JP2010255369A - Lock device for tent - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily determine a turning direction of a turning operation body, and to prevent a lock device from being damaged and a defective operation from getting anxious to be induced, in the lock device for a tent used between a column body and a beam body constituting the tent, and between outer cylinder and an inner cylinder of the column body. <P>SOLUTION: This lock device for the tent is constituted of the column body 2, a lock base 3, a lock hole 4, a lock pin 5, an elastomer 6, an operation lever 7, and a coming-off preventive holding means 8, and a turning regulation mechanism 39 of the coming-off preventive holding means 8 positions the lock pin 5 in a coming-off preventive holding position, when the turning operation body 38 is under a horizontal state, and positions the lock pin 5 in a coming-off releasing position, when the turning operation body 38 is under a vertical state. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an improvement in a tent locking device mainly used between a column body and a beam body constituting a tent or between an outer cylinder and an inner cylinder of a column body.

Conventionally, as this type of locking device, for example, those described in Patent Documents 1 to 5 are known.
The lock device is basically provided with a column body, a lock base provided in the column body so as to be able to move up and down relatively, a lock hole provided in the column body, and a lock base that is movable in the longitudinal direction. A lock pin that can have a lock position that enters the lock hole and an unlock position that exits from the lock hole, an elastic body that is provided on the lock base and urges the lock pin to the lock position at all times, and is provided to be swingable on the lock base. And an operation lever capable of operating the lock pin to the unlock position.

Thus, in such a case, if the lock body and the lock base are moved up and down relative to each other and the lock hole and the lock pin are matched, the lock pin is inserted into the lock hole by the elastic body and becomes the lock position. Relative lifting between the body and the lock base is prevented.
When the operating lever is slid against the elastic body from such a state, the lock pin comes out of the lock hole to the unlock position, and the column body and the lock base are allowed to move up and down.
However, in the conventional device, if the operation lever is erroneously operated, the column body and the lock base are allowed to move up and down, which may lead to an unexpected accident, resulting in a safety problem.

In order to solve such a problem, the present applicant has previously proposed Japanese Patent Application No. 2007-293239.
This is the addition of retaining means that can retain the lock pin in the locked position.
Specifically, when the rotating operation body of the retaining member is brought into a horizontal state, the retaining member is in a retaining release (unremovable) position, and when the operation lever is operated, the lock pin is moved to the unlocked position. Is done.
On the other hand, when the rotating operation body of the retaining member is brought into a vertical state, the retaining member is in a retaining (possible retaining) position, and the lock pin is retained in the locked position.

Utility Model Registration No. 2504766 JP-A-8-9938 JP-A-10-88949 Utility Model Registration No. 3123507 Utility Model Registration No. 3133263

Thus, in such a case, when the retaining means is operated from the retaining release position to the retaining position, the rotating operation body is moved from the horizontal state to the vertical state around the longitudinal axis (longitudinal axis of the lock pin). This can be done by turning.
However, at this time, the rotation operation body is in a horizontal state, and the operation lever is rotated (peristalized) around the horizontal axis (the horizontal axis, the axis perpendicular to the longitudinal direction of the lock pin). , I think that the rotating operation body will also rotate (perpendicular) around the horizontal axis (left-right direction axis, the axis perpendicular to the longitudinal direction of the lock pin), and in addition, operate the rotating operation body with your foot. Since there were workers, the components were sometimes damaged or malfunctioned.
The lock base lid has “ON” and “OFF” characters and “double-headed arrows” on it, but it is difficult to see from above, and this is happening. It was.

  The present invention has been devised in view of the above-mentioned problems, and has been devised to solve this problem. The problem is that the rotating direction of the rotating operation body can be easily determined, An object of the present invention is to provide a tent locking device that does not cause a malfunction.

  The lock device for a tent of the present invention is basically movable in the longitudinal direction to the column body, a lock base that can be moved up and down relative to the column body, a lock hole that is formed in the column body, and the lock base. A lock pin that can take a lock position that enters the lock hole and an unlock position that comes out of the lock hole, an elastic body that is provided on the lock base and constantly urges the lock pin to the lock position, and swings on the lock base It is composed of an operating lever that can be operated and can operate the lock pin to the unlock position, and a retaining means that can retain the lock pin in the locked position, and the retaining means can be moved in the longitudinal direction to the lock base. And a lock pin provided to be rotatable about a longitudinal axis, a rotation operating body provided on the lock pin and capable of rotating the lock pin from outside, a lock pin and a lock base. Between the lock pin and the lock base to prevent the lock pin from being removed, and a rotation restricting mechanism provided between the lock pin and the lock base. A locking device for a tent that includes a locking mechanism that prevents the lock pin from moving in the longitudinal direction when in the holding position and allows the lock pin to move in the longitudinal direction when the lock pin is in the locking release position. The rotation restricting mechanism of the holding means is such that the lock pin is in the retaining position when the rotating operation body is in the horizontal state, and the lock pin is in the retaining release position when the rotating operation body is in the vertical state. Features exist.

If the column and the lock base are moved up and down relative to each other and the lock hole and the lock pin are matched, the lock pin is inserted into the lock hole by the elastic body to enter the lock position, and the column body and the lock base are prevented from moving up and down relative to each other. Is done.
In this state, when the operation lever is slid against the elastic body, the lock pin comes out of the lock hole to the unlock position, and the column body and the lock base are allowed to move up and down.
When the rotational operation body of the retaining means is brought into a vertical state, the lock pin is brought into the retaining release position by the rotation restricting mechanism, and movement in the longitudinal direction is allowed by the retaining mechanism. Therefore, when the operation lever is operated, the lock pin is set to the unlock position, and the relative lifting and lowering of the column body and the lock base is allowed.
When the rotational operation body of the retaining means is brought into a horizontal state, the lock pin is brought into the retaining position by the rotation restricting mechanism, and the longitudinal movement is prevented by the retaining mechanism. Therefore, the lock pin is held in the locked position. For this reason, even if the operation lever is mistakenly operated and the lock pin is set to the unlock position, the lock pin is retained in the lock position by the retaining means, so that the relative elevation of the column body and the lock base is prevented. The
The rotation restricting mechanism of the retaining means is configured to place the lock pin in the retaining position when the rotating operation body is in a horizontal state and to bring the lock pin into a retaining release position when the rotating operation body is in a vertical state. Therefore, when operating the rotating operation body from the vertical state, it can be seen that the operating direction is different from that of the operating lever at a glance, and it is rotated around the longitudinal axis (longitudinal axis of the lock pin) and in the horizontal state. You can see that it is good. Therefore, there is no possibility that the rotating operation body is rotated around the same horizontal axis as the operation lever (left-right direction axis, longitudinal axis of the lock pin), and damage to components or malfunction is not induced.

  The column body includes an outer cylinder and an inner cylinder that is slidably fitted therein. The lock base is fixed to the outer cylinder, and a lock hole is provided in the inner cylinder. It is preferable that a through-hole penetrating the lock pin is provided. In this way, a locking device can be provided between the outer cylinder and the inner cylinder of the tent column.

  The rotation restricting mechanism includes a substantially oval shaped piece provided on the lock pin, and a piece provided on the lock base that can be brought into contact with the end face of the piece when the lock pin is in the retaining holding position and the retaining release position. The retaining mechanism includes a flange piece of the rotation restricting mechanism, and can be brought into contact with the flange piece when the lock pin is in the retaining position and provided with the lock base and when the lock pin is in the retaining release position. It is preferable to provide a retaining piece that avoids matching. In this way, since the piece can be shared, the structure can be simplified and the cost can be reduced and the space can be saved.

  The retaining means is provided with an operation body rotation restricting mechanism that is provided between the rotation operation body and the lock base and restricts the rotation of the rotation operation body from a horizontal state to a vertical state. preferable. If it does in this way, the operation direction of a rotation operation body can be known only by glance at this by the presence of the operation body rotation control mechanism. In addition, even if the rotating operation body is placed in a horizontal state and is stepped on with a foot to operate it, the downward movement of the rotating operation body is physically caused by the presence of the operation body rotation restricting mechanism. It is blocked, and these damages can be prevented.

  It is preferable that the retaining means is provided with a free rotation restricting mechanism that is provided between the operation lever and the lock pin and restricts the free rotation of the lock pin so that the rotation operation body maintains a vertical state. In this way, if the rotating operation body is set to the vertical state and the lock pin is set to the unlocking release position by the retaining means, this state is maintained, and the rotating operation body is inadvertently moved in the horizontal direction. There is no possibility that the lock pin will rotate and be locked. As a result, if the operation lever is operated, the lock pin can be properly set to the unlock position.

  An outer cylinder side sliding body for slidably guiding the inner cylinder is provided at the lower part of the outer cylinder, and an inner cylinder side sliding body for slidably guiding the outer cylinder is provided at the upper part of the inner cylinder. It is preferable that the lock base is detachably attached to the lower part of the outer cylinder depending on the outer cylinder side sliding body. In this way, the relative movement between the outer cylinder and the inner cylinder can be performed smoothly to prevent rattling between the outer cylinder and the inner cylinder, and at the time of mounting the lock base and the outer cylinder, Since a sliding body can be used, it is extremely reasonable.

  The operating body rotation restricting mechanism includes a rotating operation body, and a protrusion provided on the lock base and capable of engaging a part of the rotating operation body when the rotating operation body is in a horizontal state and a vertical state. Is preferred. In this way, it is only necessary to provide a protrusion on the lock base, so that the structure is simplified and the cost can be reduced.

  The free rotation restricting mechanism is formed on the fork piece having a bifurcated shape of the operation lever and the hook piece of the lock pin, and is sandwiched and fitted between the fork pieces of the operation lever when the rotation operation body is in the vertical state. It is preferable to provide an engaging portion. In this way, since it is only necessary to form the engaging portion on the hook piece of the lock pin, the structure can be simplified and the cost can be reduced.

According to the present invention, the following excellent effects can be achieved.
(1) A pillar body, a lock base, a lock hole, a lock pin, an elastic body, an operation lever, and a retaining means, and in particular, the rotation restricting mechanism of the retaining means is locked when the rotating operation body is in a horizontal state. Since the pin is in the retaining position and the lock pin is in the unlocking release position when the rotating operation body is in the vertical state, the rotation operating body is in the unlocking release position where the lock pin can be in the unlocked position. It is possible to determine that the operation direction (turning direction) is different from the operation lever at a glance with the vertical state. As a result, it is no longer necessary to step on the rotating operation body in the vertical state with the foot and rotate it about the left-right axis, thereby preventing damage to components and malfunction.
(2) When an operating body rotation restricting mechanism for restricting the rotation of the rotating operation body is provided between the rotating operation body and the lock base, it is seen at first glance depending on the existence of the operating body rotation restricting mechanism. Only the operation direction of the rotating operation body can be known. In addition, even if the rotating operation body is placed in a horizontal state and is stepped on with a foot to operate it, the downward movement of the rotating operation body is physically caused by the presence of this operation body rotation restricting mechanism. It is blocked, and these damages can be prevented.
(3) When a free rotation restricting mechanism for restricting the free rotation of the lock pin is provided between the operation lever and the lock pin, the lock pin is released from the lock by holding the rotation operation body in the vertical state. If it is in the position, this state is maintained, and there is no fear that the rotating operation body will rotate carelessly in the horizontal direction and the lock pin will be in the locked position. As a result, if the operation lever is operated, the lock pin can be properly set to the unlock position.

The disassembled perspective view which shows the locking device for tents of this invention. FIG. 6 is a vertical side view showing a state where the retaining is released and locked. FIG. 3 is a longitudinal rear view of FIG. 2. The longitudinal section front view which shows the attachment state of the outer cylinder of a pillar body, a lock base, and an outer cylinder side sliding body. The cross-sectional top view which shows the outer cylinder and inner cylinder of a pillar, and a fitting state. The same figure as FIG. 2 which shows an unlocked state. FIG. 3 is a view similar to FIG. 2 showing a retaining / locking state. FIG. 8 is a longitudinal rear view of FIG. 7. The perspective view which shows a lock pin.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded perspective view showing a tent locking device of the present invention. FIG. 2 is a longitudinal sectional side view showing an unlocking / locking state. FIG. 3 is a longitudinal rear view of FIG. FIG. 4 is a longitudinal front view showing a mounting state of the outer cylinder of the column body, the lock base, and the outer cylinder side sliding body. FIG. 5 is a cross-sectional plan view showing a fitting state between the outer cylinder and the inner cylinder of the column body. 6 is a view similar to FIG. 2 showing the unlocked state. FIG. 7 is a view similar to FIG. 2 showing the retaining / locking state. FIG. 8 is a longitudinal rear view of FIG. FIG. 9 is a perspective view showing the lock pin. In FIG. 1, the upper side is defined as the upper side, the lower side is defined as the lower side, the upper right side is defined as the front side, the lower left side is defined as the rear side, the lower right side is defined as the right side, and the upper left side is defined as the left side.

  The tent lock device 1 includes a column body 2, a lock base 3, a lock hole 4, a lock pin 5, an elastic body 6, an operation lever 7, and a retaining member 8 that constitute the main part.

The column 2 is a basic part of the tent locking device 1. In this example, the column 2 is made of metal such as aluminum that is long in the vertical direction, and is slidably fitted in the outer cylinder 9. The inner cylinder 10 is provided.
The outer tube 9 has a square tube shape with a substantially square cross section, and engaging holes 11 are formed on the left and right sides of the lower portion, and a through hole 12 communicating with the lock hole 4 is formed on the rear side. It has been drilled.
The inner cylinder 10 has a rectangular tube shape that is smaller in diameter than the outer cylinder 9 and has a substantially square cross section, and is provided with reinforcing ribs 13 having a substantially square cross section at the inner four corners.

An outer cylinder side sliding body 14 is provided at the lower part of the outer cylinder 9 and is slidably guided to guide the inner cylinder 10, and is attached to the upper part of the inner cylinder 10. An inner cylinder side sliding body 15 for slidably guiding the outer cylinder 9 is provided.
The outer cylinder side sliding body 14 is made of synthetic resin, and has four frame-shaped frame pieces 16 fitted to the lower end of the outer cylinder 9, and is erected on each side of the frame piece 16 so as to be located at the lower inner side of the outer cylinder 9. Four sliding pieces 17 that are positioned and slidably contacted with the outer surface of the inner cylinder 10, and protrusions 18 that protrude outwardly from the left and right sliding pieces 17 and engage with the engaging holes 11 of the outer cylinder 9, A through hole 19 is formed in the rear sliding piece 17 and communicates with the through hole 12 of the outer cylinder 9.
The inner cylinder side sliding body 15 is also made of a synthetic resin, and a lid piece 20 fitted to the upper end of the inner cylinder 10 is connected to the lower side of the lid piece 20 so as to be fitted inside the upper part of the inner cylinder 10. A total of eight sliding pieces 22 that protrude from the four corners of the lid piece 20 and are in sliding contact with the inner surface of the outer cylinder 9 so as not to interfere with the sliding piece 17 of the outer cylinder sliding body 14 are provided. ing.

The lock base 3 is provided on the column body 2 so as to be able to move up and down relatively. In this example, the lock base 3 is fixed to the outer cylinder 9 and is made of a synthetic resin. A body 23, a box body 24 that protrudes on the rear side of the body 23, has a substantially semicircular housing cavity formed therein, and has a rear side opened, and a lid body 25 that closes the rear side of the box body 24.
On both the left and right sides of the cylinder body 23, engagement holes 26 are formed which communicate with the engagement holes 11 of the outer cylinder 9 and engage the projections 18 of the outer cylinder side sliding body 14.
The cylindrical body 23 and the lid body 25 are formed with a guide hole 27 for guiding through the lock pin 5.
In the upper part of the box body 24, left and right insertion holes 28 that are communicated with the accommodation cavity and into which the operation lever 7 is inserted are formed.
The lid body 25 is detachably attached to the box body 24 by a fastener 29 such as a screw. The front side of the guide hole 27 is a receiver for supporting one side of the elastic body 6 having a larger diameter. A hole 30 is formed, and a character “ON” indicating a retaining state, a character “OFF” indicating a retaining release state, and a “double arrow” indicating a rotation direction are written on the rear surface. Yes.

  The lock hole 4 is provided in the column body 2. In this example, the lock hole 4 is provided in the inner cylinder 10, and an appropriate number is provided at a predetermined interval in the longitudinal direction (vertical direction) on the rear side of the inner cylinder 10. It has been drilled. Only one is shown in the drawing.

The lock pin 5 is provided on the lock base 3 so as to be movable in the longitudinal direction, and can take a lock position to enter the lock hole 4 and an unlock position to escape from the lock hole 4. In this example, a metal such as aluminum is used. It is made of a substantially cylindrical shape, and is provided in the guide hole 27 of the lock base 3 so as to be movable in the front-rear direction and rotatable about the front-rear axis.
A recess is formed on the front side of the lock pin 5, and a cylindrical sliding contact piece 31 made of synthetic resin is fitted to the front side of the lock pin 5 except for the front side. In the middle of the lock pin 5, an oval-shaped flange 32 is formed. At the rear part of the lock pin 5, both sides are cut off to form attachment pieces 33.

  The elastic body 6 is provided on the lock base 3 and constantly urges the lock pin 5 to the lock position. In this example, the elastic body 6 is a compression spring made of a metal such as spring steel. It is inserted from the rear side and is interposed between the flange 32 of the lock pin 5 and the receiving hole 30 of the lid 25 of the lock base 3 so that the lock pin 5 is always on the front side (lock hole 4 side). Energized.

The operation lever 7 is provided on the lock base 3 so as to be slidable and can operate the lock pin 5 to the unlock position. In this example, a fork piece 34 made of metal such as aluminum and having a bifurcated shape, A boss piece 35 formed by bending in the middle and an operation piece 36 made of synthetic resin and having a substantially semicircular shape integrally attached to the upper portion of the fork piece 34 are provided.
The fork piece 34 and the boss piece 35 of the operation lever 7 are inserted into the insertion hole 28 of the lock base 3. The front end of the fork piece 34 is positioned on the front side of the flange piece 32 in a state of straddling the lock pin 5, and the boss piece 35 is fixed to the lock base 3 by a left and right support shaft (bolt) 37. It can be mounted so that it can swing in the front-rear direction (rotate around the horizontal axis).

  The retaining means 8 is capable of retaining the lock pin 5 in the locked position. In this example, the retaining means 8 is provided between the lock base 3 and the lock pin 5, and the lock base 3 has a longitudinal direction (front-rear direction). , A lock pin 5 provided so as to be movable around the longitudinal axis, a turning operation body 38 provided on the lock pin 5 and capable of turning this from outside, a lock base 3 and a lock pin. Between the lock base 3 and the lock pin 5, and a rotation restricting mechanism 39 that is provided between the lock base 3 and the lock base 5. And a retaining mechanism 40 that prevents the lock pin 5 from moving in the longitudinal direction when the lock pin 5 is in the retaining position and allows the lock pin 5 to move in the longitudinal direction when the lock pin 5 is in the retaining release position. Have .

The rotating operation body 38 is made of a synthetic resin and has a substantially semicircular shape. A receiving hole is formed in the front side, and a mounting piece 33 of the lock pin 5 is inserted therein. 41 is detachably attached.
The rotation restricting mechanism 39 is provided in the flange 32 of the lock pin 5 and the box 24 of the lock base 3 so that the end face of the flange 32 is brought into contact when the lock pin 5 is in the retaining position and the retaining release position. And a contact piece 42 to be obtained.
The contact piece 42 has a substantially prismatic shape and is formed at the lower left corner of the front side in the box 24 of the lock base 3.
The retaining mechanism 40 is provided on the collar 32 of the lock pin 5 and can be brought into contact with the collar 32 when the lock pin 5 is in the retaining position, and is disposed when the lock pin 5 is in the retaining release position. 32 is provided with a retaining piece 43 that can be prevented from being engaged with 32.
The retaining piece 43 has a plate shape and projects forward from the front lower portion of the lid body 25 of the lock base 3.
As shown in FIG. 2, when the rotary operating body 38 is in a vertical state, the hook 32 of the lock pin 5 is in a horizontal state, and the lock pin 5 is brought into a retaining release position by the rotation restricting mechanism 39. From FIG. 3, when it is rotated by 90 degrees clockwise and is in a horizontal state as shown in FIG. 7, the hook 32 of the lock pin 5 is in the vertical state, and the lock pin is turned by the rotation restricting mechanism 39. 5 is set to the retaining position.

  The retaining member 8 is provided between the rotation operation body 38 and the lock base 3, and an operation body rotation restriction mechanism 44 that restricts the rotation of the rotation operation body 38 from the horizontal state to the vertical state. A free rotation restricting mechanism 45 is provided between the operation lever 7 and the lock pin 5 and restricts the free rotation of the lock pin 5 so that the rotation operation body 38 maintains a vertical state.

  The operating body rotation restricting mechanism 44 is provided on the rotating operation body 38 and the lock base 3 and a protrusion that can be partly engaged with the rotating operation body 38 when the rotating operation body 38 is in a horizontal state and a vertical state. 46. The protrusion 46 has a substantially prismatic shape and protrudes rearward from the lid body 25 of the lock base 3.

  The free rotation restricting mechanism 45 is formed on the fork piece 34 having a bifurcated shape of the operation lever 7 and the collar piece 32 of the lock pin 5, and when the rotation operation body 38 is in the vertical state, both fork pieces 34 of the operation lever 7. And an engaging portion 47 which is sandwiched and fitted therebetween. The engaging portion 47 has a square plate shape and is formed on the front side of the flange piece 32, and its corner portion is cut out in an arc shape so that the fork piece 34 is not caught when the lock pin 5 rotates.

  Thus, the bottom wall of the box 24 of the lock base 3 is formed with a plurality (two) of discharge ports 48 through which rainwater and the like that have entered the inside can be discharged to the outside.

Next, the operation will be described based on such a configuration.
The tent locking device 1 is assembled as follows.
The fork piece 34 and the boss piece 35 of the operation lever 7 are inserted into the insertion hole 28 of the lock base 3, and the boss piece 35 is slidably attached to the lock base 3 by the support shaft 37. The elastic body 6 is inserted into the latter half of the lock pin 5, and the rear side of the lock pin 5 is inserted into the guide hole 27 of the lid body 25 of the lock base 3, and then the mounting piece 33 of the lock pin 5 by the mounting tool 41. A rotating operation body 38 is attached to the. Then, the lock pin 5 is inserted into the box body 24 of the lock base 3 and is inserted into the guide hole 27 of the cylindrical body 23 of the lock base 3, and the lid body 25 of the lock base 3 is boxed by the stopper 29. 24 is fixed. Then, the fork piece 34 of the operation lever 7 is brought into contact with the front side of the collar piece 32 in a state straddling the front side of the lock pin 5.

The tent locking device 1 assembled in this way is attached to the outer cylinder 9 of the column 2 as follows.
The cylinder 23 of the lock base 3 is externally fitted to the lower part of the outer cylinder 9 of the column body 2 in a state where the operation lever 7 is operated to swing forward and the lock pin 5 is in the unlocked position. The engagement hole 11 and the engagement hole 26 of the lock base 3 are aligned with the through hole 12 of the outer cylinder 9 and the guide hole 27 of the lock base 3, respectively. When the sliding piece 17 having the projection 18 of the outer cylinder side sliding body 14 is constricted and inserted into the lower portion of the outer cylinder 9, the projection 18 of the outer cylinder side sliding body 14 is elastic of the sliding piece 17. Depending on the restoring force, it engages with the engaging hole 11 of the outer cylinder 9 and the engaging hole 26 of the lock base 3, and the through hole 12 of the outer cylinder 9 and the through hole 19 of the outer cylinder side sliding body 14 are matched to each other. Can be projected to the inside of the outer cylinder side sliding body 14 through these through holes 12 and 19.
The inner cylinder sliding body 15 is attached by inserting the insertion piece 21 into the upper part of the inner cylinder 10.
And the upper part of the inner cylinder 10 is slidably inserted into the outer cylinder 9 from below the outer cylinder 9 of the column 2.

If the inner cylinder 10 of the column 2 and the lock base 3 are moved up and down relative to each other and the lock hole 4 and the lock pin 5 are matched, the lock pin 5 is inserted into the lock hole 4 by the elastic body 6 to be in the lock position. Relative lifting between the inner cylinder 10 of the column 2 and the lock base 3 is prevented (see FIGS. 2 and 3).
When the lock hole 4 and the lock pin 5 do not match, the sliding contact piece 31 of the lock pin 5 is slidably contacted with the outer surface of the inner cylinder 10 of the column 2, so that the inner cylinder 10 is not damaged.

  From such a state, when the operation lever 7 swings forward against the elastic body 6, that is, when the operation lever 7 is rotated clockwise around the support shaft 37 in FIG. 2, the lock pin 5 is released from the lock hole 4. It slips out and is in the unlocked position, and relative elevation between the inner cylinder 10 of the column 2 and the lock base 3 is allowed (see FIG. 6).

  As shown in FIGS. 2 and 3, when the rotating operation body 38 of the retaining member 8 is in a vertical state, the hook 32 of the lock pin 5 is in a horizontal state and contacts the hook 32 of the rotation restricting mechanism 39. The lock pin 5 is brought into the retaining release position depending on the piece 42, and movement in the longitudinal direction is allowed depending on the collar piece 32 and the retaining piece 43 of the retaining mechanism 40. At this time, the lower right surface of the rotation operation body 38 of the operation body rotation restricting mechanism 44 and the projection 46 are brought into contact with each other to rotate the rotation operation body 38 (counterclockwise rotation in FIG. 3). In addition to being blocked, the fork piece 34 and the engaging portion 47 of the free rotation restricting mechanism 45 are fitted to restrict the free rotation of the lock pin 5 (clockwise rotation in FIG. 3). Therefore, when the operation lever 7 is operated, the lock pin 5 is set to the unlock position.

  As shown in FIGS. 7 and 8, when the turning operation body 38 of the retaining member 8 is turned by 90 degrees from the vertical state to the horizontal state, the hook 32 of the lock pin 5 becomes the vertical state. The lock pin 5 is brought into the retaining position by the collar piece 32 and the contact piece 42 of the rotation restricting mechanism 39, and the longitudinal movement is prevented by the collar piece 32 and the retaining piece 43 of the retaining mechanism 40. At this time, the lower right surface of the rotation operation body 38 of the operation body rotation restricting mechanism 44 and the projection 46 are brought into contact with each other to prevent rotation of the rotation operation body 38 (clockwise rotation in FIG. 8). At the same time, the fitting between the fork piece 34 and the engaging portion 47 of the free rotation restricting mechanism 45 is released. Therefore, even when the operation lever 7 is operated, the lock pin 5 is held at the lock position.

  Since the retaining means 8 is provided, even if the operation lever 7 is erroneously operated and the lock pin 5 is set to the unlocked position, the lock pin 5 is retained in the locked position by the retaining means 8. Relative lifting of the inner cylinder 10 of the column body 2 and the lock base 3 is prevented.

  The rotation restricting mechanism 39 of the retaining member 8 keeps the lock pin 5 in the retaining position when the pivoting operation body 38 is in the horizontal state, and moves the lock pin 5 in the retaining release position when the pivoting operation body 38 is in the vertical state. Therefore, when operating the rotary operation body 38 from a vertical state, it can be seen that the operation direction is different from that of the operation lever 7 at first glance, and the longitudinal axis (the longitudinal axis of the lock pin 5). ) It turns out that it is only necessary to turn it around and make it horizontal. Therefore, there is no possibility that the rotating operation body 38 is rotated around the same horizontal axis as the operation lever 7 (left-right direction axis, longitudinal axis of the lock pin 5), which may cause damage to components and malfunction. Disappear.

  The retainer holding means 8 is provided between the rotation operation body 38 and the lock base 3 and has an operation body rotation restriction mechanism 44 that restricts the rotation of the rotation operation body 38 from the horizontal state to the vertical state. Therefore, the operating direction of the rotating operation body 38 can be determined by looking at the projection 46 of the operating body rotation restricting mechanism 44 at a glance. In addition, even if the rotating operation body 38 is set in a horizontal state and is stepped on by a foot to operate it, the presence of the protrusion 46 of the operating body rotation restricting mechanism 44 causes the bottom of the rotating operation body 38 to be operated. The movement is physically blocked, and these damages can be prevented.

  The retaining means 8 includes a free rotation restricting mechanism 45 that is provided between the operation lever 7 and the lock pin 5 and restricts the free rotation of the lock pin 5 so that the rotation operation body 38 maintains a vertical state. Therefore, if the rotation operation body 38 is set in the vertical state and the lock pin 5 is set in the removal release position by the retention holding means 8, this state is maintained, and the rotation operation body 38 is inadvertently in the horizontal state. There is no possibility of the lock pin 5 being in the locked position by rotating in the direction. As a result, if the operation lever 7 is operated, the lock pin 5 can be properly set to the unlock position.

  When the rotating operation body 38 is changed from the horizontal state to the vertical state, when the fork piece 34 and the engaging portion 47 of the free rotation restricting mechanism 45 are fitted, there is an answer and a sound is produced. Even if it is not visible from the outside, it can be easily understood that the free rotation of the lock pin 5 is restricted by the free rotation restricting mechanism 45.

Since the retaining means 8 is configured using the lock pin 5, it is extremely reasonable. That is, the structure is simplified accordingly, and the cost can be reduced and the space can be saved.
The flange 32 of the lock pin 5 has a role of transmitting the operation force of the operation lever 7 to the lock pin 5, a role of receiving one of the elastic bodies 6, a rotation restricting mechanism 39 of the retaining member 8 and a retaining mechanism 40. Since it plays the role which comprises each one part of the free rotation control mechanism 45, it is very rational.
Since the lock base 3 is detachably attached to the outer cylinder 9 of the column body 2 using the outer cylinder side sliding body 14, it is extremely rational.
Since the bottom wall of the box 24 of the lock base 3 is provided with the discharge port 48, rainwater and the like that have entered the inside can be quickly discharged. As a result, rusting of the internal mechanism is prevented, and malfunction can be prevented.

In the above example, the lock base 3 is fixed to the outer cylinder 9, the lock hole 4 is provided in the inner cylinder 10, and the through hole 12 that penetrates the lock pin 5 is provided in the outer cylinder 9. Although provided, it is not restricted to this, For example, while the lock base 3 is provided so that raising / lowering is possible with respect to the outer cylinder 9, the lock hole 4 may be provided in the outer cylinder 9. FIG. In this way, it is possible to attach the beam member (not shown) of the tent to the lock base 3 and provide the lock device 1 between the column body 2 and the beam member.
The elastic body 6 is a coil spring in the previous example, but is not limited thereto, and may be a leaf spring, rubber, or the like.
In the previous example, the operating body rotation restricting mechanism 44 has the protrusion 46 protruding from the lid body 25 of the lock base 3. However, the operation body rotation restricting mechanism 44 is not limited thereto. While projecting a cylinder that rotatably covers the base portion (maximum diameter portion), the protrusion 46 may be formed in the cylinder.

  DESCRIPTION OF SYMBOLS 1 ... Lock device for tents, 2 ... Column body, 3 ... Lock base, 4 ... Lock hole, 5 ... Lock pin, 6 ... Elastic body, 7 ... Operation lever, 8 ... Keeping retaining means, 9 ... Outer cylinder, 10 ... Inner cylinder, 11 ... engagement hole, 12 ... through hole, 13 ... reinforcing rib, 14 ... outer cylinder side sliding body, 15 ... inner cylinder side sliding body, 16 ... frame piece, 17 ... sliding piece, 18 ... projection, 19 DESCRIPTION OF SYMBOLS ... Through-hole, 20 ... Lid piece, 21 ... Insertion piece, 22 ... Sliding piece, 23 ... Cylindrical body, 24 ... Box body, 25 ... Lid body, 26 ... Engagement hole, 27 ... Guide hole, 28 ... Insertion hole, 29 ... Stopper, 30 ... Receiving hole, 31 ... Sliding contact piece, 32 ... Hook piece, 33 ... Mounting piece, 34 ... Fork piece, 35 ... Boss piece, 36 ... Operation piece, 37 ... Support shaft, 38 ... Turning Operation body 39... Rotation restricting mechanism 40... Stopping mechanism 41... Mounting tool 42 .. Stop piece 43. 6 ... projection, 47 ... engaging portion, 48 ... outlet.

Claims (8)

A column body, a lock base provided in the column body so as to be movable up and down, a lock hole provided in the column body, and a lock position and a lock hole provided in the lock base so as to be movable in the longitudinal direction and entering the lock hole A lock pin that can be unlocked from the lock base, an elastic body that is provided on the lock base and constantly urges the lock pin to the lock position, and is provided on the lock base so as to be able to swing and operates the lock pin to the unlock position. The lock lever is provided on the lock base so as to be movable in the longitudinal direction and to be rotatable about the longitudinal axis. A pin, a rotation operation body that is provided on the lock pin and can be rotated from the outside, and is provided between the lock pin and the lock base to restrict the rotation of the lock pin. A rotation restricting mechanism capable of setting the lock pin to the retaining position and the retaining position, and provided between the lock pin and the lock base to prevent the lock pin from moving in the longitudinal direction when the lock pin is at the retaining position. In the tent locking device provided with a locking mechanism that allows the lock pin to move in the longitudinal direction when the lock pin is in the locking release position, the rotation control mechanism of the locking holding means has a rotating operation body horizontally A lock device for a tent characterized in that the lock pin is in the retaining position when in the state, and the lock pin is in the retaining position when the rotary operation body is in the vertical state. The column body includes an outer cylinder and an inner cylinder that is slidably fitted therein. The lock base is fixed to the outer cylinder, and a lock hole is provided in the inner cylinder. The tent locking device according to claim 1, wherein a through-hole penetrating the lock pin is provided. The rotation restricting mechanism includes a substantially oval shaped piece provided on the lock pin, and a piece provided on the lock base that can be brought into contact with the end face of the piece when the lock pin is in the retaining holding position and the retaining release position. The retaining mechanism includes a flange piece of the rotation restricting mechanism, and can be brought into contact with the flange piece when the lock pin is in the retaining position and provided with the lock base and when the lock pin is in the retaining release position. The locking device for a tent according to claim 1, further comprising a retaining piece that prevents the matching. The retention preventing means includes an operation body rotation restriction mechanism that is provided between the rotation operation body and the lock base and restricts the rotation of the rotation operation body from a horizontal state to a vertical state. The tent locking device according to 1. 2. The retaining mechanism according to claim 1, further comprising a free rotation restricting mechanism that is provided between the operation lever and the lock pin and restricts the free rotation of the lock pin so that the rotation operation body maintains a vertical state. Tent locking device. An outer cylinder side sliding body for slidably guiding the inner cylinder is provided at a lower portion of the outer cylinder, and the lock base is detachably attached to the lower portion of the outer cylinder by the outer cylinder side sliding body. The tent locking device according to 2. The operating body rotation restricting mechanism includes a rotating operation body, and a protrusion provided on the lock base and capable of engaging a part of the rotating operation body when the rotating operation body is in a horizontal state and a vertical state. The tent locking device according to claim 4. The free rotation restricting mechanism is formed on the fork piece having a bifurcated shape of the operation lever and the hook piece of the lock pin, and is sandwiched and fitted between the fork pieces of the operation lever when the rotation operation body is in the vertical state. The tent locking device according to claim 5, further comprising an engaging portion.

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