JP3317675B2 - Silencer for vehicle stop pole - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle stop pole provided with a metal chain housed in a cylindrical metal pole body and capable of being taken out of the pole body. It belongs to the technical field related to the silencing member for a stop pole.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Utility Model Laid-Open Publication No. 4-65818.
As disclosed in Japanese Unexamined Patent Application Publication No. 5-94321 and Japanese Utility Model Laid-Open Publication No. 5-94321, a vehicle stop pole provided at a parking lot entrance or the like to prevent the vehicle from entering is well known. The vehicle stop pole is generally stored in a cylindrical metal pole body extending vertically and when unnecessary, is stored inside the pole body, and is pulled out from an opening provided in an upper portion of the pole body when necessary. A metal chain whose tip is hooked on a chain hook provided on an upper portion of a pole body of an adjacent vehicle stop pole. At the rear end of the chain, a weight member is fixed so as to be located inside the pole body, so that the chain does not come off from the pole body, and it is easy to enter the pole body when storing the chain. ing.

[0003]

However, in the above-mentioned conventional vehicle stopping pole, since the pole body and the chain are both made of metal, when the chain is put in and taken out of the pole body, the chain is attached to the inner peripheral surface of the pole body. And a harsh metallic sound is generated upon contact with the object, which may cause discomfort to workers and residents in the vicinity.

Therefore, in order to prevent the generation of the above-mentioned metallic noise, it is conceivable to provide a cylindrical resin member in the pole body. However, a sufficient noise reduction effect cannot be obtained with a simple cylindrical member. In addition, since there are many types of vehicle stop poles having different sizes and shapes inside the pole body, the cost of the mold and the like is considerably high to cope with all of them.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle stop pole muffling member provided in a pole body of a vehicle stop pole as described above. By devising the configuration, it is possible to cope with various vehicle stop poles at low cost and to obtain a good noise reduction effect.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, a metal chain is provided so as to be housed in a cylindrical metal pole body and to be taken out from the pole body. For a vehicle stop pole silencing member disposed in the pole body of the vehicle stop pole, a flexible member composed of a solid skin layer and a foam layer integrally bonded to the skin layer is intended. The bend was formed so that the skin layer was on the inside and the foam layer was in contact with the inner peripheral surface of the pole body.

[0007] According to the above configuration, the sound deadening member can be easily manufactured simply by bending the flexible member formed of the skin layer and the foam layer, and the sound deadening member can be simply inserted into the pole body. By the elastic action, it can be made to follow the inner peripheral surface of the pole body. For this reason, if the flexible member is cut into an appropriate size, it is possible to cope with various sizes and shapes inside the pole body. The foaming layer can enhance the noise reduction effect as compared with a mere resin cylindrical member, and the skin layer can prevent the foamed layer from being rubbed against the chain and damaged. Therefore, an inexpensive silencing member having a good silencing effect can be easily obtained.

According to the second aspect of the present invention, there is provided a vehicular stop provided in the pole main body, wherein the metal chain is housed in a cylindrical metal pole main body and is provided so as to be able to be taken out from the pole main body. A flexible non-metallic plate-like material, in which a number of hollow strips are arranged side by side, is provided on one side wall of the plate-like material and the hollow strips so as to cross the hollow strips. In a state where a slit is formed from the outer surface of the pole body, the outer surface of the one side wall is substantially in line contact with the inner peripheral surface of the pole body, and the slit is bent so as to extend in the axial direction of the pole body. .

[0009] Thus, the noise reduction member can be easily manufactured only by forming a slit in a plate-like material having hollow strips arranged side by side like a plastic cardboard and bending the plate-like material. In addition, the formation of the slit makes it easier for the plate-shaped material to bend, and the elastic action of the silencing member makes it substantially linear contact with the inner peripheral surface of the pole body only by inserting the silencing member inside the pole body. For this reason, it is possible to cope with various sizes and shapes inside the pole body only by cutting a commercially available plate-shaped material into an appropriate size. In addition, noise can be more effectively eliminated by the hollow portion of the hollow strip. Therefore, it is possible to easily obtain an inexpensive silencing member having a better silencing effect than the first aspect of the present invention.

[0010] According to a third aspect of the present invention, in the second aspect of the present invention, the lining layer is formed on the inner peripheral surface of the plate-shaped material. According to the present invention, it is possible to prevent the rubbing noise (sound of “roughness”) between the plate-shaped material and the chain, and to further enhance the noise reduction effect.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the lining layer is constituted by a solid inner skin layer and a foam layer adhered to the outside of the skin layer.
By doing so, a greater noise reduction effect can be obtained than in the first to third aspects of the present invention.

[0012]

(Embodiment 1) FIG. 3 shows a main part of a vehicle stop pole provided with a vehicle stop pole silencing member 1 according to Embodiment 1 of the present invention. This vehicle stop pole has a cylindrical metal pole body 5 extending in the vertical direction. A lid member 8 is attached and fixed to the upper end portion of the pole body 5 by welding. The pole body 5 is attached to the lid member 8 from a storage tube (not shown) embedded in the ground and capable of storing the pole body 5. A substantially U-shaped lifting hook 9 is provided so that the lifting hook 9 can be lifted. The lifting hook 9 is attached to the lid member 8 so as to be movable in the vertical direction, and is normally located below by its own weight. However, when lifting the pole body 5 from the storage tube, the lifting hook 9 is used. 9 can be moved upward so that the operator can hold it by hand.

In the vicinity of the lower portion of the lifting hook 9, a chain mouth 11 is mounted and fixed to a mouse mounting portion 5 a bridged to the inner peripheral surface of the pole body 5 via a supporting column 11 a by a screw 12. The chain mouth 11 has a through hole 5b formed in a side peripheral surface of the pole
The chain mouth 11 has a concave portion 11b formed on the outside of the pole body 5 so as to be closed from the inside. This recess 11
As shown in FIG. 4, a chain inlet / outlet 11c having an upper portion formed of a substantially semicircle having a small diameter and a lower portion formed of a substantially semicircle having a large diameter is formed at the inclined bottom of b. The chain 6 passes through the chain entrance 11c and the through hole 5b.

An annular hooking member 6a is attached to an outer end of the chain 6 (an end located outside the pole body 5), and an inner end of the chain 6 (the pole body 5).
The weight member 6b is attached and fixed to the end located inside). The hook member 6a and the weight member 6b are set to a size that cannot pass through the chain entrance 11c of the chain mouth 11. The chain 6 is provided so as to be stored in the pole body 5 and to be taken out from the pole body 5. That is, the chain 6 is stored in the pole body 5 when it is unnecessary, and at this time, the hook member 6a at the outer end of the chain 6 is
And the weight member 6b at the inner end of the chain 6 comes into contact with a bottom plate 16 described later. On the other hand, the chain 6 stored in the pole body 5
The weight member 6b at the inner end thereof can be pulled out of the pole body 5 from the chain mouse 11 until the weight member 6b abuts on the chain mouse 11. Is hooked on a chain hook 14 described later provided on the pole body 5 of the vehicle stop pole adjacent to the vehicle stop pole.

On the inner peripheral surface of the pole body 5 opposite to the chain mouth 11 and the axis C of the pole body 5,
The chain hook 14 is attached and fixed by caulking or welding, and a hook portion 14a at the lower end of the chain hook 14 is provided.
In addition, a hooking member 6a at the outer end of the chain 6 of the vehicle stop pole adjacent to the chain hook 14 side of the vehicle stop pole is hooked. Immediately below the chain hook 14, a chain insertion hole 5 c for inserting the tip of the hooking member 6 a at the outer end of the chain 6 in the adjacent vehicle stop pole into the pole body 5 and hooking the chain hook 14. Is formed.

A bottom plate 16 made of hard plastic is provided at the lower end of the pole body 5, and a projection 16a projecting downward and having a pin insertion hole 16b at the tip is formed on the lower surface of the bottom plate 16. I have. A pin member 17 extending in the radial direction of the pole body 5 is inserted into a pin insertion hole 16b of the protrusion 16a of the bottom plate 16.
Penetrates the pole body 5 and both ends are located outside the pole body 5. That is, the bottom plate 16 is fixed so as not to drop by the pin member, and supports the chain 6 stored in the pole body 5 and the sound deadening member 1 described in detail below.

The chain mouse 1 inside the pole body 5
1 and a bottom plate 16, a silencing member 1 is provided. As shown in FIGS. 1 and 2, the silencing member 1 is a flexible non-slip member having a large number of hollow strips 2a, 2a,. Metal plate 2
It is composed of The plate-shaped material 2 is, specifically, a generally available plastic cardboard made of polypropylene. Then, the sound deadening member 1 converts the plate-like material 2 into one side wall 2c and the hollow strut wall 2d of the plate-like material 2.
In the state where slits 2b, 2b,... Are formed from the outer surface of the one side wall 2c so as to cross the hollow lines 2a, 2a,. 2c are formed in a cylindrical shape such that both sides in the circumferential direction of each slit 2b on the outer surface of the pole body 2 substantially contact the inner circumferential surface of the pole body 5 and the slits 2b, 2b,. It is a meander. The slits 2b are provided at substantially equal intervals in the circumferential direction of the bent plate-like material 2, and the slit width is larger than the state before the bending by bending the plate-like material 2 into a cylindrical shape. Has become.

In order to manufacture the muffling member 1, first, the plate member 2 is cut into a substantially rectangular shape having a predetermined size. That is, the plate-shaped material 2 is cut so that the width thereof substantially matches the circumferential length of the inner peripheral surface of the pole body 5 and the length substantially matches the distance between the chain mouth 11 and the bottom plate 16. In addition, each hollow strip 2a of the plate-shaped material 2 is made to extend in the width direction of the cut plate-shaped material 2.

Thereafter, slits 2b, 2b,... Are formed in one side wall 2c of the plate-like material 2. Specifically, as shown in FIG. 5, the plate-shaped material 2 is set on a set table (not shown) in a planar state before bending, and on the upper side of the plate-shaped material 2,
A cutter 21 having substantially the same length as the length of the plate-like material 2 is disposed so as to be perpendicular to each hollow strip 2a. Then, the cutter 21 is stroked downward to cut one slit 2b from the outer surface of the one side wall 2c into the one side wall 2c and the hollow strip wall 2d so as to cross the hollow strips 2a, 2a,. Form. At this time, the hollow wall 2d of the plate material 2
However, in the case of a commercially available plastic cardboard, it is not perpendicular to the one side wall 2c and the other side wall, and is usually inclined as shown in FIG. 5, but since the cutter 21 is cut perpendicularly to each hollow strip 2a, There is no particular problem regarding the formation of the slits 2b.

Subsequently, the cutter 21 is moved in the direction in which the hollow strips 2a of the plate member 2 extend, and each slit 2b is formed in one side wall 2c of the plate member 2 in the same manner as described above. still,
A plurality of cutters 21, 21,...
b may be formed at once.

Next, as shown in FIG. 6, the plate-like material 2 is slit so that both end faces in the width direction thereof are in contact with each other.
are bent into a cylindrical shape with one side wall 2c having b, 2b,. That is, the plate member 2 is bent so that each slit 2 b extends in the direction of the axis C of the pole body 5. At this time, since the slit width of each slit 2b becomes large,
Even if the radius of curvature is relatively small, the plate-shaped material 2 bends easily.
Further, even if both end surfaces in the width direction of the plate-shaped material 2 are shifted from each other in the radial direction, the side wall portion of one end surface abuts against the hollow wall portion of the other end surface. And it is easy to match both end faces.

When the plate member 2 is inserted into the inside of the pole body 5 in a bent state as described above, the respective slits 2b on the outer surface of the one side wall 2c are formed by the elastic action.
Are substantially in line contact with the inner peripheral surface of the pole body 5. The plate member 2 may be inserted from the lower end of the pole body 5 before the bottom plate 16 is inserted into the inside of the pole body 5 and fixed by the pin member 17. Alternatively, the lid member 8,
The chain mouth 11 and the chain hook 14 may be inserted from the upper end of the pole body 5 before being fixed.

In the vehicle stop pole in which the muffling member 1 is provided inside the pole body 5 as described above, even if the chain 6 is put in and out of the chain mouth 11, the chain 6 and the pole body 5 do not directly contact each other. No harsh metal sounds are generated. In addition, the hollow member 2a
Since the hollow portion is formed by this, an excellent noise reduction effect can be obtained unlike a mere resin cylindrical member.

On the other hand, the production of the muffling member 1 is performed only by cutting a commercially available plate-like material 2 into a predetermined size, forming each slit 2b with a cutter 21, and bending the slit 2b into a cylindrical shape. It is very simple, and the manufacturing cost of the silencing member 1 can be reduced.

Further, by changing the cutting size of the plate-shaped material 2, it is possible to easily cope with another vehicle stop pole having a different inside diameter of the pole body 5. Moreover, even if the inner peripheral surface of the pole body 5 is not circular,
It can be brought into substantially linear contact with the inner peripheral surface of the pole body 5 by its elastic action only by inserting it into the inside. For this reason, it can respond to various vehicle stop poles at low cost.

(Embodiment 2) FIGS. 7 and 8 show Embodiment 2 of the present invention (in the following embodiments, the same parts as in FIGS. A flexible member 3 composed of a solid skin layer 3a and a foam layer 3b integrally bonded to the skin layer 3a instead of the plate-like material 2 in the first embodiment is omitted. Is used. That is, in this embodiment, the sound deadening member 1 is configured such that the flexible member 3 is arranged such that the skin layer 3a of the flexible member 3 is on the inside and the foam layer 3b is in contact with the inner peripheral surface of the pole body 5. It is made by bending. The skin layer 3a is made of thermoplastic olefin (TPO), vinyl chloride, rubber, or the like.
The foam layer 3b is made of polypropylene, polyethylene, rubber, or the like.

Therefore, in the second embodiment, similarly to the first embodiment, the sound deadening member 1 can be easily manufactured only by bending the flexible member 3 and can cope with various vehicle stop poles. be able to. In addition, sound can be satisfactorily eliminated by the foam layer 3b of the flexible member 3, and the skin layer 3a can prevent the foam layer 3b from rubbing against the chain 6 and being damaged.

(Embodiment 3) FIG. 9 shows Embodiment 3 of the present invention.
In this embodiment, the lining layer 4 is formed on the inner peripheral surface of the plate-shaped material 2 in the first embodiment. That is, in the second embodiment, like the flexible member 3 in the second embodiment, the lining layer 4 includes a solid inner skin layer 4a and a foam layer 4b adhered to the outside of the skin layer 4a. It is composed of Both the skin layer 4a and the foam layer 4b are made of the same material as the flexible member 3 in the second embodiment.
Then, the lining layer 4 is not bonded to the plate material 2,
Just like the flexible member 3 in the second embodiment, it is merely bent and inserted inside the plate member 2.
Even in this case, the chain mouth 11 and the bottom plate 16 are so fixed that the plate-shaped material 2 and the lining layer 4 do not move in the vertical direction.
If they are regulated by, they do not shift from each other in the vertical direction.

Therefore, in the third embodiment, it is possible to prevent the lining layer 4 from generating a rubbing sound (sound of “rattle”) between the plate-like material 2 and the chain 6. Has the foamed layer 4b, so that the noise reduction effect can be maximized.

As shown in FIG. 10, if the plate-shaped material 2 having the lining layer 4 formed on the upper surface thereof is provided on the upper side of the bottom plate 16 without bending, the bottom plate 16 and the chain 6 can be in contact with each other. Sound generated when touching can be eliminated.

In the third embodiment, the lining layer 4 has a two-layer structure similar to that of the flexible member 3 in the second embodiment. It is possible to prevent the rubbing sound between the material 2 and the chain 6 from occurring and to enhance the sound deadening effect.

Further, in each of the above-described embodiments, the vehicle stopping pole is configured such that the pole body 5 can be stored in the storage cylinder. The invention can be applied.

[0033]

As described above, according to the first aspect of the present invention, a solid skin layer and a solid skin layer are integrally provided as a vehicle stop pole silencing member disposed in the pole body of the vehicle stop pole. The flexible member constituted by the adhered foam layer was bent so that the skin layer was on the inside and the foam layer was in contact with the inner peripheral surface of the pole body. Further, in the invention of claim 2, the flexible non-metallic plate-like material having a number of hollow strips arranged in parallel is placed on one side wall and the hollow strip wall of the plate-like material so as to cross the hollow strip. In a state in which the slit is formed from the outer surface of the side wall, the outer surface of the one side wall is substantially in line contact with the inner peripheral surface of the pole body, and the slit is bent so as to extend in the axial direction of the pole body. . Therefore, according to these inventions, it is possible to cope with various vehicle stop poles at low cost, and it is possible to reliably prevent the generation of harsh metal sounds.

According to the third aspect of the present invention, since the inner lining layer is formed on the inner peripheral surface of the plate-like material, it is possible to prevent the rubbing noise between the plate-like material and the chain, thereby further improving the noise reduction effect. Can be achieved.

According to the fourth aspect of the present invention, since the inner lining layer is constituted by the solid inner skin layer and the foam layer adhered to the outer side of the skin layer, the noise reduction effect can be maximized. .

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a sound deadening member for a vehicle stop pole according to Embodiment 1 of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a cross-sectional view showing a main part of a vehicle stop pole provided with the sound deadening member of FIG. 1;

FIG. 4 is a view in the direction of arrow IV in FIG. 3;

FIG. 5 is an enlarged perspective view showing a state in which a slit is formed on one side wall of a plate-like material by a cutter.

FIG. 6 is an enlarged perspective view showing a state in which a plate-shaped material is bent into a cylindrical shape so that both end surfaces in the width direction thereof are in contact with each other.

FIG. 7 is a diagram corresponding to FIG. 2, showing the second embodiment.

8 is a sectional view taken along line VIII-VIII in FIG.

FIG. 9 is a diagram corresponding to FIG. 2, showing the third embodiment.

FIG. 10 is a cross-sectional view of a main part of a vehicle pawl silencing member according to a modification of the third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Silence member for vehicle stop pole 2 Plate-like material 2a Hollow strip 2b Slit 2c One side wall of plate-like material 2d Hollow strip wall 3 Flexible member 3a Skin layer 3b Foam layer 4 Lining layer 4a Skin layer 4b Foam layer 5 Pole Body 6 Chain C Pole body axis

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E01F 13/00

Claims (4)

(57) [Claims] 1. A vehicle stop pole silencing member disposed in the pole body of a vehicle stop pole provided with a metal chain housed in a cylindrical metal pole body and detachable from the pole body. A flexible member composed of a solid skin layer and a foam layer integrally adhered to the skin layer is attached to the flexible member by the skin layer inside and the foam layer on the inner peripheral surface of the pole body. A sound deadening member for a vehicle stop pole, which is bent so as to be in contact with the vehicle stop pole. 2. A vehicle stopping pole provided in the pole body, wherein the metal chain is housed in a cylindrical metal pole body and is detachably provided from the pole body. A flexible, non-metallic plate-like material having a large number of hollow strips
In the state where a slit is formed from the outer surface of the one side wall so as to cross the hollow line on one side wall and the hollow line wall of the plate-like material,
A sound deadening member for a vehicle stop pole, wherein an outer surface of the one side wall is substantially in line contact with an inner peripheral surface of the pole body and the slit is bent so as to extend in an axial direction of the pole body. 3. The muffling member for a vehicle stop pole according to claim 2, wherein an inner lining layer is formed on an inner peripheral surface of the plate-shaped material. 4. The sound deadening member for a vehicle stop pole according to claim 3, wherein the inner lining layer is constituted by a solid inner skin layer and a foam layer adhered to the outside of the skin layer.