JPH08107724A - Window openers - Google Patents

Abstract

(57) [Abstract] [Purpose] By forming the main constituent members of the window opening / closing device G from aluminum alloy, it is possible to suppress the formation of rust on each constituent member and reduce the overall weight of the opening / closing device G for handling. While improving the workability of mounting in high places by making it excellent in wearability, even though it uses an aluminum alloy that is inferior in wear resistance compared to iron, the sliding contact part of each component wears quickly. This prevents the switchgear G from being used for a long period of time. [Structure] The pinion 1 constituting the window opening / closing device G, the rack 2 and the support 3 are made of an aluminum alloy, and the pinion 1
And a support portion 31 of the support body 3, a bearing 5 made of a synthetic resin for rotatably supporting the pinion 1 in a non-contact state with respect to the support portion 31 is interposed, and the rack 2 and the support body 3 are A spacer 6 made of synthetic resin is interposed between the guide portion 32 and the guide portion 32 to prevent the rack 2 from slidingly contacting the guide portion 32.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window opening / closing device provided on a roof of a greenhouse for cultivating agricultural products.

[0002]

2. Description of the Related Art Generally, a device for opening and closing a window of this type includes a rack connected to a window such as a greenhouse roof, a pinion that engages with the rack to reciprocate, and a support portion that rotatably supports the pinion. A support body having a guide part for guiding the reciprocating movement of the rack, and the pinion is opened or closed by reciprocating the rack by mechanically rotating the pinion manually or by using a motor or the like. I am trying to do it.

[0003] Conventionally, the main components of the pinion, the rack and the supporting member constituting the opening / closing device are made of iron which is excellent in wear resistance and rigidity.

[0004]

[Problems to be Solved by the Invention] However, as described above,
When the main constituent members of the switchgear are made of iron, the wear resistance and rigidity of these constituent members can be increased to make them excellent in strength, but on the other hand, iron is relatively important, so each of the constituent members is heavy. That is, the whole weight of the switchgear becomes very heavy, which makes it inconvenient to handle.
There has been a problem in that the workability of mounting the switchgear inside a greenhouse at a high place such as a roof is poor. Moreover, when the switchgear is used in a greenhouse, the humidity is usually increased by sprinkling water on the crops at predetermined intervals in the greenhouse. Since rust is generated in the constituent members and they are easily corroded, this makes it difficult to use each of these constituent members for a long period of time, and there is also a problem that the management cost of the greenhouse increases.

An object of the present invention is to reduce the overall weight of the opening / closing device while suppressing the formation of rust on each of these components by forming the main components of the window opening / closing device using aluminum alloy. Despite the use of an aluminum alloy, which is superior in wear resistance compared to iron, while being easy to handle and capable of improving mounting workability at high places, It is possible to prevent early wear of the sliding contact part well and to suppress the occurrence of corrosion due to the rust, so that it is possible to use the switchgear for a long time and reduce the management cost of the greenhouse. There is a point to do.

[0006]

To achieve the above object, the present invention provides a pinion 1, a rack 2 which meshes with the pinion 1 and reciprocates by the rotation of the pinion 1.
A support member 31 having a support portion 31 for rotatably supporting the pinion 1 and a guide portion 32 for guiding the reciprocating movement of the rack 2 is provided, and by the reciprocating movement of the rack 2 accompanying the rotation of the pinion 1, In a window opening / closing device configured to open / close a window connected to the rack 2, the pinion 1, the rack 2, and a support body 3 are formed of an aluminum alloy, and the pinion 1 and a support portion 31 of the support body 3 are provided. A bearing 5 made of synthetic resin for rotatably supporting the pinion 1 in a non-contact state with respect to the support 31 is interposed between the racks 2 and the guide 32 of the support 3. A spacer 6 made of synthetic resin is interposed between the above and the rack 2 to prevent the rack 2 from slidingly contacting the guide portion 32 when the rack 2 reciprocates.

[0007]

According to the above construction, since the constituent members of the pinion 1, the rack 2 and the support body 3 which compose the opening / closing device are made of an aluminum alloy which is lightweight and does not easily rust. Not only can corrosion of constituent members be suppressed due to rust, the overall weight of the switchgear can be made lighter, and the handleability of the switchgear can be improved to improve workability in mounting at high places. Although the member is formed of an aluminum alloy, which is inferior in wear resistance to iron, the pinion 1 is provided between the pinion 1 and the support 31 of the support 3 with respect to the support 31. Since a bearing body 5 made of synthetic resin that rotatably supports 1 in a non-contact state is interposed, reliable rotation of the pinion 1 with respect to the support portion 31 can be compensated through the bearing body 5. While you can
It is possible to favorably prevent early wear and deterioration of the sliding contact portion between the support portion 31 and the pinion 1 by the bearing body 5, and the rack 2 and the guide portion 32 of the support body 3 are connected. Since a spacer 6 made of a synthetic resin for preventing sliding contact of the rack 2 with the guide portion 32 when the rack 2 reciprocates is interposed between the rack 2 and the rack 2. While it is possible to compensate for the reliable reciprocating movement of the guide portion 32, it is possible to favorably prevent the sliding contact portion between the guide portion 32 and the rack 2 from being worn and deteriorated at an early stage. Combined with the fact that corrosion of constituent members due to rust can be suppressed, the switchgear can be used for a long period of time and greenhouse management costs can be reduced.

[0008]

EXAMPLE The greenhouse shown in FIG. 4 has a plurality of pairs of left and right beam members A, which extend obliquely downward from the central portion thereof, and a mounting bracket B on the upper side of each beam member A. A ridge member H provided orthogonally to the front-rear direction is provided, and a plurality of outer surface members D are mounted on each beam member A via a support member C, and the ridge member B is adjacent to the ridge member B. An opening E is formed between the outer surface member D and the window F so that the window F can be opened / closed, and the window F is opened / closed via an opening / closing device G. More specifically, the ridge member H in the opening E supports one end of the window F so as to be openable and closable, and the opening / closing device G is supported by a rotary shaft J installed on the lower side of the opening E. Then, the connecting member I is swingably supported on the longitudinal end portion of a rack (which will be described later) extending vertically from the opening / closing device G, and the connecting member I is fixed to the other end side of the window F. There is.

As shown in FIG. 1, the opening / closing device G has a cylindrical body 11 inserted and supported by the rotary shaft J, and the cylindrical body 1
1 has a pinion 1 provided with a large number of teeth 12 in the middle of the longitudinal direction of 1 and a large number of tooth grooves 21 that mesh with the teeth 12 of the pinion 1, and is reciprocally moved by the rotation of the pinion 1 in the vertical direction. And a support body 3 having a support portion 31 for rotatably supporting the pinion 1 and a guide portion 32 for guiding the reciprocating movement of the rack 2. Then, the rotary shaft J is manually or reversely mechanically rotated by using a motor or the like, and accordingly, the pinion 1 is normally or reversely rotated, so that the rack 2 meshed with the tooth portion 12 of the pinion 1 is installed. By reciprocating in the vertical direction, the window F is opened and closed through the rack 2, and air is taken in and out of the greenhouse from the opening E to adjust the internal temperature.

In the opening / closing device G, however, the pinion 1, the rack 2 and the support 3 are entirely made of an aluminum alloy, and the pinion 1 and the support 3 of the support 3 are formed.
1, and a bearing 5 made of synthetic resin that rotatably supports the pinion 1 in a non-contact state with the support portion 31 is interposed, and the guide of the rack 2 and the support 3 is provided. A spacer 6 made of synthetic resin is interposed between the portion 32 and the portion 32 to prevent the rack 2 from slidingly contacting the guide portion 32 when the rack 2 reciprocates.

Specifically, as shown in FIGS. 1 and 2, for example, two plate members 33 and 34 facing each other at a predetermined interval are used as the support member 3, and each of these plate members is used. By integrally connecting one side of the pinions 33 and 34 with the connecting pin 35, a gap in which the tooth portion 12 of the pinion 1 can be inserted is secured between the plate members 33 and 34, and the pinion 1 is also provided. As the support portion 31 of the plate member 33,
Insertion holes 36 and 37 in which the cylindrical body 11 of the pinion 1 can be loosely inserted are provided in the central portion of 34, and the insertion holes 36 and 37 are formed.
Collar portions 38, 39 are integrally formed on the peripheral edge portions of the flange portions, respectively, which project outward in the axial direction and bearing-support the axially opposite side portions of the tooth portion 12 of the cylindrical body 11 of the pinion 1.

Further, as shown in FIGS. 1 and 3, as the guide portion 32 of the rack 2, the plate members 33 and 34 are provided on the opposite side of the connecting pin 35 to the upper and lower portions, respectively, and are directed outward. One projecting piece 40, 4 projecting from above and below
Two sets of 0 and 41, 41 are integrally formed so as to face each other, and reciprocate while guiding both side wall surfaces of the rack 2 on the inner surface sides of the projecting pieces 40, 41 facing each other. Each of the protrusions 40, 40 and 41, 4
Guide bodies 42 and 43 are installed between the two, respectively, and the guide members 42 and 43 integrally join the plate members 33 and 34 together with the connecting pin 35 in a facing manner at a predetermined interval. The rack 2 by the guides 42, 43
The back wall surface on the opposite side of the tooth groove 21 is guided.

The entire plate members 33 and 34, the connecting pin 35, the guides 42 and 43, the pinion 1 and the rack 2 are made of a lightweight aluminum alloy that is resistant to rust. The support portion 31 of the pinion 1 provided on each of the plate members 33 and 34, that is, both side portions of the tooth portion 12 on the outer peripheral surface of the cylindrical body 11 of the pinion 1, and the collar portion of each of the plate members 33 and 34. The bearings 5 and 5 made of, for example, a polyacetal resin having a low sliding resistance are interposed between the bearings 38 and 39, and each bearing 5 is provided with teeth on the outer peripheral surface of the cylindrical body 11. Part 1
A tubular portion 51 that intervenes between both side portions of 2 and the collar portions 38 and 39, and is formed integrally with one end of the tubular portion 51 in the lengthwise direction toward the outside in the radial direction. It has both side surfaces and a large-diameter portion 52 which is inserted into a part of the inner side of each plate member 33, 34.

In the guide portion 32 of the rack 2 provided on the plate members 33 and 34, between the protrusions 40 and 41 of the plate members 33 and 34 for guiding the both side wall surfaces of the rack 2, The spacers 6 and 6 made of, for example, polyacetal resin are mounted, and each of the spacers 6 has a disc-shaped sliding contact portion 61 that is in contact with both side wall surfaces of the rack 2 and the sliding contact portion 61. And a mounting portion 62 which is integrally formed with the mounting portion and is fixed to the mounting holes 40a and 41a formed in the projecting pieces 40 and 41, and the sliding contact portions 61 of the respective spacers 6 are respectively formed on both side wall surfaces of the rack 2. Each of the mounting portions 62 is attached to the mounting holes 40a, 41 so as to face each other.
By being inserted and fixed in a, the both side wall surfaces of the rack 2 are guided in the reciprocating direction via the respective sliding contact portions 61 without directly contacting the both side wall surfaces of the rack 2 with the projecting pieces 40, 41. Let it be done.

Further, when the rack 2 is reciprocated, the back wall surface on the side opposite to the tooth groove 21 is also guided to the guide bodies 42 and 43, and the rack 2 with respect to the guide bodies 42 and 43. The cylindrical spacer 6 that prevents the back wall surface of the above from being directly contacted is rotatably inserted and supported. Incidentally, FIG.
In the figure, 13 is a fixing hole for fixing the pinion 1 to the rotary shaft J via a bolt or the like.

As in the opening / closing device G described above, the entire components thereof, that is, the pinion 1 and the rack 2, the plate members 33 and 34 constituting the support body 3, the connecting pin 35, and the guide bodies 42 and 43 are provided. By forming each of them with a lightweight aluminum alloy that is unlikely to cause rust, it is possible not only to suppress corrosion due to rust of each of these constituent members, but also to reduce the overall weight of the switchgear G and to make it easy to handle. None, in particular, when the switchgear G is mounted at a high place near, for example, the roof of a greenhouse, the mounting workability can be significantly improved.

Moreover, although each of the constituent members is formed of an aluminum alloy which is inferior in wear resistance to iron, the pinion 1 and the support 3 for supporting the pinion 1 are formed. Between the support portion 31, that is, the support portion 3
1. Collar portions 38, 39 of the plate members 33, 34 constituting one
And the tooth portion 1 on the outer peripheral surface of the cylindrical body 11 in the pinion 1.
The bearing bodies 5, 5 made of polyacetal resin or the like having a small sliding resistance are interposed between the two side portions of the bearing body 5, and each of the bearing bodies 5 has a tooth portion 1 in the cylindrical body 11.
2, a tubular portion 51 interposed between both side portions of the tubular portion 38 and the flange portions 38 and 39, and one end portion of the tubular portion 51 in the length direction, which is formed integrally with the tooth portion 12 in a radially outward direction. Large-diameter portion 52 to be intervened in both side surfaces of the plate and inner portions of the plate members 33, 34.
Therefore, even if a large load is applied when the pinion 1 is rotationally driven, the load is dispersed by the cylindrical portion 51 and the large diameter portion 52 provided in each bearing body 5, Since it can be received by the whole of the support body 3 via the collar portions 38 and 39, the reliable rotation of the pinion 1 with respect to the collar portions 38 and 39 can be compensated, and furthermore, the pinion. It is possible to prevent the tubular body 11 of the pinion 1 from directly contacting the collar portions 38 and 39 by the tubular portion 51 of each bearing body 5 when the rotational driving of the pinion 1 is performed.
Further, the tooth portion 12 of the pinion 1 has the plate members 33,
Direct contact around the collars 38, 39 of the bearing 34 can also be prevented by the large diameter portion 52 of the bearing 5,
Therefore, it is possible to favorably prevent the sliding contact portions between the pinion 1 and the plate members 33 and 34 from being worn and deteriorated by the bearing bodies 5 in a favorable manner.

Further, between the rack 2 and the guide portion 32 of the support body 3, that is, between the projecting pieces 40 and 41 of the plate members 33 and 34 constituting the guide portion 32,
Disc-shaped sliding contact portion 6 that is in contact with both side wall surfaces of the rack 2.
Since the spacers 6 made of polyacetal resin or the like having low sliding resistance are provided, the wall surfaces on both sides of the rack 2 are connected to the protrusions 40 through the sliding contact portions 61 of the spacers 6. You can prevent direct contact with 41,
Further, cylindrical spacers 6 made of the same resin are rotatably fitted and supported on the guide bodies 42 and 43, respectively, on which the back wall surface of the rack 2 opposite to the tooth groove 21 is guided. Therefore, it is possible to prevent the back wall surface of the rack 2 from directly contacting the guide bodies 42 and 43 through the spacers 6. Therefore, it is possible to prevent the back wall surface of the rack 2 from directly contacting the guide bodies 42 and 43. The protrusions 40 of the rack 2,
It is possible to compensate for the reliable reciprocating motion with respect to 41 and the guides 42 and 43, but it is also preferable that the protrusions 40 and 41 and the guides 42 and 43 and the rack 2 are worn and deteriorated at an early stage. It can be stopped.

Therefore, as described above, the constituent members of the pinion 1, the rack 2 and the support body 3 which constitute the opening / closing device G are formed of an aluminum alloy, and corrosion of these constituent members due to rust is suppressed. In addition, the pinion 1 and the support portion 31 can be compensated for the reliable rotation of the pinion 1 with respect to the support portion 31 of the support body 3 in spite of the fact that the overall weight is light and the handleability is excellent. It is possible to satisfactorily prevent early wear and deterioration of the sliding contact portion with the rack 2 and to compensate the reliable reciprocating movement of the rack 2 with respect to the guide portion 32 of the support body 3, while also being able to compensate the rack 2 and the guide portion 32. It is possible to favorably prevent early wear and deterioration of the sliding contact portion with, and therefore, it is possible to use the switchgear G for a long period of time in combination with suppressing the occurrence of corrosion due to rust in each of the above-mentioned constituent members. Becomes You can reduce the management costs of the greenhouse.

[0020]

As described above, the present invention provides the pinion 1
And a rack 2 which meshes with the pinion 1 and reciprocates by the rotation of the pinion 1, a support part 31 for rotatably supporting the pinion 1 and a guide part 32 for guiding the reciprocating motion of the rack 2. And a support body (3) for opening and closing a window connected to the rack (2) by reciprocating the rack (2) with the rotation of the pinion (1). The body 3 is made of an aluminum alloy, and is made of a synthetic resin that rotatably supports the pinion 1 in a non-contact state with the support portion 31 between the pinion 1 and the support portion 31 of the support body 3. Of the bearing body 5 and prevents the rack 2 from slidingly contacting the guide portion 32 when the rack 2 reciprocates between the rack 2 and the guide portion 32 of the support body 3. Spacer 6 made of synthetic resin Since it is interposed, each component member of the pinion 1, the rack 2 and the support body 3 which constitutes the opening / closing device is formed of a lightweight and rust-resistant aluminum alloy to suppress corrosion of each component member due to rust. In addition, the whole weight of the opening / closing device is made lighter, and the handleability is improved, so that the mounting workability at a high place can be improved, and the support portion of the pinion 1 and the support body 3 is provided. The bearing body 5 interposed between the pinion 1 and 31 compensates for reliable rotation of the pinion 1 with respect to the support portion 31, and the sliding contact portion between the support portion 31 and the pinion 1 is quickly worn. Deterioration can be favorably prevented by the bearing body 5, and the guide of the rack 2 is provided by the spacer 6 interposed between the rack 2 and the guide portion 32 of the support body 3. Certainty for part 32 Compensate for reciprocating, moreover, is than also be satisfactorily prevented the sliding contact portion between the guide inner 32 and the rack 2 is worn early deterioration,
Therefore, in combination with being able to suppress the occurrence of corrosion due to rust in each of the constituent members, the switchgear can be used for a long period of time, and the management cost of the greenhouse can be reduced.

[Brief description of drawings]

FIG. 1 is a side view showing a window opening / closing device according to the present invention.

FIG. 2 is a sectional view taken along line XX-X in FIG.

FIG. 3 is a sectional view taken along line YY of FIG. 1;

FIG. 4 is a side view schematically showing a mounting portion of a greenhouse opening / closing device.

[Explanation of symbols]

 1 ... Pinion 2 ... Rack 3 ... Support 31 ... Support 32 ... Guide 5 ... Bearing 6 ... Spacer

Claims (1)

[Claims] 1. A pinion (1), a rack (2) meshing with the pinion (1) and reciprocating by rotation of the pinion (1), and a support for rotatably supporting the pinion (1). A support (3) having a guide part (32) for guiding the reciprocating motion of the part (31) and the rack (2), and the reciprocating motion of the rack (2) accompanying the rotation of the pinion (1). A window opening and closing device for opening and closing a window connected to the rack (2), wherein the pinion (1), the rack (2), and the support (3) are made of an aluminum alloy, and the pinion (1 ) And the support portion (31) of the support body (3), the synthetic resin bearing body for rotatably supporting the pinion (1) in a non-contact state with the support portion (31) ( 5) and the rack (2) and the support (3) Inside (3
A spacer (6) made of synthetic resin, which prevents sliding contact of the rack (2) with the guide portion (32) when the rack (2) reciprocates, is interposed between the spacer (6) and (2). An opening and closing device for windows.