JPS5939276Y2 - Strut device - Google Patents

Description

[Detailed description of the invention] This invention relates to a support device for an electric fan or the like in which the height can be adjusted by inserting an elevator pipe that supports a heavy object into the support main body so that it can slide up and down. The present invention relates to the structure of a stop operation section that switches between operation and stop.

The embodiment of the present invention shown in FIGS. 1 to 3 will be described in detail below.

Reference numeral 1 denotes a support main body, 2 a camp that is attached to the upper end of the support support main body 1 and forms a predetermined space 3 between it and the upper end surface, and 4 a camp that penetrates the cap 2 and is slidable vertically into the support support main body 1. 5 is the fan head supported on the upper end of the elevator tube 4, 6 is a reel pivoted on the lower end of the elevator tube 4, and 7 is the reel 6.
It is a constant-load spring that is wound around the pole body 1 and locked at one end to the support main body 1, and constantly applies an upward biasing force to the elevator pipe 4 to balance the load of the fan head 5.

Reference numeral 8 denotes a rib 10° 11 which is an annular stop located in the space 3 and is loosely fitted into the elevator pipe 4 through a locking hole 9, and has one end protruding from the upper end surface of the column main body 1 and the inner surface of the cap 2. The edge of the attachment hole 9 is cut into a position where the edge of the attachment hole 9 is engaged with the elevator pipe 4 and a position where the engagement is released by supporting the edge of the attachment hole 9 to the elevator pipe 4 by supporting the edge of the attachment hole 9 at the other end and exposing the side of the legitimate child 12 to the outside, and moving the legitimate child 12 side up and down. Change.

Reference numeral 13 denotes a stop spring that is compressed between the upper end surface of the column main body 1 and the annular stopper 8, and is always attached above the annular stopper 8, that is, in the direction in which the edge of the engagement hole 9 is engaged with the elevator pipe 4. It is strong.

Reference numeral 14 designates a guide spring having a uniform shape and a pair of elastic pieces 15.15, and its ends are fixed to the upper end surface of the support main body 1 so that the elastic pieces 15.15 are positioned on both sides of the annular stopper piece 8.

16. 16 is a locking protrusion formed between the above three positions of the annular stopper 8 and bent opposite to the elastic piece 15. The annular stopper 8 can be attached to the locking protrusion by external operation 16.16 and switches between the above three positions.

Next, its effect will be explained.

Normally, the eldest child 12 side of the annular stop plate 8 is pushed up by the stop spring 13 and is positioned above the locking protrusions 16, 16 as shown by solid lines in FIGS. 2 and 3.

In this state, one end of the annular stopper 8 is supported between the ribs 10 and 11, so the annular stopper 8 is inclined as shown by the solid line in FIG. It is firmly locked by the biasing force of the spring 13, and the elevator pipe 4 is fixed.

When adjusting the height, first push down the heir 12 side of the annular stopper 8, and then release the elastic piece 15. By grinding i5 as shown by the dotted line in FIG. 3, the ring 4Jeih piece 8 is formed into a locking protrusion 16.16 as shown by the dotted line in FIGS. 2 and 3.
Move it below.

Even if the operation of the eldest child 12 is stopped and the hand is released in this state, the annular stopper 8 is held in that state by the locking protrusion 16, 16 and remains in a horizontal state as shown by the dotted line in FIG. At this time, the engagement between the edge of the engagement hole 9 and the elevator pipe 4 is released.

Therefore, in this state, the elevator pipe 4 can freely slide up and down, and its height can be adjusted as desired.

In addition, when the connection is released, the load on the fan head 5 and the biasing force of the constant load spring 7 are balanced, so
The elevator pipe 4 is kept in its position without being raised or lowered.

After adjusting the elevator pipe 4 to the desired height as described above, push up the heir 12 side of the annular stopper 8 to move the annular stopper 8 to the second position.
If you operate as shown by the solid line in the figure, the elevator pipe 4 and the target stopper 8
The edges of the engagement holes 9 are engaged again, and the elevator pipe 4 is fixed at the adjusted height.Next, an embodiment of the present invention will be described.

(1) Forming an inclined portion 17.17 on the elastic piece 15.15 that gradually expands outward from the locking protrusion 16.16,
This inclined portion 17.17 may be configured to constantly urge the annular stopper 8 upward by utilizing the elasticity of the elastic piece 15.15 (as shown in the fourth figure).

According to this, the stop spring 13 can be omitted.

(2) Fix the ends of the elastic pieces 15.15 to the cap 2 and move them upward. (3) Separate the elastic pieces 15.15 and attach both ends to the support body 1.
Alternatively, it may be fixed to the cap 2.

According to the present invention having the above configuration, the annular stopper can be locked in the position where it is disengaged from the elevator pipe, so that it is possible to slide the elevator pipe up and down while operating the annular stopper with both hands. There is no need to perform any operation, and the height of the elevator pipe can be adjusted with one hand.Moreover, the sliding direction of the elevator pipe and the operating direction of the annular stop are in the same direction, and the upper annular stop can be adjusted by straight up and down operation. Since it can be locked and held at the position where it is released from the connection with the elevator pipe, and returned to the position where it is connected to the elevator pipe, there is no confusion during operation, and operability is improved, making it easy to use. Moreover, there is no need to provide a space on the side of the support body in consideration of the lateral movement of the annular stopper, and there is no need to increase the size, which brings about significant practical effects.

[Brief explanation of the drawing]

Figure 1 is a partial cross-sectional view of an electric fan implementing the proposed device;
The figure is a cross-sectional view of the above-mentioned stop operation part, FIG. 3 is a configuration explanatory diagram showing the relationship between the above-mentioned annular stopper and the guide spring, and FIG. 4 is a diagram showing the relationship between the annular stopper and the guide spring in another embodiment of the present invention. It is a configuration explanatory diagram. 1: Support main body, 4: Elevator pipe, 5: Fan head, (heavy object), 7: Constant load spring, 8: Annular stop piece, 13 Nist stop spring (biasing means), 15: Elastic piece, 16: Locking Protrusion.

Claims (1)

[Scope of utility model registration request] An elevator tube that is fitted into the column main body so as to be slidable up and down and supports a heavy object, a spring that is located inside the column main body and always biases the elevator tube upward, and a spring that is located on the column main body side and supports one end. An annular stop whose legitimate child side at the other end extends outward and which can be switched between a position in which it engages with the elevator pipe and a position in which the engagement is released by moving the legitimate child side up and down; a pair of elastic pieces whose ends are fixed to the support body side; a biasing means that constantly urges the annular stop in a direction in which it engages with the elevator pipe; and a locking protrusion which the annular stopper can overcome by external operation of the annular stopper, and the annular stopper is engaged with the elevator pipe by engaging the locking piece with the locking protrusion. A support device characterized in that the bottom of the tank is designed to hold the device in a position where it is released.