JP2013000309A - Footwear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide footwear which can be used as high-heeled shoes and as a low-heeled shoes by switching with a simple operation and which is designed to secure stability both in the high heel state and in the low heel state.SOLUTION: The footwear 10 is configured to include: a body 11 for supporting a sole; a fixed heel 21 integrally structured at the lower rear end of the body; a movable heel 22 having a high heel ground contact part 22c and a low heel ground contact part 22d; a connecting part 23 for connecting the movable heel to the fixed heel in a manner capable of sliding and rocking forward and backward; and locking means 30 and 40 for locking the rocking of the movable heel relative to the fixed heel when the movable heel is situated at the rear position, in a state of directing the high-heel ground contact part and the low-heel ground contact part downward and which release the locking when the movable heel is situated in the front position.

Description

  The present invention relates to footwear that can be used by easily switching between high heels and low heels.

Conventionally, heel shoes, particularly high heel shoes, have been favored by many women who place importance on fashionability because they have the effect of making their style look better.
By the way, in the high heel shoes, since the foot is held in a state where the heel is lifted high, a load is applied to the foot tip in an unstable state. Therefore, it is easy to get tired when walking for a long time, and there is a risk of falling out of balance in an uneven place.
Low-heeled shoes are also more stable than high-heeled shoes because the heels are not lifted so high and are kept low. But you can walk safely.

In this way, high heel shoes are excellent in fashion, and low heel shoes are excellent in functionality.
Here, the high heel shoes and the low heel shoes cannot be used at the same time, and it is necessary to select either one of the high heel shoes or the low heel shoes depending on the destination.

  On the other hand, in recent years, footwear in which the heel height can be adjusted so that it can be used as a high heel shoe and a low heel shoe has been proposed.

For example, footwear that can be used as a high heel shoe when a part of the heel part is detachable as a separate part and the separate part is attached and as a low heel shoe when the separate part is removed is known. It has been.
Also, footwear that can be used as appropriate high heel shoes or low heel shoes by preparing a plurality of types of heel portions having different heights and attaching the heel portions of desired heights to the footwear body is known. ing.

  However, in the footwear having such a configuration, when it is desired to use both as a high heel shoe and a low heel shoe, it is necessary to always carry a detachable heel portion or a heel portion having a different height that can be exchanged. Since there is a possibility that the heel part may be lost, convenience is impaired.

  On the other hand, in the footwear in which a part of the heel portion is configured to be detachable as a separate component, the removed separate component is locked in the space between the bottom surface of the footwear body and the heel portion. However, this is disclosed in Patent Document 1.

  Further, in Patent Document 2, in a sub-assembly for incorporation into a shoe having a base constituting a footwear body and a heel that is adjustable at a first relatively low position and a second relatively high position, Disclosed is a subassembly characterized in that the heel is at least partially removable from the base and, in the detached state, the heel can rotate freely or about a pivot axis movable relative to the base. Has been.

  Further, Patent Document 3 discloses a shoe in which a part of a heel portion is rotated around a rotation axis inclined in the front-rear direction so that the height of the heel portion is changed to switch between a high heel and a low heel. Has been.

PCT / US2006 / 014322 WO2008 / 125650 A1 JP 2004-121765 A

  However, in the footwear of Patent Document 1, when used as a low heel, another part constituting a part of the heel portion is locked in a space defined between the bottom surface of the footwear body and the heel portion. In addition, it does not function as a heel with a ground contact surface, but only acts as a weight that prevents smooth walking.

Further, in the footwear using the sub-assembly of Patent Document 2, the heel acts as a ground contact surface in the high heel state or the low heel state, and since there is no part to be removed in the high heel state or the low heel state, it is necessary to carry another part. There is no risk of losing another part.
In this case, in order to change from the high heel state to the low heel state or vice versa, the heel is first pulled down and removed from the main body, and after the heel has been sufficiently pulled away from the main body, the heel corresponds to the low heel state or the high heel state. Rotate to posture and push the heel into the recess provided in the body.
Therefore, it is necessary to align the heel in a state in which the removed heel is rotated sufficiently away from the main body with respect to the concave portion of the main body, and the operation becomes complicated. Therefore, for example, in a state where the footwear is worn, it is difficult to lift one foot together with the footwear and switch to the high heel state or the low heel state.

  Furthermore, in the shoe of Patent Document 3, since the rotation axis is inclined, the weight applied to the sole of the user acts obliquely with respect to the rotation axis. Therefore, the strength of the heel portion is reduced due to the load on the rotating shaft particularly when used as a high heel.

  In view of the above, the present invention provides a footwear that can be switched between high heel and low heel by a simple operation, and that stability is ensured in both a high heel state and a low heel state. It is aimed.

  According to the present invention, the object is to provide a main body that supports the sole, a fixed heel integrally formed below the rear end of the main body, a movable heel having a high heel grounding portion and a low heel grounding portion, and a movable heel. When the movable heel is positioned in the rear position with the high heel grounding part facing down and the low heel grounding part facing down Locking means for locking the movable heel with respect to the fixed heel and releasing the locking when the movable heel is located at the front position. The movable heel faces the high heel grounding portion downward. A high heel state in which the movable heel is positioned at the rear position and locked by the locking means, a swingable state in which the movable heel is positioned at the front position and unlocked by the locking means, and the movable heel is -Achieved by footwear in which the movable heel is movable with respect to the fixed heel between the low heel state in which the heel grounding portion is located in the rear position with the heel grounding portion facing down and locked to the fixed heel by the locking means. .

  The footwear according to the present invention preferably includes locking means for preventing the movable heel from moving forward in a state where the movable heel is located at the rear position and is locked to the fixed heel by the locking means.

  In the footwear according to the present invention, preferably, the locking means includes a first locking portion for locking the movable heel in the high heel state and a second locking portion for locking the movable heel in the low heel state.

  In the footwear according to the present invention, preferably, the first locking portion is provided in a portion corresponding to the first engagement portion provided on the low heel shaft including the low heel grounding portion in the movable heel and the first engagement portion in the fixed heel. And a second engaging portion provided.

  In the footwear according to the present invention, preferably, the second locking portion is provided at a portion of the movable heel corresponding to the third engagement portion provided on the high heel shaft including the high heel grounding portion and the third engagement portion of the main body. And a fourth engaging portion.

According to the above configuration, the movable heel is connected to the fixed heel via the connection portion so as to be able to swing back and forth, and can swing at a position in front of the swing track, and the swing track can be The rocking is locked at the rear position.
Therefore, in the high heel state in which the movable heel is located at the rear position with the high heel grounding portion facing down and is rocked and locked by the locking means with respect to the fixed heel, the movable heel functions as a high heel, and the connecting portion and It is held against the fixed heel by the locking means.

Further, when the movable heel is moved forward with respect to the fixed heel from such a high heel state and reaches the front position of the peristaltic track, the rocking lock by the locking means is released. Can swing.
From this state, the user or the like swings the movable heel so that the low heel ground surface faces downward, and then moves the movable heel to a position behind the peristaltic track. As a result, the movable heel is in a low heel state in which the low heel grounding portion is located downward and is rocked and locked by the locking means with respect to the fixed heel. In this low heel state, the movable heel functions as a low heel. At the same time, it is held against the fixed heel by the connecting portion and the locking means.

In this case, the movable heel is always connected to the fixed heel by the connecting portion, and is locked to the rear position by the locking means in the high heel state and the low heel state. It will be held stably.
Further, the movable heel can be easily operated because it can be switched between the high heel state and the low heel state only by swinging back and forth and swinging back and forth. Accordingly, it is possible to easily switch to a high heel state or a low heel state by lifting one foot together with the footwear while wearing the footwear.

  If the movable heel is located at the rear position and is locked by the locking means with respect to the fixed heel, the locking means prevents the movable heel from moving forward. However, since the movable heel is prevented from moving forward, for example, even when an external force in the same direction as the swing of landing, kicking, etc. in use acts on the movable heel 22, the movable heel is surely brought into a high heel state or a low heel state. Retained.

Thus, according to the present invention, it is possible to provide a footwear that can be switched between a high heel state and a low heel state by a simple operation, and that stability is ensured in both a high heel state and a low heel state. Can do.

1 is a schematic perspective view showing the overall configuration of an embodiment of footwear according to the present invention. It is a fragmentary perspective view which shows the structure of the heel part in the footwear of FIG. It is a perspective view which shows the structure of the fixed heel in the heel part of FIG. It is a figure which shows the low heel grounding surface of the movable heel in the heel part of FIG. FIG. 3 is a partial cross-sectional view illustrating a configuration of a ball lock in a heel portion of FIG. 2. FIG. 6 is an enlarged vertical sectional view of a main part of the ball lock of FIG. 5, (A) shows a locked state at a front position or a rear position, and (B) shows an unlocked state between a front position and a rear position. FIG. 3 is an enlarged perspective view showing a configuration of a lock means for a high heel state provided on a movable heel in the heel portion of FIG. 2. FIG. 8 is a partially enlarged longitudinal sectional view showing the locking means of FIG. 7. FIG. 3 is a partially enlarged perspective view seen from obliquely below showing a configuration of a locking portion for a low heel state provided on a movable heel in the heel portion of FIG. It is (A) expanded sectional view and (B) cross-sectional view which show the structure of the latching means in the latching | locking part of FIG. It is a fragmentary sectional view which shows the principal part of the footwear of FIG. 1 in a high heel state. It is a fragmentary sectional view which shows the principal part of the footwear of FIG. 1 in the rocking | fluctuation possible state. FIG. 2 is a partial cross-sectional view showing a main part of the footwear of FIG. 1 showing a state in the middle of swinging for switching to a low heel state. FIG. 2 is a partial cross-sectional view showing a main part of the footwear of FIG. 1 showing a state after the end of swinging for switching to a low heel state. It is a fragmentary sectional view which shows the principal part of the footwear of FIG. 1 in a low heel state. It is a schematic perspective view which shows the whole structure of the footwear of FIG. 1 in a low heel state.

1 to 10 show a configuration of an embodiment of footwear to which the present invention is applied.
As shown in FIG. 1, footwear 10 is a shoe for women, and includes a main body 11 that constitutes a shoe sole, a flexible upper portion 12 that stands up from the periphery of the main body 11, and a heel. Part 20.
Here, the main body 11 and the upper portion 12 have a configuration similar to a conventionally known women's shoe, but it is necessary to have flexibility to cope with high heels and low heels.

  As shown in FIG. 2, the heel portion 20 includes a fixed heel 21, a movable heel 22, and a connecting portion 23 that connects the movable heel 22 to the fixed heel 21 so that it can swing back and forth and swing back and forth. The movable heel 22 includes a first locking portion 30 that locks the movable heel 22 with the fixed heel 21 in a high heel state, and a second locking portion 40 that locks the movable heel 22 in a low heel state.

The fixed heel 21 is made of, for example, plastic resin, and is integrally attached to the lower surface of the rear end of the main body 11 described above. The fixed heel 21 may be integrally formed with the main body 11 of the footwear 10.
As shown in FIG. 3, the fixed heel 21 includes a recess 21 a that is open on the front side and the lower side in order to receive the movable heel 22.
In FIGS. 2 and 3, the fixed heel 21 is omitted from the upper portion defining the upper wall surface of the recess 21a in order to make the structure in the recess 21a easier to see. Furthermore, as shown in FIG. 11, the upper portion of the fixed heel 21 extends forward to the vicinity of the center along the lower surface of the main body 11 of the footwear 10.

The movable heel 22 is made of, for example, plastic resin, and includes a receiving portion 22a received in the recess 21a of the fixed heel 21, and a high heel shaft extending downward from the receiving portion 22a in the high heel state shown in FIG. The extended portion 22b.
Further, the movable heel 22 includes a high heel grounding surface 22c on the end surface (lower surface in the high heel state) of the extension 22b, and swings forward and is folded along the bottom surface of the main body 11 to receive the receiving portion in the low heel state. A lower heel contact surface 22d is provided on the lower surface of 22a (the rear surface in the high heel state). Thereby, the movable heel 22 constitutes a low heel axis extending from the upper surface of the receiving portion 22a to the low heel ground contact surface 22d in the low heel state.

Both sides of the receiving portion 22a are supported by a connecting portion 23 described later so that the receiving portion 22a can swing back and forth and swing back and forth within the recess 21a.
Here, as shown in FIG. 2, in the movable heel 22, the corner between the front surface 22e and the upper surface 22f in the high heel state does not interfere with the upper wall surface of the recessed portion 21a of the fixed heel 21 when the front and rear rocks. Further, it is formed in a cylindrical shape as a cylindrical surface 22g centering on a swing axis X described later.

The connecting portion 23 is provided with peristaltic grooves 24 and 25 extending substantially in parallel with the bottom surface of the main body 11 in the front-rear direction provided in the approximate center of the side wall surfaces 21b and 21c that define the concave portion 21a of the fixed heel from both sides. The ball locks 26 and 27 (see FIG. 5) are provided on both side surfaces of the receiving portion 22a of the movable heel 22 so as to face the peristaltic grooves 24 and 25.
As shown in FIG. 3, the front and rear end portions of the peristaltic grooves 24, 25 are deeply formed, and lock recesses 24a, 24b, 25a, 25b are formed, respectively.

  Further, as shown in FIG. 5, the ball locks 26 and 27 are axially arranged in the holes 26a and 27a formed substantially perpendicular to both side surfaces of the receiving portion 22a of the movable heel 22, respectively (in the horizontal direction in FIG. ) And movably accommodated balls 26b, 27b, and springs 26c, 27c for urging the balls 26b, 27b outward in the axial direction, respectively. Here, the holes 26a and 27a project inwardly at the peripheral edges of the openings to prevent the balls 26b and 27b from falling out of the holes 26a and 27a.

  Thereby, the ball locks 26 and 27 are engaged in the corresponding peristaltic grooves 24 and 25, and the balls 26b and 27b are locked at the front and rear ends of the peristaltic grooves 24 and 25 as shown in FIG. By engaging deeply with the tension of the springs 26 c and 27 c at the recesses 24 a and 24 b or 25 a and 25 b, the balls 26 b and 27 b are locked at the front and rear ends of the peristaltic grooves 24 and 25, and the movable heel 22 is fixed to the fixed heel 21. On the other hand, it is locked at the front and rear ends of the front / rear swing.

  Further, when the movable heel 22 is pushed in the front-rear direction, the balls 26b and 27b are pushed into the holes 26a and 27a against the tension of the springs 26c and 27c, and the balls 26b and 27b are correspondingly locked. Retreat from the recesses 24a, 24b or 25a, 25b. As a result, as shown in FIG. 6B, the balls 26 b and 27 b move in the peristaltic grooves 24 and 25 along the longitudinal direction, so that the movable heel 22 can move back and forth with respect to the fixed heel 21. Can move.

Here, as shown in FIG. 2, when the balls 26b and 27b are engaged in the lock recesses 24a and 25a at the front ends of the peristaltic grooves 24 and 25, the movable heel 22 is engaged with the balls 26b and 27b. The movable heel 22 can swing in the front-rear direction with respect to the fixed heel 21 with the stop position, that is, the straight line connecting the lock recesses 24a and 25a as the swing axis X, and is hereinafter referred to as a swingable state.
On the other hand, in a state where the balls 26b and 27b are engaged in the lock recesses 24b and 25b at the rear ends of the peristaltic grooves 24 and 25, the movable heel 22 is, as will be described later, The swinging of the first locking portion 30 or the second locking portion 40 is locked.

The first locking portions 30 are provided on both side surfaces of the receiving portion 22a of the movable heel 22, and are formed in a pair of protrusions formed so as to extend in the front-rear direction (substantially parallel to the bottom surface of the main body 11) in a high heel state. A pair of engaging grooves 32a and 32b extending in the front-rear direction formed on the side walls 21b and 21c corresponding to the portions 31a and 31b and defining the recess 21a of the fixed heel 21, and further shown in FIG. A pair of engaging recesses 33a and 33b formed in the high heel state from the low heel ground surface 22d of the movable heel 22 in the front-rear direction as described above, and correspondingly forward from the rear wall 21d of the recess 21a of the fixed heel 21 It is comprised from a pair of engaging protrusion 34a, 34b which protrudes toward.
As shown in FIG. 4, the engagement recesses 33 a and 33 b are formed in an inverted L shape when viewed from the rear in a high heel state. Thereby, the load applied from the main body 11 to the fixed heel 21 during use is reliably transmitted to the movable heel 22, and the fixed heel 21 and the main body 11 are stabilized.

Here, when the movable heel 22 is moved rearward from the swingable state shown in FIG. 2 by the connecting portion 23, the protrusions 31a and 31b enter and engage with the engaging grooves 32a and 32b. The engaging recesses 33a and 33b engage with the engaging protrusions 34a and 34b. As a result, the movable heel 22 is reliably fixed to the fixed heel 21 by the engagement between the protrusions 31a and 31b and the engagement grooves 32a and 32b, and the engagement recesses 33a and 33b and the engagement protrusions 34a and 34b. And is held so as not to swing in the front-rear direction around the swing axis X.
Further, since the movable heel 22 is clamped from both sides by the fixed heel 21, the movable heel 22 does not swing laterally with respect to the fixed heel 21. Accordingly, the fixed heel 21 is securely held against external forces in various directions applied to the extension 22b of the movable heel 22 during use.

Further, in order to prevent the movable heel 22 from swinging forward with respect to the fixed heel 21 in the high heel state, the movable heel 22 is provided with a first locking means 35.
As shown in FIGS. 7 and 8, the first locking means 35 includes a lock member 36 that can move in the up and down direction in the high heel state within the movable heel 22, and the lock member 36 that is attached upward in the high heel state. And a compression spring 37 that is energized.
The lock member 36 is made of, for example, metal, and when the movable heel 22 is urged by the tension of the operation portion 36a exposed to the front surface 22e in the high heel state of the movable heel 22 and the compression spring 37, the upper surface of the movable heel 22 is in the high heel state. The lock portion 36b protrudes upward from 22f.

When the movable heel 22 is in a high heel state, the lock portion 36b engages with an engagement hole 21e provided in the upper wall surface that defines the recess 21a of the fixed heel 21, as shown in FIG. Therefore, the movable heel 22 is prevented from swinging forward from the high heel state by the action of the first locking means 35.
On the other hand, when the operation portion 36a is moved downward in the high heel state against the tension of the compression spring 37, the lock portion 36b does not protrude from the upper surface in the high heel state of the movable heel 22, and Therefore, the movable heel 22 can move forward.

As shown in FIG. 2, the second locking means 40 includes an engagement groove 41 provided on the front surface of the extension 22b of the movable heel 22 in the high heel state, and a main body 11 of the footwear 10 as shown in FIG. And an engaging claw 42 provided adjacent to the receiving recess 11b that receives the extension 22a of the movable heel 22 in a low heel state provided near the center of the bottom surface of the moving heel 22.
Here, the receiving recess 11b is formed so as not to interfere with the movable heel 22 and to change the shape of the upper surface of the main body 11 when the movable heel 22 swings in the front-rear direction.
In the illustrated case, the engaging claw 42 is formed in a portion extending forward of the fixed heel 21, but is not limited thereto, and may be formed on the bottom surface of the main body 11 constituting the footwear 10.

The engagement groove 41 is formed obliquely from the surface of the extension 22b of the movable heel 22 toward the high heel ground contact surface 22c side.
Further, the engaging claw 42 is formed so as to protrude obliquely forward from the bottom surface of the receiving recess 11 b of the main body 11.

  Thus, when the movable heel 22 swings in the front-rear direction about the swing axis X, the movable heel 22 enters the receiving recess 11b of the main body 11 and swings to the low heel state. When the movable heel 22 is moved rearward from this state, the engaging claw 42 is fitted into the engaging groove 41, so that the movable heel 22 is locked to the main body 11.

Here, in order to prevent the movable heel 22 from swinging downward relative to the fixed heel 21 in the low heel state, the movable heel 22 is provided with a second locking means 43.
As shown in FIGS. 9 and 10, the second locking means 43 is a locking member 44 that is movable in the lateral direction in the peristaltic hole 11 c provided in the main body 11 on one side of the receiving recess 11 b of the main body 11. It is formed as.

The lock means 44 is made of, for example, metal, and includes an operation portion 44a exposed in a cutout hole 11d provided in the main body 11 of the footwear 10, and a lock portion 44b that can protrude into the receiving recess 11b. Yes.
The lock portion 44b can move from the lock position protruding into the receiving recess 11b to the retracted position retracted from the receiving recess 11b by moving the operation portion 44a in the lateral direction, and FIG. As shown in A), the projection 45 provided on the upper wall surface of the peristaltic hole 11c is locked at the locking position based on the frictional force.
Thereby, in the low heel state of the movable heel 22, the lock portion 44b moves to the lock position, protrudes into the receiving recess 11b, and comes into contact with the high heel ground contact surface 22c which is the end surface of the extension portion 22b of the movable heel 22. The movable heel 22 is locked in the low heel state by the second locking means 44.

  The footwear 10 according to the present invention is configured as described above. In the high heel state, as shown in FIG. 11, the balls 26 b and 27 b constituting the ball locks 26 and 27 correspond to the connection portion 23, respectively. Locked in the locking recesses 24b, 25b at the rear ends of the peristaltic grooves 24, 25, and in the first locking part 30, the protrusions 31a, 31b engage with the corresponding engaging grooves 32a, 32b, and By engaging the mating recesses 33 a and 33 b with the corresponding engagement protrusions 34 a and 34 b, the movable heel 22 is firmly fixed and held in a substantially upright state with respect to the fixed heel 21.

Therefore, when the footwear 10 is used, the load applied from the sole of the user to the main body 11 of the footwear 10 is reliably transmitted from the fixed heel 21 through the movable heel 22 to the ground from the high heel contact surface 22c. As a result, the high heel shaft of the movable heel 22 is stably supported with respect to the fixed heel 21.
Here, in the locking means 35, the lock portion 36 b of the lock member 36 engages with the engagement hole 21 e of the fixed heel 21, so that the movable heel 22 does not swing forward with respect to the fixed heel 21. Yes. This prevents the movable heel 22 from inadvertently swinging forward with respect to the fixed heel 21 and swinging forward when the footwear 10 is used.

When switching from the high heel state to the low heel state, the switching is performed as follows.
That is, first, the operation portion 36a of the lock member 36 constituting the lock means 35 is moved downward as shown by an arrow A in FIG. Thereafter, as indicated by an arrow B in FIG. 11, the movable heel 22 is moved forward with respect to the fixed heel 21. At this time, the balls 26b and 27b of the ball locks 26 and 27 at the connecting portion 23 are disengaged from the lock recesses 24b and 25b at the rear ends of the peristaltic grooves 24 and 25, and the peristaltic grooves 24 and 25 are moved forward. As shown in FIG. 12, the balls 26b and 27b are locked to the lock recesses 24a and 25a at the front ends of the peristaltic grooves 24 and 25, respectively.
At this time, in the first locking part 30, the protrusions 31a and 31b are disengaged from the corresponding engaging grooves 32a and 32b, and the engaging recesses 33a and 33b are detached from the corresponding engaging protrusions 34a and 34b. As a result, the movable heel 22 becomes swingable with respect to the fixed heel 21.

  From such a swingable state, the movable heel 22 is swung forward about the swing axis X with respect to the fixed heel 21 as indicated by an arrow C in FIG. At this time, since the corner portion between the front surface 22e and the upper surface 22f in the high heel state of the movable heel 22 is formed as a cylindrical surface 22g centering on the swing axis X, as shown in FIG. As shown in FIG. 14, the extension portion 22b of the movable heel 22 is provided on the bottom surface of the main body 11 of the footwear 10, as shown in FIG. It enters into the receiving recess 11b.

Then, as indicated by an arrow D in FIG. 14, the movable heel 22 is moved backward. As a result, the ball locks 26 and 27 slide rearward along the peristaltic grooves 24 and 25, and the engaging claws 42 provided on the front lower surface of the fixed heel 21 are provided on the extension 22 b of the movable heel 22. The movable heel 22 is locked to the main body 11 via the fixed heel 21 by being inserted into the engagement groove 41 formed.
Here, when the operation portion 44 a of the lock member 44 is operated, the lock portion 44 b of the lock member 44 comes into contact with the high heel contact surface 22 c of the movable heel 22 accommodated in the receiving recess 11 b and is engaged by the protrusion 45. Stopped. Thereby, the forward movement of the extension 22b of the movable heel 22 is prevented.

  Thus, in the footwear 10, the movable heel 22 is in the low heel state, the low heel grounding surface 22d is in contact with the ground, and the heel height of the footwear 10 is set low. In this case, since the movable heel 22 is locked by the second locking means 43 so as not to swing forward with respect to the main body 11, the movable heel 22 does not inadvertently come off the low heel state. Accordingly, the low heel shaft of the movable heel 22 is stably supported with respect to the fixed heel 21.

On the other hand, when switching from the low heel state to the high heel state, the above-described procedure may be reversed.
That is, first, from the low heel state, the second locking means 43 is unlocked, and the movable heel 22 is moved forward to bring it into a swingable state. Subsequently, the movable heel 22 is swung back around the swing axis X, and the upper surface 22f of the movable heel 22 is brought into contact with the upper wall surface of the recessed portion 21a of the fixed heel 21. Thereafter, the movable heel 22 is moved rearward along the peristaltic grooves 24 and 25 to the high heel state. Here, the lock portion 36 b of the lock member 36 in the first lock means 35 provided on the movable heel 22 engages with the corresponding engagement hole 21 e based on the tension of the compression spring 37.

Thereby, in the 1st latching | locking part 30, the protrusion parts 31a and 31b of the movable heel 22 engage with the engaging grooves 32a and 32b of the fixed heel 21, and the engagement recessed parts 33a and 32b of the movable heel 22 are engaged. By engaging the engaging projections 34a and 34b of the corresponding fixed heel 21 with 33b, the movable heel 22 is firmly fixed and held in an almost upright state with respect to the fixed heel 21. By being locked by the one locking means 35, there is no possibility of rocking forward.
Therefore, for example, even if an external force in the same direction as the swing of landing, kicking, etc. in use acts on the movable heel 22, the movable heel 22 can be reliably held in a high heel state.

The present invention can be implemented in various forms without departing from the spirit of the present invention.
For example, in the above-described embodiment, the first locking means 35 and the second locking means 43 are provided to lock the movable heel 22 in the high heel state and the low heel state, respectively. These may optionally be omitted.
Further, regarding the first locking means 35 and the second locking means 43, the configuration of the locking means 35, 43 is an example, and can prevent the movable heel 22 from swinging forward. If it exists, it may be a lock means of any configuration. The first locking means is not limited to the movable heel side, and may be provided on the fixed heel side, that is, the main body side. The second locking means is not limited to the main body side, and may be provided on the movable heel side. The other locks are not limited to the shapes and locations shown in the above-described embodiments and drawings.

  In the embodiment described above, the case of women's shoes provided with the upper portion 12 has been described as the footwear 10. However, the present invention is not limited to this, and it is obvious that the present invention can be applied to various types of footwear such as sandals. is there.

  As described above, according to the present invention, the footwear can be switched between high heel and low heel by a simple operation, and the stability is ensured in both the high heel state and the low heel state. Is provided.

DESCRIPTION OF SYMBOLS 10 Footwear 11 Main body 12 Upper part 20 Heel part 21 Fixed heel 21a Recessed part 21b, 21c Side wall surface 21d Rear wall surface 21e Engagement hole 22 Movable heel 22a Receiving part 22b Extension part 22c High heel grounding surface 22d Low heel grounding surface 22e Front surface 22f Cylinder Surface 23 Connection portion 24, 25 Peristaltic groove 24a, 24b, 25a, 25b Lock recess 26, 27 Ball lock 26b, 27b Ball 26c, 27c Spring 30 First locking portion 31a, 31b Projection portion 32a, 32b Engagement Grooves 33a, 33b Engaging recesses 34a, 34b Engaging protrusion 35 First locking means 36 Locking member 36a Operation part 36b Locking part 37 Compression spring 40 Second locking part 41 Engaging groove 42 Engaging claw 42
43 Second locking means 44 Locking member 44a Operation part 44b Locking part 45 Projection

Claims (5)

A body that supports the sole,
A fixed heel integrally formed below the rear end of the main body;
A movable heel having a high heel grounding portion and a low heel grounding portion;
A connecting portion for connecting the movable heel to the fixed heel so as to be able to swing back and forth and swing back and forth;
When the movable heel is positioned at a rear position with the high heel grounding portion facing down and the low heel grounding portion facing down, the movable heel locks the swinging of the movable heel with respect to the fixed heel, and Locking means for releasing the locking when the movable heel is located at the front position;
Have
A high heel state in which the movable heel is positioned at a rear position with the high heel grounding portion facing down and locked by the locking means with respect to the fixed heel, and the locking heel is positioned at the front position. A swingable state in which the lock by the lock is released, and a low heel state in which the movable heel is positioned at a rear position with the low heel grounding portion facing down and locked to the fixed heel by the locking means. Footwear wherein the movable heel is movable relative to the fixed heel.   The footwear according to claim 1, further comprising a lock unit that prevents the movable heel from moving forward in a state where the movable heel is located at a rear position and is locked to the fixed heel by the locking unit.   The said latching means contains the 1st latching | locking part which latches the said movable heel in a high heel state, and the 2nd latching | locking part which latches the said movable heel in a low heel state. footwear.   The first locking portion includes a first engagement portion provided on a low heel shaft including the low heel grounding portion of the movable heel, and a first engagement portion provided on a portion corresponding to the first engagement portion of the fixed heel. The footwear according to claim 3, comprising two engaging portions.   The second locking portion includes a third engagement portion provided on a high heel shaft including the high heel grounding portion in the movable heel, and a fourth engagement portion provided on a portion corresponding to the third engagement portion in the main body. The footwear according to claim 3, further comprising an engaging portion.

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