JP3947331B2 - Self-supporting device fall prevention mechanism - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mechanism for relaxing a shock from a floor when the door is opened and closed to ensure opening and closing and preventing the floor from being damaged in a self-supporting apparatus having a door.
[0002]
[Prior art]
For example, conventionally, there is a self-supporting apparatus 1 having a door 2 as shown in FIGS. In this type of self-supporting device 1, if the door 2 is opened around the right fulcrum 3 for the purpose of maintenance or the like and the unit or the like (not shown) is pulled out, the center of gravity of the entire device may be shifted and fall down. Therefore, the roller 5 is provided at the lower part of the door 2 to support the door 2 and prevent it from falling. The roller 5 is attached to the roller bracket 4, and the roller bracket 4 is attached to the door by an oval hole 6 and a screw 7 so as to be adjustable in the vertical direction.
[0003]
[Problems to be solved by the invention]
However, when the door 2 of the self-supporting apparatus 1 having the above configuration is opened and closed, if the floor on which the self-supporting apparatus 1 is installed has an uneven part or an inclination, the roller 3 attached to the door 2 may not contact the floor. Also, it receives vibrations and shocks due to reaction force from the floor. As a result, the center of gravity of the entire device shifted and became unstable and the device fell over. Moreover, the resistance at the time of opening and closing the door 2 is large, making it difficult to open and close, and in an extreme case, the floor was damaged. Further, the screw 7 fixing the roller bracket 4 is loosened and does not function and cannot be opened and closed reliably. There was a problem.
[0004]
The present invention has been made in view of such a conventional problem, and even if the floor has an uneven portion, an inclination, etc., the vibration and impact from the floor at the time of opening and closing the door are alleviated and opening and closing is easy. Therefore, it is an object of the present invention to provide a mechanism for preventing the floor from being damaged and screw loosening.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problems and achieve the above object, the present invention provides a fall prevention mechanism for a self-supporting device, a door attached to the self-supporting device, and a door provided on the door. A support bracket that can be mounted by moving in the vertical direction with respect to the door, a roller bracket that is slidably mounted on the support bracket in a vertical direction, and the roller bracket is urged downward with respect to the support bracket. It has a spring and a roller attached to the roller bracket.
[0006]
Further, in the fall prevention mechanism of the self-supporting apparatus, a door attached to the self-supporting apparatus, a fixed stopper provided on the door, and a tapered portion provided on the opposite side of the fixed stopper while being in contact with the fixed stopper. A movable stopper, a tapered portion that contacts the tapered portion of the movable stopper, and a support bracket that can be mounted by moving in the vertical direction with respect to the door, and are slidably attached to the support bracket in the vertical direction A roller bracket, a spring for urging the roller bracket downward with respect to the support bracket, and a roller attached to the roller bracket, between the fixed stopper and the taper portion of the support bracket, Align the taper of the movable stopper with the taper of the support bracket and insert it. It is a symptom.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The details of the fall prevention mechanism of the self-supporting apparatus of the present invention will be described below with reference to the drawings. In the first and second embodiments and the prior art, the same components are denoted by the same reference numerals.
[0008]
[First Embodiment]
FIG. 1 is a perspective view showing a fall prevention mechanism of the self-supporting apparatus according to the first embodiment, FIG. 2 is a front view of a main part of the fall prevention mechanism of the self-supporting apparatus according to the first embodiment, and FIG. FIG.
[0009]
1 to 3, reference numeral 1 denotes a self-supporting apparatus. 2 is a door, which can be opened and closed around the right fulcrum 3. Reference numeral 5 denotes a roller that supports the door 2. Reference numeral 10 denotes a support bracket attached to the door 2 with a long hole 10 a and a screw 11. An L-shaped bent portion 10c is formed in the upper portion of the support bracket 10, and a hole 10d is provided in this portion.
[0010]
The roller bracket 12 is formed in a substantially U shape at both ends, and the roller 5 is rotatably attached to the lower portion by a shaft 13. Further, an L-shaped bent portion 12 a is formed at the upper portion, and a post 12 b is provided on the bent portion 12 a, and the post 12 b is fitted in the hole 10 d of the support bracket 10. The roller bracket 12 can be moved up and down by being guided by a shoulder collar 14 and a screw 15 through a post 12b provided at the top and a long hole 12c in the center. Reference numeral 16 denotes a spring which is provided around the post 12 a and biases the roller bracket 12 downward with respect to the support bracket 10.
[0011]
When the self-supporting device falling prevention mechanism configured as described above is installed, the door 2 of the self-supporting device 1 is opened / closed around the right fulcrum 3 so that the floor has irregularities or inclinations. The roller 5 that supports the door 2 is fixed by a screw 11 provided in the oblong hole 10a of the support bracket 10 so that the roller 5 is always in contact with the floor by a spring 16.
[0012]
Next, the operation will be described. When the door 2 of the self-supporting device 1 is opened and closed around the right fulcrum 3, the roller 5 that supports the door 2 is always in contact with the floor by the spring 16, even if the floor has irregularities or inclinations. The spring 16 absorbs the vibration and impact caused by the reaction force. As a result, the center of gravity of the entire apparatus is not shifted, and resistance when opening and closing the door 2 is reduced.
[0013]
[Second Embodiment]
FIG. 4 is a perspective view showing the overturn prevention mechanism of the self-supporting apparatus according to the second embodiment, FIG. 5 is a front view of the main part of the overturn prevention mechanism of the self-supporting apparatus according to the second embodiment, and FIG. 5 is a side view of FIG.
[0014]
4 to 6, reference numeral 1 denotes a self-supporting apparatus. 2 is a door, which can be opened and closed around the right fulcrum 3. Reference numeral 5 denotes a roller that supports the door 2. Reference numeral 10 denotes a support bracket attached to the door 2 with a long hole 10 a and a screw 11. A taper portion 10 b is formed in a part of the upper portion of the support bracket 10. An L-shaped bent portion 10c is formed in the other upper portion, and a hole 10d is provided in this portion.
[0015]
The roller bracket 12 is formed in a substantially U shape at both ends, and the roller 5 is rotatably attached to the lower portion by a shaft 13. Further, an L-shaped bent portion 12 a is formed at the upper portion, and a post 12 b is provided on the bent portion 12 a, and the post 12 b is fitted in the hole 10 d of the support bracket 10. The roller bracket 12 can be moved up and down by being guided by a shoulder collar 14 and a screw 15 through a post 12b provided at the top and a long hole 12c in the center. Reference numeral 16 denotes a spring which is provided around the post 12 a and biases the roller bracket 12 downward with respect to the support bracket 10.
[0016]
Reference numeral 17 denotes a movable stopper that is attached to the elongated hole 17a and the screw 18 so as to be movable in the left-right direction, and that translates the tapered portion provided in the lower part in the left-right direction. Reference numeral 19 denotes a fixed stopper provided on the door 2 above the movable stopper.
[0017]
When the self-supporting device falling prevention mechanism configured as described above is installed, the door 2 of the self-supporting device 1 is opened / closed around the right fulcrum 3 so that the floor has irregularities or inclinations. The roller 5 that supports the door 2 is fixed by a screw 11 provided in the oblong hole 10a of the support bracket 10 so that the roller 5 is always in contact with the floor by a spring 16. Next, between the fixed stopper and the taper portion of the support bracket, the upper portion is in contact with the fixed stopper, and the lower portion is moved to the left and right to the taper portion provided on the upper portion of the support bracket 10, and the movable stopper 17 is inserted. Fix with screws 18.
[0018]
Next, the operation will be described. When the door 2 of the self-supporting device 1 is opened and closed around the right fulcrum 3, the roller 5 that supports the door 2 is always in contact with the floor by the spring 16, even if the floor has irregularities or inclinations. The spring 16 absorbs the vibration and impact caused by the reaction force. Furthermore, between the fixed stopper and the taper portion of the support bracket, the upper portion is in contact with the fixed stopper, the lower portion is aligned with the taper portion provided on the upper portion of the support bracket 10, and the movable stopper 17 is inserted and fixed with the screw 18. Thereby, the screw 11 fixing the support bracket 10 is not loosened.
[0019]
【The invention's effect】
As described above, according to the first embodiment, even if there is an uneven part or an inclination on the floor, vibrations and shocks at the time of opening and closing the door are alleviated to make it easier to fall and open and close the door. Prevent damage to the floor. Furthermore, according to the second embodiment, it is possible to prevent the screws from loosening and to open and close them reliably.
[Brief description of the drawings]
FIG. 1 is a perspective view of a fall prevention mechanism of a self-supporting apparatus according to a first embodiment.
FIG. 2 is a front view of a main part of a fall prevention mechanism of the self-supporting apparatus according to the first embodiment.
FIG. 3 is a side view of FIG. 2;
FIG. 4 is a perspective view of a fall prevention mechanism of a self-supporting apparatus according to a second embodiment.
FIG. 5 is a front view of a main part of a fall prevention mechanism of a self-supporting apparatus according to a second embodiment.
6 is a side view of FIG. 5. FIG.
FIG. 7 is a perspective view of a conventional self-standing apparatus diagram.
FIG. 8 is a perspective view of a fall-preventing mechanism of a conventional self-supporting apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Self-supporting apparatus 2 Door 5 Roller 10 Support bracket 10a Long hole 10b Tapered part 10c Bending part 10d Hole 11 Screw 12 Roller bracket 12a L-shaped bending part 12b Post 12c Long hole 13 Shaft 14 Shoulder collar 15 Screw 16 Spring 17 Movable Stopper 17a Slot 18 Screw 19 Fixed stopper

Claims (2)

In the fall prevention mechanism of the self-standing device,
A door attached to the self-supporting device;
A support bracket provided on the door and attachable to the door through a hole ;
A roller bracket attached to the support bracket so as to be slidable in the vertical direction through a long hole ;
A spring for urging the roller bracket downward with respect to the support bracket; and a roller attached to the roller bracket;
The support bracket is attached to / removed from the door with the roller bracket attached thereto, and the fall prevention mechanism of the self-supporting apparatus is characterized. In the fall prevention mechanism of the self-standing device,
A door attached to the self-supporting device;
A fixed stopper provided on the door;
A movable stopper in contact with the fixed stopper and provided with a tapered portion on the opposite side of the fixed stopper;
A support bracket that can be mounted by moving in a vertical direction with respect to the door through a hole, while providing a tapered portion that contacts the tapered portion of the movable stopper,
A roller bracket attached to the support bracket so as to be slidable in the vertical direction through a long hole ;
A spring for urging the roller bracket downward with respect to the support bracket; and a roller attached to the roller bracket;
The support bracket is attachable / detachable from the door with the roller bracket attached, and the taper portion of the movable stopper is tapered between the fixed stopper and the taper portion of the support bracket. A fall-preventing mechanism for a self-supporting device characterized by being inserted according to the section.

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