JP3791069B2 - How to install the vertical blade - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for attaching a vertical blade. More specifically, the present invention relates to a method of attaching a vertical blade such as that provided in the air outlet of an air conditioner or the like to a connecting rod extending in the left-right direction in order to switch the wind direction in the left-right direction.
[0002]
[Prior art]
In many cases, vertical blades 110 as shown in FIG. 4 are provided inside the air outlet of the air conditioner in order to switch the wind direction to the left-right direction. The vertical blade 110 is made of polypropylene and includes a blade body 111 having a support shaft 117. On the upper edge 111c of the downstream portion 111d of the blade body 111, an engagement shaft 112 having a substantially conical protrusion 113 at the tip is integrally formed. On the other hand, the connecting rod 120 made of an elongated plate-like polypropylene is formed with a round hole 121 for fitting the engaging shaft 112 of the vertical blade 110 and a pair of slits 122 and 123 connected to the round hole 121. Yes. The diameter of the round hole 121 is set to be larger than the diameter of the engagement shaft 112 and smaller than the diameter of the conical protrusion 113 (the bottom surface 113b thereof). However, the round holes 121 can be easily expanded when the portions 120c and 120d adjacent to both sides of the slits 122 and 123 bend outward. When the vertical blade 110 is attached to the connecting rod 120, the position of the engagement shaft 112 and the round hole 121 is adjusted in a state where the blade body 111 is pivotally attached to the air outlet of the air conditioner via the support shaft 117. The connecting rod 120 is pressed against the upper edge 111c of the downstream portion 111d of the blade body 111 from above. The conical protrusion 113 formed at the tip of the engagement shaft 112 has a diameter larger than that of the round hole 121, but the conical surface 113 a of the conical protrusion 113 has portions 120 c on both sides of the slits 122 and 123 of the connecting rod 120. The round hole 121 is expanded by bending 120d outward. As a result, the conical protrusion 113 can pass through the round hole 121. As a result, the engagement shaft 112 of the vertical blade 110 is fitted into the round hole 121 of the connecting rod 120. Once fitted, the bottom surface 113b of the conical protrusion 113 and the upper edge 111c of the downstream portion 111d of the blade body 111 are connected even if the engaging shaft 112 is about to be detached from the round hole 121 of the connecting rod 120 in the vertical direction. The rod 120 is locked to the plate surfaces 120a and 120b, respectively. Therefore, the engaging shaft 112 does not inadvertently leave the round hole 121 of the connecting rod 120. After the attachment, when the connecting rod 120 is moved to the left and right (the direction indicated by “後” in FIG. 4), the blade body 111 of the vertical blade 110 receives a force to the left and right via the engagement shaft 112, It is rotated around 117.
[0003]
[Problems to be solved by the invention]
By the way, recently, there is a technique for molding the vertical blade 110 with an elastomer (a general term for polymer materials having rubber-like elasticity at room temperature, including synthetic rubber, polyisobutylene, polyethylene, certain polyesters, and the like). Proposed. When the vertical blades 110 are made of an elastomer, the wind direction can be switched to the left and right directions by moving the connecting rod 120 to the left and right to bend the blade body 111 to the left and right.
[0004]
However, when the vertical blade 110 having the above-described shape is simply formed by an elastomer, the engagement shaft 112 and the conical protrusion 113 do not have sufficient rigidity, so that the conical protrusion 113 smoothly penetrates the round hole 121 of the connecting rod 120. As a result, there is a problem that it is difficult to attach the vertical blade 110 to the connecting rod 120.
[0005]
SUMMARY OF THE INVENTION An object of the present invention is to provide a method for attaching a vertical blade that can easily attach a vertical blade made of soft resin having flexibility to a connecting rod made of hard resin.
[0006]
[Means for Solving the Problems]
To achieve the above object, a method of mounting the vertical blade according to claim 1, a vertical blade made of soft resin having flexibility to a method of attaching to install them perpendicular vane connecting rod made of hard resin,
The vertical blade includes a blade body supported inside the air outlet, a vertical engagement shaft formed on a downstream portion of the blade body, and an annular protrusion formed on the outer periphery of the distal end of the engagement shaft. The connecting rod is formed with a hole for fitting the engaging shaft and a groove for passing the hole to the periphery of the rod. The diameter A of the hole of the connecting rod, the width of the groove B, between the diameter C of the engagement shaft and the outer diameter D of the annular projection,
B <C <A <D
There is a relationship
In a state where the engagement shaft is stretched in the vertical direction so that the diameter of the engagement shaft is smaller than the width B of the groove, the engagement shaft is fitted into the hole through the groove, and then the engagement shaft It is characterized by canceling the stretching in the vertical direction.
[0007]
The method for attaching the vertical blade according to claim 1 is carried out as follows. Initially, the vertical blades are assumed to be spaced from the connecting rod. Engagement axis of the vertical wings are stretched in the vertical direction by the operator, the diameter C of the engagement shaft is small state C ₁ than the width B of the groove of the connecting rod. In this state, the engaging shaft is fitted into the hole through the groove of the connecting rod. Thereafter, the vertical extension of the engagement shaft is released, and the diameter of the engagement shaft returns to the original C. Therefore, even if the engagement shaft of the vertical blade tries to detach horizontally from the hole of the connecting rod through the groove, the outer periphery of the engagement shaft is locked to the inner edge of the hole of the connecting rod. At the same time, even if the engagement shaft tries to detach from the hole of the connecting rod in the vertical direction, the blade body at the base of the engagement shaft and the annular protrusion at the tip of the engagement shaft are respectively engaged with the surface around the hole of the connection rod. Stopped. Therefore, the engaging shaft does not inadvertently disengage from the hole of the connecting rod. In this way, the vertical blade is easily attached to the connecting rod. After the attachment, when the connecting rod is moved to the left and right, the blade body of the vertical blade is bent by receiving a force to the left and right via the engagement shaft, and the wind direction is switched to the left and right direction.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail.
[0011]
Fig.1 (a) has shown the vertical blade | wing 10 provided in the blower outlet of an air conditioner, and the connecting rod 20 to which this vertical blade | wing 10 should be attached.
[0012]
As shown in FIG. 2 (a), the vertical blade 10 is made of an elastomer as a soft resin having flexibility as a whole, and the support portions 16, 17 attached to the blade body 11 and the air outlet of the air conditioner. A vertical engagement shaft 12 formed on the downstream portion 11d of the blade body 11 and an annular protrusion 13 formed on the outer periphery of the front end of the engagement shaft 12 are integrally formed. FIG. 2 (b) shows the support portion 16 and the reinforcing portion 18 provided on the upper edge 11a of the blade body 11 in FIG. 2 (a) as viewed from the I direction, and FIG. ) Shows a cross section taken along line II-II of the wind-cut portion 19 provided at the upstream edge portion 11b of the blade body 11. As can be seen from the figure, the cross section of the wind-cut portion 19 swells in a substantially spindle shape, and is thicker than the other portions of the blade body 11 as with the reinforcing portion 18. FIG. 2 (d) shows the engagement shaft 12 and the annular projection 13 provided on the lower edge 11c of the downstream portion 11d of the blade body 11 in FIG. 2 (a) as viewed from the III direction. The engaging shaft 12 is cylindrical, and the annular protrusion 13 has a constant thickness and an outer diameter. Although omitted in FIG. 1, an annular protrusion 14 having the same shape as the annular protrusion 13 is formed at the base of the engagement shaft 12 along the lower edge 11 c of the downstream portion 11 d of the blade body 11. A pair of ¼ spherical ribs 15 and 15 are formed at the corner between the downstream portion 11d and the annular protrusion 14.
[0013]
A connecting rod 20 shown in FIG. 1 (a) is made of polypropylene as an elongated plate-like hard resin, and has a round hole 21 for fitting the engagement shaft 12, and the round hole 21 connected to the side 20c. The groove 22 to be formed is formed. On the side 20c side of the groove 22, a tapered portion 22a that opens outward for guiding the engagement shaft 12 to the round hole 21 is formed.
[0014]
Between the diameter A of the round hole 21, the width B of the groove 22, the diameter C of the engagement shaft 12, and the outer diameter D of the annular protrusion 13,
B <C <A <D
There is a relationship.
[0015]
The vertical blade 10 is attached to the connecting rod 20 as follows. First, the blade body 11 is attached to the interior of the air outlet of the air conditioner (not shown) via the support portions 16 and 17 (see FIG. 2A), and the vertical blade 10 is separated from the connecting rod 20. To do. As shown in FIG. 3A, the diameter C of the engagement shaft 12 is larger than the width B of the groove 22 of the connecting rod 20. Stretched engagement pin 12 in the vertical direction by the operator, as shown in FIG. 3 (b), the diameter C of the engagement shaft 12 is small state C ₁ than the width B of the groove 22 of the connecting rod 20 The In this state, the engagement shaft 12 is fitted into the round hole 21 through the groove 22 of the connecting rod 20. Thereafter, as shown in FIG. 3C, the vertical extension of the engagement shaft 12 is released, and the diameter of the engagement shaft 12 returns to the original C. Therefore, even if the engagement shaft 12 tries to be separated from the round hole 21 of the connecting rod 20 in the horizontal direction through the groove 22, the outer periphery of the engagement shaft 12 is locked to the inner edge of the round hole 21 of the connecting rod 20. Since the diameter C of the engagement shaft 12 is smaller than the diameter A of the round hole 21, a slight gap δ is generated between the outer periphery of the engagement shaft 12 and the inner edge of the round hole 21. At the same time, even if the engagement shaft 12 is about to detach from the round hole 21 of the connecting rod 20 in the vertical direction, the lower edge 11c of the blade body 11 at the base of the engagement shaft 12 (precisely, FIGS. 2A and 2D). ) And the annular protrusion 13 at the tip of the engagement shaft 12 are respectively engaged with the plate surfaces 20a and 20b around the round hole 21 of the connecting rod 20. This is because the outer diameter D of the annular protrusion 13 is set larger than the diameter A of the round hole 21. Therefore, the engagement shaft 12 does not inadvertently leave the round hole 21 of the connecting rod 20. In this way, the vertical blade 10 can be easily attached to the connecting rod 20 as shown in FIG.
[0016]
After the attachment, when the connecting rod 20 is moved to the left and right (the direction indicated by “⇔” in FIG. 1B), the blade body 11 of the vertical blade 10 receives a force to the left and right via the engagement shaft 12. The deflection and wind direction can be switched to the left and right direction. At this time, since a slight gap δ is generated between the outer periphery of the engagement shaft 12 and the inner edge of the round hole 21, the engagement shaft 12 can smoothly rotate with respect to the connecting rod 20. .
[0017]
【The invention's effect】
As apparent from the above , according to the method for attaching the vertical blades of claim 1, the vertical blades made of flexible soft resin can be easily attached to the connecting rod made of hard resin.
[Brief description of the drawings]
FIG. 1 is a perspective view illustrating a state before and after attaching a vertical blade made of flexible soft resin to a connecting rod made of hard resin according to the present invention.
FIG. 2 is a diagram showing an overall configuration of the vertical blade.
FIG. 3 is a view showing a relationship between an engaging shaft of the vertical blade and a groove and a hole of the connecting rod in a process of attaching the vertical blade to the connecting rod.
FIG. 4 is a diagram for explaining a conventional method of attaching a vertical blade.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Vertical blade | wing 11 Blade body 12 Engagement shaft 13 Annular projection 20 Connecting rod 21 Round hole 22 Groove

Claims (1)

A method for attaching a vertical blade (10) made of a flexible soft resin to a connecting rod (20) made of a hard resin ,
The vertical blade (10) includes a blade main body (11) supported inside the air outlet, a vertical engagement shaft (12) formed in a downstream portion (11d) of the blade main body (11), An annular protrusion (13) formed on the outer periphery of the tip of the engagement shaft (12) is integrally formed,
The connecting rod (20) is formed with a hole (21) for fitting the engaging shaft (12), and a groove (22) for connecting the hole (21) to the periphery of the rod (20c).
Between the diameter A of the hole (21), the width B of the groove (22), the diameter C of the engagement shaft (12) and the outer diameter D of the annular protrusion (13) of the connecting rod (20),
B <C <A <D
There is a relationship
In a state where the engagement shaft (12) is stretched in the vertical direction so that the diameter of the engagement shaft (12) is smaller than the width B of the groove (22), the engagement shaft (12) is moved to the groove (22). ) Through the hole (21), and then the vertical extension of the engagement shaft (12) is released.

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