JP4682011B2 - Detachment mechanism of roll screen - Google Patents

Description

The present invention relates to a roll screen attaching / detaching mechanism in which a roll screen used for a sunshade or blindfold used for a window frame or a room partition can be easily attached to and detached from a winding shaft.

  Many roll screens are used for sunshades such as window frames and blindfolds. In these roll screens, various simple attachment methods for fixing the roll screen to the winding shaft have been proposed. However, each has advantages and disadvantages, and there are few things that can be easily attached at home.

  For example, in Japanese Utility Model Publication No. 07-14624 (Patent Document 1), an engagement portion composed of a core portion formed by bending the tip of a roll screen and sandwiching a thermal adhesive tape is inserted into a locking groove of a winding shaft. The support member fitted into the locking groove prevents the tip from dropping off.

  Japanese Patent No. 3466574 (Patent Document 2) discloses a fixed groove in which the end of the roll screen is fitted by an engaging lid that is pivotally fitted in an arc groove formed on the outer periphery of the winding shaft and pivotally supported. It is known that the roll screen is fixed by completely closing.

Figure 1 of Japanese Utility Model Publication No. 07-14624 Japanese Patent No. 3466574, first page

  The above-mentioned Patent Document 1 has a drawback that the front end of the roll screen cannot be reliably locked because the front end of the roll screen is only inserted into the engagement groove and the engagement projection is disposed in the groove. Further, in Patent Document 2, since the engagement lid is pivotally supported so as to rotate, the engagement lid becomes an obstacle when the roll screen is wound around the winding shaft.

The present invention is an improvement of these conventional problems. The roll screen can be securely locked to the take-up shaft, and the roll screen can be wound easily without being disturbed when the roll screen is wound around the take-up shaft. An object of the present invention is to provide a roll screen detachable mechanism that can be removed .

Another object of the present invention is to provide a roll screen detaching mechanism that can easily fix the tip of the roll screen.

Furthermore, the present invention aims to provide a desorption mechanism of the roll screen can be reliably fixed.

In order to solve the above-mentioned problems, the invention according to claim 1 is provided with a locking groove along the longitudinal direction on the outer peripheral surface of the winding shaft, and a locking groove is formed in the vicinity of the locking groove in parallel. , the engagement by the width center of the groove to form a narrower opening than the groove width closer to the engagement groove side, opening the hard of the engagement portion provided at a distal end of the roll screen of the locking groove A latching piece that fits into the longer depth from the part and is capable of winding the roll screen around the outer periphery of the winding shaft, and is latched at one end on the shorter side edge of the opening of the locking groove; A lid piece that closes the locking groove is provided, and a key portion that engages with an engaging portion formed at an edge of the engaging groove without closing the opening of the engaging groove is provided at the other end. by engaging the engaging piece of the cover with the engaging portion of the hook portion after the hook to the side edges, said cover piece of the lid The locking groove to close the opening of the enabling securing the shade to the winding shaft, the other to open the key portion of the lid from the engaging groove I, the winding shaft shade removing the lid from opening, according to this and features make it possible to remove the shade from the winding shaft by escaping the locking portion of the shade from the locking groove of Provides a desorption mechanism .

In order to solve the above-mentioned problem, the invention according to claim 2 is the roll screen detaching mechanism according to claim 1 , wherein the locking portion of the roll screen is fixed to the leading edge of the roll screen by staples. It is characterized by.

According to the roll screen detaching mechanism of the present invention, the locking portion of the roll screen or the locking portion with the hard core piece is inserted into the longer depth of the opening of the locking groove formed on the outer peripheral surface of the winding shaft. Then, the opening of the locking groove can be closed with a lid, and the locking portion of the roll screen can be securely fixed, so that the roll screen can be easily fixed to the winding shaft .

Moreover, according to the roll screen attaching / detaching mechanism of the present invention, the engaging portion can be easily fixed to the tip of the roll screen by a stapler or the like.

It is a schematic longitudinal side view which shows one Embodiment of the detachment | desorption mechanism of the roll screen which concerns on this invention. It is explanatory drawing which inserts the latching | locking part of a roll screen in the opening part of the latching groove of a winding shaft. It is explanatory drawing explaining the state which engages a cover body with a winding shaft. It is a perspective view of the latching | locking part of a roll screen . It is a perspective view of other embodiment of the latching | locking part of a roll screen .

The best mode for carrying out the roll screen detaching mechanism of the present invention will be described with reference to the drawings. Figure 1 is a schematic longitudinal sectional side view showing one embodiment of a desorption mechanism of the roll screen according to the present invention. FIG. 2 is an explanatory diagram for inserting the locking portion of the roll screen into the opening of the locking groove of the winding shaft. FIG. 3 is an explanatory view illustrating a state in which the lid is engaged with the winding shaft. FIG. 4 is a perspective view of a locking portion of the roll screen . FIG. 5 is a perspective view of another embodiment of the locking portion of the roll screen .

  In the present invention, as shown in FIG. 1, a locking portion 3 enclosing a hard core material 2 is formed at the tip of a roll screen 1. The locking part 3 may be sewn to the leading edge of the roll screen 1 with a sewing thread, or can be easily fixed with a staple 9 (see FIG. 5). Also, after temporarily fixing with double-sided tape, it is sewn with sewing thread. On the other hand, a locking groove 5 and an engaging groove 7 are formed in the outer peripheral surface of the winding shaft 4 along the longitudinal direction. The locking groove 5 is formed with an opening 6 narrower than the groove width at a position closer to one side (engagement groove side) than the center of the groove width. The depth is shallow, and the depth on the opposite side is long.

  The cover shaft 8c has a hook piece 8a that is hooked on the engaging groove 7 side edge of the opening 6 of the lock groove 5 formed in the winding shaft 4, and has a cover piece 8c that closes the lock groove 5. A lid body 8 having a key portion 8b that engages with the engaging portion 7a of the engaging groove 7 at the opposite end is formed of synthetic resin.

The roll screen detaching mechanism of the present invention will be described.
As shown in FIG. 2, the rigid locking portion 3 held at the tip of the roll screen 1 is completely inserted from the opening 6 of the locking groove 5 of the winding shaft 4 into the longer depth and fitted. The hook 8a of the lid 8 is inserted into the opening 6 and hooked on the edge of the opening 6, and the lid 8 is rotated counterclockwise in FIG. 2 so that the opening 6 is covered with the lid 8c. Block. As a result, the tip of the roll screen 1 is fixed.

  The key portion 8b provided at the other end of the lid body 8 that rotates to close the locking groove 5 of the winding shaft 4 is engaged with the engaging portion 7a of the engaging groove 7 formed in the winding shaft 4. Thus, the lid body 8 can be firmly fixed to the winding shaft 4.

In the roll screen attaching / detaching mechanism of the present invention, the leading end locking portion 3 of the roll screen 1 is inserted into the locking groove 5 in the longer depth, and the locking groove 5 is closed by the lid piece 8 c of the lid 8. Thus, the escape of the locking portion 3 can be completely prevented. Moreover, the lid body 8 can be firmly fixed at the engaging portions at both ends, and the roll screen 1 can be smoothly wound.

1 Shade 2 the hard core member 3 engaging portion 4 Volume shaft 5 engaging groove 6 opening 7 engages the groove 8 cover 9 stapling

Claims (2)

A locking groove is provided along the longitudinal direction on the outer peripheral surface of the winding shaft, and an engaging groove is formed in parallel in the vicinity of the locking groove, from the width center of the locking groove to the engaging groove side . By forming the opening narrower than the groove width, the rigid locking portion provided at the tip of the roll screen is inserted into the longer depth from the opening of the locking groove and the roll screen is wound up. It can be wound around the outer periphery of the shaft ,
One end is provided with a latching piece that latches on the side edge of the shorter opening of the locking groove and a lid piece that closes the locking groove, and the other end is closed with the opening of the engaging groove. Without engaging, the key portion is engaged after the locking piece of the lid having a key portion that engages with the engaging portion formed at the edge portion on the engaging groove side without being engaged. By engaging with the part, the opening of the locking groove is closed by the lid piece of the lid, and the roll screen can be fixed to the winding shaft ,
On the other hand, the key portion of the lid is released from the engagement groove, the lid is removed from the opening of the winding shaft, and the locking portion of the roll screen is allowed to escape from the locking groove. The roll screen can be detached from the take-up shaft by the roll screen attaching / detaching mechanism . The roll screen attaching / detaching mechanism according to claim 1, wherein an engaging portion of the roll screen is fixed to a leading edge of the roll screen by staples.

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