JPH0136037Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a ventilation system with an improved mounting structure for an oil sump container for collecting oil flowing down from a filter.

[Technical background of the invention]

Conventionally, the mounting structure of the oil sump container in this type of ventilation system has been to provide an oil receiver below the filter to receive the oil flowing down from the filter, and an inverted L-shaped engagement claw on the rear surface of the oil sump container. A hook portion is provided on the inner surface of the back of the ventilator main body in correspondence with the engaging claw, and is located below the oil drain hole formed in the oil receiver, and a hook portion is provided to protrude, thereby engaging the oil sump container. The claws were hooked onto the hooks of the ventilator body from above for support.

[Problems with background technology]

However, in the conventional configuration described above, the engaging claw for attaching the oil sump container is provided on the rear surface of the oil sump container, so when the engaging claw is hooked to the hook part of the ventilation system main body, The operator cannot see the engaging pawl and the hook part because the oil sump container itself is in the way, and therefore the operator has to rely on intuition to hook the engaging pawl to the hook part, which is extremely troublesome work. . Moreover,
Since the oil sump container is configured to be supported only by hooking its engaging claw onto the hook from above,
If the oil sump container was subjected to vertical vibrations due to vibrations of the ventilation system body during ventilation operation, there was a risk of it falling off by itself.

[Purpose of invention]

This invention was made in consideration of the above circumstances,
Therefore, it is an object of the present invention to provide a ventilation system which allows an oil sump container to be easily attached and which can reliably prevent the attached oil sump container from falling off by itself.

[Summary of the idea]

The present invention includes a receiving member provided below the oil receiver, a support piece extending to the side of the oil sump container and capable of being placed on the receiving member, and a supporting piece provided protruding from the upper surface of the receiving member. The support piece has a protrusion that prevents the support piece from coming off in the forward direction, and a guide part that is provided so as to be partially in contact with the upper surface of the receiving member and is curved upward at the front end. The support piece, which is inserted from the front between the receiving member and the support piece, comes into elastic contact with the support piece when it gets over the protrusion, so that when the oil sump container is attached, If the support piece of the oil sump container is inserted from the front between the receiving member and the guide part of the spring piece and is made to ride over the protrusion, the support piece is placed on the receiving member and the protrusion and the spring piece are separated. It is designed to prevent it from coming off in the forward direction through a cooperative action with.

[Example of idea]

Hereinafter, an embodiment in which the present invention is applied to a range hood fan will be described with reference to the drawings. First, in Fig. 1, 1 is a hood body which is the main body of the ventilation system, and this is made up of a box body 2 whose front and bottom surfaces are open, and a front hood 3 which is attached to the front side of this box body 2 by, for example, screws. The box body 2 and the front hood 3 form an air intake port 4 on the lower surface of the hood body 1. This hood body 1 is located in a kitchen and is attached to a room wall 5 so as to be located above a range (not shown) placed on a cooking table. The attached outer frame 6, this outer frame 6
A blower device 10 is disposed, which includes a fan 7 and a motor 8 disposed inside, a shutter 9 for opening and closing an exhaust port 6a formed in the outer frame 6, and the like. Reference numeral 11 denotes a support piece curved at the upper front side of the box body 2 of the hood main body 1 so as to face diagonally downward toward the rear, and on the upper surface of this support piece 12 is an elastically deformable presser piece 12 made of, for example, a leaf spring. It is fixed. On the other hand, reference numeral 13 denotes an oil receiver made of metal, for example, which is disposed at the lower part of the inner side of the hood main body 1. This is formed in the shape of an oblong box with an open upper surface, and has a U-shaped cross section on the inner surface of its front wall. Receiver piece 1
4 and 14 (see Figure 3) are fixed. The lower ends of the filters 15, 15 are received and supported by the receiving pieces 14, 14, respectively, and the upper ends of the filters 15, 15 are elastically clamped by the support piece 11 and the presser piece 12, respectively. In the bottom portion of the oil receiver 13, a portion A (see FIGS. 2 and 3) located substantially directly below the blower 10 has inclined surface portions 16, 16 that slope downward toward the center. A rectangular flat surface portion 17 is formed at the lowest part of the inclined surface portions 16, 16, and an oil discharge hole 17a is formed in the center of this flat surface portion 17 in a downward cylindrical shape. Now, in FIGS. 1 and 2, reference numeral 18 denotes a substantially rectangular oil sump container detachably provided below the oil discharge hole 17a of the oil receiver 13 as will be described later. As shown in FIG.
A handle part 19 is formed in the front part of this flange part 18a, and support pieces 20, 20 are provided on the left and right sides, respectively. This will be explained based on FIGS. That is, reference numerals 21 and 21 designate a pair of metal receiving members, which integrally have a mounting plate portion 22 bent into a substantially L-shape and connected upwardly on one side edge thereof. An insertion groove 23 that opens forward is formed between the mounting plate 22 and a spring mounting portion 24 bent at the rear edge of the mounting plate portion 22 so as to be inclined backwardly. Each of the receiving members 21, 21 has a mounting plate portion 24 fixed to the outer bottom of the oil receiver 13 by, for example, welding, so as to be located on both sides of the oil discharge hole 17a at the bottom of the oil receiver 13. 25,2
5 is a protrusion provided on the upper surface of the receiving members 21, 21 near the front end; 26, 26 is the receiving member 21, 21;
The spring pieces 26, 26 are screwed to the spring mounting parts 24, 24, and the spring pieces 26, 26 are downwardly inclined forward, and the front part of the spring pieces 26, 26 is slightly behind the protrusions 25, 25 on the upper surface of the receiving members 21, 21. It has guide portions 27, 27 located at and substantially in contact with each other and curved upward at the front end portion. The guide portion 2 of the spring pieces 26, 26
When the support pieces 20, 20 of the oil sump container 18 are inserted from the front between 7, 27 and the receiving members 21, 21, when the support pieces 20, 20 get over the protrusions 25, 25, the spring pieces 26 is the support piece portion 20, 20
It has come into contact with the ball. Also, the receiving member 2
1 and 21 have a guide portion 27 for the spring pieces 26 and 26,
27, the support pieces 20, 20 of the oil sump container 18 are connected to the guide parts 27, 2 of the spring pieces 26, 26.
Introductory portions 28, 28, which are guided between the groove portions 7 and the receiving members 21, 21, are formed in an upwardly forward arc shape continuously from the front portions of the upper edges of the groove portions 22, 22.

Next, the procedure for attaching the oil sump container 18 will be described. First, grasp the handle part 19 of the oil sump container 18 and position the oil sump container 18 in front of the receiving members 21, 21, and align the left and right positions of the oil sump container 18 between the receiving members 21, 21 and the support pieces. The vertical position of the parts 20, 20 is determined by the guide part 27 of the spring pieces 26, 26,
27 and the receiving members 21, 21. At this time, since the support pieces 20, 20 protrude from both the left and right sides of the oil sump container 18, the operator must look at the support pieces 20, 20 and connect them to the receiving members 21, 21 and the spring pieces 26, 26. Positioning can be performed easily and reliably. Then, when the oil sump container 18 is moved horizontally backward, the oil sump container 18 is moved to the receiving member 21,
21, and then the support pieces 20, 20 move on the protrusions 25, 25, and the outer guide parts 27, 20 are inserted between the guide parts 27, 27 of the spring pieces 26, 26 and the receiving members 21, 21. It is inserted by the guiding action of 27. At this time, the support pieces 20, 2 of the oil sump container 18
Even if the height position of 0 is a little high, if the rear edges of the support pieces 20, 20 come into contact with the introduction parts 28, 28 of the receiving members 21, 21 especially provided in this embodiment, the subsequent rearward Due to the movement of the support piece 2
0 and 20 are lowered along the introduction parts 28 and 28, so that the guide parts 27 and 2 of the spring pieces 26 and 26 are reliably moved.
7 and the receiving members 21, 21. When the support pieces 20, 20 are inserted in this manner, the support pieces 20, 20 elastically deform the spring pieces 26, 26 upward when they get over the protrusions 25, 25, so that the spring pieces 26, 26 and is inserted while receiving a pressing force. And finally the support piece 2
0 and 20 are inserted until they come into contact with the rear edges of the insertion grooves 23 and 23, the oil sump container 18 is inserted into both receiving members 2.
The support pieces 20, 20 are placed and supported on the receiving members 21, 21 rearwardly from the front end portions of the spring pieces 26, 26 while being restricted from moving in the left-right direction at the spring pieces 26, 21. 26 returns to its original position and its front end portion substantially contacts the upper surfaces of the receiving members 21, 21, thereby completing the installation work of the oil sump container 18.

In the installation work of the oil sump container 18, the support pieces 20, 20 of the oil sump container 18 can be aligned with the receiving members 21, 21 and the spring pieces 26, 26 while looking at the support pieces 20, 20. . obtain. Also,
The oil sump container 18 can be easily removed by pulling the oil sump container 18 forward.

Therefore, when the installed oil sump container 18 comes off, the oil sump container 18 moves forward and the support piece 2
0,20 must pass through the protrusions 25,25. However, the support pieces 20, 20 are not connected to the protrusion 25,
25, it must move upward against the elastic force of the spring pieces 26, 26. However, such a force to resist the elastic force of the spring pieces 26, 26 can only be obtained by twisting them artificially, and cannot be obtained by vibrations during ventilation operation, etc.; Support piece 2 due to cooperation with 26, 26
As a result of preventing the oil sump container 18 from coming off in the forward direction, the oil sump container 18 is reliably prevented from coming off naturally due to vibrations or the like during ventilation operation.

By the way, oil adheres to the filters 15 during ventilation operation, but the oil does not adhere uniformly over the entire surface of the filters 15, 15, and as shown in FIG. The oil concentrates on the area A corresponding to the width of the hood main body 1, and only a slight amount of oil adheres to the outer part of the area A, and hardly any of the oil adhered to this area flows downward. This is intake port 4
This is because the oil smoke sucked in from the air blower mainly passes through area A of the filters 15, 15 due to the size of the blower 10, and this was also confirmed by the experimental results of the present inventor.

Therefore, in this embodiment, focusing on the fact that the part where the oil adhering to the filters 15, 15 flows down is almost limited to the area A, the oil is limited to only the lower part of the area A at the bottom of the oil receiver 13. Inclined surface portions 16, 16
The configuration is such that As a result, even if the angle of inclination of the inclined surface parts 16, 16 is made sufficiently large in order to improve the flow of oil, the oil receiver is The central part of the oil sump 13 does not fall too low, and therefore the position of the oil sump container 18 does not fall too low, making it possible to improve the appearance. In addition, the oil discharge hole 17a
Since it is formed into a downward cylindrical shape, the oil drain hole 17a
The oil that has flowed into the oil drain hole 17a flows downward along the inner circumferential surface of the oil drain hole 17a and drips as drops at the lower end thereof, so that the oil does not go around the outer bottom of the oil receiver 13. So-called oil draining from the oil discharge hole 17a can be reliably performed.

In addition, in the above embodiment, the spring pieces 26, 26
Although the spring mounting parts 24, 24 of the receiving members 21, 21 are provided with screws, the present invention is not limited to this, and for example, as shown in FIG.
9 may be fixed to the outer bottom of the oil receiver 13 by screws or the like. Furthermore, the receiving members 21, 2
1 may not be fixed to the outer bottom of the oil receiver 13, but may be fixed to the back surface of the hood main body 1, for example.

[Effect of idea]

As is clear from the above description, the present invention includes a receiving member provided below an oil receiver, a support piece extending to a side of an oil sump container and capable of being placed on the receiving member, and a support member provided below the oil receiver. a protrusion that protrudes from the upper surface of the member and prevents the support piece from coming off in the forward direction; and a guide that is provided so as to partially contact the upper surface of the receiving member and is curved upward at the front end. and a spring piece that comes into elastic contact with the support piece when the support piece inserted from the front between the guide part and the receiving member gets over the protrusion, When installing the oil sump container, watch the support piece of the oil sump container, align it between the receiving member and the guide part of the spring piece, and move the oil sump container backwards. The support piece of the container can be mounted and supported on the receiving member, and the oil sump container can therefore be easily installed.Moreover, the support piece of the oil sump container in the attached state is attached to the spring piece and the protrusion. As a result, it is possible to provide a ventilation system that has an excellent practical effect in that it is possible to reliably prevent the oil sump container from falling off naturally due to vibrations during ventilation operation, etc., by preventing it from slipping forward. .

[Brief explanation of the drawing]

Figures 1 to 7 show one embodiment of the present invention, with Figure 1 being a longitudinal sectional view of the whole, Figure 2 being a front view of the whole with the front hood removed, and Figure 3 being a rear view. Figure 4 is a perspective view of the oil receiver seen from the front, Figure 5 is a side view of the main parts showing the mounting structure of the oil sump container, and Figure 6 is the same. FIG. 7 is an exploded perspective view, FIG. 7 is a perspective view of the receiving member with the spring piece removed, and FIG. 8 is a view corresponding to FIG. 5 showing another embodiment of the present invention. In the drawing, 1 is the hood body (ventilator body), 1
3 is an oil receiver, 15 is a filter, 17a is an oil discharge hole, 18 is an oil sump container, 20 is a support piece, 21 is a receiving member, 23 is an insertion groove, 25 is a protrusion, 26 is a spring piece, 27 is a The guide section 28 is an introduction section, 29 is a spring piece, and 29a is a guide section.

Claims (1)

[Claims for Utility Model Registration] 1. An oil receiver is provided below a filter provided in the main body of the ventilation system to receive oil flowing down from the filter,
An oil sump container is removably provided below the oil drain hole formed in the oil receiver, in which a receiving member provided below the oil receiver and an oil sump container extending from the side of the oil sump container are provided. a support piece that can be placed on a receiving member; a protrusion that projects from the upper surface of the receiving member and prevents the support piece from coming off forward;
The support piece has a guide portion formed such that a portion thereof is substantially in contact with the upper surface of the receiving member and is curved upward at the front end portion, and is inserted from the front between the guide portion and the receiving member. a spring piece that comes into elastic contact with the support piece when the support piece moves over the protrusion. 2. A request for registration of a utility model, characterized in that the receiving member is provided with an introduction part that is located forward of the guide part of the spring piece and guides the support piece of the oil sump container to the guide part of the spring piece. Ventilation equipment according to item 1 in scope 1.