JP6671192B2 - Circulator - Google Patents

Description

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

  In a conventional circulator, as shown in Patent Literature 1, a casing containing a blower is fixed to a ceiling, and then a grill is attached to a lower surface of the casing. Also, when mounting the grill, mount the positioning screw on the upper surface of the grill so that the tip of the positioning screw is vertically upward, insert the positioning screw into the positioning hole provided on the lower surface of the casing, and attach the grill to the grill. After adjusting the position with the casing, it was fixed with the fixing screw.

JP 2003-227639 A

  However, in the circulator of Patent Literature 1, when the grill is attached to the casing, one person needs to support the grill and another person needs to tighten and fix the screw, and the grill cannot be attached to the casing by one person. In addition, the work of inserting the positioning hole of the casing and the positioning screw attached to the grill is a blind work, and since the mounting work is performed at a high place, the work of fixing the grill to the casing is easy. 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 having improved workability of fixing a grill to a casing.

In order to solve the above-described problems and achieve the object, a circulator according to the present invention includes: 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. A casing provided on the surface, a blower accommodated in the casing, a fixture for fixing the casing to a high position on a ceiling or a wall, and a grill fixed on the indoor side surface of the casing. The grill has a long hole whose width is smaller than the diameter of the head of the main fixing screw, the width of the grill is larger than the diameter of the shaft of the temporary fixing screw, and the diameter of the head of the temporary fixing screw. A temporary fixing groove having a smaller width 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 are provided in a portion attached to the casing. The grill is provided with a guide plate having a viewing window on the indoor side surface, and the viewing window is provided with a guide plate for temporary fixing when the temporary fixing hole and the main fixing hole provided on the grill are viewed from the indoor side. The guide plate is formed in a portion covering the hole and the main fixing hole, and the guide plate is provided with a guide plate when the temporary fixing screw provided on the grill is viewed from the indoor side when the grill is permanently fixed to the casing. It is not formed on the portion that covers the fixing screw.

  ADVANTAGE OF THE INVENTION According to this invention, it is effective in the ability to provide the circulator which improved workability of the operation | work which fixes a grill to a casing.

Perspective view of a circulator according to an embodiment The enlarged view which expands and shows the fixed position of the grill and casing before temporary fixing of the circulator which concerns on embodiment. The enlarged view which expands and shows the fixed position of the grill and the casing after the main fixation of the circulator according to the embodiment. Front view of the circulator casing according to the embodiment as viewed from the indoor side Perspective view after attaching a grill to circulator according to embodiment Front view of the circulator grill according to the embodiment viewed from the indoor side FIG. 3 is a sectional view of the circulator taken along line VII-VII shown in FIG. 3. FIG. 3 is a sectional view of the circulator taken along line VIII-VIII shown in FIG. 3. FIG. 2 is an enlarged view showing a further fixed position of the grill and the casing shown in FIG. 2. FIG. 3 is an enlarged view showing the fixed position of the grill and the casing shown in FIG. 3 in a further enlarged manner.

  Hereinafter, a circulator according to an embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited by the embodiment.

Embodiment.
FIG. 1 is a perspective view of the circulator according to the embodiment. FIG. 2 is an enlarged view showing a fixed position between the grill and the casing before the circulator according to the embodiment is temporarily fixed. FIG. 3 is an enlarged view showing a fixed position of the grill and the casing after the permanent fixation 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 a grill is attached to the circulator according to the embodiment of the present invention. FIG. 6 is a front view of the grill of the circulator according to the embodiment of the present invention as viewed 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 taken along line VIII-VIII shown in FIG.

  As shown in FIG. 1, circulator 100 of the present embodiment has a rectangular parallelepiped casing 1, a fixing metal 2 for fixing casing 1 to an object to be mounted, and a grill fixed to surface 1RP of casing 1 on the indoor side RS. 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 of 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 houses the impeller 4. In the present embodiment, the casing 1 is manufactured by sheet metal working, but the casing 1 is not limited to this. The rectangular parallelepiped casing 1 has an opening 1H on one surface. The mounting surface 1RP is a portion where a part of the casing 1 projects 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 1RP.

  The fixing fitting 2 is a fitting for fixing the casing 1 to the suspension bolt 15. The fixing fitting 2 is attached to a pair of side surfaces 1Sf, 1Ss of the casing 1, as shown in FIGS. The pair of side surfaces 1Sf, 1Ss is 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. A bolt 13 and a nut 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.

  The grill 3 includes a temporary fixing hole 6, a temporary fixing groove 7, and a permanent fixing hole 8 as shown in FIG. 2, and a guide plate 17 as shown in FIG. Grill 3 is attached to attachment surface 1RP of casing 1. Grill 3 is larger than mounting surface 1RP of casing 1 and the opening of the ceiling. For this reason, when circulator 100 is attached to the ceiling, grill 3 covers the gap between 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 permanent fixing holes 8 are formed at four locations on a portion 3 </ b> F of the grill 3 attached to the casing 1. Hereinafter, the portion 3F of the grill 3 attached to the casing 1 is appropriately referred to as an attachment portion 3F. The attachment portion 3F is a portion where the grill 3 contacts the casing 1 as shown in FIGS. 7 and 8. 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. Extends along. Thus, the temporary fixing hole 6 and the temporary fixing groove 7 are one opening formed continuously with 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 fixing hole 8 is a long hole. More specifically, the permanent fixing hole 8 has a racetrack shape in which two semicircles 8CH, 8CH are connected by two parallel straight lines 8L, 8L. The main fixing hole 8 extends along the longitudinal direction LG of the grill 3, that is, the direction parallel to the rotation center axis Zr of the impeller 4 provided in the casing 1. The permanent 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 11S of the main fixing screw 11 and smaller than the diameter 11D of the head 11H of the main fixing screw 11. The width 8W is a dimension of the main fixing hole 8 in a direction orthogonal to a direction in which the main fixing hole 8 extends. The width 8W is also the shortest distance between the two straight lines 8L, 8L.

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

  As shown in FIG. 2, when the viewing window 9 sees the temporary fixing hole 6 and the permanent fixing hole 8 from the indoor side RS, the guide plate 17 covers the temporary fixing hole 6 and the permanent fixing hole 8. An opening formed in the portion. The viewing window 9 is disengaged from the position of the temporary fixing screw 5 when the grill 3 is moved to the position where the grill 3 is fully fixed to the casing 1 as shown in FIGS. For this reason, when the grill 3 moves to the position where it is fully fixed to the casing 1, the temporary fixing screws 5 are hidden by the guide plates 17. That is, the viewing window 9 opens at a position where the temporary fixing screw 5 cannot be visually recognized when the viewing window 9 is viewed from the indoor side RS after the grill 3 is completely fixed to the casing 1.

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

  FIG. 9 is an enlarged view showing a further fixed position of the grill and the casing shown in FIG. 2. FIG. 10 is an enlarged view showing the fixing position of the grill and the casing shown in FIG. 3 in a further enlarged manner. A method of 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 so as to leave a thread so that there is a gap between the head 5H of the temporary fixing screw 5 and the casing 1. In the present embodiment, since the temporary fixing screw holes 12 are formed at four positions as shown in FIG. 4, the temporary fixing screws 5 are screwed into the four temporary fixing screw holes 12.

  Next, as shown in FIG. 9, the head 5H of the temporary fixing screw 5 screwed into the casing 1 is inserted into the temporary fixing hole 6 of the grill 3. In the present embodiment, since four temporary fixing holes 6 are formed, the head 5H of the temporary fixing screw 5 is inserted into the four temporary fixing holes 6. Since the guide plate 17 has the viewing window 9, the operator can insert the temporary fixing screw 5 into the temporary fixing hole 6 while visually recognizing the position of the temporary fixing hole 6.

  Next, the worker 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 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 to 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 5S of the temporary fixing screw 5. For this reason, since the head 5H of the temporary fixing screw 5 can support the grill 3 at the portion of the temporary fixing groove 7, 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 holes 8 formed in the grill 3 and the main fixing screw holes 10 formed in the casing 1 coincide with each other when viewed from the indoor side RS. Next, the operator slides the grill 3. As described above, since the permanent fixing hole 8 is formed on the side opposite to the temporary fixing groove 7 with respect to the temporary fixing hole 6, the temporary fixing screw 5 moves to the temporary fixing groove 7. Even if the head 5H of the temporary fixing screw 5 is hidden by the guide plate 17, the permanent 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 positions, the main fixing screws 11 are screwed into the four main fixing screw holes 10.

  As described above, the circulator 100 includes a temporary fixing groove 7 having a width 7W larger than the diameter 5d of the shaft 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 grille 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 3 can be supported. Therefore, the operator can permanently fix the grill 3 while the grill 3 is temporarily fixed to the casing 1. As described above, the circulator 100 can improve the workability of the work of fixing the grill 3 to the casing 1 by the operator. In the circulator 100, the grill 3 is temporarily fixed to the casing 1, so that the 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 at the mounting portion 3F. To have. With such a structure, even if the main fixing screw 11 comes off 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 that the grill 3 falls during the operation 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 inserting the temporary fixing hole 6 of the grill 3 into the temporary fixing screw 5 fixed to the casing 1, the worker can visually recognize the insertion position from the indoor side RS. In addition, when aligning the main fixing screw hole 10 and the main fixing hole 8, the worker can visually recognize the main fixing hole 8 from the indoor side RS. For this reason, the circulator 100 can improve the workability of the temporary fixing operation and the final fixing operation.

  In the circulator 100, the guide plate 17 hides the temporary fixing screw 5 when the grill 3 is fully fixed to the casing 1. That is, when the viewing window 9 is viewed from the indoor side RS after the grill 3 is fully fixed to the casing 1, the viewing window 9 is opened at a position where the screws 5 for temporary fixing cannot be visually recognized. With such a structure, when the grill 3 is viewed from the indoor side, the temporary fixing screw 5 is prevented from being exposed, 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 surface of the casing 1 on the indoor side RS 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, which is necessary when the operator slides the grill 3, can be easily secured, so that the workability is further improved.

  In the present embodiment, the mounting target of the casing 1 may be a wall. In this case, the circulator 100 is of a wall embedded type. When the circulator 100 is a wall-embedded type, the places where the circulator 100 can be installed can be increased. When the circulator 100 is of a wall-embedded type, if there is an effective wall space in the room, the mounting position of the circulator 100 can be lowered by effectively utilizing the wall space. As a result, the workability of the work when attaching the circulator 100 can be improved. In the case where the circulator 100 is a wall-embedded type, interference between the circulator 100 and a lighting device and a fire alarm installed on the ceiling can be avoided.

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

  The configurations described in the above embodiments are merely examples of the contents of the present invention, and can be combined with other known technologies, and can be combined with other known technologies without departing from the gist of the present invention. It is also possible to omit and change parts.

  Reference Signs List 1 casing, 2 fixing brackets, 3 grills, 4 impellers, 5 temporary fixing screws, 6 temporary fixing holes, 7 temporary fixing grooves, 8 fixing holes, 9 viewing windows, 10 fixing screw holes, 11 Main fixing screw, 12 Temporary fixing screw hole, 13 bolt, 14, 16 nut, 15 hanging bolt, 17 guide plate, 100 circulator.

Claims (2)

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 ceiling or a high place on a wall ,
A grill fixed to the indoor side surface of the casing,
The grill is a main fixing hole which is a long hole having a width smaller than a diameter of a head of the main fixing screw, a width larger than a diameter of a shaft portion of the temporary fixing screw, and a width of the temporary fixing screw. A temporary fixing groove having a width smaller than the diameter of the head, and a temporary fixing hole larger than the diameter of the head of the temporary fixing screw, which is connected to the temporary fixing groove, Yes, and
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 in
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. A circulator characterized by not being formed in a part . The circulator according to claim 1, wherein the temporary fixing screw is a stepped screw.

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