a link 40 and a link 42 is arranged between the frame 12 and the frame 12. The frame 12 is vertically displaceable, and a shock is generated between the link 40 and the frame 14. The absorber 44 is arranged to damp the vibration. Compressed air to the air spring 16 The supply is performed from the tank 50 mounted on the vehicle through the sub tank 52.

[0019]   As shown in FIGS. 5 and 6, the anti-vibration bed has a cover on the upper side of the frame 14. -46 is arranged, this cover 46 is attached and fixed to the pillar 32 or the frame 14, used. The stretcher is placed on the cover 46 and is appropriately fixed. Anti-vibration bed The air spring 16 is arranged at the front and the rear, but regulates the movement of the frame 14. The locking means 20 may be provided only on the portion that becomes the head of the victim. Locking means 2 0 is arranged in the cutout portion of the cover 46 and is exposed to the outside.

[0020]   Instead of the embodiment, the air spring 16 is replaced by a first frame 12 and a second frame 1. 4 is arranged between the base 10 and the first frame 12. It may be arranged between them. Further, in the above embodiment, the frame 14 is The means 20 is attached, but instead of this, the locking means is attached to the frame 12. May be. That is, in the locking means 20, the air spring 16 has the base 10 and the first flap. When it is in the space between the frame 12 and the frame 14 or the frame 12, , The air spring 16 is located between the first frame 12 and the second frame 14. At this time, it is mounted on the frame 14.

[Brief description of drawings]

FIG. 1 is a side view showing a locking device for an anti-vibration structure according to the present invention, in which a locking means is in a locked state.

FIG. 2 is a front view of the locking means shown in FIG.

3 is a side view of an anti-vibration bed including the anti-vibration structure shown in FIG. 1. FIG.

FIG. 4 is a plan view of the anti-vibration bed of FIG.

5 is a perspective view showing a cover attached to the anti-vibration bed of FIG. 3, in which the locking means is in a locked state.

FIG. 6 is a perspective view similar to FIG. 5, with the locking means in an unlocked state.

[Explanation of symbols]

10 base 12, 14 frames 16 air spring 18 laminated rubber 20 Locking means

Claims (2)

[Scope of utility model registration request] 1. A base, a first frame arranged above the base, a second frame arranged above the first frame, and between the base and the first frame. Between the base and the first frame, the air spring having an air chamber that is expandable and contractible in the up-and-down direction, the air spring being disposed at one of the space between the first frame and the second frame. A locking device for restricting the vertical movement of the frame of the vibration-proof structure including a laminated rubber arranged in the other of the space between the first frame and the second frame. A lock means rotatably supported by the first frame or the second frame, the lock means rotating between an unlocked position and a locked position, and when the locked position is reached,
An anti-vibration structure locking device capable of contacting the base. 2. The locking means comprises a support member that rotates around a horizontal axis between an upper unlocked position and a lower locked position, and a roller rotatably supported by the support member. The roller according to claim 1, comprising a roller that rolls the base when the support member is in the locked position, a grip pipe attached to the support member, and a means for fixing the support member in the unlocked position. Anti-vibration structure locking device.