JP7089784B2 - Groove lid for opening and closing - Google Patents

Description

The present invention relates to an opening / closing groove lid in which a lid body is pivotally supported on one end side of a receiving frame so as to be openable / closable.

A groove lid called grating is provided at the groove opening of a drainage groove such as a gutter or a crossing groove in order to prevent foreign matter such as fallen leaves and dust from entering the groove. With this type of groove lid, the lid member opens and closes via the shaft with respect to the receiving frame fixed in the groove for inspection and cleaning of the inside of the groove such as waterways, and for snow dumping and water flow change in snowy areas. Many of them are freely configured and can be easily opened and closed. Since this groove lid is generally made of heavy metal due to the demand for strength and durability, a handle that allows the lid body to be lifted and opened / closed to facilitate opening / closing work. A part is provided.

When this groove lid is used for a long period of time, for example, in a place with heavy traffic or a place where heavy vehicles frequently pass, the fixed portion of the groove lid may rattle or even jump. There is a risk. Therefore, the handle portion is provided with an urging member that constantly urges upward and an engaging lever that engages with the receiving frame, and the engaging lever engages with the receiving frame by the urging force of the urging member when the lid body is closed. An opening / closing groove lid that is fixed and pushes down and rotates against the urging force of the urging member at the time of opening to release the engagement with the receiving frame and is liftably engaged with the back of the lid body. It has been proposed (see, for example, Patent Document 1).

Such an opening / closing groove lid further simplifies the structure in order to reduce costs and improve workability at the installation site, while ensuring functionality that prevents flipping up and enables simple opening / closing operations. And it is required to improve the operability.

Japanese Unexamined Patent Publication No. 2013-163895

The present invention has been made in view of the above points, and provides an opening / closing groove lid that effectively prevents flipping up and improves operability to enable a simple opening / closing operation while simplifying the structure. It is to provide.

That is, the invention of claim 1 is a groove lid in which the lid main body is pivotally supported on one end side of the receiving frame, and the open side of the lid main body protrudes from the open side end plate member of the lid main body. Alternatively, a lid-side engaging member having a shaving member to be embedded and a handle portion connected to the shaving member to enable an opening / closing operation of the lid body is provided, and the opening side of the receiving frame when the shaving member protrudes. The piercing member is engaged with the frame-side locking portion projecting inside the end wall portion to make the lid main body unopenable, and the piercing member is retracted by the handle portion to cause the opening-side end plate member. The present invention relates to an opening / closing groove lid characterized in that the lid main body can be opened by being embedded in the side and the engagement state with the frame side locking portion is released.

The invention of claim 2 relates to the opening / closing groove lid according to claim 1, wherein the lid-side engaging member has a urging member that constantly urges the punching member in a protruding direction.

The invention of claim 3 relates to the opening / closing groove lid according to claim 2, wherein a push-in portion made of a slope or a curved surface is formed on the lower surface side of the tip of the punching member.

The invention of claim 4 relates to the opening / closing groove lid according to claim 1, wherein the lid-side engaging member has a punching holding portion for holding the punching member at a protruding position.

The invention according to claim 5 is described in any one of claims 1 to 4, wherein the lid-side engaging member is fixedly attached to the back surface side of a plate-shaped installation portion provided on the open side of the lid body. It relates to the groove lid for opening and closing.

The opening / closing groove lid according to the invention of claim 1 is a groove lid in which a lid main body is pivotally supported on one end side of a receiving frame, and an open side end of the lid main body is on the open side of the lid main body. A lid-side engaging member having a shaving member protruding or embedded from the plate member and a handle portion connected to the shaving member to enable an opening / closing operation of the lid body is provided, and when the shaving member protrudes, the said The shaving member is engaged with the frame-side locking portion projecting inside the opening-side end wall portion of the receiving frame to make the lid main body unopenable, and the shaving member is opened by retracting the handle portion. Since it is embedded in the side end plate member side and the engagement state with the frame side locking portion is released and the lid body can be opened, it is possible to effectively prevent flipping up while simplifying the structure. Therefore, the operability is improved and the opening / closing operation can be easily performed.

In claim 1, the opening / closing groove lid according to the invention of claim 2 has a frame-side locking portion and a punching member because the lid-side engaging member has a biasing member that constantly urges the punching member in the protruding direction. It is possible to avoid inadvertent disengagement with the member.

In claim 2, the opening / closing groove lid according to the third aspect of the present invention has a push-in portion formed of a slope or a curved surface on the lower surface side of the tip of the punching member, so that the punching member is automatically closed during the closing operation. It can be engaged with the frame side locking portion.

In claim 1, the opening / closing groove lid according to the invention of claim 4 has a frame-side locking portion and a punching member because the lid-side engaging member has a punching holding portion for holding the punching member at a protruding position. It is possible to avoid inadvertent disengagement with.

In the opening / closing groove lid according to the invention of claim 5, the lid side engaging member is fixedly attached to the back surface side of the plate-shaped installation portion provided on the open side of the lid body in claims 1 to 4. Therefore, it becomes easy to lift the lid body in the opening direction.

It is a top view of the groove lid for opening and closing which concerns on one Embodiment of this invention. It is sectional drawing of the main part at the time of opening operation near the lid side engaging member of the groove lid for opening and closing of FIG. It is sectional drawing of the main part at the time of the closing operation in the vicinity of the lid side engaging member of the groove lid for opening and closing of FIG. It is sectional drawing of the main part near the rotation shaft part of a lid body. It is a perspective view of the lid side engaging member which concerns on other embodiment.

The opening / closing groove lid 1 shown in FIG. 1 is a groove lid that is installed at the groove opening of a drainage groove such as a gutter or a crossing groove and can be opened / closed for inspection, cleaning, etc., and the lid main body 20 is a receiving frame. It is pivotally supported on one end side of the 10 so as to be openable and closable. The opening / closing groove lid 1 of the present invention is provided with a lid-side engaging member 30 on the open side of the lid main body 20, so that the lid main body 20 cannot be opened or can be opened by operating the lid-side engaging member 30. It is composed.

The receiving frame 10 is a member installed in the groove opening of the drainage ditch and to which the lid main body 20 described later is mounted. As shown in FIG. 1, the receiving frame 10 has a frame main body 11 in which side wall portions 13 and 13 are erected at both ends of a pair of end wall portions 12 and 12 arranged to face each other, and from the lower part to the inside of the frame main body 11. It includes a lid mounting portion 14 that is extended and on which the lid main body 20 is mounted, and a frame-side locking portion 15 that protrudes inside the open-side end wall portion 12a of the frame main body 11. The shape of the frame-side locking portion 15 is not particularly limited as long as it can be engaged with the lid-side engaging member described later, but from the viewpoint of simplifying the structure, for example, as shown in FIGS. It is preferably a plate-shaped member. In FIG. 1, reference numeral 16 is a bearing portion formed in the vicinity of the end portion on one side (rotating shaft side) of each side wall portion 13, 13.

The lid main body 20 is a metal lid for suppressing the ingress of fallen leaves and dust into the drainage ditch and the like, and is generally called grating. Includes groove lids with various names such as gutter groove lids, pit groove lids, and masu lids. As shown in FIG. 1, the lid main body 20 has end plate members 22 and 22 erected at both ends of a pair of side plate members 21 and 21 arranged to face each other, and a plurality of end plate members 22 and 22 are juxtaposed between the side plate members 21 and 21. It has a main member (bearing bar) 23 and a reinforcing member (crossbar) 24 that intersects the main member 23 and is fixed in a grid pattern, and is rotatable on one side to the bearing portion 16 of the receiving frame 10. A rotating shaft portion 25 is formed on the shaft, and a lid-side engaging member 30 is provided on the other side (open side).

The main member 23 is a member that maintains the strength of the lid main body 20, and has various cross-sectional shapes such as an I-shape, a Y-shape, a T-shape, a rectangular shape, and an inverted trapezoidal shape. If necessary, the upper surface of the main member 23 is subjected to non-slip processing such as an uneven surface to prevent slipping. Further, the fixing member 24 is a member that reinforces the main member 23, and is composed of a rod-shaped member such as a round bar, a twist bar (twisted steel), and a cross pipe.

The rotation shaft portion 25 is a member that serves as a rotation shaft when the lid body 20 is opened and closed. The shape of the rotating shaft portion 25 is not particularly limited as long as it has a structure capable of rotatably supporting the bearing portion 16 of the receiving frame 10. Further, in the rotating shaft portion 25, as shown in FIG. 4, it is preferable to reduce the load of the lid main body 20 when the lid is opened by the opening assist member 27. The opening assisting member 27 is composed of a coil spring or the like, and is wound around a shaft rod 26 of the rotating shaft portion 25 to urge the lid main body 20 in the opening direction. In FIGS. It is a department.

The lid-side engaging member 30 is a member provided on the open side opposite to the rotation shaft portion 25 of the lid main body and enables an opening / closing operation of the lid main body 20, and as shown in FIGS. It has a punching member 31 and a handle portion 35. In the figure, reference numeral 40 is a box-shaped punching accommodating member that accommodates and holds the punching member 31 so as to be able to go straight in the advancing / retreating direction.

The punching member 31 is a rod-shaped member that protrudes or is embedded from the opening 22b of the open side end plate member 22a of the lid main body 20. The punching member 31 is formed of an appropriate rod shape such as a columnar column or a prismatic column. Further, in the illustrated example, the push-in portion 32 is formed on the lower surface side of the tip of the punching member 31. The push-in portion 32 is a portion made of a slope or a curved surface formed so as to be reduced toward the tip end side of the punching member 31.

The handle portion 35 is a member that is connected to the punching member 31 and enables opening / closing operation of the lid main body 20 and advance / retreat operation of the punching member 31. The handle portion 35 is not particularly limited as long as it has a shape capable of opening / closing operation and advancing / retreating operation. It is composed of a substantially T-shaped member in a plan view, which is composed of a rod portion 37 that penetrates the 40 and connects the punching member 31 and the grip portion 36.

Further, as shown in FIGS. 2 and 3, the lid-side engaging member 30 has an urging member S that constantly urges the punching member 31 in the protruding direction. As the urging member S, a known coil spring or the like is preferably used. In the illustrated example, the urging member S is arranged between the rear portion of the punching member 31 and the inner rear portion of the punching accommodating member 40.

As shown in FIGS. 1 to 3, the lid-side engaging member 30 is fixedly attached to the back surface side of the plate-shaped installation portion 50 provided on the open side of the lid main body 20. The plate-shaped installation portion 50 is a member that is erected between a plurality of main members 23, 23 of the lid main body 20 and firmly fixes the lid main body 20 and the lid side engaging member 30. By fixing the lid-side engaging member 30 to the plate-shaped installation portion 50, it becomes easy to grip the handle portion 35 of the lid-side engaging member 30 and lift the lid main body 20 in the opening direction.

In the lid-side engaging member 30, when the punching member 31 protrudes, the punching member 31 is engaged with the frame-side locking portion 15 of the receiving frame 10 to make the lid body 20 unopenable (see FIG. 2A). By retracting the handle portion 35, the punching member 31 is embedded in the open side end plate member 22a side, the engagement state with the frame side locking portion 15 is released, and the lid main body 20 can be opened (FIG. 2). (B)).

Here, the opening / closing operation of the opening / closing groove lid 1 of the present invention will be described in detail with reference to FIGS. 2 and 3. First, FIG. 2A shows a closed state of the lid main body 20. In the closed state, the lid main body 20 is placed on the receiving frame 10, and the punching member 31 protruding from the open side end plate member 22a of the lid main body 20 is projected inside the open side end wall portion 12a of the receiving frame 10. It is engaged with the lower surface side of the frame side locking portion 15 to prevent the lid body 20 from rotating in the opening direction. Therefore, the lid main body 20 placed on the receiving frame 10 is in a closed state in which the lid main body 20 cannot be opened, and it is possible to effectively prevent the lid main body 20 from jumping up. Further, in the opening / closing groove lid 1, the punching member 31 is always urged by the urging member S in the protruding direction and held at the protruding position, so that the frame-side locking portion 15 and the punching member 31 are engaged with each other. It will not be released carelessly and can be kept closed.

Next, when the lid main body 20 is opened, the pulling member 31 pulls the handle portion 35 in the retracting direction from the closed state as shown in FIG. It is retracted against the above and embedded in the open side end plate member 22a side. As a result, the engagement state between the frame-side locking portion 15 and the punching member 31 is released, and the lid main body 20 is in an openable state, that is, the lid main body 20 is merely placed on the receiving frame 10.

As shown in FIG. 2C, the grip portion 36 of the handle portion 35 is gripped and lifted upward (opening direction) from the openable state, so that the lid main body 20 uses the rotation shaft portion 25 as a rotation axis. It is rotated and becomes an open state. At this time, as shown in FIG. 4, since the lid body 20 is urged in the opening direction by the opening assisting member 27 of the rotating shaft portion 25, the load in the closing direction of the lid body 20 is reduced and the lid body 20 is opened. It becomes easier to lift in the direction. Further, since the lid side engaging member 30 is fixed to the back surface side of the plate-shaped installation portion 50, the stability when the handle portion 35 is lifted in the opening direction is improved, and the lid body 20 can be easily opened. ..

Subsequently, when the lid main body 20 is closed, the lid main body 20 is rotated in the closing direction with the rotation shaft portion 25 as the rotation axis from the open state of the lid main body 20 shown in FIG. 3 (a). In this open state, as shown in the figure, the punching member 31 may be projected from the open side end plate member 22a by the urging force of the urging member S and held at the protruding position.

When the lid body 20 is rotated in the closing direction, as shown in FIG. 3 (b), the lid body 20 is pierced on the upper side of the frame-side locking portion 15 projecting inside the open-side end wall portion 12a of the receiving frame 10. The push-in portion 32 formed at the tip of the member 31 is brought into contact with the push-in portion 32. At that time, since the load in the closing direction acts due to the weight of the lid main body 20, the punching member 31 is operated so as to be pushed in the backward direction against the urging force of the urging member S. The rotation of the lid body 20 in the closing direction is continued with the operation of the punching member 31 in the retracting direction.

Then, when the tip of the punching member 31 is pushed in until it is on the rear side of the frame-side locking portion 15, the contact between the frame-side locking portion 15 and the pushing portion 32 of the punching member 31 is released, and FIG. 3 (c) ), The lid body 20 is placed on the receiving frame 10. At this time, the punching member 31 pushed in the retracting direction is projected from the open side end plate member 22a by the urging force of the urging member S, held at the protruding position, and engaged with the frame side locking portion 15. .. That is, the punching member 31 is operated so as to get over the frame-side locking portion 15 as the lid main body 20 rotates in the closing direction. Therefore, in the lid main body 20, the punching member 31 can be automatically engaged with the frame-side locking portion 15 at the time of the closing operation.

As described above, in the opening / closing groove lid 1 of the present invention, the frame side locking portion 15 is formed on the receiving frame 10, and the lid side engagement having the punching member 31 and the handle portion 35 on the open side of the lid main body 20. The member 30 is provided, and the lid main body 20 can be opened only by pulling and lifting the handle portion 35 of the lid-side engaging member 30 in the retracting direction. Further, when the lid main body 20 is closed, the squeeze member 31 is always urged in the protruding direction by the urging member S, and the push-in portion 32 is formed on the tip end side of the squeeze member 31, so that the lid main body is formed. By simply rotating 20 in the closing direction, the punching member 31 can be automatically engaged with the frame-side locking portion 15 to maintain a closed state that cannot be opened. Therefore, while the structure is simplified as compared with the conventional case, it is possible to effectively prevent the flip-up, the operability is improved, and the opening / closing operation can be easily performed.

The opening / closing groove lid of the present invention is not limited to the above-described embodiment, and can be implemented by appropriately modifying a part of the configuration without departing from the spirit of the invention. For example, in the above-described embodiment, the weaving member of the lid-side engaging member is always urged by the urging member in the protruding direction, but it is also possible to configure the urging member not to be attached.

The structure and the like of the lid-side engaging member to which the urging member is not mounted are not particularly limited as long as it is possible to maintain the engaged state between the punching member and the frame-side locking portion when the lid body is closed. .. For example, like the lid-side engaging member 30A shown in FIG. 5, it is preferable to have a punching holding portion 41 for holding the punching member 31A at a protruding position. In FIG. 5, the same reference numerals as those in the above-described embodiment represent the same configuration, and the description thereof will be omitted.

In the lid-side engaging member 30A, a branch portion 33 projecting outward is formed on the substantially cylindrical punching member 31A, and the punching member is formed on the surface of the substantially cylindrical punching housing member 40A for accommodating the punching member 31A so as to be axially rotatable. A hollow holding portion 41 is formed of a through groove in which the branch portion 33 of 31A is slidable. The punching holding portion 41 has an advancing / retreating groove portion 42 extending in the advancing / retreating direction of the punching member 31A, and a holding groove portion 43 connected to the advancing / retreating groove portion 42 on the forward side end portion in the orthogonal direction thereof.

The lid-side engaging member 30A shown in FIG. 5A is a state when the punching member 31A is retracted. When the punching member 31A is retracted, the branch portion 33 is in contact with the retracting side end portion of the advancing / retreating groove portion 42 of the punching holding portion 41, and the movement in the retracting direction is restricted. Next, as shown in FIG. 5B, by pushing the handle portion 35 in the forward direction, the branch portion 33 of the punching member 31A slides in the advancing / retreating groove portion 42 in the forward direction, and the punching member 31A Is projected. At that time, the branch portion 33 comes into contact with the forward end of the advance / retreat groove portion 42 of the punching holding portion 41, so that the movement in the forward direction is restricted and the protrusion of the punching member 31A is stopped.

Subsequently, as shown in FIG. 5 (c), by performing an operation of axially rotating the handle portion 35 in the direction of the holding groove portion 43 of the punching holding portion 41, the punching member 31A is axially rotated together with the branch portion 33 to form a branch. The portion 33 is engaged with the holding groove portion 43. As a result, the movement of the punching member 31A in the advancing / retreating direction in the protruding state is restricted, so that the punching member 31A can be appropriately held at the protruding position. Therefore, it is possible to avoid inadvertent disengagement between the frame-side locking portion and the punching member.

Therefore, in the closing operation by the lid side engaging member 30A, the handle portion 35 is retracted when the lid body is opened, and the lid body is placed on the receiving frame with the punching member 31A retracted (embedded), and the handle portion is placed. After pushing the 35 in the forward direction to project the punching member 31A, the punching member 31A is engaged with the frame side locking portion by engaging the branch portion 33 with the holding groove portion 43 by operating the shaft rotation. Can be held. Further, in the opening operation by the lid side engaging member 30A, the handle portion 35 is axially rotated to disengage the engagement between the branch portion 33 and the holding groove portion 43, and then the pulling operation is performed in the retracting direction to obtain the punching member 31A. The engagement state with the frame-side locking portion can be released. Therefore, the opening / closing operation of the lid body can be easily performed.

As described above, the opening / closing groove lid of the present invention has a simplified structure, and can effectively prevent flipping up and perform a simple opening / closing operation. Therefore, it is extremely promising as an alternative to the conventional opening / closing groove lid.

1 Opening and closing groove lid 10 Receiving frame 11 Frame body 12 End wall part 12a Open side end wall part 13 Side wall part 14 Lid mounting part 15 Frame side locking part 16 Bearing part 20 Lid body 21 Side plate member 22 End plate member 22a Open side End plate member 22b Opening side End plate member opening 23 Main member 24 Reinforcing member 25 Rotating shaft part 25a Shaft fixing member 26 Shaft rod 27 Opening auxiliary member 27a, 27b Spring leg part 28 Spring engagement part 30, 30A Lid side Engagement member 31, 31A Spring member 32 Push-in part 33 Branch part 35 Handle part 36 Grip part 37 Rod part 40, 40A Spring accommodation member 41 Spring holding part 42 Advance / retreat groove part 43 Holding groove part 50 Plate-shaped installation part S urging member

Claims (5)

A groove lid in which the lid body is pivotally supported on one end side of the receiving frame so that it can be opened and closed.
On the open side of the lid body, there is a punching member that protrudes or is embedded from the opening side end plate member of the lid body, and a handle portion that is connected to the punching member and enables opening and closing operation of the lid body. A lid-side engaging member is provided,
When the punching member protrudes, the punching member is engaged with the frame-side locking portion projecting inside the opening-side end wall portion of the receiving frame, making the lid body unopenable and retracting the handle portion. The opening / closing groove lid is characterized in that the punching member is embedded in the opening side end plate member side, the engagement state with the frame side locking portion is released, and the lid main body can be opened. The groove lid for opening and closing according to claim 1, wherein the lid-side engaging member has an urging member that constantly urges the punching member in a protruding direction. The groove lid for opening and closing according to claim 2, wherein a pushing portion made of a slope or a curved surface is formed on the lower surface side of the tip of the punching member. The opening / closing groove lid according to claim 1, wherein the lid-side engaging member has a punching holding portion for holding the punching member at a protruding position. The opening / closing groove lid according to any one of claims 1 to 4, wherein the lid-side engaging member is fixedly attached to the back surface side of a plate-shaped installation portion provided on the open side of the lid body.

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