JP6860443B2 - Flat hook - Google Patents

Description

The present invention relates to a flat hook, and more specifically, to a flat hook that engages with an engaged portion accommodated in a recess provided on a floor surface or a wall surface.

Conventionally, a base made of a flat metal member, a hook portion in which one end side of the base is curved in a substantially U shape in the plate thickness direction, a retaining member attached to the base so as to be tiltable, and a retaining member are provided. A flat that includes an urging member that urges the member in the direction of contacting the inner peripheral surface of the hook portion, and is configured so that the engaged portion engaged with the hook portion by the retaining member and the urging member does not come off. Hooks are known (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2015-036582

The flat hook as described above is used, for example, as a part of a wheelchair fixing device for fixing a wheelchair to a vehicle or a part of a device such as a fixing belt, and is provided on a floor surface or a wall surface of a vehicle, a loading platform, and a luggage compartment. Engage with the engaged part. Here, the engaged portion is housed in a recess provided on the floor or wall surface, and is housed in the recess when not in use, which hinders the movement of people and objects in the vehicle, the loading platform, and the luggage compartment. However, when in use, it is arranged outside the recess so that the flat hook can be engaged.

Therefore, in order to engage the flat hook with the engaged portion, it is necessary to manually arrange the engaged portion housed in the recess outside the recess. Since the engaged portion is arranged in the recess provided on the floor surface or the wall surface, dust, moisture, oil, etc. are likely to collect in the recess and become dirty. For this reason, when the engaged portion is manually placed outside the recess during use, the hand becomes dirty.

In addition, the engaged part may be arranged below the seat or between the seats in the case of a bus or the like, and in the case of a loading platform or a luggage compartment, it is arranged in a space narrowed by luggage. In some cases. In such a situation, it may be difficult to attach the flat hook to the engaged portion with the other hand while arranging the engaged portion outside the recess with one hand.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a flat hook that can be easily engaged with an engaged portion housed in a recess without using human hands. To do.

In order to solve the above problems, the present invention employs the following means.
One aspect of the present invention is a flat hook that is housed in a recess provided on the floor or wall surface when not in use and engages with an engaged portion arranged outside the recess when in use. A base portion made of a flat metal member, a hook portion formed by bending one end side of the base portion in a substantially U shape in the plate thickness direction of the metal member, and engaging with the engaged portion, and the base portion. A retaining member that is tiltably attached, an urging member that urges the retaining member to come into contact with the inner peripheral surface of the hook portion, and a hooking claw portion that protrudes from the tip of the hook portion. The hook portion extends from the extending direction of the tip end of the hook portion toward the direction away from the base portion, and the range of at least 5 mm from the tip end of the hook portion is the hook. It has a width dimension of 1/2 or less with respect to the width dimension of the part.

In this embodiment, the hooking claw portion protruding from the tip of the hook portion extends in a direction away from the base portion rather than the extending direction of the tip of the hook portion, so that the tip of the hooking claw portion is inside the recess. It is easy to reach the position between the engaged portion housed in the recess and the bottom surface of the recess. Further, since the range of at least 5 mm from the tip of the hooking claw portion has a width dimension of 1/2 or less with respect to the width dimension of the hook portion, the tip of the hooking claw portion is connected to the engaged portion and the bottom surface of the recess. Easy to insert between. Since the hooking claw part protrudes from the tip of the hook part, by inserting the hooking claw part between the engaged part and the bottom surface of the recess, the engaged part can be hooked without using human hands. It is possible to easily guide the inside of the department.

That is, in a preferred embodiment, the hooking claw portion is inserted between the engaged portion housed in the recess and the bottom surface of the recess, and in that state, the hooking claw portion is engaged. When it is moved in the direction of the joint portion, the engaged portion is guided along the upper surface of the hooking claw to a position where it comes into contact with the hook portion and the retaining member.

In the above aspect, it is preferable that the hooking claw portion is made of the flat metal member and is integrally formed with the hook portion.
With this configuration, the base portion, the hook portion, and the hooking claw portion can be integrally formed by punching and bending the metal flat plate, and the engaged portion can be smoothly formed into the hook portion from the upper surface of the hooking claw portion. It is also advantageous for guiding to.

In the above embodiment, the engaged portion is made of a wire rod or a cylindrical material, and the recess has a groove formed along the engaged portion, and the groove is a part of a few mm or ten in the longitudinal direction thereof. It is preferable that the width of the groove is wide in the range of several mm.

Such a wide portion in the range of several mm to a dozen mm is useful for facilitating the human finger to easily reach between the engaged portion and the bottom surface of the recess. The hook part of the flat hook often has a width dimension of 20 mm or more, but since the tip side of the hooking claw part has a width dimension of 1/2 or less with respect to the hook part, the tip of the hooking claw part has a width dimension. Like a human finger, it is easy to reach between the engaged part and the bottom surface of the recess.

According to the present invention, the flat hook can be easily engaged with the engaged portion housed in the recess without using human hands.

It is a front view of the wheelchair fixing device using the flat hook which concerns on one Embodiment of this invention. It is a top view of the wheelchair fixing device using the flat hook of this embodiment. It is a rear view of the flat hook of this embodiment. It is a bottom view of the flat hook of this embodiment. It is a figure which shows the use state of the flat hook of this embodiment. It is a figure which shows the use state of the flat hook of this embodiment. It is a figure which shows the use state of the flat hook of this embodiment. It is a figure which shows the use state of the flat hook of this embodiment. It is a front view of the flat hook of the 1st modification of this embodiment. It is a bottom view of the flat hook of the 1st modification of this embodiment. It is a front view of the flat hook of the 2nd modification of this embodiment. It is a front view of the flat hook of the 3rd modification of this embodiment. It is a rear view of the flat hook of the 3rd modification of this embodiment. It is a right side view of the flat hook of the 3rd modification of this embodiment. It is a left side view of the flat hook of the 3rd modification of this embodiment. It is a top view of the flat hook of the 3rd modification of this embodiment. It is a bottom view of the flat hook of the 3rd modification of this embodiment. It is a perspective view seen from the bottom surface side of the flat hook of the 3rd modification of this embodiment. It is a perspective view seen from the left side surface side of the flat hook of the 3rd modification of this embodiment. It is a reference figure which shows the use state of the flat hook of the 3rd modification of this embodiment.

A flat hook according to an embodiment of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 to 5, the flat hook 10 has a base portion 11 made of a flat metal member and one end side of the flat metal member bent in a substantially U shape in the plate thickness direction. A hook portion 12 including a hook portion 12, a retaining member 13 attached to the base portion 11 so as to be tiltable, an urging member 14 for urging the retaining member 13 in a direction of contacting the inner peripheral surface of the hook portion 12, and a hook portion 12 It has a hooking claw portion 15 protruding from the tip of the hook. Hereinafter, the direction corresponding to the longitudinal direction of the base 11 is referred to as the longitudinal direction of the flat hook 10, and the directions orthogonal to the longitudinal direction of the base 11 and the plate thickness direction are for the flat hook 10, the base 11, the hook portion 12, and the hook. It is referred to as the width direction of the claw portion 15.

In one example, the base portion 11, the hook portion 12, and the hooking claw portion 15 are integrally formed by punching and bending a metal flat plate. A hook portion 12 is formed on one end side of the base portion 11 in the longitudinal direction, and a mounting hole 11a is formed on the other end side of the base portion 11 in the longitudinal direction. As shown in FIG. 1, the mounting hole 11a is used to rotatably connect the base portion 11 to the stay 22a fixed to the retractor 20 via the fastening member 40 around the central axis CL of the fastening member 40.

As shown in FIGS. 1 and 2, the retractor 20 is provided inside a retractor belt 21 to which a hook 21a fixed to a wheelchair is attached at one end, a retractor main body 22 to which a stay 22a is fixed, and a retractor main body 22. A winding core (not shown) for winding the retractor belt 21 from the other end side, an urging mechanism (not shown) for urging the winding core in the belt winding direction, and a side surface of the retractor main body 22 are provided. It has a handle 23 for manually rotating the winding core in the belt winding direction.

Further, the retractor 20 is provided in the retractor main body 22, and a ratchet mechanism or the like allows the winding core to rotate in the belt winding direction and regulates the rotation in the belt discharge direction, whereby tension is applied to the retractor belt 21. It has a rotation restricting mechanism (not shown) that maintains a state in which the ratchet is applied, and a release lever 24 that projects from the back surface side of the retractor main body 22 and releases the rotation restriction of the winding core when pushed down.

Retaining support portions 11b are provided on both sides of the base portion 11 in the width direction. Each retaining support portion 11b is formed by punching out protruding pieces provided on both sides of the base portion 11 in the width direction in the direction of the plate thickness of the base portion 11. A support hole (not shown) is formed in each retaining support portion 11b, and the shaft 11c is attached to the base portion 11 so as to insert the support hole and one end side of the retaining member 13 so that the retaining member 13 Is supported so that it can be tilted.

The urging member 14 comprises, for example, a torsion spring mounted around a shaft 11c. One end of the torsion spring is in contact with the base 11, and the other end of the torsion spring is in contact with the retaining member 13.

Since the hook portion 12 is formed of the same metal flat plate as the base portion 11 and is bent, the hook portion 12 has a plate thickness dimension equal to or slightly smaller than that of the base portion 11. As shown in FIG. 3, the extending direction line E1 at the tip of the hook portion 12 forms a small angle α of, for example, 15 ° or less with the extending direction line E0 of the base 11, and the tip is on the other end side of the base 11. Extends towards.

Since the hooking claw portion 15 is formed from the same metal flat plate as the base portion 11 and is slightly bent, it has a plate thickness dimension equal to or slightly smaller than that of the base portion 11. As shown in FIG. 3, the extending direction line E2 of the hooking claw portion 15 forms an angle β of 20 ° or more with the extending direction line E1 of the tip of the hook portion 12. The angle β is preferably 25 ° or more as shown in FIG.
As shown in FIG. 4, the width dimension W2 of the hooking claw portion 15 may be 1/2 or less of the width dimension W1 of the hook portion 12, but the width dimension of the tip of the index finger or the middle finger of a person is taken into consideration. It is more preferably 12 mm or less.

The retractor 20 with the flat hook 10 configured as described above functions as a wheelchair fixing device for fixing the wheelchair to the floor surface of the vehicle. Specifically, as shown in FIGS. 1 and 2, the flat hook 10 is engaged with the engaged portion 111 provided on the floor surface of the vehicle, and the hook 21a of the retractor 20 is attached to the frame of the wheelchair or the like. In this state, adjustment is performed so that a predetermined tension is applied to the retractor belt 21. As a result, the wheelchair can be connected to the engaged portion 111.

At this time, the flat hook 10 is attached to the engaged portion 111 so that the tip of the hook portion 12 is arranged below the base portion 11. This is because the hook portion 12 of the flat hook 10 is made of a flat metal member, and both ends of the hook portion 12 in the width direction are engaged with the engaged portion 111 in the mounted state, and the length of the hook portion 12 such as the base portion 11 is long. This is because the rotation around the axis is regulated by the engagement of both ends of the hook portion 12 in the width direction. Further, when the retractor belt 21 is loose, both ends in the width direction of the hook portion 12 and the tip of the hooking claw portion 15 come into contact with the floor surface side, and the three points come into contact with the floor surface to stabilize. This is because the tip of the hook portion 12 is arranged below the base portion 11.

Further, since the other end side of the base portion 11 is rotatably connected to the retractor main body 22 around the central axis CL of the fastening member 40, the posture of the flat hook 10 is stabilized as described above, so that the retractor main body 22 The posture of the retractor is also stable, and the retractor main body 22 can be easily operated.

Here, as shown in FIGS. 5 to 8, the engaged portion 111 to which the flat hook 10 is attached has a substantially U-shape attached to the base member 120 of the floor hook 100 fixed to the floor surface so as to be tiltable. It is a part of the fixed member 110 of. The fixed member 110 is made of a metal wire, and has an engaged portion 111 having a length of several tens of mm and formed in a substantially linear shape, and a pair of supporting portions 112 extending from both ends of the engaged portion 111. Each of the pair of support portions 112 is tiltably supported by the base member 120.

The base member 120 is formed with a recess 121 formed of a groove. The recess 121 has a shape and size that follows the fixed member 110, and when the fixed member 110 is in the downward tilting position (see FIG. 6), all or most of the fixed member 110 is contained in the recess 121. Is housed. Further, when the fixed member 110 is housed in the recess 121, for example, a large part of the space in the recess 121 is occupied by the fixed member 110, and a person, luggage, or the like may be caught in the recess 121 and fall. Be prevented.

The recess 121 is provided with a first groove 122 corresponding to the engaged portion 111 and a second groove 123 corresponding to the support portion 112. A wide portion 122a having a wide groove is formed in a range of several mm or a dozen mm, which is a part of the first groove 122 in the longitudinal direction, so that the fixed member 110 can be easily lifted by a finger. There is.

When the flat hook 10 configured in this way is engaged with the engaged portion 111 of the fixed member 110 of the floor hook 100, first, as shown in FIG. 6, the tip of the hooking claw portion 15 is first. The tip of the hooking claw portion 15 is placed in front of the gap between the engaged portion 111 and the bottom surface of the recess 121, or between the engaged portion 111 and the bottom surface of the recess 121. Place in.

In this state, when the flat hook 10 is moved in the longitudinal direction of the base portion 11 so that the hooking claw portion 15 moves in the direction of the engaged portion 111, it is engaged as shown in FIGS. 7 and 8. The portion 111 is guided along the upper surface of the hooking claw portion 15 to a position where the tip of the hook portion 12 and the retaining member 13 come into contact with each other. Further, when the flat hook 10 is moved in the same direction, the retaining member 13 moves toward the base portion 11 against the urging force of the urging member 14, and the hook portion 12 and the engaged portion 111 engage with each other.

As described above, in the present embodiment, the hooking claw portion 15 protruding from the tip of the hook portion 12 extends in the direction away from the base portion 11 rather than the extending direction of the tip of the hook portion 12, and thus is pulled. The tip of the hooking claw portion 15 can easily reach the position between the engaged portion 111 housed in the recess 121 and the bottom surface of the recess 121. Further, since the hooking claw portion 15 has a width dimension of 1/2 or less with respect to the width dimension of the hook portion 12, the tip of the hooking claw portion 15 is between the engaged portion 111 and the bottom surface of the recess 121. Easy to insert into.

Since the hooking claw portion 15 protrudes from the tip of the hook portion 12, the hooking claw portion 15 is inserted between the engaged portion 111 and the bottom surface of the recess 121 without using human hands. The engaged portion 111 can be easily guided into the hook portion 12.

Further, in the present embodiment, the hooking claw portion 15 is made of a flat metal member and is integrally formed with the hook portion 12. Therefore, the base portion 11, the hook portion 12, and the hooking claw portion 15 can be integrally formed by punching and bending the metal flat plate, and the hook portion 12 is covered from the upper surface of the hooking claw portion 15. It is also advantageous for smoothly guiding the engaging portion 111.

Further, in the present embodiment, the engaged portion 111 is made of a metal wire, and the recess 121 has a first groove 122 formed along the engaged portion 111, and the length of the first groove 122 is long. The width of the first groove 122 is formed to be wide in a range of several mm or a dozen mm in a part of the direction.
Such a wide portion 122a in the range of several mm to a dozen mm is useful for facilitating the human finger to easily reach between the engaged portion 111 and the bottom surface of the recess 121. The hook portion 12 of the flat hook 10 often has a width dimension of 20 mm or more, but since the hook portion 15 has a width dimension of 1/2 or less with respect to the hook portion 12, the hook portion 15 has a width dimension of 20 mm or more. The tip can easily reach between the engaged portion and the bottom surface of the recess, similar to a human finger.

In this embodiment, the hook portion 15 as a whole has a width dimension of 1/2 or less of that of the hook portion 12. On the other hand, as shown in FIGS. 9 and 10, the hooking claw portion 15 is placed along the extending direction line E2 forming an angle β of 20 ° or more with respect to the extending direction line E1 at the tip of the hook portion 12. It is formed so as to extend and the width dimension gradually decreases toward the tip side, and the width dimension is 1/2 or less, or the width is 12 mm or less with respect to the hook portion 12 only in the range of 5 mm or more on the tip side. It can also be a dimension.

Even in this case, since the tip of the hooking claw portion 15 can easily reach between the engaged portion 111 and the bottom surface of the recess 121, the same effect as described above can be obtained.
Although it is difficult to see the boundary between the hook portion 12 and the hooking claw portion 15 in FIG. 10, the hooking claw portion 15 has a base portion 11 rather than the extending direction of the tip of the hook portion 12, as shown in FIG. It is a part that extends in the direction away from.

Further, as shown in FIG. 11, the hooking claw portion 15 may be curved in the plate thickness direction thereof. Even in this case, the hooking claw portion 15 is a portion extending from the extending direction of the tip of the hook portion 12 toward the direction away from the base portion 11, and has the same effect as described above. In this case, the extending direction line E2 of the hooking claw portion 15 can be a line passing through the base end and the tip end of the hooking claw portion 15.

Further, in the present embodiment, the first groove 122 provided with the wide portion 122a is shown, but even if the first groove 122 is not provided with the wide portion 122a, the wide portion 122a is provided along the extending direction line E2. The tip of the hooking claw portion 15 having a width smaller than that of the extending hook portion 12 is between the engaged portion 111 and the bottom surface of the recess 121 than the tip of the hook portion 12 having no hooking claw portion 15. Since it is easy to reach the above, the same action and effect as described above can be obtained.

Further, in the present embodiment, the hooking claw portion 15 is made of a flat metal member and is integrally formed with the hook portion 12. On the other hand, it is also possible to form the hooking claw portion 15 from a separate member and fix the hooking claw portion 15 to the tip of the hook portion 12 by welding, fitting, bolt fixing, or the like.

Further, in the present embodiment, the engaged portion 111 is made of a metal wire rod, but the engaged portion 111 is made of a metal cylindrical material, and both ends of the cylindrical material are supported by the supporting portions 112. It may be configured to be.

Further, in the present embodiment, the fixed member 110 is arranged from the inside of the recess 121 to the outside of the recess 121 by tilting. On the other hand, a pair of holes are provided in the first groove 122 of the recess 121, and the pair of support portions 112 of the fixed member 110 are inserted into the pair of holes so as to be movable in the vertical direction, and the ends of the support portions 112 are inserted. May be configured so as not to come out of the hole. In this case, the second groove 123 can be omitted. Even in this case, the same function and effect as described above can be obtained by inserting the hooking claw portion 15 of the flat hook 10 between the engaged portion 111 of the fixed member 110 and the bottom surface of the recess 121.

Further, in the present embodiment, the flat hook 10 is used for the wheelchair fixing device, but the flat hook 10 may be provided at the end of a lashing member or a lifting member made of a belt, a chain or the like.

12 to 19 show the hooking claws 15 of the flat hook 10 of the present embodiment and the hooking claws 15 having a shape characteristic as the flat hook 10 by slightly changing the shapes of the tips of the hooks 12. It is represented by a solid line and other parts are represented by a broken line. 20 is an explanatory view showing a usage state of the flat hook 10 of FIGS. 12 to 19, and the flat hook 10 is arranged in a recess 121 provided on a floor surface or a wall surface when not in use, and is recessed when in use. It engages with the engaged portion 111 of the fixed member 110 arranged outside the 121.

10 Flat hook 11 Base 12 Hook 13 Retaining member 14 Biasing member 15 Hooking claw 20 Retractor 21 Retractor belt 21a Hook 22 Retractor body 22a Stay 23 Handle 24 Release lever 40 Fastening member 100 Floor hook 110 Fixed member 111 Engagement part 120 Base member 121 Recession 122 First groove 122a Wide part 123 Second groove

Claims (4)

A flat hook that is stored in a recess provided on the floor or wall surface when not in use and engages with an engaged portion arranged outside the recess when in use.
A base made of a flat metal member and
A hook portion formed by bending one end side of the base portion in a substantially U shape in the plate thickness direction of the metal member and engaging with the engaged portion, and a hook portion.
A retaining member that is tiltably attached to the base and
An urging member that urges the retaining member so as to come into contact with the inner peripheral surface of the hook portion.
A hooking claw portion protruding from the tip of the hook portion is provided.
The hook portion extends from the extending direction of the tip of the hook portion toward the direction away from the base portion, and the width dimension of the hook portion is at least 5 mm from the tip of the hook portion. A flat hook having a width dimension of 1/2 or less. The hooking claw portion is inserted between the engaged portion housed in the recess and the bottom surface of the recess, and in that state, the hooking claw portion is moved in the direction of the engaged portion. The flat hook according to claim 1, wherein the engaged portion is guided along the upper surface of the hooking claw to a position where the hook portion and the retaining member come into contact with each other when the hook portion is engaged. The flat hook according to claim 1 or 2, wherein the hooking claw portion is made of the flat metal member and is integrally formed with the hook portion. The engaged portion is made of a wire rod or a cylindrical rod.
The recess has a groove formed along the engaged portion, and the groove is formed so that the width of the groove is wide in a range of a part of a few mm or a dozen mm in the longitudinal direction thereof. The flat hook according to any one of claims 1 to 3.

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