JPH056845Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a plug-in fence such as a side rail that is installed on the side of a bed to prevent bedding such as futons and patients from falling. It is something.

(Prior art) In the case of a plug-in type fence, in which posts provided on the fence body are fitted into mounting tubes constructed at appropriate locations on the side frame of a bed, etc., it is easy to remove the fence when necessary. For this purpose, there are few that are equipped with a mechanism to prevent them from falling off. For this reason, there are various problems such as it falling out when not necessary, or falling out easily, and there have been cases where an elderly person has pulled it out and used it as a weapon.

In order to solve such problems, conventionally, as disclosed in Japanese Utility Model Application Publication No. 62-85248,
There are railings for sleeping beds that have a mechanism to prevent them from falling out on the pillars. As shown in Fig. 4, this locking mechanism is provided with an actuating rod d having a male threaded part b and a tip flange c formed at the tip of a support post a of the fence body, and an actuating rod d formed with a male threaded part b of the actuating rod d. The tube e is screwed together to make the distance between the actuating tube e and the tip flange c expandable and retractable, and a stopper body f is interposed between the actuator tube e and the flange c, and the flange c and the stopper body f By tilting the contact surface and rotating the actuating cylinder e to reduce the distance, the stopper body f is laterally shifted by the slope and protrudes in the radial direction, and its side surface is pressed against the inner wall of the mounting cylinder g. The friction force between them is used to prevent it from coming off.

(Problem to be solved by the invention) In the conventional retaining mechanism described above, the stopper body f is made to protrude in the lateral direction by the rotation of the actuating cylinder e.
Since the side surface is simply pressed against the inner wall of the mounting tube g,
Pressure force must be applied by the actuating tube, and at this time, the stopper body f must be moved laterally while being pressed against the actuating tube e and the collar c, which requires a relatively large amount of force, and also reduces pressure. Since the holding is performed by the screwing of the male threaded portion b and the female threaded portion h of the actuating tube e, if the screwing becomes loose, the pressing force and the retaining force will be rapidly weakened. In addition, with this locking mechanism, when attaching or detaching the fence, the actuating cylinder e
It is troublesome to have to rotate it.

The present invention aims to solve the above problems.

(Means for Solving the Problems) The configuration of the present invention will be explained with reference to FIGS. 1 to 3 corresponding to the embodiments. First, the retaining mechanism described in claim 1 of the utility model registration is , fence body 1
Attachment tube 3 configured with pillars 2 provided at appropriate locations on the bed
In the plug-in type fence that is inserted into and erected, a locking member 5 is fixed to the tip 4 of the pillar 2 so as to be swingable in the vertical direction, and a locking member 5 is attached to the pillar 2 adjacent to the locking member 5. An actuating tube 6 that can be fitted into the mounting tube 3 on the locking member 5 side is slidably fitted, and means 7 for pushing and swinging the locking member 5 by the actuating tube 6 is configured. 6 in the direction of the lock member 5, the lock member 5 is provided with a biasing means 8 for biasing the lock member 5 toward the inner wall of the mounting cylinder 3 on the side of the operating cylinder 6 with respect to its swing axis 9. An abutment part 10 that comes into contact with is provided, and an operating part 11 is provided in a portion of the operating cylinder 6 that does not fit into the mounting cylinder 3, and a lower part of the mounting cylinder 3 is provided with a contact part 10 that abuts on the tip part 4 of the support column 2. This is provided with an engagement support portion 12 that stops the movement.

The mechanism described in item 2 is the mechanism described in item 1, in which the means 7 for pushing and swinging the lock member 5 by the actuating cylinder 6 is formed on the facing surface of the actuating cylinder 6 and the lock member 5, It is constituted by an inclined surface in which the opposing surface widens from the contact portion 10 side toward the other side.

Further, in the mechanism described in item 3, in the mechanism described in item 1, the locking member 5 is provided at the tip end portion of the support column 2.
It is constructed as a cylindrical body that fits loosely into the.

Further, in the mechanism described in Item 4, in the mechanism described in Item 1, the locking member 5 has a portion 13 on the opposite side of the abutting portion 10 with respect to the swing shaft 9 when the actuating cylinder 6 is inserted into the mechanism. The configuration is such that the axial projection area 14 on the outside of the portion does not protrude in the lateral direction.

The mechanism described in item 5 is the mechanism described in item 1, in which the locking member 5 is configured to be returned in a direction in which the abutting portion 10 is separated from the inner wall of the mounting tube 3 by means of a return rotation means 15. It is.

Furthermore, in the mechanism described in Item 1, the mechanism described in Item 6 is such that the engagement portion 16 that engages with the engagement support portion 12 of the mounting tube 3 is moved beyond the locking member 5 to the distal end portion 4 of the column 2. It is constructed so that it protrudes.

(Actions and Examples) The operation of the present invention will be explained with reference to examples.

As shown in FIG. 1, by fitting and supporting the tips 4 of an appropriate number of posts 2 provided on the fence main body 1 into mounting tubes 3 formed on a suitable position of the bed, for example, a floor support frame member 17, the fence can be installed. The main body 1 can be supported in an upright position. At this time, on the side of the column 2 to which the mechanism of the present invention is applied, the locking member 5 and a part of the actuating tube 6 are fitted into the mounting tube 3, and the tip end 4 of the column 2 is attached to the lower part of the mounting tube 3. It is stopped by the engagement support part 12 to prevent it from falling and to support it. The portion of the tip 4 of the support column 2 that is engaged with the engagement support portion 12 and stopped in this manner, that is, the engagement portion 16, may be the portion of the lock member 5, or the tip portion 4 of the column 2 may be a portion of the lock member 5. To,
The engaging portion 16 may be configured to protrude beyond the locking member 5.

First, in the configuration in which the lock member 5 is configured as the engaging portion 16, when the support column 2 is in the upright and supported state described above, the actuating cylinder 6 pushes the lock member 5 by the urging means 8. Even when the lock member 5 is engaged with the above-mentioned engagement support portion 12, the lock member 5 does not swing, and therefore the contact portion 10 of the lock member 5 does not contact the inner wall of the mounting tube 3.

In this state, when the support 2 is pulled in the direction to remove it from the mounting tube 3, that is, pulled upward, the tip 4 of the support 2 and the lock member 5 move slightly upward. When the engaging portion 16 of the locking member 5 separates from the engaging support portion 12 in this way, the locking member 5 becomes swingable and is caused to swing by the actuating cylinder 6. The portion 10 contacts the inner wall of the mounting tube 3 above the swing shaft 9. In such a state, when a force is applied from the support column 2 to move the locking member 5 upward, this applied force is converted into a force that causes the contact portion 10 to press against the inner wall of the mounting tube 3. , in the so-called biting direction, so the lock member 5 is prevented from moving upward by a great force due to the principle of the inclined lock, and the mounting cylinder 3 is prevented from moving upward.
It is possible to reliably prevent the distal end portion 4 of the support column 2 from coming off.

Furthermore, when the engaging portion 16 is configured separately from the locking member 5, the locking member 5 is swingable even when the pillar 2 is in the upright position as described above, so that the locking member 5 can be rocked by the actuating cylinder 6. The abutting portion 10 is in pressure contact with the inner wall of the mounting tube 3, so that the locking member 5 is always in a state in which the above-mentioned tilt lock is activated.

The above-mentioned prevention of the pillar 2 from falling off can be automatically performed by simply fitting the locking member 5 and a part of the actuating cylinder 6 into the mounting cylinder 3, that is, by erecting the fence body 1, as described above. You will never forget to perform an operation.

Next, in the above-mentioned upright state, when the column 2 is pulled upward, when the actuating cylinder 6 is moved upward by the operating section 11, the locking member 5 is moved upwardly, and the actuating cylinder 6 is moved upwardly. Therefore, since it cannot be swung, the above-mentioned tilted lock is not formed, and therefore both the mounting cylinder 3 and the lock member 5 can be removed from the mounting cylinder 3.

As mentioned above, when fitting the lock member 5 and part of the actuating cylinder 6 into the mounting cylinder 3, the actuating cylinder 6 is moved using the operation part 11 and the lock member 5 is pushed in the same way as when removing it. However, in the locking member 5, the portion 13 on the opposite side to the abutting portion 10 with respect to the swing axis 9 is moved to the axially projected area 14 outside the fitting portion of the actuating cylinder 6. If the structure is such that it does not protrude in the lateral direction, fitting can be performed without operating the operating cylinder 6 at all, and the installation operation of the fence body 1 is not troublesome. This is because when fitting is carried out in such a state, the abutting portion 10 that protrudes in the lateral direction of the actuating cylinder 6 becomes in a so-called escape direction with respect to the inner wall of the mounting cylinder 3.

Next, a means 7 for pushing and swinging the lock member 5 by the actuating cylinder 6 is formed on the opposing surfaces of the actuating cylinder 6 and the lock member 5, so that the opposing surfaces widen from the swinging side to the other side. It can be configured by an inclined surface. The inclined surface is formed between the actuating cylinder 6 and the locking member 5.
In addition to being configured on one side of the opposing surface, it may also be configured on both sides. Further, the means 7 can also be constructed by providing a projection (not shown) at a suitable location on the opposing surface of the actuating cylinder 6 or the locking member 5.

Next, the locking member 5 is attached to the tip end 4 of the support column 2.
If it is constructed as a cylindrical body that fits loosely into the support column 2, it can be easily swingably fixed to the support column 2 using, for example, a spring pin, and can also be used as the above-mentioned engagement portion 16 to provide high strength. However, the locking member 5 can also be constructed of a plate-like member or the like by constructing the engaging portion 16 separately.

Next, the lock member 5 may be provided with a return rotation means 15 for returning the lock member 5 from the state swung by the oscillation means 7; When the actuating cylinder 6 is moved upward and the swinging means 7 is not operated, the locking member 5 is returned and the abutment part 10 is separated from the inner wall of the mounting cylinder 3. This can be done more smoothly. Such return rotation means 15 can be constructed by a spring or by weight distribution of the locking member 5.

In the above embodiments, the mounting tube 3 has the side where the tip end 4 of the support column 2 is fitted upward, but it may also be configured laterally, in which case the support tube 2
The tip portion 4 may be configured laterally. Furthermore, the fence according to the present invention can be used not only as a side rail, but also as a headboard or footboard fence.

(Effects of the invention) As described above, the present invention provides a locking member that acts as an inclined lock at the tip of a post provided on the fence body, and increases the force in the direction of pulling out the post by lever ratio, thereby locking the abutting part. Since it presses against the inner wall of the mounting cylinder in the biting direction and prevents it from coming off, it can prevent it from coming off more reliably than when pressure is obtained by screwing, etc. Also, the operation as a tilt lock is performed by the biasing means. Since this is done automatically, there is no need to forget the locking operation, and from this point of view as well, there is an effect that the locking operation can be performed reliably.

[Brief explanation of the drawing]

Figures 1 to 3 correspond to embodiments of the present invention, with Figure 1 being an external explanatory diagram of the overall configuration, and Figure 2 a.
2 is an explanatory cross-sectional view of the main part showing the operation of inserting or extracting the post, FIG. FIG. 3 is an explanatory cross-sectional view showing another example of the main part. Further, FIGS. 4a and 4b are explanatory cross-sectional views of the main parts of the conventional example. Symbols 1... Fence body, 2... Support, 3... Mounting tube, 4... Tip, 5... Lock member, 6... Operating tube, 7... Pushing and swinging means, 8... Biasing means , 9
... Swing axis, 10 ... Contact section, 11 ... Operation section,
12... Engagement support portion, 13... Opposite side portion, 14...
... Axial projection area, 15 ... Return rotation means, 16
...Engagement portion, 17...Floor support frame member.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a plug-in type fence that is erected by inserting posts provided on the fence body into mounting tubes configured at appropriate locations on the bed,
A lock member is fixed to the tip of the support column so as to be able to swing in the vertical direction, and an operating cylinder that can be fitted with the lock member side into the mounting cylinder is slidably fitted into the support column adjacent to the lock member. Together, they constitute a means for pushing and swinging the lock member by the actuating cylinder, and also urge the actuating cylinder towards the lock member, and the lock member is provided with the following effects:
Providing a contact portion that contacts the inner wall of the mounting cylinder on the side of the operating cylinder with respect to the swing axis, and
The operating tube is provided with an operating portion in a portion that does not fit into the attachment tube, and the lower part of the attachment tube is provided with an engaging portion for stopping the tip of the support. A locking mechanism for plug-in fences. (2) In the mechanism described in paragraph 1, the means for pushing and swinging the locking member by the actuating cylinder is formed on the opposing surfaces of the actuating cylinder and the locking member, and is arranged so as to face each other from the abutting part side to the other side. A slip-off prevention mechanism in a plug-in fence for a bed, characterized in that it is constructed of an inclined surface with a widening surface. (3) A slip-out prevention mechanism in a plug-in fence for a bed, in which the locking member is constructed as a cylindrical body that loosely fits into the tip of the support. (4) In the mechanism described in paragraph 1, the locking member is
A plug-in fence for a bed, characterized in that a portion on the opposite side of the abutment portion with respect to the rotation axis does not protrude in the lateral direction of the axial projection area outside the fitting portion of the actuating cylinder. A mechanism to prevent it from coming off. (5) In the mechanism described in paragraph 1, the locking member is configured to be returned in a direction in which the abutting portion is separated from the inner wall of the mounting tube by means of return rotation means. A locking mechanism for fences. (6) In the mechanism described in paragraph 1, a portion for engaging with the engaging portion of the mounting tube is formed at the tip of the support so as to protrude beyond the locking member. A locking mechanism for plug-in fences.