JPH0718142U - Temporary fastening device for main box in range hood fan - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a temporary fixing device for a main box body in a range hood fan which is excellent in workability and can be mounted after setting the main box body in a temporarily fixed state. [Structure] A hooking portion 4 is vertically provided on a front edge of a top plate portion 1, and a screw head 5 is screwed to a rear portion of a head portion 15 from a lower surface of the top plate portion 1 at a desired distance. The main box 2 is provided with engaging projections 6 which are inserted rearward from the front edges of the left and right plate parts 22 into the engaging parts 4 and engage with each other, and at a portion corresponding to the screw member 5 from the head 15 of the screw member 5. Is also small and is larger than the shaft portion 25 of the screw member 5, and the hooking notch 7 and the head of the screw member 5 are larger.
An insertion hole 8 through which 15 is inserted is opened. The insertion hole 8 is opened at a position facing the head portion 15 of the screw member 5 when the engaging protrusion 6 is located in front of the engaging portion 4, and the engaging notch 7 is provided with the engaging protrusion 6. It is formed at the front position of the insertion hole 8 so as to communicate with the insertion hole 8 so as to guide the shaft portion 25 of the screw member 5 when it is inserted into and engaged with the screw member 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is installed above a cooker such as a kitchen gas stove or an electric stove, and a range hood fan that discharges combustion gas, oil smoke, odor, etc. generated by cooking to the outside, more specifically, a top plate part, A range hood including a main box body having a U-shaped plan view that integrally includes a back plate part and left and right plate parts, a front plate part that covers the main box body from the front, and a blower unit equipped with a filter. The present invention relates to a temporary fixing device for a main casing of a fan.

[0002]

[Prior art]

 Conventionally, the range hood fan is generally shipped from the factory in the form of a hood body with a blower attached to the hood body and a front plate that covers the front surface of the hood body. After fixing to the side wall, attach the front plate to the hood body. In such a range hood fan, the hood itself is considerably heavy, which makes it difficult to mount it by one person, which makes it difficult to carry out the installation work, and makes it difficult to perform maintenance and service parts replacement thereafter. Therefore, the present applicant has already proposed that the top plate part, the back plate part and the left and right plate parts are integrally formed into a main box body in a plan view, and a front plate part that covers the main box body from the front side. We have proposed a range hood fan (hereinafter referred to as a unit type range hood fan) consisting of a fan unit equipped with a filter. In this unit type range hood fan, the top plate is first fixed to the building, and the main box in which the back plate and left and right plate parts are integrally formed on this roof, and the blower unit with a built-in filter are provided. By assembling, there is a merit that installation work at the construction site can be greatly simplified compared to the past.

[0003]

[Problems to be solved by the device]

 However, in such a unit-type range hood fan, the main box is large and bulky, so the roles of the worker supporting the main box and the worker attaching the main box to the top plate are divided. If not done, the installation work cannot be performed. In addition, if the installation work is performed by one person, the main box may be accidentally dropped due to unbalanced holding and may be damaged or the operator's confidence may be injured.

The present invention has been made in view of the above-mentioned conventional circumstances, and the object thereof is to set the main box in a temporarily fixed state and then attach it, which has excellent workability and is safe. An object is to provide a temporary fixing device for the main box of the range hood fan.

[0005]

[Means for Solving the Problems]

 The technical measures taken to achieve the above-mentioned object are to attach a main box plate in a plan view U shape integrally having a back plate part and left and right plate parts to a top plate part fixed to a ceiling wall or a back side wall. A range hood fan that forms a hood, covers the front opening of the main box with a removable front plate, and attaches a blower unit equipped with a filter to the top plate of the hood. A temporary fixing device for the main box when attaching the main box to the top part, which is a hole or recess that is provided on either the top plate or the front half of the main box. -Shaped engaging portion, an engaging protrusion engaging with the engaging portion, a screw member in which the head is screwed to the rear half of the top plate portion from the lower surface of the top plate portion at a desired distance, and the main box body. Of the second half of the screw member, the shaft member being smaller in size than the head of the screw member and provided at a portion corresponding to the screw member. It has a very large notch for locking and an insertion hole for inserting the head of the screw member. The main body is horizontally moved backward so that the engaging notch is inserted so as to guide the shaft portion of the screw member when the engaging protrusion and the engaging portion are brought into the engaging relationship. The gist is that it is formed in communication with the hole.

[0006]

[Action]

 According to the above technical means, the head portion of the screw member is inserted into the insertion hole when the engaging protrusion and the engaging portion face each other. In that state, the main box is horizontally moved rearward so that the engaging projection and the engaging portion are engaged with each other. At this time, the shaft portion of the screw member is formed in the front position of the insertion hole with a catching notch smaller than the head portion of the screw member and larger than the coaxial portion so that the head portion of the screw member is Hooks cannot be removed. As a result, the main box is temporarily fixed so that it cannot fall at two points, the first half and the second half. From this state, attach the main box to the top plate and fix it.

[0007]

[Effect of device]

 INDUSTRIAL APPLICABILITY As described above, the present invention is a temporary fixing device for a main box body in a range hood fan that temporarily fixes the main box body to the top part at two points, namely, the first half part and the second half part, so that it has the following advantages. is there. (1) Since the main box can be temporarily attached to the top plate in a temporarily fixed state, it is a drawback when performing the work of attaching the main box to the top plate while supporting the main box with hands. It is possible to eliminate the trouble that the installation work is laborious and the construction cannot be performed simply, the main box is accidentally dropped and damaged, and the worker is injured. (2) With the head of the screw member screwed to the top plate inserted through the insertion hole provided in the main box, move the main box rearward so that the engaging projection and the engaging part engage each other. Since the main box can be temporarily fixed by moving it horizontally, it is very easy to temporarily fix the main box.

[0008]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. 1 to 4 show a temporary fixing device for the main box in the range hood fan of this embodiment. Reference numerals 1 and 2 denote a top plate portion and a main casing that constitute the hood body A of the range hood fan, and 3 denotes a main body 2 which is housed in the main casing 2 after being fixedly attached to the top plate portion 1. The blower unit is equipped with a filter 3a. The front plate portion that covers the front opening of the main casing 2 is omitted.

The top plate portion 1 is formed into a substantially flat box shape having a rectangular shape in a plan view with a flange portion 11 vertically provided except a front edge by press working using a metal flat plate.

The main casing 2 is formed into a U-shape in a plan view having a back plate portion 12 and left and right plate portions 22, 22 integrally by press working using a metal flat plate as in the case of the top plate portion 1, and has a peripheral edge. The flange portion 32 is formed inward.

The top plate portion 1 is provided with a hole-like or concave engagement portion 4 at the front edge and a screw member 5 at the rear portion.

The engaging portion 4 is formed by forming an opening or a recess in the front hanging piece portions 14, 14 hanging from the right and left portions of the front edge of the top plate portion 1 in a rectangular shape when viewed from the front. Adjacent to each other, a screw hole 24 is opened.

The screw member 5 is in a state in which a head portion 15 is separated from a lower surface of the top plate portion 1 at a desired interval in a rear portion of the top plate portion 1 at a rear portion which is at a right angle to the engaging portion 4. It is screwed to.

The main box 2 is provided with a hooking protrusion 6 which is inserted into the hooking portion 4 and is hooked therein, a hooking notch 7 and an insertion hole 8.

The engaging projection 6 is formed from the metal flat plate 16 riveted at a height position corresponding to the engaging parts 4 on the left and right plate parts 22, 22 front edge flange parts 32, 32 of the main casing 2 to the engaging parts 4 A through hole 26 is formed in a portion of the metal flat plate 16 corresponding to the screw hole 24 so as to project in the direction, that is, the rearward direction.

The latching notch 7 and the insertion hole 8 are provided at the upper end portion of the inner surface of the main casing 2 which is an extension rear portion of the engaging projection 6 so as to correspond to the screw member 5 and the back plate portion 12. Each of the left and right plate portions 22, 22 is formed on a flat plate 9 having a triangular shape in a plan view.

The insertion hole 8 is formed with a diameter that allows the head portion 15 of the screw member 5 to be inserted, and as shown in FIG. 3, the engagement protrusion 6 is located in front of the engagement portion 4, that is, opposite. A hole is formed in the flat plate 9 so that the head portion 15 of the screw member 5 can be inserted therethrough.

As shown in FIG. 4, the latching notch 7 is smaller than the head portion 15 of the screw member 5 and has a larger width dimension than the shaft portion 25 of the screw member 15, and has the above-mentioned insertion shape. With the head portion 15 of the screw member 5 inserted in the hole 8, the main body 2 is horizontally moved backward to insert the engaging projection 6 into the engaging portion 4 and engage the shaft portion of the screw member 5. A portion of the flat plate 9 at a position where the 25 can be guided is cut out in front of the insertion hole 8 and in communication with the insertion hole 8.

In the range hood fan configured as described above, the mounting procedure for the top plate part 1 of the main casing 2 is as follows. The top plate 1 is horizontally attached to the pair of brackets 10, 10. Next, the screw member 5 is screwed into the screw hole formed at the predetermined position of the top plate portion 1 so that the head portion 15 is separated from the lower surface of the top plate portion 1 by a desired distance. The screw member 5 may be screwed to the top plate portion 1 in advance at the factory. Then, the main casing 2 is lifted and the head portion 15 of the screw member 5 is inserted into the insertion hole 8. In this state, as shown in FIG. 3, the engaging projection 6 and the engaging part 4 naturally face each other. Then, the main box 2 is horizontally moved rearward so that the engaging projection 6 is inserted into the engaging portion 4 and engaged therewith. The latching notch 7 guides the shaft portion 25 of the screw member 5 and does not hinder the horizontal movement of the main casing 2, and as shown in FIG. Temporarily stop at two points so that it cannot fall. Finally, the mounting screw 100 is screwed into the screw hole 24 through the through hole 26, and the screw member 5 is screwed in tightly to fix the main body 2 to the top plate portion 1 to form the hood body A. .

In the present invention, the main box 2 is provided with the engaging part 6 and the top plate part 1 is provided with the engaging protrusion 6, and the main case 2 is horizontally moved rearward so that the two form an engaging relationship. It also includes what you do.

[Brief description of drawings]

FIG. 1 is a plan view showing a usage state of a temporary fixing device for a main box in a range hood fan according to the present embodiment.

FIG. 2 is a front view of the same.

FIG. 3 is a side sectional view showing a state in which the head of the screw member is inserted through the insertion hole.

FIG. 4 is a side cross-sectional view showing a state in which the main box is temporarily fixed at two points of a front part and a rear part of the top plate and then the main box is attached and fixed.

[Explanation of symbols]

 A: Hood body B: Back side wall 1: Top plate part 12: Back plate part 22, 22: Left and right plate parts 2: Main box part 3: Blower unit 4: Engagement part 6: Engagement projection part 5: Screw member 15: Screw Member head 25: Screw member shaft 8: Insertion hole 7: Hook notch

Claims (1)

[Scope of utility model registration request] 1. A top plate portion fixed to a ceiling wall or a back side wall,
A hood body is formed by attaching a main box plate having a U-shape in plan view integrally having a back plate part and left and right plate parts, and a front opening part of the main box plate is covered with a removable front plate part, A temporary fixing device for the main box body when the main box body is attached to the top plate part in a range hood fan in which a blower unit equipped with a filter is attached to the top plate part in the hood body, From the lower surface of the top plate part to the latter half of the top plate part, and the hanging projection part which is provided on either one of the front half part with the main box and which hangs down, and the engagement projection part which engages with the engagement part. A screw member in which the head is screwed at a desired distance, and a shaft portion of the screw member that is smaller than the head of the screw member and is provided in a portion corresponding to the screw member in the latter half of the main casing. And a through hole through which the head portion of the screw member is inserted, and the through hole is the engaging hole. When the engaging portion and the engaging portion face each other, a hole is opened at a position facing the head portion of the screw member, and the engaging notch horizontally moves the main box rearward to engage the engaging protrusion and the engaging portion. A main box temporary fixing device in a range hood fan, characterized in that it is formed so as to communicate with the insertion hole so as to guide the shaft portion of the screw member when making a relationship.