JPH04220Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Industrial application field) This invention is a system for rotating controlled parts such as high windows for smoke exhaust and ventilation in buildings, shutter-type shutters, and skylights of greenhouses. Regarding a crank handle for rotating a body, in detail, it includes a handle shaft that is engaged with a rotating body to which an operated member is linked, an arm member that rotates the handle shaft around its axis, and this The present invention relates to a crank handle for rotating operation, which is composed of three operating members that rotate an arm member about the axis.

(Prior art) For example, in order to be able to remotely operate a high window from a low position, a rotating body linked to the high window has been provided at a convenient height position relative to the wall for operation. The crank handle is stuck.

(Problems that the invention aims to solve) However, it is easy to hang clothes or put your body against the handle exposed on the wall, and it is easy to interact with blinds etc., and in addition,
There was room for improvement in terms of poor appearance.

Alternatively, the same applies to the case where the handle is configured to be freely removable, and furthermore, in this case, there is a drawback that the handle is inconvenient to store.

The present invention has been devised in view of the above-mentioned circumstances, and aims to eliminate the above-mentioned drawbacks through simple improvements.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides the crank handle for rotary gymnastics described at the beginning.
The handle shaft, the arm member, and the operating member are pivotably connected in a straight rod shape around two mutually parallel axes orthogonal to the rotational axis of the rotating body, and the handle shaft, the arm member, and the operating member are pivotably connected to each other in a straight rod shape. The present invention is characterized in that holes of different diameters are formed around the rotational axis, and that both the handle shaft and the arm member are configured to be slidable only in the axial direction with respect to the different diameter holes.

(Function) According to the above configuration, the three components of the crank handle, including the handle shaft, the arm member, and the operating member, can be switched freely in a straight rod shape around two mutually parallel axes that are orthogonal to the rotational axis of the rotating body. is pivotally connected to
Different-diameter holes are formed in the rotating body, and the handle shaft and arm member are configured to be able to slide freely only in the axial direction relative to the different-diameter hole, so the arm member can be pulled out from the different-diameter hole and the handle shaft Switching between a usage state in which only the arm member is inserted into the hole of different diameter and the three members are bent into a crank shape, and a storage state in which the three members are extended straight into a rod shape and the arm member is inserted into the hole of different diameter. is possible.

(Embodiment) Hereinafter, an embodiment of the present invention will be described based on the drawings. Fig. 1 shows a crank handle A, and as shown in Fig. 4, for example, a high window B for smoke exhaust and ventilation,
It is used to remotely open and close B at a low position.

Specifically, transmission case D installed inside wall C
A pair of small diameter and large diameter gears 1 that engage with each other,
2 is rotatably attached, and the crank handle A is connected to one small diameter gear 1, and a drum 3 is connected to the other large diameter gear 2, and a wire 4 wound around this drum 3 is used for opening and closing a high window. The high windows B and B are connected through a linkage 5 having a well-known structure.

The crank handle A includes a handle shaft 6 that is engaged with the small-diameter gear 1, an arm member 7 that rotates the handle shaft 6 around its rotation axis P, and an arm member 7 that rotates the arm member 7 around its rotation axis P. It consists of three parts, an operating member 8 which is rotated around P, and as shown in FIG.
7 and 8 are pivotably connected in a straight rod shape around first and second shafts 9 and 10 that are parallel to each other and perpendicular to the rotational axis P.

Then, the small diameter gear 1 has its rotation axis P.
For example, a rectangular hole 11 of different diameters is formed around the handle shaft 6 and the arm member 7, and the cross-sectional shapes (outer shapes) of both the handle shaft 6 and the arm member 7 are made to be equal to each other and have a shape corresponding to the hole 11 of different diameters (for example, a square shape). Both 6 and 7 are made slidable only in the axial direction with respect to the different diameter hole 11, and a retaining member 12 is provided at the end of the handle shaft 6, and furthermore, the operating member 8 is A grip 8a with a flange a is rotatably attached, and the grip 8a is made circular so that it can be fitted into the hole 11 of different diameters, and as shown in FIG. As shown in FIG. , as shown in FIG. 3, the arm member 7 is inserted into the different diameter hole 11.
It is configured to be freely switchable between a storage state Y in which the collar a is pressed into engagement with the wall recess 13, and the collar a is tightly fitted into the wall recess 13.

Therefore, if the stored state It also has a good appearance.

When opening and closing the high windows B and B, by pulling out the handle A from the wall C and bending it into a crank shape, the desired shape of the crank handle A can be revealed. Since both the arm member 7 and the handle shaft 6 are slidably engaged with the different diameter hole 11, the handle shaft 6 can be smoothly engaged with the different diameter hole 11. , the arm member 7 is connected to the operating member 8
Although it can be implemented by using a shape similar to that of the handle shaft 6 or The arm member 7 is always engaged with the different diameter hole 11,
When the crank handle A is switched to the use state X, the handle shape before switching to the storage state Y is always displayed.

Now, as shown in FIG. 5, when the crank handle A is switched to the operating state X and the pivot base d of the arm member 7 is brought into contact with the end surface e of the handle shaft 6, the arm member A small gap l is formed between the arm member 7 and the wall surface S, and when the crank handle A is switched to the operating state A latch 14 is pivotally attached to the first shaft 9 of the handle shaft 6 and the arm member 7, and the latch 14 has an end face of the small diameter gear 1 and a hole of different diameter due to the driven action. 11 and contact portions g and h that come into contact with
The latch 14 is brought into contact with the small diameter gear 1 to prevent the handle shaft 6 from sinking, and the small gap 1 is formed to prevent the wall surface S from being damaged. There is.

Further, a portion j that releases the contact of the latch 14 with the small diameter gear 1 when the arm member 7 is switched to a straight rod shape with respect to the handle shaft 6 is connected to the arm member 7. , said latch 1
4 is configured so as not to obstruct switching to the storage state Y.

In addition, when the crank handle A is switched to the stored state Y, the handle shaft 6 is bent around the first shaft 9, and there is a concern that the retaining member 12 at the end of the handle shaft may get caught on the wall of the case D. However, the handle shaft insertion portion of the case wall is formed into a conical surface shape b to prevent the retaining member 12 from getting caught on the case wall. However, in the case of a configuration in which the rotational axis P of the small diameter gear 1 is positioned in the vertical direction, such consideration is not necessary.

Furthermore, an operation recess c is formed which is continuous with the recess 13 so that the collar a can be easily pulled out from the recess 13 when the handle A is switched to the usage state X.

Furthermore, a swing latch 1 is provided to prevent the wall surface S from being damaged.
Instead of the structure of 4, as shown in FIG. A pin hole m facing the groove k is formed in the handle shaft 6, and a pin body 15 whose tip protrudes from the circumferential surface of the handle shaft 6 in a state of preventing extraction is provided in the pin hole m. A spring 16 whose tip protrudes from the circumferential surface of the handle shaft and a spring receiver 17 are attached, so that the tip of the pin body 16 can be freely engaged and detached from the groove k as the handle shaft 6 slides in the axial direction. Then, a small gap l may be formed between the arm member 7 and the wall surface S while the tip of the pin body is engaged with the groove k, or as shown in FIG. A protruding annular rising portion 18 may be provided around the handle shaft 6, and a small gap l may be formed between the arm member 7 and the wall surface S when the arm member 7 is in contact with the rising portion 18. .

In the embodiment, the high window B is remotely controlled by the crank handle A, but instead of the high window, it is possible to change this to a greenhouse skylight, shutter-type shutter, etc., and these can be used as the operated member B. It is called. Further, although the operated member B is linked to the small diameter gear 1, the small diameter gear can be replaced with a chain sprocket, a V pulley, etc., and these are collectively referred to as the rotating body 1.

(Effects of the invention) As explained above, the crank handle for rotary gymnastics according to the invention has the above-mentioned configuration, so that it can be used in a crank-like manner when rotating a rotating body, and when the handle is operated directly. It is possible to switch to a storage state in which it is shaped like a rod and pushed into the rotating body. Therefore, if we reveal the stored state,
This eliminates the need for clothing to be caught on the handle or for the body to rest against the handle, and it also looks good.Furthermore, it eliminates the possibility of colliding with blinds, etc., and is convenient for storage, such as when removing the handle. There is no inconvenience in terms of surface aspects, and furthermore, since the handle shaft and the arm member are slidably engaged with the different diameter holes of the rotating body,
The switching between the two states can be performed smoothly, and overall, through simple improvements, it has been possible to provide a crank handle that not only eliminates the conventional drawbacks but also is useful in terms of use.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a side view of the crank handle in use, FIG. 2 is a side view of the crank handle in the middle of transition to the stored state, FIG. The figure is a perspective view of a high window shown as a target for equipping a crank handle, Figure 5 is a detailed view of the latch part, and Figures 6 and 7 are side views of other embodiments of the structure to prevent scratches on the wall surface. . DESCRIPTION OF SYMBOLS 1...Rotating body, 6...Handle shaft, 7...Arm member, 8...Operation member, 9, 10...Shaft, 11
...Different diameter hole, B...operated member, P...rotation shaft center.

Claims (1)

[Scope of utility model registration request] A handle shaft that is engaged with a rotating body to which an operated member is linked, an arm member that rotates the handle shaft around its axis, and an operation member that rotates this arm member around its axis. A crank handle for rotary gymnastics consisting of a person,
The three members are pivotably connected in a straight rod shape around two mutually parallel axes perpendicular to the rotational axis of the rotary body, and holes of different diameters around the rotational axis are formed in the rotary body, A crank handle for rotary gymnastics, characterized in that both the handle shaft and the arm member are configured to be slidable only in the axial direction with respect to the different diameter hole.