JP2017150787A - Circulator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a circulator in which work efficiency of work for fixing a grill to a casing is improved.SOLUTION: A circulator comprises: a casing having a main fixing screw hole into which a main fixing screw is screwed, and a temporary fixing screw hole into which a temporary fixing screw is screwed at a face on an indoor side; a blower accommodated in the casing; a fixing metal fitting for fixing the casing to an attachment object; and a grill fixed to the face at the indoor side of the casing. The grill has: a main fixing hole being a long hole having a width smaller than a diameter of a head part of the main fixing screw; a temporary fixing groove which has a width larger than a diameter of a shaft part of the temporary fixing screw, and a width smaller than a diameter of a head part of the temporary fixing screw; and a temporary fixing hole which is connected to the temporary fixing groove, and has a size larger than the diameter of the head part of the temporary fixing screw, at a portion to be attached to the casing.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a circulator that sucks and blows out air.

  In the conventional circulator, as shown in Patent Document 1, the casing in which the blower is housed is fixed to the ceiling, and then the grill is attached to the lower surface of the casing. Also, when attaching the grille, it is attached to the upper surface of the grill so that the tip of the alignment screw is on the upper side in the vertical direction, and the alignment screw is inserted into the alignment hole provided on the lower surface of the casing. After aligning with the casing, it was fixed with this fixing screw.

JP 2003-227639 A

  However, in the circulator of Patent Document 1, when the grill is attached to the casing, one person needs to support the grill and the other person needs to fasten and fix the screw, and one person cannot attach the grill to the casing. In addition, the work of inserting the positioning holes of the casing and the positioning screws attached to the grill is a blind work, and the mounting work is performed at a high place, so the work of fixing the grill to the casing is easy. I can't do it.

  The present invention has been made in view of the above, and an object of the present invention is to provide a circulator with improved workability for fixing a grill to a casing.

  In order to solve the above-described problems and achieve the object, the circulator according to the present invention includes a main fixing screw hole into which the main fixing screw is screwed and a temporary fixing screw hole into which the temporary fixing screw is screwed into the indoor side. A casing having a surface, a blower accommodated in the casing, a fixing metal fitting that fixes the casing to an attachment target, and a grill that is fixed to the indoor-side surface of the casing. The grille is a long hole with a width smaller than the diameter of the head of the main fixing screw, the diameter of the head of the main fixing screw, the width of the main fixing hole being larger than the diameter of the shaft of the temporary fixing screw. A temporary fixing groove having a smaller width than the temporary fixing groove and a temporary fixing hole connected to the temporary fixing groove and larger than the diameter of the head of the temporary fixing screw are provided in the portion attached to the casing.

  According to the present invention, there is an effect that it is possible to provide a circulator with improved workability for fixing the grill to the casing.

The perspective view of the circulator which concerns on embodiment The enlarged view which expands and shows the fixing position of the grill and casing before temporary fixing of the circulator which concerns on embodiment The enlarged view which expands and shows the fixing position of the grill and the casing after this fixing of the circulator which concerns on embodiment The front view which looked at the casing of the circulator which concerns on embodiment from the indoor side The perspective view after attaching a grill to the circulator concerning an embodiment The front view which looked at the grill of the circulator concerning an embodiment from the room inner side Sectional view of the circulator viewed along line VII-VII shown in FIG. Sectional view of the circulator viewed along line VIII-VIII shown in FIG. The enlarged view which expands and shows further the fixing position of the grill and casing shown in FIG. The enlarged view which expands and further shows the fixing position of the grille and casing shown in FIG.

  Below, the circulator which concerns on embodiment of this invention is demonstrated in detail based on drawing. In addition, this invention is not limited by this embodiment.

Embodiment.
FIG. 1 is a perspective view of a circulator according to an embodiment. FIG. 2 is an enlarged view showing, in an enlarged manner, a fixing position between the grill and the casing before temporary fixing of the circulator according to the embodiment. FIG. 3 is an enlarged view showing, in an enlarged manner, a fixing position between the grill and the casing after the main fixing of the circulator according to the embodiment. FIG. 4 is a front view of the casing of the circulator according to the embodiment of the present invention as viewed from the indoor side.

  FIG. 5 is a perspective view after the grill is attached to the circulator according to the embodiment of the present invention. FIG. 6 is a front view of the circulator grill according to the embodiment of the present invention as seen from the indoor side. FIG. 7 is a cross-sectional view of the circulator taken along line VII-VII shown in FIG. FIG. 8 is a cross-sectional view of the circulator viewed along line VIII-VIII shown in FIG.

  As shown in FIG. 1, the circulator 100 according to the present embodiment includes a rectangular parallelepiped casing 1, a fixture 2 that fixes the casing 1 to an attachment target, and a grill that is fixed to a surface 1RP of the indoor side RS of the casing 1. 3 and an impeller 4 which is a blower for circulating indoor air. In the present embodiment, the casing 1 is attached to the ceiling. That is, the circulator 100 is a ceiling embedded type. In the present embodiment, the impeller 4 is a cross flow fan. The rotation center axis Zr of the impeller 4 extends along the longitudinal direction of the casing 1. Hereinafter, the surface 1RP of the indoor side RS of the casing 1 is appropriately referred to as a mounting surface 1RP.

  As shown in FIG. 1, the casing 1 has a rectangular parallelepiped shape. The casing 1 accommodates the impeller 4. In the present embodiment, the casing 1 is manufactured by sheet metal processing, but the casing 1 is not limited to this. The rectangular parallelepiped casing 1 has an opening 1H on one surface. The attachment surface 1RP is a portion where a part of the casing 1 protrudes toward the opening 1H. As shown in FIG. 4, the casing 1 has four main fixing screw holes 10 and four temporary fixing screw holes 12 on the mounting surface 1 RP.

  The fixture 2 is a fixture for fixing the casing 1 to the suspension bolt 15. The fixing bracket 2 is attached to a pair of side surfaces 1Sf and 1Ss of the casing 1 as shown in FIGS. The pair of side surfaces 1Sf and 1Ss are a pair of surfaces existing in the direction in which the rotation center axis Zr of the impeller 4 extends, that is, on the longitudinal direction side of the casing 1. Bolts 13 and nuts 14 are fastened to the fixture 2. The fixture 2 is fixed by fastening a nut 16 to a suspension bolt 15 fixed to the ceiling.

  As shown in FIG. 2, the grill 3 includes a temporary fixing hole 6, a temporary fixing groove 7, and a main fixing hole 8, and includes a guide plate 17 as illustrated in FIG. 7. The grill 3 is attached to the attachment surface 1RP of the casing 1. The grill 3 is larger than the mounting surface 1RP of the casing 1 and the opening of the ceiling. For this reason, when the circulator 100 is attached to the ceiling, the grill 3 covers the gap between the casing 1 and the opening of the ceiling.

  As shown in FIG. 2, the temporary fixing holes 6, the temporary fixing grooves 7, and the main fixing holes 8 are formed in four portions 3 </ b> F attached to the casing 1 of the grill 3. Hereinafter, the portion 3F attached to the casing 1 of the grill 3 is appropriately referred to as an attachment portion 3F. As shown in FIGS. 7 and 8, the attachment portion 3 </ b> F is a portion where the grill 3 is in contact with the casing 1. The temporary fixing hole 6 and the temporary fixing groove 7 are connected. More specifically, the temporary fixing groove 7 extends from a part of the circular temporary fixing hole 6 in the longitudinal direction LG of the grill 3, that is, in a direction parallel to the rotation center axis Zr of the impeller 4 provided in the casing 1. Extending along. Thus, the temporary fixing hole 6 and the temporary fixing groove 7 are one opening formed continuously in the grill 3.

  The temporary fixing hole 6 is a hole larger than the diameter 5D of the head 5H of the temporary fixing screw 5. More specifically, the diameter 6D of the circular portion of the temporary fixing hole 6 is larger than the diameter 5D of the head 5H of the temporary fixing screw 5. The temporary fixing groove 7 is a groove having a width 7W larger than the diameter 5d of the shaft portion 5S of the temporary fixing screw 5 and a width 7W smaller than the diameter 5D of the head 5H of the temporary fixing screw 5. The width 7W is a dimension of the temporary fixing groove 7 in a direction orthogonal to the direction in which the temporary fixing groove 7 extends.

  The main fixing hole 8 is a long hole. More specifically, the main fixing hole 8 has a racetrack shape in which two semicircles 8CH and 8CH are connected by two straight lines 8L and 8L parallel to each other. The main fixing hole 8 extends along the longitudinal direction LG of the grill 3, that is, along a direction parallel to the rotation center axis Zr of the impeller 4 provided in the casing 1. The main fixing hole 8 is formed on the side opposite to the temporary fixing groove 7 with respect to the temporary fixing hole 6.

  The width 8W of the main fixing hole 8 is larger than the diameter 11d of the shaft portion 11S of the main fixing screw 11 and smaller than the diameter 11D of the head portion 11H of the main fixing screw 11. The width 8W is a dimension of the main fixing hole 8 in a direction orthogonal to the direction in which the main fixing hole 8 extends. The width 8W is also the shortest distance between the two straight lines 8L and 8L.

  The guide plate 17 shown in FIGS. 7 and 8 is a plate that guides the flow of air passing through the grill 3. The guide plate 17 has a viewing window 9 as shown in FIG. As shown in FIGS. 7 and 8, the guide plate 17 is disposed on the indoor side RS of the grill 3.

  As shown in FIG. 2, the viewing window 9 covers the temporary fixing hole 6 and the main fixing hole 8 when the temporary fixing hole 6 and the main fixing hole 8 are viewed from the indoor side RS. It is an opening formed in the part. As shown in FIGS. 3 and 8, the viewing window 9 is disengaged from the position of the temporary fixing screw 5 when the grill 3 is moved to a position where it is permanently fixed to the casing 1. For this reason, when the grill 3 is moved to the position fixed to the casing 1, the temporary fixing screw 5 is hidden by the guide plate 17. That is, the viewing window 9 opens at a position where the temporary fixing screw 5 cannot be seen when the viewing window 9 is viewed from the indoor side RS after the grill 3 is permanently fixed to the casing 1.

  The impeller 4 is accommodated in the casing 1. The impeller 4 is connected to an electric motor (not shown). The electric motor rotates the impeller 4. Thereby, the impeller 4 sucks indoor air through the grill 3 and blows out the sucked air into the room.

  FIG. 9 is an enlarged view showing the fixing position between the grill and the casing shown in FIG. 2 further enlarged. FIG. 10 is an enlarged view showing the fixing position between the grill and the casing shown in FIG. 3 further enlarged. A method for attaching the grill 3 and the casing 1 will be described.

  First, the temporary fixing screw 5 is screwed into the temporary fixing screw hole 12 shown in FIG. The temporary fixing screw 5 is screwed in with a screw thread so that a gap is left between the head 5H of the temporary fixing screw 5 and the casing 1. In the present embodiment, as shown in FIG. 4, the temporary fixing screw holes 12 are formed in four places, and therefore, the temporary fixing screws 5 are screwed into the four temporary fixing screw holes 12.

  Next, as shown in FIG. 9, the head 5 </ b> H of the temporary fixing screw 5 screwed into the casing 1 is inserted into the temporary fixing hole 6 of the grill 3. In this embodiment, since the four temporary fixing holes 6 are formed, the heads 5H of the temporary fixing screws 5 are inserted into the four temporary fixing holes 6. Since the guide plate 17 has the observation window 9, the operator can insert the temporary fixing screw 5 into the temporary fixing hole 6 while visually checking the position of the temporary fixing hole 6.

  Next, the operator moves the temporary fixing screw 5 from the temporary fixing hole 6 to the temporary fixing groove 7 with the head 5H of the temporary fixing screw 5 being inserted into the temporary fixing hole 6. For this reason, the operator slides the grill 3 in the direction from the temporary fixing groove 7 toward the temporary fixing hole 6. As described above, the width 7W of the temporary fixing groove 7 is smaller than the diameter 5D of the head 5H of the temporary fixing screw 5 and smaller than the diameter 5d of the shaft portion 5S of the temporary fixing screw 5. Therefore, the head 5 </ b> H of the temporary fixing screw 5 can support the grill 3 at the portion of the temporary fixing groove 7, so that the grill 3 is temporarily fixed to the casing 1 by the temporary fixing screw 5.

  Next, as shown in FIG. 10, the positions of the main fixing hole 8 formed in the grill 3 and the main fixing screw hole 10 formed in the casing 1 coincide with each other when viewed from the indoor side RS. In addition, the operator slides the grill 3. As described above, the main fixing hole 8 is formed on the opposite side of the temporary fixing groove 7 with respect to the temporary fixing hole 6, so that the temporary fixing screw 5 moves to the temporary fixing groove 7. Even if the head 5 </ b> H of the temporary fixing screw 5 is hidden by the guide plate 17, the main fixing hole 8 is exposed from the viewing window 9. Finally, as shown in FIG. 10, the operator screws the main fixing screw 11 into the main fixing screw hole 10 through the main fixing hole 8. In the present embodiment, since the main fixing screw holes 10 are formed at four places, the main fixing screws 11 are screwed into the four main fixing screw holes 10.

  As described above, the circulator 100 includes the temporary fixing groove 7 having a width 7W larger than the diameter 5d of the shaft portion 5S of the temporary fixing screw 5 and a width 7W smaller than the diameter 5D of the head 5H of the temporary fixing screw 5. The mounting portion 3F of the grill 3 has a temporary fixing hole 6 formed in connection with the temporary fixing groove 7 and larger than the diameter 5D of the head 5H of the temporary fixing screw 5. With such a structure, the grill 3 is slid after the head 5H of the temporary fixing screw 5 is inserted into the temporary fixing hole 6, so that the temporary fixing screw 5 is grilled at the portion of the temporary fixing groove 7. 3 can be supported. For this reason, the operator can fix the grill 3 in a state where the grill 3 is temporarily fixed to the casing 1. Thus, the circulator 100 can improve the workability of the work in which the worker fixes the grill 3 to the casing 1. In the circulator 100, since the grill 3 is temporarily fixed to the casing 1, an operator can attach the grill 3 to the casing 1 alone.

  The circulator 100 includes a temporary fixing groove 7 having a width 7W larger than the diameter 5d of the shaft portion 5S of the temporary fixing screw 5 and a width 7W smaller than the diameter 5D of the head 5H of the temporary fixing screw 5. Have. With such a structure, even if the main fixing screw 11 is removed after the main fixing, the temporary fixing screw 5 can support the grill 3 at the portion of the temporary fixing groove 7. As a result, it is possible to reduce the possibility of the grill 3 falling during the work of attaching the grill 3 to the casing 1.

  The circulator 100 has a viewing window 9 at a portion where the guide plate 17 covers the temporary fixing hole 6 and the main fixing hole 8 when the temporary fixing hole 6 and the main fixing hole 8 are viewed from the indoor side RS. With such a structure, when the temporary fixing hole 6 of the grill 3 is inserted into the temporary fixing screw 5 fixed to the casing 1, the operator can visually recognize the insertion position from the indoor side RS. In addition to this, the operator can visually recognize the main fixing hole 8 from the indoor side RS when aligning the main fixing screw hole 10 and the main fixing hole 8. For this reason, the circulator 100 can improve the workability of the temporary fixing and the main fixing work.

  In the circulator 100, when the grill 3 is permanently fixed to the casing 1, the guide plate 17 hides the temporary fixing screw 5. That is, when the viewing window 9 is viewed from the indoor side RS after the grill 3 is permanently fixed to the casing 1, the viewing window 9 opens at a position where the temporary fixing screw 5 cannot be visually recognized. Such a structure prevents the temporary fixing screw 5 from being exposed when the grill 3 is viewed from the indoor side, so that the design of the circulator 100 can be improved.

  The temporary fixing screw 5 is preferably a stepped screw. When the temporary fixing screw 5 is fixed to the casing 1 by the stepped screw, a gap of a certain size is secured between the indoor RS surface of the casing 1 and the head 5H of the temporary fixing screw 5. be able to. As a result, the gap between the casing 1 and the head 5H of the temporary fixing screw 5 required when the operator slides the grille 3 can be easily secured, so that workability is further improved.

  In the present embodiment, the attachment target of the casing 1 may be a wall. In this case, the circulator 100 is a wall-embedded type. When the circulator 100 is a wall-embedded type, the place where the circulator 100 can be installed can be increased. In the case where the circulator 100 is a wall-embedded type, if there is an effective wall surface space in the room, the wall surface space can be used effectively and the mounting position of the circulator 100 can be lowered. As a result, the workability of the work when attaching the circulator 100 can be improved. When circulator 100 is a wall-embedded type, it is possible to avoid interference between illuminator and fire alarm installed on the ceiling and circulator 100.

  In the present embodiment, the circulator 100 has four temporary fixing holes 6, temporary fixing grooves 7, main fixing holes 8, main fixing screw holes 10, and temporary fixing screw holes 12. These numbers are not limited to four.

  The configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit and change the part.

  1 Casing, 2 Fixing bracket, 3 Grill, 4 Impeller, 5 Temporary fixing screw, 6 Temporary fixing hole, 7 Temporary fixing groove, 8 Fixing holes, 9 Viewing window, 10 Fixing screw holes, 11 Main fixing screws, 12 Temporary fixing screw holes, 13 bolts, 14, 16 nuts, 15 suspension bolts, 17 guide plates, 100 circulators.

Claims (4)

A casing having a main fixing screw hole into which the main fixing screw is screwed and a temporary fixing screw hole into which the temporary fixing screw is screwed, on the indoor side surface;
A blower housed in the casing;
A fixing bracket for fixing the casing to a mounting target;
A grill fixed to the indoor-side surface of the casing,
The grill has a main fixing hole, which is a long hole having a width smaller than the diameter of the head of the main fixing screw, a width larger than the diameter of the shaft portion of the temporary fixing screw, and the temporary fixing screw. A temporary fixing groove having a width smaller than the diameter of the head and a temporary fixing hole that is connected to the temporary fixing groove and that is larger than the diameter of the head of the temporary fixing screw is provided in a portion attached to the casing. A circulator characterized by comprising:   The circulator according to claim 1, wherein the attachment target is a ceiling or a wall. The grill includes a guide plate having a viewing window on the indoor side surface,
The viewing window is a portion where the guide plate covers the temporary fixing hole and the main fixing hole when the temporary fixing hole and the main fixing hole provided in the grill are viewed from the indoor side. Formed into
When the grill is permanently fixed to the casing, the guide plate covers the temporary fixing screw when the temporary fixing screw provided on the grill is viewed from the indoor side. The circulator according to claim 1, wherein the circulator is not formed in the portion.   The circulator according to any one of claims 1 to 3, wherein the temporary fixing screw is a stepped screw.

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