JPS5929020Y2 - lift device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an elevating device in which an elevating platform can be moved up and down along a guide rod by rotating two friction wheels that sandwich the guide rod.

Conventionally, many devices that can be lowered along the outer wall of a building have been known as evacuation devices, but there are few that are capable of freely moving up and down along the outer wall.

Generally known lifting devices of this type have a gondola suspended from the roof of a building, and the hanging rope is wound in and out by a motor, but the device is relatively slow. In addition to this, there was also the drawback that the gondola would oscillate.

However, in this invention, a frame is constructed using two upright support rods that are arranged in parallel so that they can be moved apart, and each of the support rods is provided with a friction ring with a roughened circumferential surface and a drive wheel that engages with the friction ring. The friction wheels sandwich a guide rod that is set up along the outer wall of the building, and the drive wheels have their peripheral surfaces in contact with each other so that the building can be moved up and down by the drive of the drive wheels. They provided a device with a simple structure that could be moved up and down along the exterior wall of a building.

In addition, there are no members that cause shaking, such as the above-mentioned hanging ropes,
The drawbacks of the conventional method have also been resolved.

That is, to explain this invention with reference to an embodiment, the upper and lower ends of two support rods 1.1 are connected to bolts 2, plate springs 3, and 3, respectively.
and a nut 4 to form a mounting frame in which the support rods 1.1 can be moved into and out of contact with each other, and a friction ring 5.5 with a roughened circumferential surface is rotatably mounted on the back surface of the support rod 1.1. A drive wheel 6.6 having a roughened circumferential surface like the friction wheel 5 is rotatably provided on the front surface, and a support rod 1 of the shaft 7 of the drive wheel 6 is provided.
The aspect of the auxiliary wheel 8 fixed to the rear protrusion is the friction wheel 5.
The friction wheel 5 and the drive wheel 6 are brought into engagement with each other by bringing them into contact with each other.

This elevating member is used by sandwiching a guide rod 10 with an I-shaped cross section between the friction wheels 5.5, which is installed along the outer wall surface of the building 9, and the side surface of the web 10a of the guide rod 10 is rough. The web portion 10a is held between the friction wheels 5.5, and the drive wheels 6.6 bring the surfaces into contact with each other.

A ratchet gear 11 is fixed to the hub 6a of one of the drive wheels 6.6, and a ratchet pawl is rotatably installed on the support rod 1 with respect to the ratchet gear 11 and is biased by a spring 12. A handle 13 is detachably provided to prevent the drive wheel 6 from rotating backwards, and a handle 14 is fixed to the outer peripheral edge of the drive wheel 6.

In the figure, reference numeral 15 denotes a stopper installed on the support rod 1 so that it can rise and fall freely, and is restricted by a spring 12a so that it can take only the two postures shown by the solid line and chain line in Figure 2. In the condition, this stopper 1
5 is adapted to latch the handle 14.

In addition, 16 in the figure is a lifting platform, and the rectangular tube part 17 at the base is the guide rod 10.
and the rope 18.1 is inserted into the bolt 2.
It is suspended at 8.

In the elevating device of the above embodiment, when one driving wheel 6 is rotated in the direction of arrow 19 by riding on the elevating platform 16 and using the handle 14, the other driving wheel 6 is rotated in the direction of arrow 19a. At the same time, the friction wheels 5.5 engaged via the auxiliary wheels 8.8 rotate in the direction of the arrows 20, 20a, respectively.
As a result, the elevating member and the elevating platform 16 can ascend along the guide rod 10.

When the desired height is reached, the drive wheel 6 is moved by the handle 14.
stop rotating.

Even if you release your hand from the handle 14, the ratchet gear 1
1 and the ratchet pawl 13 work, and there is no risk of it falling due to gravity.

Furthermore, by raising the stopper 15, even if the reversal prevention mechanism is released by mistake, it is possible to prevent the product from falling unexpectedly.6 Next, when descending using this elevating device, the ratchet Release the hook 13 from the ratchet gear 11 (
This ratchet pawl 13 is also restricted to two positions by a spring 12.

), the drive wheel 6 may be gradually rotated via the bundle 14 in the direction of the arrow 21, that is, in the opposite direction to the upward movement.
You can safely descend at any desired speed.

In the embodiment shown in FIG. 5, the driving wheel 6 is driven by a motor instead of manually, and the lifting platform 16 is driven by a motor.
A gear placed on a motor stand 22 installed on one side.
A sprocket wheel 24 fixed to the drive shaft of a motor 23 and a sprocket wheel 25 fixed to the shaft of one of the drive wheels 6 are connected by a chain 26.

In this embodiment, the switch box 27 is used to adjust the drive and rotational direction of the geared motor 23, thereby making it possible to move up and down in the same way as described above.

In this embodiment, the friction wheel 5 and the drive wheel 6 are engaged by meshing gears 28 and 29 fixed to their respective shafts.

That is, this invention has the effect of providing an elevating device that can not only descend along the outer wall of a building but also ascend, despite its simple structure.

Furthermore, since the elevating member and the elevating platform are firmly connected to the guide rod installed along the outer wall of the building, it is possible to provide a safe elevating device without the risk of shaking during elevating or stopping. .

Additionally, since the drive wheel is equipped with a rotating handle, the drive wheel can be rotated manually if necessary, and since a stopper is attached to the support rod, engaging the stopper will prevent the reverse rotation prevention mechanism from being released by mistake. This can prevent the risk of the device falling against your will.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of an embodiment of this invention, Fig. 2 is a side view, Fig. 3 is a plan view, Fig. 4 is a front view of the outer wall of the building, and Fig. 5 is a front view of the embodiment of this invention. A front view of another embodiment of this invention, and FIG. 6 is a side view as well. 1...Support rod, 2...Bolt, 3...
...plate spring, 4...nut, 5...
...Friction wheel, 6... Drive wheel, 7...
・Axle, 8... Training wheel, 9... Building, 1
0... Guide rod, 11... Ratchet gear, 12.12a... Spring, 13...
...Ratchet pawl, 14...Handle, 15
... Stopper 16 ... Lifting platform, 1
7... Square tube part, 18... Rope, 19
．． 19a, 20.20a, 21...arrow, 22
...Motor stand, 23...Geared motor 24.25...Sprocket wheel, 26...Chain 27...Switch box, 28.29...Gear.

Claims (1)

[Scope of utility model registration request] A device in which a guide rod installed upright is sandwiched between friction wheels installed oppositely, and by driving the friction wheels, a lifting platform attached to a friction wheel mounting frame is raised and lowered, parallel to the guide rod. A mounting frame is constructed by inserting bolts into the upper and lower ends of the opposed upright support rods, and a friction ring with a rough circumferential surface provided on each upright support rod is brought into contact with the guide rod, and the bolts are A guide rod is sandwiched between the friction wheels, and drive wheels engaged with the respective friction wheels have their surfaces abutted against each other, and one of the drive wheels is provided with a reverse rotation prevention mechanism and a rotating handle, An elevating device characterized in that the upright support rod is provided with a stopper that can be freely engaged with and detached from the handle.