JP2537625Y2 - Holder for eyelet member in cover - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an eyelet holding device for detachably attaching to a counterpart member without using fastening means such as screws or clips.

[0002]

2. Description of the Related Art In recent vehicle diesel engines,
In order to reduce the sound emitted from the fuel injection nozzle N disposed on the cylinder head H as shown in FIG. 4 and the sound generated from the combustion chamber, the space between the cylinder head cover Hc and the intake manifold M is covered so as to cover the injection nozzle. A nozzle cover Nc made of synthetic resin is applied to the head cover and the manifold at a plurality of positions at both ends, and a tool is used for maintenance of the engine without using a fastening means such as a screw. The following means for detaching the nozzle cover without using the nozzle cover is used.

That is, at one end (cylinder head cover side) of the nozzle cover Nc, a horseshoe-shaped cover end is opened on the inner surface of the cover end as shown in FIG. 5, and a slit b ₂ is formed at the center of the bottom wall b _1. a plurality of bag bodies b of the required height to the bottom wall b ₁ a flange-like U-shaped and formed to a predetermined distance (shown only one in Fig. 5) provided, each bag b collar-like the bottom wall b _1, the eyelet member a having a recess a ₂ constricted along the periphery and has an insertion hole a ₁ pin p to the central portion forms a horseshoe shape made of an elastic material such as soft rubber The constricted recesses a ₂ are fitted and mounted respectively, and the eyelets a are provided with pins p provided on the end of the cylinder head cover Hc.
And joined from above.

On the other end side (intake manifold side) of the nozzle cover Nc, as shown in FIG. 6, a plurality of vertical recesses d having a semi-elliptical front surface and open front and lower sides are formed at the edge of the cover. It is formed at a predetermined interval, and an inward horizontal U-shaped overhanging collar e is provided at the lower end of each vertical recess d,
Their collar e, above the eye member a constricted mounted by fitting the recess a ₂ from the front side thereof, pushed from above into the pin p provided with respective eyelets member a on the end of manifold M So that they can be combined.

[0005]

The eye member a is made of an elastic material such as a soft rubber or a synthetic resin so as to absorb vibration and sound of the engine, and eliminates rattling of the joint. because it to be mounted on the pin p to the compressed state of the insertion hole a ₁ and slightly smaller than the pin diameter in order, pushed when the pin p of eyelet members a, often under as in FIG. 7 side portion is pushed by the head of the pin p curved deformation, up burr is open side portion as shown in FIG. 8 by subsequent pushing action, the overhanging flange e or bag of longitudinal recesses exits the slit b ₂ When the nozzle cover Nc is lifted and removed from the pin p for engine maintenance, the upper part of the eye member a is deformed and similarly comes off.

[0006] Since the front side of the bag body b and the vertical recess d is open, if the cover is inclined when handling the nozzle cover Nc, the eyelet member a is likely to come off from the open end, and the cover is assembled. Difficult to work.

Therefore, an object of the present invention is to prevent the eye member from coming loose when the cover is assembled, and to prevent the eye member from coming off due to deformation when the cover is attached or detached.

[0008]

SUMMARY OF THE INVENTION In view of the above-mentioned object, the present invention provides a device for holding a cross member of a cover, a vertical recess or a bag having an open end and a bottom at the end of the cover. The vertical recess or bag body has an inward first flange having downward tapered protrusions on both sides of the open end, and an inner portion close to the upper surface when the eyelet member is attached. An eyelet member having a second flange oriented in a direction, having a constricted recess made of a flexible elastic material, having a constricted recess along a peripheral shape, having a pin insertion hole in a height direction, and having a rigid reinforcing plate fixed on an upper side thereof; A locking step is formed at the lower part on both sides of one end of the eyepiece, and the constricted recess of the eye member is fitted into the first collar and the tapered projection of the first collar is engaged with the locking step of the eye member. It is characterized by being locked to.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows the other end portion of the nozzle cover Nc, that is, a part of an end portion for attachment to the intake manifold M. The numeral 1 denotes a vertical recess provided at the edge of the cover at intervals as described above. A front side and a lower side thereof are open, and a U-shaped first flange 2a extending inward and horizontally is provided at a predetermined height position at a lower end portion, and the opening side of the first flange 2a is provided. On both sides of the end portion, a tapered projection 2c which is gently inclined so as to become thicker toward the deep end of the vertical recess is provided downward, and a fixed space is provided above the first flange 2a. In other words, when the next eyelet member is attached to the first collar 2a, the second member of the same shape that extends inward and horizontally is spaced apart so as to be close to the upper surface thereof.
The collar 2b is provided.

Reference numeral 3 denotes an eyelet mainly made of an elastic material such as a soft rubber or a synthetic resin. The front portion has a rectangular shape and a rear portion has a semicircular front rear circle shape. And a locking step 3b is provided on both sides, and a constricted recess 3a is formed in the center in the height direction along the periphery so as to be fitted to the first flange 2a of the vertical recess 1; The upper portion is provided with a pin insertion hole 3c in the height direction, and the upper surface is fixed with a rigid perforated reinforcing plate 4 of the same shape made of metal or a hard synthetic resin such as phenol or nylon. ing.

Then, the eyelet member formed as described above is attached to the constricted recess 3a from the open end side of the vertical recess 1 of the cover.
Is fitted into the first flange 2a, and the constricted recess 3a is sequentially spread downward while being tapered downward by the downward tapered projections 2c provided on both sides of the open end of the first flange 2a. Then, as shown by the dotted line, the tapered projection 2c of the brim locks into the locking step 3b on both sides of the lower part of the eyelet member, and the neck of the eyelet member at that time. The front end of the portion contacts the back end of the first flange 2a, and the eyelet member is mounted so as not to come off in a fixed position.
The collar 2b is close to the upper surface of the eyelet member.

FIG. 2 shows one end of the nozzle cover Nc, that is, a part of the end of the nozzle cover Nc attached to the cylinder head cover Hc. Reference numeral 5 denotes a horseshoe-shaped required height provided at a predetermined interval on the lower surface of the end of the cover. In the bag, the edge side of the cover is opened, and the bottom wall is provided with a similar shaped slit 5d at the center to form a U-shaped inward first flange 5a. On both sides, a tapered projection 5c is formed which is inclined downward so as to become thicker toward the inner end of the bag body, and an eye member is attached to the upper side of the first flange 5a. At the same time, inwardly-facing second flanges 5b are provided at intervals so as to be close to the upper surface, and if the constricted recess 3a of the eye member is fitted into the first flange 5a, as described above, The tapered projection 5c is the locking step 3b.
The eye member is mounted so as not to come off at a fixed position, and the second collar 5b is located close to the upper surface thereof.

With the eyelet members attached to both ends of the nozzle cover Nc, the pin insertion holes 3c of the eyelet members are inserted into the pin p on the intake manifold M and the pin p on the cylinder head cover Hc. 3 from above, the nozzle cover Nc is quickly mounted between them as shown in FIG. At this time, the upper surface of each eyelet member immediately comes into contact with the second collar 2b, 5b by pressing against the pin p, and the deformation and dropout from the first collar 2a, 5a is prevented.

In the mounting state shown in FIG. 3, by lifting both ends of the nozzle cover Nc upward, each eyelet member can be easily removed from the pin p. Since the rigid reinforcing plate 4 is fixed on the main body 3, the eyelet member is prevented from falling off without being similarly deformed.

In the illustrated example, the case where the present invention is applied to the nozzle cover of the engine has been described. However, the present invention is not limited to this, and the present invention is applied to a cover that facilitates attachment and detachment and prevents transmission of vibration and noise on the main body side. Also, the shape of the eyelet member, the bag body, and the brim of the vertical recess are not limited to those shown in the drawings.
Other shapes (eg, rectangles) can be selected.

[0016]

As described above, in the present invention, the cover is attached and detached without using a fastening member, and as a holding device for the eye member, a vertical recess or bag provided at the end of the cover is provided. The inward first flange provided with a downward tapered protrusion at the open end is provided with an inward second flange close to the upper surface of the eye member, while the narrow neck formed of a flexible elastic material is formed along the periphery. And a height-direction pin insertion hole, a rigid reinforcing plate is fixed on the upper side, and a locking step is provided at the lower part on both sides of one end of the eyelet member, and a concavity recess of the eyelet member Is fitted into the first collar of the cover and the tapered projection of the first collar is locked to the locking step of the eye member, so that the attachment of the eye member to the cover is ensured, and Even if the cover is tilted sometimes, the eye member will not come off The assembling work can be performed smoothly, and when the cover is attached or detached, even if the eyelet member is pushed into the pin or pulled out from the pin, the eyelet member is reliably prevented from deforming and falling off, The attachment / detachment work can be performed quickly.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a holding device according to the present invention, showing a mounting portion for an intake manifold.

FIG. 2 is an exploded perspective view of a mounting portion with respect to a cylinder head cover.

FIG. 3 is a sectional view showing an attached state of a cover.

FIG. 4 is a sectional view of an upper part of the engine.

FIG. 5 is an exploded perspective view of a mounting portion to a cylinder head cover by a conventional holding device.

FIG. 6 is an exploded perspective view of a mounting portion to a suction manifold by a conventional holding device.

FIG. 7 is a front view showing a state where a pin is inserted into a conventional eyelet member.

FIG. 8 is a sectional view taken along the line XX of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vertical recess 2a 1st collar 2b 2nd collar 2c Tapered protrusion 3 Main body 3a Constricted recess 3b Locking step 3c Pin insertion hole 4 Reinforcement plate 5 Bag body 5a 1st collar 5b 2nd collar 5c Taper Protrusion Nc Nozzle cover p Pin

Claims (1)

(57) [Scope of request for utility model registration] 1. An end portion of a cover is provided with a vertical recess or a bag body having an open end and a lower side of the cover, and the vertical recess or the bag body has downward tapered protrusions on both sides of the open side end. A first inward flange having a portion, a second inward flange which is close to an upper surface of the eyelet member when the eyelet member is mounted, and has a concavity formed of a flexible elastic material along a peripheral shape; Equipped with a pin insertion hole in the height direction, a reinforcing plate having rigidity is fixed on the upper side, and a locking step is formed at the lower part on both sides of one end of the eyelet member, and the concavity recess of the eyelet member is formed. An eyelet holding device for a cover, wherein the eyelet member is fitted to the first collar and the tapered projection of the first collar is locked to a locking step of the eyelet member.