JPS60153724A - Attachment apparatus and method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fastening device that can be effectively used to secure and tension flexible material to a frame.

One application of the invention is a double layer system for providing additional layers on top of an existing single layer structure.

U.S. Pat. No. 4,328,649 discloses a two-part device consisting of a first part that is secured to the greenhouse and a second part that is slidably engageable to the first part, and which includes a plastic material attached to the roof or wall of the greenhouse. Discloses what is used when attaching the sheet. The first part has a pointed head that is used to pierce a portion of the sheet, and after piercing the sheet, the second part is clamped until the second part and the first part are tightly clamped together. The seat is held in place by sliding engagement into one piece. Multiple devices are used spaced around the outer edge of the sheet. This device does not serve to stretch the sheet and has the additional disadvantage that it pierces the entire sheet, thereby weakening the sheet.

GB Patent Application No. 2060752A is a device for securing a flexible sheet-shaped auxiliary surface to a greenhouse, the device being arranged to engage a plurality of spacer members and each spacer member being mounted along a fixed support of the greenhouse. and the same number of holding members.

Each spacer member terminates in a protrusion over which, after wrapping a portion of the sheet to be attached, a cap-like retaining member is pushed onto the spacer member to hold the sheet in place. As an alternative to this example, the spacer member may be formed with a recess, while the holding member may be formed with a correspondingly shaped button to fit within the recess. In these instances, the sheet cannot be fully stretched during installation, resulting in undesirable folds and stress on portions of the sheet material.

For example, many other proposals have been made to convert single-layer units such as greenhouses into double-layer units, but most of them have complex configurations that are expensive to manufacture and difficult to assemble. Met.

The present invention provides a very simple apparatus for quickly and easily attaching sheet material, such as a second skin layer, to the framework of a greenhouse or the like. The present invention is useful not only for use on double layer surfaces in greenhouses, but also in any situation where it is desired to install and stretch sheet material on a frame.

According to one embodiment of the present invention, there is provided a fixing device for attaching a sheet-like flexible material to a support, the fixing device comprising a first part that can be placed on the support and a first part that is secured to the first part. the second part is attached to the sheet material and is configured to be movable relative to the first part when the two parts are joined, and the first part is movable relative to the support. so that the force exerted on the two mating parts to move them in one direction relative to the support causes the second part to move generally laterally with respect to said one direction relative to the first part. It is characterized by being forced.

Preferably, the first part moves in one direction relative to the support and resists movement in the other direction.

The second part may be movable obliquely with respect to the one direction with respect to the first part when the two parts are assembled.

According to another embodiment of the present invention, there is provided a method of fixing a sheet material to a support using the above-described fixing device, the fixing method comprising the following steps.

namely, placing a first part of the two fixing devices on a support and arranging the two first parts so as to be movable relative to the support substantially parallel to each other; and placing the two second parts on a sheet of material. engaging the two second parts with the two first parts to support the sheet sag between the two second parts; moving the sheet parallel to and transversely to the direction of movement of the first parts; the first parts are not moved substantially parallel 1c relative to each other so as to be stretched; and the first parts are fixed relative to the support when a sufficient stretching force is applied to the sheet.

In one embodiment, the present invention provides a clip that engages an elongate frame member so as to be slidable along the frame member, the clip comprising: a clip that engages an elongate frame member so as to be slidable along the frame member; It features a clip having at least one protrusion oriented to abut a surface of the member to prevent slippage, and a sheet connecting member that engages and is displaceable along a diagonal guide on the clip.

According to the present invention, the tensioning of the sheet material between two frame members is carried out using rc, preferably four of the above-mentioned fixing devices, as shown below.

The first halves of the two fixation devices are mounted back to back on one of the frame members. They are free to slide away from each other but resist towards each other. The first halves of the other two fixing devices are similarly installed on the second frame member. The second halves of the four fasteners are attached to the four rectangular corners of the sheet material and engaged with the first halves so that the sheet material is supported slack between each device. Next, the first
The halves are pushed apart from each other along the frame members so that the sheet material is stretched parallel to and transverse to the frame members.

Thus, the present invention provides a very simple and effective installation extension system.

The first half of the fastening device according to an embodiment of the invention may be a simple lip made of spring steel, for example, which clip is elastically retained over an elongate shape on the support or in a groove in the support. It has a pair of legs that can fit together.

A first half of a fixing device according to another embodiment of the invention includes a key member lockable within a groove of the support and one or more spade portions for abutting the surface of the support. For example, the key portion of the clip can be freely inserted into the groove of the support when the two parts, clip and support, have a certain relative orientation, and the clip has a It can also be designed so that it locks in the groove when rotated 90 degrees.

Preferably, one of the two parts, when they are engaged,
A guide end is provided for guiding the relative movement of the two parts. The guide end may be straight or inclined with respect to the movement direction. Further, the guide end may be curved.

Preferably, the first part has a guide end onto which the second part of the device is hooked. The guide end is arranged and/or shaped so that a generally lateral force is applied on the second part of the device.

Since the first part of the fixing device is symmetrical with respect to the plane of the solid axis, it can receive a pair of second parts, which has the advantage of providing a full mounting area for two sheets of material. In this case, the guide end can be V-shaped or C-shaped, for example.

In one embodiment of the invention, the second part of the fastening device is designed to have a sheet material glued thereto.

In this case, the second part can be a bar with a hook part that is engaged over the guide end on the first part, and the sheet material can be glued to this bar in use. .

The second part can be symmetrical about the central plane so that it can be used in at least two orientations relative to the support. The second part also has two hooks, one of which is engaged on the guide end of the first part in use. For example, the bar of the second part may have a hook portion at each end and a protrusion or lug therebetween for positioning.

A further embodiment is characterized in that the second part is in the form of a clasp which grips the sheet material.

The clasp works with the support that the sheet material is wrapped around and that support to hold the sheet material in its proper position.
It is effective to configure it with a holding means. The retaining means has a gripping or wedging action to hold the sheet material in position.

Preferably one of these two parts has a hook for engaging the first part of the fixation device of the invention.

The sheet can be held or assisted in holding in the clasp in various possible ways.

According to one aspect thereof, one of the supports includes a channel having an inverted lip along one end.
and the other part is designed to be pushed into or around the channel by a snap fit. A snap fit can be achieved by fitting a portion of this other part behind the inwardly folded lip. By wrapping the sheet around the channels of each component, a firm grip on the sheet is achieved to hold the sheet in use.

Alternatively or likewise, one of the support part and the holding means has an end over which the sheet is folded, and the other part has an end into which said end can be pushed or It is formed with lugs defining recesses that can be press-fitted. In this case, for example, as shown in the previous section, the end portion may be pulled out from the recess twice.
Means are provided to provide resistance to pulling the two parts apart.

A further possibility is to form one part as a plate section with upright sidewalls, with the sidewalls all facing towards each other so that the corners of the sheet material can wrap all the way over the front end of the plate section and over the two sidewalls. It can also be formed as a member with converging side walls that converge and allow the other part to be pushed against the side walls of the first part.

In this case as well, it is desirable to provide means for completely preventing the two parts from separating in the direction of release of the sheet material.

In one embodiment of the clasp, one part is formed as a plate section with converging side walls as described above, and the other part has all converging sides, but these sides are not in use for reasons described below. It will not be pushed against the side wall. However, it is also possible to push in this case,
It is also within the scope of the present invention.

In a preferred embodiment of the invention, both parts of the fixation device consist of parts that are easily and inexpensively cut and bent from sheet metal.

According to another embodiment of the invention, there is provided a sheet attachment extension system comprising a sheet material having a support, a pair of movable parts mounted on the support, and two connecting members, each connecting member can be secured to each movable part and such that when the movable parts are moved substantially parallel to each other relative to the support, the sheet material is pulled both in the direction of movement of both parts and in a direction transverse to that direction of movement. The sheet material attachment is provided with a tensioning system, all of which feature each connecting member working together with a moving part.

In a particular embodiment, the system includes a pair of elongated frame members and two movable parts on each frame member that are free to move away from each other and resist movement of the IC toward and away from the other. , a sheet material having four connecting members, each connecting member being able to engage with each movable member, and when the movable member on each frame member is pushed apart, the sheet material is parallel to the frame member and the frame It is adapted to cooperate with the movable member to be stretched in both directions transverse to the member.

A further aspect of the invention is a clasp for attachment onto an entire object of sheet material, comprising first and second parts configured to be fitted together and grip a portion of the sheet material therebetween by hand. It shows a clasp featuring .

This clasp can also be applied to directly attach sheet material to products other than the other part of the fastening device of the present invention.

Optionally, the first part can be a rod-like bar and work together with a plurality of second parts spaced apart along the length of the bar.

In this case, an elongated rod-like support is provided for wrapping around the sheet material, and cooperates with the elongate rod-like support to provide a rust-proofing action to hold the sheet material in place. At least one member is provided, each cooperating member being advantageously formed with a hook or eyelet for engaging the product to be attached to the sheet metal.

Embodiments of the present invention will be described in detail below with reference to the drawings.

Figures 1 to 3 show the sheet material attached to the frame,
1 shows a mounting device embodying the present invention for tensioning.

The attachment device includes: a second member 14 (shown in FIG. 2) in the form of a clip that can be attached to an elongated frame member 12 of the skeleton as shown; The third sheet 16 is
A second member 14, shown in FIG. 1, provides a connecting member for hooking onto the clip 10 in the manner shown.

Clip 10 has a central body portion 18 with a pair of angled resilient legs 2° extending from either side thereof. Legs 20
has an inwardly curved skirt 22 which allows it to be securely joined behind the edge of the frame member 12. The spade part (hoe-shaped part) 24 is the main body 18
It extends at an angle from the rear end of the. The spade part is slightly tilted toward the rear, and when it is tilted, clip 1
0 is coupled onto the frame member 12, the spade portion 24
is arranged so that it rests exactly on the surface facing the frame member 12. According to this configuration, the clip 10 can freely slide in the front direction of the frame member 12, but even if it tries to move in the rear direction, the lower edge 26 of the spade portion 24 engages with the surface of the frame member 12, so that the clip 10 cannot move in the rear direction. can hardly move. A guide edge 28 is formed at the front end of the main body 18, and in this embodiment, it has a -shaped shape. The purpose of this will be explained later. The entire clip 10 is made by cutting and bending a metal plate.

The second member 14 is in the form of a generally flat rod 30 onto which the sheet 16 is glued.

Along one side of the bar 30 are provided two hooks 3'2 and one lug 34, all bent at an angle from the plane of the bar. The hooks are opposite each other at each end of the rod 30, and the lug is located in the middle thereof. The second member 14 is also made by completely cutting and bending a metal plate.

It can be seen from FIG. 3 that the second member can be coupled to the clip 10 by hooking one of the hooks 32 onto the guide edge 28. In this state, the two members can move fairly freely in the absence of particular external influences, and the relative position of the second member 14 with respect to the clip 10 can be changed by moving the hook 32 along the guide edge 28. can. Each half of the guide edge 28 has a clip 10
Since the second member 14 is inclined in the longitudinal direction of the clip 10, when the hook 32 is moved upward, the second member 14 will move in both the longitudinal direction and the lateral direction of the clip 10.

The lugs 34 of the second member 14 engage the spade portion 24 and act as a stop to prevent further lateral movement of the second member 14 away from the center of the clip 10 when the hook 32 is properly positioned on one side of the body 18. It acts as. guide edge 2
When a force is applied between the second member 14 and the clip 10 to pull the hook 30 in the longitudinal direction of the clip IO with respect to the guide edge 28, the guide edge 28 moves the second member 14 in the lateral direction of the clip 10. It can be seen that the hook 32 acts to move the entire guide edge 28 to the apex of the square shape.

This device is used as follows.

First, two pairs of clips 10 are mounted back-to-back on a frame member 12, with a distance between them somewhat less than the length of the seat 16 to be supported. Attach another set of clips 10' in the same manner.

Next, the four second members 14 are attached near the corners of the sheet 16 by gluing or the like.

Hang the second member 14 loosely on the clip ■0, but loosely (
Two 99711 on each frame member 12 are possible.
The distance between the second member 14 with the sheet 16 stretched and the distance between
This is because the distance between the two members is shorter than the distance between the two members, and because at this point there is considerable lateral movement allowed between each second member and its corresponding clip.

The sheet 16 is once loosened by all the clips lO (
Once supported, the two clips on each frame member 12 are forced apart from each other. Then, the sheet is stretched in the longitudinal direction and the lateral direction by the action of the guide edge 28 of the second member 14.

When the sheet 16 is fully tensioned, the clip 10 maintains the sheet in that position because the spade portion 24 engages the frame member 12 and the clip 10
This is because the sheets 16 are prevented from sagging, which occurs when the sheets 16 approach each other along the lines 2.

Effective sheet stretching can be obtained in this simple and inexpensive manner.

As shown in FIG. 3, the second member 14 is symmetrical about the central longitudinal plane and utilizes only one side of the lip 10.

Therefore, on the other side of the clip 10 there is a separate second member 14.
It can be supported on another sheet using The second member 14 is also symmetrical, but because it is symmetrical with respect to the central transverse plane, the second member can be used in any direction, thus helping to facilitate the operation.

In a double layer greenhouse system using the mounting arrangement shown in FIGS. 1-3, the frame member 12 may be part of the greenhouse framework supporting all of the glass that has already been installed.

Sheet 16 can be made from MELINEX,
Since the edge of the sheet can be directed toward the frame member 12 and wrap around the second member 14 when expanded into position, air between the two sheets can be trapped and serve for insulation purposes.

4 to 7 show further embodiments of the mounting device. This attachment device again comprises a first member 100 in the form of a clip that can be attached to an elongated frame member 102 of the skeleton and a flexible material as best shown in FIGS. 4-6. The sheet T-16 has a second member 104 that holds the entire sheet and a clasp that holds the entire sheet. The clasp 104 is attached to the clip 10 as shown in FIG.
0 to support a sheet of flexible material 16 on frame member 102. - The clip 100 is identical to the clip lO of FIG. 2 and will not be described further.

The clasp 104 consists of two parts: a support member 108 that wraps around the corner of the sheet 106 used;
and a locking member 110 that locks onto the support member 108 to hold the sheet.

The support member 108 is made by completely cutting and bending a metal plate, and as shown in the figure, it consists of a plate portion 112 and a side wall 114 rising straight from the plate portion 112. The side wall 114 narrows toward the front end 116 of the plate portion 112.
It also has a front end 118Th that is gently inclined with respect to the surface of the plate portion 112. A channel 122 is formed at the rear of the support member 108 by a bent portion 120 and a plate portion 112 . The front end of the bent portion 120 is bent to form an inwardly curved lip 124. In order to hang the corner of the sheet 106 made of a flexible material on the support member 108, the support member 108 is first arranged and layered so that the plate portion 112 is flat against the sheet surface and is slightly inside 1 from the corner. The sidewalls 114 will therefore be parallel to and inboard of the adjacent edges of the sheet. Next, the front end 108 of the support member 108 is folded over the corner of the sheet 106 so that it is flat against the surface of the plate portion 112, and
Push it into 22. During this folding operation, the area near the edge of the folded corner of the sheet 106 is bent over the gently inclined front end 118' of the side wall 114! As the edges of sheet 106 are folded over i, the edges of sheet 106 will necessarily be lifted toward sidewalls 114 of support member 108. Therefore, the folded corner is not only against the surface of the plate portion 112, but also the area near the edge of the corner is against the inner surface of the sidewall 114.

The locking members 110 are designed to hold the corners of the sheet 106 in this condition.

For this purpose, the locking member 110 is attached to the plate portion 12.
A locking strip 128 having a length of 6 f and a hinged locking strip 128 is provided. The strip 128 serves as a latching means and a first sheet engaging means, and a lug 130 is formed on the locking member 110 as a second sheet engaging means.

Both the plate portion 126 and the strip 128 are made by completely cutting and bending a metal plate.

The strip 128 is hingedly coupled to the plate portion 126 by fitting the curled rear edge 132 of the plate portion 126 into the groove 134 of the strip 128. When the plate portion 126 is positioned relative to the support member 108 such that the rear edge portion 132 rests on the bottom of the channel 122, as shown in FIG.
28 fits behind lip 124 of support member 108 to lock the two members together. As a result, the rear edge of the plate portion is pressed against the corner of the channel 122,
This forces the portion of sheet 106 that had been pushed into channel 122 into position.

Strip 128 as shown in FIGS.
is formed with a curved tongue 136 which, when the strip 128 is locked, is formed with a curved tongue 136 that
It stands out beyond. The tongue 136 is not critical, but it does provide a means of separating the strip 128'ft from the lip 124, and for some reason may cause the attachment force to be removed.
This is effective when you want to remove the sheet 106 from the camera.

The lug (protrusion) 130 is made by notching the plate part 126 and branching that part, and is attached to the front end 1 of the support member 108.
The 16 full receiver provides a recess 138 for insertion. The position of lug 130 is such that when strip 128 is engaged behind lip 124, the tip of plate portion 112 is pressed between lug 130 and the remainder of plate portion 126, as shown in FIG. It can be determined as follows. Therefore, the portion of the sheet 106 that is folded around the front end 116 is held firmly by the lugs 130 and the plate portion 126.

Another function of the lug 130 is that when a tension force is applied to the sheet 106Vc, the plate portion 112 of the support member 108
'f:0 The purpose is to keep the lock member 110 flat against the plate portion 126 and prevent them from rotating about the rear edge 132 of the lock member 110.

To change the shape of the lug 130 so that when the tip of the plate portion 112 is inserted between the lug and the plate portion 12G, instead of applying a pressing action to the tip of the plate portion 112, a holding force due to constant friction is simply applied. is also possible.

Also, if only the positioning function is required for the lug 130 and the seat 106'! If the lug 130 does not need to be held r, the lug 130 may be positioned to loosely receive the tip of the plate portion 112.

The sides 140 of the plate portion 126 are disposed in substantially the same relationship as the side walls 114 of the support member 108, but the distance therebetween is somewhat reduced compared to the side walls 114. Therefore, when the locking member 110 is coupled to the support member 108, the side portion 140 is close to the bottom of the side wall 114 (see FIG. 6), and the region near the edge of the corner of the folded sheet 106 is attached to the side wall. 114 near the inner surface. This allows the front end 1 of the side wall 114 to
The folded and stretched corners 18'i are maintained and the edges of the sheet 106 are supported in a raised position, which is desirable for reasons discussed below. However, the side portion 140 is still a side wall.
- Member 108. is located slightly inside than 114.
Even when 110 are coupled, they can move relative to each other forward and backward.

The method for coupling the lock member 110i to the support member 108 is as follows.

First, the plate 126 of the locking member 110 is positioned substantially perpendicular to and above the plate portion 112 of the support member 108 .

In this state, the plate part 126 is lowered perpendicularly to the plate part 112, and then the plate part 126 is rotated forward so that the two overlap. Plate section 126 is then moved forward, if necessary, so that the trailing edge of lug 130 is just in front of the front end of plate section 112.

This causes the front end 116 of the plate 112 to move into the recess 138.
It becomes possible to combine with. Finally, the plate part 126'i
Move backwards to complete the join, strip 1
28 is inserted substantially entirely into the channel 122 and the strip 128 is pressed behind the entire lip 124.

Strip 128 securely holds the two members 108 and 11O together and securely holds the sheet of flexible material 106 between them.

As shown in FIG. 7, a hook 142 for connection with the clip 100 is formed at the tip of the plate portion 126.

The mounting device configured as described above is attached to the frame member 102 by the method described above together with the other three mounting devices.
and another parallel frame member used to fully support and stretch the seat 106.

When the apparatus is used in a double layer greenhouse system, frame member 102 may be part of the greenhouse skeleton supporting the glass that is already installed. Sheet 106 is M
EL I NEX and when stretched into position as described above (with the edge of the sheet toward frame member 102 and side wall 114 of support member 108).
Since it can be made completely transparent, it is possible to increase the air velocity between the two sheets and serve for insulation purposes.

8 to 14 show further embodiments of the mounting device. This attachment device includes a first member 200 in the shape of a clip shown in FIGS. 10 to 14;
Second member 204 best shown in FIGS. 9 and 14.
and a first member is lockable to an elongated frame member of the skeleton, and a second member provides a clasp for retaining sheet 206 of flexible material. 1st
The clasp 204 is attached to the clip 2 as shown in Figure 4.
A sheet 206 of flexible material 206 is suspended over the entire frame member 202 for support.

Clip 200 has a central body portion 208. Main body 2
A locking portion 210 extends downward from the front end of 08 at an angle of about 900 to the main body. The lock part 210 is the tenth
A pair of side walls 2L2 extending rearwardly and further outwardly as shown, and a clip 200 located below side wall 212'.
and a key member 214 provided for locking the frame member 202 to the frame member 202.

The key member 214Vc is a set of arms 21 extending laterally.
6 is provided, and the arm 216 is bent rearward at its end, partly for strength purposes and partly for reasons explained below. A spade portion 218 extends at a certain angle from the rear end of the main body portion 208 and is slightly inclined toward the rear. A lower edge 220 of spade portion 218 is formed with a tongue 222 for positioning clip 20 as described below. The body portion 208 has an aperture 224 which defines a V-shaped kite edge 226, which has the same purpose as previously described. The entire clip 200 is made by completely cutting a metal plate and cutting it into a curved shape.

From Fig. 11 to Fig. 13, 1. A method of securing clips 200 to all frame members 202VC is shown.

First, the clip 200 is oriented transversely to the frame member 202. In this state, the key member 214 can be freely inserted into the groove 228 of the frame member 202, as shown in FIG.

After inserting the key member 214' into the groove 228, the clip 200i is rotated 90 degrees as shown in FIG. This action engages the arms 216 with corresponding recesses 230 on either side of the groove 228, securing the arms 216 behind each internal shoulder 232 that defines the upper limit of the recess 230. This locks the clip 200 against pulling it vertically out of the groove 228.

When rotating the key member 214 to fix it in the metal groove 228, the elasticity of the clip 200 is used to rotate the spade part 2.
18 and tongue 222 on frame member 202.
2 until it faces the groove 228. Next, the tongue 22
2 into the groove 228 and the clip is fully secured against further rotation that could cause the key member 214 to dislodge from the groove 228.

This state is shown in FIG.

As shown in FIG. 13, once the clip 200 is secured to the frame member 202, the lower edge 234 of the side wall 212 of the locking portion 210 rests on the very surface of the frame member 202. At least the lower edge 234, and possibly the lower edge 220, is now in the frame 20.
2 of the frame member 2 of the clip 200.
02 is substantially prevented from moving backwards/forwards. However, the arm 216 allows the clip 200 to tilt forward by a certain angle so that the lower edge 234 of the side wall 212 can be moved away from the frame portion 4A' 202 and, if necessary, the lower edge of the spade portion 218. Edge 220
can also be separated from the frame member, thus clip 200'? It is free to move forward along the i-frame member 202. Arm 216 also prevents clip 200 from tilting too much and becoming detached from frame member 202 when clip 200'i is moved forward.

The clasp 204 is the clasp 10 shown in FIGS. 4 to 7.
4 in many respects.

The clasp consists of two parts. That is, the support member 236 wraps around the corner of the sheet 206 to be used, and the lock member 238 locks onto the support member 236 to hold the sheet 206.

As shown in FIGS. 8 and 9, the support member 236 is
Metal plate? It is cut and bent and essentially consists of a support wall 240, a sloped wall 242 connected to the support wall 240 at an acute angle, and an inwardly curved lip 244 at the free end of the sloped wall 242. It consists of a channel member formed from.

When in use, place the support member 236 on the sheet so that the support wall 240 is flat against the sheet surface and slightly inward from the corner, and bend the corner ends of the support member 236 so that the tip 246 of the support wall 240 is wrapped around the support member 236. Wrap the sheet of flexible material 206 around the corner support member 236 by pushing the corner tip all the way into the channel provided by.

The lock member 238 is designed to hold all corners of the seat 206 in this state.

For this purpose, the locking member 238 is attached to the plate portion 24
8, and the plate portion 248 has a latch means and a first
(a locking portion 250 is provided, and a lug (protrusion) 2 serving as a second sheet engaging means)
52 is formed. Plate section 248 and lock section 2
50 is a metal plate cut 1 and bent.

The lock portion 250 is tightly connected to the plate portion 248 at a sharp angle, and as shown in FIG.
244 of support member 236 to lock the two members together. This forces the rear portion of locking member 238 into the corner of the channel provided by support member 236. Fortunately, this forces the portion of the sheet 206 that had been pushed into the channel into place.

Although not shown, locking member 238 may be provided with a curved tongue on locking portion 250 that is positioned to protrude beyond lip 244 in the locked state. Such a tongue is the locking part 250'ft lip 244
This is useful when it is desired to remove the sheet 206 from the attachment device for some reason.

The lug 252 is made by notching the plate portion 248 and branching that portion, and provides a recess 254 into which the entire tip 246 of the support wall 240 of the support member 236 is received. Lug 25
In position 2, as shown in FIG. 9, when the lock portion 250 is engaged behind the lip 244, the tip of the support wall 240 creates a frictional force between the lug 252 and the remaining portion of the plate portion 248. is determined to be held at Therefore, the portion of the sheet 206 that is folded around the tip 246 is held firmly by the lugs 252 of the plate portion 248.

As with the previous embodiment, the lug 252 is connected to the locking member 238.
This assists in properly positioning the support member 236 relative to the support member 236 and prevents the members from rotating relative to each other when a stretching force is applied to the sheet of flexible material 206.

Instead of applying a constant frictional holding force to the support wall 240 when the support wall 240 is inserted between the lug and the plate portion 248, the shape of the lug is such that the lug provides a pressing action as in the previous embodiment. It is also possible to change.

As shown in FIG. 14, a hook 256 for connection with the clip 200 is also formed at the tip of the plate portion 24'8.

The mounting device constructed as described above, along with three other mounting devices, is used to support and stretch sheet 206 on frame member 202 and another parallel frame member in the manner previously described.

As before, when the apparatus is used in a double layer greenhouse system, the frame member 202 may be part of the greenhouse skeleton supporting all of the installed glass. Sheet 206 can be made from MELINEX,
As shown in FIG. 14, when the sheet is stretched to a predetermined position, the edges of the sheet can be pulled toward the frame member 202 and wrapped over the sides of the lock member 238 and the support member 236, so that two sheets can be used. air can be trapped between the sheets to serve insulation purposes.

Various modifications to the attachment device are possible within the scope of the invention.

For example, the legs 22 of the legs 20 of the clip IO- can be bent outward and arranged so that the legs 20 engage grooves in the frame member 12.

The illustrated single spade portion 24, 218 may be replaced by two or more smaller spades or tongues, or rows of teeth or rakes, or the like.

It is also possible for the guide edges 28, 226 to have partially curved contours or to be configured as a single continuous curve.

The hook 32vf-() at one end of the second member 14 can also be attached, as can the lug in the center of the second member 14.

When the lock member 110 and the support member 108 are connected, the clasp 104 is pressed so that the side portion 140 of the lock member is pressed against the side wall 114 of the support member 108.
The clasp 104 can also be deformed by using other means in place of the lugs 130 to prevent relative rotation of the two members due to the force exerted by the stretched sheet 106. is also possible.

In this case, the strip 128 and the means for providing a protruding lip may be dispensed with, since the pressing action between the side 140 and the side wall 114 serves both to retain the sheet 106 and to lock between the two parts.

Another possibility in connection with the clasps 104, 204 is to leave only the lug 130.252 to hold the sheet 106.206i, and to link the members 108° 236 and 110.238 to the metal without holding the sheet 106.206. Another method is to provide a separate latching device for this purpose.

In another variation of the clasp 104, the locking member 1
10 sides 14. (The front end 118'e of the side wall 114 is formed in parallel and at a steep angle with respect to the plate portion 112.)

In use, the side regions of the folded corners of the sheet 106 are stretched tight between the tip 118 and the plate portion 126, thereby providing a desirable lifting action on the edges of the sheet, so that the device can be used, for example, in a greenhouse. Air traps are formed for thermal insulation when used in

A further embodiment of the invention is shown in FIG. In this example, a clasp 300, which is substantially similar to clasp 204, is used, but the seat is not a clip as before;
Attached directly to hooks in wall earth or similar locations.

Similar to clasp 204, clasp 300 is connected to support member 30.
2 and a lock member 304. The support member 302 is
Identical to support member 236 except that it is elongated to accommodate multiple locking members rather than one. The locking member 304 is similar to the locking member 2 except that the hook 256 is not provided and a small hole 306 is provided instead.
It is the same as 38.

In use, use a flexible material or a swell sheet 310.
Place the support wall 308 of the support member 302 flat against the
Make sure it is parallel to and slightly inside the edge of the sheet 310. The sheet is then spread over the top of the support wall 308 and pushed into the channel as before. After that, the plurality of lock members 304 are attached to the support member 3.
02 at regular intervals to ensure that the sheet is held in a predetermined position. Locking member 304 may be coupled to a hook in an appropriate mounting position.

Although it has been mentioned that the parts of the device are made from metal plates, they may also be made from plastic.

All of the parts of the apparatus described below are simple and inexpensive, and the entire apparatus provides a mounting system that allows the sheet material to be attached to the framework very quickly and easily.

[Brief explanation of the drawing]

FIG. 1 is a wing view of the first sheet support member of the fixing device according to the invention, FIG. 2 is a perspective view of the first clip of the fixing device according to the invention, and FIG. 3 shows the members of FIG. FIG. 4 is an exploded view of the second seat support member of the fixing device according to the present invention; FIG. 5 is a cross-sectional view of the second seat support member in the coupled state; FIG. 6 7 is a perspective view showing the second sheet support member engaged with the sheet material, FIG. 7 is a perspective view showing a state in which the members shown in FIGS. 4 to 6 and the clip shown in FIG. 9 is a sectional view of the third seed support member in the coupled state; FIG. 10 is a perspective view of the second clip of the fastening device according to the invention; FIG. , FIGS. 11 to 13 are explanatory diagrams showing how the second clip is attached to the full-length frame member, and FIG. FIG. 15 is a perspective view showing a state in which the clips shown in the figure are used in combination, and FIG. 15 is a schematic diagram showing another application example in which the members of FIGS. 8 and 9 are modified. (Explanation of symbols of main parts) Sheet... 16, 10, 206, 310 Clip... Zoo, 200 Frame member... 12,402, 202 Second member... 14.104.204. 300 Guide edge...28.226 24.218 Leg...20 Key member...214 Groove-' 134,228 0 Hook...32.256 Support member...108.236.302 Lock member・・・ 110.238.304 channel ・・・
122 Recessed part... 138.254 End part... 116 Strip... 128 Plate part... 112.126.248 Side wall ・
... 114 Side part ... 140 Engraving of drawings (L with changes to the content) Procedural amendment February 15, 1985 Manabu Shiga, Commissioner of the Patent Office Indication of case Patent Application No. 252847 No. 252847 of 1982 Invention Name 3 Person making the amendment Relationship to the case: Name of patent applicant Name Mortimer Technology Limited 4 Agent (1) As shown in the attached sheet, we will submit one copy of the full text specification that can be printed. (2) As shown in the attached document, we will submit one official drawing.

Claims (1)

[Scope of Claims] (2) An attachment device for attaching a sheet made of a flexible material to a support, which comprises a first member placed on the support and a second member connectable to the first member, comprising: The second member is attachable to the seat and has a shape that is movable relative to the first member when combined with the first member, and the first member is movable relative to the support. , and thus an applied force to move the first and second members in a direction with respect to the support causes the second member to move generally laterally with respect to the first member. A mounting device characterized in that it is moved. 2. The first member is movable in a certain direction with respect to the support, but resists movement in a direction opposite to the said support. mounting device. 3. The second member is movable obliquely in the direction relative to the first member when the first and second members are coupled. or the mounting device described in paragraph 2. 4. A guide edge that guides all relative movements of the first and second members when the first and second members are coupled,
The attachment device according to any one of claims 1 to 3, characterized in that the attachment device is provided on one of the first and second members. 5. The mounting device according to claim 4, wherein the guide edge is straight and inclined with respect to the direction. 6. The attachment device according to claim 4, wherein the guide edge is curved. 7. The guide edge on which the second member is hung is connected to the first member.
A mounting device according to any one of claims 4 to 6, characterized in that the mounting device is formed on a member. 8. said first member being symmetrical with respect to a central longitudinal plane, whereby said first member can receive a set of said second members, thus providing an attachment member for attaching two sheets; A mounting device according to any one of claims 1 to 7, characterized in that: 9. The first member includes means that can be slidably coupled to a support;
Claims 2 to 8 include means for grasping the surface of the support to prevent slipping when a force in the opposite direction is applied to the first member. The mounting device described in any of the above. 10. Apparatus according to claim 9, characterized in that the first member has one or more spade portions for gripping the entire surface of the support. 11. The first member is a clip having a pair of legs that can be elastically coupled into an elongated structure of the support or a groove of the support. The range! Attachment device according to clause 9 or clause 1O. 12. The attachment device according to claim 9 or 10, wherein the first member is a locking clip having a lockable key member in a groove of the support. 13. Claims 1 to 1, characterized in that the second member is designed to have a sheet fixed thereto.
The mounting device according to any of Item 2. 14. The attachment device according to claim 13, wherein the second member is in the shape of a rod having a hook portion that can be connected to the first member. 15. Claims 1 to 14, all characterized in that said second member is symmetrical with respect to a central lateral plane and can therefore be used in at least two directions with respect to the support. Mounting device as described in section. 16. The second member is in the shape of a clasp for gripping the sheet.
The attachment device according to any one of items 1 to 15. 17. The clasp comprises a support portion around which the sheet is wrapped, and a holding means that cooperates with the support portion to hold the entire sheet in a predetermined position. Mounting device. 18. One of said support parts and retention means comprises a channel having an inwardly bent lip at one end, the other one being designed to be pressed into or near said channel by a snap connection. 18. The mounting device according to claim 17, characterized in that: 19. One of said supporting parts and holding means has an edge portion on which the sheet can be folded, and the other one has an edge portion into which said edge portion can be pushed or tightened.
19. The mounting device according to claim 16, wherein a lug is formed to define all of the recesses to be mounted. Claim 19, further comprising means for resisting separation of the support portion and the holding means in the direction in which the edge portion is pulled out from the recess. Mounting device. 21. The support part comprises a plate part, the plate part having side walls standing upright thereto, the side walls meeting together so that the corners of the sheet meet the edge part of the plate part and the two 18. Attachment device according to claim 17, which can be wrapped around a side wall, and wherein the retaining means have converging sides pressed against the side wall of the support. 2. The clasp according to claims 16 to 21. An apparatus for attaching and stretching a sheet, the apparatus comprising a support, a set of movable members mounted on the support, and a sheet supporting two connecting members, the connecting member each of the connecting members is connectable with each member of the set, and each of the connecting members cooperates with a member of the set when the members of the set move substantially parallel to each other relative to the support. , wherein the sheet is arranged to be stretched in the direction of movement of the members of the set and substantially transversely to the direction of movement. 24. According to claim 23, the members of the second set are free to move in a certain direction with respect to the support, but resist movement in the opposite direction. The device described. 5. In a method of attaching a seat to all supports using seat attaching devices, the method includes the first of two attaching devices.
mounting the first member on the support such that the members can be moved relative to the support substantially parallel to each other; mounting two second members on the seat; and mounting the two second members on the seat. coupling the sheet to the two first members, loosely holding the sheet between the two second members, and moving the first member parallel to each other, thereby controlling the direction of movement of the first member. ``Stretching all the rows of sheets in a direction parallel to the direction of 26. A clasp for attaching a sheet to an object, the clasp comprising a first and a second member, the first member
and the second member is configured such that it can be manually engaged to grasp a portion of the sheet therebetween. 27. The first member is in the shape of a rod, and is arranged along the longitudinal direction of the rod! 27. The clasp of claim 26, wherein the clasp cooperates with a plurality of said second members.