JPH0442707Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a refrigerating stocker that is improved so that a lid body provided on an outer box so as to be rotatable in the vertical direction is closed at a gentle speed.

[Technical background of the invention and its problems] In conventional refrigerated stockers, a hinge is provided on the box, a lid is rotatably mounted on the hinge, and the lid is rotated in the vertical direction. The opening formed on the top surface of the box body is opened and closed by the opening.

However, in the top configuration, there is a problem that when the lid is closed, the weight of the lid acts in the closing direction, which increases the speed of closing the lid, causing fingers and the like to be caught in the lid.

In order to solve this problem, it is conceivable to provide a buffer spring in the hinge part that biases the lid to rotate upward to suppress and reduce the speed at which the lid closes. It is difficult to adjust the strength of the buffer spring, and if the buffer spring is improperly adjusted, a new problem arises: a gap is created between the lid and the box, allowing cold air to escape and deteriorating performance. A point occurs.

[Purpose of the invention] The present invention was developed in view of the above circumstances.The purpose of the invention is to be able to close the lid at a gentle speed, eliminate the risk of fingers getting caught, and eliminate the problem of cold air leakage. We offer frozen stotzka.

[Summary of the invention] The present invention provides a shock absorber that connects a lid body and a box body and includes a cylinder and a valve body that slides inside the cylinder, and the valve body of this shock absorber is connected to the lid body. The valve body is characterized in that the speed at which the lid closes is slowed down by configuring a part of the valve body as a movable part so that it is in an active state when the lid is closed and is in an inactive state when it is opened.

[Embodiment of the invention] An embodiment of the invention will be described below with reference to the drawings.

First, in FIG. 2, reference numeral 1 denotes a heat insulating box body having an opening 1a on the top surface, and a hinge portion 2 is provided on the rear surface of the box body. 3 is installed as a pivot. Reference numeral 4 denotes a buffer that connects the box body 1 and the lid body 3, and this will be explained below. That is, in FIGS. 1 and 3, reference numeral 5 denotes a cylindrical cylinder with an open upper end and a closed lower end, and a mounting portion 6 provided outside the lower end is attached to the side surface 1b of the box body 1. It is rotatably connected to a pin 7 erected therein, and a lid member 8 having a hole 8a is attached to the upper end opening so as to close the opening. A guide rod 9 is inserted into the hole 8a, and a mounting portion 10 formed at the upper end of the guide rod is rotatably connected to a pin 11 provided upright on the side surface 3a of the lid body 3. The lower end 9a located inside is bent at a substantially right angle, and a valve body 12 that slides inside the cylinder 5 is attached thereto with a screw 13. The valve body 12 includes a fixed part 14 and a movable part 16 connected to the fixed part 14 via a hinge 15. In this case, the upper surface of the movable part 16 is opposite to the fixed part 14.
It is rotatable between an active position where it is approximately flush with the top surface and a non-active position that points downward, and is always rotated upward in the direction of arrow A by a biasing force such as a spring to reach the active position. It is becoming more and more maintained. 17 is a small hole formed in the movable part 16.

Next, the operation of the above configuration will be explained.

As shown in FIG. 1, in the closed position where the lid 3 closes the opening 1a of the box 1, the valve body 1
The second movable part 16 is in the operating position and partitions the cylinder 5 into a lower chamber B and an upper chamber C. When the lid body 3 is rotated in the direction of the arrow D, the guide rod 9 is pulled up via the pin 11 and the mounting portion 10, and the valve body 12 is moved in the direction of the arrow E. This valve body 1
2 increases the volume of the lower chamber B and conversely decreases the volume of the upper chamber C, causing the pressure in the upper chamber C to be high and the pressure in the lower chamber B to be low. As a result, the movable part 16 moves through the hinge 15 As shown in FIG. 4, it rotates in the direction opposite to the direction of arrow A against the biasing force and reaches the inactive position, and lower chamber B and upper chamber C are communicated with each other.
Therefore, the lid body 3 is smoothly rotated at a speed corresponding to the force with which it is pulled up to the open position shown in FIG.
When the lid body 3 is stopped at the open position as shown in FIG. 5, the movement of the valve body 12 is also stopped, and the movable part 16 is rotated back to the operating position by the biasing force. Next, when trying to rotate the lid body 3 from the open position shown in FIG.
1. The guide rod 9 is pushed down via the mounting portion 10, and the valve body 12 moves in the opposite direction of arrow E. Due to this movement of the valve body 12, the volume of the lower chamber B is reduced, and the pressure in the lower chamber B becomes higher than the pressure in the upper chamber C, and this pressure relatively pushes the valve body 12 in the direction of arrow E. This prevents the lid body 3 from moving rapidly. Since the air in the lower chamber B gradually moves into the upper chamber C through the small hole 17, the lid body 3 is rotated at a slow speed in the opposite direction of the arrow D, as shown in FIG. to the closed position shown.

According to the above embodiment, since the buffer 4 acts when the lid 3 is closed, the lid 3 can be closed at a gentle speed, and it is possible to prevent fingers or the like from getting caught in the lid 3. Moreover, unlike the case where a buffer spring is used in the hinge portion 2, there is no problem of cold air leakage.

It should be noted that the present invention is not limited to the embodiments described above and shown in the drawings, and various modifications can be made without departing from the spirit of the invention.

[Effects of the invention] As is clear from the above description, the present invention provides a shock absorber by connecting the lid and the box, and this shock absorber is activated when the lid is closed. The lid body can be closed at a gentle speed, fingers, etc. can be prevented from getting caught, and there is no problem of cold air leakage.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is an enlarged sectional view of the buffer in the closed position, FIG. 2 is an overall perspective view, FIG. 3 is an enlarged exploded perspective view of the buffer, and FIG. The figure is a view corresponding to FIG. 1 at the halfway open position, and FIG. 5 is a view corresponding to FIG. 1 at the open position. In the figure, 1 is a box body, 3 is a lid body, 4 is a shock absorber, 5 is a cylinder, 12 is a valve body, 14 is a fixed part, and 16 is a movable part (part).

Claims (1)

[Scope of utility model registration request] A box body having an opening on the top surface, a lid body provided vertically rotatably on the box body to open and close the opening, and a cylinder provided to connect the lid body and the box body. and a shock absorber having a valve body that slides inside the cylinder, and the valve body of the shock absorber is in an active state when the lid body is closed, and is in a non-active state when the cover body is opened, and a portion of the shock absorber is preferably a movable part. Frozen stotzka characterized in that it consists of: