JP2547052Y2 - Mounting device for interlocking block iron lid and cast iron iron lid receiving frame - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for mounting an iron cover on a receiving frame provided with an interlocking block so that a manhole receiving frame of a conventional cast iron cover laid on a road surface can be used as it is.

[0002]

2. Description of the Related Art Various patterns of interlocking blocks can be freely combined to draw a free pattern, and the tasteful scenery and abrasion resistance are excellent, about five times as strong as asphalt, and the condition of the road surface is good for a long term. As it is kept, as the spread to the city increases, the manhole cover for water, sewage, gas, electricity, etc. currently laid on the road surface will still damage the landscape if it is the same as before, so an iron lid filled with interlocking blocks However, since the thickness of the interlocking block is limited to 60 mm and 80 mm, the iron lid for filling is made of an interlocking block and a mortar for bonding, and the thickness of the iron lid for the interlocking block. The thickness (depth) of the lid is 80m
m, the depth of the receiving frame for receiving the lid bottom is also very deep, since the lid receiving portion is a very deep receiving frame of 80 mm or more. Even if the iron cover for the interlocking block is designed in consideration of the dimensions of the inner peripheral surface of the receiving frame, the receiving frame currently laid cannot be used due to the depth of the receiving frame, and the iron lid for the interlocking block is not used. The inconvenience of having to newly replace the receiving frame is that there is a problem that replacement work costs, purchase of the receiving frame, disposal of the general receiving frame, etc. cause a large amount of expense, and a heavy burden such as suspension of traffic during the construction.

[0003]

The receiving frame of a general cast iron iron cover has a receiving surface of 50 mm or 40 mm in depth, and most of the connections between the iron cover and the receiving frame are hinged. Since the protrusion of the hinge receiving portion is present on the inner peripheral surface of the receiving frame when the is removed, in order to apply the iron cover for the interlocking block, it is necessary to take a cover taking into account the protrusion and the like and a means for preventing floating. is there. When locking the iron lid for the interlocking block to the receiving frame, when operating the lock metal with a crowbar to directly engage or disengage the key portion of the weight integrally formed with the lock metal with the locking notch of the receiving frame. In some cases, the leading end of the key portion of the weight is blurred, and a failure occurs in which the locking notch of the receiving frame is not correctly engaged or disengaged.

[0004]

According to the present invention, a cast iron cover 4 is provided.
Inner peripheral surface 2 for fitting the outer peripheral inclined surface of
Receiving surface 3 on which the lower end surface of the base is placed, a hinge receiving portion 5 having an elongated hole 6 through which the hinge 8 of the iron cover 4 made of cast iron is inserted, and a notch 2 for locking.
5, a receiving frame 1 for a cast iron cover 4 provided with
With the inclined inner peripheral surface 2 and the receiving surface 3 of the receiving frame 1
It is shallower than the bottom surface of the iron lid 12 accommodating the interlocking block 10, protrudes from one outer peripheral surface of the iron lid 12, and is engaged with the inclined inner side surface 2 and the receiving surface 3 of the receiving frame 1. A surface 13, a lower step portion 14, and a projection 15 projecting from the other outer surface of the bottom wall of the iron lid 12 of the interlocking block 10 and engaged with the lower surface of the hinge receiving portion 5 of the receiving frame 1. The iron cover 12 penetrates the other space 17 formed between the outer peripheral surface on the other side of the iron lid 12 and the inner peripheral surface of the receiving frame 1.
Key hole 16 and burl insertion hole 16 ′ formed in the outer peripheral upper surface of the other side, the outer peripheral surface of one side of the iron lid 12 and the receiving frame 1.
Key hole 1 drilled in the outer peripheral upper surface of one side of iron cover 12 through one space portion 19 formed between the inner peripheral surface of
8 and a burl insertion hole 18 ', and an inner wall of the one space portion 19, which is pivotally mounted on a shaft 21 so as to be swingable. A lock hardware 20 provided with a weight, a base of the lock hardware 20 is connected to the lock hardware 20 by a pin 23, an intermediate portion is inserted into a guide hole 24 formed in an outer peripheral wall of the iron cover 12, and a distal end portion is connected to the other side of the receiving frame 1. This is a mounting device for a lock bar 22 disposed so as to be engaged with and disengaged from a lock notch 25 provided on the inner surface, an interlocking block iron cover, and a cast iron iron cover receiving frame.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is for an interlocking block in which an interlocking block having a height of 80 mm is filled and accommodated in a 50 mm or 40 mm deep inner circumferential surface for fitting a lower end surface with an outer inclined surface of a cast iron iron cover. The outer inclined surface of the iron lid and the lower step portion are fitted and placed, and the protrusion protruding from the lower portion on the other side of the interlocking block iron lid is engaged below the hinge receiving portion of the receiving frame, and the interlocking is performed. A lock bar of a lock metal pivotally attached to one side of the block iron cover is engaged with a lock notch of a lower projection on a receiving surface of a receiving frame, and the receiving frame of the cast iron cover and the iron cover for the interlocking block are connected. The locking bar is removed or the lock bar is removed from the locking notch of the receiving frame, and the iron cover for the interlocking block is removed to open the manhole opening of the receiving frame.

A receiving frame 1 shown in FIG. 1 and FIG. 2 is a receiving frame made of a round or square shape of an existing cast iron lid having exactly the same structure. That is, in FIG. 1, the receiving frame inclined portion 2 is formed on the entire inner peripheral surface of the receiving frame 1, and the receiving surface 3 is provided below the receiving frame inclined portion, and the receiving surface 3 of the receiving frame 1 is 50 mm from the upper end surface of the receiving frame 1.
Or, it has a depth of 40 mm, and the lower end surface of the iron cover 4 made of cast iron fitted to the inclined portion 2 of the receiving frame is placed on the receiving surface. A hinge receiving portion 5 protrudes from the inner periphery of one side of the receiving frame 1, and a hinge 8 pivotally mounted on a lower surface of the cast iron cover 4 with a pin 7 is inserted into an elongated hole 6 of the hinge receiving portion. Conventionally, the cast iron cover 4 is opened by rotating the cast iron cover 4 together with the pin 7 using the hinge 8 as a hinge, removing the key on the side opposite to the hinge 8 side, and lifting it with a hand key.

FIG. 2 shows an interlocking block 10 in a recess 12a of a receiving frame having the same structure as the receiving frame shown in FIG.
FIG. 2 is a cross-sectional view of the present invention in which an iron cover (hereinafter referred to as an iron cover) 12 for an interlocking block, which is filled and housed side by side and fixed with an adhesive 11, is fitted. As described above, the receiving surface 3 of the receiving frame 1 for the iron cover made of cast iron is 50 mm or 4 mm from the upper surface of the receiving frame 1.
It is at a depth of 0 mm. A lower step portion 14 of the outer peripheral inclined surface 13 of the iron cover 12 is disposed so as to rest on the receiving surface 3, and a protrusion is formed on the other bottom of the iron cover 12 so as to engage with the lower surface of the hinge receiving portion 5. 15 are formed. 16 and 16 'are iron lids 12
And a crowbar insertion hole drilled through the space 17 provided on the other side of the iron lid 12, and 18 and 18 'are drilled through the space 19 provided on one side of the iron lid 12. This is a burl insertion hole. In a space 19 of the iron lid 12, a lock hardware 20 having a weight in the lower half is deflected to the right (FIG. 2) from the hook insertion hole 18 by a shaft 21 projecting from the iron lid 12. The lock bar 22 is pivotally attached to the lower side of the lock hardware 20 with a lock bar pin 23, and the leading end and the intermediate portion of the lock bar 22 are opened on one side wall of the iron cover 12. The guide hole 24 is engaged with the lock notch 25 of the receiving frame 1. On the upper side of the lock hardware 20, an operation arm 26 which is locked in the hand key insertion hole when locking the lock bar 22 is protruded.

Operation: In FIG. 2, a hand key is inserted into each of the hand key insertion holes 16 and 18 of the iron cover 12, and the hand key inserted into the key key insertion hole 18 is held at the tip of the hand key. 26, the iron cover 12 is moved to the receiving surface 3 of the receiving frame 1 so as to fall down to one side from the other side, and the projection 15 enters below the hinge receiving portion 5, and the outer peripheral inclined surface of the iron cover 12 is inclined. 13 is the inclined surface 2 of the receiving frame 1
Fits. At this time, the operation arm 26 is pushed down by the hand key inserted into the hand key insertion hole 18, the lock hardware 20 is rotated counterclockwise, and the tip of the lock bar 22 is retracted into the guide hole 24. The lock bar 22 enters below the protrusion 3a without hitting the protrusion 3a of the receiving surface 3 of the receiving frame 1. Then, when the hook is pulled out from the hook insertion holes 16 and 18, respectively, the lock hardware 20 is rotated clockwise by the action of the weight portion, and the lock bar 22 is inserted into the lock notch 25 through the guide hole 24. Advance into engagement with the projection 3a,
The iron lid 12 is locked on both sides of the protrusion 3 a of the receiving frame 1.

In order to remove the iron cover 12 from the receiving frame 1, a hand hook is inserted into the hand hook insertion holes 16 and 18, and the operation arm 26 is inserted with the hand hook inserted into the hand hook insertion hole 18 in the same manner as described above. Push down to rotate the lock hardware 20 counterclockwise, remove the lock bar 22 from the lock notch 25 through the guide hole 24, and in this state lift the hand hook inserted into the hand hook insertion hole 18 and lift it. Pull out 12 to the left. With the protrusion 15 of the iron lid 12 removed from the hinge receiving portion 5, hold the hand hook inserted into the hook insertion hole 16 and the hook hooked into the hook insertion hole 18. Iron lid 1
2 is lifted upward and moved laterally to open the receiving frame 1.

[0010]

The interlocking block 10 is accommodated in the recess of the iron lid 12 and the lower step of the outer peripheral inclined surface 13 of the iron lid is attached to the lower projection 3a of the receiving surface 3 of the receiving frame 1 conventionally laid. The manhole can be placed and the manhole can be closed by the interlocking block iron cover 12, and a space is provided on each side of the iron cover 12, and a projection protruding from the lower outside of the iron cover in the space on the other side. Hinged part 5 of receiving frame 1 with part 15
And a lock bar 22 of the lock metal 20 is inserted into a space on one side so that the lock bar 22 of the lock metal 20 can be locked through a guide hole 24 of the iron cover. The manhole of the receiving frame 1 conventionally laid can be opened and closed by the interlocking block iron cover 12. Therefore, it is not necessary to newly manufacture a receiving frame for the interlocking block iron lid, and the interlocking block iron lid 12 having a thickness of about 80 mm can be easily replaced with the conventional 50 mm or 40 mm thick cast iron iron lid receiving frame 1.
The inconvenience of having to newly make and replace the receiving frame 1 of the interlocking block iron lid is eliminated, and the receiving frame 1 of the general-purpose cast iron lid is also used as the interlocking block iron lid 12. It can be used and can prevent the floating of the iron lid 12, which prevents replacement work costs and purchase of receiving frames, disposal of general receiving frames that have been conventionally used, etc., and avoids large expenses such as closing roads during construction. There are excellent effects such as being able to do.
Further, a base is connected to the lock hardware 20 by a pin 23, an intermediate portion is inserted into a guide hole 24 formed in the outer peripheral wall of the iron cover 12, and a distal end portion is formed on one inner peripheral surface of the receiving frame 1. By engaging the notch 25, the lock bar 22 is always guided by the guide hole 24 when the iron cover 12 is fitted to or detached from the receiving frame 1. Has the effect that it can be performed quickly and accurately.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a state where a conventional iron lid and a receiving frame are assembled.

FIG. 2 is a cross-sectional view of a state where an iron lid for an interlocking block and an existing receiving frame are assembled.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Receiving frame 2 Slant inner peripheral surface of receiving frame 3 Receiving surface 3a Lower protruding portion of receiving surface 4 Cast iron cover 5 Hinge receiving portion 6 Long hole 7 Pin 8 Hinge 10 Interlocking block 11 Adhesive 12 Iron cover for interlocking block 12a Inter Concave portion of iron lid for locking block 13 Peripheral inclined surface of interlocking block iron lid 14 Lower step portion of outer peripheral inclined surface of interlocking block iron cover 15 Projection 16 Hand hook insertion hole 17 Space 18 Hand key insertion hole Reference Signs List 19 space portion 20 lock hardware 21 shaft 22 lock bar 23 lock bar pin 24 guide hole 25 notch for lock 26 operating arm

 ──────────────────────────────────────────────────続 き Continuing on the front page (73) Utility model holder 000214696 Nagashima Foundry Co., Ltd. 2-19 Nakamachi, Kawaguchi-shi, Saitama Prefecture (72) Inventor Takeharu Abe 2-12-2 Kotobashi, Sumida-ku, Tokyo Within Industrial Co., Ltd. (72) Inventor Seiji Karasawa 690-6 Sanuki-cho, Ryugasaki-city, Ibaraki Pref. Hei 2-125053 (JP, U) Japanese Utility Model Showa 63-36554 (JP, U) Japanese Utility Model Utility Model Showa 60-42118 (JP, Y2)

Claims (1)

(57) [Scope of request for utility model registration] An inclined inner peripheral surface for fitting an outer peripheral inclined surface of a cast iron cover, and a receiving surface for mounting a lower end surface of the cast iron cover.
A hinge receiving portion 5 having an elongated hole 6 through which the hinge 8 of the cast iron cover 4 is inserted; a receiving frame 1 of the cast iron cover 4 having a notch 25 for locking; and an inclination of the receiving frame 1 of the cast iron cover 4 The inner lid 2 is fitted with the inner peripheral surface 2 and the receiving surface 3 and is shallower than the bottom surface of the iron lid 12 accommodating the interlocking block 10.
2 and an outer peripheral inclined surface 13 and a lower step portion 14 which are engaged with the inclined inner side surface 2 and the receiving surface 3 of the receiving frame 1 and an iron cover 12 of the interlocking block 10.
A protrusion 15 projecting from the other outer surface of the bottom wall of the iron cover 12 and being engaged with the lower surface of the hinge receiving portion 5 of the receiving frame 1; an outer peripheral surface of the iron lid 12 on the other side and an inner peripheral surface of the receiving frame 1; A key insertion hole 16 and a burl insertion hole 16 ′ formed in the other outer peripheral upper surface of the iron lid 12 through the other space portion 17 formed between the iron lid 12 and the outer peripheral surface of one side of the iron lid 12. Hand key insertion hole 18 and burl insertion hole 18 ′ penetrated through one space 19 formed between the inner peripheral surface of receiving frame 1 and the outer peripheral upper surface of one side of iron cover 12.
And a lock metal 20 having an operation arm 26 projecting from an upper end thereof and a weight being provided in a lower half thereof. A base is connected to the lock hardware 20 by a pin 23, an intermediate portion is inserted into a guide hole 24 formed in an outer peripheral wall of the iron cover 12, and a tip portion is provided on the other inner surface of the receiving frame 1. A mounting device for an interlocking block iron lid and a cast iron iron lid receiving frame, comprising a lock bar 22 arranged to be engaged and disengaged from the notch 25.