JPS6213673A - Lock apparatus of small cargo cart - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention provides a small luggage cart and a shopping cart that are provided at stations, airports, or self-service stores and can be used free of charge by the general public. This invention relates to improvements to locking/unlocking devices. Such carts are always kept in the storage area, and the general public can freely pull them out and use them, and return them to the designated storage area after use. It is described in French Patent No. 8302716, dated February 18, 1986.

(Prior Art) The above-mentioned locking device is described in detail in the above-mentioned French patent application, and includes locking means for automatically locking each cart to another adjacent cart or to a fixed location in a tightly stored state. We are prepared. Insert a coin or substitute coin into this locking means,
This allows the locking means to be unlocked and releases the cart by means of a pulling force. This locking means is used when the cart is returned to the storage area and locked to an adjacent cart or to a fixed point.
The structure is such that coins or substitute coins are returned. The above unlocking is done by applying a tensile force to the cart.
The above tensile force continuously unlocks the locking means and releases the cart.

The locking means is moved by the tensile force, and
It has a sliding piece that can be fixed by an internal blocking member. This internal blocking member can be released when a sufficient tensile force is applied by the action of the contact edge of the coin or coin substitute, while the sliding piece moves the cart to an adjacent cart or to a fixed point. O Locks and unlocks the connecting locking member (Problem and its solution) However, the drawback of the above locking device is that there is insufficient or no clearance in the front and back direction of the intermediate cart, making it difficult to insert coins. Another problem is that it is not possible to unlock only the middle cart from a row of mutually locked carts.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a locking/unlocking device for a parcel cart or the like of the type described above, which comprises a first part and a first part for locking/unlocking a connected locking member.

The sliding piece is composed of two parts, a second part separated from the first part and located toward the end of the locking device casing, and an intermediate member is provided between the first part and the second part. is inserted, maintaining a separation distance between the first and second portions of the sliding piece that is approximately equal to the moving distance of the sliding piece necessary to unlock the connected locking member, and further, the intermediate member is partially moved outward from within the space accommodated by suitable means,
The first part of the sliding piece is separated from the second part by a tensile force,
By providing a locking/unlocking device for a parcel cart or the like, characterized in that it is displaceable over the above-mentioned separation interval and is thus particularly capable of unlocking a cart locked between two adjacent carts. The purpose is to eliminate the above drawbacks.

According to another feature of the invention, the intermediate member is a substantially rectangular metal plate having two free sides adjacent to corresponding shoulders of the first and second parts of the sliding piece;
It is held between the first and second parts by a linear elastic member whose one end is connected to the member and the other end is connected to one of the first and second parts of the sliding piece.

According to yet another feature of the invention, said means are in the form of a magnetic key which penetrates the casing of the locking device and attracts one of said free ends of the metal plate from said corresponding shoulder. .

Additionally, the cart locking/unlocking device includes two independent passageways passing through the locking device and each passing two different coins, each passageway having a corresponding entrance or slot associated with one of the passageways. When a coin is inserted through the hole, the locking device is unlocked by pulling force and the cart is released.The locking device of the above design can hold new coins of the same denomination in addition to existing coins. Diameter, as seen when issuing
When two types of coins of the same denomination with different thickness dimensions are accepted, there is an advantage that either coin can be used.

The locking device of the present invention is also characterized in that the locking device is in an undisturbed active position and in a held inactive position inside the cavity of one of the passages defined between the sliding piece and the locking device casing. the first holding means for holding a coin, and the other said passage cavity defined between the slide piece and the locking device casing, i.e. the locking device is empty. It is characterized in that it comprises second holding means for holding the other coin in two positions: an active position of the obstruction and a held, inactive position.

According to still another feature of the invention, the first and second
The holding means is fixed to the casing of the locking device and is disposed in each of the two cavities, and the separation distance between the first holding means and the sliding piece is less than or equal to the thickness of one of the coins. The second holding means and the sliding piece are positioned so that the distance between them is less than or equal to the thickness of the other coin.

The present invention can be better understood by reading the following detailed description, taken by way of example only and the accompanying drawings, which illustrate two embodiments, and which may be found in other books other than those described above. The objects, features and advantages of the invention will also become apparent.

(Example) Examples of the present invention will be described below.

The device of the invention can be used on several parcel carts (not shown).
This is for locking the two items in a stored state in close contact with each other.

Referring to Figures 1 to 4, the device of the invention comprises locking means 3 for automatically locking each cart in close storage to another adjacent cart or to a fixed location. Insert a coin or substitute coin 4 into this locking means,
This allows the locking means to be unlocked and releases the cart by means of a pulling force. This locking means 6 is structured to return the coins or substitute coins 4 when the cart is returned to the storage area and locked to an adjacent cart or to a fixed location.

The above-mentioned unlocking is performed by applying a tensile force to the cart, and the above-mentioned tensile force continuously unlocks the locking means B and releases the cart.

This locking means 3 is provided with a sliding piece 5 which can be moved by the above-mentioned tensile force and can be fixed by an internal blocking member B. This internal blocking member 6 can be released when a sufficient tensile force is applied by the action of the contact edge of the coin or coin substitute 4, while the sliding piece 5
Locking is performed between the connecting locking member 37 of the cart and an adjacent cart or a fixed location.

In the illustrated embodiment, the obstruction member is provided by an abutment member B such as a rotary ring rotatably mounted on a substantially horizontal pivot pin 9 so as to be perpendicular to the longitudinal axis x-x' of the locking means B. It is configured. A U-shaped return spring strip 10 acts on this abutment element B.

The movable sliding piece 5 is provided with a shoulder portion 1) on its upper end surface facing the free end of the abutting member B. When a tensile force is applied to the cart without inserting a coin into the locking means, the free end of the self-contacting member B comes into contact with the shoulder 1) and prevents the locking device from being unlocked. FIG. 1 shows the distance a that the sliding piece moves when a tensile force is applied to the cart without inserting a coin into the locking means.

, the locking means 3 can also be in one of two positions: an active position in which a hardened or substitute coin is inserted into the locking means, i.e. the locking device is not disturbed, and an inactive position in which it is restrained. , means 8 for holding coins or coin substitutes 4
It is equipped with As is clear from FIG. 4 of the patent, the holding means 8 comprises a protrusion integrally formed with the inner surface of the cover 3a of the locking device, and has a cavity 1 of a pore 13 passing through the locking device.
is positioned at a predetermined position within 2. The protrusion is located at approximately the same height as the longitudinal axis xx' of the locking device. Such projections can be advantageously used in place of the rocker-spring means in the retaining mechanism described in French Patent Application No. 8,302,716, and the installation of the locking device is considerably time-saving and It is possible to improve the functionality (eliminating the need for moving parts), and the locking device still functions as well as the conventional locking device. This protrusion holds the coin or substitute coin 4 until the tensile force reaches a certain level, that is, until the movable sliding piece 5 makes a certain displacement from the protrusion in the left direction in FIG. Retained within the bore 16, the locking means 6 remain in an unobstructed active position.

Once this predetermined value is exceeded, the coin or substitute 4 moves downwardly within the pore 13 under the force of gravity and enters a restrained, inactive position as shown by the dot-dash line in FIG. The coin 4 is attached to a vertical wall 5 indicated by a dashed line of the sliding piece 5.
a, while also abutting the upper curved part of the return funnel-shaped member 2, so that the 9 cart held in an inactive position can be returned to the storage area and locked to an adjacent cart or to a fixed point. , the sliding piece 5 moves to the right in FIG. 1 to release the coin or substitute coin from the hole 16 and return it. FIG. 1 shows that while unlocking the connection locking member 37,
It shows the total distance that the sliding piece moves. This distance of movement is determined by the distance between the abutment part B connected to the fastening member 42 for attaching the locking means 6 and the nine of the opening provided in the sliding piece and in which the abutment part B is positioned along the axis x-x'. It is defined between the taste edges. The convex portion of the rounded edge is oriented in the direction of the protrusion.

A locking member 37 comprising locking means 6' (illustrated in dash-dotted lines) for locking the cart to an adjacent cart comprises a first female thread means 19.20 and a first female thread means 19.20 connected to the longitudinal end 69.40 of the casing of the locking means B, respectively. It is constituted by a second male thread means 68.

Longitudinal end 39 of locking means 6. That is, in the case of the illustrated embodiment, the first female screw means connected to the right end in FIG.
Two asymmetrical jaws B1) under the action of a spring 60
9 and 20. The two jaw parts 19°20 are the above-mentioned second part of the adjacent cart.
It is designed so that nothing other than a connecting bar or locking pin 68, which constitutes a male thread means and has a fully adjusted diameter, can be fitted inside. In the embodiment shown, said connecting bar 68 is connected to the casing end 40 of the locking means 6 adjacent to the free end 41 of the slide piece 5 (on the left in FIG. 5 is sufficient to connect the connecting bar 68 to both jaws 19 of the locking device of the adjacent cart.

20〃 (only a portion of the jaw is shown with a dashed line).

Therefore, in the unlocked position, the free end 41 of the sliding piece 5, shown in dotted lines in FIG. 1, prevents the carts from being locked together. At that time, the connecting bar 68 and the free end 41 of the sliding piece 5
The gap formed between them is not large enough to allow the connecting bar 68 to be inserted between the jaw parts 19/20" of another cart. Therefore, if the cart is abandoned, the The locking system of the design does not allow the lock bin to be used to lock a cart; in other words, a cart can only be locked to a cart that is already locked.

The movable sliding piece 5 also has a jaw portion 1 of the clamping means.
A tongue 23 is provided which holds the 9.20 in the locked position. 1) 136a + 36b are formed in the innermost part of the jaw part 19.20 when viewed from the locking device.These grooves s6a and 36b are formed on opposite sides of each other in the locking position of the locking device. In the locked position, a gap is defined in which the tongue 26 fits and holds the locking device in that position.

The locking means 3 is fixed to the cart by a fastening member 42 via a suitable fastening means 43 such as a screw or bolt.

Additionally, oval socket means 44 may be provided for the lock bin 38 to accommodate height differences between carts. Additionally, all ends 40 of the locking device 6 are formed with openings 45 sized to provide lateral clearance or play between the carts.

The operation of this locking device has already been described in detail in French Patent Application No. 8302716 and will therefore not be described here.

The locking means 6 locks the locking bin 68' of the locking means 3' of the adjacent cart with the jaws m19, 20, and the locking means 6 locks the locking bin 68' of the locking means 3' of the adjacent cart with the jaws m19, 20 of the adjacent cart.
//, If it is locked at 20", even if you insert a coin,
It is no longer possible to release a cart from the adjacent cart row located on the right side of FIG.

In fact, when a tensile force is applied to the cart in the left direction in FIG.
1 and the free ends of the jaw parts 19//, 20'' in the same direction by a distance C. The distance C is the total moving pressure of the sliding piece 5 previously defined 1) compared to 1) Ib. Due to its short length, the clamping jaws 19,20 are held in the locked position by the tongues 23.

The present invention makes it possible to eliminate such drawbacks.

For this purpose, a first
Two parts, a part 5a and a second part 5b completely separated from the first part 5a and located toward the entire end 40 of the locking device 6 casing, constitute a sliding piece. The first portion 5a and the second portion 5b are connected to each other by an intermediate member or a wedge 5c in the shape of a substantially rectangular metal plate.
-X/ at a distance d apart. A metal plate 5c is housed in a cavity defined between the first part 5a and the second part 5b and having two side walls perpendicular to the axis XX in FIG. The two side walls are metal plates 5c
Shoulder portions 5 a 1 y 5 b 1 of the 1 s portion and the second portion adjacent to the free side portions 5 c 1 and 5 c 2 of respectively.
defined by. The upper side 5c3 and the lower side 5c4 of the metal plate 5c parallel to the axis X-X/ are the upper wall 5h of the cavity.
3t5b3 and the lower wall 5a4. In particular, as shown in the second surface, a part of the surface 5c5 of the metal plate 5c is
It is supported on the surface 5a2 of the first portion 5a and connected to the shoulder 5a1 in the vertical direction and to the shoulder 5a1 in the parallel direction, while it is supported on the surface 5b2 of the second portion 5b and connected to the shoulder 5b in the vertical direction.
1, connected to the axis x-x' in a parallel direction, and a metal plate 5
c and forms the bottom of the cavity that connects with the edges 5a5, 5b5 of the first part 5a and the second part 5bl, respectively, which are spaced apart by a distance d. The width of the shoulder portions 5a1 and 5b1 is approximately the same as the thickness of the metal plate 5c.

A flat surface 5b6 parallel to the axis xx' and spaced apart from the inner wall of the cover 6a of the locking device B is connected to the shoulder portion 5bl.

A linear elastic element 5d in the shape of a metal plate has a surface 5c.
A hook-shaped portion 5d is supported on the surface of the metal plate facing the shoulder portion 5bl, and one free end thereof passes through an opening in the shape of a notch 5c6 provided in the free side portion 5c2 adjacent to the shoulder portion 5bl.
It is connected to the metal plate 5c via l. Elastic piece 5d
penetrates the metal plate 5c, and the other free end is fixed between the corresponding flat surface of the first portion 5a pressed against the elastic piece 5d and the washer 5e by means such as a rivet. The metal plate 5c has shoulder parts 5a1,
It can be seen that it is held in place between 5bI.

Of course, it is possible to position the hook-shaped part near the shoulder 5al and to fix the elastic piece 5d on the second part 5b of the sliding piece.

2 and 6 show a special case that can be fitted into a corresponding hole 51FF3 of the locking device that is provided on the wall of the cover 6a of the locking device B and opens close to the end side 5c2 of the metal plate 5c inside the locking device 6. , a locking device equipped with a special key such as a magnetic key 50 is shown. The axis Y-Y' of the hole in the locking device is perpendicular 6 to the metal plate 5c, and the axis Y-Y' of the hole in the locking device is perpendicular to the vertical axis xx' in FIG.
almost intersects with

The sides of the metal plate are approximately aligned with the axis x-x'.

FIG. 3 shows the magnetic key 50 inserted into the corresponding lock hole. In this case, the surface 5c5 of the magnet 50a located at the free end of the key is located adjacent to the facing surface of the metal plate 5c.

Therefore, the magnet attracts the end portion of the metal plate 5c including the side portion 5c2 located outside the shoulder portion 5b1 and supported on the inner surface of the side wall of the cover 6a of the locking device 6 casing.
The metal plate 5c is inclined with respect to the axis x-x'. FIG. 6 shows the inclined inclination α of the upper side of the metal plate 5c with respect to the axis x-x'. When a tensile force is applied to the object, the first part 5a of the sliding piece 5 5b, it moves to the left in FIG. Simultaneously with this displacement of the first portion 5a, the end portion including the side portion 5c2 of the metal plate 5c enters the space formed between the surface 5b6 and the inner surface 3a1 of the side wall of the cover 3a. FIG. 6 shows the state at the time when the movement of the first portion 5a is completed. It is a diagram that accurately shows the extreme end of the edge 5a5 of the first portion 5a (in this case, the distance d is approximately equal to U). Sliding piece 5
With the first portion 5a at the full end position as described above,
The connecting locking member is unlocked, thus unlocking the cart from the adjacent cart's lock bin 68'. Therefore, the sliding piece 5 designed in this way allows a person with legal authority who possesses a magnetic key to unlock only the middle cart from a row of mutually locked carts.

Thereafter, when the person with legal authority pushes the cart, the first portion 5a of the sliding piece 5 is displaced toward the right and reaches its full end position. That is, the separation distance d is defined again. after that,
When the magnetic key 50 is pulled out from the locking hole, the free side 5c2 returns to its original position due to the elastic strip and faces the shoulder 5bl, so that the metal piece 5c is again attached to the shoulder as shown in FIG. It is positioned between portions 5a1 and 5b1.

Of course, the lock hole 51 has a plurality of shapes that prevent anyone other than a legally authorized person from inserting a magnetic means to unlock the lock hole.

Next, a description will be given with respect to FIGS. 5 to 8 showing a second embodiment of the locking device of the present invention. In this embodiment,
The same parts as described for the first embodiment are
An oval socket means is shown which has the same function as the socket means 44 shown. The same reference numerals are used except for 44a and 44b in FIG. Furthermore, for the sake of clarity, the state in which the sliding piece is composed of two parts as shown in FIGS. 1 to 4 is not shown in the second embodiment, but of course, FIGS. A sliding piece of the same form can be employed in the embodiment shown in the figure.

The device according to the second embodiment has two passages 50. passing through the locking means 6 and allowing the passage of two different types of coins 4, 4'.
It is equipped with 51. The two coins each have a corresponding inlet or pore 52, 53FEi associated with one passage.
When inserted into the cart, the tensile force allows the locking device to be unlocked and the cart to be released. Pores 52 and 56
is provided on a metal plate 54 which is attached in a theft-proof manner to the upper curved part 61 of the locking means 6 casing and forms on the inside a curved entrance part of the passage 50.51. As shown, since the rectangular pore 52 is smaller in length and width than the pore 52, the pore 53 receives the rectangular pore 52. Only coins of the same denomination with a smaller diameter than Coin 4 will be accepted. The coins 4 and 4' may be coins of the same denomination if a new coin with the same denomination and different dimensions as the conventional coin is issued, but the pores 52 and 56 are, of course, each of, for example, 50 cents. Make it possible to accept two types of coins with different denominations, such as teams and 1 franc.

This locking means 6 has two positions in which a coin is received in a cavity 70 extending as an extension of the curved entry portion of the passageway 50, i.e., an active position where the locking means 6 is unobstructed, and an inactive position where it is restrained. A first means 60 for holding the coin 4 in one of two positions is provided. The cavity 70 faces the inner wall 62 of the locking device 6 casing and this inner wall 32,
It is formed between walls 5a forming a cavity within the sliding piece 5.

The wall 5a of the sliding piece is formed by a plurality of posts 5al protruding toward the wall 62 of the locking device 6 casing. The first holding means 60 includes an inner surface 62 of the casing of the locking device.
5, and is therefore disposed within the cavity 70 at approximately the same height as the axis x--x' in FIG. This first holding means 60 is a holding means 60
The sliding piece is positioned within the cavity 70 with respect to the wall 5a such that the distance a between the sliding piece and the coin 4 is equal to or less than the wall thickness of the coin 4. In other words, the distance or width a defined between the free end of the holding means 60 and the free end of the boss 5al is such that a predetermined coin (for example, a 107 run coin) that is wider than the width a is inserted through the pore 53. If so, the coin will be retained within the cavity 70, whereas a coin of the same diameter as the predetermined coin but with a thinner thickness (e.g. a 27 run coin) will not be retained inside and may pass through the trap or locking device. It's worth it. When the cart is returned to its storage area and locked to another adjacent cart or to a fixed point, the cavity 70 opens towards the funnel-like means 80;
Coins will be returned.

When a predetermined coin 4 is inserted into the hole 53, the coin 4 passes through the curved part of the passage 50 and falls into the cavity 70 due to gravity, and the protrusion 60 allows the locking device B to be opened without interference. held in an active position.

When a tensile force is applied to the cart, and therefore to the sliding piece 5, in the left direction in FIG. The coin is held in the cavity 70 by the protrusion 6o until the piece 5 undergoes a certain displacement to the left (in FIG. 1) relative to the protrusion 60.
The locking device 6 is held in an active, undisturbed position.

When the degree of displacement exceeds a certain value, the coin moves downward in the cavity 70 due to gravity and reaches the non-active restraint position shown by the dashed line in FIG. The tongue-like body 26 is located in the groove 36a of the jaw portion 19.20, 3
6b, causing the jaw part 19.20 to be released).

The coin 4 is held in an inactive position by being supported on the vertical wall 5b of the sliding piece 5, shown in dotted lines, and on the upwardly curved portion 81 of the funnel-shaped means 80.

The locking device of the invention also provides for the position in which the coin is received in the cavity 71 extending as an extension of the curved entrance of the passageway 51, i.e. the locking means 3 is in an unobstructed active position and restrained. A second holding means 61 is provided for holding the coin 4' in one of 52 non-active positions. This second holding means 61 is also formed by a protrusion integrally formed with the inner surface 66 of the locking means 6 casing, and the fifth
Although the height is approximately the same as the vertical axis x-x' of the locking device shown in the figure, the protrusion 60 in FIG. 5 is also provided at a slightly higher position.

Similar to the cavity 70, a cavity 71 is defined between the inner wall or inner surface of the locking means casing and the wall 50, forming a cavity for the sliding piece 5 and facing the wall 6. The wall 5c of the sliding piece 5 defines an outer surface facing the inner surface 5a, and is constituted by a plurality of bosses 5c1 that protrude toward the wall 66 of the locking device casing. The second holding means 61 is positioned within the cavity 71 with respect to the wall 5a of the sliding piece so that the distance between the second holding means 61 and the sliding piece is less than the wall thickness of the coin 4'. ing. In other words, the distance or width is less than or equal to the wall thickness of a given coin (e.g., a new 107 run coin) such that this coin is held within the cavity 71, but another coin of the same denomination and different wall thickness is The coin is of such value that it passes through the locking device without being retained. When the cart is returned to the storage area and locked to an adjacent cart or fixed point, cavity 71
opens into the funnel-shaped means 9017'3 and the coin 4' is returned.

In particular, as is clear from FIGS. 6 and 7, said first and second retaining means 60,61 are wider than the width of the coin 4 when the coin 4 is thicker than the coin 4'. It is arranged on one side of the sliding piece 5 in terms of dimensions.

When a desired coin 4' is inserted into the hole 52, this coin 4
′ passes through the curved portion of the passage 51 and falls into the cavity 71 due to gravity, and is retained by the protrusion 61 .

By applying a tensile force to the cart, the movable sliding piece 5 is moved to the protrusion 61.
When the sliding piece 5 is displaced to the left in FIG. By the action of the contact edge of the coin 4', the internal blocking member 6 is released. When the coin 4' is displaced beyond the above-mentioned predetermined displacement, the coin 4' moves downward in the cavity 71 due to gravity, and as shown in FIG. A restrained, inactive position is reached as indicated by the dash-dotted line. coin 4'
is a vertical wall 5 centered on the axis Y-Y' of the locking device.
Since the size of the coin 4' is smaller than the coin 4, the sliding piece 5, which faces the wall 5b and is offset to the left (when viewed in FIG. 5), A return funnel-shaped means 8 supported on a vertical wall and centered on the axis Y-Y'
Return funnel-shaped means 90 facing the upwardly curved portion 81 of 0
It is supported on the upper part of the When the cart is returned to the storage area and locked to an adjacent cart or to a fixed point, the sliding piece 5 moves to the right in FIG. 5, releasing the coin or token from the slot and allowing it to be returned. Of course, during the unlocking phase of the locking means 3, the tongue 23
It can be understood that the locking device is unlocked by releasing the .

Of course, the values of the distances a and b, which take into account the thickness of the inserted coin, are the same as those of the boss 5c, even if the protrusions 6o and 61 have the same dimensions.
When the height of l is lower than the height of the boss 5al, it follows the height of the boss 5c1, and when the heights of the bosses 5a1 and 5cl are equal, it extends from the protrusion 60.61 in the direction of the sliding piece 5. Can be set according to different lengths.

Additionally, according to the configuration illustrated in FIGS. 5-8, passageway 50. Cavity 70. Protrusion 60 and return funnel-shaped means 8
0 is a passage 51.0 centered on the axis Y-Y' of the locking device B. Cavity 71. Projection 61 and return funnel-shaped means 80
It can be seen that they are arranged so that they are almost opposite to each other.

[Brief explanation of the drawing]

1 is a cross-sectional view taken along line I-1 in FIG. 2, showing a first embodiment of a locking device according to the present invention; FIG. 2 is a cross-sectional view taken along line ■-■ in FIG. 1; FIG. is an enlarged view of the circled part in FIG. 2, FIG. 4 is a sectional view taken along line IV-IV in FIG. 1, and FIG. 5 is a second view of the locking device according to the present invention.
The line ■ in Figure 6 shows the state in which the cover of the embodiment is removed.
6 is a sectional view taken along the line Vl-Vl in FIG.
The figure is a sectional view taken along the line ■--■ in FIG. 5, and FIG. 8 is a partial sectional view taken in the direction of arrow A in FIG. 6... Locking device, 5... Sliding piece,
37... Connection locking member 40... End of casing,
50... Magnetic key, 60... First holding means, 6
1...Second holding means, 70.71...Cavity.

Claims (10)

[Claims] (1) Locking means for automatically locking each cart to another adjacent cart or to a fixed point, movable by tension and by the action of the contact edge of a coin or coin substitute; It comprises a movable sliding piece which can be fixed by an unobstructed internal obstruction member, said sliding piece locking and unlocking a locking member connecting the cart to another adjacent cart or to a fixed point, and which locks and unlocks a locking member that connects the cart to another adjacent cart or to a fixed point, and which allows coins or A small baggage cart or the like having a locking means that accepts a substitute coin, releases the cart by unlocking the locking means and applying a pulling force, and unlocks the cart by the pulling force. In the locking/unlocking device, a first part (5a) for locking and unlocking of the connecting locking member (37) is separated from the first part,
The sliding piece (
5), an intermediate member (5c) is accommodated between the first and second portions, and an intermediate member (5c) is provided between the first and second portions of the sliding piece 5 for unlocking the connection locking member (37). said intermediate member is moved partially outwardly from the space accommodated by suitable means (50), so as to maintain a separation distance approximately equal to the required distance of movement of the sliding piece; (5a) is displaced by said tensile force over said separation distance relative to said second part (5b), so that said cart is locked, in particular between two adjacent carts. A locking device for a small baggage cart, etc., characterized in that the lock can be unlocked by another adjacent cart when the cart is closed. (2) The intermediate member has both free ends adjacent to the corresponding shoulders (5a1, 5b1) of the first and second sliding piece portions, and is formed by a linear elastic element (5b), A substantially rectangular metal plate is held between the two shoulder parts, and the linear element (5b) has one end connected to the intermediate member and the other end connected to the first part and the first part of the sliding piece. A locking device for a small baggage cart, etc., as set forth in claim 1, characterized in that it is connected to one of the two parts. (3) The means (50) is inserted through the casing of the locking device (3) and adsorbs the end of the metal plate (5c), including one of the free sides, from the corresponding shoulder. A locking device for a small luggage cart or the like according to claim 1 or 2, characterized in that the locking device is in the form of a magnetic key that can be locked. (4) The elastic linear member is flatly supported on the surface of the metal plate (5c) adjacent to the insertion hole of the magnetic key (50), and extends beyond the metal plate (5c), and is attached to the sliding piece. Claims 1 to 3 are characterized in that the other end is a metal strip connected to one of the first and second parts. Locking device for small luggage carts, etc. (5) The end of the metal strip (5c) is a metal plate (5c)
A hook-shaped part (5d1) passing through the corresponding hole (5c6) of
according to any one of claims 1 to 4, characterized in that the other end is connected to the first portion (5a) of the sliding piece by means such as a rivet. A locking device for small luggage carts, etc. (6) two independent passages (50, 51) passing through the locking device (3) and allowing the passage of two different types of coins, each with a corresponding entrance or slot associated with one passage; A small baggage cart according to claim 1, characterized in that the hole is provided with a passage that allows the locking device to be unlocked and the cart to be released by a tensile force when a coin is inserted. Locking devices such as (7) A position where a coin is accommodated in the cavity (70) of the one passageway of the locking device (3) formed between the sliding piece (5) and the locking device casing, that is, the locking device first holding means (60) for holding one of said coins (50) in one of two positions, an unobstructed active position and a restrained inactive position; , sliding piece (
5) and the casing of the locking device (3), accommodated in the cavity (71) of said other passage of the locking device, i.e. the unobstructed active position of the locking device and the retention; The small coin according to claim 6, further comprising a second holding means for holding the other side (4') of the coin in one of two positions, that is, a non-active position. Locking device for luggage carts, etc. (8) The first and second holding means (60, 61)
are fixed to the casing of the locking device (3), respectively disposed within the cavities (70, 71), and the first retaining means (6).
0) and the sliding piece is less than or equal to the thickness of the coin (4), and the separation distance between the second holding means (61) and the sliding piece is less than or equal to the thickness of the other coin (4'). A locking device for a small baggage cart or the like according to claim 7, characterized in that the locking device is positioned relative to the sliding piece. (9) The first and second holding means (60, 61),
A locking device for a small baggage cart or the like as set forth in claim 8, characterized in that it is in the form of a protrusion positioned on one side of the sliding piece (5). (10) The obstruction member (6) is connected to both the coins (4, 4')
A locking device for a small baggage cart, etc., as set forth in claim 6, characterized in that it is commonly used for.